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-rw-r--r--drivers/ata/ahci.c72
-rw-r--r--drivers/ata/libata-acpi.c96
-rw-r--r--drivers/ata/pata_ali.c2
-rw-r--r--drivers/block/virtio_blk.c1
-rw-r--r--drivers/char/drm/ati_pcigart.c91
-rw-r--r--drivers/char/drm/drmP.h3
-rw-r--r--drivers/char/drm/drm_fops.c7
-rw-r--r--drivers/char/drm/drm_lock.c35
-rw-r--r--drivers/char/drm/drm_pciids.h7
-rw-r--r--drivers/char/drm/r128_cce.c1
-rw-r--r--drivers/char/drm/radeon_cp.c1
-rw-r--r--drivers/char/drm/via_dma.c59
-rw-r--r--drivers/char/drm/via_dmablit.c2
-rw-r--r--drivers/net/virtio_net.c22
-rw-r--r--drivers/pci/hotplug/pciehp_core.c2
-rw-r--r--drivers/virtio/virtio_balloon.c4
-rw-r--r--drivers/virtio/virtio_pci.c15
-rw-r--r--drivers/virtio/virtio_ring.c1
18 files changed, 260 insertions, 161 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 6978469eb16..17ee6ed985d 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -49,6 +49,10 @@
#define DRV_NAME "ahci"
#define DRV_VERSION "3.0"
+static int ahci_skip_host_reset;
+module_param_named(skip_host_reset, ahci_skip_host_reset, int, 0444);
+MODULE_PARM_DESC(skip_host_reset, "skip global host reset (0=don't skip, 1=skip)");
+
static int ahci_enable_alpm(struct ata_port *ap,
enum link_pm policy);
static void ahci_disable_alpm(struct ata_port *ap);
@@ -587,6 +591,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
/* Marvell */
{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv }, /* 6145 */
+ { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv }, /* 6121 */
/* Generic, PCI class code for AHCI */
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
@@ -661,6 +666,7 @@ static void ahci_save_initial_config(struct pci_dev *pdev,
void __iomem *mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR];
u32 cap, port_map;
int i;
+ int mv;
/* make sure AHCI mode is enabled before accessing CAP */
ahci_enable_ahci(mmio);
@@ -696,12 +702,16 @@ static void ahci_save_initial_config(struct pci_dev *pdev,
* presence register, as bit 4 (counting from 0)
*/
if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
+ if (pdev->device == 0x6121)
+ mv = 0x3;
+ else
+ mv = 0xf;
dev_printk(KERN_ERR, &pdev->dev,
"MV_AHCI HACK: port_map %x -> %x\n",
- hpriv->port_map,
- hpriv->port_map & 0xf);
+ port_map,
+ port_map & mv);
- port_map &= 0xf;
+ port_map &= mv;
}
/* cross check port_map and cap.n_ports */
@@ -1088,29 +1098,35 @@ static int ahci_reset_controller(struct ata_host *host)
ahci_enable_ahci(mmio);
/* global controller reset */
- tmp = readl(mmio + HOST_CTL);
- if ((tmp & HOST_RESET) == 0) {
- writel(tmp | HOST_RESET, mmio + HOST_CTL);
- readl(mmio + HOST_CTL); /* flush */
- }
+ if (!ahci_skip_host_reset) {
+ tmp = readl(mmio + HOST_CTL);
+ if ((tmp & HOST_RESET) == 0) {
+ writel(tmp | HOST_RESET, mmio + HOST_CTL);
+ readl(mmio + HOST_CTL); /* flush */
+ }
- /* reset must complete within 1 second, or
- * the hardware should be considered fried.
- */
- ssleep(1);
+ /* reset must complete within 1 second, or
+ * the hardware should be considered fried.
+ */
+ ssleep(1);
- tmp = readl(mmio + HOST_CTL);
- if (tmp & HOST_RESET) {
- dev_printk(KERN_ERR, host->dev,
- "controller reset failed (0x%x)\n", tmp);
- return -EIO;
- }
+ tmp = readl(mmio + HOST_CTL);
+ if (tmp & HOST_RESET) {
+ dev_printk(KERN_ERR, host->dev,
+ "controller reset failed (0x%x)\n", tmp);
+ return -EIO;
+ }
- /* turn on AHCI mode */
- ahci_enable_ahci(mmio);
+ /* turn on AHCI mode */
+ ahci_enable_ahci(mmio);
- /* some registers might be cleared on reset. restore initial values */
- ahci_restore_initial_config(host);
+ /* Some registers might be cleared on reset. Restore
+ * initial values.
