From 46cc65a767f458aec4d342b814a661a15dc31be1 Mon Sep 17 00:00:00 2001 From: Josef Sipek Date: Fri, 8 Dec 2006 02:37:28 -0800 Subject: [PATCH] struct path: convert pci Signed-off-by: Josef Sipek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/proc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index 99cf3337976..4a6760a3b31 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -23,7 +23,7 @@ static loff_t proc_bus_pci_lseek(struct file *file, loff_t off, int whence) { loff_t new = -1; - struct inode *inode = file->f_dentry->d_inode; + struct inode *inode = file->f_path.dentry->d_inode; mutex_lock(&inode->i_mutex); switch (whence) { @@ -48,7 +48,7 @@ proc_bus_pci_lseek(struct file *file, loff_t off, int whence) static ssize_t proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { - const struct inode *ino = file->f_dentry->d_inode; + const struct inode *ino = file->f_path.dentry->d_inode; const struct proc_dir_entry *dp = PDE(ino); struct pci_dev *dev = dp->data; unsigned int pos = *ppos; @@ -130,7 +130,7 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp static ssize_t proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, loff_t *ppos) { - const struct inode *ino = file->f_dentry->d_inode; + const struct inode *ino = file->f_path.dentry->d_inode; const struct proc_dir_entry *dp = PDE(ino); struct pci_dev *dev = dp->data; int pos = *ppos; @@ -245,7 +245,7 @@ static int proc_bus_pci_ioctl(struct inode *inode, struct file *file, unsigned i #ifdef HAVE_PCI_MMAP static int proc_bus_pci_mmap(struct file *file, struct vm_area_struct *vma) { - struct inode *inode = file->f_dentry->d_inode; + struct inode *inode = file->f_path.dentry->d_inode; const struct proc_dir_entry *dp = PDE(inode); struct pci_dev *dev = dp->data; struct pci_filp_private *fpriv = file->private_data; -- cgit v1.2.3 From bf4735a46a6b8dfc1a951f05683e80374d8baa70 Mon Sep 17 00:00:00 2001 From: Don Mullis Date: Sun, 10 Dec 2006 02:18:37 -0800 Subject: [PATCH] Kconfig refactoring for better menu nesting Refactor Kconfig content to maximize nesting of menus by menuconfig and xconfig. Tested by simultaneously running `make xconfig` with and without patch, and comparing displays. Signed-off-by: Don Mullis Signed-off-by: Randy Dunlap Cc: Sam Ravnborg Cc: Roman Zippel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/hotplug/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index 6e780db9454..adce4204d87 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -76,7 +76,8 @@ config HOTPLUG_PCI_IBM config HOTPLUG_PCI_ACPI tristate "ACPI PCI Hotplug driver" - depends on (!ACPI_DOCK && ACPI && HOTPLUG_PCI) || (ACPI_DOCK && HOTPLUG_PCI) + depends on HOTPLUG_PCI + depends on (!ACPI_DOCK && ACPI) || (ACPI_DOCK) help Say Y here if you have a system that supports PCI Hotplug using ACPI. -- cgit v1.2.3 From 5cbded585d129d0226cb48ac4202b253c781be26 Mon Sep 17 00:00:00 2001 From: "Robert P. J. Day" Date: Wed, 13 Dec 2006 00:35:56 -0800 Subject: [PATCH] getting rid of all casts of k[cmz]alloc() calls Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King , Ian Molton Cc: Mikael Starvik Cc: Yoshinori Sato Cc: Roman Zippel Cc: Geert Uytterhoeven Cc: Ralf Baechle Cc: Paul Mackerras Cc: Kyle McMartin Cc: Benjamin Herrenschmidt Cc: Martin Schwidefsky Cc: "David S. Miller" Cc: Jeff Dike Cc: Greg KH Cc: Jens Axboe Cc: Paul Fulghum Cc: Alan Cox Cc: Karsten Keil Cc: Mauro Carvalho Chehab Cc: Jeff Garzik Cc: James Bottomley Cc: Ian Kent Cc: Steven French Cc: David Woodhouse Cc: Neil Brown Cc: Jaroslav Kysela Cc: Takashi Iwai Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/hotplug/cpqphp_nvram.c | 8 ++++---- drivers/pci/hotplug/pciehp_hpc.c | 2 +- drivers/pci/pcie/aer/aerdrv.c | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c index 298a6cfd840..ae5e974c45a 100644 --- a/drivers/pci/hotplug/cpqphp_nvram.c +++ b/drivers/pci/hotplug/cpqphp_nvram.c @@ -520,7 +520,7 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl) return 2; while (nummem--) { - mem_node = (struct pci_resource*) kmalloc(sizeof(struct pci_resource), GFP_KERNEL); + mem_node = kmalloc(sizeof(struct pci_resource), GFP_KERNEL); if (!mem_node) break; @@ -548,7 +548,7 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl) } while (numpmem--) { - p_mem_node = (struct pci_resource*) kmalloc(sizeof(struct pci_resource), GFP_KERNEL); + p_mem_node = kmalloc(sizeof(struct pci_resource), GFP_KERNEL); if (!p_mem_node) break; @@ -576,7 +576,7 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl) } while (numio--) { - io_node = (struct pci_resource*) kmalloc(sizeof(struct pci_resource), GFP_KERNEL); + io_node = kmalloc(sizeof(struct pci_resource), GFP_KERNEL); if (!io_node) break; @@ -604,7 +604,7 @@ int compaq_nvram_load (void __iomem *rom_start, struct controller *ctrl) } while (numbus--) { - bus_node = (struct pci_resource*) kmalloc(sizeof(struct pci_resource), GFP_KERNEL); + bus_node = kmalloc(sizeof(struct pci_resource), GFP_KERNEL); if (!bus_node) break; diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 6d3f580f266..25d3aadfddb 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -1320,7 +1320,7 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) DBG_ENTER_ROUTINE spin_lock_init(&list_lock); - php_ctlr = (struct php_ctlr_state_s *) kmalloc(sizeof(struct php_ctlr_state_s), GFP_KERNEL); + php_ctlr = kmalloc(sizeof(struct php_ctlr_state_s), GFP_KERNEL); if (!php_ctlr) { /* allocate controller state data */ err("%s: HPC controller memory allocation error!\n", __FUNCTION__); diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c index 55866b6b26f..6f5fabbd14e 100644 --- a/drivers/pci/pcie/aer/aerdrv.c +++ b/drivers/pci/pcie/aer/aerdrv.c @@ -148,7 +148,7 @@ static struct aer_rpc* aer_alloc_rpc(struct pcie_device *dev) { struct aer_rpc *rpc; - if (!(rpc = (struct aer_rpc *)kmalloc(sizeof(struct aer_rpc), + if (!(rpc = kmalloc(sizeof(struct aer_rpc), GFP_KERNEL))) return NULL; -- cgit v1.2.3 From 7461b60afa62b26943e97861d87b9f9a32d7fd9c Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 29 Nov 2006 21:18:04 +0000 Subject: PCI: use /sys/bus/pci/drivers//new_id first Unfortunately, the .../new_id feature does not work with the 8250_pci driver. The reason for this comes down to the way .../new_id is implemented. When PCI tries to match a driver to a device, it checks the modules static device ID tables _before_ checking the dynamic new_id tables. When a driver is capable of matching by ID, and falls back to matching by class (as 8250_pci does), this makes it absolutely impossible to specify a board by ID, and as such the correct driver_data value to use with it. Let's say you have a serial board with vendor 0x1234 and device 0x5678. It's class is set to PCI_CLASS_COMMUNICATION_SERIAL. On boot, this card is matched to the 8250_pci driver, which tries to probe it because it matched using the class entry. The driver finds that it is unable to automatically detect the correct settings to use, so it returns -ENODEV. You know that the information the driver needs is to match this card using a device_data value of '7'. So you echo 1234 5678 0 0 0 0 7 into new_id. The kernel attempts to re-bind 8250_pci to this device. However, because it scans the PCI driver tables, it _again_ matches the class entry which has the wrong device_data. It fails. End of story. You can't support the card without rebuilding the kernel (or writing a specific PCI probe module to support it.) So, can we make new_id override the driver-internal PCI ID tables? IOW, like this: From: Russell King Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-driver.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index e5ae3a0c13b..de5b9011d03 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -162,14 +162,9 @@ const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, const struct pci_device_id *pci_match_device(struct pci_driver *drv, struct pci_dev *dev) { - const struct pci_device_id *id; struct pci_dynid *dynid; - id = pci_match_id(drv->id_table, dev); - if (id) - return id; - - /* static ids didn't match, lets look at the dynamic ones */ + /* Look at the dynamic ids first, before the static ones */ spin_lock(&drv->dynids.lock); list_for_each_entry(dynid, &drv->dynids.list, node) { if (pci_match_one_device(&dynid->id, dev)) { @@ -178,7 +173,8 @@ const struct pci_device_id *pci_match_device(struct pci_driver *drv, } } spin_unlock(&drv->dynids.lock); - return NULL; + + return pci_match_id(drv->id_table, dev); } static int pci_call_probe(struct pci_driver *drv, struct pci_dev *dev, -- cgit v1.2.3 From 0c875c28649eac0adb8d2e2efac2186c3089e100 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Sun, 3 Dec 2006 11:55:34 -0800 Subject: PCI quirks: remove redundant check Removes redundant check for dev->subordinate; if it is NULL, the function returns before the patch-affected code region. Signed-off-by: David Rientjes Acked-by: Brice Goglin Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 9ca9b9bf616..757186390d8 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1688,8 +1688,7 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) * a single one having MSI is enough to be sure that MSI are supported. */ pdev = pci_get_slot(dev->bus, 0); - if (dev->subordinate && !msi_ht_cap_enabled(dev) - && !msi_ht_cap_enabled(pdev)) { + if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) { printk(KERN_WARNING "PCI: MSI quirk detected. " "MSI disabled on chipset %s.\n", pci_name(dev)); -- cgit v1.2.3 From f1e79092d9a59e2b1c8eae3b0f4ef3827dda08a0 Mon Sep 17 00:00:00 2001 From: Linas Vepstas Date: Fri, 1 Dec 2006 16:31:27 -0800 Subject: rpaphp: compiler warning cleanup This janitorial patch removes the following annoying compile-time message: drivers/pci/hotplug/rpaphp_slot.c:57: warning: ignoring return value of sfs_create_file declared with attribute warn_unused_result It also fixes a typo, removes some misc crud. Signed-off-by: Linas Vepstas Cc: John Rose Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/rpaphp_slot.c | 47 +++++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 24 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/rpaphp_slot.c b/drivers/pci/hotplug/rpaphp_slot.c index b771196a654..3009193f005 100644 --- a/drivers/pci/hotplug/rpaphp_slot.c +++ b/drivers/pci/hotplug/rpaphp_slot.c @@ -47,21 +47,11 @@ static ssize_t location_read_file (struct hotplug_slot *php_slot, char *buf) return retval; } -static struct hotplug_slot_attribute hotplug_slot_attr_location = { +static struct hotplug_slot_attribute php_attr_location = { .attr = {.name = "phy_location", .mode = S_IFREG | S_IRUGO}, .show = location_read_file, }; -static void rpaphp_sysfs_add_attr_location (struct hotplug_slot *slot) -{ - sysfs_create_file(&slot->kobj, &hotplug_slot_attr_location.attr); -} - -static void rpaphp_sysfs_remove_attr_location (struct hotplug_slot *slot) -{ - sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_location.attr); -} - /* free up the memory used by a slot */ static void rpaphp_release_slot(struct hotplug_slot *hotplug_slot) { @@ -145,7 +135,7 @@ int rpaphp_deregister_slot(struct slot *slot) list_del(&slot->rpaphp_slot_list); /* remove "phy_location" file */ - rpaphp_sysfs_remove_attr_location(php_slot); + sysfs_remove_file(&php_slot->kobj, &php_attr_location.attr); retval = pci_hp_deregister(php_slot); if (retval) @@ -160,36 +150,45 @@ EXPORT_SYMBOL_GPL(rpaphp_deregister_slot); int rpaphp_register_slot(struct slot *slot) { + struct hotplug_slot *php_slot = slot->hotplug_slot; int retval; dbg("%s registering slot:path[%s] index[%x], name[%s] pdomain[%x] type[%d]\n", __FUNCTION__, slot->dn->full_name, slot->index, slot->name, slot->power_domain, slot->type); + /* should not try to register the same slot twice */ - if (is_registered(slot)) { /* should't be here */ + if (is_registered(slot)) { err("rpaphp_register_slot: slot[%s] is already registered\n", slot->name); - rpaphp_release_slot(slot->hotplug_slot); - return -EAGAIN; + retval = -EAGAIN; + goto register_fail; } - retval = pci_hp_register(slot->hotplug_slot); + + retval = pci_hp_register(php_slot); if (retval) { err("pci_hp_register failed with error %d\n", retval); - rpaphp_release_slot(slot->hotplug_slot); - return retval; + goto register_fail; } - - /* create "phy_locatoin" file */ - rpaphp_sysfs_add_attr_location(slot->hotplug_slot); - /* add slot to our internal list */ - dbg("%s adding slot[%s] to rpaphp_slot_list\n", - __FUNCTION__, slot->name); + /* create "phy_location" file */ + retval = sysfs_create_file(&php_slot->kobj, &php_attr_location.attr); + if (retval) { + err("sysfs_create_file failed with error %d\n", retval); + goto sysfs_fail; + } + /* add slot to our internal list */ list_add(&slot->rpaphp_slot_list, &rpaphp_slot_head); info("Slot [%s](PCI location=%s) registered\n", slot->name, slot->location); num_slots++; return 0; + +sysfs_fail: + pci_hp_deregister(php_slot); +register_fail: + rpaphp_release_slot(php_slot); + return retval; } int rpaphp_get_power_status(struct slot *slot, u8 * value) -- cgit v1.2.3 From 83e42bcdd3be31a0df8b1a8d2d3fa1a65e43815c Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Wed, 6 Dec 2006 22:07:30 +0900 Subject: PCI: pcieport-driver: remove invalid warning message The following warning message should not be displayed for devices which don't use an interrupt pin. pcie_portdrv_probe->Dev[XXXX:XXXX] has invalid IRQ. Check vendor BIOS Signed-off-by: Kenji Kaneshige Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pcie/portdrv_pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index b4da7954611..f17e7ed2b2a 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -90,7 +90,7 @@ static int __devinit pcie_portdrv_probe (struct pci_dev *dev, return -ENODEV; pci_set_master(dev); - if (!dev->irq) { + if (!dev->irq && dev->pin) { printk(KERN_WARNING "%s->Dev[%04x:%04x] has invalid IRQ. Check vendor BIOS\n", __FUNCTION__, dev->device, dev->vendor); -- cgit v1.2.3 From d86f90f9913d27bb968132bf63499c56bca56db6 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 4 Dec 2006 15:14:44 -0800 Subject: pci: Introduce pci_find_present This works like pci_dev_present but instead of returning boolean returns the matching pci_device_id entry. This makes it much more useful. Code bloat is basically nil as the old boolean function is rewritten in terms of the new one. This will be used by the updated VIA PCI quirks for one Signed-off-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/pci/search.c | 39 ++++++++++++++++++++++----------------- 1 file changed, 22 insertions(+), 17 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/search.c b/drivers/pci/search.c index 2f13eba5d5a..2bbafe0f79b 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -413,6 +413,24 @@ exit: return dev; } +const struct pci_device_id *pci_find_present(const struct pci_device_id *ids) +{ + struct pci_dev *dev; + struct pci_device_id * found = NULL; + + WARN_ON(in_interrupt()); + down_read(&pci_bus_sem); + while (ids->vendor || ids->subvendor || ids->class_mask) { + list_for_each_entry(dev, &pci_devices, global_list) { + if ((found = pci_match_one_device(ids, dev)) != NULL) + break; + } + ids++; + } + up_read(&pci_bus_sem); + return found; +} + /** * pci_dev_present - Returns 1 if device matching the device list is present, 0 if not. * @ids: A pointer to a null terminated list of struct pci_device_id structures @@ -424,27 +442,14 @@ exit: * find devices that are usually built into a system, or for a general hint as * to if another device happens to be present at this specific moment in time. */ + int pci_dev_present(const struct pci_device_id *ids) { - struct pci_dev *dev; - int found = 0; - - WARN_ON(in_interrupt()); - down_read(&pci_bus_sem); - while (ids->vendor || ids->subvendor || ids->class_mask) { - list_for_each_entry(dev, &pci_devices, global_list) { - if (pci_match_one_device(ids, dev)) { - found = 1; - goto exit; - } - } - ids++; - } -exit: - up_read(&pci_bus_sem); - return found; + return pci_find_present(ids) == NULL ? 0 : 1; } + EXPORT_SYMBOL(pci_dev_present); +EXPORT_SYMBOL(pci_find_present); EXPORT_SYMBOL(pci_find_device); EXPORT_SYMBOL(pci_find_device_reverse); -- cgit v1.2.3 From d3bac118fb27a365d5e9f54f4a078eb9b42f968f Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 22 Nov 2006 18:26:16 +1100 Subject: PCI: Create __pci_bus_find_cap_start() from __pci_bus_find_cap() The current implementation of __pci_bus_find_cap() does two things, first it determines the start of the capability chain for the device, and then it trys to find the requested capability. Split these out, so that we can use the two parts independantly in a subsequent patch. Externally visible behaviour should be unchanged. Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci.c | 28 +++++++++++++++++++--------- 1 file changed, 19 insertions(+), 9 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 5a14b73cf3a..4627a51d1d6 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -96,10 +96,10 @@ int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap) } EXPORT_SYMBOL_GPL(pci_find_next_capability); -static int __pci_bus_find_cap(struct pci_bus *bus, unsigned int devfn, u8 hdr_type, int cap) +static int __pci_bus_find_cap_start(struct pci_bus *bus, + unsigned int devfn, u8 hdr_type) { u16 status; - u8 pos; pci_bus_read_config_word(bus, devfn, PCI_STATUS, &status); if (!(status & PCI_STATUS_CAP_LIST)) @@ -108,15 +108,14 @@ static int __pci_bus_find_cap(struct pci_bus *bus, unsigned int devfn, u8 hdr_ty switch (hdr_type) { case PCI_HEADER_TYPE_NORMAL: case PCI_HEADER_TYPE_BRIDGE: - pos = PCI_CAPABILITY_LIST; - break; + return PCI_CAPABILITY_LIST; case PCI_HEADER_TYPE_CARDBUS: - pos = PCI_CB_CAPABILITY_LIST; - break; + return PCI_CB_CAPABILITY_LIST; default: return 0; } - return __pci_find_next_cap(bus, devfn, pos, cap); + + return 0; } /** @@ -140,7 +139,13 @@ static int __pci_bus_find_cap(struct pci_bus *bus, unsigned int devfn, u8 hdr_ty */ int pci_find_capability(struct pci_dev *dev, int cap) { - return __pci_bus_find_cap(dev->bus, dev->devfn, dev->hdr_type, cap); + int pos; + + pos = __pci_bus_find_cap_start(dev->bus, dev->devfn, dev->hdr_type); + if (pos) + pos = __pci_find_next_cap(dev->bus, dev->devfn, pos, cap); + + return pos; } /** @@ -158,11 +163,16 @@ int pci_find_capability(struct pci_dev *dev, int cap) */ int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap) { + int pos; u8 hdr_type; pci_bus_read_config_byte(bus, devfn, PCI_HEADER_TYPE, &hdr_type); - return __pci_bus_find_cap(bus, devfn, hdr_type & 0x7f, cap); + pos = __pci_bus_find_cap_start(bus, devfn, hdr_type & 0x7f); + if (pos) + pos = __pci_find_next_cap(bus, devfn, pos, cap); + + return pos; } /** -- cgit v1.2.3 From 687d5fe3dc33794efb500f42164a0588e2647914 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 22 Nov 2006 18:26:18 +1100 Subject: PCI: Add pci_find_ht_capability() for finding Hypertransport capabilities There are already several places in the kernel that want to search a PCI device for a given Hypertransport capability. Although this is possible using pci_find_capability() etc., it makes sense to encapsulate that logic in a helper - pci_find_ht_capability(). To cater for searching exhaustively for a capability, we also provide pci_find_next_ht_capability(). We also need to cater for the fact that the HT capability fields may be either 3 or 5 bits wide. pci_find_ht_capability() deals with this for you, but callers using the #defines directly must handle that themselves. Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci.c | 84 +++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 81 insertions(+), 3 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 4627a51d1d6..6bfb942428e 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -68,12 +68,14 @@ pci_max_busnr(void) #endif /* 0 */ -static int __pci_find_next_cap(struct pci_bus *bus, unsigned int devfn, u8 pos, int cap) +#define PCI_FIND_CAP_TTL 48 + +static int __pci_find_next_cap_ttl(struct pci_bus *bus, unsigned int devfn, + u8 pos, int cap, int *ttl) { u8 id; - int ttl = 48; - while (ttl--) { + while ((*ttl)--) { pci_bus_read_config_byte(bus, devfn, pos, &pos); if (pos < 0x40) break; @@ -89,6 +91,14 @@ static int __pci_find_next_cap(struct pci_bus *bus, unsigned int devfn, u8 pos, return 0; } +static int __pci_find_next_cap(struct pci_bus *bus, unsigned int devfn, + u8 pos, int cap) +{ + int ttl = PCI_FIND_CAP_TTL; + + return __pci_find_next_cap_ttl(bus, devfn, pos, cap, &ttl); +} + int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap) { return __pci_find_next_cap(dev->bus, dev->devfn, @@ -224,6 +234,74 @@ int pci_find_ext_capability(struct pci_dev *dev, int cap) } EXPORT_SYMBOL_GPL(pci_find_ext_capability); +static int __pci_find_next_ht_cap(struct pci_dev *dev, int pos, int ht_cap) +{ + int rc, ttl = PCI_FIND_CAP_TTL; + u8 cap, mask; + + if (ht_cap == HT_CAPTYPE_SLAVE || ht_cap == HT_CAPTYPE_HOST) + mask = HT_3BIT_CAP_MASK; + else + mask = HT_5BIT_CAP_MASK; + + pos = __pci_find_next_cap_ttl(dev->bus, dev->devfn, pos, + PCI_CAP_ID_HT, &ttl); + while (pos) { + rc = pci_read_config_byte(dev, pos + 3, &cap); + if (rc != PCIBIOS_SUCCESSFUL) + return 0; + + if ((cap & mask) == ht_cap) + return pos; + + pos = __pci_find_next_cap_ttl(dev->bus, dev->devfn, pos, + PCI_CAP_ID_HT, &ttl); + } + + return 0; +} +/** + * pci_find_next_ht_capability - query a device's Hypertransport capabilities + * @dev: PCI device to query + * @pos: Position from which to continue searching + * @ht_cap: Hypertransport capability code + * + * To be used in conjunction with pci_find_ht_capability() to search for + * all capabilities matching @ht_cap. @pos should always be a value returned + * from pci_find_ht_capability(). + * + * NB. To be 100% safe against broken PCI devices, the caller should take + * steps to avoid an infinite loop. + */ +int pci_find_next_ht_capability(struct pci_dev *dev, int pos, int ht_cap) +{ + return __pci_find_next_ht_cap(dev, pos + PCI_CAP_LIST_NEXT, ht_cap); +} +EXPORT_SYMBOL_GPL(pci_find_next_ht_capability); + +/** + * pci_find_ht_capability - query a device's Hypertransport capabilities + * @dev: PCI device to query + * @ht_cap: Hypertransport capability code + * + * Tell if a device supports a given Hypertransport capability. + * Returns an address within the device's PCI configuration space + * or 0 in case the device does not support the request capability. + * The address points to the PCI capability, of type PCI_CAP_ID_HT, + * which has a Hypertransport capability matching @ht_cap. + */ +int pci_find_ht_capability(struct pci_dev *dev, int ht_cap) +{ + int pos; + + pos = __pci_bus_find_cap_start(dev->bus, dev->devfn, dev->hdr_type); + if (pos) + pos = __pci_find_next_ht_cap(dev, pos, ht_cap); + + return pos; +} +EXPORT_SYMBOL_GPL(pci_find_ht_capability); + /** * pci_find_parent_resource - return resource region of parent bus of given region * @dev: PCI device structure contains resources to be searched -- cgit v1.2.3 From 120a50df4536da69d2e85633a60bc40a85088dd1 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 22 Nov 2006 18:26:19 +1100 Subject: PCI: Use pci_find_ht_capability() in drivers/pci/htirq.c Use pci_find_ht_capability() in drivers/pci/htirq.c Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- drivers/pci/htirq.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c index 0a8d1cce9fa..279c940a003 100644 --- a/drivers/pci/htirq.c +++ b/drivers/pci/htirq.c @@ -99,14 +99,7 @@ int __ht_create_irq(struct pci_dev *dev, int idx, ht_irq_update_t *update) int pos; int irq; - pos = pci_find_capability(dev, PCI_CAP_ID_HT); - while (pos) { - u8 subtype; - pci_read_config_byte(dev, pos + 3, &subtype); - if (subtype == HT_CAPTYPE_IRQ) - break; - pos = pci_find_next_capability(dev, pos, PCI_CAP_ID_HT); - } + pos = pci_find_ht_capability(dev, HT_CAPTYPE_IRQ); if (!pos) return -EINVAL; -- cgit v1.2.3 From 7a380507c48f7894bae7d367375313df9d51b2e5 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Wed, 22 Nov 2006 18:26:21 +1100 Subject: PCI: Use pci_find_ht_capability() in drivers/pci/quirks.c Use pci_find_ht_capability() in drivers/pci/quirks.c. I'm pretty sure the logic is unchanged here, but someone please eye-ball it for me. I've changed the message to be a little shorter, it's now: PCI: Found (enabled|disabled) HT MSI mapping on xxxx:xx:xx.x Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 757186390d8..cf3e7c0ded3 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1644,19 +1644,23 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_ * return 1 if a HT MSI capability is found and enabled */ static int __devinit msi_ht_cap_enabled(struct pci_dev *dev) { - u8 pos; - int ttl; - for (pos = pci_find_capability(dev, PCI_CAP_ID_HT), ttl = 48; - pos && ttl; - pos = pci_find_next_capability(dev, pos, PCI_CAP_ID_HT), ttl--) { - u32 cap_hdr; - /* MSI mapping section according to Hypertransport spec */ - if (pci_read_config_dword(dev, pos, &cap_hdr) == 0 - && (cap_hdr & 0xf8000000) == 0xa8000000 /* MSI mapping */) { - printk(KERN_INFO "PCI: Found HT MSI mapping on %s with capability %s\n", - pci_name(dev), cap_hdr & 0x10000 ? "enabled" : "disabled"); - return (cap_hdr & 0x10000) != 0; /* MSI mapping cap enabled */ + int pos, ttl = 48; + + pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); + while (pos && ttl--) { + u8 flags; + + if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, + &flags) == 0) + { + printk(KERN_INFO "PCI: Found %s HT MSI Mapping on %s\n", + flags & HT_MSI_FLAGS_ENABLE ? + "enabled" : "disabled", pci_name(dev)); + return (flags & HT_MSI_FLAGS_ENABLE) != 0; } + + pos = pci_find_next_ht_capability(dev, pos, + HT_CAPTYPE_MSI_MAPPING); } return 0; } -- cgit v1.2.3 From 1597cacbe39802d86656d1f2e6329895bd2ef531 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Mon, 4 Dec 2006 15:14:45 -0800 Subject: PCI: Fix multiple problems with VIA hardware This patch is designed to fix: - Disk eating corruptor on KT7 after resume from RAM - VIA IRQ handling - VIA fixups for bus lockups after resume from RAM The core of this is to add a table of resume fixups run at resume time. We need to do this for a variety of boards and features, but particularly we need to do this to get various critical VIA fixups done on resume. The second part of the problem is to handle VIA IRQ number rules which are a bit odd and need special handling for PIC interrupts. Various patches broke various boxes and while this one may not be perfect (hopefully it is) it ensures the workaround is applied to the right devices only. From: Jean Delvare Now that PCI quirks are replayed on software resume, we can safely re-enable the Asus SMBus unhiding quirk even when software suspend support is enabled. [akpm@osdl.org: fix const warning] Signed-off-by: Alan Cox Cc: Jean Delvare Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-driver.c | 2 + drivers/pci/quirks.c | 167 +++++++++++++++++++++++++++++++---------------- drivers/pci/search.c | 3 +- 3 files changed, 112 insertions(+), 60 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index de5b9011d03..b8d2385e29b 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -353,6 +353,8 @@ static int pci_device_resume_early(struct device * dev) struct pci_dev * pci_dev = to_pci_dev(dev); struct pci_driver * drv = pci_dev->driver; + pci_fixup_device(pci_fixup_resume, pci_dev); + if (drv && drv->resume_early) error = drv->resume_early(pci_dev); return error; diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index cf3e7c0ded3..30c41fc1c99 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -36,7 +36,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRID /* Deal with broken BIOS'es that neglect to enable passive release, which can cause problems in combination with the 82441FX/PPro MTRRs */ -static void __devinit quirk_passive_release(struct pci_dev *dev) +static void quirk_passive_release(struct pci_dev *dev) { struct pci_dev *d = NULL; unsigned char dlc; @@ -53,6 +53,7 @@ static void __devinit quirk_passive_release(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release ); /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround but VIA don't answer queries. If you happen to have good contacts at VIA @@ -134,7 +135,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quir * Updated based on further information from the site and also on * information provided by VIA */ -static void __devinit quirk_vialatency(struct pci_dev *dev) +static void quirk_vialatency(struct pci_dev *dev) { struct pci_dev *p; u8 rev; @@ -185,6 +186,10 @@ exit: DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency ); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency ); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency ); +/* Must restore this on a resume from RAM */ +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency ); /* * VIA Apollo VP3 needs ETBF on BT848/878 @@ -532,7 +537,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235 * TODO: When we have device-specific interrupt routers, * this code will go away from quirks. */ -static void __devinit quirk_via_ioapic(struct pci_dev *dev) +static void quirk_via_ioapic(struct pci_dev *dev) { u8 tmp; @@ -548,6 +553,7 @@ static void __devinit quirk_via_ioapic(struct pci_dev *dev) pci_write_config_byte (dev, 0x58, tmp); } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic ); /* * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit. @@ -555,7 +561,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_i * Set this bit to get rid of cycle wastage. * Otherwise uncritical. */ -static void __devinit quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev) +static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev) { u8 misc_control2; #define BYPASS_APIC_DEASSERT 8 @@ -567,6 +573,7 @@ static void __devinit quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); /* * The AMD io apic can hang the box when an apic irq is masked. @@ -600,7 +607,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw ); #define AMD8131_revB0 0x11 #define AMD8131_MISC 0x40 #define AMD8131_NIOAMODE_BIT 0 -static void __init quirk_amd_8131_ioapic(struct pci_dev *dev) +static void quirk_amd_8131_ioapic(struct pci_dev *dev) { unsigned char revid, tmp; @@ -616,6 +623,7 @@ static void __init quirk_amd_8131_ioapic(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic); #endif /* CONFIG_X86_IO_APIC */ @@ -641,65 +649,84 @@ static void __devinit quirk_via_acpi(struct pci_dev *d) DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi ); -/* - * Via 686A/B: The PCI_INTERRUPT_LINE register for the on-chip - * devices, USB0/1, AC97, MC97, and ACPI, has an unusual feature: - * when written, it makes an internal connection to the PIC. - * For these devices, this register is defined to be 4 bits wide. - * Normally this is fine. However for IO-APIC motherboards, or - * non-x86 architectures (yes Via exists on PPC among other places), - * we must mask the PCI_INTERRUPT_LINE value versus 0xf to get - * interrupts delivered properly. - * - * Some of the on-chip devices are actually '586 devices' so they are - * listed here. - */ - -static int via_irq_fixup_needed = -1; /* - * As some VIA hardware is available in PCI-card form, we need to restrict - * this quirk to VIA PCI hardware built onto VIA-based motherboards only. - * We try to locate a VIA southbridge before deciding whether the quirk - * should be applied. + * VIA bridges which have VLink */ -static const struct pci_device_id via_irq_fixup_tbl[] = { - { - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_ANY_ID, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .class = PCI_CLASS_BRIDGE_ISA << 8, - .class_mask = 0xffff00, - }, + +static const struct pci_device_id via_vlink_fixup_tbl[] = { + /* Internal devices need IRQ line routing, pre VLink */ + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686), 0 }, + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8231), 17 }, + /* Devices with VLink */ + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_0), 17}, + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233A), 17 }, + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233C_0), 17 }, + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8235), 16 }, + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237), 15 }, + { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237A), 15 }, { 0, }, }; -static void quirk_via_irq(struct pci_dev *dev) +/** + * quirk_via_vlink - VIA VLink IRQ number update + * @dev: PCI device + * + * If the device we are dealing with is on a PIC IRQ we need to + * ensure that the IRQ line register which usually is not relevant + * for PCI cards, is actually written so that interrupts get sent + * to the right place + */ + +static void quirk_via_vlink(struct pci_dev *dev) { + const struct pci_device_id *via_vlink_fixup; + static int dev_lo = -1, dev_hi = 18; u8 irq, new_irq; - if (via_irq_fixup_needed == -1) - via_irq_fixup_needed = pci_dev_present(via_irq_fixup_tbl); + /* Check if we have VLink and cache the result */ - if (!via_irq_fixup_needed) + /* Checked already - no */ + if (dev_lo == -2) return; + /* Not checked - see what bridge we have and find the device + ranges */ + + if (dev_lo == -1) { + via_vlink_fixup = pci_find_present(via_vlink_fixup_tbl); + if (via_vlink_fixup == NULL) { + dev_lo = -2; + return; + } + dev_lo = via_vlink_fixup->driver_data; + /* 82C686 is special - 0/0 */ + if (dev_lo == 0) + dev_hi = 0; + } new_irq = dev->irq; /* Don't quirk interrupts outside the legacy IRQ range */ if (!new_irq || new_irq > 15) return; + /* Internal device ? */ + if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > dev_hi || + PCI_SLOT(dev->devfn) < dev_lo) + return; + + /* This is an internal VLink device on a PIC interrupt. The BIOS + ought to have set this but may not have, so we redo it */ + pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq); if (new_irq != irq) { - printk(KERN_INFO "PCI: VIA IRQ fixup for %s, from %d to %d\n", + printk(KERN_INFO "PCI: VIA VLink IRQ fixup for %s, from %d to %d\n", pci_name(dev), irq, new_irq); udelay(15); /* unknown if delay really needed */ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq); } } -DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_irq); +DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink); /* * VIA VT82C598 has its device ID settable and many BIOSes @@ -720,13 +747,14 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt * do this even if the Linux CardBus driver is not loaded, because * the Linux i82365 driver does not (and should not) handle CardBus. */ -static void __devinit quirk_cardbus_legacy(struct pci_dev *dev) +static void quirk_cardbus_legacy(struct pci_dev *dev) { if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class) return; pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0); } DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy); +DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy); /* * Following the PCI ordering rules is optional on the AMD762. I'm not @@ -735,7 +763,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy); * To be fair to AMD, it follows the spec by default, its BIOS people * who turn it off! */ -static void __devinit quirk_amd_ordering(struct pci_dev *dev) +static void quirk_amd_ordering(struct pci_dev *dev) { u32 pcic; pci_read_config_dword(dev, 0x4C, &pcic); @@ -749,6 +777,7 @@ static void __devinit quirk_amd_ordering(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering ); /* * DreamWorks provided workaround for Dunord I-3000 problem @@ -784,7 +813,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge * datasheets found at http://www.national.com/ds/GX for info on what * these bits do. */ -static void __init quirk_mediagx_master(struct pci_dev *dev) +static void quirk_mediagx_master(struct pci_dev *dev) { u8 reg; pci_read_config_byte(dev, 0x41, ®); @@ -795,13 +824,14 @@ static void __init quirk_mediagx_master(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master ); /* * Ensure C0 rev restreaming is off. This is normally done by * the BIOS but in the odd case it is not the results are corruption * hence the presence of a Linux check */ -static void __init quirk_disable_pxb(struct pci_dev *pdev) +static void quirk_disable_pxb(struct pci_dev *pdev) { u16 config; u8 rev; @@ -817,6 +847,7 @@ static void __init quirk_disable_pxb(struct pci_dev *pdev) } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb ); /* @@ -874,7 +905,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_e * runs everywhere at present we suppress the printk output in most * irrelevant cases. */ -static void __init k8t_sound_hostbridge(struct pci_dev *dev) +static void k8t_sound_hostbridge(struct pci_dev *dev) { unsigned char val; @@ -893,8 +924,8 @@ static void __init k8t_sound_hostbridge(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge); -#ifndef CONFIG_ACPI_SLEEP /* * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge * is not activated. The myth is that Asus said that they do not want the @@ -906,10 +937,6 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_ho * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it * becomes necessary to do this tweak in two steps -- I've chosen the Host * bridge as trigger. - * - * Actually, leaving it unhidden and not redoing the quirk over suspend2ram - * will cause thermal management to break down, and causing machine to - * overheat. */ static int __initdata asus_hides_smbus; @@ -1019,7 +1046,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, as DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge ); -static void __init asus_hides_smbus_lpc(struct pci_dev *dev) +static void asus_hides_smbus_lpc(struct pci_dev *dev) { u16 val; @@ -1042,8 +1069,14 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asu DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc ); -static void __init asus_hides_smbus_lpc_ich6(struct pci_dev *dev) +static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev) { u32 val, rcba; void __iomem *base; @@ -1059,13 +1092,12 @@ static void __init asus_hides_smbus_lpc_ich6(struct pci_dev *dev) printk(KERN_INFO "PCI: Enabled ICH6/i801 SMBus device\n"); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 ); - -#endif +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6 ); /* * SiS 96x south bridge: BIOS typically hides SMBus device... */ -static void __init quirk_sis_96x_smbus(struct pci_dev *dev) +static void quirk_sis_96x_smbus(struct pci_dev *dev) { u8 val = 0; printk(KERN_INFO "Enabling SiS 96x SMBus.