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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 12:05:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 12:05:36 -0700
commitfdb2f9c2ebd4f07d7b11a3bc86d8c669eb841697 (patch)
treed85824518fc13a8c84b7399019fc11ad77aaa120 /include
parent81f56e5375e84689b891e0e6c5a02ec12a1f18d9 (diff)
parent78c8f84302ce007aedcfa11912fd4aacf22727ab (diff)
downloadlinux-fdb2f9c2ebd4f07d7b11a3bc86d8c669eb841697.tar.bz2
Merge tag 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas: "Host bridge hotplug - Protect acpi_pci_drivers and acpi_pci_roots (Taku Izumi) - Clear host bridge resource info to avoid issue when releasing (Yinghai Lu) - Notify acpi_pci_drivers when hot-plugging host bridges (Jiang Liu) - Use standard list ops for acpi_pci_drivers (Jiang Liu) Device hotplug - Use pci_get_domain_bus_and_slot() to close hotplug races (Jiang Liu) - Remove fakephp driver (Bjorn Helgaas) - Fix VGA ref count in hotplug remove path (Yinghai Lu) - Allow acpiphp to handle PCIe ports without native hotplug (Jiang Liu) - Implement resume regardless of pciehp_force param (Oliver Neukum) - Make pci_fixup_irqs() work after init (Thierry Reding) Miscellaneous - Add pci_pcie_type(dev) and remove pci_dev.pcie_type (Yijing Wang) - Factor out PCI Express Capability accessors (Jiang Liu) - Add pcibios_window_alignment() so powerpc EEH can use generic resource assignment (Gavin Shan) - Make pci_error_handlers const (Stephen Hemminger) - Cleanup drivers/pci/remove.c (Bjorn Helgaas) - Improve Vendor-Specific Extended Capability support (Bjorn Helgaas) - Use standard list ops for bus->devices (Bjorn Helgaas) - Avoid kmalloc in pci_get_subsys() and pci_get_class() (Feng Tang) - Reassign invalid bus number ranges (Intel DP43BF workaround) (Yinghai Lu)" * tag 'for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (102 commits) PCI: acpiphp: Handle PCIe ports without native hotplug capability PCI/ACPI: Use acpi_driver_data() rather than searching acpi_pci_roots PCI/ACPI: Protect acpi_pci_roots list with mutex PCI/ACPI: Use acpi_pci_root info rather than looking it up again PCI/ACPI: Pass acpi_pci_root to acpi_pci_drivers' add/remove interface PCI/ACPI: Protect acpi_pci_drivers list with mutex PCI/ACPI: Notify acpi_pci_drivers when hot-plugging PCI root bridges PCI/ACPI: Use normal list for struct acpi_pci_driver PCI/ACPI: Use DEVICE_ACPI_HANDLE rather than searching acpi_pci_roots PCI: Fix default vga ref_count ia64/PCI: Clear host bridge aperture struct resource x86/PCI: Clear host bridge aperture struct resource PCI: Stop all children first, before removing all children Revert "PCI: Use hotplug-safe pci_get_domain_bus_and_slot()" PCI: Provide a default pcibios_update_irq() PCI: Discard __init annotations for pci_fixup_irqs() and related functions PCI: Use correct type when freeing bus resource list PCI: Check P2P bridge for invalid secondary/subordinate range PCI: Convert "new_id"/"remove_id" into generic pci_bus driver attributes xen-pcifront: Use hotplug-safe pci_get_domain_bus_and_slot() ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/acpi.h6
-rw-r--r--include/linux/pci-acpi.h17
-rw-r--r--include/linux/pci.h55
-rw-r--r--include/linux/pci_regs.h7
-rw-r--r--include/linux/pcieport_if.h2
5 files changed, 70 insertions, 17 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 4f2a76224509..90be98981102 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -138,9 +138,9 @@ void acpi_penalize_isa_irq(int irq, int active);
void acpi_pci_irq_disable (struct pci_dev *dev);
struct acpi_pci_driver {
- struct acpi_pci_driver *next;
- int (*add)(acpi_handle handle);
- void (*remove)(acpi_handle handle);
+ struct list_head node;
+ int (*add)(struct acpi_pci_root *root);
+ void (*remove)(struct acpi_pci_root *root);
};
int acpi_pci_register_driver(struct acpi_pci_driver *driver);
