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-rw-r--r--drivers/pci/hotplug/rpaphp_core.c3
-rw-r--r--drivers/pci/msi.c227
-rw-r--r--drivers/pci/pci.c6
-rw-r--r--drivers/pci/pci.h11
-rw-r--r--drivers/pci/quirks.c4
5 files changed, 218 insertions, 33 deletions
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index 6e79f5675b0..63800454670 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -360,9 +360,6 @@ static int __init rpaphp_init(void)
while ((dn = of_find_node_by_type(dn, "pci")))
rpaphp_add_slot(dn);
- if (!num_slots)
- return -ENODEV;
-
return 0;
}
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index a77e79c8c82..2087a397ef1 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -504,6 +504,201 @@ void pci_scan_msi_device(struct pci_dev *dev)
nr_reserved_vectors++;
}
+#ifdef CONFIG_PM
+int pci_save_msi_state(struct pci_dev *dev)
+{
+ int pos, i = 0;
+ u16 control;
+ struct pci_cap_saved_state *save_state;
+ u32 *cap;
+
+ pos = pci_find_capability(dev, PCI_CAP_ID_MSI);
+ if (pos <= 0 || dev->no_msi)
+ return 0;
+
+ pci_read_config_word(dev, msi_control_reg(pos), &control);
+ if (!(control & PCI_MSI_FLAGS_ENABLE))
+ return 0;
+
+ save_state = kzalloc(sizeof(struct pci_cap_saved_state) + sizeof(u32) * 5,
+ GFP_KERNEL);
+ if (!save_state) {
+ printk(KERN_ERR "Out of memory in pci_save_msi_state\n");
+ return -ENOMEM;
+ }
+ cap = &save_state->data[0];
+
+ pci_read_config_dword(dev, pos, &cap[i++]);
+ control = cap[0] >> 16;
+ pci_read_config_dword(dev, pos + PCI_MSI_ADDRESS_LO, &cap[i++]);
+ if (control & PCI_MSI_FLAGS_64BIT) {
+ pci_read_config_dword(dev, pos + PCI_MSI_ADDRESS_HI, &cap[i++]);
+ pci_read_config_dword(dev, pos + PCI_MSI_DATA_64, &cap[i++]);
+ } else
+ pci_read_config_dword(dev, pos + PCI_MSI_DATA_32, &cap[i++]);
+ if (control & PCI_MSI_FLAGS_MASKBIT)
+ pci_read_config_dword(dev, pos + PCI_MSI_MASK_BIT, &cap[i++]);
+ disable_msi_mode(dev, pos, PCI_CAP_ID_MSI);
+ save_state->cap_nr = PCI_CAP_ID_MSI;
+ pci_add_saved_cap(dev, save_state);
+ return 0;
+}
+
+void pci_restore_msi_state(struct pci_dev *dev)
+{
+ int i = 0, pos;
+ u16 control;
+ struct pci_cap_saved_state *save_state;
+ u32 *cap;
+
+ save_state = pci_find_saved_cap(dev, PCI_CAP_ID_MSI);
+ pos = pci_find_capability(dev, PCI_CAP_ID_MSI);
+ if (!save_state || pos <= 0)
+ return;
+ cap = &save_state->data[0];
+
+ control = cap[i++] >> 16;
+ pci_write_config_dword(dev, pos + PCI_MSI_ADDRESS_LO, cap[i++]);
+ if (control & PCI_MSI_FLAGS_64BIT) {
+ pci_write_config_dword(dev, pos + PCI_MSI_ADDRESS_HI, cap[i++]);
+ pci_write_config_dword(dev, pos + PCI_MSI_DATA_64, cap[i++]);
+ } else
+ pci_write_config_dword(dev, pos + PCI_MSI_DATA_32, cap[i++]);
+ if (control & PCI_MSI_FLAGS_MASKBIT)
+ pci_write_config_dword(dev, pos + PCI_MSI_MASK_BIT, cap[i++]);
+ pci_write_config_word(dev, pos + PCI_MSI_FLAGS, control);
+ enable_msi_mode(dev, pos, PCI_CAP_ID_MSI);
+ pci_remove_saved_cap(save_state);
+ kfree(save_state);
+}
+
+int pci_save_msix_state(struct pci_dev *dev)
+{
+ int pos;
+ u16 control;
+ struct pci_cap_saved_state *save_state;
+
+ pos = pci_find_capability(dev, PCI_CAP_ID_MSIX);
+ if (pos <= 0 || dev->no_msi)
+ return 0;
+
+ pci_read_config_word(dev, msi_control_reg(pos), &control);
+ if (!(control & PCI_MSIX_FLAGS_ENABLE))
+ return 0;
+ save_state = kzalloc(sizeof(struct pci_cap_saved_state) + sizeof(u16),
