Merge branch 'pci/daniel-numachip' into next
* pci/daniel-numachip:
x86/PCI: Add NumaChip remote PCI support
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
index dff1f48..1ce5ae3 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci
+++ b/Documentation/ABI/testing/sysfs-bus-pci
@@ -222,3 +222,37 @@
satisfied too. Reading this attribute will show the current
value of d3cold_allowed bit. Writing this attribute will set
the value of d3cold_allowed bit.
+
+What: /sys/bus/pci/devices/.../sriov_totalvfs
+Date: November 2012
+Contact: Donald Dutile <ddutile@redhat.com>
+Description:
+ This file appears when a physical PCIe device supports SR-IOV.
+ Userspace applications can read this file to determine the
+ maximum number of Virtual Functions (VFs) a PCIe physical
+ function (PF) can support. Typically, this is the value reported
+ in the PF's SR-IOV extended capability structure's TotalVFs
+ element. Drivers have the ability at probe time to reduce the
+ value read from this file via the pci_sriov_set_totalvfs()
+ function.
+
+What: /sys/bus/pci/devices/.../sriov_numvfs
+Date: November 2012
+Contact: Donald Dutile <ddutile@redhat.com>
+Description:
+ This file appears when a physical PCIe device supports SR-IOV.
+ Userspace applications can read and write to this file to
+ determine and control the enablement or disablement of Virtual
+ Functions (VFs) on the physical function (PF). A read of this
+ file will return the number of VFs that are enabled on this PF.
+ A number written to this file will enable the specified
+ number of VFs. A userspace application would typically read the
+ file and check that the value is zero, and then write the number
+ of VFs that should be enabled on the PF; the value written
+ should be less than or equal to the value in the sriov_totalvfs
+ file. A userspace application wanting to disable the VFs would
+ write a zero to this file. The core ensures that valid values
+ are written to this file, and returns errors when values are not
+ valid. For example, writing a 2 to this file when sriov_numvfs
+ is not 0 and not 2 already will return an error. Writing a 10
+ when the value of sriov_totalvfs is 8 will return an error.
diff --git a/Documentation/PCI/pci-iov-howto.txt b/Documentation/PCI/pci-iov-howto.txt
index fc73ef5..cfaca7e 100644
--- a/Documentation/PCI/pci-iov-howto.txt
+++ b/Documentation/PCI/pci-iov-howto.txt
@@ -2,6 +2,9 @@
Copyright (C) 2009 Intel Corporation
Yu Zhao <yu.zhao@intel.com>
+ Update: November 2012
+ -- sysfs-based SRIOV enable-/disable-ment
+ Donald Dutile <ddutile@redhat.com>
1. Overview
@@ -24,10 +27,21 @@
2.1 How can I enable SR-IOV capability
-The device driver (PF driver) will control the enabling and disabling
-of the capability via API provided by SR-IOV core. If the hardware
-has SR-IOV capability, loading its PF driver would enable it and all
-VFs associated with the PF.
+Multiple methods are available for SR-IOV enablement.
+In the first method, the device driver (PF driver) will control the
+enabling and disabling of the capability via API provided by SR-IOV core.
+If the hardware has SR-IOV capability, loading its PF driver would
+enable it and all VFs associated with the PF. Some PF drivers require
+a module parameter to be set to determine the number of VFs to enable.
+In the second method, a write to the sysfs file sriov_numvfs will
+enable and disable the VFs associated with a PCIe PF. This method
+enables per-PF, VF enable/disable values versus the first method,
+which applies to all PFs of the same device. Additionally, the
+PCI SRIOV core support ensures that enable/disable operations are
+valid to reduce duplication in multiple drivers for the same
+checks, e.g., check numvfs == 0 if enabling VFs, ensure
+numvfs <= totalvfs.
+The second method is the recommended method for new/future VF devices.