\n"); @@ -1086,7 +1118,7 @@ static int __devinitdata sis_96x_compatible = 0; #define SIS_DETECT_REGISTER 0x40 -static void __init quirk_sis_503(struct pci_dev *dev) +static void quirk_sis_503(struct pci_dev *dev) { u8 reg; u16 devid; @@ -1122,13 +1154,14 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_651, quirk_sis_96x_ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_735, quirk_sis_96x_compatible ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 ); /* * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller * and MC97 modem controller are disabled when a second PCI soundcard is * present. This patch, tweaking the VT8237 ISA bridge, enables them. * -- bjd */ -static void __init asus_hides_ac97_lpc(struct pci_dev *dev) +static void asus_hides_ac97_lpc(struct pci_dev *dev) { u8 val; int asus_hides_ac97 = 0; @@ -1159,6 +1192,14 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc ); + + +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus ); + #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE) /* @@ -1167,7 +1208,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_ * the PCI scanning. */ -static void __devinit quirk_jmicron_dualfn(struct pci_dev *pdev) +static void quirk_jmicron_dualfn(struct pci_dev *pdev) { u32 conf; u8 hdr; @@ -1205,6 +1246,7 @@ static void __devinit quirk_jmicron_dualfn(struct pci_dev *pdev) } DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, quirk_jmicron_dualfn); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, quirk_jmicron_dualfn); #endif @@ -1532,6 +1574,8 @@ extern struct pci_fixup __start_pci_fixups_final[]; extern struct pci_fixup __end_pci_fixups_final[]; extern struct pci_fixup __start_pci_fixups_enable[]; extern struct pci_fixup __end_pci_fixups_enable[]; +extern struct pci_fixup __start_pci_fixups_resume[]; +extern struct pci_fixup __end_pci_fixups_resume[]; void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) @@ -1559,6 +1603,11 @@ void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) end = __end_pci_fixups_enable; break; + case pci_fixup_resume: + start = __start_pci_fixups_resume; + end = __end_pci_fixups_resume; + break; + default: /* stupid compiler warning, you would think with an enum... */ return; @@ -1596,7 +1645,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io); * Force it to be linked by setting the corresponding control bit in the * config space. */ -static void __devinit quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev) +static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev) { uint8_t b; if (pci_read_config_byte(dev, 0xf41, &b) == 0) { @@ -1610,6 +1659,8 @@ static void __devinit quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev) } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, quirk_nvidia_ck804_pcie_aer_ext_cap); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, + quirk_nvidia_ck804_pcie_aer_ext_cap); #ifdef CONFIG_PCI_MSI /* To disable MSI globally */ diff --git a/drivers/pci/search.c b/drivers/pci/search.c index 2bbafe0f79b..45f2b20ef51 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -416,7 +416,7 @@ exit: const struct pci_device_id *pci_find_present(const struct pci_device_id *ids) { struct pci_dev *dev; - struct pci_device_id * found = NULL; + const struct pci_device_id *found = NULL; WARN_ON(in_interrupt()); down_read(&pci_bus_sem); @@ -442,7 +442,6 @@ const struct pci_device_id *pci_find_present(const struct pci_device_id *ids) * find devices that are usually built into a system, or for a general hint as * to if another device happens to be present at this specific moment in time. */ - int pci_dev_present(const struct pci_device_id *ids) { return pci_find_present(ids) == NULL ? 0 : 1; -- cgit v1.2.3 From 9ac0ce8596b17093739d42721cc8a616cedf734b Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Mon, 4 Dec 2006 15:14:48 -0800 Subject: PCI: Be a bit defensive in quirk_nvidia_ck804() so we don't risk dereferencing a NULL pdev. pci_get_slot() may return NULL if nothing was found. quirk_nvidia_ck804() does not check the value returned from pci_get_slot(), so it may end up causing a NULL pointer deref. Signed-off-by: Jesper Juhl Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 30c41fc1c99..8a2db01b903 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1743,6 +1743,8 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) * a single one having MSI is enough to be sure that MSI are supported. */ pdev = pci_get_slot(dev->bus, 0); + if (!pdev) + return; if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) { printk(KERN_WARNING "PCI: MSI quirk detected. " "MSI disabled on chipset %s.\n", -- cgit v1.2.3 From fb0f2b40faff41f03acaa2ee6e6231fc96ca497c Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Tue, 19 Dec 2006 13:12:08 -0800 Subject: PCI legacy resource fix Since commit 368c73d4f689dae0807d0a2aa74c61fd2b9b075f the kernel will try to update the non-writeable BAR registers 0..3 of PIIX4 IDE adapters if pci_assign_unassigned_resources() is used to do full resource assignment of the bus. This fails because in the PIIX4 these BAR registers have implicitly assumed values and read back as zero; it used to work because the kernel used to just write zero to that register the read back value did match what was written. The fix is a new resource flag IORESOURCE_PCI_FIXED used to mark a resource as non-movable. This will also be useful to keep other import system resources from being moved around - for example system consoles on PCI busses. [akpm@osdl.org: cleanup] Signed-off-by: Ralf Baechle Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/pci/probe.c | 11 +++++++---- drivers/pci/setup-res.c | 19 +++++++++++++++++-- 2 files changed, 24 insertions(+), 6 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 6a3c1e72890..1ae9c3f50ff 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -649,6 +649,9 @@ static void pci_read_irq(struct pci_dev *dev) * Returns 0 on success and -1 if unknown type of device (not normal, bridge * or CardBus). */ + +#define LEGACY_IO_RESOURCE (IORESOURCE_IO | IORESOURCE_PCI_FIXED) + static int pci_setup_device(struct pci_dev * dev) { u32 class; @@ -692,18 +695,18 @@ static int pci_setup_device(struct pci_dev * dev) if ((progif & 1) == 0) { dev->resource[0].start = 0x1F0; dev->resource[0].end = 0x1F7; - dev->resource[0].flags = IORESOURCE_IO; + dev->resource[0].flags = LEGACY_IO_RESOURCE; dev->resource[1].start = 0x3F6; dev->resource[1].end = 0x3F6; - dev->resource[1].flags = IORESOURCE_IO; + dev->resource[1].flags = LEGACY_IO_RESOURCE; } if ((progif & 4) == 0) { dev->resource[2].start = 0x170; dev->resource[2].end = 0x177; - dev->resource[2].flags = IORESOURCE_IO; + dev->resource[2].flags = LEGACY_IO_RESOURCE; dev->resource[3].start = 0x376; dev->resource[3].end = 0x376; - dev->resource[3].flags = IORESOURCE_IO; + dev->resource[3].flags = LEGACY_IO_RESOURCE; } } break; diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index ab78e4bbdd8..cb4ced3560e 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -33,11 +33,22 @@ pci_update_resource(struct pci_dev *dev, struct resource *res, int resno) u32 new, check, mask; int reg; - /* Ignore resources for unimplemented BARs and unused resource slots - for 64 bit BARs. */ + /* + * Ignore resources for unimplemented BARs and unused resource slots + * for 64 bit BARs. + */ if (!res->flags) return; + /* + * Ignore non-moveable resources. This might be legacy resources for + * which no functional BAR register exists or another important + * system resource we should better not move around in system address + * space. + */ + if (res->flags & IORESOURCE_PCI_FIXED) + return; + pcibios_resource_to_bus(dev, ®ion, res); pr_debug(" got res [%llx:%llx] bus [%lx:%lx] flags %lx for " @@ -212,6 +223,10 @@ pdev_sort_resources(struct pci_dev *dev, struct resource_list *head) resource_size_t r_align; r = &dev->resource[i]; + + if (r->flags & IORESOURCE_PCI_FIXED) + continue; + r_align = r->end - r->start; if (!(r->flags) || r->parent) -- cgit v1.2.3 From ab17443a3df35abe4b7529e83511a591aa7384f3 Mon Sep 17 00:00:00 2001 From: Conke Hu Date: Tue, 19 Dec 2006 13:11:37 -0800 Subject: PCI: ATI sb600 sata quirk Acked-by: Jeff Garzik Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 8a2db01b903..8f0322d6f3b 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -850,6 +850,23 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb ); +static void __devinit quirk_sb600_sata(struct pci_dev *pdev) +{ + /* set sb600 sata to ahci mode */ + if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) { + u8 tmp; + + pci_read_config_byte(pdev, 0x40, &tmp); + pci_write_config_byte(pdev, 0x40, tmp|1); + pci_write_config_byte(pdev, 0x9, 1); + pci_write_config_byte(pdev, 0xa, 6); + pci_write_config_byte(pdev, 0x40, tmp); + + pdev->class = 0x010601; + } +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_sb600_sata); + /* * Serverworks CSB5 IDE does not fully support native mode */ -- cgit v1.2.3 From 0abe68ce24973a23fcc6cbce80343f68656de7b6 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Sat, 16 Dec 2006 15:25:34 -0800 Subject: shpchp: remove unnecessary struct php_ctlr The struct php_ctlr seems to be only for complicating codes. This patch removes struct php_ctlr and related codes. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/shpchp.h | 42 +------ drivers/pci/hotplug/shpchp_core.c | 45 +------- drivers/pci/hotplug/shpchp_ctrl.c | 12 +- drivers/pci/hotplug/shpchp_hpc.c | 223 +++++++++++--------------------------- 4 files changed, 73 insertions(+), 249 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h index 50757695844..f036485cd9e 100644 --- a/drivers/pci/hotplug/shpchp.h +++ b/drivers/pci/hotplug/shpchp.h @@ -83,7 +83,6 @@ struct event_info { struct controller { struct mutex crit_sect; /* critical section mutex */ struct mutex cmd_lock; /* command lock */ - struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */ int num_slots; /* Number of slots on ctlr */ int slot_num_inc; /* 1 or -1 */ struct pci_dev *pci_dev; @@ -102,6 +101,8 @@ struct controller { u32 cap_offset; unsigned long mmio_base; unsigned long mmio_size; + void __iomem *creg; + struct timer_list poll_timer; }; @@ -176,10 +177,10 @@ extern int __must_check shpchp_create_ctrl_files(struct controller *ctrl); extern int shpchp_sysfs_enable_slot(struct slot *slot); extern int shpchp_sysfs_disable_slot(struct slot *slot); -extern u8 shpchp_handle_attention_button(u8 hp_slot, void *inst_id); -extern u8 shpchp_handle_switch_change(u8 hp_slot, void *inst_id); -extern u8 shpchp_handle_presence_change(u8 hp_slot, void *inst_id); -extern u8 shpchp_handle_power_fault(u8 hp_slot, void *inst_id); +extern u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl); +extern u8 shpchp_handle_switch_change(u8 hp_slot, struct controller *ctrl); +extern u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl); +extern u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl); /* pci functions */ extern int shpchp_save_config(struct controller *ctrl, int busnumber, int num_ctlr_slots, int first_device_num); @@ -262,24 +263,6 @@ enum ctrl_offsets { SLOT11 = offsetof(struct ctrl_reg, slot11), SLOT12 = offsetof(struct ctrl_reg, slot12), }; -typedef u8(*php_intr_callback_t) (u8 hp_slot, void *instance_id); -struct php_ctlr_state_s { - struct php_ctlr_state_s *pnext; - struct pci_dev *pci_dev; - unsigned int irq; - unsigned long flags; /* spinlock's */ - u32 slot_device_offset; - u32 num_slots; - struct timer_list int_poll_timer; /* Added for poll event */ - php_intr_callback_t attention_button_callback; - php_intr_callback_t switch_change_callback; - php_intr_callback_t presence_change_callback; - php_intr_callback_t power_fault_callback; - void *callback_instance_id; - void __iomem *creg; /* Ptr to controller register space */ -}; -/* Inline functions */ - /* Inline functions to check the sanity of a pointer that is passed to us */ static inline int slot_paranoia_check (struct slot *slot, const char *function) @@ -400,21 +383,8 @@ static inline void amd_pogo_errata_restore_misc_reg(struct slot *p_slot) pci_write_config_dword(p_slot->ctrl->pci_dev, PCIX_MISCII_OFFSET, pcix_misc2_temp); } -enum php_ctlr_type { - PCI, - ISA, - ACPI -}; - int shpc_init( struct controller *ctrl, struct pci_dev *pdev); -int shpc_get_ctlr_slot_config( struct controller *ctrl, - int *num_ctlr_slots, - int *first_device_num, - int *physical_slot_num, - int *updown, - int *flags); - struct hpc_ops { int (*power_on_slot ) (struct slot *slot); int (*slot_enable ) (struct slot *slot); diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c index 4eac85b3d90..68471dd49f7 100644 --- a/drivers/pci/hotplug/shpchp_core.c +++ b/drivers/pci/hotplug/shpchp_core.c @@ -211,36 +211,6 @@ void cleanup_slots(struct controller *ctrl) } } -static int get_ctlr_slot_config(struct controller *ctrl) -{ - int num_ctlr_slots; - int first_device_num; - int physical_slot_num; - int updown; - int rc; - int flags; - - rc = shpc_get_ctlr_slot_config(ctrl, &num_ctlr_slots, - &first_device_num, &physical_slot_num, - &updown, &flags); - if (rc) { - err("%s: get_ctlr_slot_config fail for b:d (%x:%x)\n", - __FUNCTION__, ctrl->bus, ctrl->device); - return -1; - } - - ctrl->num_slots = num_ctlr_slots; - ctrl->slot_device_offset = first_device_num; - ctrl->first_slot = physical_slot_num; - ctrl->slot_num_inc = updown; /* either -1 or 1 */ - - dbg("%s: num_slot(0x%x) 1st_dev(0x%x) psn(0x%x) updown(%d) for b:d " - "(%x:%x)\n", __FUNCTION__, num_ctlr_slots, first_device_num, - physical_slot_num, updown, ctrl->bus, ctrl->device); - - return 0; -} - /* * set_attention_status - Turns the Amber LED for a slot on, off or blink */ @@ -386,8 +356,6 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) int rc; struct controller *ctrl; struct slot *t_slot; - int first_device_num; /* first PCI device number */ - int num_ctlr_slots; /* number of slots implemented */ if (!is_shpc_capable(pdev)) return -ENODEV; @@ -416,17 +384,6 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) dbg("ctrl bus=0x%x, device=%x, function=%x, irq=%x\n", ctrl->bus, ctrl->device, ctrl->function, pdev->irq); - /* - * Save configuration headers for this and subordinate PCI buses - */ - rc = get_ctlr_slot_config(ctrl); - if (rc) { - err(msg_initialization_err, rc); - goto err_out_release_ctlr; - } - first_device_num = ctrl->slot_device_offset; - num_ctlr_slots = ctrl->num_slots; - ctrl->add_support = 1; /* Setup the slot information structures */ @@ -437,7 +394,7 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } /* Now hpc_functions (slot->hpc_ops->functions) are ready */ - t_slot = shpchp_find_slot(ctrl, first_device_num); + t_slot = shpchp_find_slot(ctrl, ctrl->slot_device_offset); /* Check for operation bus speed */ rc = t_slot->hpc_ops->get_cur_bus_speed(t_slot, &ctrl->speed); diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c index 158ac783609..39893c77d00 100644 --- a/drivers/pci/hotplug/shpchp_ctrl.c +++ b/drivers/pci/hotplug/shpchp_ctrl.c @@ -57,9 +57,8 @@ static int queue_interrupt_event(struct slot *p_slot, u32 event_type) return 0; } -u8 shpchp_handle_attention_button(u8 hp_slot, void *inst_id) +u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl) { - struct controller *ctrl = (struct controller *) inst_id; struct slot *p_slot; u32 event_type; @@ -81,9 +80,8 @@ u8 shpchp_handle_attention_button(u8 hp_slot, void *inst_id) } -u8 shpchp_handle_switch_change(u8 hp_slot, void *inst_id) +u8 shpchp_handle_switch_change(u8 hp_slot, struct controller *ctrl) { - struct controller *ctrl = (struct controller *) inst_id; struct slot *p_slot; u8 getstatus; u32 event_type; @@ -120,9 +118,8 @@ u8 shpchp_handle_switch_change(u8 hp_slot, void *inst_id) return 1; } -u8 shpchp_handle_presence_change(u8 hp_slot, void *inst_id) +u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl) { - struct controller *ctrl = (struct controller *) inst_id; struct slot *p_slot; u32 event_type; @@ -154,9 +151,8 @@ u8 shpchp_handle_presence_change(u8 hp_slot, void *inst_id) return 1; } -u8 shpchp_handle_power_fault(u8 hp_slot, void *inst_id) +u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl) { - struct controller *ctrl = (struct controller *) inst_id; struct slot *p_slot; u32 event_type; diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index 83a5226ba9e..b7bede4b7c2 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -212,44 +212,40 @@ #define SLOT_SERR_INT_MASK 0x3 DEFINE_DBG_BUFFER /* Debug string buffer for entire HPC defined here */ -static struct php_ctlr_state_s *php_ctlr_list_head; /* HPC state linked list */ -static int ctlr_seq_num = 0; /* Controller sequenc # */ -static spinlock_t list_lock; - static atomic_t shpchp_num_controllers = ATOMIC_INIT(0); static irqreturn_t shpc_isr(int irq, void *dev_id); -static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int sec); +static void start_int_poll_timer(struct controller *ctrl, int sec); static int hpc_check_cmd_status(struct controller *ctrl); static inline u8 shpc_readb(struct controller *ctrl, int reg) { - return readb(ctrl->hpc_ctlr_handle->creg + reg); + return readb(ctrl->creg + reg); } static inline void shpc_writeb(struct controller *ctrl, int reg, u8 val) { - writeb(val, ctrl->hpc_ctlr_handle->creg + reg); + writeb(val, ctrl->creg + reg); } static inline u16 shpc_readw(struct controller *ctrl, int reg) { - return readw(ctrl->hpc_ctlr_handle->creg + reg); + return readw(ctrl->creg + reg); } static inline void shpc_writew(struct controller *ctrl, int reg, u16 val) { - writew(val, ctrl->hpc_ctlr_handle->creg + reg); + writew(val, ctrl->creg + reg); } static inline u32 shpc_readl(struct controller *ctrl, int reg) { - return readl(ctrl->hpc_ctlr_handle->creg + reg); + return readl(ctrl->creg + reg); } static inline void shpc_writel(struct controller *ctrl, int reg, u32 val) { - writel(val, ctrl->hpc_ctlr_handle->creg + reg); + writel(val, ctrl->creg + reg); } static inline int shpc_indirect_read(struct controller *ctrl, int index, @@ -268,21 +264,20 @@ static inline int shpc_indirect_read(struct controller *ctrl, int index, /* * This is the interrupt polling timeout function. */ -static void int_poll_timeout(unsigned long lphp_ctlr) +static void int_poll_timeout(unsigned long data) { - struct php_ctlr_state_s *php_ctlr = - (struct php_ctlr_state_s *)lphp_ctlr; + struct controller *ctrl = (struct controller *)data; DBG_ENTER_ROUTINE /* Poll for interrupt events. regs == NULL => polling */ - shpc_isr(0, php_ctlr->callback_instance_id); + shpc_isr(0, ctrl); - init_timer(&php_ctlr->int_poll_timer); + init_timer(&ctrl->poll_timer); if (!shpchp_poll_time) shpchp_poll_time = 2; /* default polling interval is 2 sec */ - start_int_poll_timer(php_ctlr, shpchp_poll_time); + start_int_poll_timer(ctrl, shpchp_poll_time); DBG_LEAVE_ROUTINE } @@ -290,16 +285,16 @@ static void int_poll_timeout(unsigned long lphp_ctlr) /* * This function starts the interrupt polling timer. */ -static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int sec) +static void start_int_poll_timer(struct controller *ctrl, int sec) { /* Clamp to sane value */ if ((sec <= 0) || (sec > 60)) sec = 2; - php_ctlr->int_poll_timer.function = &int_poll_timeout; - php_ctlr->int_poll_timer.data = (unsigned long)php_ctlr; - php_ctlr->int_poll_timer.expires = jiffies + sec * HZ; - add_timer(&php_ctlr->int_poll_timer); + ctrl->poll_timer.function = &int_poll_timeout; + ctrl->poll_timer.data = (unsigned long)ctrl; + ctrl->poll_timer.expires = jiffies + sec * HZ; + add_timer(&ctrl->poll_timer); } static inline int is_ctrl_busy(struct controller *ctrl) @@ -666,33 +661,8 @@ static void hpc_set_green_led_blink(struct slot *slot) shpc_write_cmd(slot, slot->hp_slot, SET_PWR_BLINK); } -int shpc_get_ctlr_slot_config(struct controller *ctrl, - int *num_ctlr_slots, /* number of slots in this HPC */ - int *first_device_num, /* PCI dev num of the first slot in this SHPC */ - int *physical_slot_num, /* phy slot num of the first slot in this SHPC */ - int *updown, /* physical_slot_num increament: 1 or -1 */ - int *flags) -{ - u32 slot_config; - - DBG_ENTER_ROUTINE - - slot_config = shpc_readl(ctrl, SLOT_CONFIG); - *first_device_num = (slot_config & FIRST_DEV_NUM) >> 8; - *num_ctlr_slots = slot_config & SLOT_NUM; - *physical_slot_num = (slot_config & PSN) >> 16; - *updown = ((slot_config & UPDOWN) >> 29) ? 1 : -1; - - dbg("%s: physical_slot_num = %x\n", __FUNCTION__, *physical_slot_num); - - DBG_LEAVE_ROUTINE - return 0; -} - static void hpc_release_ctlr(struct controller *ctrl) { - struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle; - struct php_ctlr_state_s *p, *p_prev; int i; u32 slot_reg, serr_int; @@ -722,40 +692,15 @@ static void hpc_release_ctlr(struct controller *ctrl) serr_int &= ~SERR_INTR_RSVDZ_MASK; shpc_writel(ctrl, SERR_INTR_ENABLE, serr_int); - if (shpchp_poll_mode) { - del_timer(&php_ctlr->int_poll_timer); - } else { - if (php_ctlr->irq) { - free_irq(php_ctlr->irq, ctrl); - php_ctlr->irq = 0; - pci_disable_msi(php_ctlr->pci_dev); - } - } - - if (php_ctlr->pci_dev) { - iounmap(php_ctlr->creg); - release_mem_region(ctrl->mmio_base, ctrl->mmio_size); - php_ctlr->pci_dev = NULL; - } - - spin_lock(&list_lock); - p = php_ctlr_list_head; - p_prev = NULL; - while (p) { - if (p == php_ctlr) { - if (p_prev) - p_prev->pnext = p->pnext; - else - php_ctlr_list_head = p->pnext; - break; - } else { - p_prev = p; - p = p->pnext; - } + if (shpchp_poll_mode) + del_timer(&ctrl->poll_timer); + else { + free_irq(ctrl->pci_dev->irq, ctrl); + pci_disable_msi(ctrl->pci_dev); } - spin_unlock(&list_lock); - kfree(php_ctlr); + iounmap(ctrl->creg); + release_mem_region(ctrl->mmio_base, ctrl->mmio_size); /* * If this is the last controller to be released, destroy the @@ -764,8 +709,7 @@ static void hpc_release_ctlr(struct controller *ctrl) if (atomic_dec_and_test(&shpchp_num_controllers)) destroy_workqueue(shpchp_wq); -DBG_LEAVE_ROUTINE - + DBG_LEAVE_ROUTINE } static int hpc_power_on_slot(struct slot * slot) @@ -891,7 +835,6 @@ static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value) static irqreturn_t shpc_isr(int irq, void *dev_id) { struct controller *ctrl = (struct controller *)dev_id; - struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle; u32 serr_int, slot_reg, intr_loc, intr_loc2; int hp_slot; @@ -942,20 +885,16 @@ static irqreturn_t shpc_isr(int irq, void *dev_id) __FUNCTION__, hp_slot, slot_reg); if (slot_reg & MRL_CHANGE_DETECTED) - php_ctlr->switch_change_callback( - hp_slot, php_ctlr->callback_instance_id); + shpchp_handle_switch_change(hp_slot, ctrl); if (slot_reg & BUTTON_PRESS_DETECTED) - php_ctlr->attention_button_callback( - hp_slot, php_ctlr->callback_instance_id); + shpchp_handle_attention_button(hp_slot, ctrl); if (slot_reg & PRSNT_CHANGE_DETECTED) - php_ctlr->presence_change_callback( - hp_slot , php_ctlr->callback_instance_id); + shpchp_handle_presence_change(hp_slot, ctrl); if (slot_reg & (ISO_PFAULT_DETECTED | CON_PFAULT_DETECTED)) - php_ctlr->power_fault_callback( - hp_slot, php_ctlr->callback_instance_id); + shpchp_handle_power_fault(hp_slot, ctrl); /* Clear all slot events */ slot_reg &= ~SLOT_REG_RSVDZ_MASK; @@ -1114,10 +1053,8 @@ static struct hpc_ops shpchp_hpc_ops = { .release_ctlr = hpc_release_ctlr, }; -int shpc_init(struct controller * ctrl, struct pci_dev * pdev) +int shpc_init(struct controller *ctrl, struct pci_dev *pdev) { - struct php_ctlr_state_s *php_ctlr, *p; - void *instance_id = ctrl; int rc = -1, num_slots = 0; u8 hp_slot; u32 shpc_base_offset; @@ -1128,16 +1065,6 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) ctrl->pci_dev = pdev; /* pci_dev of the P2P bridge */ - spin_lock_init(&list_lock); - php_ctlr = kzalloc(sizeof(*php_ctlr), GFP_KERNEL); - - if (!php_ctlr) { /* allocate controller state data */ - err("%s: HPC controller memory allocation error!\n", __FUNCTION__); - goto abort; - } - - php_ctlr->pci_dev = pdev; /* save pci_dev in context */ - if ((pdev->vendor == PCI_VENDOR_ID_AMD) || (pdev->device == PCI_DEVICE_ID_AMD_GOLAM_7450)) { /* amd shpc driver doesn't use Base Offset; assume 0 */ @@ -1147,20 +1074,20 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) ctrl->cap_offset = pci_find_capability(pdev, PCI_CAP_ID_SHPC); if (!ctrl->cap_offset) { err("%s : cap_offset == 0\n", __FUNCTION__); - goto abort_free_ctlr; + goto abort; } dbg("%s: cap_offset = %x\n", __FUNCTION__, ctrl->cap_offset); rc = shpc_indirect_read(ctrl, 0, &shpc_base_offset); if (rc) { err("%s: cannot read base_offset\n", __FUNCTION__); - goto abort_free_ctlr; + goto abort; } rc = shpc_indirect_read(ctrl, 3, &tempdword); if (rc) { err("%s: cannot read slot config\n", __FUNCTION__); - goto abort_free_ctlr; + goto abort; } num_slots = tempdword & SLOT_NUM; dbg("%s: num_slots (indirect) %x\n", __FUNCTION__, num_slots); @@ -1170,7 +1097,7 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) if (rc) { err("%s: cannot read creg (index = %d)\n", __FUNCTION__, i); - goto abort_free_ctlr; + goto abort; } dbg("%s: offset %d: value %x\n", __FUNCTION__,i, tempdword); @@ -1187,24 +1114,24 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) rc = pci_enable_device(pdev); if (rc) { err("%s: pci_enable_device failed\n", __FUNCTION__); - goto abort_free_ctlr; + goto abort; } if (!request_mem_region(ctrl->mmio_base, ctrl->mmio_size, MY_NAME)) { err("%s: cannot reserve MMIO region\n", __FUNCTION__); rc = -1; - goto abort_free_ctlr; + goto abort; } - php_ctlr->creg = ioremap(ctrl->mmio_base, ctrl->mmio_size); - if (!php_ctlr->creg) { + ctrl->creg = ioremap(ctrl->mmio_base, ctrl->mmio_size); + if (!ctrl->creg) { err("%s: cannot remap MMIO region %lx @ %lx\n", __FUNCTION__, ctrl->mmio_size, ctrl->mmio_base); release_mem_region(ctrl->mmio_base, ctrl->mmio_size); rc = -1; - goto abort_free_ctlr; + goto abort; } - dbg("%s: php_ctlr->creg %p\n", __FUNCTION__, php_ctlr->creg); + dbg("%s: ctrl->creg %p\n", __FUNCTION__, ctrl->creg); mutex_init(&ctrl->crit_sect); mutex_init(&ctrl->cmd_lock); @@ -1212,23 +1139,14 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) /* Setup wait queue */ init_waitqueue_head(&ctrl->queue); - /* Find the IRQ */ - php_ctlr->irq = pdev->irq; - php_ctlr->attention_button_callback = shpchp_handle_attention_button, - php_ctlr->switch_change_callback = shpchp_handle_switch_change; - php_ctlr->presence_change_callback = shpchp_handle_presence_change; - php_ctlr->power_fault_callback = shpchp_handle_power_fault; - php_ctlr->callback_instance_id = instance_id; - - ctrl->hpc_ctlr_handle = php_ctlr; ctrl->hpc_ops = &shpchp_hpc_ops; /* Return PCI Controller Info */ slot_config = shpc_readl(ctrl, SLOT_CONFIG); - php_ctlr->slot_device_offset = (slot_config & FIRST_DEV_NUM) >> 8; - php_ctlr->num_slots = slot_config & SLOT_NUM; - dbg("%s: slot_device_offset %x\n", __FUNCTION__, php_ctlr->slot_device_offset); - dbg("%s: num_slots %x\n", __FUNCTION__, php_ctlr->num_slots); + ctrl->slot_device_offset = (slot_config & FIRST_DEV_NUM) >> 8; + ctrl->num_slots = slot_config & SLOT_NUM; + ctrl->first_slot = (slot_config & PSN) >> 16; + ctrl->slot_num_inc = ((slot_config & UPDOWN) >> 29) ? 1 : -1; /* Mask Global Interrupt Mask & Command Complete Interrupt Mask */ tempdword = shpc_readl(ctrl, SERR_INTR_ENABLE); @@ -1243,7 +1161,7 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) /* Mask the MRL sensor SERR Mask of individual slot in * Slot SERR-INT Mask & clear all the existing event if any */ - for (hp_slot = 0; hp_slot < php_ctlr->num_slots; hp_slot++) { + for (hp_slot = 0; hp_slot < ctrl->num_slots; hp_slot++) { slot_reg = shpc_readl(ctrl, SLOT_REG(hp_slot)); dbg("%s: Default Logical Slot Register %d value %x\n", __FUNCTION__, hp_slot, slot_reg); @@ -1255,24 +1173,27 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) shpc_writel(ctrl, SLOT_REG(hp_slot), slot_reg); } - if (shpchp_poll_mode) {/* Install interrupt polling code */ - /* Install and start the interrupt polling timer */ - init_timer(&php_ctlr->int_poll_timer); - start_int_poll_timer( php_ctlr, 10 ); /* start with 10 second delay */ + if (shpchp_poll_mode) { + /* Install interrupt polling timer. Start with 10 sec delay */ + init_timer(&ctrl->poll_timer); + start_int_poll_timer(ctrl, 10); } else { /* Installs the interrupt handler */ rc = pci_enable_msi(pdev); if (rc) { info("Can't get msi for the hotplug controller\n"); info("Use INTx for the hotplug controller\n"); - } else - php_ctlr->irq = pdev->irq; + } - rc = request_irq(php_ctlr->irq, shpc_isr, IRQF_SHARED, MY_NAME, (void *) ctrl); - dbg("%s: request_irq %d for hpc%d (returns %d)\n", __FUNCTION__, php_ctlr->irq, ctlr_seq_num, rc); + rc = request_irq(ctrl->pci_dev->irq, shpc_isr, IRQF_SHARED, + MY_NAME, (void *)ctrl); + dbg("%s: request_irq %d for hpc%d (returns %d)\n", + __FUNCTION__, ctrl->pci_dev->irq, + atomic_read(&shpchp_num_controllers), rc); if (rc) { - err("Can't get irq %d for the hotplug controller\n", php_ctlr->irq); - goto abort_free_ctlr; + err("Can't get irq %d for the hotplug controller\n", + ctrl->pci_dev->irq); + goto abort_iounmap; } } dbg("%s: HPC at b:d:f:irq=0x%x:%x:%x:%x\n", __FUNCTION__, @@ -1280,24 +1201,6 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) PCI_FUNC(pdev->devfn), pdev->irq); get_hp_hw_control_from_firmware(pdev); - /* Add this HPC instance into the HPC list */ - spin_lock(&list_lock); - if (php_ctlr_list_head == 0) { - php_ctlr_list_head = php_ctlr; - p = php_ctlr_list_head; - p->pnext = NULL; - } else { - p = php_ctlr_list_head; - - while (p->pnext) - p = p->pnext; - - p->pnext = php_ctlr; - } - spin_unlock(&list_lock); - - ctlr_seq_num++; - /* * If this is the first controller to be initialized, * initialize the shpchpd work queue @@ -1306,14 +1209,14 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) shpchp_wq = create_singlethread_workqueue("shpchpd"); if (!shpchp_wq) { rc = -ENOMEM; - goto abort_free_ctlr; + goto abort_iounmap; } } /* * Unmask all event interrupts of all slots */ - for (hp_slot = 0; hp_slot < php_ctlr->num_slots; hp_slot++) { + for (hp_slot = 0; hp_slot < ctrl->num_slots; hp_slot++) { slot_reg = shpc_readl(ctrl, SLOT_REG(hp_slot)); dbg("%s: Default Logical Slot Register %d value %x\n", __FUNCTION__, hp_slot, slot_reg); @@ -1336,10 +1239,8 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev) return 0; /* We end up here for the many possible ways to fail this API. */ -abort_free_ctlr: - if (php_ctlr->creg) - iounmap(php_ctlr->creg); - kfree(php_ctlr); +abort_iounmap: + iounmap(ctrl->creg); abort: DBG_LEAVE_ROUTINE return rc; -- cgit v1.2.3 From 227b84c77f5fb3a3b01e5dee1a2928cafc5fd216 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Sat, 16 Dec 2006 15:25:42 -0800 Subject: shpchp: cleanup struct controller This patch removes unused/unnecessary members from struct controller. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/shpchp.h | 6 ------ drivers/pci/hotplug/shpchp_core.c | 26 +------------------------- 2 files changed, 1 insertion(+), 31 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h index f036485cd9e..e2171498247 100644 --- a/drivers/pci/hotplug/shpchp.h +++ b/drivers/pci/hotplug/shpchp.h @@ -89,15 +89,9 @@ struct controller { struct list_head slot_list; struct hpc_ops *hpc_ops; wait_queue_head_t queue; /* sleep & wake process */ - u8 bus; - u8 device; - u8 function; u8 slot_device_offset; - u8 add_support; u32 pcix_misc2_reg; /* for amd pogo errata */ - enum pci_bus_speed speed; u32 first_slot; /* First physical slot number */ - u8 slot_bus; /* Bus where the slots handled by this controller sit */ u32 cap_offset; unsigned long mmio_base; unsigned long mmio_size; diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c index 68471dd49f7..b64999d59f5 100644 --- a/drivers/pci/hotplug/shpchp_core.c +++ b/drivers/pci/hotplug/shpchp_core.c @@ -149,7 +149,7 @@ static int init_slots(struct controller *ctrl) slot->hp_slot = i; slot->ctrl = ctrl; - slot->bus = ctrl->slot_bus; + slot->bus = ctrl->pci_dev->subordinate->number; slot->device = ctrl->slot_device_offset + i; slot->hpc_ops = ctrl->hpc_ops; mutex_init(&slot->lock); @@ -355,7 +355,6 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { int rc; struct controller *ctrl; - struct slot *t_slot; if (!is_shpc_capable(pdev)) return -ENODEV; @@ -376,16 +375,6 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_drvdata(pdev, ctrl); - ctrl->bus = pdev->bus->number; - ctrl->slot_bus = pdev->subordinate->number; - ctrl->device = PCI_SLOT(pdev->devfn); - ctrl->function = PCI_FUNC(pdev->devfn); - - dbg("ctrl bus=0x%x, device=%x, function=%x, irq=%x\n", - ctrl->bus, ctrl->device, ctrl->function, pdev->irq); - - ctrl->add_support = 1; - /* Setup the slot information structures */ rc = init_slots(ctrl); if (rc) { @@ -393,19 +382,6 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_release_ctlr; } - /* Now hpc_functions (slot->hpc_ops->functions) are ready */ - t_slot = shpchp_find_slot(ctrl, ctrl->slot_device_offset); - - /* Check for operation bus speed */ - rc = t_slot->hpc_ops->get_cur_bus_speed(t_slot, &ctrl->speed); - dbg("%s: t_slot->hp_slot %x\n", __FUNCTION__,t_slot->hp_slot); - - if (rc || ctrl->speed == PCI_SPEED_UNKNOWN) { - err(SHPC_MODULE_NAME ": Can't get current bus speed. " - "Set to 33MHz PCI.\n"); - ctrl->speed = PCI_SPEED_33MHz; - } - rc = shpchp_create_ctrl_files(ctrl); if (rc) goto err_cleanup_slots; -- cgit v1.2.3 From 6f39be2e05cc6e66481f1395264297f06bef1e21 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Sat, 16 Dec 2006 15:25:49 -0800 Subject: shpchp: remove shpchprm_get_physical_slot_number This patch removes unnecessary shpchprm_get_physical_slot_number() function. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/shpchp_core.c | 25 +------------------------ 1 file changed, 1 insertion(+), 24 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c index b64999d59f5..24d1afa4cf9 100644 --- a/drivers/pci/hotplug/shpchp_core.c +++ b/drivers/pci/hotplug/shpchp_core.c @@ -104,23 +104,6 @@ static void make_slot_name(struct slot *slot) slot->bus, slot->number); } - - - -static int -shpchprm_get_physical_slot_number(struct controller *ctrl, u32 *sun, - u8 busnum, u8 devnum) -{ - int offset = devnum - ctrl->slot_device_offset; - - dbg("%s: ctrl->slot_num_inc %d, offset %d\n", __FUNCTION__, - ctrl->slot_num_inc, offset); - *sun = (u8) (ctrl->first_slot + ctrl->slot_num_inc *offset); - return 0; -} - - - static int init_slots(struct controller *ctrl) { struct slot *slot; @@ -128,7 +111,6 @@ static int init_slots(struct controller *ctrl) struct hotplug_slot_info *info; int retval = -ENOMEM; int i; - u32 sun; for (i = 0; i < ctrl->num_slots; i++) { slot = kzalloc(sizeof(*slot), GFP_KERNEL); @@ -152,13 +134,8 @@ static int init_slots(struct controller *ctrl) slot->bus = ctrl->pci_dev->subordinate->number; slot->device = ctrl->slot_device_offset + i; slot->hpc_ops = ctrl->hpc_ops; + slot->number = ctrl->first_slot + (ctrl->slot_num_inc * i); mutex_init(&slot->lock); - - if (shpchprm_get_physical_slot_number(ctrl, &sun, - slot->bus, slot->device)) - goto error_info; - - slot->number = sun; INIT_DELAYED_WORK(&slot->work, queue_pushbutton_work); /* register this slot with the hotplug pci core */ -- cgit v1.2.3 From 8352e04eb427db0ca8ebb9a8547971d433627cad Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Sat, 16 Dec 2006 15:25:57 -0800 Subject: shpchp: cleanup shpchp.h This patch cleans up shpchp.h. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/shpchp.h | 190 ++++++++++++-------------------------- drivers/pci/hotplug/shpchp_core.c | 22 ++--- drivers/pci/hotplug/shpchp_ctrl.c | 9 +- 3 files changed, 77 insertions(+), 144 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h index e2171498247..3ca6a4f574b 100644 --- a/drivers/pci/hotplug/shpchp.h +++ b/drivers/pci/hotplug/shpchp.h @@ -47,11 +47,17 @@ extern int shpchp_poll_time; extern int shpchp_debug; extern struct workqueue_struct *shpchp_wq; -/*#define dbg(format, arg...) do { if (shpchp_debug) printk(KERN_DEBUG "%s: " format, MY_NAME , ## arg); } while (0)*/ -#define dbg(format, arg...) do { if (shpchp_debug) printk("%s: " format, MY_NAME , ## arg); } while (0) -#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg) -#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg) -#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) +#define dbg(format, arg...) \ + do { \ + if (shpchp_debug) \ + printk("%s: " format, MY_NAME , ## arg); \ + } while (0) +#define err(format, arg...) \ + printk(KERN_ERR "%s: " format, MY_NAME , ## arg) +#define info(format, arg...) \ + printk(KERN_INFO "%s: " format, MY_NAME , ## arg) +#define warn(format, arg...) \ + printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) #define SLOT_NAME_SIZE 10 struct slot { @@ -99,13 +105,11 @@ struct controller { struct timer_list poll_timer; }; - /* Define AMD SHPC ID */ #define PCI_DEVICE_ID_AMD_GOLAM_7450 0x7450 #define PCI_DEVICE_ID_AMD_POGO_7458 0x7458 /* AMD PCIX bridge registers */ - #define PCIX_MEM_BASE_LIMIT_OFFSET 0x1C #define PCIX_MISCII_OFFSET 0x48 #define PCIX_MISC_BRIDGE_ERRORS_OFFSET 0x80 @@ -140,8 +144,6 @@ struct controller { #define POWERON_STATE 3 #define POWEROFF_STATE 4 -#define PCI_TO_PCI_BRIDGE_CLASS 0x00060400 - /* Error messages */ #define INTERLOCK_OPEN 0x00000002 #define ADD_NOT_SUPPORTED 0x00000003 @@ -153,50 +155,32 @@ struct controller { #define WRONG_BUS_FREQUENCY 0x0000000D #define POWER_FAILURE 0x0000000E -#define REMOVE_NOT_SUPPORTED 0x00000003 - -#define DISABLE_CARD 1 - -/* - * error Messages - */ -#define msg_initialization_err "Initialization failure, error=%d\n" -#define msg_button_on "PCI slot #%s - powering on due to button press.\n" -#define msg_button_off "PCI slot #%s - powering off due to button press.\n" -#define msg_button_cancel "PCI slot #%s - action canceled due to button press.