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index 248fba2af98a..9a22b5efb384 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -22,19 +22,24 @@ extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
{
struct pci_bus *pbus = pdev->bus;
+
/* Find a PCI root bus */
while (!pci_is_root_bus(pbus))
pbus = pbus->parent;
- return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
- pbus->number);
+
+ return DEVICE_ACPI_HANDLE(pbus->bridge);
}
static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
{
- if (!pci_is_root_bus(pbus))
- return DEVICE_ACPI_HANDLE(&(pbus->self->dev));
- return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
- pbus->number);
+ struct device *dev;
+
+ if (pci_is_root_bus(pbus))
+ dev = pbus->bridge;
+ else
+ dev = &pbus->self->dev;
+
+ return DEVICE_ACPI_HANDLE(dev);
}
#endif
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 5faa8310eec9..be1de01de1c4 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -254,10 +254,10 @@ struct pci_dev {
u8 revision; /* PCI revision, low byte of class word */
u8 hdr_type; /* PCI header type (`multi' flag masked out) */
u8 pcie_cap; /* PCI-E capability offset */
- u8 pcie_type:4; /* PCI-E device/port type */
u8 pcie_mpss:3; /* PCI-E Max Payload Size Supported */
u8 rom_base_reg; /* which config register controls the ROM */
u8 pin; /* which interrupt pin this device uses */
+ u16 pcie_flags_reg; /* cached PCI-E Capabilities Register */
struct pci_driver *driver; /* which driver has allocated this device */
u64 dma_mask; /* Mask of the bits of bus address this
@@ -369,7 +369,6 @@ static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
extern struct pci_dev *alloc_pci_dev(void);
-#define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list)
#define to_pci_dev(n) container_of(n, struct pci_dev, dev)
#define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL)
@@ -596,7 +595,7 @@ struct pci_driver {
int (*resume_early) (struct pci_dev *dev);
int (*resume) (struct pci_dev *dev); /* Device woken up */
void (*shutdown) (struct pci_dev *dev);
- struct pci_error_handlers *err_handler;
+ const struct pci_error_handlers *err_handler;
struct device_driver driver;
struct pci_dynids dynids;
};
@@ -734,9 +733,7 @@ u8 pci_common_swizzle(struct pci_dev *dev, u8 *pinp);
extern struct pci_dev *pci_dev_get(struct pci_dev *dev);
extern void pci_dev_put(struct pci_dev *dev);
extern void pci_remove_bus(struct pci_bus *b);
-extern void __pci_remove_bus_device(struct pci_dev *dev);
extern void pci_stop_and_remove_bus_device(struct pci_dev *dev);
-extern void pci_stop_bus_device(struct pci_dev *dev);
void pci_setup_cardbus(struct pci_bus *bus);
extern void pci_sort_breadthfirst(void);
#define dev_is_pci(d) ((d)->bus == &pci_bus_type)
@@ -755,6 +752,7 @@ enum pci_lost_interrupt_reason pci_lost_interrupt(struct pci_dev *dev);
int pci_find_capability(struct pci_dev *dev, int cap);
int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap);
int pci_find_ext_capability(struct pci_dev *dev, int cap);
+int pci_find_next_ext_capability(struct pci_dev *dev, int pos, int cap);
int pci_find_ht_capability(struct pci_dev *dev, int ht_cap);
int pci_find_next_ht_capability(struct pci_dev *dev, int pos, int ht_cap);
struct pci_bus *pci_find_next_bus(const struct pci_bus *from);
@@ -816,6 +814,39 @@ static inline int pci_write_config_dword(const struct pci_dev *dev, int where,
return pci_bus_write_config_dword(dev->bus, dev->devfn, where, val);
}
+int pcie_capability_read_word(struct pci_dev *dev, int pos, u16 *val);
+int pcie_capability_read_dword(struct pci_dev *dev, int pos, u32 *val);
+int pcie_capability_write_word(struct pci_dev *dev, int pos, u16 val);
+int pcie_capability_write_dword(struct pci_dev *dev, int pos, u32 val);
+int pcie_capability_clear_and_set_word(struct pci_dev *dev, int pos,
+ u16 clear, u16 set);