2.2 How can I use the Virtual Functions
@@ -40,13 +54,22 @@
3.1 SR-IOV API
To enable SR-IOV capability:
+(a) For the first method, in the driver:
int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn);
'nr_virtfn' is number of VFs to be enabled.
+(b) For the second method, from sysfs:
+ echo 'nr_virtfn' > \
+ /sys/bus/pci/devices/<DOMAIN:BUS:DEVICE.FUNCTION>/sriov_numvfs
To disable SR-IOV capability:
+(a) For the first method, in the driver:
void pci_disable_sriov(struct pci_dev *dev);
+(b) For the second method, from sysfs:
+ echo 0 > \
+ /sys/bus/pci/devices/<DOMAIN:BUS:DEVICE.FUNCTION>/sriov_numvfs
To notify SR-IOV core of Virtual Function Migration:
+(a) In the driver:
irqreturn_t pci_sriov_migration(struct pci_dev *dev);
3.2 Usage example
@@ -88,6 +111,22 @@
...
}
+static int dev_sriov_configure(struct pci_dev *dev, int numvfs)
+{
+ if (numvfs > 0) {
+ ...
+ pci_enable_sriov(dev, numvfs);
+ ...
+ return numvfs;
+ }
+ if (numvfs == 0) {
+ ....
+ pci_disable_sriov(dev);
+ ...
+ return 0;
+ }
+}
+
static struct pci_driver dev_driver = {
.name = "SR-IOV Physical Function driver",
.id_table = dev_id_table,
@@ -96,4 +135,5 @@
.suspend = dev_suspend,
.resume = dev_resume,
.shutdown = dev_shutdown,
+ .sriov_configure = dev_sriov_configure,
};
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index c760e07..8a54313 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -8,6 +8,7 @@
* ----------------------------------------------------------------------- */
#include <linux/efi.h>
+#include <linux/pci.h>
#include <asm/efi.h>
#include <asm/setup.h>
#include <asm/desc.h>
@@ -243,6 +244,121 @@
*size = len;
}
+static efi_status_t setup_efi_pci(struct boot_params *params)
+{
+ efi_pci_io_protocol *pci;
+ efi_status_t status;
+ void **pci_handle;
+ efi_guid_t pci_proto = EFI_PCI_IO_PROTOCOL_GUID;
+ unsigned long nr_pci, size = 0;
+ int i;
+ struct setup_data *data;
+
+ data = (struct setup_data *)params->hdr.setup_data;
+
+ while (data && data->next)
+ data = (struct setup_data *)data->next;
+
+ status = efi_call_phys5(sys_table->boottime->locate_handle,
+ EFI_LOCATE_BY_PROTOCOL, &pci_proto,
+ NULL, &size, pci_handle);
+
+ if (status == EFI_BUFFER_TOO_SMALL) {
+ status = efi_call_phys3(sys_table->boottime->allocate_pool,
+ EFI_LOADER_DATA, size, &pci_handle);
+
+ if (status != EFI_SUCCESS)
+ return status;
+
+ status = efi_call_phys5(sys_table->boottime->locate_handle,
+ EFI_LOCATE_BY_PROTOCOL, &pci_proto,
+ NULL, &size, pci_handle);
+ }
+
+ if (status != EFI_SUCCESS)
+ goto free_handle;
+
+ nr_pci = size / sizeof(void *);
+ for (i = 0; i < nr_pci; i++) {
+ void *h = pci_handle[i];
+ uint64_t attributes;
+ struct pci_setup_rom *rom;
+
+ status = efi_call_phys3(sys_table->boottime->handle_protocol,
+ h, &pci_proto, &pci);
+
+ if (status != EFI_SUCCESS)