\n" - -/* sysfs functions for the hotplug controller info */ extern int __must_check shpchp_create_ctrl_files(struct controller *ctrl); - -extern int shpchp_sysfs_enable_slot(struct slot *slot); -extern int shpchp_sysfs_disable_slot(struct slot *slot); - +extern void shpchp_remove_ctrl_files(struct controller *ctrl); +extern int shpchp_sysfs_enable_slot(struct slot *slot); +extern int shpchp_sysfs_disable_slot(struct slot *slot); extern u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl); extern u8 shpchp_handle_switch_change(u8 hp_slot, struct controller *ctrl); extern u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl); extern u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl); - -/* pci functions */ -extern int shpchp_save_config(struct controller *ctrl, int busnumber, int num_ctlr_slots, int first_device_num); -extern int shpchp_configure_device(struct slot *p_slot); -extern int shpchp_unconfigure_device(struct slot *p_slot); -extern void shpchp_remove_ctrl_files(struct controller *ctrl); -extern void cleanup_slots(struct controller *ctrl); -extern void queue_pushbutton_work(struct work_struct *work); - +extern int shpchp_configure_device(struct slot *p_slot); +extern int shpchp_unconfigure_device(struct slot *p_slot); +extern void cleanup_slots(struct controller *ctrl); +extern void queue_pushbutton_work(struct work_struct *work); +extern int shpc_init( struct controller *ctrl, struct pci_dev *pdev); #ifdef CONFIG_ACPI static inline int get_hp_params_from_firmware(struct pci_dev *dev, - struct hotplug_params *hpp) + struct hotplug_params *hpp) { if (ACPI_FAILURE(acpi_get_hp_params_from_firmware(dev->bus, hpp))) return -ENODEV; return 0; } -#define get_hp_hw_control_from_firmware(pdev) \ - do { \ - if (DEVICE_ACPI_HANDLE(&(pdev->dev))) \ - acpi_run_oshp(DEVICE_ACPI_HANDLE(&(pdev->dev))); \ +#define get_hp_hw_control_from_firmware(pdev) \ + do { \ + if (DEVICE_ACPI_HANDLE(&(pdev->dev))) \ + acpi_run_oshp(DEVICE_ACPI_HANDLE(&(pdev->dev)));\ } while (0) #else #define get_hp_params_from_firmware(dev, hpp) (-ENODEV) @@ -217,90 +201,40 @@ struct ctrl_reg { volatile u32 serr_loc; volatile u32 serr_intr_enable; volatile u32 slot1; - volatile u32 slot2; - volatile u32 slot3; - volatile u32 slot4; - volatile u32 slot5; - volatile u32 slot6; - volatile u32 slot7; - volatile u32 slot8; - volatile u32 slot9; - volatile u32 slot10; - volatile u32 slot11; - volatile u32 slot12; } __attribute__ ((packed)); /* offsets to the controller registers based on the above structure layout */ enum ctrl_offsets { - BASE_OFFSET = offsetof(struct ctrl_reg, base_offset), - SLOT_AVAIL1 = offsetof(struct ctrl_reg, slot_avail1), - SLOT_AVAIL2 = offsetof(struct ctrl_reg, slot_avail2), - SLOT_CONFIG = offsetof(struct ctrl_reg, slot_config), - SEC_BUS_CONFIG = offsetof(struct ctrl_reg, sec_bus_config), - MSI_CTRL = offsetof(struct ctrl_reg, msi_ctrl), - PROG_INTERFACE = offsetof(struct ctrl_reg, prog_interface), - CMD = offsetof(struct ctrl_reg, cmd), - CMD_STATUS = offsetof(struct ctrl_reg, cmd_status), - INTR_LOC = offsetof(struct ctrl_reg, intr_loc), - SERR_LOC = offsetof(struct ctrl_reg, serr_loc), - SERR_INTR_ENABLE = offsetof(struct ctrl_reg, serr_intr_enable), - SLOT1 = offsetof(struct ctrl_reg, slot1), - SLOT2 = offsetof(struct ctrl_reg, slot2), - SLOT3 = offsetof(struct ctrl_reg, slot3), - SLOT4 = offsetof(struct ctrl_reg, slot4), - SLOT5 = offsetof(struct ctrl_reg, slot5), - SLOT6 = offsetof(struct ctrl_reg, slot6), - SLOT7 = offsetof(struct ctrl_reg, slot7), - SLOT8 = offsetof(struct ctrl_reg, slot8), - SLOT9 = offsetof(struct ctrl_reg, slot9), - SLOT10 = offsetof(struct ctrl_reg, slot10), - SLOT11 = offsetof(struct ctrl_reg, slot11), - SLOT12 = offsetof(struct ctrl_reg, slot12), + BASE_OFFSET = offsetof(struct ctrl_reg, base_offset), + SLOT_AVAIL1 = offsetof(struct ctrl_reg, slot_avail1), + SLOT_AVAIL2 = offsetof(struct ctrl_reg, slot_avail2), + SLOT_CONFIG = offsetof(struct ctrl_reg, slot_config), + SEC_BUS_CONFIG = offsetof(struct ctrl_reg, sec_bus_config), + MSI_CTRL = offsetof(struct ctrl_reg, msi_ctrl), + PROG_INTERFACE = offsetof(struct ctrl_reg, prog_interface), + CMD = offsetof(struct ctrl_reg, cmd), + CMD_STATUS = offsetof(struct ctrl_reg, cmd_status), + INTR_LOC = offsetof(struct ctrl_reg, intr_loc), + SERR_LOC = offsetof(struct ctrl_reg, serr_loc), + SERR_INTR_ENABLE = offsetof(struct ctrl_reg, serr_intr_enable), + SLOT1 = offsetof(struct ctrl_reg, slot1), }; -/* Inline functions to check the sanity of a pointer that is passed to us */ -static inline int slot_paranoia_check (struct slot *slot, const char *function) -{ - if (!slot) { - dbg("%s - slot == NULL", function); - return -1; - } - if (!slot->hotplug_slot) { - dbg("%s - slot->hotplug_slot == NULL!", function); - return -1; - } - return 0; -} - -static inline struct slot *get_slot (struct hotplug_slot *hotplug_slot, const char *function) +static inline struct slot *get_slot(struct hotplug_slot *hotplug_slot) { - struct slot *slot; - - if (!hotplug_slot) { - dbg("%s - hotplug_slot == NULL\n", function); - return NULL; - } - - slot = (struct slot *)hotplug_slot->private; - if (slot_paranoia_check (slot, function)) - return NULL; - return slot; + return hotplug_slot->private; } -static inline struct slot *shpchp_find_slot (struct controller *ctrl, u8 device) +static inline struct slot *shpchp_find_slot(struct controller *ctrl, u8 device) { struct slot *slot; - if (!ctrl) - return NULL; - list_for_each_entry(slot, &ctrl->slot_list, slot_list) { if (slot->device == device) return slot; } err("%s: slot (device=0x%x) not found\n", __FUNCTION__, device); - return NULL; } @@ -377,31 +311,27 @@ static inline void amd_pogo_errata_restore_misc_reg(struct slot *p_slot) pci_write_config_dword(p_slot->ctrl->pci_dev, PCIX_MISCII_OFFSET, pcix_misc2_temp); } -int shpc_init( struct controller *ctrl, struct pci_dev *pdev); - struct hpc_ops { - int (*power_on_slot ) (struct slot *slot); - int (*slot_enable ) (struct slot *slot); - int (*slot_disable ) (struct slot *slot); - int (*set_bus_speed_mode) (struct slot *slot, enum pci_bus_speed speed); - int (*get_power_status) (struct slot *slot, u8 *status); - int (*get_attention_status) (struct slot *slot, u8 *status); - int (*set_attention_status) (struct slot *slot, u8 status); - int (*get_latch_status) (struct slot *slot, u8 *status); - int (*get_adapter_status) (struct slot *slot, u8 *status); - - int (*get_max_bus_speed) (struct slot *slot, enum pci_bus_speed *speed); - int (*get_cur_bus_speed) (struct slot *slot, enum pci_bus_speed *speed); - int (*get_adapter_speed) (struct slot *slot, enum pci_bus_speed *speed); - int (*get_mode1_ECC_cap) (struct slot *slot, u8 *mode); - int (*get_prog_int) (struct slot *slot, u8 *prog_int); - - int (*query_power_fault) (struct slot *slot); - void (*green_led_on) (struct slot *slot); - void (*green_led_off) (struct slot *slot); - void (*green_led_blink) (struct slot *slot); - void (*release_ctlr) (struct controller *ctrl); - int (*check_cmd_status) (struct controller *ctrl); + int (*power_on_slot)(struct slot *slot); + int (*slot_enable)(struct slot *slot); + int (*slot_disable)(struct slot *slot); + int (*set_bus_speed_mode)(struct slot *slot, enum pci_bus_speed speed); + int (*get_power_status)(struct slot *slot, u8 *status); + int (*get_attention_status)(struct slot *slot, u8 *status); + int (*set_attention_status)(struct slot *slot, u8 status); + int (*get_latch_status)(struct slot *slot, u8 *status); + int (*get_adapter_status)(struct slot *slot, u8 *status); + int (*get_max_bus_speed)(struct slot *slot, enum pci_bus_speed *speed); + int (*get_cur_bus_speed)(struct slot *slot, enum pci_bus_speed *speed); + int (*get_adapter_speed)(struct slot *slot, enum pci_bus_speed *speed); + int (*get_mode1_ECC_cap)(struct slot *slot, u8 *mode); + int (*get_prog_int)(struct slot *slot, u8 *prog_int); + int (*query_power_fault)(struct slot *slot); + void (*green_led_on)(struct slot *slot); + void (*green_led_off)(struct slot *slot); + void (*green_led_blink)(struct slot *slot); + void (*release_ctlr)(struct controller *ctrl); + int (*check_cmd_status)(struct controller *ctrl); }; #endif /* _SHPCHP_H */ diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c index 24d1afa4cf9..590cd3cbe01 100644 --- a/drivers/pci/hotplug/shpchp_core.c +++ b/drivers/pci/hotplug/shpchp_core.c @@ -193,7 +193,7 @@ void cleanup_slots(struct controller *ctrl) */ static int set_attention_status (struct hotplug_slot *hotplug_slot, u8 status) { - struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); + struct slot *slot = get_slot(hotplug_slot); dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); @@ -205,7 +205,7 @@ static int set_attention_status (struct hotplug_slot *hotplug_slot, u8 status) static int enable_slot (struct hotplug_slot *hotplug_slot) { - struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); + struct slot *slot = get_slot(hotplug_slot); dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); @@ -214,7 +214,7 @@ static int enable_slot (struct hotplug_slot *hotplug_slot) static int disable_slot (struct hotplug_slot *hotplug_slot) { - struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); + struct slot *slot = get_slot(hotplug_slot); dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); @@ -223,7 +223,7 @@ static int disable_slot (struct hotplug_slot *hotplug_slot) static int get_power_status (struct hotplug_slot *hotplug_slot, u8 *value) { - struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); + struct slot *slot = get_slot(hotplug_slot); int retval; dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); @@ -237,7 +237,7 @@ static int get_power_status (struct hotplug_slot *hotplug_slot, u8 *value) static int get_attention_status (struct hotplug_slot *hotplug_slot, u8 *value) { - struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); + struct slot *slot = get_slot(hotplug_slot); int retval; dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); @@ -251,7 +251,7 @@ static int get_attention_status (struct hotplug_slot *hotplug_slot, u8 *value) static int get_latch_status (struct hotplug_slot *hotplug_slot, u8 *value) { - struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); + struct slot *slot = get_slot(hotplug_slot); int retval; dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); @@ -265,7 +265,7 @@ static int get_latch_status (struct hotplug_slot *hotplug_slot, u8 *value) static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value) { - struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); + struct slot *slot = get_slot(hotplug_slot); int retval; dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); @@ -279,7 +279,7 @@ static int get_adapter_status (struct hotplug_slot *hotplug_slot, u8 *value) static int get_address (struct hotplug_slot *hotplug_slot, u32 *value) { - struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); + struct slot *slot = get_slot(hotplug_slot); struct pci_bus *bus = slot->ctrl->pci_dev->subordinate; dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); @@ -291,7 +291,7 @@ static int get_address (struct hotplug_slot *hotplug_slot, u32 *value) static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) { - struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); + struct slot *slot = get_slot(hotplug_slot); int retval; dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); @@ -305,7 +305,7 @@ static int get_max_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_sp static int get_cur_bus_speed (struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value) { - struct slot *slot = get_slot(hotplug_slot, __FUNCTION__); + struct slot *slot = get_slot(hotplug_slot); int retval; dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); @@ -355,7 +355,7 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* Setup the slot information structures */ rc = init_slots(ctrl); if (rc) { - err(msg_initialization_err, 6); + err("%s: slot initialization failed\n", SHPC_MODULE_NAME); goto err_out_release_ctlr; } diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c index 39893c77d00..6bb84734cd6 100644 --- a/drivers/pci/hotplug/shpchp_ctrl.c +++ b/drivers/pci/hotplug/shpchp_ctrl.c @@ -493,10 +493,12 @@ static void handle_button_press_event(struct slot *p_slot) p_slot->hpc_ops->get_power_status(p_slot, &getstatus); if (getstatus) { p_slot->state = BLINKINGOFF_STATE; - info(msg_button_off, p_slot->name); + info("PCI slot #%s - powering off due to button " + "press.\n", p_slot->name); } else { p_slot->state = BLINKINGON_STATE; - info(msg_button_on, p_slot->name); + info("PCI slot #%s - powering on due to button " + "press.\n", p_slot->name); } /* blink green LED and turn off amber */ p_slot->hpc_ops->green_led_blink(p_slot); @@ -519,7 +521,8 @@ static void handle_button_press_event(struct slot *p_slot) else p_slot->hpc_ops->green_led_off(p_slot); p_slot->hpc_ops->set_attention_status(p_slot, 0); - info(msg_button_cancel, p_slot->name); + info("PCI slot #%s - action canceled due to button press\n", + p_slot->name); p_slot->state = STATIC_STATE; break; case POWEROFF_STATE: -- cgit v1.2.3 From 031f30d2bc69f78cf542c0e5874a9d67c03d0ffe Mon Sep 17 00:00:00 2001 From: Kristen Carlson Accardi Date: Sat, 16 Dec 2006 15:26:04 -0800 Subject: acpiphp: Link-time error for PCI Hotplug I'm seeing: `acpiphp_glue_exit' referenced in section `.init.text' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o when trying to compile an IA64 kernel with PCI hotplug enabled. I suggest this patch: Signed-off-by: Peter Chubb Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/acpiphp_glue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 0b9d0db1590..bd1faebf61a 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -1682,7 +1682,7 @@ int __init acpiphp_glue_init(void) * * This function frees all data allocated in acpiphp_glue_init() */ -void __exit acpiphp_glue_exit(void) +void acpiphp_glue_exit(void) { acpi_pci_unregister_driver(&acpi_pci_hp_driver); } -- cgit v1.2.3 From 36bcbec7ce21e2e8b3143b11a05747330abeca70 Mon Sep 17 00:00:00 2001 From: Burman Yan Date: Tue, 19 Dec 2006 12:56:11 -0800 Subject: ACPI: replace kmalloc+memset with kzalloc Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/pci/hotplug/acpiphp_ibm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c index bd40aee10e1..7f03881a8b6 100644 --- a/drivers/pci/hotplug/acpiphp_ibm.c +++ b/drivers/pci/hotplug/acpiphp_ibm.c @@ -319,13 +319,12 @@ static int ibm_get_table_from_acpi(char **bufp) if (bufp == NULL) goto read_table_done; - lbuf = kmalloc(size, GFP_KERNEL); + lbuf = kzalloc(size, GFP_KERNEL); dbg("%s: element count: %i, ASL table size: %i, &table = 0x%p\n", __FUNCTION__, package->package.count, size, lbuf); if (lbuf) { *bufp = lbuf; - memset(lbuf, 0, size); } else { size = -ENOMEM; goto read_table_done; -- cgit v1.2.3 From fe0e5c4d947d34f10002b4cf272f0ebf110305b7 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 22 Dec 2006 01:11:36 -0800 Subject: [PATCH] increase CARDBUS_MEM_SIZE Linus sayeth: Google knows everything, and finds, on MS own site no less: "Windows 2000 default resources: One 4K memory window One 2 MB memory window Two 256-byte I/O windows" which is clearly utterly bogus and insufficient. But Microsoft apparently realized this, and: "Windows XP default resources: Because one memory window of 4K and one window of 2 MB are not sufficient for CardBus controllers in many configurations, Windows XP allocates larger memory windows to CardBus controllers where possible. However, resource windows are static (that is, the operating system does not dynamically allocate larger memory windows if new devices appear.) Under Windows XP, CardBus controllers will be assigned the following resources: One 4K memory window, as in Windows 2000 64 MB memory, if that amount of memory is available. If 64 MB is not available the controller will receive 32 MB; if 32 MB is not available, the controller will receive 16 MB; if 16 MB is not available, the bridge will receive 8 MB; and so on down to a minimum assignment of 1 MB in configurations where memory is too constrained for the operating system to provide a larger window. Two 256-byte I/O windows" So I think we have our answer. Windows uses one 4k window, and one 64MB window. And they are no more dynamic than we are (we _could_ try to do it dynamically, but let's face it, it's fairly painful to dynamically expand PCI bus resources - you may need to reprogram everything up to the root, so it would be absolutely crazy to do that unless you have some serious masochistic tendencies). So let's just increase our default value to 64M too. Cc: Markus Rechberger Cc: Daniel Ritz Cc: Dominik Brodowski Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/setup-bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 8f7bcf56f14..89f3036f0de 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -41,7 +41,7 @@ * have a P2P bridge below a cardbus bridge, we need 4K. */ #define CARDBUS_IO_SIZE (256) -#define CARDBUS_MEM_SIZE (32*1024*1024) +#define CARDBUS_MEM_SIZE (64*1024*1024) static void __devinit pbus_assign_resources_sorted(struct pci_bus *bus) -- cgit v1.2.3 From 76e6a1d6607e5b58003bb87e3b3220d5fdb7568d Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 29 Dec 2006 16:47:29 -0800 Subject: [PATCH] pci/probe: fix macro that confuses kernel-doc Don't have macros between a function's kernel-doc block and the function definition. This is not valid for kernel-doc. Warning(/var/linsrc/linux-2.6.20-rc1-git8//drivers/pci/probe.c:653): No description found for parameter 'IORESOURCE_PCI_FIXED' Signed-off-by: Randy Dunlap Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/probe.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 1ae9c3f50ff..0e0401dd02c 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -639,6 +639,8 @@ static void pci_read_irq(struct pci_dev *dev) dev->irq = irq; } +#define LEGACY_IO_RESOURCE (IORESOURCE_IO | IORESOURCE_PCI_FIXED) + /** * pci_setup_device - fill in class and map information of a device * @dev: the device structure to fill @@ -649,9 +651,6 @@ static void pci_read_irq(struct pci_dev *dev) * Returns 0 on success and -1 if unknown type of device (not normal, bridge * or CardBus). */ - -#define LEGACY_IO_RESOURCE (IORESOURCE_IO | IORESOURCE_PCI_FIXED) - static int pci_setup_device(struct pci_dev * dev) { u32 class; -- cgit v1.2.3 From fd8d4b11354a8a33ef61b06fa64880c2c6d25ae4 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Thu, 14 Dec 2006 16:40:00 -0800 Subject: [PATCH] PCI: disable PCI_MULTITHREAD_PROBE Unfortunatly, no one reads Kconfig help entries :( Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/pci/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index f1dd81a1d59..3cfb0a3575e 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -19,7 +19,7 @@ config PCI_MSI config PCI_MULTITHREAD_PROBE bool "PCI Multi-threaded probe (EXPERIMENTAL)" - depends on PCI && EXPERIMENTAL + depends on PCI && EXPERIMENTAL && BROKEN help Say Y here if you want the PCI core to spawn a new thread for every PCI device that is probed. This can cause a huge -- cgit v1.2.3 From 6ae4adf50380d0fc5176a76d98d324f8fa491a8f Mon Sep 17 00:00:00 2001 From: Ard van Breemen Date: Fri, 5 Jan 2007 16:36:21 -0800 Subject: [PATCH] PCI: prevent down_read when pci_devices is empty The pci_find_subsys gets called very early by obsolete ide setup parameters. This is a bogus call since pci is not initialized yet, so the list is empty. But in the mean time, interrupts get enabled by down_read. This can result in a kernel panic when the irq controller gets initialized. This patch checks if the device list is empty before taking the semaphore, and hence will not enable irq's. Furthermore it will inform that it is called while pci_devices is empty as a reminder that the ide code needs to be fixed. The pci_get_subsys can get called in the same manner, and as such is patched in the same manner. [akpm@osdl.org: cleanups] Signed-off-by: Ard van Breemen Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/search.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'drivers/pci') diff --git a/drivers/pci/search.c b/drivers/pci/search.c index 45f2b20ef51..fab381ed853 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -193,6 +193,18 @@ static struct pci_dev * pci_find_subsys(unsigned int vendor, struct pci_dev *dev; WARN_ON(in_interrupt()); + + /* + * pci_find_subsys() can be called on the ide_setup() path, super-early + * in boot. But the down_read() will enable local interrupts, which + * can cause some machines to crash. So here we detect and flag that + * situation and bail out early. + */ + if (unlikely(list_empty(&pci_devices))) { + printk(KERN_INFO "pci_find_subsys() called while pci_devices " + "is still empty\n"); + return NULL; + } down_read(&pci_bus_sem); n = from ? from->global_list.next : pci_devices.next; @@ -259,6 +271,18 @@ pci_get_subsys(unsigned int vendor, unsigned int device, struct pci_dev *dev; WARN_ON(in_interrupt()); + + /* + * pci_get_subsys() can potentially be called by drivers super-early + * in boot. But the down_read() will enable local interrupts, which + * can cause some machines to crash. So here we detect and flag that + * situation and bail out early. + */ + if (unlikely(list_empty(&pci_devices))) { + printk(KERN_NOTICE "pci_get_subsys() called while pci_devices " + "is still empty\n"); + return NULL; + } down_read(&pci_bus_sem); n = from ? from->global_list.next : pci_devices.next; -- cgit v1.2.3 From 2f5c33b3180169f3eafb698b66686962d637fb0e Mon Sep 17 00:00:00 2001 From: "Mark M. Hoffman" Date: Mon, 8 Jan 2007 22:11:29 -0500 Subject: [PATCH] i2c/pci: fix sis96x smbus quirk once and for all The sis96x SMBus PCI device depends on two different quirks to run in a specific order. Apart from being fragile, this was found to actually break on (at least) recent FC4, FC5, and FC6 kernels. This patch fixes the quirks so that they work without relying on the compiler and/or linker to put them in any specific order. http://lists.lm-sensors.org/pipermail/lm-sensors/2006-April/015962.html https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=189719 I tested this patch. Signed-off-by: Mark M. Hoffman Cc: Andrew Morton Cc: Adrian Bunk Cc: Greg K-H Cc: Jean Delvare Signed-off-by: Linus Torvalds --- drivers/pci/quirks.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 8f0322d6f3b..0535efc4f18 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1117,10 +1117,11 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_h static void quirk_sis_96x_smbus(struct pci_dev *dev) { u8 val = 0; - printk(KERN_INFO "Enabling SiS 96x SMBus.\n"); - pci_read_config_byte(dev, 0x77, &val); - pci_write_config_byte(dev, 0x77, val & ~0x10); pci_read_config_byte(dev, 0x77, &val); + if (val & 0x10) { + printk(KERN_INFO "Enabling SiS 96x SMBus.\n"); + pci_write_config_byte(dev, 0x77, val & ~0x10); + } } /* @@ -1152,11 +1153,12 @@ static void quirk_sis_503(struct pci_dev *dev) printk(KERN_WARNING "Uncovering SIS%x that hid as a SIS503 (compatible=%d)\n", devid, sis_96x_compatible); /* - * Ok, it now shows up as a 96x.. The 96x quirks are after - * the 503 quirk in the quirk table, so they'll automatically - * run and enable things like the SMBus device + * Ok, it now shows up as a 96x.. run the 96x quirk by + * hand in case it has already been processed. + * (depends on link order, which is apparently not guaranteed) */ dev->device = devid; + quirk_sis_96x_smbus(dev); } static void __init quirk_sis_96x_compatible(struct pci_dev *dev) -- cgit v1.2.3 From 9d24a81e84cee7cbf4656d178842838ac5ab23a4 Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Thu, 11 Jan 2007 01:52:44 +0100 Subject: [PATCH] x86-64: pci quirks MODPOST warning fix o MODPOST generates warnings for i386 if kernel is compiled with CONFIG_RELOCATABLE=y WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'asus_hides_smbus_lpc_ich6' (at offset 0xc0217d58) and 'quirk_cardbus_legacy' WARNING: vmlinux - Section mismatch: reference to .init.data: from .text between 'asus_hides_smbus_lpc' (at offset 0xc0217fd9) and 'pci_match_id' o Two quirk functions which are non __init, are accessing data which is of type __init. Signed-off-by: Vivek Goyal Signed-off-by: Andi Kleen --- drivers/pci/quirks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 0535efc4f18..0a70943f8bb 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -955,7 +955,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_ho * becomes necessary to do this tweak in two steps -- I've chosen the Host * bridge as trigger. */ -static int __initdata asus_hides_smbus; +static int asus_hides_smbus; static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev) { -- cgit v1.2.3 From 47a4d5be7c50b2e9b905abbe2b97dc87051c5a44 Mon Sep 17 00:00:00 2001 From: Brice Goglin Date: Wed, 10 Jan 2007 23:15:29 -0800 Subject: [PATCH] increment pos before looking for the next cap in __pci_find_next_ht_cap While testing 2.6.20-rc3 on a machine with some CK804 chipsets, we noticed that quirk_nvidia_ck804_msi_ht_cap() was not detecting HT MSI capabilities anymore. It is actually caused by the MSI mapping on the root chipset being the 2nd HT capability in the chain. pci_find_ht_capability() does not seem to find anything but the first HT cap correctly, because it forgets to increment the position before looking for the next cap. The following patch seems to fix it. At least, this proves that having a ttl is good idea since the machine would have been stucked in an infinite loop if we didn't have a ttl :) We have to pass pos + PCI_CAP_LIST_NEXT to __pci_find_next_cap_ttl to get the next HT cap instead of the same one again. Signed-off-by: Brice Goglin Signed-off-by: Andrew J. Gallatin Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/pci.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 6bfb942428e..206c834d263 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -254,7 +254,8 @@ static int __pci_find_next_ht_cap(struct pci_dev *dev, int pos, int ht_cap) if ((cap & mask) == ht_cap) return pos; - pos = __pci_find_next_cap_ttl(dev->bus, dev->devfn, pos, + pos = __pci_find_next_cap_ttl(dev->bus, dev->devfn, + pos + PCI_CAP_LIST_NEXT, PCI_CAP_ID_HT, &ttl); } -- cgit v1.2.3 From 2e45785c529e0c60b1801b4fabacb05e0b8cdf87 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Fri, 5 Jan 2007 09:17:56 +0100 Subject: PCI: Unhide the SMBus on the Asus P4P800-X Unhide the SMBus on the Asus P4P800-X (and probably some other models of the family.) This gives access to the memory module SPD EEPROMs. Thanks to Winbond for supporting the lm-sensors project with the donation of this motherboard. Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 0a70943f8bb..ef882a8a094 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1002,6 +1002,11 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev) case 0x186a: /* M6Ne notebook */ asus_hides_smbus = 1; } + if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) + switch (dev->subsystem_device) { + case 0x80f2: /* P4P800-X */ + asus_hides_smbus = 1; + } if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) { switch (dev->subsystem_device) { case 0x1882: /* M6V notebook */ -- cgit v1.2.3 From ae9608af9e300395ec032479621f32688c121141 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 9 Jan 2007 21:41:01 -0800 Subject: PCI: fix pci-driver kernel-doc Function short description should be on only one line. Signed-off-by: Randy Dunlap Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-driver.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index b8d2385e29b..92d5e8db0de 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -150,8 +150,7 @@ const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, } /** - * pci_match_device - Tell if a PCI device structure has a matching - * PCI device id structure + * pci_match_device - Tell if a PCI device structure has a matching PCI device id structure * @drv: the PCI driver to match against * @dev: the PCI device structure to match against * -- cgit v1.2.3 From c06bb5d49d8b240876c7c5019197e6a7bd33bcf7 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Tue, 30 Jan 2007 14:36:09 -0800 Subject: [PATCH] Fix VIA quirks Fix VIA quirks that were recently broken by Alan Cox in the upstream kernel (commit 1597cacbe39802d86656d1f2e6329895bd2ef531). My understanding is that pci_find_present() doesn't work yet at the time the quirks are run. So I used a two-step quirk as is done for some other quirks already. First we detect the VIA south bridges and set the right low and high device limits, then we are ready to actually run the quirks on the affected devices. Signed-off-by: Jean Delvare Acked-by: Alan Cox Acked-by: Nick Piggin Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/quirks.c | 78 ++++++++++++++++++++++++++++------------------------ 1 file changed, 42 insertions(+), 36 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index ef882a8a094..16945c2ba2c 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -654,19 +654,40 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vi * VIA bridges which have VLink */ -static const struct pci_device_id via_vlink_fixup_tbl[] = { - /* Internal devices need IRQ line routing, pre VLink */ - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686), 0 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8231), 17 }, - /* Devices with VLink */ - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_0), 17}, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233A), 17 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233C_0), 17 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8235), 16 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237), 15 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237A), 15 }, - { 0, }, -}; +static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18; + +static void quirk_via_bridge(struct pci_dev *dev) +{ + /* See what bridge we have and find the device ranges */ + switch (dev->device) { + case PCI_DEVICE_ID_VIA_82C686: + /* 82C686 is special */ + via_vlink_dev_lo = 7; + via_vlink_dev_hi = 7; + break; + case PCI_DEVICE_ID_VIA_8237: + case PCI_DEVICE_ID_VIA_8237A: + via_vlink_dev_lo = 15; + break; + case PCI_DEVICE_ID_VIA_8235: + via_vlink_dev_lo = 16; + break; + case PCI_DEVICE_ID_VIA_8231: + case PCI_DEVICE_ID_VIA_8233_0: + case PCI_DEVICE_ID_VIA_8233A: + case PCI_DEVICE_ID_VIA_8233C_0: + via_vlink_dev_lo = 17; + break; + } +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge); /** * quirk_via_vlink - VIA VLink IRQ number update @@ -675,35 +696,20 @@ static const struct pci_device_id via_vlink_fixup_tbl[] = { * If the device we are dealing with is on a PIC IRQ we need to * ensure that the IRQ line register which usually is not relevant * for PCI cards, is actually written so that interrupts get sent - * to the right place + * to the right place. + * We only do this on systems where a VIA south bridge was detected, + * and only for VIA devices on the motherboard (see quirk_via_bridge + * above). */ static void quirk_via_vlink(struct pci_dev *dev) { - const struct pci_device_id *via_vlink_fixup; - static int dev_lo = -1, dev_hi = 18; u8 irq, new_irq; - /* Check if we have VLink and cache the result */ - - /* Checked already - no */ - if (dev_lo == -2) + /* Check if we have VLink at all */ + if (via_vlink_dev_lo == -1) return; - /* Not checked - see what bridge we have and find the device - ranges */ - - if (dev_lo == -1) { - via_vlink_fixup = pci_find_present(via_vlink_fixup_tbl); - if (via_vlink_fixup == NULL) { - dev_lo = -2; - return; - } - dev_lo = via_vlink_fixup->driver_data; - /* 82C686 is special - 0/0 */ - if (dev_lo == 0) - dev_hi = 0; - } new_irq = dev->irq; /* Don't quirk interrupts outside the legacy IRQ range */ @@ -711,8 +717,8 @@ static void quirk_via_vlink(struct pci_dev *dev) return; /* Internal device ? */ - if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > dev_hi || - PCI_SLOT(dev->devfn) < dev_lo) + if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi || + PCI_SLOT(dev->devfn) < via_vlink_dev_lo) return; /* This is an internal VLink device on a PIC interrupt. The BIOS -- cgit v1.2.3 From cb7468ef4cce8f240604b80b82ac157fa9930e94 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Wed, 31 Jan 2007 23:48:12 -0800 Subject: [PATCH] via quirk update Add special handling for the VT82C686. Signed-off-by: Jean Delvare Cc: Alan Cox Cc: Nick Piggin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/quirks.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 16945c2ba2c..dcc0c1ab95e 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -661,9 +661,11 @@ static void quirk_via_bridge(struct pci_dev *dev) /* See what bridge we have and find the device ranges */ switch (dev->device) { case PCI_DEVICE_ID_VIA_82C686: - /* 82C686 is special */ - via_vlink_dev_lo = 7; - via_vlink_dev_hi = 7; + /* The VT82C686 is special, it attaches to PCI and can have + any device number. All its subdevices are functions of + that single device. */ + via_vlink_dev_lo = PCI_SLOT(dev->devfn); + via_vlink_dev_hi = PCI_SLOT(dev->devfn); break; case PCI_DEVICE_ID_VIA_8237: case PCI_DEVICE_ID_VIA_8237A: -- cgit v1.2.3 From 6a4c24ec52128c1f57b7d2d24cf4dd13fc23f474 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Wed, 31 Jan 2007 23:48:13 -0800 Subject: [PATCH] pci: remove warning messages Remove these recently-added warnings. They don't tell us anythng very interesting and Kumar says "On an embedded PPC reference system I see this message 6 times when I've got no cards in the PCI slots." Acked-by: Kumar Gala Acked-by: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/pci/search.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/search.c b/drivers/pci/search.c index fab381ed853..b2653c4afe9 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -200,11 +200,8 @@ static struct pci_dev * pci_find_subsys(unsigned int vendor, * can cause some machines to crash. So here we detect and flag that * situation and bail out early. */ - if (unlikely(list_empty(&pci_devices))) { - printk(KERN_INFO "pci_find_subsys() called while pci_devices " - "is still empty\n"); + if (unlikely(list_empty(&pci_devices))) return NULL; - } down_read(&pci_bus_sem); n = from ? from->global_list.next : pci_devices.next; @@ -278,11 +275,8 @@ pci_get_subsys(unsigned int vendor, unsigned int device, * can cause some machines to crash. So here we detect and flag that * situation and bail out early. */ - if (unlikely(list_empty(&pci_devices))) { - printk(KERN_NOTICE "pci_get_subsys() called while pci_devices " - "is still empty\n"); + if (unlikely(list_empty(&pci_devices))) return NULL; - } down_read(&pci_bus_sem); n = from ? from->global_list.next : pci_devices.next; -- cgit v1.2.3 From 77280989673ee1ef736a92617f52e2be45651833 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 2 Feb 2007 14:51:09 +0900 Subject: ahci/pata_jmicron: fix JMicron quirk For all JMicrons except for 361 and 368, AHCI mode enable bits in the Control(1) should be set. This used to be done in both ahci and pata_jmicron but while moving programming to PCI quirk, it was removed from ahci part while still left in pata_jmicron. The implemented JMicron PCI quirk was incorrect in that it didn't program AHCI mode enable bits. If pata_jmicron is loaded first and programs those bits, the ahci ports work; otherwise, ahci device detection fails miserably. This patch makes JMicron PCI quirk clear SATA IDE mode bits and set AHCI mode bits and remove the respective part from pata_jmicron. Tested on JMB361, 363 and 368. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/pci/quirks.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index dcc0c1ab95e..c913ea4e545 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1262,8 +1262,8 @@ static void quirk_jmicron_dualfn(struct pci_dev *pdev) pci_read_config_dword(pdev, 0x40, &conf); /* Enable dual function mode, AHCI on fn 0, IDE fn1 */ /* Set the class codes correctly and then direct IDE 0 */ - conf &= ~0x000F0200; /* Clear bit 9 and 16-19 */ - conf |= 0x00C20002; /* Set bit 1, 17, 22, 23 */ + conf &= ~0x000FF200; /* Clear bit 9 and 12-19 */ + conf |= 0x00C2A102; /* Set 1, 8, 13, 15, 17, 22, 23 */ pci_write_config_dword(pdev, 0x40, conf); /* Reconfigure so that the PCI scanner discovers the -- cgit v1.2.3 From 15a58ed12142939d51076380e6e58af477ad96ec Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Fri, 2 Feb 2007 19:48:22 +0300 Subject: ACPICA: Remove duplicate table definitions (non-conflicting), cont Signed-off-by: Len Brown --- drivers/pci/hotplug/acpiphp_glue.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index bd1faebf61a..fca978fb158 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -773,13 +773,13 @@ static int get_gsi_base(acpi_handle handle, u32 *gsi_base) goto out; table = obj->buffer.pointer; - switch (((acpi_table_entry_header *)table)->type) { - case ACPI_MADT_IOSAPIC: - *gsi_base = ((struct acpi_table_iosapic *)table)->global_irq_base; + switch (((struct acpi_subtable_header *)table)->type) { + case ACPI_MADT_TYPE_IO_SAPIC: + *gsi_base = ((struct acpi_madt_io_sapic *)table)->global_irq_base; result = 0; break; - case ACPI_MADT_IOAPIC: - *gsi_base = ((struct acpi_table_ioapic *)table)->global_irq_base; + case ACPI_MADT_TYPE_IO_APIC: + *gsi_base = ((struct acpi_madt_io_apic *)table)->global_irq_base; result = 0; break; default: -- cgit v1.2.3 From 3e643e77a929202455a0cc868c2030a5ba8d1371 Mon Sep 17 00:00:00 2001 From: John Keller Date: Tue, 30 Jan 2007 01:18:38 -0500 Subject: Altix: Add ACPI SSDT PCI device support (hotplug) Support for dynamic loading and unloading of ACPI SSDT tables upon slot hotplugs and unplugs. On SN platforms, we now represent every populated root bus slot with a single ACPI SSDT table containing info for every device and PPB attached to the slot. These SSDTs are generated by the prom at initial boot and hotplug time. The info in these SSDT tables is used by the SN kernel IO "fixup" code (which is called at boot and hotplug time). On hotplugs (i.e. enable_slot()), if running with an ACPI capable prom, attempt to obtain a new ACPI SSDT table for the slot being hotplugged. If successful, add the table to the ACPI namespace (acpi_load_table()) and then walk the new devices and add them to the ACPI infrastructure (acpi_bus_add()). On hot unplugs (i.e. disable_slot()), if running with an ACPI capable prom, attempt to remove the SSDT table associated with the slot from the ACPI namespace (acpi_unload_table_id()) and infastructure (acpi_bus_trim()). From: John Keller A bug was fixed where the sgi hotplug driver was removing the slot's SSDT table from the ACPI namespace a bit too early in disable_slot(). Also, we now call acpi_bus_start() subsequent to acpi_bus_add(). Signed-off-by: Aaron Young Cc: Greg KH Cc: "Luck, Tony" Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- drivers/pci/hotplug/sgi_hotplug.c | 155 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 148 insertions(+), 7 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c index 5d188c55838..78cf0711d1f 100644 --- a/drivers/pci/hotplug/sgi_hotplug.c +++ b/drivers/pci/hotplug/sgi_hotplug.c @@ -28,6 +28,8 @@ #include #include #include +#include +#include #include "../pci.h" @@ -35,14 +37,17 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("SGI (prarit@sgi.com, dickie@sgi.com, habeck@sgi.com)"); MODULE_DESCRIPTION("SGI Altix Hot Plug PCI Controller Driver"); -#define PCIIO_ASIC_TYPE_TIOCA 4 + +/* SAL call error codes. Keep in sync with prom header io/include/pcibr.h */ #define PCI_SLOT_ALREADY_UP 2 /* slot already up */ #define PCI_SLOT_ALREADY_DOWN 3 /* slot already down */ #define PCI_L1_ERR 7 /* L1 console command error */ #define PCI_EMPTY_33MHZ 15 /* empty 33 MHz bus */ + + +#define PCIIO_ASIC_TYPE_TIOCA 4 #define PCI_L1_QSIZE 128 /* our L1 message buffer size */ #define SN_MAX_HP_SLOTS 32 /* max hotplug slots */ -#define SGI_HOTPLUG_PROM_REV 0x0430 /* Min. required PROM version */ #define SN_SLOT_NAME_SIZE 33 /* size of name string */ /* internal list head */ @@ -227,7 +232,7 @@ static void sn_bus_free_data(struct pci_dev *dev) } static int sn_slot_enable(struct hotplug_slot *bss_hotplug_slot, - int device_num) + int device_num, char **ssdt) { struct slot *slot = bss_hotplug_slot->private; struct pcibus_info *pcibus_info; @@ -240,7 +245,8 @@ static int sn_slot_enable(struct hotplug_slot *bss_hotplug_slot, * Power-on and initialize the slot in the SN * PCI infrastructure. */ - rc = sal_pcibr_slot_enable(pcibus_info, device_num, &resp); + rc = sal_pcibr_slot_enable(pcibus_info, device_num, &resp, ssdt); + if (rc == PCI_SLOT_ALREADY_UP) { dev_dbg(slot->pci_bus->self, "is already active\n"); @@ -335,6 +341,7 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) int func, num_funcs; int new_ppb = 0; int rc; + char *ssdt = NULL; void pcibios_fixup_device_resources(struct pci_dev *); /* Serialize the Linux PCI infrastructure */ @@ -342,14 +349,29 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) /* * Power-on and initialize the slot in the SN - * PCI infrastructure. + * PCI infrastructure. Also, retrieve the ACPI SSDT + * table for the slot (if ACPI capable PROM). */ - rc = sn_slot_enable(bss_hotplug_slot, slot->device_num); + rc = sn_slot_enable(bss_hotplug_slot, slot->device_num, &ssdt); if (rc) { mutex_unlock(&sn_hotplug_mutex); return rc; } + if (ssdt) + ssdt = __va(ssdt); + /* Add the new SSDT for the slot to the ACPI namespace */ + if (SN_ACPI_BASE_SUPPORT() && ssdt) { + acpi_status ret; + + ret = acpi_load_table((struct acpi_table_header *)ssdt); + if (ACPI_FAILURE(ret)) { + printk(KERN_ERR "%s: acpi_load_table failed (0x%x)\n", + __FUNCTION__, ret); + /* try to continue on */ + } + } + num_funcs = pci_scan_slot(slot->pci_bus, PCI_DEVFN(slot->device_num + 1, 0)); if (!num_funcs) { @@ -374,7 +396,10 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) * pdi_host_pcidev_info). */ pcibios_fixup_device_resources(dev); - sn_pci_fixup_slot(dev); + if (SN_ACPI_BASE_SUPPORT()) + sn_acpi_slot_fixup(dev); + else + sn_io_slot_fixup(dev); if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { unsigned char sec_bus; pci_read_config_byte(dev, PCI_SECONDARY_BUS, @@ -388,6 +413,63 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot) } } + /* + * Add the slot's devices to the ACPI infrastructure */ + if (SN_ACPI_BASE_SUPPORT() && ssdt) { + unsigned long adr; + struct acpi_device *pdevice; + struct acpi_device *device; + acpi_handle phandle; + acpi_handle chandle = NULL; + acpi_handle rethandle; + acpi_status ret; + + phandle = PCI_CONTROLLER(slot->pci_bus)->acpi_handle; + + if (acpi_bus_get_device(phandle, &pdevice)) { + dev_dbg(slot->pci_bus->self, + "no parent device, assuming NULL\n"); + pdevice = NULL; + } + + /* + * Walk the rootbus node's immediate children looking for + * the slot's device node(s). There can be more than + * one for multifunction devices. + */ + for (;;) { + rethandle = NULL; + ret = acpi_get_next_object(ACPI_TYPE_DEVICE, + phandle, chandle, + &rethandle); + + if (ret == AE_NOT_FOUND || rethandle == NULL) + break; + + chandle = rethandle; + + ret = acpi_evaluate_integer(chandle, METHOD_NAME__ADR, + NULL, &adr); + + if (ACPI_SUCCESS(ret) && + (adr>>16) == (slot->device_num + 1)) { + + ret = acpi_bus_add(&device, pdevice, chandle, + ACPI_BUS_TYPE_DEVICE); + if (ACPI_FAILURE(ret)) { + printk(KERN_ERR "%s: acpi_bus_add " + "failed (0x%x) for slot %d " + "func %d\n", __FUNCTION__, + ret, (int)(adr>>16), + (int)(adr&0xffff)); + /* try to continue on */ + } else { + acpi_bus_start(device); + } + } + } + } + /* Call the driver for the new device */ pci_bus_add_devices(slot->pci_bus); /* Call the drivers for the new devices subordinate to PPB */ @@ -412,6 +494,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot) struct pci_dev *dev; int func; int rc; + acpi_owner_id ssdt_id = 0; /* Acquire update access to the bus */ mutex_lock(&sn_hotplug_mutex); @@ -422,6 +505,52 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot) if (rc) goto leaving; + /* free the ACPI resources for the slot */ + if (SN_ACPI_BASE_SUPPORT() && + PCI_CONTROLLER(slot->pci_bus)->acpi_handle) { + unsigned long adr; + struct acpi_device *device; + acpi_handle phandle; + acpi_handle chandle = NULL; + acpi_handle rethandle; + acpi_status ret; + + /* Get the rootbus node pointer */ + phandle = PCI_CONTROLLER(slot->pci_bus)->acpi_handle; + + /* + * Walk the rootbus node's immediate children looking for + * the slot's device node(s). There can be more than + * one for multifunction devices. + */ + for (;;) { + rethandle = NULL; + ret = acpi_get_next_object(ACPI_TYPE_DEVICE, + phandle, chandle, + &rethandle); + + if (ret == AE_NOT_FOUND || rethandle == NULL) + break; + + chandle = rethandle; + + ret = acpi_evaluate_integer(chandle, + METHOD_NAME__ADR, + NULL, &adr); + if (ACPI_SUCCESS(ret) && + (adr>>16) == (slot->device_num + 1)) { + /* retain the owner id */ + acpi_get_id(chandle, &ssdt_id); + + ret = acpi_bus_get_device(chandle, + &device); + if (ACPI_SUCCESS(ret)) + acpi_bus_trim(device, 1); + } + } + + } + /* Free the SN resources assigned to the Linux device.