+ GFP_KERNEL);
+ if (!save_state) {
+ printk(KERN_ERR "Out of memory in pci_save_msix_state\n");
+ return -ENOMEM;
+ }
+ *((u16 *)&save_state->data[0]) = control;
+
+ disable_msi_mode(dev, pos, PCI_CAP_ID_MSIX);
+ save_state->cap_nr = PCI_CAP_ID_MSIX;
+ pci_add_saved_cap(dev, save_state);
+ return 0;
+}
+
+void pci_restore_msix_state(struct pci_dev *dev)
+{
+ u16 save;
+ int pos;
+ int vector, head, tail = 0;
+ void __iomem *base;
+ int j;
+ struct msg_address address;
+ struct msg_data data;
+ struct msi_desc *entry;
+ int temp;
+ struct pci_cap_saved_state *save_state;
+
+ save_state = pci_find_saved_cap(dev, PCI_CAP_ID_MSIX);
+ if (!save_state)
+ return;
+ save = *((u16 *)&save_state->data[0]);
+ pci_remove_saved_cap(save_state);
+ kfree(save_state);
+
+ pos = pci_find_capability(dev, PCI_CAP_ID_MSIX);
+ if (pos <= 0)
+ return;
+
+ /* route the table */
+ temp = dev->irq;
+ if (msi_lookup_vector(dev, PCI_CAP_ID_MSIX))
+ return;
+ vector = head = dev->irq;
+ while (head != tail) {
+ entry = msi_desc[vector];
+ base = entry->mask_base;
+ j = entry->msi_attrib.entry_nr;
+
+ msi_address_init(&address);
+ msi_data_init(&data, vector);
+
+ address.lo_address.value &= MSI_ADDRESS_DEST_ID_MASK;
+ address.lo_address.value |= entry->msi_attrib.current_cpu <<
+ MSI_TARGET_CPU_SHIFT;
+
+ writel(address.lo_address.value,
+ base + j * PCI_MSIX_ENTRY_SIZE +
+ PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET);
+ writel(address.hi_address,
+ base + j * PCI_MSIX_ENTRY_SIZE +
+ PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET);
+ writel(*(u32*)&data,
+ base + j * PCI_MSIX_ENTRY_SIZE +
+ PCI_MSIX_ENTRY_DATA_OFFSET);
+
+ tail = msi_desc[vector]->link.tail;
+ vector = tail;
+ }
+ dev->irq = temp;
+
+ pci_write_config_word(dev, msi_control_reg(pos), save);
+ enable_msi_mode(dev, pos, PCI_CAP_ID_MSIX);
+}
+#endif
+
+static void msi_register_init(struct pci_dev *dev, struct msi_desc *entry)
+{
+ struct msg_address address;
+ struct msg_data data;
+ int pos, vector = dev->irq;
+ u16 control;
+
+ pos = pci_find_capability(dev, PCI_CAP_ID_MSI);
+ pci_read_config_word(dev, msi_control_reg(pos), &control);
+ /* Configure MSI capability structure */
+ msi_address_init(&address);
+ msi_data_init(&data, vector);
+ entry->msi_attrib.current_cpu = ((address.lo_address.u.dest_id >>
+ MSI_TARGET_CPU_SHIFT) & MSI_TARGET_CPU_MASK);
+ pci_write_config_dword(dev, msi_lower_address_reg(pos),
+ address.lo_address.value);
+ if (is_64bit_address(control)) {
+ pci_write_config_dword(dev,
+ msi_upper_address_reg(pos), address.hi_address);
+ pci_write_config_word(dev,
+ msi_data_reg(pos, 1), *((u32*)&data));
+ } else
+ pci_write_config_word(dev,
+ msi_data_reg(pos, 0), *((u32*)&data));
+ if (entry->msi_attrib.maskbit) {
+ unsigned int maskbits, temp;
+ /* All MSIs are unmasked by default, Mask them all */
+ pci_read_config_dword(dev,
+ msi_mask_bits_reg(pos, is_64bit_address(control)),
+ &maskbits);
+ temp = (1 << multi_msi_capable(control));
+ temp = ((temp - 1) & ~temp);
+ maskbits |= temp;
+ pci_write_config_dword(dev,
+ msi_mask_bits_reg(pos, is_64bit_address(control)),
+ maskbits);
+ }
+}
+
/**
* msi_capability_init - configure device's MSI capability structure
* @dev: pointer to the pci_dev data structure of MSI device function
@@ -516,8 +711,6 @@ void pci_scan_msi_device(struct pci_dev *dev)