+ continue;
+
+ if (!pci)
+ continue;
+
+ status = efi_call_phys4(pci->attributes, pci,
+ EfiPciIoAttributeOperationGet, 0,
+ &attributes);
+
+ if (status != EFI_SUCCESS)
+ continue;
+
+ if (!attributes & EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM)
+ continue;
+
+ if (!pci->romimage || !pci->romsize)
+ continue;
+
+ size = pci->romsize + sizeof(*rom);
+
+ status = efi_call_phys3(sys_table->boottime->allocate_pool,
+ EFI_LOADER_DATA, size, &rom);
+
+ if (status != EFI_SUCCESS)
+ continue;
+
+ rom->data.type = SETUP_PCI;
+ rom->data.len = size - sizeof(struct setup_data);
+ rom->data.next = 0;
+ rom->pcilen = pci->romsize;
+
+ status = efi_call_phys5(pci->pci.read, pci,
+ EfiPciIoWidthUint16, PCI_VENDOR_ID,
+ 1, &(rom->vendor));
+
+ if (status != EFI_SUCCESS)
+ goto free_struct;
+
+ status = efi_call_phys5(pci->pci.read, pci,
+ EfiPciIoWidthUint16, PCI_DEVICE_ID,
+ 1, &(rom->devid));
+
+ if (status != EFI_SUCCESS)
+ goto free_struct;
+
+ status = efi_call_phys5(pci->get_location, pci,
+ &(rom->segment), &(rom->bus),
+ &(rom->device), &(rom->function));
+
+ if (status != EFI_SUCCESS)
+ goto free_struct;
+
+ memcpy(rom->romdata, pci->romimage, pci->romsize);
+
+ if (data)
+ data->next = (uint64_t)rom;
+ else
+ params->hdr.setup_data = (uint64_t)rom;
+
+ data = (struct setup_data *)rom;
+
+ continue;
+ free_struct:
+ efi_call_phys1(sys_table->boottime->free_pool, rom);
+ }
+
+free_handle:
+ efi_call_phys1(sys_table->boottime->free_pool, pci_handle);
+ return status;
+}
+
/*
* See if we have Graphics Output Protocol
*/
@@ -1026,6 +1142,8 @@
setup_graphics(boot_params);
+ setup_efi_pci(boot_params);
+
status = efi_call_phys3(sys_table->boottime->allocate_pool,
EFI_LOADER_DATA, sizeof(*gdt),
(void **)&gdt);
diff --git a/arch/x86/include/asm/bootparam.h b/arch/x86/include/asm/bootparam.h
index 2ad874c..92862cd 100644
--- a/arch/x86/include/asm/bootparam.h
+++ b/arch/x86/include/asm/bootparam.h
@@ -13,6 +13,7 @@
#define SETUP_NONE 0
#define SETUP_E820_EXT 1
#define SETUP_DTB 2
+#define SETUP_PCI 3
/* extensible setup data list node */
struct setup_data {
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 6e41b93..dba7805 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -171,4 +171,16 @@
}
#endif
+struct pci_setup_rom {
+ struct setup_data data;
+ uint16_t vendor;
+ uint16_t devid;
+ uint64_t pcilen;
+ unsigned long segment;
+ unsigned long bus;
+ unsigned long device;
+ unsigned long function;
+ uint8_t romdata[0];
+};
+
#endif /* _ASM_X86_PCI_H */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index ca45696..c228322 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -143,11 +143,7 @@
}
#endif
-#ifndef CONFIG_DEBUG_BOOT_PARAMS
-struct boot_params __initdata boot_params;
-#else
struct boot_params boot_params;
-#endif
/*
* Machine setup..