+ */
+ ahci_restore_initial_config(host);
+ } else
+ dev_printk(KERN_INFO, host->dev,
+ "skipping global host reset\n");
if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
u16 tmp16;
@@ -1162,9 +1178,14 @@ static void ahci_init_controller(struct ata_host *host)
int i;
void __iomem *port_mmio;
u32 tmp;
+ int mv;
if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
- port_mmio = __ahci_port_base(host, 4);
+ if (pdev->device == 0x6121)
+ mv = 2;
+ else
+ mv = 4;
+ port_mmio = __ahci_port_base(host, mv);
writel(0, port_mmio + PORT_IRQ_MASK);
@@ -2241,7 +2262,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (rc)
return rc;
- rc = pcim_iomap_regions(pdev, 1 << AHCI_PCI_BAR, DRV_NAME);
+ /* AHCI controllers often implement SFF compatible interface.
+ * Grab all PCI BARs just in case.
+ */
+ rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME);
if (rc == -EBUSY)
pcim_pin_device(pdev);
if (rc)
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index 0770cb7391a..bf98a566ada 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -118,45 +118,77 @@ static void ata_acpi_associate_ide_port(struct ata_port *ap)
ap->pflags |= ATA_PFLAG_INIT_GTM_VALID;
}
-static void ata_acpi_handle_hotplug(struct ata_port *ap, struct kobject *kobj,
+static void ata_acpi_handle_hotplug(struct ata_port *ap, struct ata_device *dev,
u32 event)
{
char event_string[12];
char *envp[] = { event_string, NULL };
- struct ata_eh_info *ehi = &ap->link.eh_info;
-
- if (event == 0 || event == 1) {
- unsigned long flags;
- spin_lock_irqsave(ap->lock, flags);
- ata_ehi_clear_desc(ehi);
- ata_ehi_push_desc(ehi, "ACPI event");
- ata_ehi_hotplugged(ehi);
- ata_port_freeze(ap);
- spin_unlock_irqrestore(ap->lock, flags);
+ struct ata_eh_info *ehi;
+ struct kobject *kobj = NULL;
+ int wait = 0;
+ unsigned long flags;
+
+ if (!ap)
+ ap = dev->link->ap;
+ ehi = &ap->link.eh_info;
+
+ spin_lock_irqsave(ap->lock, flags);
+
+ switch (event) {
+ case ACPI_NOTIFY_BUS_CHECK:
+ case ACPI_NOTIFY_DEVICE_CHECK:
+ ata_ehi_push_desc(ehi, "ACPI event");
+ ata_ehi_hotplugged(ehi);
+ ata_port_freeze(ap);
+ break;
+
+ case ACPI_NOTIFY_EJECT_REQUEST:
+ ata_ehi_push_desc(ehi, "ACPI event");
+ if (dev)
+ dev->flags |= ATA_DFLAG_DETACH;
+ else {
+ struct ata_link *tlink;
+ struct ata_device *tdev;
+
+ ata_port_for_each_link(tlink, ap)
+ ata_link_for_each_dev(tdev, tlink)
+ tdev->flags |= ATA_DFLAG_DETACH;
+ }
+
+ ata_port_schedule_eh(ap);
+ wait = 1;
+ break;
}
+ if (dev) {
+ if (dev->sdev)
+ kobj = &dev->sdev->sdev_gendev.kobj;
+ } else
+ kobj = &ap->dev->kobj;
+
if (kobj) {
sprintf(event_string, "BAY_EVENT=%d", event);
kobject_uevent_env(kobj, KOBJ_CHANGE, envp);
}
+
+ spin_unlock_irqrestore(ap->lock, flags);
+
+ if (wait)
+ ata_port_wait_eh(ap);
}
static void ata_acpi_dev_notify(acpi_handle handle, u32 event, void *data)
{
struct ata_device *dev = data;
- struct kobject *kobj = NULL;
- if (dev->sdev)
- kobj = &dev->sdev->sdev_gendev.kobj;
-
- ata_acpi_handle_hotplug(dev->link->ap, kobj, event);
+ ata_acpi_handle_hotplug(NULL, dev, event);
}
static void ata_acpi_ap_notify(acpi_handle handle, u32 event, void *data)
{
struct ata_port *ap = data;
- ata_acpi_handle_hotplug(ap, &ap->dev->kobj, event);
+ ata_acpi_handle_hotplug(ap, NULL, event);
}
/**
@@ -191,20 +223,30 @@ void ata_acpi_associate(struct ata_host *host)
else
ata_acpi_associate_ide_port(ap);
- if (ap->acpi_handle)
- acpi_install_notify_handler (ap->acpi_handle,
- ACPI_SYSTEM_NOTIFY,
- ata_acpi_ap_notify,
- ap);
+ if (ap->acpi_handle) {
+ acpi_install_notify_handler(ap->acpi_handle,
+ ACPI_SYSTEM_NOTIFY,
+ ata_acpi_ap_notify, ap);
+#if defined(CONFIG_ACPI_DOCK) || defined(CONFIG_ACPI_DOCK_MODULE)
+ /* we might be on a docking station */
+ register_hotplug_dock_device(ap->acpi_handle,
+ ata_acpi_ap_notify, ap);