static int msi_capability_init(struct pci_dev *dev)
{
struct msi_desc *entry;
- struct msg_address address;
- struct msg_data data;
int pos, vector;
u16 control;
@@ -549,33 +742,8 @@ static int msi_capability_init(struct pci_dev *dev)
/* Replace with MSI handler */
irq_handler_init(PCI_CAP_ID_MSI, vector, entry->msi_attrib.maskbit);
/* Configure MSI capability structure */
- msi_address_init(&address);
- msi_data_init(&data, vector);
- entry->msi_attrib.current_cpu = ((address.lo_address.u.dest_id >>
- MSI_TARGET_CPU_SHIFT) & MSI_TARGET_CPU_MASK);
- pci_write_config_dword(dev, msi_lower_address_reg(pos),
- address.lo_address.value);
- if (is_64bit_address(control)) {
- pci_write_config_dword(dev,
- msi_upper_address_reg(pos), address.hi_address);
- pci_write_config_word(dev,
- msi_data_reg(pos, 1), *((u32*)&data));
- } else
- pci_write_config_word(dev,
- msi_data_reg(pos, 0), *((u32*)&data));
- if (entry->msi_attrib.maskbit) {
- unsigned int maskbits, temp;
- /* All MSIs are unmasked by default, Mask them all */
- pci_read_config_dword(dev,
- msi_mask_bits_reg(pos, is_64bit_address(control)),
- &maskbits);
- temp = (1 << multi_msi_capable(control));
- temp = ((temp - 1) & ~temp);
- maskbits |= temp;
- pci_write_config_dword(dev,
- msi_mask_bits_reg(pos, is_64bit_address(control)),
- maskbits);
- }
+ msi_register_init(dev, entry);
+
attach_msi_entry(entry, vector);
/* Set MSI enabled bits */
enable_msi_mode(dev, pos, PCI_CAP_ID_MSI);
@@ -731,6 +899,7 @@ int pci_enable_msi(struct pci_dev* dev)
vector_irq[dev->irq] = -1;
nr_released_vectors--;
spin_unlock_irqrestore(&msi_lock, flags);
+ msi_register_init(dev, msi_desc[dev->irq]);
enable_msi_mode(dev, pos, PCI_CAP_ID_MSI);
return 0;
}
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 042fa5265cf..2329f941a0d 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -446,6 +446,10 @@ pci_save_state(struct pci_dev *dev)
/* XXX: 100% dword access ok here? */
for (i = 0; i < 16; i++)
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;
return 0;
}
@@ -460,6 +464,8 @@ pci_restore_state(struct pci_dev *dev)
for (i = 0; i < 16; i++)
pci_write_config_dword(dev,i * 4, dev->saved_config_space[i]);
+ 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 8f3fb47ea67..30630cbe2fe 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -55,6 +55,17 @@ 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
extern int pcie_mch_quirk;
extern struct device_attribute pci_dev_attrs[];
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 4970f47be72..827550d25c9 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -592,7 +592,7 @@ static void __init quirk_amd_8131_ioapic(struct pci_dev *dev)
pci_write_config_byte( dev, AMD8131_MISC, tmp);
}
}
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_APIC, quirk_amd_8131_ioapic );
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic);
static void __init quirk_svw_msi(struct pci_dev *dev)
{
@@ -921,6 +921,7 @@ static void __init asus_hides_smbus_hostbridge(struct pci_dev *dev)
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;
}
}
@@ -999,6 +1000,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_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_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc );
static void __init asus_hides_smbus_lpc_ich6(struct pci_dev *dev)
{
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 08:40:45 +0000