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 192397c..0c01261f 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -12,6 +12,7 @@
char name[16];
unsigned int res_num;
struct resource *res;
+ resource_size_t *res_offset;
struct pci_sysdata sd;
#ifdef CONFIG_PCI_MMCONFIG
bool mcfg_added;
@@ -22,6 +23,7 @@
};
static bool pci_use_crs = true;
+static bool pci_ignore_seg = false;
static int __init set_use_crs(const struct dmi_system_id *id)
{
@@ -35,7 +37,14 @@
return 0;
}
-static const struct dmi_system_id pci_use_crs_table[] __initconst = {
+static int __init set_ignore_seg(const struct dmi_system_id *id)
+{
+ printk(KERN_INFO "PCI: %s detected: ignoring ACPI _SEG\n", id->ident);
+ pci_ignore_seg = true;
+ return 0;
+}
+
+static const struct dmi_system_id pci_crs_quirks[] __initconst = {
/* http://bugzilla.kernel.org/show_bug.cgi?id=14183 */
{
.callback = set_use_crs,
@@ -98,6 +107,16 @@
DMI_MATCH(DMI_BIOS_VERSION, "6JET85WW (1.43 )"),
},
},
+
+ /* https://bugzilla.kernel.org/show_bug.cgi?id=15362 */
+ {
+ .callback = set_ignore_seg,
+ .ident = "HP xw9300",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP xw9300 Workstation"),
+ },
+ },
{}
};
@@ -108,7 +127,7 @@
if (dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL) && year < 2008)
pci_use_crs = false;
- dmi_check_system(pci_use_crs_table);
+ dmi_check_system(pci_crs_quirks);
/*
* If the user specifies "pci=use_crs" or "pci=nocrs" explicitly, that
@@ -305,6 +324,7 @@
res->flags = flags;
res->start = start;
res->end = end;
+ info->res_offset[info->res_num] = addr.translation_offset;
if (!pci_use_crs) {
dev_printk(KERN_DEBUG, &info->bridge->dev,
@@ -374,7 +394,8 @@
"ignoring host bridge window %pR (conflicts with %s %pR)\n",
res, conflict->name, conflict);
else
- pci_add_resource(resources, res);
+ pci_add_resource_offset(resources, res,
+ info->res_offset[i]);
}
}
@@ -382,6 +403,8 @@
{
kfree(info->res);
info->res = NULL;
+ kfree(info->res_offset);
+ info->res_offset = NULL;
info->res_num = 0;
}
@@ -432,10 +455,20 @@
return;
size = sizeof(*info->res) * info->res_num;
- info->res_num = 0;
info->res = kzalloc(size, GFP_KERNEL);
- if (!info->res)
+ if (!info->res) {
+ info->res_num = 0;
return;
+ }
+
+ size = sizeof(*info->res_offset) * info->res_num;
+ info->res_num = 0;
+ info->res_offset = kzalloc(size, GFP_KERNEL);
+ if (!info->res_offset) {
+ kfree(info->res);
+ info->res = NULL;
+ return;
+ }
acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource,
info);
@@ -455,6 +488,9 @@
int pxm;
#endif
+ if (pci_ignore_seg)
+ domain = 0;
+
if (domain && !pci_domains_supported) {
printk(KERN_WARNING "pci_bus %04x:%02x: "
"ignored (multiple domains not supported)\n",
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 720e973f..6a6b017 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -17,6 +17,7 @@
#include <asm/io.h>
#include <asm/smp.h>
#include <asm/pci_x86.h>
+#include <asm/setup.h>
unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
PCI_PROBE_MMCONF;
@@ -608,6 +609,35 @@
return (pci_probe & PCI_ASSIGN_ALL_BUSSES) ? 1 : 0;
}
+int pcibios_add_device(struct pci_dev *dev)
+{
+ struct setup_data *data;
+ struct pci_setup_rom *rom;
+ u64 pa_data;
+
+ pa_data = boot_params.hdr.setup_data;
+ while (pa_data) {
+ data = phys_to_virt(pa_data);
+
+ if (data->type == SETUP_PCI) {
+ rom = (struct pci_setup_rom *)data;
+
+ if ((pci_domain_nr(dev->bus) == rom->segment) &&
+ (dev->bus->number == rom->bus) &&
+ (PCI_SLOT(dev->devfn) == rom->device) &&
+ (PCI_FUNC(dev->devfn) == rom->function) &&
+ (dev->vendor == rom->vendor) &&
+ (dev->device == rom->devid)) {
+ dev->rom = (void *)(unsigned long)(pa_data +
+ offsetof(struct pci_setup_rom, romdata));
+ dev->romlen = rom->pcilen;
+ }
+ }
+ pa_data = data->next;
+ }
+ return 0;
+}
+