+#endif
+ }
for (j = 0; j < ata_link_max_devices(&ap->link); j++) {
struct ata_device *dev = &ap->link.device[j];
- if (dev->acpi_handle)
- acpi_install_notify_handler (dev->acpi_handle,
- ACPI_SYSTEM_NOTIFY,
- ata_acpi_dev_notify,
- dev);
+ if (dev->acpi_handle) {
+ acpi_install_notify_handler(dev->acpi_handle,
+ ACPI_SYSTEM_NOTIFY,
+ ata_acpi_dev_notify, dev);
+#if defined(CONFIG_ACPI_DOCK) || defined(CONFIG_ACPI_DOCK_MODULE)
+ /* we might be on a docking station */
+ register_hotplug_dock_device(dev->acpi_handle,
+ ata_acpi_dev_notify, dev);
+#endif
+ }
}
}
}
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index 7e68edf3c0f..8786455c901 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -295,7 +295,7 @@ static void ali_lock_sectors(struct ata_device *adev)
static int ali_check_atapi_dma(struct ata_queued_cmd *qc)
{
/* If its not a media command, its not worth it */
- if (qc->nbytes < 2048)
+ if (atapi_cmd_type(qc->cdb[0]) == ATAPI_MISC)
return -EOPNOTSUPP;
return 0;
}
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 3b1a68d6edd..0cfbe8c594a 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -238,6 +238,7 @@ static int virtblk_probe(struct virtio_device *vdev)
vblk->disk->first_minor = index_to_minor(index);
vblk->disk->private_data = vblk;
vblk->disk->fops = &virtblk_fops;
+ vblk->disk->driverfs_dev = &vdev->dev;
index++;
/* If barriers are supported, tell block layer that queue is ordered */
diff --git a/drivers/char/drm/ati_pcigart.c b/drivers/char/drm/ati_pcigart.c
index d352dbb4ccf..e5a0e97cfdd 100644
--- a/drivers/char/drm/ati_pcigart.c
+++ b/drivers/char/drm/ati_pcigart.c
@@ -35,42 +35,23 @@
# define ATI_PCIGART_PAGE_SIZE 4096 /**< PCI GART page size */
-static void *drm_ati_alloc_pcigart_table(int order)
+static int drm_ati_alloc_pcigart_table(struct drm_device *dev,
+ struct drm_ati_pcigart_info *gart_info)
{
- unsigned long address;
- struct page *page;
- int i;
-
- DRM_DEBUG("%d order\n", order);
-
- address = __get_free_pages(GFP_KERNEL | __GFP_COMP,
- order);
- if (address == 0UL) {
- return NULL;
- }
-
- page = virt_to_page(address);
+ gart_info->table_handle = drm_pci_alloc(dev, gart_info->table_size,
+ PAGE_SIZE,
+ gart_info->table_mask);
+ if (gart_info->table_handle == NULL)
+ return -ENOMEM;
- for (i = 0; i < order; i++, page++)
- SetPageReserved(page);
-
- DRM_DEBUG("returning 0x%08lx\n", address);
- return (void *)address;
+ return 0;
}
-static void drm_ati_free_pcigart_table(void *address, int order)
+static void drm_ati_free_pcigart_table(struct drm_device *dev,
+ struct drm_ati_pcigart_info *gart_info)
{
- struct page *page;
- int i;
- int num_pages = 1 << order;
- DRM_DEBUG("\n");
-
- page = virt_to_page((unsigned long)address);
-
- for (i = 0; i < num_pages; i++, page++)
- ClearPageReserved(page);
-
- free_pages((unsigned long)address, order);
+ drm_pci_free(dev, gart_info->table_handle);
+ gart_info->table_handle = NULL;
}
int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info)
@@ -78,8 +59,7 @@ int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info
struct drm_sg_mem *entry = dev->sg;
unsigned long pages;
int i;
- int order;
- int num_pages, max_pages;
+ int max_pages;
/* we need to support large memory configurations */
if (!entry) {
@@ -87,15 +67,7 @@ int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info
return 0;
}
- order = drm_order((gart_info->table_size + (PAGE_SIZE-1)) / PAGE_SIZE);
- num_pages = 1 << order;
-
if (gart_info->bus_addr) {
- if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
- pci_unmap_single(dev->pdev, gart_info->bus_addr,
- num_pages * PAGE_SIZE,
- PCI_DMA_TODEVICE);
- }
max_pages = (gart_info->table_size / sizeof(u32));
pages = (entry->pages <= max_pages)