+int pcie_capability_clear_and_set_dword(struct pci_dev *dev, int pos,
+ u32 clear, u32 set);
+
+static inline int pcie_capability_set_word(struct pci_dev *dev, int pos,
+ u16 set)
+{
+ return pcie_capability_clear_and_set_word(dev, pos, 0, set);
+}
+
+static inline int pcie_capability_set_dword(struct pci_dev *dev, int pos,
+ u32 set)
+{
+ return pcie_capability_clear_and_set_dword(dev, pos, 0, set);
+}
+
+static inline int pcie_capability_clear_word(struct pci_dev *dev, int pos,
+ u16 clear)
+{
+ return pcie_capability_clear_and_set_word(dev, pos, clear, 0);
+}
+
+static inline int pcie_capability_clear_dword(struct pci_dev *dev, int pos,
+ u32 clear)
+{
+ return pcie_capability_clear_and_set_dword(dev, pos, clear, 0);
+}
+
/* user-space driven config access */
int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
@@ -1013,7 +1044,6 @@ void pci_unregister_driver(struct pci_driver *dev);
module_driver(__pci_driver, pci_register_driver, \
pci_unregister_driver)
-void pci_stop_and_remove_behind_bridge(struct pci_dev *dev);
struct pci_driver *pci_dev_driver(const struct pci_dev *dev);
int pci_add_dynid(struct pci_driver *drv,
unsigned int vendor, unsigned int device,
@@ -1031,6 +1061,8 @@ int pci_cfg_space_size_ext(struct pci_dev *dev);
int pci_cfg_space_size(struct pci_dev *dev);
unsigned char pci_bus_max_busnr(struct pci_bus *bus);
void pci_setup_bridge(struct pci_bus *bus);
+resource_size_t pcibios_window_alignment(struct pci_bus *bus,
+ unsigned long type);
#define PCI_VGA_STATE_CHANGE_BRIDGE (1 << 0)
#define PCI_VGA_STATE_CHANGE_DECODES (1 << 1)
@@ -1472,7 +1504,7 @@ enum pci_fixup_pass {
/* Anonymous variables would be nice... */
#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, class, \
class_shift, hook) \
- static const struct pci_fixup const __pci_fixup_##name __used \
+ static const struct pci_fixup __pci_fixup_##name __used \
__attribute__((__section__(#section), aligned((sizeof(void *))))) \
= { vendor, device, class, class_shift, hook };
@@ -1650,6 +1682,15 @@ static inline bool pci_is_pcie(struct pci_dev *dev)
return !!pci_pcie_cap(dev);
}
+/**
+ * pci_pcie_type - get the PCIe device/port type
+ * @dev: PCI device
+ */
+static inline int pci_pcie_type(const struct pci_dev *dev)
+{
+ return (dev->pcie_flags_reg & PCI_EXP_FLAGS_TYPE) >> 4;
+}
+
void pci_request_acs(void);
bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags);
bool pci_acs_path_enabled(struct pci_dev *start,
diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
index 7fb75b143755..20ae747ddf34 100644
--- a/include/linux/pci_regs.h
+++ b/include/linux/pci_regs.h
@@ -549,6 +549,7 @@
#define PCI_EXP_LNKCAP2_SLS_8_0GB 0x04 /* Current Link Speed 8.0GT/s */
#define PCI_EXP_LNKCAP2_CROSSLINK 0x100 /* Crosslink supported */
#define PCI_EXP_LNKCTL2 48 /* Link Control 2 */
+#define PCI_EXP_LNKSTA2 50 /* Link Status 2 */
#define PCI_EXP_SLTCTL2 56 /* Slot Control 2 */
/* Extended Capabilities (PCI-X 2.0 and Express) */
@@ -677,6 +678,12 @@
#define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */
#define PCI_EXT_CAP_PWR_SIZEOF 16
+/* Vendor-Specific (VSEC, PCI_EXT_CAP_ID_VNDR) */
+#define PCI_VNDR_HEADER 4 /* Vendor-Specific Header */
+#define PCI_VNDR_HEADER_ID(x) ((x) & 0xffff)
+#define PCI_VNDR_HEADER_REV(x) (((x) >> 16) & 0xf)
+#define PCI_VNDR_HEADER_LEN(x) (((x) >> 20) & 0xfff)
+
/*
* Hypertransport sub capability types
*
diff --git a/include/linux/pcieport_if.h b/include/linux/pcieport_if.h
index 6775532b92a9..e6f91b1406d8 100644
--- a/include/linux/pcieport_if.h
+++ b/include/linux/pcieport_if.h
@@ -49,7 +49,7 @@ struct pcie_port_service_driver {
int (*resume) (struct pcie_device *dev);
/* Service Error Recovery Handler */
- struct pci_error_handlers *err_handler;
+ const struct pci_error_handlers *err_handler;
/* Link Reset Capability - AER service driver specific */
pci_ers_result_t (*reset_link) (struct pci_dev *dev);