int pcibios_enable_device(struct pci_dev *dev, int mask)
{
int err;
@@ -626,7 +656,7 @@
pcibios_disable_irq(dev);
}
-int pci_ext_cfg_avail(struct pci_dev *dev)
+int pci_ext_cfg_avail(void)
{
if (raw_pci_ext_ops)
return 1;
diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
index 2ef0409..a1dee29 100644
--- a/drivers/acpi/pci_bind.c
+++ b/drivers/acpi/pci_bind.c
@@ -45,11 +45,12 @@
device_set_run_wake(&dev->dev, false);
pci_acpi_remove_pm_notifier(device);
+ acpi_power_resource_unregister_device(&dev->dev, device->handle);
if (!dev->subordinate)
goto out;
- acpi_pci_irq_del_prt(dev->subordinate);
+ acpi_pci_irq_del_prt(pci_domain_nr(dev->bus), dev->subordinate->number);
device->ops.bind = NULL;
device->ops.unbind = NULL;
@@ -63,7 +64,7 @@
{
acpi_status status;
acpi_handle handle;
- struct pci_bus *bus;
+ unsigned char bus;
struct pci_dev *dev;
dev = acpi_get_pci_dev(device->handle);
@@ -71,6 +72,7 @@
return 0;
pci_acpi_add_pm_notifier(device, dev);
+ acpi_power_resource_register_device(&dev->dev, device->handle);
if (device->wakeup.flags.run_wake)
device_set_run_wake(&dev->dev, true);
@@ -100,11 +102,11 @@
goto out;
if (dev->subordinate)
- bus = dev->subordinate;
+ bus = dev->subordinate->number;
else
- bus = dev->bus;
+ bus = dev->bus->number;
- acpi_pci_irq_add_prt(device->handle, bus);
+ acpi_pci_irq_add_prt(device->handle, pci_domain_nr(dev->bus), bus);
out:
pci_dev_put(dev);
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 0eefa12..8835cc3 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -184,7 +184,7 @@
}
}
-static int acpi_pci_irq_add_entry(acpi_handle handle, struct pci_bus *bus,
+static int acpi_pci_irq_add_entry(acpi_handle handle, int segment, int bus,
struct acpi_pci_routing_table *prt)
{
struct acpi_prt_entry *entry;
@@ -198,8 +198,8 @@
* 1=INTA, 2=INTB. We use the PCI encoding throughout, so convert
* it here.
*/
- entry->id.segment = pci_domain_nr(bus);
- entry->id.bus = bus->number;
+ entry->id.segment = segment;
+ entry->id.bus = bus;
entry->id.device = (prt->address >> 16) & 0xFFFF;
entry->pin = prt->pin + 1;
@@ -244,7 +244,7 @@
return 0;
}
-int acpi_pci_irq_add_prt(acpi_handle handle, struct pci_bus *bus)
+int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
{
acpi_status status;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -273,7 +273,7 @@
entry = buffer.pointer;
while (entry && (entry->length > 0)) {
- acpi_pci_irq_add_entry(handle, bus, entry);
+ acpi_pci_irq_add_entry(handle, segment, bus, entry);
entry = (struct acpi_pci_routing_table *)
((unsigned long)entry + entry->length);
}
@@ -282,17 +282,16 @@
return 0;
}
-void acpi_pci_irq_del_prt(struct pci_bus *bus)
+void acpi_pci_irq_del_prt(int segment, int bus)
{
struct acpi_prt_entry *entry, *tmp;
printk(KERN_DEBUG
"ACPI: Delete PCI Interrupt Routing Table for %04x:%02x\n",
- pci_domain_nr(bus), bus->number);
+ segment, bus);
spin_lock(&acpi_prt_lock);
list_for_each_entry_safe(entry, tmp, &acpi_prt_list, list) {
- if (pci_domain_nr(bus) == entry->id.segment
- && bus->number == entry->id.bus) {
+ if (segment == entry->id.segment && bus == entry->id.bus) {
list_del(&entry->list);
kfree(entry);
}
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index bce469c..ab781f0 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -454,6 +454,7 @@
acpi_handle handle;
struct acpi_device *child;
u32 flags, base_flags;
+ bool is_osc_granted = false;
root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
if (!root)
@@ -501,6 +502,20 @@
strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
device->driver_data = root;
+ printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n",
+ acpi_device_name(device), acpi_device_bid(device),
+ root->segment, &root->secondary);
+
+ /*
+ * PCI Routing Table
+ * -----------------
+ * Evaluate and parse _PRT, if exists.