@@ -112,10 +84,9 @@ int drm_ati_pcigart_cleanup(struct drm_device *dev, struct drm_ati_pcigart_info
gart_info->bus_addr = 0;
}
- if (gart_info->gart_table_location == DRM_ATI_GART_MAIN
- && gart_info->addr) {
- drm_ati_free_pcigart_table(gart_info->addr, order);
- gart_info->addr = NULL;
+ if (gart_info->gart_table_location == DRM_ATI_GART_MAIN &&
+ gart_info->table_handle) {
+ drm_ati_free_pcigart_table(dev, gart_info);
}
return 1;
@@ -127,11 +98,10 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
struct drm_sg_mem *entry = dev->sg;
void *address = NULL;
unsigned long pages;
- u32 *pci_gart, page_base, bus_address = 0;
+ u32 *pci_gart, page_base;
+ dma_addr_t bus_address = 0;
int i, j, ret = 0;
- int order;
int max_pages;
- int num_pages;
if (!entry) {
DRM_ERROR("no scatter/gather memory!\n");
@@ -141,31 +111,14 @@ int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *ga
if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) {
DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n");
- order = drm_order((gart_info->table_size +
- (PAGE_SIZE-1)) / PAGE_SIZE);
- num_pages = 1 << order;
- address = drm_ati_alloc_pcigart_table(order);
- if (!address) {
+ ret = drm_ati_alloc_pcigart_table(dev, gart_info);
+ if (ret) {
DRM_ERROR("cannot allocate PCI GART page!\n");
goto done;
}
- if (!dev->pdev) {
- DRM_ERROR("PCI device unknown!\n");
- goto done;
- }
-
- bus_address = pci_map_single(dev->pdev, address,
- num_pages * PAGE_SIZE,
- PCI_DMA_TODEVICE);
- if (bus_address == 0) {
- DRM_ERROR("unable to map PCIGART pages!\n");
- order = drm_order((gart_info->table_size +
- (PAGE_SIZE-1)) / PAGE_SIZE);
- drm_ati_free_pcigart_table(address, order);
- address = NULL;
- goto done;
- }
+ address = gart_info->table_handle->vaddr;
+ bus_address = gart_info->table_handle->busaddr;
} else {
address = gart_info->addr;
bus_address = gart_info->bus_addr;
diff --git a/drivers/char/drm/drmP.h b/drivers/char/drm/drmP.h
index a6789f25009..8ea9dd1717a 100644
--- a/drivers/char/drm/drmP.h
+++ b/drivers/char/drm/drmP.h
@@ -54,6 +54,7 @@
#include <linux/pci.h>
#include <linux/jiffies.h>
#include <linux/smp_lock.h> /* For (un)lock_kernel */
+#include <linux/dma-mapping.h>
#include <linux/mm.h>
#include <linux/cdev.h>
#include <linux/mutex.h>
@@ -551,6 +552,8 @@ struct drm_ati_pcigart_info {
int gart_reg_if;
void *addr;
dma_addr_t bus_addr;
+ dma_addr_t table_mask;
+ struct drm_dma_handle *table_handle;
drm_local_map_t mapping;
int table_size;
};
diff --git a/drivers/char/drm/drm_fops.c b/drivers/char/drm/drm_fops.c
index 3992f73299c..f09d4b5002b 100644
--- a/drivers/char/drm/drm_fops.c
+++ b/drivers/char/drm/drm_fops.c
@@ -326,6 +326,7 @@ int drm_release(struct inode *inode, struct file *filp)
struct drm_file *file_priv = filp->private_data;
struct drm_device *dev = file_priv->head->dev;
int retcode = 0;
+ unsigned long irqflags;
lock_kernel();
@@ -357,9 +358,11 @@ int drm_release(struct inode *inode, struct file *filp)
*/
do{
- spin_lock(&dev->lock.spinlock);
+ spin_lock_irqsave(&dev->lock.spinlock,
+ irqflags);
locked = dev->lock.idle_has_lock;
- spin_unlock(&dev->lock.spinlock);
+ spin_unlock_irqrestore(&dev->lock.spinlock,
+ irqflags);
if (locked)
break;
schedule();
diff --git a/drivers/char/drm/drm_lock.c b/drivers/char/drm/drm_lock.c
index bea2a7d5b2b..12dcdd1832f 100644
--- a/drivers/char/drm/drm_lock.c
+++ b/drivers/char/drm/drm_lock.c
@@ -53,6 +53,7 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
DECLARE_WAITQUEUE(entry, current);
struct drm_lock *lock = data;
int ret = 0;
+ unsigned long irqflags;
++file_priv->lock_count;
@@ -71,9 +72,9 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
return -EINVAL;
add_wait_queue(&dev->lock.lock_queue, &entry);
- spin_lock(&dev->lock.spinlock);
+ spin_lock_irqsave(&dev->lock.spinlock, irqflags);
dev->lock.user_waiters++;