*/ for (func = 0; func < 8; func++) { dev = pci_get_slot(slot->pci_bus, @@ -434,6 +563,18 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot) } } + /* Remove the SSDT for the slot from the ACPI namespace */ + if (SN_ACPI_BASE_SUPPORT() && ssdt_id) { + acpi_status ret; + ret = acpi_unload_table_id(ssdt_id); + if (ACPI_FAILURE(ret)) { + printk(KERN_ERR "%s: acpi_unload_table_id " + "failed (0x%x) for id %d\n", + __FUNCTION__, ret, ssdt_id); + /* try to continue on */ + } + } + /* free the collected sysdata pointers */ sn_bus_free_sysdata(); -- cgit v1.2.3 From 33dced2ea5ed03dda10e7f9f41f0910f32e02eaa Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Wed, 7 Feb 2007 18:18:45 +0100 Subject: ide: add Toshiba TC86C001 IDE driver (take 2) This is the driver for the Toshiba TC86C001 GOKU-S PCI IDE controller, completely reworked from the original brain-damaged Toshiba's 2.4 version. This single channel UltraDMA/66 controller is very simple in programming, yet Toshiba managed to plant many interesting bugs in it. The particularly nasty "limitation 5" (as they call the errata) caused me to abuse the IDE core in a possibly most interesting way so far. However, this is still better than the #ifdef mess in drivers/ide/ide-io.c that the original version included (well, it had much more mess)... Signed-off-by: Sergei Shtylyov Acked-by: Alan Cox Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/pci/quirks.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index c913ea4e545..40c1825c8b9 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1481,6 +1481,24 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); +/* + * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size + * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes. + * Re-allocate the region if needed... + */ +static void __init quirk_tc86c001_ide(struct pci_dev *dev) +{ + struct resource *r = &dev->resource[0]; + + if (r->start & 0x8) { + r->start = 0; + r->end = 0xf; + } +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2, + PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE, + quirk_tc86c001_ide); + static void __devinit quirk_netmos(struct pci_dev *dev) { unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4; -- cgit v1.2.3 From 725522b5453dd680412f2b6463a988e4fd148757 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 15 Jan 2007 11:50:02 -0800 Subject: PCI: add the sysfs driver name to all modules This adds the module name to all PCI drivers, if they are built into the kernel or not. It will show up in /sys/modules/MODULE_NAME/drivers/ It also fixes up the IDE core, which was calling __pci_register_driver() directly. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-driver.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 92d5e8db0de..35876688526 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -422,7 +422,8 @@ static struct kobj_type pci_driver_kobj_type = { * If no error occurred, the driver remains registered even if * no device was claimed during registration. */ -int __pci_register_driver(struct pci_driver *drv, struct module *owner) +int __pci_register_driver(struct pci_driver *drv, struct module *owner, + const char *mod_name) { int error; @@ -430,6 +431,7 @@ int __pci_register_driver(struct pci_driver *drv, struct module *owner) drv->driver.name = drv->name; drv->driver.bus = &pci_bus_type; drv->driver.owner = owner; + drv->driver.mod_name = mod_name; drv->driver.kobj.ktype = &pci_driver_kobj_type; if (pci_multithread_probe) -- cgit v1.2.3 From 07eddf3d597f2d009a37a4e8c7c32a1ffe992f3e Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 29 Nov 2006 13:53:10 -0800 Subject: PCI: check szhi when sz is 0 when 64 bit iomem bigger than 4G For pci mem resource that size is bigger than 4G, the sz returned by pc_size will be 0. So that resource is skipped, and register contained hi address will be treated as another 32bit resource. We need to use sz64 and pci_sz64 for 64 bit resource for clear logical. Typical usages for this: Opteron system with co-processor and the co-processor could take more than 4G RAM as pre-fetchable mem resource. Signed-off-by: Yinghai Lu Cc: Andi Kleen Cc: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- drivers/pci/probe.c | 69 +++++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 56 insertions(+), 13 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 0e0401dd02c..9d778842864 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -144,6 +144,32 @@ static u32 pci_size(u32 base, u32 maxbase, u32 mask) return size; } +static u64 pci_size64(u64 base, u64 maxbase, u64 mask) +{ + u64 size = mask & maxbase; /* Find the significant bits */ + if (!size) + return 0; + + /* Get the lowest of them to find the decode size, and + from that the extent. */ + size = (size & ~(size-1)) - 1; + + /* base == maxbase can be valid only if the BAR has + already been programmed with all 1s. */ + if (base == maxbase && ((base | size) & mask) != mask) + return 0; + + return size; +} + +static inline int is_64bit_memory(u32 mask) +{ + if ((mask & (PCI_BASE_ADDRESS_SPACE|PCI_BASE_ADDRESS_MEM_TYPE_MASK)) == + (PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64)) + return 1; + return 0; +} + static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) { unsigned int pos, reg, next; @@ -151,6 +177,10 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) struct resource *res; for(pos=0; posresource[pos]; res->name = pci_name(dev); @@ -163,9 +193,16 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) continue; if (l == 0xffffffff) l = 0; - if ((l & PCI_BASE_ADDRESS_SPACE) == PCI_BASE_ADDRESS_SPACE_MEMORY) { + raw_sz = sz; + if ((l & PCI_BASE_ADDRESS_SPACE) == + PCI_BASE_ADDRESS_SPACE_MEMORY) { sz = pci_size(l, sz, (u32)PCI_BASE_ADDRESS_MEM_MASK); - if (!sz) + /* + * For 64bit prefetchable memory sz could be 0, if the + * real size is bigger than 4G, so we need to check + * szhi for that. + */ + if (!is_64bit_memory(l) && !sz) continue; res->start = l & PCI_BASE_ADDRESS_MEM_MASK; res->flags |= l & ~PCI_BASE_ADDRESS_MEM_MASK; @@ -178,30 +215,36 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) } res->end = res->start + (unsigned long) sz; res->flags |= pci_calc_resource_flags(l); - if ((l & (PCI_BASE_ADDRESS_SPACE | PCI_BASE_ADDRESS_MEM_TYPE_MASK)) - == (PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64)) { + if (is_64bit_memory(l)) { u32 szhi, lhi; + pci_read_config_dword(dev, reg+4, &lhi); pci_write_config_dword(dev, reg+4, ~0); pci_read_config_dword(dev, reg+4, &szhi); pci_write_config_dword(dev, reg+4, lhi); - szhi = pci_size(lhi, szhi, 0xffffffff); + sz64 = ((u64)szhi << 32) | raw_sz; + l64 = ((u64)lhi << 32) | l; + sz64 = pci_size64(l64, sz64, PCI_BASE_ADDRESS_MEM_MASK); next++; #if BITS_PER_LONG == 64 - res->start |= ((unsigned long) lhi) << 32; - res->end = res->start + sz; - if (szhi) { - /* This BAR needs > 4GB? Wow. */ - res->end |= (unsigned long)szhi<<32; + if (!sz64) { + res->start = 0; + res->end = 0; + res->flags = 0; + continue; } + res->start = l64 & PCI_BASE_ADDRESS_MEM_MASK; + res->end = res->start + sz64; #else - if (szhi) { - printk(KERN_ERR "PCI: Unable to handle 64-bit BAR for device %s\n", pci_name(dev)); + if (sz64 > 0x100000000ULL) { + printk(KERN_ERR "PCI: Unable to handle 64-bit " + "BAR for device %s\n", pci_name(dev)); res->start = 0; res->flags = 0; } else if (lhi) { /* 64-bit wide address, treat as disabled */ - pci_write_config_dword(dev, reg, l & ~(u32)PCI_BASE_ADDRESS_MEM_MASK); + pci_write_config_dword(dev, reg, + l & ~(u32)PCI_BASE_ADDRESS_MEM_MASK); pci_write_config_dword(dev, reg+4, 0); res->start = 0; res->end = sz; -- cgit v1.2.3 From 924b08f3ff12eb0e8ecd9e9a9b6a5b884a495c23 Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Mon, 18 Dec 2006 10:27:45 +0900 Subject: PCI : remove too specialized __pci_enable_device for default resume Original patch was posted as "PCI : Move pci_fixup_device and is_enabled". This 1 of 3 patches does: - reverts small part of Inaky's patch (remove __pci_enable_device) This change will be recovered by 3rd patch. - temporarily remove pci_fixup_device. This change will be recovered by 2nd patch. Signed-off-by: Kenji Kaneshige Signed-off-by: Hidetoshi Seto Cc: Inaky Perez-Gonzalez Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-driver.c | 2 +- drivers/pci/pci.c | 23 ----------------------- drivers/pci/pci.h | 1 - 3 files changed, 1 insertion(+), 25 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 92d5e8db0de..1ec546d3d53 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -325,7 +325,7 @@ static int pci_default_resume(struct pci_dev *pci_dev) pci_restore_state(pci_dev); /* if the device was enabled before suspend, reenable */ if (atomic_read(&pci_dev->enable_cnt)) - retval = __pci_enable_device(pci_dev); + retval = pci_enable_device(pci_dev); /* if the device was busmaster before the suspend, make it busmaster again */ if (pci_dev->is_busmaster) pci_set_master(pci_dev); diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 206c834d263..d20d3983bbd 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -700,29 +700,6 @@ pci_enable_device_bars(struct pci_dev *dev, int bars) return 0; } -/** - * __pci_enable_device - Initialize device before it's used by a driver. - * @dev: PCI device to be initialized - * - * Initialize device before it's used by a driver. Ask low-level code - * to enable I/O and memory. Wake up the device if it was suspended. - * Beware, this function can fail. - * - * Note this function is a backend and is not supposed to be called by - * normal code, use pci_enable_device() instead. - */ -int -__pci_enable_device(struct pci_dev *dev) -{ - int err; - - err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1); - if (err) - return err; - pci_fixup_device(pci_fixup_enable, dev); - return 0; -} - /** * pci_enable_device - Initialize device before it's used by a driver. * @dev: PCI device to be initialized diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 398852f526a..6bf327db5c5 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -1,6 +1,5 @@ /* Functions internal to the PCI core code */ -extern int __must_check __pci_enable_device(struct pci_dev *); extern int pci_uevent(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size); extern int pci_create_sysfs_dev_files(struct pci_dev *pdev); -- cgit v1.2.3 From 9fb625c3cc3731097a142ecae79a0369fb854c2d Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Mon, 18 Dec 2006 10:28:43 +0900 Subject: PCI : Move pci_fixup_device and is_enabled (originally intended change) Original patch was posted as "PCI : Move pci_fixup_device and is_enabled". This 2 of 3 patches does: - Move pci_fixup_device and enable_cnt (originally intended change) - relocate pci_fixup_device (recover latter change of 1st patch) Signed-off-by: Kenji Kaneshige Signed-off-by: Hidetoshi Seto Cc: Inaky Perez-Gonzalez Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index d20d3983bbd..212acd2e1a8 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -682,22 +682,28 @@ pci_restore_state(struct pci_dev *dev) * @bars: bitmask of BAR's that must be configured * * Initialize device before it's used by a driver. Ask low-level code - * to enable selected I/O and memory resources. Wake up the device if it + * to enable selected I/O and memory resources. Wake up the device if it * was suspended. Beware, this function can fail. */ - int pci_enable_device_bars(struct pci_dev *dev, int bars) { int err; + if (atomic_add_return(1, &dev->enable_cnt) > 1) + return 0; /* already enabled */ + err = pci_set_power_state(dev, PCI_D0); if (err < 0 && err != -EIO) - return err; + goto err_out; err = pcibios_enable_device(dev, bars); if (err < 0) - return err; - return 0; + goto err_out; + pci_fixup_device(pci_fixup_enable, dev); + +err_out: + atomic_dec(&dev->enable_cnt); + return err; } /** @@ -713,13 +719,7 @@ pci_enable_device_bars(struct pci_dev *dev, int bars) */ int pci_enable_device(struct pci_dev *dev) { - int result; - if (atomic_add_return(1, &dev->enable_cnt) > 1) - return 0; /* already enabled */ - result = __pci_enable_device(dev); - if (result < 0) - atomic_dec(&dev->enable_cnt); - return result; + return pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1); } /** -- cgit v1.2.3 From 38cc13022ed3cea949722d5a6f49025da82c9fd0 Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Mon, 18 Dec 2006 10:30:00 +0900 Subject: PCI : add extremely specialized __pci_reenable_device for default resume Original patch was posted as "PCI : Move pci_fixup_device and is_enabled". This 3 of 3 patches does: - add __pci_reenable_device (recover former change of 1st patch) Signed-off-by: Kenji Kaneshige Signed-off-by: Hidetoshi Seto Cc: Inaky Perez-Gonzalez Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci-driver.c | 3 +-- drivers/pci/pci.c | 41 ++++++++++++++++++++++++++++++++--------- drivers/pci/pci.h | 1 + 3 files changed, 34 insertions(+), 11 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 1ec546d3d53..dd2da9b6b11 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -324,8 +324,7 @@ static int pci_default_resume(struct pci_dev *pci_dev) /* restore the PCI config space */ pci_restore_state(pci_dev); /* if the device was enabled before suspend, reenable */ - if (atomic_read(&pci_dev->enable_cnt)) - retval = pci_enable_device(pci_dev); + retval = __pci_reenable_device(pci_dev); /* if the device was busmaster before the suspend, make it busmaster again */ if (pci_dev->is_busmaster) pci_set_master(pci_dev); diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 212acd2e1a8..287b685aaa5 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -676,6 +676,36 @@ pci_restore_state(struct pci_dev *dev) return 0; } +static int do_pci_enable_device(struct pci_dev *dev, int bars) +{ + int err; + + err = pci_set_power_state(dev, PCI_D0); + if (err < 0 && err != -EIO) + return err; + err = pcibios_enable_device(dev, bars); + if (err < 0) + return err; + pci_fixup_device(pci_fixup_enable, dev); + + return 0; +} + +/** + * __pci_reenable_device - Resume abandoned device + * @dev: PCI device to be resumed + * + * Note this function is a backend of pci_default_resume and is not supposed + * to be called by normal code, write proper resume handler and use it instead. + */ +int +__pci_reenable_device(struct pci_dev *dev) +{ + if (atomic_read(&dev->enable_cnt)) + return do_pci_enable_device(dev, (1 << PCI_NUM_RESOURCES) - 1); + return 0; +} + /** * pci_enable_device_bars - Initialize some of a device for use * @dev: PCI device to be initialized @@ -693,16 +723,9 @@ pci_enable_device_bars(struct pci_dev *dev, int bars) if (atomic_add_return(1, &dev->enable_cnt) > 1) return 0; /* already enabled */ - err = pci_set_power_state(dev, PCI_D0); - if (err < 0 && err != -EIO) - goto err_out; - err = pcibios_enable_device(dev, bars); + err = do_pci_enable_device(dev, bars); if (err < 0) - goto err_out; - pci_fixup_device(pci_fixup_enable, dev); - -err_out: - atomic_dec(&dev->enable_cnt); + atomic_dec(&dev->enable_cnt); return err; } diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 6bf327db5c5..783e81f81f5 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -1,5 +1,6 @@ /* Functions internal to the PCI core code */ +extern int __must_check __pci_reenable_device(struct pci_dev *); extern int pci_uevent(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size); extern int pci_create_sysfs_dev_files(struct pci_dev *pdev); -- cgit v1.2.3 From c87deff776feacd05a7411097e8c8c57e549e638 Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Mon, 18 Dec 2006 10:31:06 +0900 Subject: PCI : Add selected_regions funcs This patch adds the following changes into generic PCI code especially for PCI legacy I/O port free drivers. - Added new pci_request_selected_regions() and pci_release_selected_regions() for PCI legacy I/O port free drivers in order to request/release only the selected regions. - Added helper routine pci_select_bars() which makes proper mask of BARs from the specified resource type. This would be very helpful for users of pci_enable_device_bars(). Signed-off-by: Kenji Kaneshige Signed-off-by: Hidetoshi Seto Cc: Inaky Perez-Gonzalez Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci.c | 80 +++++++++++++++++++++++++++++++++++++++++++------------ 1 file changed, 63 insertions(+), 17 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 287b685aaa5..599978631a4 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -921,6 +921,47 @@ err_out: return -EBUSY; } +/** + * pci_release_selected_regions - Release selected PCI I/O and memory resources + * @pdev: PCI device whose resources were previously reserved + * @bars: Bitmask of BARs to be released + * + * Release selected PCI I/O and memory resources previously reserved. + * Call this function only after all use of the PCI regions has ceased. + */ +void pci_release_selected_regions(struct pci_dev *pdev, int bars) +{ + int i; + + for (i = 0; i < 6; i++) + if (bars & (1 << i)) + pci_release_region(pdev, i); +} + +/** + * pci_request_selected_regions - Reserve selected PCI I/O and memory resources + * @pdev: PCI device whose resources are to be reserved + * @bars: Bitmask of BARs to be requested + * @res_name: Name to be associated with resource + */ +int pci_request_selected_regions(struct pci_dev *pdev, int bars, + const char *res_name) +{ + int i; + + for (i = 0; i < 6; i++) + if (bars & (1 << i)) + if(pci_request_region(pdev, i, res_name)) + goto err_out; + return 0; + +err_out: + while(--i >= 0) + if (bars & (1 << i)) + pci_release_region(pdev, i); + + return -EBUSY; +} /** * pci_release_regions - Release reserved PCI I/O and memory resources @@ -933,10 +974,7 @@ err_out: void pci_release_regions(struct pci_dev *pdev) { - int i; - - for (i = 0; i < 6; i++) - pci_release_region(pdev, i); + pci_release_selected_regions(pdev, (1 << 6) - 1); } /** @@ -954,18 +992,7 @@ void pci_release_regions(struct pci_dev *pdev) */ int pci_request_regions(struct pci_dev *pdev, const char *res_name) { - int i; - - for (i = 0; i < 6; i++) - if(pci_request_region(pdev, i, res_name)) - goto err_out; - return 0; - -err_out: - while(--i >= 0) - pci_release_region(pdev, i); - - return -EBUSY; + return pci_request_selected_regions(pdev, ((1 << 6) - 1), res_name); } /** @@ -1148,7 +1175,23 @@ pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) return 0; } #endif - + +/** + * pci_select_bars - Make BAR mask from the type of resource + * @pdev: the PCI device for which BAR mask is made + * @flags: resource type mask to be selected + * + * This helper routine makes bar mask from the type of resource. + */ +int pci_select_bars(struct pci_dev *dev, unsigned long flags) +{ + int i, bars = 0; + for (i = 0; i < PCI_NUM_RESOURCES; i++) + if (pci_resource_flags(dev, i) & flags) + bars |= (1 << i); + return bars; +} + static int __devinit pci_init(void) { struct pci_dev *dev = NULL; @@ -1197,6 +1240,8 @@ EXPORT_SYMBOL(pci_release_regions); EXPORT_SYMBOL(pci_request_regions); EXPORT_SYMBOL(pci_release_region); EXPORT_SYMBOL(pci_request_region); +EXPORT_SYMBOL(pci_release_selected_regions); +EXPORT_SYMBOL(pci_request_selected_regions); EXPORT_SYMBOL(pci_set_master); EXPORT_SYMBOL(pci_set_mwi); EXPORT_SYMBOL(pci_clear_mwi); @@ -1205,6 +1250,7 @@ EXPORT_SYMBOL(pci_set_dma_mask); EXPORT_SYMBOL(pci_set_consistent_dma_mask); EXPORT_SYMBOL(pci_assign_resource); EXPORT_SYMBOL(pci_find_parent_resource); +EXPORT_SYMBOL(pci_select_bars); EXPORT_SYMBOL(pci_set_power_state); EXPORT_SYMBOL(pci_save_state); -- cgit v1.2.3 From c30ca1db39cecade07143112ecfac09ec6b08e3f Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Tue, 19 Dec 2006 05:13:15 +0100 Subject: PCI: quirks.c: cleanup This patch contains the following cleanups: - move all EXPORT_SYMBOL's directly below the code they are exporting - move all DECLARE_PCI_FIXUP_*'s directly below the functions they are calling Signed-off-by: Adrian Bunk Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci.c | 4 ---- drivers/pci/quirks.c | 42 +++++++++++++++++------------------------- 2 files changed, 17 insertions(+), 29 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 599978631a4..caeeacc7b07 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1257,7 +1257,3 @@ EXPORT_SYMBOL(pci_save_state); EXPORT_SYMBOL(pci_restore_state); EXPORT_SYMBOL(pci_enable_wake); -/* Quirk info */ - -EXPORT_SYMBOL(isa_dma_bridge_buggy); -EXPORT_SYMBOL(pci_pci_problems); diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index c913ea4e545..1d04ca02dd0 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -61,7 +61,8 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_p This appears to be BIOS not version dependent. So presumably there is a chipset level fix */ -int isa_dma_bridge_buggy; /* Exported */ +int isa_dma_bridge_buggy; +EXPORT_SYMBOL(isa_dma_bridge_buggy); static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev) { @@ -83,6 +84,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_d DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs ); int pci_pci_problems; +EXPORT_SYMBOL(pci_pci_problems); /* * Chipsets where PCI->PCI transfers vanish or hang @@ -94,6 +96,8 @@ static void __devinit quirk_nopcipci(struct pci_dev *dev) pci_pci_problems |= PCIPCI_FAIL; } } +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci ); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci ); static void __devinit quirk_nopciamd(struct pci_dev *dev) { @@ -105,9 +109,6 @@ static void __devinit quirk_nopciamd(struct pci_dev *dev) pci_pci_problems |= PCIAGP_FAIL; } } - -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci ); -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci ); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd ); /* @@ -1136,6 +1137,14 @@ static void quirk_sis_96x_smbus(struct pci_dev *dev) pci_write_config_byte(dev, 0x77, val & ~0x10); } } +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus ); /* * ... This is further complicated by the fact that some SiS96x south @@ -1173,6 +1182,8 @@ static void quirk_sis_503(struct pci_dev *dev) dev->device = devid; quirk_sis_96x_smbus(dev); } +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 ); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 ); static void __init quirk_sis_96x_compatible(struct pci_dev *dev) { @@ -1185,8 +1196,6 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_650, quirk_sis_96x_ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_651, quirk_sis_96x_compatible ); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_735, quirk_sis_96x_compatible ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 ); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 ); /* * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller * and MC97 modem controller are disabled when a second PCI soundcard is @@ -1217,21 +1226,8 @@ static void asus_hides_ac97_lpc(struct pci_dev *dev) } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc ); - - -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus ); - DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc ); - -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus ); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus ); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus ); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus ); - #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE) /* @@ -1276,7 +1272,6 @@ static void quirk_jmicron_dualfn(struct pci_dev *pdev) break; } } - DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, quirk_jmicron_dualfn); DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, quirk_jmicron_dualfn); @@ -1420,6 +1415,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_intel_ide_co int pcie_mch_quirk; +EXPORT_SYMBOL(pcie_mch_quirk); static void __devinit quirk_pcie_mch(struct pci_dev *pdev) { @@ -1646,6 +1642,7 @@ void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) } pci_do_fixups(dev, start, end); } +EXPORT_SYMBOL(pci_fixup_device); /* Enable 1k I/O space granularity on the Intel P64H2 */ static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev) @@ -1788,8 +1785,3 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, quirk_nvidia_ck804_msi_ht_cap); #endif /* CONFIG_PCI_MSI */ - -EXPORT_SYMBOL(pcie_mch_quirk); -#ifdef CONFIG_HOTPLUG -EXPORT_SYMBOL(pci_fixup_device); -#endif -- cgit v1.2.3 From fd9b37cc4e32533214f77b34ea03ee85f6e0a4d2 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Fri, 17 Nov 2006 15:21:45 +0100 Subject: PCI: remove pci_find_device_reverse() This patch removes the no longer used pci_find_device_reverse(). Signed-off-by: Adrian Bunk Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/pci/search.c | 38 -------------------------------------- 1 file changed, 38 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/search.c b/drivers/pci/search.c index b2653c4afe9..ff98eaddaa7 100644 --- a/drivers/pci/search.c +++ b/drivers/pci/search.c @@ -357,43 +357,6 @@ exit: return dev; } -/** - * pci_find_device_reverse - begin or continue searching for a PCI device by vendor/device id - * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids - * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids - * @from: Previous PCI device found in search, or %NULL for new search. - * - * Iterates through the list of known PCI devices in the reverse order of - * pci_find_device(). - * If a PCI device is found with a matching @vendor and @device, a pointer to - * its device structure is returned. Otherwise, %NULL is returned. - * A new search is initiated by passing %NULL as the @from argument. - * Otherwise if @from is not %NULL, searches continue from previous device - * on the global list. - */ -struct pci_dev * -pci_find_device_reverse(unsigned int vendor, unsigned int device, const struct pci_dev *from) -{ - struct list_head *n; - struct pci_dev *dev; - - WARN_ON(in_interrupt()); - down_read(&pci_bus_sem); - n = from ? from->global_list.prev : pci_devices.prev; - - while (n && (n != &pci_devices)) { - dev = pci_dev_g(n); - if ((vendor == PCI_ANY_ID || dev->vendor == vendor) && - (device == PCI_ANY_ID || dev->device == device)) - goto exit; - n = n->prev; - } - dev = NULL; -exit: - up_read(&pci_bus_sem); - return dev; -} - /** * pci_get_class - begin or continue searching for a PCI device by class * @class: search for a PCI device with this class designation @@ -469,7 +432,6 @@ EXPORT_SYMBOL(pci_dev_present); EXPORT_SYMBOL(pci_find_present); EXPORT_SYMBOL(pci_find_device); -EXPORT_SYMBOL(pci_find_device_reverse); EXPORT_SYMBOL(pci_find_slot); /* For boot time work */ EXPORT_SYMBOL(pci_find_bus); -- cgit v1.2.3 From a0b1725720d9a023a1dee129234f5972056038c6 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Thu, 21 Dec 2006 17:01:02 -0800 Subject: pciehp: cleanup init_slot() This patch cleans up init_slots() in pciehp_core.c based on pcihp_skeleton.c. This has no functional change. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp.h | 10 +---- drivers/pci/hotplug/pciehp_core.c | 90 +++++++++++++++------------------------ 2 files changed, 37 insertions(+), 63 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 4fb12fcda56..6a2f427768c 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -50,7 +50,7 @@ extern int pciehp_force; #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg) #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) - +#define SLOT_NAME_SIZE 10 struct slot { struct slot *next; u8 bus; @@ -63,6 +63,7 @@ struct slot { struct hpc_ops *hpc_ops; struct hotplug_slot *hotplug_slot; struct list_head slot_list; + char name[SLOT_NAME_SIZE]; }; struct event_info { @@ -233,13 +234,6 @@ static inline int wait_for_ctrl_irq(struct controller *ctrl) return retval; } -#define SLOT_NAME_SIZE 10 - -static inline void make_slot_name(char *buffer, int buffer_size, struct slot *slot) -{ - snprintf(buffer, buffer_size, "%04d_%04d", slot->bus, slot->number); -} - enum php_ctlr_type { PCI, ISA, diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index f13f31323e8..051d228e634 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -98,101 +98,81 @@ static void release_slot(struct hotplug_slot *hotplug_slot) dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); kfree(slot->hotplug_slot->info); - kfree(slot->hotplug_slot->name); kfree(slot->hotplug_slot); kfree(slot); } +static void make_slot_name(struct slot *slot) +{ + snprintf(slot->hotplug_slot->name, SLOT_NAME_SIZE, "%04d_%04d", + slot->bus, slot->number); +} + static int init_slots(struct controller *ctrl) { struct slot *slot; - struct hpc_ops *hpc_ops; struct hotplug_slot *hotplug_slot; - struct hotplug_slot_info *hotplug_slot_info; - u8 number_of_slots; - u8 slot_device; - u32 slot_number; - int result = -ENOMEM; + struct hotplug_slot_info *info; + int retval = -ENOMEM; + int i; - number_of_slots = ctrl->num_slots; - slot_device = ctrl->slot_device_offset; - slot_number = ctrl->first_slot; - - while (number_of_slots) { + for (i = 0; i < ctrl->num_slots; i++) { slot = kzalloc(sizeof(*slot), GFP_KERNEL); if (!slot) goto error; - slot->hotplug_slot = - kzalloc(sizeof(*(slot->hotplug_slot)), - GFP_KERNEL); - if (!slot->hotplug_slot) + hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL); + if (!hotplug_slot) goto error_slot; - hotplug_slot = slot->hotplug_slot; + slot->hotplug_slot = hotplug_slot; - hotplug_slot->info = - kzalloc(sizeof(*(hotplug_slot->info)), - GFP_KERNEL); - if (!hotplug_slot->info) + info = kzalloc(sizeof(*info), GFP_KERNEL); + if (!info) goto error_hpslot; - hotplug_slot_info = hotplug_slot->info; - hotplug_slot->name = kmalloc(SLOT_NAME_SIZE, GFP_KERNEL); - if (!hotplug_slot->name) - goto error_info; + hotplug_slot->info = info; - slot->ctrl = ctrl; - slot->bus = ctrl->slot_bus; - slot->device = slot_device; - slot->hpc_ops = hpc_ops = ctrl->hpc_ops; + hotplug_slot->name = slot->name; + slot->hp_slot = i; + slot->ctrl = ctrl; + slot->bus = ctrl->pci_dev->subordinate->number; + slot->device = ctrl->slot_device_offset + i; + slot->hpc_ops = ctrl->hpc_ops; slot->number = ctrl->first_slot; - slot->hp_slot = slot_device - ctrl->slot_device_offset; /* register this slot with the hotplug pci core */ hotplug_slot->private = slot; hotplug_slot->release = &release_slot; - make_slot_name(hotplug_slot->name, SLOT_NAME_SIZE, slot); + make_slot_name(slot); hotplug_slot->ops = &pciehp_hotplug_slot_ops; - hpc_ops->get_power_status(slot, - &(hotplug_slot_info->power_status)); - hpc_ops->get_attention_status(slot, - &(hotplug_slot_info->attention_status)); - hpc_ops->get_latch_status(slot, - &(hotplug_slot_info->latch_status)); - hpc_ops->get_adapter_status(slot, - &(hotplug_slot_info->adapter_status)); + get_power_status(hotplug_slot, &info->power_status); + get_attention_status(hotplug_slot, &info->attention_status); + get_latch_status(hotplug_slot, &info->latch_status); + get_adapter_status(hotplug_slot, &info->adapter_status); dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x " - "slot_device_offset=%x\n", - slot->bus, slot->device, slot->hp_slot, slot->number, - ctrl->slot_device_offset); - result = pci_hp_register(hotplug_slot); - if (result) { - err ("pci_hp_register failed with error %d\n", result); - goto error_name; + "slot_device_offset=%x\n", slot->bus, slot->device, + slot->hp_slot, slot->number, ctrl->slot_device_offset); + retval = pci_hp_register(hotplug_slot); + if (retval) { + err ("pci_hp_register failed with error %d\n", retval); + goto error_info; } slot->next = ctrl->slot; ctrl->slot = slot; - - number_of_slots--; - slot_device++; - slot_number += ctrl->slot_num_inc; } return 0; - -error_name: - kfree(hotplug_slot->name); error_info: - kfree(hotplug_slot_info); + kfree(info); error_hpslot: kfree(hotplug_slot); error_slot: kfree(slot); error: - return result; + return retval; } -- cgit v1.2.3 From 2410fa4eaec4133f9fa8968f277ddb28b89b92b3 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Thu, 21 Dec 2006 17:01:03 -0800 Subject: pciehp: cleanup slot list This patch cleans up slot list handling (use list_head). This has no functional change. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp.h | 19 +++++++------------ drivers/pci/hotplug/pciehp_core.c | 25 ++++++++++--------------- 2 files changed, 17 insertions(+), 27 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 6a2f427768c..d07ac45f127 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -52,7 +52,6 @@ extern int pciehp_force; #define SLOT_NAME_SIZE 10 struct slot { - struct slot *next; u8 bus; u8 device; u32 number; @@ -99,6 +98,7 @@ struct controller { int slot_num_inc; /* 1 or -1 */ struct pci_dev *pci_dev; struct pci_bus *pci_bus; + struct list_head slot_list; struct event_info event_queue[MAX_EVENTS]; struct slot *slot; struct hpc_ops *hpc_ops; @@ -198,20 +198,15 @@ extern struct controller *pciehp_ctrl_list; static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device) { - struct slot *p_slot, *tmp_slot = NULL; - - p_slot = ctrl->slot; + struct slot *slot; - while (p_slot && (p_slot->device != device)) { - tmp_slot = p_slot; - p_slot = p_slot->next; - } - if (p_slot == NULL) { - err("ERROR: pciehp_find_slot device=0x%x\n", device); - p_slot = tmp_slot; + list_for_each_entry(slot, &ctrl->slot_list, slot_list) { + if (slot->device == device) + return slot; } - return p_slot; + err("%s: slot (device=0x%x) not found\n", __FUNCTION__, device); + return NULL; } static inline int wait_for_ctrl_irq(struct controller *ctrl) diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index 051d228e634..2ddde79e252 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -160,8 +160,7 @@ static int init_slots(struct controller *ctrl) goto error_info; } - slot->next = ctrl->slot; - ctrl->slot = slot; + list_add(&slot->slot_list, &ctrl->slot_list); } return 0; @@ -175,22 +174,17 @@ error: return retval; } - -static int cleanup_slots (struct controller * ctrl) +static void cleanup_slots(struct controller *ctrl) { - struct slot *old_slot, *next_slot; - - old_slot = ctrl->slot; - ctrl->slot = NULL; + struct list_head *tmp; + struct list_head *next; + struct slot *slot; - while (old_slot) { - next_slot = old_slot->next; - pci_hp_deregister (old_slot->hotplug_slot); - old_slot = next_slot; + list_for_each_safe(tmp, next, &ctrl->slot_list) { + slot = list_entry(tmp, struct slot, slot_list); + list_del(&slot->slot_list); + pci_hp_deregister(slot->hotplug_slot); } - - - return(0); } static int get_ctlr_slot_config(struct controller *ctrl) @@ -368,6 +362,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ err("%s : out of memory\n", __FUNCTION__); goto err_out_none; } + INIT_LIST_HEAD(&ctrl->slot_list); pdev = dev->port; ctrl->pci_dev = pdev; -- cgit v1.2.3 From 48fe39151727db350347e1dba09d71c8ca24207a Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Thu, 21 Dec 2006 17:01:04 -0800 Subject: pciehp: remove unnecessary php_ctlr The struct php_ctlr seems to be only for complicating codes. This patch removes struct php_ctlr and related codes. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp.h | 41 +-- drivers/pci/hotplug/pciehp_core.c | 44 +--- drivers/pci/hotplug/pciehp_ctrl.c | 12 +- drivers/pci/hotplug/pciehp_hpc.c | 517 ++++++++------------------------------ 4 files changed, 120 insertions(+), 494 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index d07ac45f127..202e4967a94 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -70,30 +70,11 @@ struct event_info { u8 hp_slot; }; -typedef u8(*php_intr_callback_t) (u8 hp_slot, void *instance_id); - -struct php_ctlr_state_s { - struct php_ctlr_state_s *pnext; - struct pci_dev *pci_dev; - unsigned int irq; - unsigned long flags; /* spinlock's */ - u32 slot_device_offset; - u32 num_slots; - struct timer_list int_poll_timer; /* Added for poll event */ - php_intr_callback_t attention_button_callback; - php_intr_callback_t switch_change_callback; - php_intr_callback_t presence_change_callback; - php_intr_callback_t power_fault_callback; - void *callback_instance_id; - struct ctrl_reg *creg; /* Ptr to controller register space */ -}; - #define MAX_EVENTS 10 struct controller { struct controller *next; struct mutex crit_sect; /* critical section mutex */ struct mutex ctrl_lock; /* controller lock */ - struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */ int num_slots; /* Number of slots on ctlr */ int slot_num_inc; /* 1 or -1 */ struct pci_dev *pci_dev; @@ -113,6 +94,7 @@ struct controller { u8 ctrlcap; u16 vendor_id; u8 cap_base; + struct timer_list poll_timer; }; #define INT_BUTTON_IGNORE 0 @@ -179,10 +161,10 @@ extern void pciehp_event_stop_thread (void); extern int pciehp_enable_slot (struct slot *slot); extern int pciehp_disable_slot (struct slot *slot); -extern u8 pciehp_handle_attention_button (u8 hp_slot, void *inst_id); -extern u8 pciehp_handle_switch_change (u8 hp_slot, void *inst_id); -extern u8 pciehp_handle_presence_change (u8 hp_slot, void *inst_id); -extern u8 pciehp_handle_power_fault (u8 hp_slot, void *inst_id); +extern u8 pciehp_handle_attention_button(u8 hp_slot, struct controller *ctrl); +extern u8 pciehp_handle_switch_change(u8 hp_slot, struct controller *ctrl); +extern u8 pciehp_handle_presence_change(u8 hp_slot, struct controller *ctrl); +extern u8 pciehp_handle_power_fault(u8 hp_slot, struct controller *ctrl); /* extern void long_delay (int delay); */ /* pci functions */ @@ -229,21 +211,8 @@ static inline int wait_for_ctrl_irq(struct controller *ctrl) return retval; } -enum php_ctlr_type { - PCI, - ISA, - ACPI -}; - int pcie_init(struct controller *ctrl, struct pcie_device *dev); -/* This has no meaning for PCI Express, as there is only 1 slot per port */ -int pcie_get_ctlr_slot_config(struct controller *ctrl, - int *num_ctlr_slots, - int *first_device_num, - int *physical_slot_num, - u8 *ctrlcap); - struct hpc_ops { int (*power_on_slot) (struct slot *slot); int (*power_off_slot) (struct slot *slot); diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index 2ddde79e252..a315685b2d3 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -187,33 +187,6 @@ static void cleanup_slots(struct controller *ctrl) } } -static int get_ctlr_slot_config(struct controller *ctrl) -{ - int num_ctlr_slots; /* Not needed; PCI Express has 1 slot per port*/ - int first_device_num; /* Not needed */ - int physical_slot_num; - u8 ctrlcap; - int rc; - - rc = pcie_get_ctlr_slot_config(ctrl, &num_ctlr_slots, &first_device_num, &physical_slot_num, &ctrlcap); - if (rc) { - err("%s: get_ctlr_slot_config fail for b:d (%x:%x)\n", __FUNCTION__, ctrl->bus, ctrl->device); - return (-1); - } - - ctrl->num_slots = num_ctlr_slots; /* PCI Express has 1 slot per port */ - ctrl->slot_device_offset = first_device_num; - ctrl->first_slot = physical_slot_num; - ctrl->ctrlcap = ctrlcap; - - dbg("%s: bus(0x%x) num_slot(0x%x) 1st_dev(0x%x) psn(0x%x) ctrlcap(%x) for b:d (%x:%x)\n", - __FUNCTION__, ctrl->slot_bus, num_ctlr_slots, first_device_num, physical_slot_num, ctrlcap, - ctrl->bus, ctrl->device); - - return (0); -} - - /* * set_attention_status - Turns the Amber LED for a slot on, off or blink */ @@ -352,8 +325,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ int rc; struct controller *ctrl; struct slot *t_slot; - int first_device_num = 0 ; /* first PCI device number supported by this PCIE */ - int num_ctlr_slots; /* number of slots supported by this HPC */ u8 value; struct pci_dev *pdev; @@ -390,18 +361,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ dbg("%s: ctrl bus=0x%x, device=%x, function=%x, irq=%x\n", __FUNCTION__, ctrl->bus, ctrl->device, ctrl->function, pdev->irq); - /* - * Save configuration headers for this and subordinate PCI buses - */ - - rc = get_ctlr_slot_config(ctrl); - if (rc) { - err(msg_initialization_err, rc); - goto err_out_free_ctrl_bus; - } - first_device_num = ctrl->slot_device_offset; - num_ctlr_slots = ctrl->num_slots; - /* Setup the slot information structures */ rc = init_slots(ctrl); if (rc) { @@ -409,7 +368,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ goto err_out_free_ctrl_slot; } - t_slot = pciehp_find_slot(ctrl, first_device_num); + t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset); /* Finish setting up the hot plug ctrl device */ ctrl->next_event = 0; @@ -445,7 +404,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ err_out_free_ctrl_slot: cleanup_slots(ctrl); -err_out_free_ctrl_bus: kfree(ctrl->pci_bus); err_out_unmap_mmio_region: ctrl->hpc_ops->release_ctlr(ctrl); diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index 372c63e35aa..5bca9212f5e 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c @@ -48,9 +48,8 @@ static inline char *slot_name(struct slot *p_slot) return p_slot->hotplug_slot->name; } -u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id) +u8 pciehp_handle_attention_button(u8 hp_slot, struct controller *ctrl) { - struct controller *ctrl = (struct controller *) inst_id; struct slot *p_slot; u8 rc = 0; u8 getstatus; @@ -101,9 +100,8 @@ u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id) } -u8 pciehp_handle_switch_change(u8 hp_slot, void *inst_id) +u8 pciehp_handle_switch_change(u8 hp_slot, struct controller *ctrl) { - struct controller *ctrl = (struct controller *) inst_id; struct slot *p_slot; u8 rc = 0; u8 getstatus; @@ -143,9 +141,8 @@ u8 pciehp_handle_switch_change(u8 hp_slot, void *inst_id) return rc; } -u8 pciehp_handle_presence_change(u8 hp_slot, void *inst_id) +u8 pciehp_handle_presence_change(u8 hp_slot, struct controller *ctrl) { - struct controller *ctrl = (struct controller *) inst_id; struct slot *p_slot; u8 presence_save, rc = 0; struct event_info *taskInfo; @@ -187,9 +184,8 @@ u8 pciehp_handle_presence_change(u8 hp_slot, void *inst_id) return rc; } -u8 pciehp_handle_power_fault(u8 hp_slot, void *inst_id) +u8 pciehp_handle_power_fault(u8 hp_slot, struct controller *ctrl) { - struct controller *ctrl = (struct controller *) inst_id; struct slot *p_slot; u8 rc = 0; struct event_info *taskInfo; diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 25d3aadfddb..ed901b5c279 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -218,72 +218,50 @@ static int pcie_cap_base = 0; /* Base of the PCI Express capability item struct static spinlock_t hpc_event_lock; DEFINE_DBG_BUFFER /* Debug string buffer for entire HPC defined here */ -static struct php_ctlr_state_s *php_ctlr_list_head; /* HPC state linked list */ static int ctlr_seq_num = 0; /* Controller sequence # */ -static spinlock_t list_lock; -static irqreturn_t pcie_isr(int IRQ, void *dev_id); - -static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int seconds); +static irqreturn_t pcie_isr(int irq, void *dev_id); +static void start_int_poll_timer(struct controller *ctrl, int sec); /* This is the interrupt polling timeout function. */ -static void int_poll_timeout(unsigned long lphp_ctlr) +static void int_poll_timeout(unsigned long data) { - struct php_ctlr_state_s *php_ctlr = (struct php_ctlr_state_s *)lphp_ctlr; + struct controller *ctrl = (struct controller *)data; DBG_ENTER_ROUTINE - if ( !php_ctlr ) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return; - } - /* Poll for interrupt events. regs == NULL => polling */ - pcie_isr( 0, (void *)php_ctlr ); - - init_timer(&php_ctlr->int_poll_timer); + pcie_isr(0, ctrl); + init_timer(&ctrl->poll_timer); if (!pciehp_poll_time) pciehp_poll_time = 2; /* reset timer to poll in 2 secs if user doesn't specify at module installation*/ - start_int_poll_timer(php_ctlr, pciehp_poll_time); - - return; + start_int_poll_timer(ctrl, pciehp_poll_time); } /* This function starts the interrupt polling timer. */ -static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int seconds) +static void start_int_poll_timer(struct controller *ctrl, int sec) { - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return; - } - - if ( ( seconds <= 0 ) || ( seconds > 60 ) ) - seconds = 2; /* Clamp to sane value */ - - php_ctlr->int_poll_timer.function = &int_poll_timeout; - php_ctlr->int_poll_timer.data = (unsigned long)php_ctlr; /* Instance data */ - php_ctlr->int_poll_timer.expires = jiffies + seconds * HZ; - add_timer(&php_ctlr->int_poll_timer); - - return; + /* Clamp to sane value */ + if ((sec <= 0) || (sec > 60)) + sec = 2; + + ctrl->poll_timer.function = &int_poll_timeout; + ctrl->poll_timer.data = (unsigned long)ctrl; + ctrl->poll_timer.expires = jiffies + sec * HZ; + add_timer(&ctrl->poll_timer); } static int pcie_write_cmd(struct slot *slot, u16 cmd) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; int retval = 0; u16 slot_status; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(slot->ctrl->cap_base), slot_status); + retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (retval) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return retval; @@ -295,7 +273,7 @@ static int pcie_write_cmd(struct slot *slot, u16 cmd) dbg("%s : CMD_COMPLETED not clear after 1 sec.\n", __FUNCTION__); } - retval = hp_register_write_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), cmd | CMD_CMPL_INTR_ENABLE); + retval = hp_register_write_word(ctrl->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), cmd | CMD_CMPL_INTR_ENABLE); if (retval) { err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); return retval; @@ -307,19 +285,12 @@ static int pcie_write_cmd(struct slot *slot, u16 cmd) static int hpc_check_lnk_status(struct controller *ctrl) { - struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle; u16 lnk_status; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); - + retval = hp_register_read_word(ctrl->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); if (retval) { err("%s : hp_register_read_word LNK_STATUS failed\n", __FUNCTION__); return retval; @@ -340,20 +311,14 @@ static int hpc_check_lnk_status(struct controller *ctrl) static int hpc_get_attention_status(struct slot *slot, u8 *status) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_ctrl; u8 atten_led_state; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + retval = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (retval) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return retval; @@ -385,27 +350,21 @@ static int hpc_get_attention_status(struct slot *slot, u8 *status) return 0; } -static int hpc_get_power_status(struct slot * slot, u8 *status) +static int hpc_get_power_status(struct slot *slot, u8 *status) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_ctrl; u8 pwr_state; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + retval = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (retval) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return retval; } - dbg("%s: SLOT_CTRL %x value read %x\n", __FUNCTION__, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); + dbg("%s: SLOT_CTRL %x value read %x\n", __FUNCTION__, SLOT_CTRL(ctrl->cap_base), slot_ctrl); pwr_state = (slot_ctrl & PWR_CTRL) >> 10; @@ -428,19 +387,13 @@ static int hpc_get_power_status(struct slot * slot, u8 *status) static int hpc_get_latch_status(struct slot *slot, u8 *status) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_status; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(slot->ctrl->cap_base), slot_status); - + retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (retval) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return retval; @@ -454,20 +407,14 @@ static int hpc_get_latch_status(struct slot *slot, u8 *status) static int hpc_get_adapter_status(struct slot *slot, u8 *status) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_status; u8 card_state; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(slot->ctrl->cap_base), slot_status); - + retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (retval) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return retval; @@ -479,22 +426,16 @@ static int hpc_get_adapter_status(struct slot *slot, u8 *status) return 0; } -static int hpc_query_power_fault(struct slot * slot) +static int hpc_query_power_fault(struct slot *slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_status; u8 pwr_fault; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(slot->ctrl->cap_base), slot_status); - + retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (retval) { err("%s : Cannot check for power fault\n", __FUNCTION__); return retval; @@ -507,24 +448,14 @@ static int hpc_query_power_fault(struct slot * slot) static int hpc_set_attention_status(struct slot *slot, u8 value) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd = 0; u16 slot_ctrl; int rc = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return rc; @@ -556,25 +487,14 @@ static int hpc_set_attention_status(struct slot *slot, u8 value) static void hpc_set_green_led_on(struct slot *slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 slot_ctrl; int rc = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return ; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return ; - } - - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return; @@ -592,25 +512,14 @@ static void hpc_set_green_led_on(struct slot *slot) static void hpc_set_green_led_off(struct slot *slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 slot_ctrl; int rc = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return ; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return ; - } - - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return; @@ -629,25 +538,14 @@ static void hpc_set_green_led_off(struct slot *slot) static void hpc_set_green_led_blink(struct slot *slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 slot_ctrl; int rc = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return ; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return ; - } - - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); - + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return; @@ -664,119 +562,39 @@ static void hpc_set_green_led_blink(struct slot *slot) return; } -int pcie_get_ctlr_slot_config(struct controller *ctrl, - int *num_ctlr_slots, /* number of slots in this HPC; only 1 in PCIE */ - int *first_device_num, /* PCI dev num of the first slot in this PCIE */ - int *physical_slot_num, /* phy slot num of the first slot in this PCIE */ - u8 *ctrlcap) -{ - struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle; - u32 slot_cap; - int rc = 0; - - DBG_ENTER_ROUTINE - - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - *first_device_num = 0; - *num_ctlr_slots = 1; - - rc = hp_register_read_dword(php_ctlr->pci_dev, SLOT_CAP(ctrl->cap_base), slot_cap); - - if (rc) { - err("%s : hp_register_read_dword SLOT_CAP failed\n", __FUNCTION__); - return -1; - } - - *physical_slot_num = slot_cap >> 19; - dbg("%s: PSN %d \n", __FUNCTION__, *physical_slot_num); - - *ctrlcap = slot_cap & 0x0000007f; - - DBG_LEAVE_ROUTINE - return 0; -} - static void hpc_release_ctlr(struct controller *ctrl) { - struct php_ctlr_state_s *php_ctlr = ctrl->hpc_ctlr_handle; - struct php_ctlr_state_s *p, *p_prev; - DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return ; - } - - if (pciehp_poll_mode) { - del_timer(&php_ctlr->int_poll_timer); - } else { - if (php_ctlr->irq) { - free_irq(php_ctlr->irq, ctrl); - php_ctlr->irq = 0; - } - } - if (php_ctlr->pci_dev) - php_ctlr->pci_dev = NULL; - - spin_lock(&list_lock); - p = php_ctlr_list_head; - p_prev = NULL; - while (p) { - if (p == php_ctlr) { - if (p_prev) - p_prev->pnext = p->pnext; - else - php_ctlr_list_head = p->pnext; - break; - } else { - p_prev = p; - p = p->pnext; - } - } - spin_unlock(&list_lock); - - kfree(php_ctlr); + if (pciehp_poll_mode) + del_timer(&ctrl->poll_timer); + else + free_irq(ctrl->pci_dev->irq, ctrl); DBG_LEAVE_ROUTINE - } static int hpc_power_on_slot(struct slot * slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 slot_ctrl, slot_status; - int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - dbg("%s: slot->hp_slot %x\n", __FUNCTION__, slot->hp_slot); - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } /* Clear sticky power-fault bit from previous power failures */ - hp_register_read_word(php_ctlr->pci_dev, - SLOT_STATUS(slot->ctrl->cap_base), slot_status); + hp_register_read_word(ctrl->pci_dev, + SLOT_STATUS(ctrl->cap_base), slot_status); slot_status &= PWR_FAULT_DETECTED; if (slot_status) - hp_register_write_word(php_ctlr->pci_dev, - SLOT_STATUS(slot->ctrl->cap_base), slot_status); - - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); + hp_register_write_word(ctrl->pci_dev, + SLOT_STATUS(ctrl->cap_base), slot_status); + retval = hp_register_read_word(ctrl->pci_dev, + SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (retval) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return retval; @@ -807,27 +625,16 @@ static int hpc_power_on_slot(struct slot * slot) static int hpc_power_off_slot(struct slot * slot) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 slot_ctrl; - int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - dbg("%s: slot->hp_slot %x\n", __FUNCTION__, slot->hp_slot); - slot->hp_slot = 0; - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - retval = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); + retval = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (retval) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return retval; @@ -861,38 +668,15 @@ static int hpc_power_off_slot(struct slot * slot) return retval; } -static irqreturn_t pcie_isr(int IRQ, void *dev_id) +static irqreturn_t pcie_isr(int irq, void *dev_id) { - struct controller *ctrl = NULL; - struct php_ctlr_state_s *php_ctlr; - u8 schedule_flag = 0; + struct controller *ctrl = (struct controller *)dev_id; u16 slot_status, intr_detect, intr_loc; u16 temp_word; int hp_slot = 0; /* only 1 slot per PCI Express port */ int rc = 0; - if (!dev_id) - return IRQ_NONE; - - if (!pciehp_poll_mode) { - ctrl = dev_id; - php_ctlr = ctrl->hpc_ctlr_handle; - } else { - php_ctlr = dev_id; - ctrl = (struct controller *)php_ctlr->callback_instance_id; - } - - if (!ctrl) { - dbg("%s: dev_id %p ctlr == NULL\n", __FUNCTION__, (void*) dev_id); - return IRQ_NONE; - } - - if (!php_ctlr) { - dbg("%s: php_ctlr == NULL\n", __FUNCTION__); - return IRQ_NONE; - } - - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; @@ -910,7 +694,7 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) dbg("%s: intr_loc %x\n", __FUNCTION__, intr_loc); /* Mask Hot-plug Interrupt Enable */ if (!pciehp_poll_mode) { - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return IRQ_NONE; @@ -919,13 +703,13 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) dbg("%s: hp_register_read_word SLOT_CTRL with value %x\n", __FUNCTION__, temp_word); temp_word = (temp_word & ~HP_INTR_ENABLE & ~CMD_CMPL_INTR_ENABLE) | 0x00; - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); return IRQ_NONE; } - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; @@ -934,7 +718,7 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) /* Clear command complete interrupt caused by this write */ temp_word = 0x1f; - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; @@ -948,29 +732,28 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) wake_up_interruptible(&ctrl->queue); } - if ((php_ctlr->switch_change_callback) && (intr_loc & MRL_SENS_CHANGED)) - schedule_flag += php_ctlr->switch_change_callback( - hp_slot, php_ctlr->callback_instance_id); - if ((php_ctlr->attention_button_callback) && (intr_loc & ATTN_BUTTN_PRESSED)) - schedule_flag += php_ctlr->attention_button_callback( - hp_slot, php_ctlr->callback_instance_id); - if ((php_ctlr->presence_change_callback) && (intr_loc & PRSN_DETECT_CHANGED)) - schedule_flag += php_ctlr->presence_change_callback( - hp_slot , php_ctlr->callback_instance_id); - if ((php_ctlr->power_fault_callback) && (intr_loc & PWR_FAULT_DETECTED)) - schedule_flag += php_ctlr->power_fault_callback( - hp_slot, php_ctlr->callback_instance_id); + if (intr_loc & MRL_SENS_CHANGED) + pciehp_handle_switch_change(hp_slot, ctrl); + + if (intr_loc & ATTN_BUTTN_PRESSED) + pciehp_handle_attention_button(hp_slot, ctrl); + + if (intr_loc & PRSN_DETECT_CHANGED) + pciehp_handle_presence_change(hp_slot, ctrl); + + if (intr_loc & PWR_FAULT_DETECTED) + pciehp_handle_power_fault(hp_slot, ctrl); /* Clear all events after serving them */ temp_word = 0x1F; - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; } /* Unmask Hot-plug Interrupt Enable */ if (!pciehp_poll_mode) { - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); return IRQ_NONE; @@ -979,13 +762,13 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) dbg("%s: Unmask Hot-plug Interrupt Enable\n", __FUNCTION__); temp_word = (temp_word & ~HP_INTR_ENABLE) | HP_INTR_ENABLE; - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); return IRQ_NONE; } - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; @@ -993,7 +776,7 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) /* Clear command complete interrupt caused by this write */ temp_word = 0x1F; - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); return IRQ_NONE; @@ -1006,25 +789,14 @@ static irqreturn_t pcie_isr(int IRQ, void *dev_id) static int hpc_get_max_lnk_speed (struct slot *slot, enum pci_bus_speed *value) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; enum pcie_link_speed lnk_speed; u32 lnk_cap; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_dword(php_ctlr->pci_dev, LNK_CAP(slot->ctrl->cap_base), lnk_cap); - + retval = hp_register_read_dword(ctrl->pci_dev, LNK_CAP(ctrl->cap_base), lnk_cap); if (retval) { err("%s : hp_register_read_dword LNK_CAP failed\n", __FUNCTION__); return retval; @@ -1047,25 +819,14 @@ static int hpc_get_max_lnk_speed (struct slot *slot, enum pci_bus_speed *value) static int hpc_get_max_lnk_width (struct slot *slot, enum pcie_link_width *value) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; enum pcie_link_width lnk_wdth; u32 lnk_cap; int retval = 0; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_dword(php_ctlr->pci_dev, LNK_CAP(slot->ctrl->cap_base), lnk_cap); - + retval = hp_register_read_dword(ctrl->pci_dev, LNK_CAP(ctrl->cap_base), lnk_cap); if (retval) { err("%s : hp_register_read_dword LNK_CAP failed\n", __FUNCTION__); return retval; @@ -1109,25 +870,14 @@ static int hpc_get_max_lnk_width (struct slot *slot, enum pcie_link_width *value static int hpc_get_cur_lnk_speed (struct slot *slot, enum pci_bus_speed *value) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; enum pcie_link_speed lnk_speed = PCI_SPEED_UNKNOWN; int retval = 0; u16 lnk_status; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, LNK_STATUS(slot->ctrl->cap_base), lnk_status); - + retval = hp_register_read_word(ctrl->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); if (retval) { err("%s : hp_register_read_word LNK_STATUS failed\n", __FUNCTION__); return retval; @@ -1150,25 +900,14 @@ static int hpc_get_cur_lnk_speed (struct slot *slot, enum pci_bus_speed *value) static int hpc_get_cur_lnk_width (struct slot *slot, enum pcie_link_width *value) { - struct php_ctlr_state_s *php_ctlr = slot->ctrl->hpc_ctlr_handle; + struct controller *ctrl = slot->ctrl; enum pcie_link_width lnk_wdth = PCIE_LNK_WIDTH_UNKNOWN; int retval = 0; u16 lnk_status; DBG_ENTER_ROUTINE - if (!php_ctlr) { - err("%s: Invalid HPC controller handle!\n", __FUNCTION__); - return -1; - } - - if (slot->hp_slot >= php_ctlr->num_slots) { - err("%s: Invalid HPC slot number!\n", __FUNCTION__); - return -1; - } - - retval = hp_register_read_word(php_ctlr->pci_dev, LNK_STATUS(slot->ctrl->cap_base), lnk_status); - + retval = hp_register_read_word(ctrl->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); if (retval) { err("%s : hp_register_read_word LNK_STATUS failed\n", __FUNCTION__); return retval; @@ -1305,8 +1044,6 @@ int pciehp_acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev) int pcie_init(struct controller * ctrl, struct pcie_device *dev) { - struct php_ctlr_state_s *php_ctlr, *p; - void *instance_id = ctrl; int rc; static int first = 1; u16 temp_word; @@ -1319,18 +1056,8 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) DBG_ENTER_ROUTINE - spin_lock_init(&list_lock); - php_ctlr = kmalloc(sizeof(struct php_ctlr_state_s), GFP_KERNEL); - - if (!php_ctlr) { /* allocate controller state data */ - err("%s: HPC controller memory allocation error!\n", __FUNCTION__); - goto abort; - } - - memset(php_ctlr, 0, sizeof(struct php_ctlr_state_s)); - pdev = dev->port; - php_ctlr->pci_dev = pdev; /* save pci_dev in context */ + ctrl->pci_dev = pdev; /* save pci_dev in context */ dbg("%s: hotplug controller vendor id 0x%x device id 0x%x\n", __FUNCTION__, pdev->vendor, pdev->device); @@ -1359,7 +1086,7 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) goto abort_free_ctlr; } - rc = hp_register_read_dword(php_ctlr->pci_dev, SLOT_CAP(ctrl->cap_base), slot_cap); + rc = hp_register_read_dword(ctrl->pci_dev, SLOT_CAP(ctrl->cap_base), slot_cap); if (rc) { err("%s : hp_register_read_word CAP_REG failed\n", __FUNCTION__); goto abort_free_ctlr; @@ -1371,14 +1098,14 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) goto abort_free_ctlr; } /* For debugging purpose */ - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); goto abort_free_ctlr; } dbg("%s: SLOT_STATUS offset %x slot_status %x\n", __FUNCTION__, SLOT_STATUS(ctrl->cap_base), slot_status); - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); if (rc) { err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); goto abort_free_ctlr; @@ -1405,19 +1132,11 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) /* setup wait queue */ init_waitqueue_head(&ctrl->queue); - /* find the IRQ */ - php_ctlr->irq = dev->irq; - - /* Save interrupt callback info */ - php_ctlr->attention_button_callback = pciehp_handle_attention_button; - php_ctlr->switch_change_callback = pciehp_handle_switch_change; - php_ctlr->presence_change_callback = pciehp_handle_presence_change; - php_ctlr->power_fault_callback = pciehp_handle_power_fault; - php_ctlr->callback_instance_id = instance_id; - /* return PCI Controller Info */ - php_ctlr->slot_device_offset = 0; - php_ctlr->num_slots = 1; + ctrl->slot_device_offset = 0; + ctrl->num_slots = 1; + ctrl->first_slot = slot_cap >> 19; + ctrl->ctrlcap = slot_cap & 0x0000007f; /* Mask Hot-plug Interrupt Enable */ rc = hp_register_read_word(pdev, SLOT_CTRL(ctrl->cap_base), temp_word); @@ -1435,33 +1154,35 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) goto abort_free_ctlr; } - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); goto abort_free_ctlr; } temp_word = 0x1F; /* Clear all events */ - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); goto abort_free_ctlr; } - if (pciehp_poll_mode) {/* Install interrupt polling code */ - /* Install and start the interrupt polling timer */ - init_timer(&php_ctlr->int_poll_timer); - start_int_poll_timer( php_ctlr, 10 ); /* start with 10 second delay */ + if (pciehp_poll_mode) { + /* Install interrupt polling timer. Start with 10 sec delay */ + init_timer(&ctrl->poll_timer); + start_int_poll_timer(ctrl, 10); } else { /* Installs the interrupt handler */ - rc = request_irq(php_ctlr->irq, pcie_isr, IRQF_SHARED, MY_NAME, (void *) ctrl); - dbg("%s: request_irq %d for hpc%d (returns %d)\n", __FUNCTION__, php_ctlr->irq, ctlr_seq_num, rc); + rc = request_irq(ctrl->pci_dev->irq, pcie_isr, IRQF_SHARED, + MY_NAME, (void *)ctrl); + dbg("%s: request_irq %d for hpc%d (returns %d)\n", + __FUNCTION__, ctrl->pci_dev->irq, ctlr_seq_num, rc); if (rc) { - err("Can't get irq %d for the hotplug controller\n", php_ctlr->irq); + err("Can't get irq %d for the hotplug controller\n", + ctrl->pci_dev->irq); goto abort_free_ctlr; } } - dbg("pciehp ctrl b:d:f:irq=0x%x:%x:%x:%x\n", pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), dev->irq); @@ -1496,14 +1217,14 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); goto abort_free_irq; } - rc = hp_register_read_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); if (rc) { err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); goto abort_disable_intr; } temp_word = 0x1F; /* Clear all events */ - rc = hp_register_write_word(php_ctlr->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); if (rc) { err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); goto abort_disable_intr; @@ -1518,24 +1239,7 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) goto abort_disable_intr; } - /* Add this HPC instance into the HPC list */ - spin_lock(&list_lock); - if (php_ctlr_list_head == 0) { - php_ctlr_list_head = php_ctlr; - p = php_ctlr_list_head; - p->pnext = NULL; - } else { - p = php_ctlr_list_head; - - while (p->pnext) - p = p->pnext; - - p->pnext = php_ctlr; - } - spin_unlock(&list_lock); - ctlr_seq_num++; - ctrl->hpc_ctlr_handle = php_ctlr; ctrl->hpc_ops = &pciehp_hpc_ops; DBG_LEAVE_ROUTINE @@ -1553,14 +1257,13 @@ abort_disable_intr: abort_free_irq: if (pciehp_poll_mode) - del_timer_sync(&php_ctlr->int_poll_timer); + del_timer_sync(&ctrl->poll_timer); else - free_irq(php_ctlr->irq, ctrl); + free_irq(ctrl->pci_dev->irq, ctrl); abort_free_ctlr: pcie_cap_base = saved_cap_base; - kfree(php_ctlr); -abort: + DBG_LEAVE_ROUTINE return -1; } -- cgit v1.2.3 From a8c2b635979823043ea7766dea1d9371773b4d8e Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Thu, 21 Dec 2006 17:01:05 -0800 Subject: pciehp: remove unused pci_bus from struct controller This patch removes unused pci_bus member from struct controller. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp.h | 1 - drivers/pci/hotplug/pciehp_core.c | 14 ++------------ 2 files changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 202e4967a94..b505515a07a 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -78,7 +78,6 @@ struct controller { int num_slots; /* Number of slots on ctlr */ int slot_num_inc; /* 1 or -1 */ struct pci_dev *pci_dev; - struct pci_bus *pci_bus; struct list_head slot_list; struct event_info event_queue[MAX_EVENTS]; struct slot *slot; diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index a315685b2d3..b617613381d 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -346,13 +346,6 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ pci_set_drvdata(pdev, ctrl); - ctrl->pci_bus = kmalloc(sizeof(*ctrl->pci_bus), GFP_KERNEL); - if (!ctrl->pci_bus) { - err("%s: out of memory\n", __FUNCTION__); - rc = -ENOMEM; - goto err_out_unmap_mmio_region; - } - memcpy (ctrl->pci_bus, pdev->bus, sizeof (*ctrl->pci_bus)); ctrl->bus = pdev->bus->number; /* ctrl bus */ ctrl->slot_bus = pdev->subordinate->number; /* bus controlled by this HPC */ @@ -365,7 +358,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ rc = init_slots(ctrl); if (rc) { err(msg_initialization_err, 6); - goto err_out_free_ctrl_slot; + goto err_out_release_ctlr; } t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset); @@ -404,8 +397,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ err_out_free_ctrl_slot: cleanup_slots(ctrl); - kfree(ctrl->pci_bus); -err_out_unmap_mmio_region: +err_out_release_ctlr: ctrl->hpc_ops->release_ctlr(ctrl); err_out_free_ctrl: kfree(ctrl); @@ -439,8 +431,6 @@ static void __exit unload_pciehpd(void) while (ctrl) { cleanup_slots(ctrl); - kfree (ctrl->pci_bus); - ctrl->hpc_ops->release_ctlr(ctrl); tctrl = ctrl; -- cgit v1.2.3 From a0f018daa9955d123b9257b08bcac2d59e295967 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Thu, 21 Dec 2006 17:01:06 -0800 Subject: pciehp: cleanup register access This patch cleans up register access functions. This has no functional change. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp_hpc.c | 301 +++++++++++++++++++++------------------ 1 file changed, 164 insertions(+), 137 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index ed901b5c279..98eee63f3ec 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -107,32 +107,29 @@ enum ctrl_offsets { }; static int pcie_cap_base = 0; /* Base of the PCI Express capability item structure */ -#define PCIE_CAP_ID(cb) ( cb + PCIECAPID ) -#define NXT_CAP_PTR(cb) ( cb + NXTCAPPTR ) -#define CAP_REG(cb) ( cb + CAPREG ) -#define DEV_CAP(cb) ( cb + DEVCAP ) -#define DEV_CTRL(cb) ( cb + DEVCTRL ) -#define DEV_STATUS(cb) ( cb + DEVSTATUS ) -#define LNK_CAP(cb) ( cb + LNKCAP ) -#define LNK_CTRL(cb) ( cb + LNKCTRL ) -#define LNK_STATUS(cb) ( cb + LNKSTATUS ) -#define SLOT_CAP(cb) ( cb + SLOTCAP ) -#define SLOT_CTRL(cb) ( cb + SLOTCTRL ) -#define SLOT_STATUS(cb) ( cb + SLOTSTATUS ) -#define ROOT_CTRL(cb) ( cb + ROOTCTRL ) -#define ROOT_STATUS(cb) ( cb + ROOTSTATUS ) - -#define hp_register_read_word(pdev, reg , value) \ - pci_read_config_word(pdev, reg, &value) - -#define hp_register_read_dword(pdev, reg , value) \ - pci_read_config_dword(pdev, reg, &value) - -#define hp_register_write_word(pdev, reg , value) \ - pci_write_config_word(pdev, reg, value) - -#define hp_register_dwrite_word(pdev, reg , value) \ - pci_write_config_dword(pdev, reg, value) +static inline int pciehp_readw(struct controller *ctrl, int reg, u16 *value) +{ + struct pci_dev *dev = ctrl->pci_dev; + return pci_read_config_word(dev, ctrl->cap_base + reg, value); +} + +static inline int pciehp_readl(struct controller *ctrl, int reg, u32 *value) +{ + struct pci_dev *dev = ctrl->pci_dev; + return pci_read_config_dword(dev, ctrl->cap_base + reg, value); +} + +static inline int pciehp_writew(struct controller *ctrl, int reg, u16 value) +{ + struct pci_dev *dev = ctrl->pci_dev; + return pci_write_config_word(dev, ctrl->cap_base + reg, value); +} + +static inline int pciehp_writel(struct controller *ctrl, int reg, u32 value) +{ + struct pci_dev *dev = ctrl->pci_dev; + return pci_write_config_dword(dev, ctrl->cap_base + reg, value); +} /* Field definitions in PCI Express Capabilities Register */ #define CAP_VER 0x000F @@ -260,22 +257,22 @@ static int pcie_write_cmd(struct slot *slot, u16 cmd) u16 slot_status; DBG_ENTER_ROUTINE - - retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + + retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (retval) { - err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); - return retval; - } - + err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); + return retval; + } + if ((slot_status & CMD_COMPLETED) == CMD_COMPLETED ) { /* After 1 sec and CMD_COMPLETED still not set, just proceed forward to issue the next command according to spec. Just print out the error message */ dbg("%s : CMD_COMPLETED not clear after 1 sec.\n", __FUNCTION__); } - retval = hp_register_write_word(ctrl->pci_dev, SLOT_CTRL(slot->ctrl->cap_base), cmd | CMD_CMPL_INTR_ENABLE); + retval = pciehp_writew(ctrl, SLOTCTRL, (cmd | CMD_CMPL_INTR_ENABLE)); if (retval) { - err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot write to SLOTCTRL register\n", __FUNCTION__); return retval; } @@ -290,9 +287,9 @@ static int hpc_check_lnk_status(struct controller *ctrl) DBG_ENTER_ROUTINE - retval = hp_register_read_word(ctrl->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); + retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status); if (retval) { - err("%s : hp_register_read_word LNK_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read LNKSTATUS register\n", __FUNCTION__); return retval; } @@ -318,13 +315,14 @@ static int hpc_get_attention_status(struct slot *slot, u8 *status) DBG_ENTER_ROUTINE - retval = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (retval) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); return retval; } - dbg("%s: SLOT_CTRL %x, value read %x\n", __FUNCTION__,SLOT_CTRL(slot->ctrl->cap_base), slot_ctrl); + dbg("%s: SLOTCTRL %x, value read %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_ctrl); atten_led_state = (slot_ctrl & ATTN_LED_CTRL) >> 6; @@ -359,12 +357,13 @@ static int hpc_get_power_status(struct slot *slot, u8 *status) DBG_ENTER_ROUTINE - retval = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (retval) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); return retval; } - dbg("%s: SLOT_CTRL %x value read %x\n", __FUNCTION__, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + dbg("%s: SLOTCTRL %x value read %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_ctrl); pwr_state = (slot_ctrl & PWR_CTRL) >> 10; @@ -393,9 +392,9 @@ static int hpc_get_latch_status(struct slot *slot, u8 *status) DBG_ENTER_ROUTINE - retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (retval) { - err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); return retval; } @@ -414,9 +413,9 @@ static int hpc_get_adapter_status(struct slot *slot, u8 *status) DBG_ENTER_ROUTINE - retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (retval) { - err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); return retval; } card_state = (u8)((slot_status & PRSN_STATE) >> 6); @@ -435,9 +434,9 @@ static int hpc_query_power_fault(struct slot *slot) DBG_ENTER_ROUTINE - retval = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (retval) { - err("%s : Cannot check for power fault\n", __FUNCTION__); + err("%s: Cannot check for power fault\n", __FUNCTION__); return retval; } pwr_fault = (u8)((slot_status & PWR_FAULT_DETECTED) >> 1); @@ -455,9 +454,9 @@ static int hpc_set_attention_status(struct slot *slot, u8 value) DBG_ENTER_ROUTINE - rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + rc = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (rc) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); return rc; } @@ -478,7 +477,8 @@ static int hpc_set_attention_status(struct slot *slot, u8 value) slot_cmd = slot_cmd | HP_INTR_ENABLE; pcie_write_cmd(slot, slot_cmd); - dbg("%s: SLOT_CTRL %x write cmd %x\n", __FUNCTION__, SLOT_CTRL(slot->ctrl->cap_base), slot_cmd); + dbg("%s: SLOTCTRL %x write cmd %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); DBG_LEAVE_ROUTINE return rc; @@ -494,9 +494,9 @@ static void hpc_set_green_led_on(struct slot *slot) DBG_ENTER_ROUTINE - rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + rc = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (rc) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); return; } slot_cmd = (slot_ctrl & ~PWR_LED_CTRL) | 0x0100; @@ -505,7 +505,8 @@ static void hpc_set_green_led_on(struct slot *slot) pcie_write_cmd(slot, slot_cmd); - dbg("%s: SLOT_CTRL %x write cmd %x\n",__FUNCTION__, SLOT_CTRL(slot->ctrl->cap_base), slot_cmd); + dbg("%s: SLOTCTRL %x write cmd %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); DBG_LEAVE_ROUTINE return; } @@ -519,9 +520,9 @@ static void hpc_set_green_led_off(struct slot *slot) DBG_ENTER_ROUTINE - rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + rc = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (rc) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); return; } @@ -530,7 +531,8 @@ static void hpc_set_green_led_off(struct slot *slot) if (!pciehp_poll_mode) slot_cmd = slot_cmd | HP_INTR_ENABLE; pcie_write_cmd(slot, slot_cmd); - dbg("%s: SLOT_CTRL %x write cmd %x\n", __FUNCTION__, SLOT_CTRL(slot->ctrl->cap_base), slot_cmd); + dbg("%s: SLOTCTRL %x write cmd %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); DBG_LEAVE_ROUTINE return; @@ -545,9 +547,9 @@ static void hpc_set_green_led_blink(struct slot *slot) DBG_ENTER_ROUTINE - rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + rc = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (rc) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); return; } @@ -557,7 +559,8 @@ static void hpc_set_green_led_blink(struct slot *slot) slot_cmd = slot_cmd | HP_INTR_ENABLE; pcie_write_cmd(slot, slot_cmd); - dbg("%s: SLOT_CTRL %x write cmd %x\n",__FUNCTION__, SLOT_CTRL(slot->ctrl->cap_base), slot_cmd); + dbg("%s: SLOTCTRL %x write cmd %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); DBG_LEAVE_ROUTINE return; } @@ -586,17 +589,24 @@ static int hpc_power_on_slot(struct slot * slot) dbg("%s: slot->hp_slot %x\n", __FUNCTION__, slot->hp_slot); /* Clear sticky power-fault bit from previous power failures */ - hp_register_read_word(ctrl->pci_dev, - SLOT_STATUS(ctrl->cap_base), slot_status); + retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); + if (retval) { + err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); + return retval; + } slot_status &= PWR_FAULT_DETECTED; - if (slot_status) - hp_register_write_word(ctrl->pci_dev, - SLOT_STATUS(ctrl->cap_base), slot_status); + if (slot_status) { + retval = pciehp_writew(ctrl, SLOTSTATUS, slot_status); + if (retval) { + err("%s: Cannot write to SLOTSTATUS register\n", + __FUNCTION__); + return retval; + } + } - retval = hp_register_read_word(ctrl->pci_dev, - SLOT_CTRL(ctrl->cap_base), slot_ctrl); + retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (retval) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); return retval; } @@ -616,7 +626,8 @@ static int hpc_power_on_slot(struct slot * slot) err("%s: Write %x command failed!