+ */
+ status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
+ if (ACPI_SUCCESS(status))
+ result = acpi_pci_irq_add_prt(device->handle, root->segment,
+ root->secondary.start);
+
root->mcfg_addr = acpi_pci_root_get_mcfg_addr(device->handle);
/*
@@ -510,6 +525,60 @@
flags = base_flags = OSC_PCI_SEGMENT_GROUPS_SUPPORT;
acpi_pci_osc_support(root, flags);
+ /* Indicate support for various _OSC capabilities. */
+ if (pci_ext_cfg_avail())
+ flags |= OSC_EXT_PCI_CONFIG_SUPPORT;
+ if (pcie_aspm_support_enabled()) {
+ flags |= OSC_ACTIVE_STATE_PWR_SUPPORT |
+ OSC_CLOCK_PWR_CAPABILITY_SUPPORT;
+ }
+ if (pci_msi_enabled())
+ flags |= OSC_MSI_SUPPORT;
+ if (flags != base_flags) {
+ status = acpi_pci_osc_support(root, flags);
+ if (ACPI_FAILURE(status)) {
+ dev_info(&device->dev, "ACPI _OSC support "
+ "notification failed, disabling PCIe ASPM\n");
+ pcie_no_aspm();
+ flags = base_flags;
+ }
+ }
+ if (!pcie_ports_disabled
+ && (flags & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {
+ flags = OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL
+ | OSC_PCI_EXPRESS_NATIVE_HP_CONTROL
+ | OSC_PCI_EXPRESS_PME_CONTROL;
+
+ if (pci_aer_available()) {
+ if (aer_acpi_firmware_first())
+ dev_dbg(&device->dev,
+ "PCIe errors handled by BIOS.\n");
+ else
+ flags |= OSC_PCI_EXPRESS_AER_CONTROL;
+ }
+
+ dev_info(&device->dev,
+ "Requesting ACPI _OSC control (0x%02x)\n", flags);
+
+ status = acpi_pci_osc_control_set(device->handle, &flags,
+ OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
+ if (ACPI_SUCCESS(status)) {
+ is_osc_granted = true;
+ dev_info(&device->dev,
+ "ACPI _OSC control (0x%02x) granted\n", flags);
+ } else {
+ is_osc_granted = false;
+ dev_info(&device->dev,
+ "ACPI _OSC request failed (%s), "
+ "returned control mask: 0x%02x\n",
+ acpi_format_exception(status), flags);
+ }
+ } else {
+ dev_info(&device->dev,
+ "Unable to request _OSC control "
+ "(_OSC support mask: 0x%02x)\n", flags);
+ }
+
/*
* TBD: Need PCI interface for enumeration/configuration of roots.
*/
@@ -518,10 +587,6 @@
list_add_tail(&root->node, &acpi_pci_roots);
mutex_unlock(&acpi_pci_root_lock);
- printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n",
- acpi_device_name(device), acpi_device_bid(device),
- root->segment, &root->secondary);
-
/*
* Scan the Root Bridge
* --------------------
@@ -548,80 +613,19 @@
goto out_del_root;
/*
- * PCI Routing Table
- * -----------------
- * Evaluate and parse _PRT, if exists.