- spin_unlock(&dev->lock.spinlock);
+ spin_unlock_irqrestore(&dev->lock.spinlock, irqflags);
for (;;) {
__set_current_state(TASK_INTERRUPTIBLE);
if (!dev->lock.hw_lock) {
@@ -95,9 +96,9 @@ int drm_lock(struct drm_device *dev, void *data, struct drm_file *file_priv)
break;
}
}
- spin_lock(&dev->lock.spinlock);
+ spin_lock_irqsave(&dev->lock.spinlock, irqflags);
dev->lock.user_waiters--;
- spin_unlock(&dev->lock.spinlock);
+ spin_unlock_irqrestore(&dev->lock.spinlock, irqflags);
__set_current_state(TASK_RUNNING);
remove_wait_queue(&dev->lock.lock_queue, &entry);
@@ -198,8 +199,9 @@ int drm_lock_take(struct drm_lock_data *lock_data,
{
unsigned int old, new, prev;
volatile unsigned int *lock = &lock_data->hw_lock->lock;
+ unsigned long irqflags;
- spin_lock(&lock_data->spinlock);
+ spin_lock_irqsave(&lock_data->spinlock, irqflags);
do {
old = *lock;
if (old & _DRM_LOCK_HELD)
@@ -211,7 +213,7 @@ int drm_lock_take(struct drm_lock_data *lock_data,
}
prev = cmpxchg(lock, old, new);
} while (prev != old);
- spin_unlock(&lock_data->spinlock);
+ spin_unlock_irqrestore(&lock_data->spinlock, irqflags);
if (_DRM_LOCKING_CONTEXT(old) == context) {
if (old & _DRM_LOCK_HELD) {
@@ -272,15 +274,16 @@ int drm_lock_free(struct drm_lock_data *lock_data, unsigned int context)
{
unsigned int old, new, prev;
volatile unsigned int *lock = &lock_data->hw_lock->lock;
+ unsigned long irqflags;
- spin_lock(&lock_data->spinlock);
+ spin_lock_irqsave(&lock_data->spinlock, irqflags);
if (lock_data->kernel_waiters != 0) {
drm_lock_transfer(lock_data, 0);
lock_data->idle_has_lock = 1;
- spin_unlock(&lock_data->spinlock);
+ spin_unlock_irqrestore(&lock_data->spinlock, irqflags);
return 1;
}
- spin_unlock(&lock_data->spinlock);
+ spin_unlock_irqrestore(&lock_data->spinlock, irqflags);
do {
old = *lock;
@@ -344,19 +347,20 @@ static int drm_notifier(void *priv)
void drm_idlelock_take(struct drm_lock_data *lock_data)
{
int ret = 0;
+ unsigned long irqflags;
- spin_lock(&lock_data->spinlock);
+ spin_lock_irqsave(&lock_data->spinlock, irqflags);
lock_data->kernel_waiters++;
if (!lock_data->idle_has_lock) {
- spin_unlock(&lock_data->spinlock);
+ spin_unlock_irqrestore(&lock_data->spinlock, irqflags);
ret = drm_lock_take(lock_data, DRM_KERNEL_CONTEXT);
- spin_lock(&lock_data->spinlock);
+ spin_lock_irqsave(&lock_data->spinlock, irqflags);
if (ret == 1)
lock_data->idle_has_lock = 1;
}
- spin_unlock(&lock_data->spinlock);
+ spin_unlock_irqrestore(&lock_data->spinlock, irqflags);
}
EXPORT_SYMBOL(drm_idlelock_take);
@@ -364,8 +368,9 @@ void drm_idlelock_release(struct drm_lock_data *lock_data)
{
unsigned int old, prev;
volatile unsigned int *lock = &lock_data->hw_lock->lock;
+ unsigned long irqflags;
- spin_lock(&lock_data->spinlock);
+ spin_lock_irqsave(&lock_data->spinlock, irqflags);
if (--lock_data->kernel_waiters == 0) {
if (lock_data->idle_has_lock) {
do {
@@ -376,7 +381,7 @@ void drm_idlelock_release(struct drm_lock_data *lock_data)
lock_data->idle_has_lock = 0;
}
}
- spin_unlock(&lock_data->spinlock);
+ spin_unlock_irqrestore(&lock_data->spinlock, irqflags);
}
EXPORT_SYMBOL(drm_idlelock_release);
diff --git a/drivers/char/drm/drm_pciids.h b/drivers/char/drm/drm_pciids.h
index 715b361f0c2..a6a499f97e2 100644
--- a/drivers/char/drm/drm_pciids.h
+++ b/drivers/char/drm/drm_pciids.h
@@ -205,9 +205,9 @@
{0x1002, 0x71D6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV530|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x71DA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV530|RADEON_NEW_MEMMAP}, \
{0x1002, 0x71DE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV530|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
- {0x1002, 0x7200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV530|RADEON_NEW_MEMMAP}, \