\n", __FUNCTION__, slot_cmd); return -1; } - dbg("%s: SLOT_CTRL %x write cmd %x\n",__FUNCTION__, SLOT_CTRL(slot->ctrl->cap_base), slot_cmd); + dbg("%s: SLOTCTRL %x write cmd %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); DBG_LEAVE_ROUTINE @@ -634,9 +645,9 @@ static int hpc_power_off_slot(struct slot * slot) dbg("%s: slot->hp_slot %x\n", __FUNCTION__, slot->hp_slot); - retval = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (retval) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); return retval; } @@ -661,7 +672,8 @@ static int hpc_power_off_slot(struct slot * slot) err("%s: Write command failed!\n", __FUNCTION__); return -1; } - dbg("%s: SLOT_CTRL %x write cmd %x\n",__FUNCTION__, SLOT_CTRL(slot->ctrl->cap_base), slot_cmd); + dbg("%s: SLOTCTRL %x write cmd %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); DBG_LEAVE_ROUTINE @@ -676,9 +688,9 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) int hp_slot = 0; /* only 1 slot per PCI Express port */ int rc = 0; - rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (rc) { - err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); return IRQ_NONE; } @@ -694,33 +706,38 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) dbg("%s: intr_loc %x\n", __FUNCTION__, intr_loc); /* Mask Hot-plug Interrupt Enable */ if (!pciehp_poll_mode) { - rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = pciehp_readw(ctrl, SLOTCTRL, &temp_word); if (rc) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOT_CTRL register\n", + __FUNCTION__); return IRQ_NONE; } - dbg("%s: hp_register_read_word SLOT_CTRL with value %x\n", __FUNCTION__, temp_word); + dbg("%s: pciehp_readw(SLOTCTRL) with value %x\n", + __FUNCTION__, temp_word); temp_word = (temp_word & ~HP_INTR_ENABLE & ~CMD_CMPL_INTR_ENABLE) | 0x00; - - rc = hp_register_write_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = pciehp_writew(ctrl, SLOTCTRL, temp_word); if (rc) { - err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot write to SLOTCTRL register\n", + __FUNCTION__); return IRQ_NONE; } - - rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + + rc = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (rc) { - err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read SLOT_STATUS register\n", + __FUNCTION__); return IRQ_NONE; } - dbg("%s: hp_register_read_word SLOT_STATUS with value %x\n", __FUNCTION__, slot_status); + dbg("%s: pciehp_readw(SLOTSTATUS) with value %x\n", + __FUNCTION__, slot_status); /* Clear command complete interrupt caused by this write */ temp_word = 0x1f; - rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = pciehp_writew(ctrl, SLOTSTATUS, temp_word); if (rc) { - err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot write to SLOTSTATUS register\n", + __FUNCTION__); return IRQ_NONE; } } @@ -746,42 +763,47 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) /* Clear all events after serving them */ temp_word = 0x1F; - rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = pciehp_writew(ctrl, SLOTSTATUS, temp_word); if (rc) { - err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot write to SLOTSTATUS register\n", __FUNCTION__); return IRQ_NONE; } /* Unmask Hot-plug Interrupt Enable */ if (!pciehp_poll_mode) { - rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = pciehp_readw(ctrl, SLOTCTRL, &temp_word); if (rc) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", + __FUNCTION__); return IRQ_NONE; } dbg("%s: Unmask Hot-plug Interrupt Enable\n", __FUNCTION__); temp_word = (temp_word & ~HP_INTR_ENABLE) | HP_INTR_ENABLE; - rc = hp_register_write_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = pciehp_writew(ctrl, SLOTCTRL, temp_word); if (rc) { - err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot write to SLOTCTRL register\n", + __FUNCTION__); return IRQ_NONE; } - - rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + + rc = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (rc) { - err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read SLOT_STATUS register\n", + __FUNCTION__); return IRQ_NONE; } /* Clear command complete interrupt caused by this write */ temp_word = 0x1F; - rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = pciehp_writew(ctrl, SLOTSTATUS, temp_word); if (rc) { - err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot write to SLOTSTATUS failed\n", + __FUNCTION__); return IRQ_NONE; } - dbg("%s: hp_register_write_word SLOT_STATUS with value %x\n", __FUNCTION__, temp_word); + dbg("%s: pciehp_writew(SLOTSTATUS) with value %x\n", + __FUNCTION__, temp_word); } return IRQ_HANDLED; @@ -796,9 +818,9 @@ static int hpc_get_max_lnk_speed (struct slot *slot, enum pci_bus_speed *value) DBG_ENTER_ROUTINE - retval = hp_register_read_dword(ctrl->pci_dev, LNK_CAP(ctrl->cap_base), lnk_cap); + retval = pciehp_readl(ctrl, LNKCAP, &lnk_cap); if (retval) { - err("%s : hp_register_read_dword LNK_CAP failed\n", __FUNCTION__); + err("%s: Cannot read LNKCAP register\n", __FUNCTION__); return retval; } @@ -826,9 +848,9 @@ static int hpc_get_max_lnk_width (struct slot *slot, enum pcie_link_width *value DBG_ENTER_ROUTINE - retval = hp_register_read_dword(ctrl->pci_dev, LNK_CAP(ctrl->cap_base), lnk_cap); + retval = pciehp_readl(ctrl, LNKCAP, &lnk_cap); if (retval) { - err("%s : hp_register_read_dword LNK_CAP failed\n", __FUNCTION__); + err("%s: Cannot read LNKCAP register\n", __FUNCTION__); return retval; } @@ -877,9 +899,9 @@ static int hpc_get_cur_lnk_speed (struct slot *slot, enum pci_bus_speed *value) DBG_ENTER_ROUTINE - retval = hp_register_read_word(ctrl->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); + retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status); if (retval) { - err("%s : hp_register_read_word LNK_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read LNKSTATUS register\n", __FUNCTION__); return retval; } @@ -907,9 +929,9 @@ static int hpc_get_cur_lnk_width (struct slot *slot, enum pcie_link_width *value DBG_ENTER_ROUTINE - retval = hp_register_read_word(ctrl->pci_dev, LNK_STATUS(ctrl->cap_base), lnk_status); + retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status); if (retval) { - err("%s : hp_register_read_word LNK_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read LNKSTATUS register\n", __FUNCTION__); return retval; } @@ -1073,12 +1095,13 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) dbg("%s: pcie_cap_base %x\n", __FUNCTION__, pcie_cap_base); - rc = hp_register_read_word(pdev, CAP_REG(ctrl->cap_base), cap_reg); + rc = pciehp_readw(ctrl, CAPREG, &cap_reg); if (rc) { - err("%s : hp_register_read_word CAP_REG failed\n", __FUNCTION__); + err("%s: Cannot read CAPREG register\n", __FUNCTION__); goto abort_free_ctlr; } - dbg("%s: CAP_REG offset %x cap_reg %x\n", __FUNCTION__, CAP_REG(ctrl->cap_base), cap_reg); + dbg("%s: CAPREG offset %x cap_reg %x\n", + __FUNCTION__, ctrl->cap_base + CAPREG, cap_reg); if (((cap_reg & SLOT_IMPL) == 0) || (((cap_reg & DEV_PORT_TYPE) != 0x0040) && ((cap_reg & DEV_PORT_TYPE) != 0x0060))) { @@ -1086,31 +1109,34 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) goto abort_free_ctlr; } - rc = hp_register_read_dword(ctrl->pci_dev, SLOT_CAP(ctrl->cap_base), slot_cap); + rc = pciehp_readl(ctrl, SLOTCAP, &slot_cap); if (rc) { - err("%s : hp_register_read_word CAP_REG failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCAP register\n", __FUNCTION__); goto abort_free_ctlr; } - dbg("%s: SLOT_CAP offset %x slot_cap %x\n", __FUNCTION__, SLOT_CAP(ctrl->cap_base), slot_cap); + dbg("%s: SLOTCAP offset %x slot_cap %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCAP, slot_cap); if (!(slot_cap & HP_CAP)) { dbg("%s : This slot is not hot-plug capable\n", __FUNCTION__); goto abort_free_ctlr; } /* For debugging purpose */ - rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (rc) { - err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); goto abort_free_ctlr; } - dbg("%s: SLOT_STATUS offset %x slot_status %x\n", __FUNCTION__, SLOT_STATUS(ctrl->cap_base), slot_status); + dbg("%s: SLOTSTATUS offset %x slot_status %x\n", + __FUNCTION__, ctrl->cap_base + SLOTSTATUS, slot_status); - rc = hp_register_read_word(ctrl->pci_dev, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + rc = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (rc) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); goto abort_free_ctlr; } - dbg("%s: SLOT_CTRL offset %x slot_ctrl %x\n", __FUNCTION__, SLOT_CTRL(ctrl->cap_base), slot_ctrl); + dbg("%s: SLOTCTRL offset %x slot_ctrl %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_ctrl); if (first) { spin_lock_init(&hpc_event_lock); @@ -1139,31 +1165,32 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) ctrl->ctrlcap = slot_cap & 0x0000007f; /* Mask Hot-plug Interrupt Enable */ - rc = hp_register_read_word(pdev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = pciehp_readw(ctrl, SLOTCTRL, &temp_word); if (rc) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); goto abort_free_ctlr; } - dbg("%s: SLOT_CTRL %x value read %x\n", __FUNCTION__, SLOT_CTRL(ctrl->cap_base), temp_word); + dbg("%s: SLOTCTRL %x value read %x\n", + __FUNCTION__, ctrl->cap_base + SLOTCTRL, temp_word); temp_word = (temp_word & ~HP_INTR_ENABLE & ~CMD_CMPL_INTR_ENABLE) | 0x00; - rc = hp_register_write_word(pdev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = pciehp_writew(ctrl, SLOTCTRL, temp_word); if (rc) { - err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot write to SLOTCTRL register\n", __FUNCTION__); goto abort_free_ctlr; } - rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (rc) { - err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); goto abort_free_ctlr; } temp_word = 0x1F; /* Clear all events */ - rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = pciehp_writew(ctrl, SLOTSTATUS, temp_word); if (rc) { - err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot write to SLOTSTATUS register\n", __FUNCTION__); goto abort_free_ctlr; } @@ -1186,9 +1213,9 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) dbg("pciehp ctrl b:d:f:irq=0x%x:%x:%x:%x\n", pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), dev->irq); - rc = hp_register_read_word(pdev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = pciehp_readw(ctrl, SLOTCTRL, &temp_word); if (rc) { - err("%s : hp_register_read_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot read SLOTCTRL register\n", __FUNCTION__); goto abort_free_irq; } @@ -1212,21 +1239,21 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) } /* Unmask Hot-plug Interrupt Enable for the interrupt notification mechanism case */ - rc = hp_register_write_word(pdev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = pciehp_writew(ctrl, SLOTCTRL, temp_word); if (rc) { - err("%s : hp_register_write_word SLOT_CTRL failed\n", __FUNCTION__); + err("%s: Cannot write to SLOTCTRL register\n", __FUNCTION__); goto abort_free_irq; } - rc = hp_register_read_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), slot_status); + rc = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (rc) { - err("%s : hp_register_read_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); goto abort_disable_intr; } temp_word = 0x1F; /* Clear all events */ - rc = hp_register_write_word(ctrl->pci_dev, SLOT_STATUS(ctrl->cap_base), temp_word); + rc = pciehp_writew(ctrl, SLOTSTATUS, temp_word); if (rc) { - err("%s : hp_register_write_word SLOT_STATUS failed\n", __FUNCTION__); + err("%s: Cannot write to SLOTSTATUS register\n", __FUNCTION__); goto abort_disable_intr; } @@ -1247,10 +1274,10 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) /* We end up here for the many possible ways to fail this API. */ abort_disable_intr: - rc = hp_register_read_word(pdev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = pciehp_readw(ctrl, SLOTCTRL, &temp_word); if (!rc) { temp_word &= ~(intr_enable | HP_INTR_ENABLE); - rc = hp_register_write_word(pdev, SLOT_CTRL(ctrl->cap_base), temp_word); + rc = pciehp_writew(ctrl, SLOTCTRL, temp_word); } if (rc) err("%s : disabling interrupts failed\n", __FUNCTION__); -- cgit v1.2.3 From 15232ece5566710d24c81ac3dd629f7556a92818 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Thu, 21 Dec 2006 17:01:07 -0800 Subject: pciehp: cleanup pciehp.h This patch cleans up pciehp.h. This has no functional change. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp.h | 101 ++++++++++++++------------------------ drivers/pci/hotplug/pciehp_core.c | 2 +- drivers/pci/hotplug/pciehp_ctrl.c | 6 +-- 3 files changed, 42 insertions(+), 67 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index b505515a07a..e4524cf0242 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -44,11 +44,17 @@ extern int pciehp_poll_time; extern int pciehp_debug; extern int pciehp_force; -/*#define dbg(format, arg...) do { if (pciehp_debug) printk(KERN_DEBUG "%s: " format, MY_NAME , ## arg); } while (0)*/ -#define dbg(format, arg...) do { if (pciehp_debug) printk("%s: " format, MY_NAME , ## arg); } while (0) -#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg) -#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg) -#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) +#define dbg(format, arg...) \ + do { \ + if (pciehp_debug) \ + printk("%s: " format, MY_NAME , ## arg); \ + } while (0) +#define err(format, arg...) \ + printk(KERN_ERR "%s: " format, MY_NAME , ## arg) +#define info(format, arg...) \ + printk(KERN_INFO "%s: " format, MY_NAME , ## arg) +#define warn(format, arg...) \ + printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) #define SLOT_NAME_SIZE 10 struct slot { @@ -113,8 +119,6 @@ struct controller { #define POWERON_STATE 3 #define POWEROFF_STATE 4 -#define PCI_TO_PCI_BRIDGE_CLASS 0x00060400 - /* Error messages */ #define INTERLOCK_OPEN 0x00000002 #define ADD_NOT_SUPPORTED 0x00000003 @@ -126,10 +130,6 @@ struct controller { #define WRONG_BUS_FREQUENCY 0x0000000D #define POWER_FAILURE 0x0000000E -#define REMOVE_NOT_SUPPORTED 0x00000003 - -#define DISABLE_CARD 1 - /* Field definitions in Slot Capabilities Register */ #define ATTN_BUTTN_PRSN 0x00000001 #define PWR_CTRL_PRSN 0x00000002 @@ -145,38 +145,21 @@ struct controller { #define PWR_LED(cap) (cap & PWR_LED_PRSN) #define HP_SUPR_RM(cap) (cap & HP_SUPR_RM_SUP) -/* - * error Messages - */ -#define msg_initialization_err "Initialization failure, error=%d\n" -#define msg_button_on "PCI slot #%s - powering on due to button press.\n" -#define msg_button_off "PCI slot #%s - powering off due to button press.\n" -#define msg_button_cancel "PCI slot #%s - action canceled due to button press.\n" -#define msg_button_ignore "PCI slot #%s - button press ignored. (action in progress...)\n" - -/* controller functions */ -extern int pciehp_event_start_thread (void); -extern void pciehp_event_stop_thread (void); -extern int pciehp_enable_slot (struct slot *slot); -extern int pciehp_disable_slot (struct slot *slot); - +extern int pciehp_event_start_thread(void); +extern void pciehp_event_stop_thread(void); +extern int pciehp_enable_slot(struct slot *slot); +extern int pciehp_disable_slot(struct slot *slot); extern u8 pciehp_handle_attention_button(u8 hp_slot, struct controller *ctrl); extern u8 pciehp_handle_switch_change(u8 hp_slot, struct controller *ctrl); extern u8 pciehp_handle_presence_change(u8 hp_slot, struct controller *ctrl); extern u8 pciehp_handle_power_fault(u8 hp_slot, struct controller *ctrl); -/* extern void long_delay (int delay); */ - -/* pci functions */ -extern int pciehp_configure_device (struct slot *p_slot); -extern int pciehp_unconfigure_device (struct slot *p_slot); - - +extern int pciehp_configure_device(struct slot *p_slot); +extern int pciehp_unconfigure_device(struct slot *p_slot); +int pcie_init(struct controller *ctrl, struct pcie_device *dev); /* Global variables */ extern struct controller *pciehp_ctrl_list; -/* Inline functions */ - static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device) { struct slot *slot; @@ -192,8 +175,6 @@ static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device) static inline int wait_for_ctrl_irq(struct controller *ctrl) { - int retval = 0; - DECLARE_WAITQUEUE(wait, current); add_wait_queue(&ctrl->queue, &wait); @@ -205,44 +186,38 @@ static inline int wait_for_ctrl_irq(struct controller *ctrl) remove_wait_queue(&ctrl->queue, &wait); if (signal_pending(current)) - retval = -EINTR; + return -EINTR; - return retval; + return 0; } -int pcie_init(struct controller *ctrl, struct pcie_device *dev); - struct hpc_ops { - int (*power_on_slot) (struct slot *slot); - int (*power_off_slot) (struct slot *slot); - int (*get_power_status) (struct slot *slot, u8 *status); - int (*get_attention_status) (struct slot *slot, u8 *status); - int (*set_attention_status) (struct slot *slot, u8 status); - int (*get_latch_status) (struct slot *slot, u8 *status); - int (*get_adapter_status) (struct slot *slot, u8 *status); - - int (*get_max_bus_speed) (struct slot *slot, enum pci_bus_speed *speed); - int (*get_cur_bus_speed) (struct slot *slot, enum pci_bus_speed *speed); - - int (*get_max_lnk_width) (struct slot *slot, enum pcie_link_width *value); - int (*get_cur_lnk_width) (struct slot *slot, enum pcie_link_width *value); - - int (*query_power_fault) (struct slot *slot); - void (*green_led_on) (struct slot *slot); - void (*green_led_off) (struct slot *slot); - void (*green_led_blink) (struct slot *slot); - void (*release_ctlr) (struct controller *ctrl); - int (*check_lnk_status) (struct controller *ctrl); + int (*power_on_slot)(struct slot *slot); + int (*power_off_slot)(struct slot *slot); + int (*get_power_status)(struct slot *slot, u8 *status); + int (*get_attention_status)(struct slot *slot, u8 *status); + int (*set_attention_status)(struct slot *slot, u8 status); + int (*get_latch_status)(struct slot *slot, u8 *status); + int (*get_adapter_status)(struct slot *slot, u8 *status); + int (*get_max_bus_speed)(struct slot *slot, enum pci_bus_speed *speed); + int (*get_cur_bus_speed)(struct slot *slot, enum pci_bus_speed *speed); + int (*get_max_lnk_width)(struct slot *slot, enum pcie_link_width *val); + int (*get_cur_lnk_width)(struct slot *slot, enum pcie_link_width *val); + int (*query_power_fault)(struct slot *slot); + void (*green_led_on)(struct slot *slot); + void (*green_led_off)(struct slot *slot); + void (*green_led_blink)(struct slot *slot); + void (*release_ctlr)(struct controller *ctrl); + int (*check_lnk_status)(struct controller *ctrl); }; - #ifdef CONFIG_ACPI #include #include #include #include -#define pciehp_get_hp_hw_control_from_firmware(dev) \ +#define pciehp_get_hp_hw_control_from_firmware(dev) \ pciehp_acpi_get_hp_hw_control_from_firmware(dev) static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev, struct hotplug_params *hpp) diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index b617613381d..e2d45662bdb 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -357,7 +357,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ /* Setup the slot information structures */ rc = init_slots(ctrl); if (rc) { - err(msg_initialization_err, 6); + err("%s: slot initialization failed\n", PCIE_MODULE_NAME); goto err_out_release_ctlr; } diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index 5bca9212f5e..072befa345a 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c @@ -655,7 +655,7 @@ static void interrupt_event_handler(struct controller *ctrl) warn("Not a valid state\n"); return; } - info(msg_button_cancel, slot_name(p_slot)); + info("PCI slot #%s - action canceled due to button press.\n", slot_name(p_slot)); p_slot->state = STATIC_STATE; } /* ***********Button Pressed (No action on 1st press...) */ @@ -668,12 +668,12 @@ static void interrupt_event_handler(struct controller *ctrl) /* slot is on */ dbg("slot is on\n"); p_slot->state = BLINKINGOFF_STATE; - info(msg_button_off, slot_name(p_slot)); + info("PCI slot #%s - powering off due to button press.\n", slot_name(p_slot)); } else { /* slot is off */ dbg("slot is off\n"); p_slot->state = BLINKINGON_STATE; - info(msg_button_on, slot_name(p_slot)); + info("PCI slot #%s - powering on due to button press.\n", slot_name(p_slot)); } /* Wait for exclusive access to hardware */ -- cgit v1.2.3 From 75e13178af33e20b5802885f637af2a82c64ac2c Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Thu, 21 Dec 2006 17:01:08 -0800 Subject: pciehp: remove unused pcie_cap_base This patch removes unused pcie_cap_base variable. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp_hpc.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 98eee63f3ec..d8f4f1241b5 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -105,7 +105,6 @@ enum ctrl_offsets { ROOTCTRL = offsetof(struct ctrl_reg, root_ctrl), ROOTSTATUS = offsetof(struct ctrl_reg, root_status), }; -static int pcie_cap_base = 0; /* Base of the PCI Express capability item structure */ static inline int pciehp_readw(struct controller *ctrl, int reg, u16 *value) { @@ -1072,7 +1071,7 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) u16 cap_reg; u16 intr_enable = 0; u32 slot_cap; - int cap_base, saved_cap_base; + int cap_base; u16 slot_status, slot_ctrl; struct pci_dev *pdev; @@ -1084,8 +1083,6 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) dbg("%s: hotplug controller vendor id 0x%x device id 0x%x\n", __FUNCTION__, pdev->vendor, pdev->device); - saved_cap_base = pcie_cap_base; - if ((cap_base = pci_find_capability(pdev, PCI_CAP_ID_EXP)) == 0) { dbg("%s: Can't find PCI_CAP_ID_EXP (0x10)\n", __FUNCTION__); goto abort_free_ctlr; @@ -1093,7 +1090,7 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) ctrl->cap_base = cap_base; - dbg("%s: pcie_cap_base %x\n", __FUNCTION__, pcie_cap_base); + dbg("%s: pcie_cap_base %x\n", __FUNCTION__, cap_base); rc = pciehp_readw(ctrl, CAPREG, &cap_reg); if (rc) { @@ -1289,8 +1286,6 @@ abort_free_irq: free_irq(ctrl->pci_dev->irq, ctrl); abort_free_ctlr: - pcie_cap_base = saved_cap_base; - DBG_LEAVE_ROUTINE return -1; } -- cgit v1.2.3 From 44ef4cefb0168740184ee3d7d18254339741e9d5 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Thu, 21 Dec 2006 17:01:09 -0800 Subject: pciehp: cleanup wait command completion This patch cleans up the code to wait for command completion. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp.h | 18 ---- drivers/pci/hotplug/pciehp_core.c | 14 +-- drivers/pci/hotplug/pciehp_ctrl.c | 205 +++++++++----------------------------- drivers/pci/hotplug/pciehp_hpc.c | 38 ++++++- 4 files changed, 82 insertions(+), 193 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index e4524cf0242..17167d59447 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -173,24 +173,6 @@ static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device) return NULL; } -static inline int wait_for_ctrl_irq(struct controller *ctrl) -{ - DECLARE_WAITQUEUE(wait, current); - - add_wait_queue(&ctrl->queue, &wait); - if (!pciehp_poll_mode) - /* Sleep for up to 1 second */ - msleep_interruptible(1000); - else - msleep_interruptible(2500); - - remove_wait_queue(&ctrl->queue, &wait); - if (signal_pending(current)) - return -EINTR; - - return 0; -} - struct hpc_ops { int (*power_on_slot)(struct slot *slot); int (*power_off_slot)(struct slot *slot); diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index e2d45662bdb..f7b8e0504fe 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -374,25 +374,13 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ pciehp_ctrl_list = ctrl; } - /* Wait for exclusive access to hardware */ - mutex_lock(&ctrl->ctrl_lock); - t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */ - if ((POWER_CTRL(ctrl->ctrlcap)) && !value) { rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/ - if (rc) { - /* Done with exclusive hardware access */ - mutex_unlock(&ctrl->ctrl_lock); + if (rc) goto err_out_free_ctrl_slot; - } else - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); } - /* Done with exclusive hardware access */ - mutex_unlock(&ctrl->ctrl_lock); - return 0; err_out_free_ctrl_slot: diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index 072befa345a..4283ef56dbd 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c @@ -229,35 +229,25 @@ u8 pciehp_handle_power_fault(u8 hp_slot, struct controller *ctrl) static void set_slot_off(struct controller *ctrl, struct slot * pslot) { - /* Wait for exclusive access to hardware */ - mutex_lock(&ctrl->ctrl_lock); - /* turn off slot, turn on Amber LED, turn off Green LED if supported*/ if (POWER_CTRL(ctrl->ctrlcap)) { if (pslot->hpc_ops->power_off_slot(pslot)) { - err("%s: Issue of Slot Power Off command failed\n", __FUNCTION__); - mutex_unlock(&ctrl->ctrl_lock); + err("%s: Issue of Slot Power Off command failed\n", + __FUNCTION__); return; } - wait_for_ctrl_irq (ctrl); } - if (PWR_LED(ctrl->ctrlcap)) { + if (PWR_LED(ctrl->ctrlcap)) pslot->hpc_ops->green_led_off(pslot); - wait_for_ctrl_irq (ctrl); - } - if (ATTN_LED(ctrl->ctrlcap)) { - if (pslot->hpc_ops->set_attention_status(pslot, 1)) { - err("%s: Issue of Set Attention Led command failed\n", __FUNCTION__); - mutex_unlock(&ctrl->ctrl_lock); + if (ATTN_LED(ctrl->ctrlcap)) { + if (pslot->hpc_ops->set_attention_status(pslot, 1)) { + err("%s: Issue of Set Attention Led command failed\n", + __FUNCTION__); return; } - wait_for_ctrl_irq (ctrl); } - - /* Done with exclusive hardware access */ - mutex_unlock(&ctrl->ctrl_lock); } /** @@ -270,7 +260,7 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot) static int board_added(struct slot *p_slot) { u8 hp_slot; - int rc = 0; + int retval = 0; struct controller *ctrl = p_slot->ctrl; hp_slot = p_slot->device - ctrl->slot_device_offset; @@ -279,53 +269,38 @@ static int board_added(struct slot *p_slot) __FUNCTION__, p_slot->device, ctrl->slot_device_offset, hp_slot); - /* Wait for exclusive access to hardware */ - mutex_lock(&ctrl->ctrl_lock); - if (POWER_CTRL(ctrl->ctrlcap)) { /* Power on slot */ - rc = p_slot->hpc_ops->power_on_slot(p_slot); - if (rc) { - mutex_unlock(&ctrl->ctrl_lock); - return -1; - } - - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); + retval = p_slot->hpc_ops->power_on_slot(p_slot); + if (retval) + return retval; } - if (PWR_LED(ctrl->ctrlcap)) { + if (PWR_LED(ctrl->ctrlcap)) p_slot->hpc_ops->green_led_blink(p_slot); - - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); - } - - /* Done with exclusive hardware access */ - mutex_unlock(&ctrl->ctrl_lock); /* Wait for ~1 second */ - wait_for_ctrl_irq (ctrl); + msleep(1000); - /* Check link training status */ - rc = p_slot->hpc_ops->check_lnk_status(ctrl); - if (rc) { + /* Check link training status */ + retval = p_slot->hpc_ops->check_lnk_status(ctrl); + if (retval) { err("%s: Failed to check link status\n", __FUNCTION__); set_slot_off(ctrl, p_slot); - return rc; + return retval; } /* Check for a power fault */ if (p_slot->hpc_ops->query_power_fault(p_slot)) { dbg("%s: power fault detected\n", __FUNCTION__); - rc = POWER_FAILURE; + retval = POWER_FAILURE; goto err_exit; } - rc = pciehp_configure_device(p_slot); - if (rc) { + retval = pciehp_configure_device(p_slot); + if (retval) { err("Cannot add device 0x%x:%x\n", p_slot->bus, - p_slot->device); + p_slot->device); goto err_exit; } @@ -334,26 +309,16 @@ static int board_added(struct slot *p_slot) */ if (pcie_mch_quirk) pci_fixup_device(pci_fixup_final, ctrl->pci_dev); - if (PWR_LED(ctrl->ctrlcap)) { - /* Wait for exclusive access to hardware */ - mutex_lock(&ctrl->ctrl_lock); - + if (PWR_LED(ctrl->ctrlcap)) p_slot->hpc_ops->green_led_on(p_slot); - - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); - - /* Done with exclusive hardware access */ - mutex_unlock(&ctrl->ctrl_lock); - } + return 0; err_exit: set_slot_off(ctrl, p_slot); - return -1; + return retval; } - /** * remove_board - Turns off slot and LED's * @@ -362,44 +327,32 @@ static int remove_board(struct slot *p_slot) { u8 device; u8 hp_slot; - int rc; + int retval = 0; struct controller *ctrl = p_slot->ctrl; - if (pciehp_unconfigure_device(p_slot)) - return 1; + retval = pciehp_unconfigure_device(p_slot); + if (retval) + return retval; device = p_slot->device; - hp_slot = p_slot->device - ctrl->slot_device_offset; p_slot = pciehp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); dbg("In %s, hp_slot = %d\n", __FUNCTION__, hp_slot); - /* Wait for exclusive access to hardware */ - mutex_lock(&ctrl->ctrl_lock); - if (POWER_CTRL(ctrl->ctrlcap)) { /* power off slot */ - rc = p_slot->hpc_ops->power_off_slot(p_slot); - if (rc) { - err("%s: Issue of Slot Disable command failed\n", __FUNCTION__); - mutex_unlock(&ctrl->ctrl_lock); - return rc; + retval = p_slot->hpc_ops->power_off_slot(p_slot); + if (retval) { + err("%s: Issue of Slot Disable command failed\n", + __FUNCTION__); + return retval; } - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); } - if (PWR_LED(ctrl->ctrlcap)) { + if (PWR_LED(ctrl->ctrlcap)) /* turn off Green LED */ p_slot->hpc_ops->green_led_off(p_slot); - - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); - } - - /* Done with exclusive hardware access */ - mutex_unlock(&ctrl->ctrl_lock); return 0; } @@ -444,18 +397,10 @@ static void pciehp_pushbutton_thread(unsigned long slot) dbg("%s: adding bus:device(%x:%x)\n", __FUNCTION__, p_slot->bus, p_slot->device); - if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) { - /* Wait for exclusive access to hardware */ - mutex_lock(&p_slot->ctrl->ctrl_lock); - + if (pciehp_enable_slot(p_slot) && + PWR_LED(p_slot->ctrl->ctrlcap)) p_slot->hpc_ops->green_led_off(p_slot); - /* Wait for the command to complete */ - wait_for_ctrl_irq (p_slot->ctrl); - - /* Done with exclusive hardware access */ - mutex_unlock(&p_slot->ctrl->ctrl_lock); - } p_slot->state = STATIC_STATE; } @@ -494,18 +439,10 @@ static void pciehp_surprise_rm_thread(unsigned long slot) dbg("%s: adding bus:device(%x:%x)\n", __FUNCTION__, p_slot->bus, p_slot->device); - if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) { - /* Wait for exclusive access to hardware */ - mutex_lock(&p_slot->ctrl->ctrl_lock); - + if (pciehp_enable_slot(p_slot) && + PWR_LED(p_slot->ctrl->ctrlcap)) p_slot->hpc_ops->green_led_off(p_slot); - /* Wait for the command to complete */ - wait_for_ctrl_irq (p_slot->ctrl); - - /* Done with exclusive hardware access */ - mutex_unlock(&p_slot->ctrl->ctrl_lock); - } p_slot->state = STATIC_STATE; } @@ -616,40 +553,18 @@ static void interrupt_event_handler(struct controller *ctrl) switch (p_slot->state) { case BLINKINGOFF_STATE: - /* Wait for exclusive access to hardware */ - mutex_lock(&ctrl->ctrl_lock); - - if (PWR_LED(ctrl->ctrlcap)) { + if (PWR_LED(ctrl->ctrlcap)) p_slot->hpc_ops->green_led_on(p_slot); - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); - } - if (ATTN_LED(ctrl->ctrlcap)) { - p_slot->hpc_ops->set_attention_status(p_slot, 0); - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); - } - /* Done with exclusive hardware access */ - mutex_unlock(&ctrl->ctrl_lock); + if (ATTN_LED(ctrl->ctrlcap)) + p_slot->hpc_ops->set_attention_status(p_slot, 0); break; case BLINKINGON_STATE: - /* Wait for exclusive access to hardware */ - mutex_lock(&ctrl->ctrl_lock); - - if (PWR_LED(ctrl->ctrlcap)) { + if (PWR_LED(ctrl->ctrlcap)) p_slot->hpc_ops->green_led_off(p_slot); - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); - } - if (ATTN_LED(ctrl->ctrlcap)){ - p_slot->hpc_ops->set_attention_status(p_slot, 0); - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); - } - /* Done with exclusive hardware access */ - mutex_unlock(&ctrl->ctrl_lock); + if (ATTN_LED(ctrl->ctrlcap)) + p_slot->hpc_ops->set_attention_status(p_slot, 0); break; default: warn("Not a valid state\n"); @@ -676,26 +591,13 @@ static void interrupt_event_handler(struct controller *ctrl) info("PCI slot #%s - powering on due to button press.\n", slot_name(p_slot)); } - /* Wait for exclusive access to hardware */ - mutex_lock(&ctrl->ctrl_lock); - /* blink green LED and turn off amber */ - if (PWR_LED(ctrl->ctrlcap)) { + if (PWR_LED(ctrl->ctrlcap)) p_slot->hpc_ops->green_led_blink(p_slot); - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); - } - if (ATTN_LED(ctrl->ctrlcap)) { + if (ATTN_LED(ctrl->ctrlcap)) p_slot->hpc_ops->set_attention_status(p_slot, 0); - /* Wait for the command to complete */ - wait_for_ctrl_irq (ctrl); - } - - /* Done with exclusive hardware access */ - mutex_unlock(&ctrl->ctrl_lock); - init_timer(&p_slot->task_event); p_slot->task_event.expires = jiffies + 5 * HZ; /* 5 second delay */ p_slot->task_event.function = (void (*)(unsigned long)) pushbutton_helper_thread; @@ -708,21 +610,11 @@ static void interrupt_event_handler(struct controller *ctrl) else if (ctrl->event_queue[loop].event_type == INT_POWER_FAULT) { if (POWER_CTRL(ctrl->ctrlcap)) { dbg("power fault\n"); - /* Wait for exclusive access to hardware */ - mutex_lock(&ctrl->ctrl_lock); - - if (ATTN_LED(ctrl->ctrlcap)) { + if (ATTN_LED(ctrl->ctrlcap)) p_slot->hpc_ops->set_attention_status(p_slot, 1); - wait_for_ctrl_irq (ctrl); - } - if (PWR_LED(ctrl->ctrlcap)) { + if (PWR_LED(ctrl->ctrlcap)) p_slot->hpc_ops->green_led_off(p_slot); - wait_for_ctrl_irq (ctrl); - } - - /* Done with exclusive hardware access */ - mutex_unlock(&ctrl->ctrl_lock); } } /***********SURPRISE REMOVAL********************/ @@ -750,7 +642,6 @@ static void interrupt_event_handler(struct controller *ctrl) } } - int pciehp_enable_slot(struct slot *p_slot) { u8 getstatus = 0; diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index d8f4f1241b5..9fbd9b9f982 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -249,6 +249,24 @@ static void start_int_poll_timer(struct controller *ctrl, int sec) add_timer(&ctrl->poll_timer); } +static inline int pcie_wait_cmd(struct controller *ctrl) +{ + DECLARE_WAITQUEUE(wait, current); + + add_wait_queue(&ctrl->queue, &wait); + if (!pciehp_poll_mode) + /* Sleep for up to 1 second */ + msleep_interruptible(1000); + else + msleep_interruptible(2500); + + remove_wait_queue(&ctrl->queue, &wait); + if (signal_pending(current)) + return -EINTR; + + return 0; +} + static int pcie_write_cmd(struct slot *slot, u16 cmd) { struct controller *ctrl = slot->ctrl; @@ -257,24 +275,34 @@ static int pcie_write_cmd(struct slot *slot, u16 cmd) DBG_ENTER_ROUTINE + mutex_lock(&ctrl->ctrl_lock); + retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (retval) { err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); - return retval; + goto out; } if ((slot_status & CMD_COMPLETED) == CMD_COMPLETED ) { - /* After 1 sec and CMD_COMPLETED still not set, just proceed forward to issue - the next command according to spec. Just print out the error message */ - dbg("%s : CMD_COMPLETED not clear after 1 sec.\n", __FUNCTION__); + /* After 1 sec and CMD_COMPLETED still not set, just + proceed forward to issue the next command according + to spec. Just print out the error message */ + dbg("%s: CMD_COMPLETED not clear after 1 sec.\n", + __FUNCTION__); } retval = pciehp_writew(ctrl, SLOTCTRL, (cmd | CMD_CMPL_INTR_ENABLE)); if (retval) { err("%s: Cannot write to SLOTCTRL register\n", __FUNCTION__); - return retval; + goto out; } + /* + * Wait for command completion. + */ + retval = pcie_wait_cmd(ctrl); + out: + mutex_unlock(&ctrl->ctrl_lock); DBG_LEAVE_ROUTINE return retval; } -- cgit v1.2.3 From 262303fe329a51463925f3749aafc358a4201397 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Thu, 21 Dec 2006 17:01:10 -0800 Subject: pciehp: fix wait command completion This patch fixes this problem that pciehp driver will sleep unnecessarily long when waiting for command completion. With this patch, modprobe pciehp driver becomes very faster as follows for instance. o Without this patch # time /sbin/modprobe pciehp real 0m4.976s user 0m0.000s sys 0m0.004s o With this patch # time /sbin/modprobe pciehp real 0m0.640s user 0m0.000s sys 0m0.004s Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp.h | 1 + drivers/pci/hotplug/pciehp_hpc.c | 27 +++++++++++++++------------ 2 files changed, 16 insertions(+), 12 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 17167d59447..927dba9911e 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -100,6 +100,7 @@ struct controller { u16 vendor_id; u8 cap_base; struct timer_list poll_timer; + volatile int cmd_busy; }; #define INT_BUTTON_IGNORE 0 diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 9fbd9b9f982..eb1862b50bb 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -251,20 +251,21 @@ static void start_int_poll_timer(struct controller *ctrl, int sec) static inline int pcie_wait_cmd(struct controller *ctrl) { - DECLARE_WAITQUEUE(wait, current); - - add_wait_queue(&ctrl->queue, &wait); - if (!pciehp_poll_mode) - /* Sleep for up to 1 second */ - msleep_interruptible(1000); - else - msleep_interruptible(2500); + int retval = 0; + unsigned int msecs = pciehp_poll_mode ? 2500 : 1000; + unsigned long timeout = msecs_to_jiffies(msecs); + int rc; - remove_wait_queue(&ctrl->queue, &wait); - if (signal_pending(current)) - return -EINTR; + rc = wait_event_interruptible_timeout(ctrl->queue, + !ctrl->cmd_busy, timeout); + if (!rc) + dbg("Command not completed in 1000 msec\n"); + else if (rc < 0) { + retval = -EINTR; + info("Command was interrupted by a signal\n"); + } - return 0; + return retval; } static int pcie_write_cmd(struct slot *slot, u16 cmd) @@ -291,6 +292,7 @@ static int pcie_write_cmd(struct slot *slot, u16 cmd) __FUNCTION__); } + ctrl->cmd_busy = 1; retval = pciehp_writew(ctrl, SLOTCTRL, (cmd | CMD_CMPL_INTR_ENABLE)); if (retval) { err("%s: Cannot write to SLOTCTRL register\n", __FUNCTION__); @@ -773,6 +775,7 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) /* * Command Complete Interrupt Pending */ + ctrl->cmd_busy = 0; wake_up_interruptible(&ctrl->queue); } -- cgit v1.2.3 From 34d03419f03bcfdf70d9617a9b90b60c93482c4a Mon Sep 17 00:00:00 2001 From: Kristen Carlson Accardi Date: Tue, 9 Jan 2007 13:02:36 -0800 Subject: PCIEHP: Add Electro Mechanical Interlock (EMI) support to the PCIE hotplug driver. Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/pciehp.h | 5 ++ drivers/pci/hotplug/pciehp_core.c | 103 ++++++++++++++++++++++++++++++++++++++ drivers/pci/hotplug/pciehp_hpc.c | 55 ++++++++++++++++++++ 3 files changed, 163 insertions(+) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 927dba9911e..d19fcae8a7c 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -69,6 +69,7 @@ struct slot { struct hotplug_slot *hotplug_slot; struct list_head slot_list; char name[SLOT_NAME_SIZE]; + unsigned long last_emi_toggle; }; struct event_info { @@ -138,6 +139,7 @@ struct controller { #define ATTN_LED_PRSN 0x00000008 #define PWR_LED_PRSN 0x00000010 #define HP_SUPR_RM_SUP 0x00000020 +#define EMI_PRSN 0x00020000 #define ATTN_BUTTN(cap) (cap & ATTN_BUTTN_PRSN) #define POWER_CTRL(cap) (cap & PWR_CTRL_PRSN) @@ -145,6 +147,7 @@ struct controller { #define ATTN_LED(cap) (cap & ATTN_LED_PRSN) #define PWR_LED(cap) (cap & PWR_LED_PRSN) #define HP_SUPR_RM(cap) (cap & HP_SUPR_RM_SUP) +#define EMI(cap) (cap & EMI_PRSN) extern int pciehp_event_start_thread(void); extern void pciehp_event_stop_thread(void); @@ -182,6 +185,8 @@ struct hpc_ops { int (*set_attention_status)(struct slot *slot, u8 status); int (*get_latch_status)(struct slot *slot, u8 *status); int (*get_adapter_status)(struct slot *slot, u8 *status); + int (*get_emi_status)(struct slot *slot, u8 *status); + int (*toggle_emi)(struct slot *slot); int (*get_max_bus_speed)(struct slot *slot, enum pci_bus_speed *speed); int (*get_cur_bus_speed)(struct slot *slot, enum pci_bus_speed *speed); int (*get_max_lnk_width)(struct slot *slot, enum pcie_link_width *val); diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index f7b8e0504fe..a92eda6e02f 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -34,6 +34,7 @@ #include #include "pciehp.h" #include +#include /* Global variables */ int pciehp_debug; @@ -87,6 +88,95 @@ static struct hotplug_slot_ops pciehp_hotplug_slot_ops = { .get_cur_bus_speed = get_cur_bus_speed, }; +/* + * Check the status of the Electro Mechanical Interlock (EMI) + */ +static int get_lock_status(struct hotplug_slot *hotplug_slot, u8 *value) +{ + struct slot *slot = hotplug_slot->private; + return (slot->hpc_ops->get_emi_status(slot, value)); +} + +/* + * sysfs interface for the Electro Mechanical Interlock (EMI) + * 1 == locked, 0 == unlocked + */ +static ssize_t lock_read_file(struct hotplug_slot *slot, char *buf) +{ + int retval; + u8 value; + + retval = get_lock_status(slot, &value); + if (retval) + goto lock_read_exit; + retval = sprintf (buf, "%d\n", value); + +lock_read_exit: + return retval; +} + +/* + * Change the status of the Electro Mechanical Interlock (EMI) + * This is a toggle - in addition there must be at least 1 second + * in between toggles. + */ +static int set_lock_status(struct hotplug_slot *hotplug_slot, u8 status) +{ + struct slot *slot = hotplug_slot->private; + int retval; + u8 value; + + mutex_lock(&slot->ctrl->crit_sect); + + /* has it been >1 sec since our last toggle? */ + if ((get_seconds() - slot->last_emi_toggle) < 1) + return -EINVAL; + + /* see what our current state is */ + retval = get_lock_status(hotplug_slot, &value); + if (retval || (value == status)) + goto set_lock_exit; + + slot->hpc_ops->toggle_emi(slot); +set_lock_exit: + mutex_unlock(&slot->ctrl->crit_sect); + return 0; +} + +/* + * sysfs interface which allows the user to toggle the Electro Mechanical + * Interlock. Valid values are either 0 or 1. 0 == unlock, 1 == lock + */ +static ssize_t lock_write_file(struct hotplug_slot *slot, const char *buf, + size_t count) +{ + unsigned long llock; + u8 lock; + int retval = 0; + + llock = simple_strtoul(buf, NULL, 10); + lock = (u8)(llock & 0xff); + + switch (lock) { + case 0: + case 1: + retval = set_lock_status(slot, lock); + break; + default: + err ("%d is an invalid lock value\n", lock); + retval = -EINVAL; + } + if (retval) + return retval; + return count; +} + +static struct hotplug_slot_attribute hotplug_slot_attr_lock = { + .attr = {.name = "lock", .mode = S_IFREG | S_IRUGO | S_IWUSR}, + .show = lock_read_file, + .store = lock_write_file +}; + /** * release_slot - free up the memory used by a slot * @hotplug_slot: slot to free @@ -159,6 +249,16 @@ static int init_slots(struct controller *ctrl) err ("pci_hp_register failed with error %d\n", retval); goto error_info; } + /* create additional sysfs entries */ + if (EMI(ctrl->ctrlcap)) { + retval = sysfs_create_file(&hotplug_slot->kobj, + &hotplug_slot_attr_lock.attr); + if (retval) { + pci_hp_deregister(hotplug_slot); + err("cannot create additional sysfs entries\n"); + goto error_info; + } + } list_add(&slot->slot_list, &ctrl->slot_list); } @@ -183,6 +283,9 @@ static void cleanup_slots(struct controller *ctrl) list_for_each_safe(tmp, next, &ctrl->slot_list) { slot = list_entry(tmp, struct slot, slot_list); list_del(&slot->slot_list); + if (EMI(ctrl->ctrlcap)) + sysfs_remove_file(&slot->hotplug_slot->kobj, + &hotplug_slot_attr_lock.attr); pci_hp_deregister(slot->hotplug_slot); } } diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index eb1862b50bb..fbc64aa2dd6 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -35,6 +35,7 @@ #include #include #include +#include #include "../pci.h" #include "pciehp.h" @@ -192,6 +193,7 @@ static inline int pciehp_writel(struct controller *ctrl, int reg, u32 value) #define ATTN_LED_CTRL 0x00C0 #define PWR_LED_CTRL 0x0300 #define PWR_CTRL 0x0400 +#define EMI_CTRL 0x0800 /* Attention indicator and Power indicator states */ #define LED_ON 0x01 @@ -202,6 +204,10 @@ static inline int pciehp_writel(struct controller *ctrl, int reg, u32 value) #define POWER_ON 0 #define POWER_OFF 0x0400 +/* EMI Status defines */ +#define EMI_DISENGAGED 0 +#define EMI_ENGAGED 1 + /* Field definitions in Slot Status Register */ #define ATTN_BUTTN_PRESSED 0x0001 #define PWR_FAULT_DETECTED 0x0002 @@ -210,6 +216,8 @@ static inline int pciehp_writel(struct controller *ctrl, int reg, u32 value) #define CMD_COMPLETED 0x0010 #define MRL_STATE 0x0020 #define PRSN_STATE 0x0040 +#define EMI_STATE 0x0080 +#define EMI_STATUS_BIT 7 static spinlock_t hpc_event_lock; @@ -474,6 +482,51 @@ static int hpc_query_power_fault(struct slot *slot) return pwr_fault; } +static int hpc_get_emi_status(struct slot *slot, u8 *status) +{ + struct controller *ctrl = slot->ctrl; + u16 slot_status; + int retval = 0; + + DBG_ENTER_ROUTINE + + retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); + if (retval) { + err("%s : Cannot check EMI status\n", __FUNCTION__); + return retval; + } + *status = (slot_status & EMI_STATE) >> EMI_STATUS_BIT; + + DBG_LEAVE_ROUTINE + return retval; +} + +static int hpc_toggle_emi(struct slot *slot) +{ + struct controller *ctrl = slot->ctrl; + u16 slot_cmd = 0; + u16 slot_ctrl; + int rc = 0; + + DBG_ENTER_ROUTINE + + rc = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); + if (rc) { + err("%s : hp_register_read_word SLOT_CTRL failed\n", + __FUNCTION__); + return rc; + } + + slot_cmd = (slot_ctrl | EMI_CTRL); + if (!pciehp_poll_mode) + slot_cmd = slot_cmd | HP_INTR_ENABLE; + + pcie_write_cmd(slot, slot_cmd); + slot->last_emi_toggle = get_seconds(); + DBG_LEAVE_ROUTINE + return rc; +} + static int hpc_set_attention_status(struct slot *slot, u8 value) { struct controller *ctrl = slot->ctrl; @@ -1009,6 +1062,8 @@ static struct hpc_ops pciehp_hpc_ops = { .get_attention_status = hpc_get_attention_status, .get_latch_status = hpc_get_latch_status, .get_adapter_status = hpc_get_adapter_status, + .get_emi_status = hpc_get_emi_status, + .toggle_emi = hpc_toggle_emi, .get_max_bus_speed = hpc_get_max_lnk_speed, .get_cur_bus_speed = hpc_get_cur_lnk_speed, -- cgit v1.2.3 From 3d9c18872fa1db5c43ab97d8cbca43775998e49c Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Tue, 9 Jan 2007 13:02:48 -0800 Subject: shpchp: remove CONFIG_HOTPLUG_PCI_SHPC_POLL_EVENT_MODE The CONFIG_HOTPLUG_PCI_SHPC_POLL_EVENT_MODE config option is not needed because polling mechanism for shpc hotplug events can be enabled through module option 'shpchp_poll_mode'. This patch removes CONFIG_HOTPLUG_PCI_SHPC_POLL_EVENT_MODE. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/Kconfig | 9 --------- drivers/pci/hotplug/shpchp_core.c | 4 ---- 2 files changed, 13 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index adce4204d87..be92695a783 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -145,15 +145,6 @@ config HOTPLUG_PCI_SHPC When in doubt, say N. -config HOTPLUG_PCI_SHPC_POLL_EVENT_MODE - bool "Use polling mechanism for hot-plug events (for testing purpose)" - depends on HOTPLUG_PCI_SHPC - help - Say Y here if you want to use the polling mechanism for hot-plug - events for early platform testing. - - When in doubt, say N. - config HOTPLUG_PCI_RPA tristate "RPA PCI Hotplug driver" depends on HOTPLUG_PCI && PPC_PSERIES && PPC64 && !HOTPLUG_PCI_FAKE diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c index 590cd3cbe01..5f4bc08a633 100644 --- a/drivers/pci/hotplug/shpchp_core.c +++ b/drivers/pci/hotplug/shpchp_core.c @@ -401,10 +401,6 @@ static int __init shpcd_init(void) { int retval = 0; -#ifdef CONFIG_HOTPLUG_PCI_SHPC_POLL_EVENT_MODE - shpchp_poll_mode = 1; -#endif - retval = pci_register_driver(&shpc_driver); dbg("%s: pci_register_driver = %d\n", __FUNCTION__, retval); info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); -- cgit v1.2.3 From 1555b33da0b27f933fbe08679935ce9d83c0e9e9 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Tue, 9 Jan 2007 13:03:01 -0800 Subject: shpchp: remove DBG_XXX_ROUTINE This patch removes DBG_ENTER_ROUTINE, DBG_LEAVE_ROUTINE and related code. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/shpchp_hpc.c | 155 +++++---------------------------------- 1 file changed, 19 insertions(+), 136 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index b7bede4b7c2..7e9347eea5b 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -35,38 +35,6 @@ #include "shpchp.h" -#ifdef DEBUG -#define DBG_K_TRACE_ENTRY ((unsigned int)0x00000001) /* On function entry */ -#define DBG_K_TRACE_EXIT ((unsigned int)0x00000002) /* On function exit */ -#define DBG_K_INFO ((unsigned int)0x00000004) /* Info messages */ -#define DBG_K_ERROR ((unsigned int)0x00000008) /* Error messages */ -#define DBG_K_TRACE (DBG_K_TRACE_ENTRY|DBG_K_TRACE_EXIT) -#define DBG_K_STANDARD (DBG_K_INFO|DBG_K_ERROR|DBG_K_TRACE) -/* Redefine this flagword to set debug level */ -#define DEBUG_LEVEL DBG_K_STANDARD - -#define DEFINE_DBG_BUFFER char __dbg_str_buf[256]; - -#define DBG_PRINT( dbg_flags, args... ) \ - do { \ - if ( DEBUG_LEVEL & ( dbg_flags ) ) \ - { \ - int len; \ - len = sprintf( __dbg_str_buf, "%s:%d: %s: ", \ - __FILE__, __LINE__, __FUNCTION__ ); \ - sprintf( __dbg_str_buf + len, args ); \ - printk( KERN_NOTICE "%s\n", __dbg_str_buf ); \ - } \ - } while (0) - -#define DBG_ENTER_ROUTINE DBG_PRINT (DBG_K_TRACE_ENTRY, "%s", "[Entry]"); -#define DBG_LEAVE_ROUTINE DBG_PRINT (DBG_K_TRACE_EXIT, "%s", "[Exit]"); -#else -#define DEFINE_DBG_BUFFER -#define DBG_ENTER_ROUTINE -#define DBG_LEAVE_ROUTINE -#endif /* DEBUG */ - /* Slot Available Register I field definition */ #define SLOT_33MHZ 0x0000001f #define SLOT_66MHZ_PCIX 0x00001f00 @@ -211,7 +179,6 @@ #define SLOT_EVENT_LATCH 0x2 #define SLOT_SERR_INT_MASK 0x3 -DEFINE_DBG_BUFFER /* Debug string buffer for entire HPC defined here */ static atomic_t shpchp_num_controllers = ATOMIC_INIT(0); static irqreturn_t shpc_isr(int irq, void *dev_id); @@ -268,8 +235,6 @@ static void int_poll_timeout(unsigned long data) { struct controller *ctrl = (struct controller *)data; - DBG_ENTER_ROUTINE - /* Poll for interrupt events. regs == NULL => polling */ shpc_isr(0, ctrl); @@ -278,8 +243,6 @@ static void int_poll_timeout(unsigned long data) shpchp_poll_time = 2; /* default polling interval is 2 sec */ start_int_poll_timer(ctrl, shpchp_poll_time); - - DBG_LEAVE_ROUTINE } /* @@ -353,8 +316,6 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd) int retval = 0; u16 temp_word; - DBG_ENTER_ROUTINE - mutex_lock(&slot->ctrl->cmd_lock); if (!shpc_poll_ctrl_busy(ctrl)) { @@ -389,19 +350,13 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd) } out: mutex_unlock(&slot->ctrl->cmd_lock); - - DBG_LEAVE_ROUTINE return retval; } static int hpc_check_cmd_status(struct controller *ctrl) { - u16 cmd_status; int retval = 0; - - DBG_ENTER_ROUTINE - - cmd_status = shpc_readw(ctrl, CMD_STATUS) & 0x000F; + u16 cmd_status = shpc_readw(ctrl, CMD_STATUS) & 0x000F; switch (cmd_status >> 1) { case 0: @@ -423,7 +378,6 @@ static int hpc_check_cmd_status(struct controller *ctrl) retval = cmd_status; } - DBG_LEAVE_ROUTINE return retval; } @@ -431,13 +385,8 @@ static int hpc_check_cmd_status(struct controller *ctrl) static int hpc_get_attention_status(struct slot *slot, u8 *status) { struct controller *ctrl = slot->ctrl; - u32 slot_reg; - u8 state; - - DBG_ENTER_ROUTINE - - slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot)); - state = (slot_reg & ATN_LED_STATE_MASK) >> ATN_LED_STATE_SHIFT; + u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot)); + u8 state = (slot_reg & ATN_LED_STATE_MASK) >> ATN_LED_STATE_SHIFT; switch (state) { case ATN_LED_STATE_ON: @@ -454,20 +403,14 @@ static int hpc_get_attention_status(struct slot *slot, u8 *status) break; } - DBG_LEAVE_ROUTINE return 0; } static int hpc_get_power_status(struct slot * slot, u8 *status) { struct controller *ctrl = slot->ctrl; - u32 slot_reg; - u8 state; - - DBG_ENTER_ROUTINE - - slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot)); - state = (slot_reg & SLOT_STATE_MASK) >> SLOT_STATE_SHIFT; + u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot)); + u8 state = (slot_reg & SLOT_STATE_MASK) >> SLOT_STATE_SHIFT; switch (state) { case SLOT_STATE_PWRONLY: @@ -484,7 +427,6 @@ static int hpc_get_power_status(struct slot * slot, u8 *status) break; } - DBG_LEAVE_ROUTINE return 0; } @@ -492,30 +434,21 @@ static int hpc_get_power_status(struct slot * slot, u8 *status) static int hpc_get_latch_status(struct slot *slot, u8 *status) { struct controller *ctrl = slot->ctrl; - u32 slot_reg; - - DBG_ENTER_ROUTINE + u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot)); - slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot)); *status = !!(slot_reg & MRL_SENSOR); /* 0 -> close; 1 -> open */ - DBG_LEAVE_ROUTINE return 0; } static int hpc_get_adapter_status(struct slot *slot, u8 *status) { struct controller *ctrl = slot->ctrl; - u32 slot_reg; - u8 state; - - DBG_ENTER_ROUTINE + u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot)); + u8 state = (slot_reg & PRSNT_MASK) >> PRSNT_SHIFT; - slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot)); - state = (slot_reg & PRSNT_MASK) >> PRSNT_SHIFT; *status = (state != 0x3) ? 1 : 0; - DBG_LEAVE_ROUTINE return 0; } @@ -523,11 +456,8 @@ static int hpc_get_prog_int(struct slot *slot, u8 *prog_int) { struct controller *ctrl = slot->ctrl; - DBG_ENTER_ROUTINE - *prog_int = shpc_readb(ctrl, PROG_INTERFACE); - DBG_LEAVE_ROUTINE return 0; } @@ -539,8 +469,6 @@ static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value) u8 m66_cap = !!(slot_reg & MHZ66_CAP); u8 pi, pcix_cap; - DBG_ENTER_ROUTINE - if ((retval = hpc_get_prog_int(slot, &pi))) return retval; @@ -582,21 +510,15 @@ static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value) } dbg("Adapter speed = %d\n", *value); - DBG_LEAVE_ROUTINE return retval; } static int hpc_get_mode1_ECC_cap(struct slot *slot, u8 *mode) { - struct controller *ctrl = slot->ctrl; - u16 sec_bus_status; - u8 pi; int retval = 0; - - DBG_ENTER_ROUTINE - - pi = shpc_readb(ctrl, PROG_INTERFACE); - sec_bus_status = shpc_readw(ctrl, SEC_BUS_CONFIG); + struct controller *ctrl = slot->ctrl; + u16 sec_bus_status = shpc_readw(ctrl, SEC_BUS_CONFIG); + u8 pi = shpc_readb(ctrl, PROG_INTERFACE); if (pi == 2) { *mode = (sec_bus_status & 0x0100) >> 8; @@ -605,21 +527,14 @@ static int hpc_get_mode1_ECC_cap(struct slot *slot, u8 *mode) } dbg("Mode 1 ECC cap = %d\n", *mode); - - DBG_LEAVE_ROUTINE return retval; } static int hpc_query_power_fault(struct slot * slot) { struct controller *ctrl = slot->ctrl; - u32 slot_reg; - - DBG_ENTER_ROUTINE - - slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot)); + u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot)); - DBG_LEAVE_ROUTINE /* Note: Logic 0 => fault */ return !(slot_reg & POWER_FAULT); } @@ -666,8 +581,6 @@ static void hpc_release_ctlr(struct controller *ctrl) int i; u32 slot_reg, serr_int; - DBG_ENTER_ROUTINE - /* * Mask event interrupts and SERRs of all slots */ @@ -708,61 +621,43 @@ static void hpc_release_ctlr(struct controller *ctrl) */ if (atomic_dec_and_test(&shpchp_num_controllers)) destroy_workqueue(shpchp_wq); - - DBG_LEAVE_ROUTINE } static int hpc_power_on_slot(struct slot * slot) { int retval; - DBG_ENTER_ROUTINE - retval = shpc_write_cmd(slot, slot->hp_slot, SET_SLOT_PWR); - if (retval) { + if (retval) err("%s: Write command failed!\n", __FUNCTION__); - return retval; - } - - DBG_LEAVE_ROUTINE - return 0; + return retval; } static int hpc_slot_enable(struct slot * slot) { int retval; - DBG_ENTER_ROUTINE - /* Slot - Enable, Power Indicator - Blink, Attention Indicator - Off */ retval = shpc_write_cmd(slot, slot->hp_slot, SET_SLOT_ENABLE | SET_PWR_BLINK | SET_ATTN_OFF); - if (retval) { + if (retval) err("%s: Write command failed!\n", __FUNCTION__); - return retval; - } - DBG_LEAVE_ROUTINE - return 0; + return retval; } static int hpc_slot_disable(struct slot * slot) { int retval; - DBG_ENTER_ROUTINE - /* Slot - Disable, Power Indicator - Off, Attention Indicator - On */ retval = shpc_write_cmd(slot, slot->hp_slot, SET_SLOT_DISABLE | SET_PWR_OFF | SET_ATTN_ON); - if (retval) { + if (retval) err("%s: Write command failed!\n", __FUNCTION__); - return retval; - } - DBG_LEAVE_ROUTINE - return 0; + return retval; } static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value) @@ -771,8 +666,6 @@ static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value) struct controller *ctrl = slot->ctrl; u8 pi, cmd; - DBG_ENTER_ROUTINE - pi = shpc_readb(ctrl, PROG_INTERFACE); if ((pi == 1) && (value > PCI_SPEED_133MHz_PCIX)) return -EINVAL; @@ -828,7 +721,6 @@ static int hpc_set_bus_speed_mode(struct slot * slot, enum pci_bus_speed value) if (retval) err("%s: Write command failed!\n", __FUNCTION__); - DBG_LEAVE_ROUTINE return retval; } @@ -920,8 +812,6 @@ static int hpc_get_max_bus_speed (struct slot *slot, enum pci_bus_speed *value) u32 slot_avail1 = shpc_readl(ctrl, SLOT_AVAIL1); u32 slot_avail2 = shpc_readl(ctrl, SLOT_AVAIL2); - DBG_ENTER_ROUTINE - if (pi == 2) { if (slot_avail2 & SLOT_133MHZ_PCIX_533) bus_speed = PCI_SPEED_133MHz_PCIX_533; @@ -954,7 +844,7 @@ static int hpc_get_max_bus_speed (struct slot *slot, enum pci_bus_speed *value) *value = bus_speed; dbg("Max bus speed = %d\n", bus_speed); - DBG_LEAVE_ROUTINE + return retval; } @@ -967,8 +857,6 @@ static int hpc_get_cur_bus_speed (struct slot *slot, enum pci_bus_speed *value) u8 pi = shpc_readb(ctrl, PROG_INTERFACE); u8 speed_mode = (pi == 2) ? (sec_bus_reg & 0xF) : (sec_bus_reg & 0x7); - DBG_ENTER_ROUTINE - if ((pi == 1) && (speed_mode > 4)) { *value = PCI_SPEED_UNKNOWN; return -ENODEV; @@ -1024,7 +912,6 @@ static int hpc_get_cur_bus_speed (struct slot *slot, enum pci_bus_speed *value) } dbg("Current bus speed = %d\n", bus_speed); - DBG_LEAVE_ROUTINE return retval; } @@ -1061,8 +948,6 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) u32 tempdword, slot_reg, slot_config; u8 i; - DBG_ENTER_ROUTINE - ctrl->pci_dev = pdev; /* pci_dev of the P2P bridge */ if ((pdev->vendor == PCI_VENDOR_ID_AMD) || (pdev->device == @@ -1235,13 +1120,11 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) dbg("%s: SERR_INTR_ENABLE = %x\n", __FUNCTION__, tempdword); } - DBG_LEAVE_ROUTINE return 0; /* We end up here for the many possible ways to fail this API. */ abort_iounmap: iounmap(ctrl->creg); abort: - DBG_LEAVE_ROUTINE return rc; } -- cgit v1.2.3 From 9f593e30b318719b0e3889c730cc3a2d0729a707 Mon Sep 17 00:00:00 2001 From: Kenji Kaneshige Date: Tue, 9 Jan 2007 13:03:10 -0800 Subject: shpchp: delete trailing whitespace This patch deletes trailing white space in SHPCHP driver. This has no functional change. Signed-off-by: Kenji Kaneshige Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/shpchp.h | 4 ++-- drivers/pci/hotplug/shpchp_ctrl.c | 20 ++++++++++---------- drivers/pci/hotplug/shpchp_hpc.c | 32 ++++++++++++++++---------------- 3 files changed, 28 insertions(+), 28 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h index 3ca6a4f574b..01d31a1f697 100644 --- a/drivers/pci/hotplug/shpchp.h +++ b/drivers/pci/hotplug/shpchp.h @@ -106,7 +106,7 @@ struct controller { }; /* Define AMD SHPC ID */ -#define PCI_DEVICE_ID_AMD_GOLAM_7450 0x7450 +#define PCI_DEVICE_ID_AMD_GOLAM_7450 0x7450 #define PCI_DEVICE_ID_AMD_POGO_7458 0x7458 /* AMD PCIX bridge registers */ @@ -221,7 +221,7 @@ enum ctrl_offsets { }; static inline struct slot *get_slot(struct hotplug_slot *hotplug_slot) -{ +{ return hotplug_slot->private; } diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c index 6bb84734cd6..b746bd265bc 100644 --- a/drivers/pci/hotplug/shpchp_ctrl.c +++ b/drivers/pci/hotplug/shpchp_ctrl.c @@ -64,7 +64,7 @@ u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl) /* Attention Button Change */ dbg("shpchp: Attention button interrupt received.\n"); - + p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save)); @@ -128,7 +128,7 @@ u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl) p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset); - /* + /* * Save the presence state */ p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save)); @@ -184,12 +184,12 @@ u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl) return 1; } -/* The following routines constitute the bulk of the +/* The following routines constitute the bulk of the hotplug controller logic */ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot, enum pci_bus_speed speed) -{ +{ int rc = 0; dbg("%s: change to speed %d\n", __FUNCTION__, speed); @@ -204,7 +204,7 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot, static int fix_bus_speed(struct controller *ctrl, struct slot *pslot, u8 flag, enum pci_bus_speed asp, enum pci_bus_speed bsp, enum pci_bus_speed msp) -{ +{ int rc = 0; /* @@ -257,23 +257,23 @@ static int board_added(struct slot *p_slot) err("%s: Failed to power on slot\n", __FUNCTION__); return -1; } - + if ((ctrl->pci_dev->vendor == 0x8086) && (ctrl->pci_dev->device == 0x0332)) { if (slots_not_empty) return WRONG_BUS_FREQUENCY; - + if ((rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz))) { err("%s: Issue of set bus speed mode command failed\n", __FUNCTION__); return WRONG_BUS_FREQUENCY; } - + /* turn on board, blink green LED, turn off Amber LED */ if ((rc = p_slot->hpc_ops->slot_enable(p_slot))) { err("%s: Issue of Slot Enable command failed\n", __FUNCTION__); return rc; } } - + rc = p_slot->hpc_ops->get_adapter_speed(p_slot, &asp); if (rc) { err("%s: Can't get adapter speed or bus mode mismatch\n", @@ -378,7 +378,7 @@ static int remove_board(struct slot *p_slot) err("%s: Issue of Slot Disable command failed\n", __FUNCTION__); return rc; } - + rc = p_slot->hpc_ops->set_attention_status(p_slot, 0); if (rc) { err("%s: Issue of Set Attention command failed\n", __FUNCTION__); diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index 7e9347eea5b..5183a45d45b 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -329,9 +329,9 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd) ++t_slot; temp_word = (t_slot << 8) | (cmd & 0xFF); dbg("%s: t_slot %x cmd %x\n", __FUNCTION__, t_slot, cmd); - + /* To make sure the Controller Busy bit is 0 before we send out the - * command. + * command. */ shpc_writew(ctrl, CMD, temp_word); @@ -357,7 +357,7 @@ static int hpc_check_cmd_status(struct controller *ctrl) { int retval = 0; u16 cmd_status = shpc_readw(ctrl, CMD_STATUS) & 0x000F; - + switch (cmd_status >> 1) { case 0: retval = 0; @@ -544,7 +544,7 @@ static int hpc_set_attention_status(struct slot *slot, u8 value) u8 slot_cmd = 0; switch (value) { - case 0 : + case 0 : slot_cmd = SET_ATTN_OFF; /* OFF */ break; case 1: @@ -735,7 +735,7 @@ static irqreturn_t shpc_isr(int irq, void *dev_id) if (!intr_loc) return IRQ_NONE; - dbg("%s: intr_loc = %x\n",__FUNCTION__, intr_loc); + dbg("%s: intr_loc = %x\n",__FUNCTION__, intr_loc); if(!shpchp_poll_mode) { /* @@ -748,12 +748,12 @@ static irqreturn_t shpc_isr(int irq, void *dev_id) shpc_writel(ctrl, SERR_INTR_ENABLE, serr_int); intr_loc2 = shpc_readl(ctrl, INTR_LOC); - dbg("%s: intr_loc2 = %x\n",__FUNCTION__, intr_loc2); + dbg("%s: intr_loc2 = %x\n",__FUNCTION__, intr_loc2); } if (intr_loc & CMD_INTR_PENDING) { - /* - * Command Complete Interrupt Pending + /* + * Command Complete Interrupt Pending * RO only - clear by writing 1 to the Command Completion * Detect bit in Controller SERR-INT register */ @@ -767,7 +767,7 @@ static irqreturn_t shpc_isr(int irq, void *dev_id) if (!(intr_loc & ~CMD_INTR_PENDING)) goto out; - for (hp_slot = 0; hp_slot < ctrl->num_slots; hp_slot++) { + for (hp_slot = 0; hp_slot < ctrl->num_slots; hp_slot++) { /* To find out which slot has interrupt pending */ if (!(intr_loc & SLOT_INTR_PENDING(hp_slot))) continue; @@ -799,7 +799,7 @@ static irqreturn_t shpc_isr(int irq, void *dev_id) serr_int &= ~(GLOBAL_INTR_MASK | SERR_INTR_RSVDZ_MASK); shpc_writel(ctrl, SERR_INTR_ENABLE, serr_int); } - + return IRQ_HANDLED; } @@ -919,7 +919,7 @@ static struct hpc_ops shpchp_hpc_ops = { .power_on_slot = hpc_power_on_slot, .slot_enable = hpc_slot_enable, .slot_disable = hpc_slot_disable, - .set_bus_speed_mode = hpc_set_bus_speed_mode, + .set_bus_speed_mode = hpc_set_bus_speed_mode, .set_attention_status = hpc_set_attention_status, .get_power_status = hpc_get_power_status, .get_attention_status = hpc_get_attention_status, @@ -936,7 +936,7 @@ static struct hpc_ops shpchp_hpc_ops = { .green_led_on = hpc_set_green_led_on, .green_led_off = hpc_set_green_led_off, .green_led_blink = hpc_set_green_led_blink, - + .release_ctlr = hpc_release_ctlr, }; @@ -993,9 +993,9 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) ctrl->mmio_size = 0x24 + 0x4 * num_slots; } - info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n", pdev->vendor, pdev->device, pdev->subsystem_vendor, + info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n", pdev->vendor, pdev->device, pdev->subsystem_vendor, pdev->subsystem_device); - + rc = pci_enable_device(pdev); if (rc) { err("%s: pci_enable_device failed\n", __FUNCTION__); @@ -1057,7 +1057,7 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) slot_reg &= ~SLOT_REG_RSVDZ_MASK; shpc_writel(ctrl, SLOT_REG(hp_slot), slot_reg); } - + if (shpchp_poll_mode) { /* Install interrupt polling timer. Start with 10 sec delay */ init_timer(&ctrl->poll_timer); @@ -1069,7 +1069,7 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) info("Can't get msi for the hotplug controller\n"); info("Use INTx for the hotplug controller\n"); } - + rc = request_irq(ctrl->pci_dev->irq, shpc_isr, IRQF_SHARED, MY_NAME, (void *)ctrl); dbg("%s: request_irq %d for hpc%d (returns %d)\n", -- cgit v1.2.3 From 15a260d53f7ca026e45109d2c2bec8c4b087780b Mon Sep 17 00:00:00 2001 From: Daniel Yeisley Date: Thu, 21 Dec 2006 14:34:57 -0500 Subject: PCI Quirk: 1k I/O space IOBL_ADR fix on P64H2 There's an existing quirk for the kernel to use 1k IO space granularity on the Intel P64H2. It turns out however that pci_setup_bridge() in drivers/pci/setup-bus.c reads in the IO base and limit address register masks it off to the nearest 4k, and writes it back. This causes the kernel to be on 1k boundaries and the hardware to be 4k aligned. The patch below fixes the problem. Signed-off-by: Dan Yeisley Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 1d04ca02dd0..47214fdfa6c 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1670,6 +1670,31 @@ static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev) } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io); +/* Fix the IOBL_ADR for 1k I/O space granularity on the Intel P64H2 + * The IOBL_ADR gets re-written to 4k boundaries in pci_setup_bridge() + * in drivers/pci/setup-bus.c + */ +static void __devinit quirk_p64h2_1k_io_fix_iobl(struct pci_dev *dev) +{ + u16 en1k, iobl_adr, iobl_adr_1k; + struct resource *res = dev->resource + PCI_BRIDGE_RESOURCES; + + pci_read_config_word(dev, 0x40, &en1k); + + if (en1k & 0x200) { + pci_read_config_word(dev, PCI_IO_BASE, &iobl_adr); + + iobl_adr_1k = iobl_adr | (res->start >> 8) | (res->end & 0xfc00); + + if (iobl_adr != iobl_adr_1k) { + printk(KERN_INFO "PCI: Fixing P64H2 IOBL_ADR from 0x%x to 0x%x for 1 KB Granularity\n", + iobl_adr,iobl_adr_1k); + pci_write_config_word(dev, PCI_IO_BASE, iobl_adr_1k); + } + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io_fix_iobl); + /* Under some circumstances, AER is not linked with extended capabilities. * Force it to be linked by setting the corresponding control bit in the * config space. -- cgit v1.2.3 From 2f2d39d2843570e81be6d53da6052f6752dc3c45 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Fri, 5 Jan 2007 11:23:15 +0100 Subject: PCI: Speed up the Intel SMBus unhiding quirk Speed up the Intel SMBus PCI quirk by avoiding tests which can only fail. This also makes the compiled code significantly smaller when using gcc 3.2/3.4. gcc 4.x appears to optimize the code by itself so this change doesn't make a difference there. Signed-off-by: Jean Delvare Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 47214fdfa6c..e5cc6a40ed4 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -977,52 +977,51 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev) case 0x1626: /* L3C notebook */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) + else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) switch(dev->subsystem_device) { case 0x80b1: /* P4GE-V */ case 0x80b2: /* P4PE */ case 0x8093: /* P4B533-V */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB) + else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB) switch(dev->subsystem_device) { case 0x8030: /* P4T533 */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_7205_0) + else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0) switch (dev->subsystem_device) { case 0x8070: /* P4G8X Deluxe */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH) + else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH) switch (dev->subsystem_device) { case 0x80c9: /* PU-DLS */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB) + else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB) switch (dev->subsystem_device) { case 0x1751: /* M2N notebook */ case 0x1821: /* M5N notebook */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) + else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) switch (dev->subsystem_device) { case 0x184b: /* W1N notebook */ case 0x186a: /* M6Ne notebook */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) + else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) switch (dev->subsystem_device) { case 0x80f2: /* P4P800-X */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) { + else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) switch (dev->subsystem_device) { case 0x1882: /* M6V notebook */ case 0x1977: /* A6VA notebook */ asus_hides_smbus = 1; } - } } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) { if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) switch(dev->subsystem_device) { @@ -1030,25 +1029,24 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev) case 0x0890: /* HP Compaq nc6000 */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) + else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) switch (dev->subsystem_device) { case 0x12bc: /* HP D330L */ case 0x12bd: /* HP D530 */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) { + else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) switch (dev->subsystem_device) { case 0x099c: /* HP Compaq nx6110 */ asus_hides_smbus = 1; } - } } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_TOSHIBA)) { if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB) switch(dev->subsystem_device) { case 0x0001: /* Toshiba Satellite A40 */ asus_hides_smbus = 1; } - if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) + else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) switch(dev->subsystem_device) { case 0x0001: /* Toshiba Tecra M2 */ asus_hides_smbus = 1; -- cgit v1.2.3 From 1863100a0244828f78e5e47b22b93ca912e80963 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sun, 14 Jan 2007 14:46:32 +0100 Subject: PCI: remove quirk_sis_96x_compatible() Since 2.6.0-test10, all quirk_sis_96x_compatible() had any effect on was a printk(). This patch therefore removes it. Signed-off-by: Adrian Bunk Acked-by: Mark M. Hoffman Signed-off-by: Greg Kroah-Hartman --- drivers/pci/quirks.c | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index e5cc6a40ed4..d0c35933507 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1152,8 +1152,6 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_ * * We can also enable the sis96x bit in the discovery register.. */ -static int __devinitdata sis_96x_compatible = 0; - #define SIS_DETECT_REGISTER 0x40 static void quirk_sis_503(struct pci_dev *dev) @@ -1169,9 +1167,6 @@ static void quirk_sis_503(struct pci_dev *dev) return; } - /* Make people aware that we changed the config.. */ - printk(KERN_WARNING "Uncovering SIS%x that hid as a SIS503 (compatible=%d)\n", devid, sis_96x_compatible); - /* * Ok, it now shows up as a 96x.. run the 96x quirk by * hand in case it has already been processed. @@ -1183,16 +1178,6 @@ static void quirk_sis_503(struct pci_dev *dev) DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 ); DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503 ); -static void __init quirk_sis_96x_compatible(struct pci_dev *dev) -{ - sis_96x_compatible = 1; -} -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_645, quirk_sis_96x_compatible ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_646, quirk_sis_96x_compatible ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_648, quirk_sis_96x_compatible ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_650, quirk_sis_96x_compatible ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_651, quirk_sis_96x_compatible ); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_735, quirk_sis_96x_compatible ); /* * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller -- cgit v1.2.3 From 8255cf35d503db7c1b26ae53b6b7f23ada82316f Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 6 Jan 2007 21:48:41 +0100 Subject: PCI: make isa_bridge Alpha-only Since isa_bridge is neither assigned any value !NULL nor used on !Alpha, there's no reason for providing it. Signed-off-by: Adrian Bunk Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index caeeacc7b07..e91dcc05b79 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1224,12 +1224,6 @@ early_param("pci", pci_setup); device_initcall(pci_init); -#if defined(CONFIG_ISA) || defined(CONFIG_EISA) -/* FIXME: Some boxes have multiple ISA bridges! */ -struct pci_dev *isa_bridge; -EXPORT_SYMBOL(isa_bridge); -#endif - EXPORT_SYMBOL_GPL(pci_restore_bars); EXPORT_SYMBOL(pci_enable_device_bars); EXPORT_SYMBOL(pci_enable_device); -- cgit v1.2.3 From c54c18790700b8b2a503945d729aa425c25691fe Mon Sep 17 00:00:00 2001 From: Satoru Takeuchi Date: Thu, 18 Jan 2007 13:50:05 +0900 Subject: PCI: cleanup MSI code Cleanup MSI code as follows: - fix some types - fix strange local variable definition - delete unnecessary blank line - add comment to #endif which is far from corresponding #ifdef Signed-off-by: Satoru Takeuchi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index ed3f7e1a563..e87e8efb9bb 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -49,8 +49,8 @@ static void msi_set_mask_bit(unsigned int irq, int flag) switch (entry->msi_attrib.type) { case PCI_CAP_ID_MSI: if (entry->msi_attrib.maskbit) { - int pos; - u32 mask_bits; + int pos; + u32 mask_bits; pos = (long)entry->mask_base; pci_read_config_dword(entry->dev, pos, &mask_bits); @@ -162,6 +162,7 @@ void unmask_msi_irq(unsigned int irq) } static int msi_free_irq(struct pci_dev* dev, int irq); + static int msi_init(void) { static int status = -ENOMEM; @@ -291,7 +292,7 @@ static int msi_lookup_irq(struct pci_dev *dev, int type) continue; spin_unlock_irqrestore(&msi_lock, flags); /* This pre-assigned MSI irq for this device - already exits. Override dev->irq with this irq */ + already exists. Override dev->irq with this irq */ dev->irq = irq; return 0; } @@ -458,7 +459,7 @@ void pci_restore_msix_state(struct pci_dev *dev) pci_write_config_word(dev, msi_control_reg(pos), save); enable_msi_mode(dev, pos, PCI_CAP_ID_MSIX); } -#endif +#endif /* CONFIG_PM */ /** * msi_capability_init - configure device's MSI capability structure -- cgit v1.2.3 From e36c455c2f5fee08fed395e94c7ab156cd159360 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Tue, 16 Jan 2007 12:17:13 +0100 Subject: PCI: power management: remove noise on non-manageable hw Return early from pci_set_power_state() if hardware does not support power management. This way, we do not generate noise in the logs. Signed-off-by: Pavel Machek Signed-off-by: Greg Kroah-Hartman --- drivers/pci/pci.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index e91dcc05b79..7ae70902445 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -392,6 +392,14 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) if (state > PCI_D3hot) state = PCI_D3hot; + /* + * If the device or the parent bridge can't support PCI PM, ignore + * the request if we're doing anything besides putting it into D0 + * (which would only happen on boot). + */ + if ((state == PCI_D1 || state == PCI_D2) && pci_no_d1d2(dev)) + return 0; + /* Validate current state: * Can enter D0 from any state, but if we can only go deeper * to sleep if we're already in a low power state @@ -403,13 +411,6 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) } else if (dev->current_state == state) return 0; /* we're already there */ - /* - * If the device or the parent bridge can't support PCI PM, ignore - * the request if we're doing anything besides putting it into D0 - * (which would only happen on boot). - */ - if ((state == PCI_D1 || state == PCI_D2) && pci_no_d1d2(dev)) - return 0; /* find PCI PM capability in list */ pm = pci_find_capability(dev, PCI_CAP_ID_PM); -- cgit v1.2.3 From 88187dfa4d8bb565df762f272511d2c91e427e0d Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Thu, 25 Jan 2007 19:34:07 +1100 Subject: MSI: Replace pci_msi_quirk with calls to pci_no_msi() I don't see any reason why we need pci_msi_quirk, quirk code can just call pci_no_msi() instead. Remove the check of pci_msi_quirk in msi_init(). This is safe as all calls to msi_init() are protected by calls to pci_msi_supported(), which checks pci_msi_enable, which is disabled by pci_no_msi(). The pci_disable_msi routines didn't check pci_msi_quirk, only pci_msi_enable, but as far as I can see that was a bug not a feature. Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 7 ------- drivers/pci/pci.h | 6 +----- drivers/pci/quirks.c | 7 ++----- 3 files changed, 3 insertions(+), 17 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index e87e8efb9bb..3776531586d 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -170,13 +170,6 @@ static int msi_init(void) if (!status) return status; - if (pci_msi_quirk) { - pci_msi_enable = 0; - printk(KERN_WARNING "PCI: MSI quirk detected. MSI disabled.\n"); - status = -EINVAL; - return status; - } - status = msi_cache_init(); if (status < 0) { pci_msi_enable = 0; diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 783e81f81f5..4948db0f810 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -43,12 +43,8 @@ extern void pci_remove_legacy_files(struct pci_bus *bus); /* Lock for read/write access to pci device and bus lists */ extern struct rw_semaphore pci_bus_sem; -#ifdef CONFIG_PCI_MSI -extern int pci_msi_quirk; -#else -#define pci_msi_quirk 0 -#endif extern unsigned int pci_pm_d3_delay; + #ifdef CONFIG_PCI_MSI void disable_msi_mode(struct pci_dev *dev, int pos, int type); void pci_no_msi(void); diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index d0c35933507..0d0ba2fad5f 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1700,9 +1700,6 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, quirk_nvidia_ck804_pcie_aer_ext_cap); #ifdef CONFIG_PCI_MSI -/* To disable MSI globally */ -int pci_msi_quirk; - /* The Serverworks PCI-X chipset does not support MSI. We cannot easily rely * on setting PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually * some other busses controlled by the chipset even if Linux is not aware of it. @@ -1711,8 +1708,8 @@ int pci_msi_quirk; */ static void __init quirk_svw_msi(struct pci_dev *dev) { - pci_msi_quirk = 1; - printk(KERN_WARNING "PCI: MSI quirk detected. pci_msi_quirk set.