- */
- status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
- if (ACPI_SUCCESS(status))
- result = acpi_pci_irq_add_prt(device->handle, root->bus);
-
- /*
* Scan and bind all _ADR-Based Devices
*/
list_for_each_entry(child, &device->children, node)
acpi_pci_bridge_scan(child);
- /* Indicate support for various _OSC capabilities. */
- if (pci_ext_cfg_avail(root->bus->self))
- flags |= OSC_EXT_PCI_CONFIG_SUPPORT;
- if (pcie_aspm_support_enabled())
- flags |= OSC_ACTIVE_STATE_PWR_SUPPORT |
- OSC_CLOCK_PWR_CAPABILITY_SUPPORT;
- if (pci_msi_enabled())
- flags |= OSC_MSI_SUPPORT;
- if (flags != base_flags) {
- status = acpi_pci_osc_support(root, flags);
- if (ACPI_FAILURE(status)) {
- dev_info(root->bus->bridge, "ACPI _OSC support "
- "notification failed, disabling PCIe ASPM\n");
- pcie_no_aspm();
- flags = base_flags;
- }
- }
-
- if (!pcie_ports_disabled
- && (flags & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {
- flags = OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL
- | OSC_PCI_EXPRESS_NATIVE_HP_CONTROL
- | OSC_PCI_EXPRESS_PME_CONTROL;
-
- if (pci_aer_available()) {
- if (aer_acpi_firmware_first())
- dev_dbg(root->bus->bridge,
- "PCIe errors handled by BIOS.\n");
- else
- flags |= OSC_PCI_EXPRESS_AER_CONTROL;
- }
-
- dev_info(root->bus->bridge,
- "Requesting ACPI _OSC control (0x%02x)\n", flags);
-
- status = acpi_pci_osc_control_set(device->handle, &flags,
- OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
- if (ACPI_SUCCESS(status)) {
- dev_info(root->bus->bridge,
- "ACPI _OSC control (0x%02x) granted\n", flags);
- if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
- /*
- * We have ASPM control, but the FADT indicates
- * that it's unsupported. Clear it.
- */
- pcie_clear_aspm(root->bus);
- }
- } else {
- dev_info(root->bus->bridge,
- "ACPI _OSC request failed (%s), "
- "returned control mask: 0x%02x\n",
- acpi_format_exception(status), flags);
- pr_info("ACPI _OSC control for PCIe not granted, "
- "disabling ASPM\n");
- pcie_no_aspm();
- }
+ /* ASPM setting */
+ if (is_osc_granted) {
+ if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM)
+ pcie_clear_aspm(root->bus);
} else {
- dev_info(root->bus->bridge,
- "Unable to request _OSC control "
- "(_OSC support mask: 0x%02x)\n", flags);
+ pr_info("ACPI _OSC control for PCIe not granted, "
+ "disabling ASPM\n");
+ pcie_no_aspm();
}
pci_acpi_add_bus_pm_notifier(device, root->bus);
@@ -634,6 +638,8 @@
mutex_lock(&acpi_pci_root_lock);
list_del(&root->node);
mutex_unlock(&acpi_pci_root_lock);
+
+ acpi_pci_irq_del_prt(root->segment, root->secondary.start);
end:
kfree(root);
return result;
@@ -644,12 +650,19 @@
struct acpi_pci_root *root = acpi_driver_data(device);
struct acpi_pci_driver *driver;
+ if (system_state != SYSTEM_BOOTING)
+ pci_assign_unassigned_bus_resources(root->bus);
+
mutex_lock(&acpi_pci_root_lock);
list_for_each_entry(driver, &acpi_pci_drivers, node)
if (driver->add)
driver->add(root);
mutex_unlock(&acpi_pci_root_lock);
+ /* need to after hot-added ioapic is registered */
+ if (system_state != SYSTEM_BOOTING)
+ pci_enable_bridges(root->bus);
+
pci_bus_add_devices(root->bus);
return 0;
@@ -657,17 +670,29 @@
static int acpi_pci_root_remove(struct acpi_device *device, int type)
{
+ acpi_status status;
+ acpi_handle handle;