- {0x1002, 0x7210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV530|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
- {0x1002, 0x7211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV530|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x7200, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV515|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x7210, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV515|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
+ {0x1002, 0x7211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV515|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x7240, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R580|RADEON_NEW_MEMMAP}, \
{0x1002, 0x7243, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R580|RADEON_NEW_MEMMAP}, \
{0x1002, 0x7244, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_R580|RADEON_NEW_MEMMAP}, \
@@ -238,6 +238,7 @@
{0x1002, 0x7834, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP|RADEON_NEW_MEMMAP}, \
{0x1002, 0x7835, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS300|RADEON_IS_IGP|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \
{0x1002, 0x791e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS690|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
+ {0x1002, 0x791f, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RS690|RADEON_IS_IGP|RADEON_NEW_MEMMAP|RADEON_IS_IGPGART}, \
{0, 0, 0}
#define r128_PCI_IDS \
diff --git a/drivers/char/drm/r128_cce.c b/drivers/char/drm/r128_cce.c
index 892e0a58984..f36adbd3aaf 100644
--- a/drivers/char/drm/r128_cce.c
+++ b/drivers/char/drm/r128_cce.c
@@ -558,6 +558,7 @@ static int r128_do_init_cce(struct drm_device * dev, drm_r128_init_t * init)
#if __OS_HAS_AGP
if (dev_priv->is_pci) {
#endif
+ dev_priv->gart_info.table_mask = DMA_BIT_MASK(32);
dev_priv->gart_info.gart_table_location = DRM_ATI_GART_MAIN;
dev_priv->gart_info.table_size = R128_PCIGART_TABLE_SIZE;
dev_priv->gart_info.addr = NULL;
diff --git a/drivers/char/drm/radeon_cp.c b/drivers/char/drm/radeon_cp.c
index 833abc7e55f..9072e4a1894 100644
--- a/drivers/char/drm/radeon_cp.c
+++ b/drivers/char/drm/radeon_cp.c
@@ -1807,6 +1807,7 @@ static int radeon_do_init_cp(struct drm_device * dev, drm_radeon_init_t * init)
} else
#endif
{
+ dev_priv->gart_info.table_mask = DMA_BIT_MASK(32);
/* if we have an offset set from userspace */
if (dev_priv->pcigart_offset_set) {
dev_priv->gart_info.bus_addr =
diff --git a/drivers/char/drm/via_dma.c b/drivers/char/drm/via_dma.c
index 94baec692b5..7a339dba6a6 100644
--- a/drivers/char/drm/via_dma.c
+++ b/drivers/char/drm/via_dma.c
@@ -126,6 +126,8 @@ via_cmdbuf_wait(drm_via_private_t * dev_priv, unsigned int size)
hw_addr, cur_addr, next_addr);
return -1;
}
+ if ((cur_addr < hw_addr) && (next_addr >= hw_addr))
+ msleep(1);
} while ((cur_addr < hw_addr) && (next_addr >= hw_addr));
return 0;
}
@@ -416,27 +418,50 @@ static int via_hook_segment(drm_via_private_t * dev_priv,
int paused, count;
volatile uint32_t *paused_at = dev_priv->last_pause_ptr;
uint32_t reader,ptr;
+ uint32_t diff;
paused = 0;
via_flush_write_combine();
(void) *(volatile uint32_t *)(via_get_dma(dev_priv) -1);
+
*paused_at = pause_addr_lo;
via_flush_write_combine();
(void) *paused_at;
+
reader = *(dev_priv->hw_addr_ptr);
ptr = ((volatile char *)paused_at - dev_priv->dma_ptr) +
dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr + 4;
+
dev_priv->last_pause_ptr = via_get_dma(dev_priv) - 1;
- if ((ptr - reader) <= dev_priv->dma_diff ) {
- count = 10000000;
- while (!(paused = (VIA_READ(0x41c) & 0x80000000)) && count--);
+ /*
+ * If there is a possibility that the command reader will
+ * miss the new pause address and pause on the old one,
+ * In that case we need to program the new start address
+ * using PCI.