\n"); + pci_no_msi(); + printk(KERN_WARNING "PCI: MSI quirk detected. MSI deactivated.\n"); } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_svw_msi); -- cgit v1.2.3 From 0fcfdabbdbedb3bdc63f29209aeeac805df78a92 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Thu, 25 Jan 2007 19:34:08 +1100 Subject: MSI: Remove pci_scan_msi_device() pci_scan_msi_device() doesn't do anything anymore, so remove it. Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 6 ------ drivers/pci/probe.c | 1 - 2 files changed, 7 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 3776531586d..6cfa6be9a6d 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -294,12 +294,6 @@ static int msi_lookup_irq(struct pci_dev *dev, int type) return -EACCES; } -void pci_scan_msi_device(struct pci_dev *dev) -{ - if (!dev) - return; -} - #ifdef CONFIG_PM int pci_save_msi_state(struct pci_dev *dev) { diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 9d778842864..2fe1d690eb1 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -945,7 +945,6 @@ pci_scan_single_device(struct pci_bus *bus, int devfn) return NULL; pci_device_add(dev, bus); - pci_scan_msi_device(dev); return dev; } -- cgit v1.2.3 From 8fed4b65236c44d090bd62f2d14938ae791e0260 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Thu, 25 Jan 2007 19:34:08 +1100 Subject: MSI: Combine pci_(save|restore)_msi/msix_state The PCI save/restore code doesn't need to care about MSI vs MSI-X, all it really wants is to say "save/restore all MSI(-X) info for this device". This is borne out in the code, we call the MSI and MSI-X save routines side by side, and similarly with the restore routines. So combine the MSI/MSI-X routines into pci_save_msi_state() and pci_restore_msi_state(). It is up to those routines to decide what state needs to be saved. Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 27 +++++++++++++++++++++++---- drivers/pci/pci.c | 4 +--- drivers/pci/pci.h | 6 ++---- 3 files changed, 26 insertions(+), 11 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 6cfa6be9a6d..067ae9917fd 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -295,7 +295,7 @@ static int msi_lookup_irq(struct pci_dev *dev, int type) } #ifdef CONFIG_PM -int pci_save_msi_state(struct pci_dev *dev) +static int __pci_save_msi_state(struct pci_dev *dev) { int pos, i = 0; u16 control; @@ -333,7 +333,7 @@ int pci_save_msi_state(struct pci_dev *dev) return 0; } -void pci_restore_msi_state(struct pci_dev *dev) +static void __pci_restore_msi_state(struct pci_dev *dev) { int i = 0, pos; u16 control; @@ -361,7 +361,7 @@ void pci_restore_msi_state(struct pci_dev *dev) kfree(save_state); } -int pci_save_msix_state(struct pci_dev *dev) +static int __pci_save_msix_state(struct pci_dev *dev) { int pos; int temp; @@ -409,7 +409,20 @@ int pci_save_msix_state(struct pci_dev *dev) return 0; } -void pci_restore_msix_state(struct pci_dev *dev) +int pci_save_msi_state(struct pci_dev *dev) +{ + int rc; + + rc = __pci_save_msi_state(dev); + if (rc) + return rc; + + rc = __pci_save_msix_state(dev); + + return rc; +} + +static void __pci_restore_msix_state(struct pci_dev *dev) { u16 save; int pos; @@ -446,6 +459,12 @@ void pci_restore_msix_state(struct pci_dev *dev) pci_write_config_word(dev, msi_control_reg(pos), save); enable_msi_mode(dev, pos, PCI_CAP_ID_MSIX); } + +void pci_restore_msi_state(struct pci_dev *dev) +{ + __pci_restore_msi_state(dev); + __pci_restore_msix_state(dev); +} #endif /* CONFIG_PM */ /** diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 7ae70902445..84c757ba066 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -634,8 +634,6 @@ pci_save_state(struct pci_dev *dev) pci_read_config_dword(dev, i * 4,&dev->saved_config_space[i]); if ((i = pci_save_msi_state(dev)) != 0) return i; - if ((i = pci_save_msix_state(dev)) != 0) - return i; if ((i = pci_save_pcie_state(dev)) != 0) return i; if ((i = pci_save_pcix_state(dev)) != 0) @@ -673,7 +671,7 @@ pci_restore_state(struct pci_dev *dev) } pci_restore_pcix_state(dev); pci_restore_msi_state(dev); - pci_restore_msix_state(dev); + return 0; } diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 4948db0f810..a4f2d580625 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -52,17 +52,15 @@ void pci_no_msi(void); static inline void disable_msi_mode(struct pci_dev *dev, int pos, int type) { } static inline void pci_no_msi(void) { } #endif + #if defined(CONFIG_PCI_MSI) && defined(CONFIG_PM) int pci_save_msi_state(struct pci_dev *dev); -int pci_save_msix_state(struct pci_dev *dev); void pci_restore_msi_state(struct pci_dev *dev); -void pci_restore_msix_state(struct pci_dev *dev); #else static inline int pci_save_msi_state(struct pci_dev *dev) { return 0; } -static inline int pci_save_msix_state(struct pci_dev *dev) { return 0; } static inline void pci_restore_msi_state(struct pci_dev *dev) {} -static inline void pci_restore_msix_state(struct pci_dev *dev) {} #endif + static inline int pci_no_d1d2(struct pci_dev *dev) { unsigned int parent_dstates = 0; -- cgit v1.2.3 From ded86d8d37736df67ddeec4ae00e2ec1a5a90b3c Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sun, 28 Jan 2007 12:42:52 -0700 Subject: msi: Kill msi_lookup_irq The function msi_lookup_irq was horrible. As a side effect of running it changed dev->irq, and then the callers would need to change it back. In addition it does a global scan through all of the irqs, which seems to be the sole justification of the msi_lock. To remove the neede for msi_lookup_irq I added first_msi_irq to struct pci_dev. Then depending on the context I replaced msi_lookup_irq with dev->first_msi_irq, dev->msi_enabled, or dev->msix_enabled. msi_enabled and msix_enabled were already present in pci_dev for other reasons. Signed-off-by: Eric W. Biederman Acked-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 149 +++++++++++++++++++++--------------------------------- 1 file changed, 59 insertions(+), 90 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 067ae9917fd..b945470bef1 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -272,28 +272,6 @@ void disable_msi_mode(struct pci_dev *dev, int pos, int type) pci_intx(dev, 1); /* enable intx */ } -static int msi_lookup_irq(struct pci_dev *dev, int type) -{ - int irq; - unsigned long flags; - - spin_lock_irqsave(&msi_lock, flags); - for (irq = 0; irq < NR_IRQS; irq++) { - if (!msi_desc[irq] || msi_desc[irq]->dev != dev || - msi_desc[irq]->msi_attrib.type != type || - msi_desc[irq]->msi_attrib.default_irq != dev->irq) - continue; - spin_unlock_irqrestore(&msi_lock, flags); - /* This pre-assigned MSI irq for this device - already exists. Override dev->irq with this irq */ - dev->irq = irq; - return 0; - } - spin_unlock_irqrestore(&msi_lock, flags); - - return -EACCES; -} - #ifdef CONFIG_PM static int __pci_save_msi_state(struct pci_dev *dev) { @@ -364,11 +342,13 @@ static void __pci_restore_msi_state(struct pci_dev *dev) static int __pci_save_msix_state(struct pci_dev *dev) { int pos; - int temp; int irq, head, tail = 0; u16 control; struct pci_cap_saved_state *save_state; + if (!dev->msix_enabled) + return 0; + pos = pci_find_capability(dev, PCI_CAP_ID_MSIX); if (pos <= 0 || dev->no_msi) return 0; @@ -386,13 +366,7 @@ static int __pci_save_msix_state(struct pci_dev *dev) *((u16 *)&save_state->data[0]) = control; /* save the table */ - temp = dev->irq; - if (msi_lookup_irq(dev, PCI_CAP_ID_MSIX)) { - kfree(save_state); - return -EINVAL; - } - - irq = head = dev->irq; + irq = head = dev->first_msi_irq; while (head != tail) { struct msi_desc *entry; @@ -402,7 +376,6 @@ static int __pci_save_msix_state(struct pci_dev *dev) tail = msi_desc[irq]->link.tail; irq = tail; } - dev->irq = temp; save_state->cap_nr = PCI_CAP_ID_MSIX; pci_add_saved_cap(dev, save_state); @@ -428,9 +401,11 @@ static void __pci_restore_msix_state(struct pci_dev *dev) int pos; int irq, head, tail = 0; struct msi_desc *entry; - int temp; struct pci_cap_saved_state *save_state; + if (!dev->msix_enabled) + return; + save_state = pci_find_saved_cap(dev, PCI_CAP_ID_MSIX); if (!save_state) return; @@ -443,10 +418,7 @@ static void __pci_restore_msix_state(struct pci_dev *dev) return; /* route the table */ - temp = dev->irq; - if (msi_lookup_irq(dev, PCI_CAP_ID_MSIX)) - return; - irq = head = dev->irq; + irq = head = dev->first_msi_irq; while (head != tail) { entry = msi_desc[irq]; write_msi_msg(irq, &entry->msg_save); @@ -454,7 +426,6 @@ static void __pci_restore_msix_state(struct pci_dev *dev) tail = msi_desc[irq]->link.tail; irq = tail; } - dev->irq = temp; pci_write_config_word(dev, msi_control_reg(pos), save); enable_msi_mode(dev, pos, PCI_CAP_ID_MSIX); @@ -524,6 +495,7 @@ static int msi_capability_init(struct pci_dev *dev) return status; } + dev->first_msi_irq = irq; attach_msi_entry(entry, irq); /* Set MSI enabled bits */ enable_msi_mode(dev, pos, PCI_CAP_ID_MSI); @@ -620,6 +592,7 @@ static int msix_capability_init(struct pci_dev *dev, avail = -EBUSY; return avail; } + dev->first_msi_irq = entries[0].vector; /* Set MSI-X enabled bits */ enable_msi_mode(dev, pos, PCI_CAP_ID_MSIX); @@ -667,13 +640,11 @@ int pci_msi_supported(struct pci_dev * dev) **/ int pci_enable_msi(struct pci_dev* dev) { - int pos, temp, status; + int pos, status; if (pci_msi_supported(dev) < 0) return -EINVAL; - temp = dev->irq; - status = msi_init(); if (status < 0) return status; @@ -682,15 +653,14 @@ int pci_enable_msi(struct pci_dev* dev) if (!pos) return -EINVAL; - WARN_ON(!msi_lookup_irq(dev, PCI_CAP_ID_MSI)); + WARN_ON(!!dev->msi_enabled); /* Check whether driver already requested for MSI-X irqs */ pos = pci_find_capability(dev, PCI_CAP_ID_MSIX); - if (pos > 0 && !msi_lookup_irq(dev, PCI_CAP_ID_MSIX)) { + if (pos > 0 && dev->msix_enabled) { printk(KERN_INFO "PCI: %s: Can't enable MSI. " - "Device already has MSI-X irq assigned\n", + "Device already has MSI-X enabled\n", pci_name(dev)); - dev->irq = temp; return -EINVAL; } status = msi_capability_init(dev); @@ -709,6 +679,9 @@ void pci_disable_msi(struct pci_dev* dev) if (!dev) return; + if (!dev->msi_enabled) + return; + pos = pci_find_capability(dev, PCI_CAP_ID_MSI); if (!pos) return; @@ -717,28 +690,30 @@ void pci_disable_msi(struct pci_dev* dev) if (!(control & PCI_MSI_FLAGS_ENABLE)) return; + disable_msi_mode(dev, pos, PCI_CAP_ID_MSI); spin_lock_irqsave(&msi_lock, flags); - entry = msi_desc[dev->irq]; + entry = msi_desc[dev->first_msi_irq]; if (!entry || !entry->dev || entry->msi_attrib.type != PCI_CAP_ID_MSI) { spin_unlock_irqrestore(&msi_lock, flags); return; } - if (irq_has_action(dev->irq)) { + if (irq_has_action(dev->first_msi_irq)) { spin_unlock_irqrestore(&msi_lock, flags); printk(KERN_WARNING "PCI: %s: pci_disable_msi() called without " "free_irq() on MSI irq %d\n", - pci_name(dev), dev->irq); - BUG_ON(irq_has_action(dev->irq)); + pci_name(dev), dev->first_msi_irq); + BUG_ON(irq_has_action(dev->first_msi_irq)); } else { default_irq = entry->msi_attrib.default_irq; spin_unlock_irqrestore(&msi_lock, flags); - msi_free_irq(dev, dev->irq); + msi_free_irq(dev, dev->first_msi_irq); /* Restore dev->irq to its default pin-assertion irq */ dev->irq = default_irq; } + dev->first_msi_irq = 0; } static int msi_free_irq(struct pci_dev* dev, int irq) @@ -797,7 +772,7 @@ static int msi_free_irq(struct pci_dev* dev, int irq) int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec) { int status, pos, nr_entries; - int i, j, temp; + int i, j; u16 control; if (!entries || pci_msi_supported(dev) < 0) @@ -825,16 +800,14 @@ int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec) return -EINVAL; /* duplicate entry */ } } - temp = dev->irq; - WARN_ON(!msi_lookup_irq(dev, PCI_CAP_ID_MSIX)); + WARN_ON(!!dev->msix_enabled); /* Check whether driver already requested for MSI irq */ if (pci_find_capability(dev, PCI_CAP_ID_MSI) > 0 && - !msi_lookup_irq(dev, PCI_CAP_ID_MSI)) { + dev->msi_enabled) { printk(KERN_INFO "PCI: %s: Can't enable MSI-X. " "Device already has an MSI irq assigned\n", pci_name(dev)); - dev->irq = temp; return -EINVAL; } status = msix_capability_init(dev, entries, nvec); @@ -843,7 +816,9 @@ int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec) void pci_disable_msix(struct pci_dev* dev) { - int pos, temp; + int irq, head, tail = 0, warning = 0; + unsigned long flags; + int pos; u16 control; if (!pci_msi_enable) @@ -851,6 +826,9 @@ void pci_disable_msix(struct pci_dev* dev) if (!dev) return; + if (!dev->msix_enabled) + return; + pos = pci_find_capability(dev, PCI_CAP_ID_MSIX); if (!pos) return; @@ -861,31 +839,25 @@ void pci_disable_msix(struct pci_dev* dev) disable_msi_mode(dev, pos, PCI_CAP_ID_MSIX); - temp = dev->irq; - if (!msi_lookup_irq(dev, PCI_CAP_ID_MSIX)) { - int irq, head, tail = 0, warning = 0; - unsigned long flags; - - irq = head = dev->irq; - dev->irq = temp; /* Restore pin IRQ */ - while (head != tail) { - spin_lock_irqsave(&msi_lock, flags); - tail = msi_desc[irq]->link.tail; - spin_unlock_irqrestore(&msi_lock, flags); - if (irq_has_action(irq)) - warning = 1; - else if (irq != head) /* Release MSI-X irq */ - msi_free_irq(dev, irq); - irq = tail; - } - msi_free_irq(dev, irq); - if (warning) { - printk(KERN_WARNING "PCI: %s: pci_disable_msix() called without " - "free_irq() on all MSI-X irqs\n", - pci_name(dev)); - BUG_ON(warning > 0); - } + irq = head = dev->first_msi_irq; + while (head != tail) { + spin_lock_irqsave(&msi_lock, flags); + tail = msi_desc[irq]->link.tail; + spin_unlock_irqrestore(&msi_lock, flags); + if (irq_has_action(irq)) + warning = 1; + else if (irq != head) /* Release MSI-X irq */ + msi_free_irq(dev, irq); + irq = tail; + } + msi_free_irq(dev, irq); + if (warning) { + printk(KERN_WARNING "PCI: %s: pci_disable_msix() called without " + "free_irq() on all MSI-X irqs\n", + pci_name(dev)); + BUG_ON(warning > 0); } + dev->first_msi_irq = 0; } /** @@ -899,30 +871,28 @@ void pci_disable_msix(struct pci_dev* dev) **/ void msi_remove_pci_irq_vectors(struct pci_dev* dev) { - int pos, temp; + int pos; unsigned long flags; if (!pci_msi_enable || !dev) return; - temp = dev->irq; /* Save IOAPIC IRQ */ pos = pci_find_capability(dev, PCI_CAP_ID_MSI); - if (pos > 0 && !msi_lookup_irq(dev, PCI_CAP_ID_MSI)) { - if (irq_has_action(dev->irq)) { + if (pos > 0 && dev->msi_enabled) { + if (irq_has_action(dev->first_msi_irq)) { printk(KERN_WARNING "PCI: %s: msi_remove_pci_irq_vectors() " "called without free_irq() on MSI irq %d\n", - pci_name(dev), dev->irq); - BUG_ON(irq_has_action(dev->irq)); + pci_name(dev), dev->first_msi_irq); + BUG_ON(irq_has_action(dev->first_msi_irq)); } else /* Release MSI irq assigned to this device */ - msi_free_irq(dev, dev->irq); - dev->irq = temp; /* Restore IOAPIC IRQ */ + msi_free_irq(dev, dev->first_msi_irq); } pos = pci_find_capability(dev, PCI_CAP_ID_MSIX); - if (pos > 0 && !msi_lookup_irq(dev, PCI_CAP_ID_MSIX)) { + if (pos > 0 && dev->msix_enabled) { int irq, head, tail = 0, warning = 0; void __iomem *base = NULL; - irq = head = dev->irq; + irq = head = dev->first_msi_irq; while (head != tail) { spin_lock_irqsave(&msi_lock, flags); tail = msi_desc[irq]->link.tail; @@ -942,7 +912,6 @@ void msi_remove_pci_irq_vectors(struct pci_dev* dev) pci_name(dev)); BUG_ON(warning > 0); } - dev->irq = temp; /* Restore IOAPIC IRQ */ } } -- cgit v1.2.3 From d40f540ce6d992d4123827dbd62f68c4a39c53d0 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sun, 28 Jan 2007 12:44:21 -0700 Subject: msi: Remove msi_lock. With the removal of msi_lookup_irq all of the functions using msi_lock operated on a single device and none of them could reasonably be called on that device at the same time. Since what little synchronization that needs to happen needs to happen outside of the msi functions, msi_lock could never be contended and as such is useless and just complicates the code. Signed-off-by: Eric W. Biederman Acked-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 20 -------------------- 1 file changed, 20 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index b945470bef1..0df626cf47d 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -24,7 +24,6 @@ #include "pci.h" #include "msi.h" -static DEFINE_SPINLOCK(msi_lock); static struct msi_desc* msi_desc[NR_IRQS] = { [0 ... NR_IRQS-1] = NULL }; static struct kmem_cache* msi_cachep; @@ -196,11 +195,7 @@ static struct msi_desc* alloc_msi_entry(void) static void attach_msi_entry(struct msi_desc *entry, int irq) { - unsigned long flags; - - spin_lock_irqsave(&msi_lock, flags); msi_desc[irq] = entry; - spin_unlock_irqrestore(&msi_lock, flags); } static int create_msi_irq(void) @@ -672,7 +667,6 @@ void pci_disable_msi(struct pci_dev* dev) struct msi_desc *entry; int pos, default_irq; u16 control; - unsigned long flags; if (!pci_msi_enable) return; @@ -693,21 +687,17 @@ void pci_disable_msi(struct pci_dev* dev) disable_msi_mode(dev, pos, PCI_CAP_ID_MSI); - spin_lock_irqsave(&msi_lock, flags); entry = msi_desc[dev->first_msi_irq]; if (!entry || !entry->dev || entry->msi_attrib.type != PCI_CAP_ID_MSI) { - spin_unlock_irqrestore(&msi_lock, flags); return; } if (irq_has_action(dev->first_msi_irq)) { - spin_unlock_irqrestore(&msi_lock, flags); printk(KERN_WARNING "PCI: %s: pci_disable_msi() called without " "free_irq() on MSI irq %d\n", pci_name(dev), dev->first_msi_irq); BUG_ON(irq_has_action(dev->first_msi_irq)); } else { default_irq = entry->msi_attrib.default_irq; - spin_unlock_irqrestore(&msi_lock, flags); msi_free_irq(dev, dev->first_msi_irq); /* Restore dev->irq to its default pin-assertion irq */ @@ -721,14 +711,11 @@ static int msi_free_irq(struct pci_dev* dev, int irq) struct msi_desc *entry; int head, entry_nr, type; void __iomem *base; - unsigned long flags; arch_teardown_msi_irq(irq); - spin_lock_irqsave(&msi_lock, flags); entry = msi_desc[irq]; if (!entry || entry->dev != dev) { - spin_unlock_irqrestore(&msi_lock, flags); return -EINVAL; } type = entry->msi_attrib.type; @@ -739,7 +726,6 @@ static int msi_free_irq(struct pci_dev* dev, int irq) msi_desc[entry->link.tail]->link.head = entry->link.head; entry->dev = NULL; msi_desc[irq] = NULL; - spin_unlock_irqrestore(&msi_lock, flags); destroy_msi_irq(irq); @@ -817,7 +803,6 @@ int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec) void pci_disable_msix(struct pci_dev* dev) { int irq, head, tail = 0, warning = 0; - unsigned long flags; int pos; u16 control; @@ -841,9 +826,7 @@ void pci_disable_msix(struct pci_dev* dev) irq = head = dev->first_msi_irq; while (head != tail) { - spin_lock_irqsave(&msi_lock, flags); tail = msi_desc[irq]->link.tail; - spin_unlock_irqrestore(&msi_lock, flags); if (irq_has_action(irq)) warning = 1; else if (irq != head) /* Release MSI-X irq */ @@ -872,7 +855,6 @@ void pci_disable_msix(struct pci_dev* dev) void msi_remove_pci_irq_vectors(struct pci_dev* dev) { int pos; - unsigned long flags; if (!pci_msi_enable || !dev) return; @@ -894,10 +876,8 @@ void msi_remove_pci_irq_vectors(struct pci_dev* dev) irq = head = dev->first_msi_irq; while (head != tail) { - spin_lock_irqsave(&msi_lock, flags); tail = msi_desc[irq]->link.tail; base = msi_desc[irq]->mask_base; - spin_unlock_irqrestore(&msi_lock, flags); if (irq_has_action(irq)) warning = 1; else if (irq != head) /* Release MSI-X irq */ -- cgit v1.2.3 From 866a8c87c4e51046602387953bbef76992107bcb Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sun, 28 Jan 2007 12:45:54 -0700 Subject: msi: Fix msi_remove_pci_irq_vectors. Since msi_remove_pci_irq_vectors is designed to be called during hotplug remove it is actively wrong to query the hardware and expect meaningful results back. To that end remove the pci_find_capability calls. Testing dev->msi_enabled and dev->msix_enabled gives us all of the information we need. Signed-off-by: Eric W. Biederman Acked-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 0df626cf47d..529113dc3e2 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -854,13 +854,10 @@ void pci_disable_msix(struct pci_dev* dev) **/ void msi_remove_pci_irq_vectors(struct pci_dev* dev) { - int pos; - if (!pci_msi_enable || !dev) return; - pos = pci_find_capability(dev, PCI_CAP_ID_MSI); - if (pos > 0 && dev->msi_enabled) { + if (dev->msi_enabled) { if (irq_has_action(dev->first_msi_irq)) { printk(KERN_WARNING "PCI: %s: msi_remove_pci_irq_vectors() " "called without free_irq() on MSI irq %d\n", @@ -869,8 +866,7 @@ void msi_remove_pci_irq_vectors(struct pci_dev* dev) } else /* Release MSI irq assigned to this device */ msi_free_irq(dev, dev->first_msi_irq); } - pos = pci_find_capability(dev, PCI_CAP_ID_MSIX); - if (pos > 0 && dev->msix_enabled) { + if (dev->msix_enabled) { int irq, head, tail = 0, warning = 0; void __iomem *base = NULL; -- cgit v1.2.3 From 1c659d61cfbd8dc3926688c1bbf12d80f4cfb5c2 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sun, 28 Jan 2007 12:47:52 -0700 Subject: msi: Remove attach_msi_entry. The attach_msi_entry has been reduced to a single simple assignment, so for simplicity remove the abstraction and directory perform the assignment. Signed-off-by: Eric W. Biederman Acked-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 529113dc3e2..55fe83dfd77 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -193,11 +193,6 @@ static struct msi_desc* alloc_msi_entry(void) return entry; } -static void attach_msi_entry(struct msi_desc *entry, int irq) -{ - msi_desc[irq] = entry; -} - static int create_msi_irq(void) { struct msi_desc *entry; @@ -491,7 +486,7 @@ static int msi_capability_init(struct pci_dev *dev) } dev->first_msi_irq = irq; - attach_msi_entry(entry, irq); + msi_desc[irq] = entry; /* Set MSI enabled bits */ enable_msi_mode(dev, pos, PCI_CAP_ID_MSI); @@ -570,7 +565,7 @@ static int msix_capability_init(struct pci_dev *dev, break; } - attach_msi_entry(entry, irq); + msi_desc[irq] = entry; } if (i != nvec) { int avail = i - 1; -- cgit v1.2.3 From 5b912c108c8b1fcecbfe13d6d9a183db97b682d3 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sun, 28 Jan 2007 12:52:03 -0700 Subject: msi: Kill the msi_desc array. We need to be able to get from an irq number to a struct msi_desc. The msi_desc array in msi.c had several short comings the big one was that it could not be used outside of msi.c. Using irq_data in struct irq_desc almost worked except on some architectures irq_data needs to be used for something else. So this patch adds a msi_desc pointer to irq_desc, adds the appropriate wrappers and changes all of the msi code to use them. The dynamic_irq_init/cleanup code was tweaked to ensure the new field is left in a well defined state. Signed-off-by: Eric W. Biederman Acked-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 44 +++++++++++++++++++++----------------------- 1 file changed, 21 insertions(+), 23 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 55fe83dfd77..52c253c5ad3 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -24,7 +24,6 @@ #include "pci.h" #include "msi.h" -static struct msi_desc* msi_desc[NR_IRQS] = { [0 ... NR_IRQS-1] = NULL }; static struct kmem_cache* msi_cachep; static int pci_msi_enable = 1; @@ -43,7 +42,7 @@ static void msi_set_mask_bit(unsigned int irq, int flag) { struct msi_desc *entry; - entry = msi_desc[irq]; + entry = get_irq_msi(irq); BUG_ON(!entry || !entry->dev); switch (entry->msi_attrib.type) { case PCI_CAP_ID_MSI: @@ -73,7 +72,7 @@ static void msi_set_mask_bit(unsigned int irq, int flag) void read_msi_msg(unsigned int irq, struct msi_msg *msg) { - struct msi_desc *entry = get_irq_data(irq); + struct msi_desc *entry = get_irq_msi(irq); switch(entry->msi_attrib.type) { case PCI_CAP_ID_MSI: { @@ -112,7 +111,7 @@ void read_msi_msg(unsigned int irq, struct msi_msg *msg) void write_msi_msg(unsigned int irq, struct msi_msg *msg) { - struct msi_desc *entry = get_irq_data(irq); + struct msi_desc *entry = get_irq_msi(irq); switch (entry->msi_attrib.type) { case PCI_CAP_ID_MSI: { @@ -208,7 +207,7 @@ static int create_msi_irq(void) return -EBUSY; } - set_irq_data(irq, entry); + set_irq_msi(irq, entry); return irq; } @@ -217,9 +216,9 @@ static void destroy_msi_irq(unsigned int irq) { struct msi_desc *entry; - entry = get_irq_data(irq); + entry = get_irq_msi(irq); set_irq_chip(irq, NULL); - set_irq_data(irq, NULL); + set_irq_msi(irq, NULL); destroy_irq(irq); kmem_cache_free(msi_cachep, entry); } @@ -360,10 +359,10 @@ static int __pci_save_msix_state(struct pci_dev *dev) while (head != tail) { struct msi_desc *entry; - entry = msi_desc[irq]; + entry = get_irq_msi(irq); read_msi_msg(irq, &entry->msg_save); - tail = msi_desc[irq]->link.tail; + tail = entry->link.tail; irq = tail; } @@ -410,10 +409,10 @@ static void __pci_restore_msix_state(struct pci_dev *dev) /* route the table */ irq = head = dev->first_msi_irq; while (head != tail) { - entry = msi_desc[irq]; + entry = get_irq_msi(irq); write_msi_msg(irq, &entry->msg_save); - tail = msi_desc[irq]->link.tail; + tail = entry->link.tail; irq = tail; } @@ -451,7 +450,7 @@ static int msi_capability_init(struct pci_dev *dev) if (irq < 0) return irq; - entry = get_irq_data(irq); + entry = get_irq_msi(irq); entry->link.head = irq; entry->link.tail = irq; entry->msi_attrib.type = PCI_CAP_ID_MSI; @@ -486,7 +485,7 @@ static int msi_capability_init(struct pci_dev *dev) } dev->first_msi_irq = irq; - msi_desc[irq] = entry; + set_irq_msi(irq, entry); /* Set MSI enabled bits */ enable_msi_mode(dev, pos, PCI_CAP_ID_MSI); @@ -535,7 +534,7 @@ static int msix_capability_init(struct pci_dev *dev, if (irq < 0) break; - entry = get_irq_data(irq); + entry = get_irq_msi(irq); j = entries[i].entry; entries[i].vector = irq; entry->msi_attrib.type = PCI_CAP_ID_MSIX; @@ -565,7 +564,7 @@ static int msix_capability_init(struct pci_dev *dev, break; } - msi_desc[irq] = entry; + set_irq_msi(irq, entry); } if (i != nvec) { int avail = i - 1; @@ -682,7 +681,7 @@ void pci_disable_msi(struct pci_dev* dev) disable_msi_mode(dev, pos, PCI_CAP_ID_MSI); - entry = msi_desc[dev->first_msi_irq]; + entry = get_irq_msi(dev->first_msi_irq); if (!entry || !entry->dev || entry->msi_attrib.type != PCI_CAP_ID_MSI) { return; } @@ -709,7 +708,7 @@ static int msi_free_irq(struct pci_dev* dev, int irq) arch_teardown_msi_irq(irq); - entry = msi_desc[irq]; + entry = get_irq_msi(irq); if (!entry || entry->dev != dev) { return -EINVAL; } @@ -717,10 +716,9 @@ static int msi_free_irq(struct pci_dev* dev, int irq) entry_nr = entry->msi_attrib.entry_nr; head = entry->link.head; base = entry->mask_base; - msi_desc[entry->link.head]->link.tail = entry->link.tail; - msi_desc[entry->link.tail]->link.head = entry->link.head; + get_irq_msi(entry->link.head)->link.tail = entry->link.tail; + get_irq_msi(entry->link.tail)->link.head = entry->link.head; entry->dev = NULL; - msi_desc[irq] = NULL; destroy_msi_irq(irq); @@ -821,7 +819,7 @@ void pci_disable_msix(struct pci_dev* dev) irq = head = dev->first_msi_irq; while (head != tail) { - tail = msi_desc[irq]->link.tail; + tail = get_irq_msi(irq)->link.tail; if (irq_has_action(irq)) warning = 1; else if (irq != head) /* Release MSI-X irq */ @@ -867,8 +865,8 @@ void msi_remove_pci_irq_vectors(struct pci_dev* dev) irq = head = dev->first_msi_irq; while (head != tail) { - tail = msi_desc[irq]->link.tail; - base = msi_desc[irq]->mask_base; + tail = get_irq_msi(irq)->link.tail; + base = get_irq_msi(irq)->mask_base; if (irq_has_action(irq)) warning = 1; else if (irq != head) /* Release MSI-X irq */ -- cgit v1.2.3 From f7feaca77d6ad6bcfcc88ac54e3188970448d6fe Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sun, 28 Jan 2007 12:56:37 -0700 Subject: msi: Make MSI useable more architectures The arch hooks arch_setup_msi_irq and arch_teardown_msi_irq are now responsible for allocating and freeing the linux irq in addition to setting up the the linux irq to work with the interrupt. arch_setup_msi_irq now takes a pci_device and a msi_desc and returns an irq. With this change in place this code should be useable by all platforms except those that won't let the OS touch the hardware like ppc RTAS. Signed-off-by: Eric W. Biederman Acked-by: Ingo Molnar Signed-off-by: Greg Kroah-Hartman --- drivers/pci/msi.c | 80 +++++++++++++++---------------------------------------- 1 file changed, 22 insertions(+), 58 deletions(-) (limited to 'drivers/pci') diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 52c253c5ad3..68555c11f55 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -192,37 +192,6 @@ static struct msi_desc* alloc_msi_entry(void) return entry; } -static int create_msi_irq(void) -{ - struct msi_desc *entry; - int irq; - - entry = alloc_msi_entry(); - if (!entry) - return -ENOMEM; - - irq = create_irq(); - if (irq < 0) { - kmem_cache_free(msi_cachep, entry); - return -EBUSY; - } - - set_irq_msi(irq, entry); - - return irq; -} - -static void destroy_msi_irq(unsigned int irq) -{ - struct msi_desc *entry; - - entry = get_irq_msi(irq); - set_irq_chip(irq, NULL); - set_irq_msi(irq, NULL); - destroy_irq(irq); - kmem_cache_free(msi_cachep, entry); -} - static void enable_msi_mode(struct pci_dev *dev, int pos, int type) { u16 control; @@ -438,7 +407,6 @@ void pci_restore_msi_state(struct pci_dev *dev) **/ static int msi_capability_init(struct pci_dev *dev) { - int status; struct msi_desc *entry; int pos, irq; u16 control; @@ -446,13 +414,10 @@ static int msi_capability_init(struct pci_dev *dev) pos = pci_find_capability(dev, PCI_CAP_ID_MSI); pci_read_config_word(dev, msi_control_reg(pos), &control); /* MSI Entry Initialization */ - irq = create_msi_irq(); - if (irq < 0) - return irq; + entry = alloc_msi_entry(); + if (!entry) + return -ENOMEM; - entry = get_irq_msi(irq); - entry->link.head = irq; - entry->link.tail = irq; entry->msi_attrib.type = PCI_CAP_ID_MSI; entry->msi_attrib.is_64 = is_64bit_address(control); entry->msi_attrib.entry_nr = 0; @@ -478,14 +443,16 @@ static int msi_capability_init(struct pci_dev *dev) maskbits); } /* Configure MSI capability structure */ - status = arch_setup_msi_irq(irq, dev); - if (status < 0) { - destroy_msi_irq(irq); - return status; + irq = arch_setup_msi_irq(dev, entry); + if (irq < 0) { + kmem_cache_free(msi_cachep, entry); + return irq; } - + entry->link.head = irq; + entry->link.tail = irq; dev->first_msi_irq = irq; set_irq_msi(irq, entry); + /* Set MSI enabled bits */ enable_msi_mode(dev, pos, PCI_CAP_ID_MSI); @@ -507,7 +474,6 @@ static int msix_capability_init(struct pci_dev *dev, struct msix_entry *entries, int nvec) { struct msi_desc *head = NULL, *tail = NULL, *entry = NULL; - int status; int irq, pos, i, j, nr_entries, temp = 0; unsigned long phys_addr; u32 table_offset; @@ -530,13 +496,11 @@ static int msix_capability_init(struct pci_dev *dev, /* MSI-X Table Initialization */ for (i = 0; i < nvec; i++) { - irq = create_msi_irq(); - if (irq < 0) + entry = alloc_msi_entry(); + if (!entry) break; - entry = get_irq_msi(irq); j = entries[i].entry; - entries[i].vector = irq; entry->msi_attrib.type = PCI_CAP_ID_MSIX; entry->msi_attrib.is_64 = 1; entry->msi_attrib.entry_nr = j; @@ -545,6 +509,14 @@ static int msix_capability_init(struct pci_dev *dev, entry->msi_attrib.pos = pos; entry->dev = dev; entry->mask_base = base; + + /* Configure MSI-X capability structure */ + irq = arch_setup_msi_irq(dev, entry); + if (irq < 0) { + kmem_cache_free(msi_cachep, entry); + break; + } + entries[i].vector = irq; if (!head) { entry->link.head = irq; entry->link.tail = irq; @@ -557,12 +529,6 @@ static int msix_capability_init(struct pci_dev *dev, } temp = irq; tail = entry; - /* Configure MSI-X capability structure */ - status = arch_setup_msi_irq(irq, dev); - if (status < 0) { - destroy_msi_irq(irq); - break; - } set_irq_msi(irq, entry); } @@ -706,8 +672,6 @@ static int msi_free_irq(struct pci_dev* dev, int irq) int head, entry_nr, type; void __iomem *base; - arch_teardown_msi_irq(irq); - entry = get_irq_msi(irq); if (!entry || entry->dev != dev) { return -EINVAL; @@ -718,9 +682,9 @@ static int msi_free_irq(struct pci_dev* dev, int irq) base = entry->mask_base; get_irq_msi(entry->link.head)->link.tail = entry->link.tail; get_irq_msi(entry->link.tail)->link.head = entry->link.head; - entry->dev = NULL; - destroy_msi_irq(irq); + arch_teardown_msi_irq(irq); + kmem_cache_free(msi_cachep, entry); if (type == PCI_CAP_ID_MSIX) { writel(1, base + entry_nr * PCI_MSIX_ENTRY_SIZE + -- cgit v1.2.3 From c9f89475a5b184e9a6077b995ce340e6804c1b1a Mon Sep 17 00:00:00 2001 From: Conke Hu Date: Tue, 9 Jan 2007 05:32:51 -0500 Subject: Add pci class code for SATA & AHCI, and replace some magic numbers. Signed-off-by: Conke Hu Signed-off-by: Jeff Garzik --- drivers/pci/quirks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 11217bda4b9..1e6eda25c0d 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -871,7 +871,7 @@ static void __devinit quirk_sb600_sata(struct pci_dev *pdev) pci_write_config_byte(pdev, 0xa, 6); pci_write_config_byte(pdev, 0x40, tmp); - pdev->class = 0x010601; + pdev->class = PCI_CLASS_STORAGE_SATA_AHCI; } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_sb600_sata); -- cgit v1.2.3 From 9ac7849e35f705830f7b016ff272b0ff1f7ff759 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 20 Jan 2007 16:00:26 +0900 Subject: devres: device resource management Implement device resource management, in short, devres. A device driver can allocate arbirary size of devres data which is associated with a release function. On driver detach, release function is invoked on the devres data, then, devres data is freed. devreses are typed by associated release functions. Some devreses are better represented by single instance of the type while others need multiple instances sharing the same release function. Both usages are supported. devreses can be grouped using devres group such that a device driver can easily release acquired resources halfway through initialization or selectively release resources (e.g. resources for port 1 out of 4 ports). This patch adds devres core including documentation and the following managed interfaces. * alloc/free : devm_kzalloc(), devm_kzfree() * IO region : devm_request_region(), devm_release_region() * IRQ : devm_request_irq(), devm_free_irq() * DMA : dmam_alloc_coherent(), dmam_free_coherent(), dmam_declare_coherent_memory(), dmam_pool_create(), dmam_pool_destroy() * PCI : pcim_enable_device(), pcim_pin_device(), pci_is_managed() * iomap : devm_ioport_map(), devm_ioport_unmap(), devm_ioremap(), devm_ioremap_nocache(), devm_iounmap(), pcim_iomap_table(), pcim_iomap(), pcim_iounmap() Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/pci/pci.c | 127 +++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 126 insertions(+), 1 deletion(-) (limited to 'drivers/pci') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 84c757ba066..8b44cff2c17 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -744,6 +744,104 @@ int pci_enable_device(struct pci_dev *dev) return pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1); } +/* + * Managed PCI resources. This manages device on/off, intx/msi/msix + * on/off and BAR regions. pci_dev itself records msi/msix status, so + * there's no need to track it separately. pci_devres is initialized + * when a device is enabled using managed PCI device enable interface. + */ +struct pci_devres { + unsigned int disable:1; + unsigned int orig_intx:1; + unsigned int restore_intx:1; + u32 region_mask; +}; + +static void pcim_release(struct device *gendev, void *res) +{ + struct pci_dev *dev = container_of(gendev, struct pci_dev, dev); + struct pci_devres *this = res; + int i; + + if (dev->msi_enabled) + pci_disable_msi(dev); + if (dev->msix_enabled) + pci_disable_msix(dev); + + for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) + if (this->region_mask & (1 << i)) + pci_release_region(dev, i); + + if (this->restore_intx) + pci_intx(dev, this->orig_intx); + + if (this->disable) + pci_disable_device(dev); +} + +static struct pci_devres * get_pci_dr(struct pci_dev *pdev) +{ + struct pci_devres *dr, *new_dr; + + dr = devres_find(&pdev->dev, pcim_release, NULL, NULL); + if (dr) + return dr; + + new_dr = devres_alloc(pcim_release, sizeof(*new_dr), GFP_KERNEL); + if (!new_dr) + return NULL; + return devres_get(&pdev->dev, new_dr, NULL, NULL); +} + +static struct pci_devres * find_pci_dr(struct pci_dev *pdev) +{ + if (pci_is_managed(pdev)) + return devres_find(&pdev->dev, pcim_release, NULL, NULL); + return NULL; +} + +/** + * pcim_enable_device - Managed pci_enable_device() + * @pdev: PCI device to be initialized + * + * Managed pci_enable_device(). + */ +int pcim_enable_device(struct pci_dev *pdev) +{ + struct pci_devres *dr; + int rc; + + dr = get_pci_dr(pdev); + if (unlikely(!dr)) + return -ENOMEM; + WARN_ON(!!dr->disable); + + rc = pci_enable_device(pdev); + if (!rc) { + pdev->is_managed = 1; + dr->disable = 1; + } + return rc; +} + +/** + * pcim_pin_device - Pin managed PCI device + * @pdev: PCI device to pin + * + * Pin managed PCI device @pdev. Pinned device won't be disabled on + * driver detach. @pdev must have been enabled with + * pcim_enable_device(). + */ +void pcim_pin_device(struct pci_dev *pdev) +{ + struct pci_devres *dr; + + dr = find_pci_dr(pdev); + WARN_ON(!dr || !dr->disable); + if (dr) + dr->disable = 0; +} + /** * pcibios_disable_device - disable arch specific PCI resources for device dev * @dev: the PCI device to disable @@ -767,8 +865,13 @@ void __attribute__ ((weak)) pcibios_disable_device (struct pci_dev *dev) {} void pci_disable_device(struct pci_dev *dev) { + struct pci_devres *dr; u16 pci_command; + dr = find_pci_dr(dev); + if (dr) + dr->disable = 0; + if (atomic_sub_return(1, &dev->enable_cnt) != 0) return; @@ -867,6 +970,8 @@ pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge) */ void pci_release_region(struct pci_dev *pdev, int bar) { + struct pci_devres *dr; + if (pci_resource_len(pdev, bar) == 0) return; if (pci_resource_flags(pdev, bar) & IORESOURCE_IO) @@ -875,6 +980,10 @@ void pci_release_region(struct pci_dev *pdev, int bar) else if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) release_mem_region(pci_resource_start(pdev, bar), pci_resource_len(pdev, bar)); + + dr = find_pci_dr(pdev); + if (dr) + dr->region_mask &= ~(1 << bar); } /** @@ -893,6 +1002,8 @@ void pci_release_region(struct pci_dev *pdev, int bar) */ int pci_request_region(struct pci_dev *pdev, int bar, const char *res_name) { + struct pci_devres *dr; + if (pci_resource_len(pdev, bar) == 0) return 0; @@ -906,7 +1017,11 @@ int pci_request_region(struct pci_dev *pdev, int bar, const char *res_name) pci_resource_len(pdev, bar), res_name)) goto err_out; } - + + dr = find_pci_dr(pdev); + if (dr) + dr->region_mask |= 1 << bar; + return 0; err_out: @@ -1144,7 +1259,15 @@ pci_intx(struct pci_dev *pdev, int enable) } if (new != pci_command) { + struct pci_devres *dr; + pci_write_config_word(pdev, PCI_COMMAND, new); + + dr = find_pci_dr(pdev); + if (dr && !dr->restore_intx) { + dr->restore_intx = 1; + dr->orig_intx = !enable; + } } } @@ -1226,6 +1349,8 @@ device_initcall(pci_init); EXPORT_SYMBOL_GPL(pci_restore_bars); EXPORT_SYMBOL(pci_enable_device_bars); EXPORT_SYMBOL(pci_enable_device); +EXPORT_SYMBOL(pcim_enable_device); +EXPORT_SYMBOL(pcim_pin_device); EXPORT_SYMBOL(pci_disable_device); EXPORT_SYMBOL(pci_find_capability); EXPORT_SYMBOL(pci_bus_find_capability); -- cgit v1.2.3