+ */
+
+ diff = (uint32_t) (ptr - reader) - dev_priv->dma_diff;
+ count = 10000000;
+ while(diff == 0 && count--) {
+ paused = (VIA_READ(0x41c) & 0x80000000);
+ if (paused)
+ break;
+ reader = *(dev_priv->hw_addr_ptr);
+ diff = (uint32_t) (ptr - reader) - dev_priv->dma_diff;
}
+ paused = VIA_READ(0x41c) & 0x80000000;
+
if (paused && !no_pci_fire) {
reader = *(dev_priv->hw_addr_ptr);
- if ((ptr - reader) == dev_priv->dma_diff) {
-
+ diff = (uint32_t) (ptr - reader) - dev_priv->dma_diff;
+ diff &= (dev_priv->dma_high - 1);
+ if (diff != 0 && diff < (dev_priv->dma_high >> 1)) {
+ DRM_ERROR("Paused at incorrect address. "
+ "0x%08x, 0x%08x 0x%08x\n",
+ ptr, reader, dev_priv->dma_diff);
+ } else if (diff == 0) {
/*
* There is a concern that these writes may stall the PCI bus
* if the GPU is not idle. However, idling the GPU first
@@ -577,6 +602,7 @@ static void via_cmdbuf_jump(drm_via_private_t * dev_priv)
uint32_t pause_addr_lo, pause_addr_hi;
uint32_t jump_addr_lo, jump_addr_hi;
volatile uint32_t *last_pause_ptr;
+ uint32_t dma_low_save1, dma_low_save2;
agp_base = dev_priv->dma_offset + (uint32_t) dev_priv->agpAddr;
via_align_cmd(dev_priv, HC_HAGPBpID_JUMP, 0, &jump_addr_hi,
@@ -603,8 +629,29 @@ static void via_cmdbuf_jump(drm_via_private_t * dev_priv)
&pause_addr_lo, 0);
*last_pause_ptr = pause_addr_lo;
+ dma_low_save1 = dev_priv->dma_low;
- via_hook_segment( dev_priv, jump_addr_hi, jump_addr_lo, 0);
+ /*
+ * Now, set a trap that will pause the regulator if it tries to rerun the old
+ * command buffer. (Which may happen if via_hook_segment detecs a command regulator pause
+ * and reissues the jump command over PCI, while the regulator has already taken the jump
+ * and actually paused at the current buffer end).
+ * There appears to be no other way to detect this condition, since the hw_addr_pointer
+ * does not seem to get updated immediately when a jump occurs.
+ */
+
+ last_pause_ptr =
+ via_align_cmd(dev_priv, HC_HAGPBpID_PAUSE, 0, &pause_addr_hi,
+ &pause_addr_lo, 0) - 1;
+ via_align_cmd(dev_priv, HC_HAGPBpID_PAUSE, 0, &pause_addr_hi,
+ &pause_addr_lo, 0);
+ *last_pause_ptr = pause_addr_lo;
+
+ dma_low_save2 = dev_priv->dma_low;
+ dev_priv->dma_low = dma_low_save1;
+ via_hook_segment(dev_priv, jump_addr_hi, jump_addr_lo, 0);
+ dev_priv->dma_low = dma_low_save2;
+ via_hook_segment(dev_priv, pause_addr_hi, pause_addr_lo, 0);
}
diff --git a/drivers/char/drm/via_dmablit.c b/drivers/char/drm/via_dmablit.c
index 33c5197b73c..409e00afdd0 100644
--- a/drivers/char/drm/via_dmablit.c
+++ b/drivers/char/drm/via_dmablit.c
@@ -603,7 +603,7 @@ via_build_sg_info(struct drm_device *dev, drm_via_sg_info_t *vsg, drm_via_dmabli
* (Not a big limitation anyway.)
*/
- if ((xfer->mem_stride - xfer->line_length) >= PAGE_SIZE) {
+ if ((xfer->mem_stride - xfer->line_length) > 2*PAGE_SIZE) {
DRM_ERROR("Too large system memory stride. Stride: %d, "
"Length: %d\n", xfer->mem_stride, xfer->line_length);
return -EINVAL;
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 19fd4cb0ddf..b58472cf76f 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -203,8 +203,11 @@ again:
if (received < budget) {
netif_rx_complete(vi->dev, napi);
if (unlikely(!vi->rvq->vq_ops->enable_cb(vi->rvq))
- && netif_rx_reschedule(vi->dev, napi))
+ && napi_schedule_prep(napi)) {
+ vi->rvq->vq_ops->disable_cb(vi->rvq);
+ __netif_rx_schedule(vi->dev, napi);
goto again;
+ }
}
return received;
@@ -278,10 +281,11 @@ again:
pr_debug("%s: virtio not prepared to send\n", dev->name);
netif_stop_queue(dev);
- /* Activate callback for using skbs: if this fails it
+ /* Activate callback for using skbs: if this returns false it
* means some were used in the meantime. */
if (unlikely(!vi->svq->vq_ops->enable_cb(vi->svq))) {
- printk("Unlikely: restart svq failed\n");
+ printk("Unlikely: restart svq race\n");
+ vi->svq->vq_ops->disable_cb(vi->svq);
netif_start_queue(dev);
goto again;
}
@@ -294,6 +298,15 @@ again:
return 0;
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void virtnet_netpoll(struct net_device *dev)
+{
+ struct virtnet_info *vi = netdev_priv(dev);
+
+ napi_schedule(&vi->napi);
+}
+#endif
+
static int virtnet_open(struct net_device *dev)
{
struct virtnet_info *vi = netdev_priv(dev);
@@ -336,6 +349,9 @@ static int virtnet_probe(struct virtio_device *vdev)
dev->stop = virtnet_close;
dev->hard_start_xmit = start_xmit;
dev->features = NETIF_F_HIGHDMA;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = virtnet_netpoll;
+#endif
SET_NETDEV_DEV(dev, &vdev->dev);
/* Do we support "hardware" checksums? */
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 7f4836b8e71..5fa4ba0d993 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -467,7 +467,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
t_slot = pciehp_find_slot(ctrl, ctrl->slot_device_offset);
t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */
- if (value) {
+ if (value && pciehp_force) {
rc = pciehp_enable_slot(t_slot);
if (rc) /* -ENODEV: shouldn't happen, but deal with it */
value = 0;
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index c8a4332d113..0b3efc31ee6 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -152,7 +152,7 @@ static void virtballoon_changed(struct virtio_device *vdev)
wake_up(&vb->config_change);
}
-static inline int towards_target(struct virtio_balloon *vb)
+static inline s64 towards_target(struct virtio_balloon *vb)
{
u32 v;
__virtio_config_val(vb->vdev,
@@ -176,7 +176,7 @@ static int balloon(void *_vballoon)
set_freezable();
while (!kthread_should_stop()) {
- int diff;
+ s64 diff;
try_to_freeze();
wait_event_interruptible(vb->config_change,
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 26f787ddd5f..59a8f73dec7 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -177,6 +177,7 @@ static irqreturn_t vp_interrupt(int irq, void *opaque)
struct virtio_pci_device *vp_dev = opaque;
struct virtio_pci_vq_info *info;
irqreturn_t ret = IRQ_NONE;
+ unsigned long flags;
u8 isr;
/* reading the ISR has the effect of also clearing it so it's very
@@ -197,12 +198,12 @@ static irqreturn_t vp_interrupt(int irq, void *opaque)
drv->config_changed(&vp_dev->vdev);
}
- spin_lock(&vp_dev->lock);
+ spin_lock_irqsave(&vp_dev->lock, flags);
list_for_each_entry(info, &vp_dev->virtqueues, node) {
if (vring_interrupt(irq, info->vq) == IRQ_HANDLED)
ret = IRQ_HANDLED;
}
- spin_unlock(&vp_dev->lock);
+ spin_unlock_irqrestore(&vp_dev->lock, flags);
return ret;
}
@@ -214,6 +215,7 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index,
struct virtio_pci_device *vp_dev = to_vp_device(vdev);
struct virtio_pci_vq_info *info;
struct virtqueue *vq;
+ unsigned long flags;
u16 num;
int err;
@@ -255,9 +257,9 @@ static struct virtqueue *vp_find_vq(struct virtio_device *vdev, unsigned index,
vq->priv = info;
info->vq = vq;
- spin_lock(&vp_dev->lock);
+ spin_lock_irqsave(&vp_dev->lock, flags);
list_add(&info->node, &vp_dev->virtqueues);
- spin_unlock(&vp_dev->lock);
+ spin_unlock_irqrestore(&vp_dev->lock, flags);
return vq;
@@ -274,10 +276,11 @@ static void vp_del_vq(struct virtqueue *vq)
{
struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);
struct virtio_pci_vq_info *info = vq->priv;
+ unsigned long flags;
- spin_lock(&vp_dev->lock);
+ spin_lock_irqsave(&vp_dev->lock, flags);
list_del(&info->node);
- spin_unlock(&vp_dev->lock);
+ spin_unlock_irqrestore(&vp_dev->lock, flags);
vring_del_virtqueue(vq);
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 3a28c138213..aa714028641 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -232,7 +232,6 @@ static bool vring_enable_cb(struct virtqueue *_vq)
vq->vring.avail->flags &= ~VRING_AVAIL_F_NO_INTERRUPT;
mb();
if (unlikely(more_used(vq))) {
- vq->vring.avail->flags |= VRING_AVAIL_F_NO_INTERRUPT;
END_USE(vq);
return false;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 02:04:01 +0000