struct acpi_pci_root *root = acpi_driver_data(device);
struct acpi_pci_driver *driver;
+ pci_stop_root_bus(root->bus);
+
mutex_lock(&acpi_pci_root_lock);
- list_for_each_entry(driver, &acpi_pci_drivers, node)
+ list_for_each_entry_reverse(driver, &acpi_pci_drivers, node)
if (driver->remove)
driver->remove(root);
+ mutex_unlock(&acpi_pci_root_lock);
device_set_run_wake(root->bus->bridge, false);
pci_acpi_remove_bus_pm_notifier(device);
+ status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
+ if (ACPI_SUCCESS(status))
+ acpi_pci_irq_del_prt(root->segment, root->secondary.start);
+
+ pci_remove_root_bus(root->bus);
+
+ mutex_lock(&acpi_pci_root_lock);
list_del(&root->node);
mutex_unlock(&acpi_pci_root_lock);
kfree(root);
diff --git a/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c b/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
index aef45d3..3dee686 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/t3_hw.c
@@ -3307,7 +3307,7 @@
G_NUMFSTTRNSEQRX(t3_read_reg(adap, A_PCIE_MODE));
log2_width = fls(adap->params.pci.width) - 1;
acklat = ack_lat[log2_width][pldsize];
- if (val & 1) /* check LOsEnable */
+ if (val & PCI_EXP_LNKCTL_ASPM_L0S) /* check LOsEnable */
acklat += fst_trn_tx * 4;
rpllmt = rpl_tmr[log2_width][pldsize] + fst_trn_rx * 4;
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index f088f4b..71d8207 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -125,23 +125,23 @@
if ((ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) &&
(AR_SREV_9285(ah))) {
- /* Bluetooth coexistance requires disabling ASPM. */
+ /* Bluetooth coexistence requires disabling ASPM. */
pcie_capability_clear_word(pdev, PCI_EXP_LNKCTL,
- PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);
+ PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1);
/*
* Both upstream and downstream PCIe components should
* have the same ASPM settings.
*/
pcie_capability_clear_word(parent, PCI_EXP_LNKCTL,
- PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1);
+ PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1);
ath_info(common, "Disabling ASPM since BTCOEX is enabled\n");
return;
}
pcie_capability_read_word(parent, PCI_EXP_LNKCTL, &aspm);
- if (aspm & (PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1)) {
+ if (aspm & (PCI_EXP_LNKCTL_ASPM_L0S | PCI_EXP_LNKCTL_ASPM_L1)) {
ah->aspm_enabled = true;
/* Initialize PCIe PM and SERDES registers. */
ath9k_hw_configpcipowersave(ah, false);
diff --git a/drivers/net/wireless/iwlegacy/4965.h b/drivers/net/wireless/iwlegacy/4965.h
index 2d092f3..1b15b0b 100644
--- a/drivers/net/wireless/iwlegacy/4965.h
+++ b/drivers/net/wireless/iwlegacy/4965.h
@@ -917,10 +917,6 @@
/* PCI registers */
#define PCI_CFG_RETRY_TIMEOUT 0x041
-/* PCI register values */
-#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
-#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02
-
#define IL4965_DEFAULT_TX_RETRY 15
/* EEPROM */
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index 318ed3c..7e16d10 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -1183,9 +1183,10 @@
void
il_power_initialize(struct il_priv *il)
{
- u16 lctl = il_pcie_link_ctl(il);
+ u16 lctl;
- il->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
+ pcie_capability_read_word(il->pci_dev, PCI_EXP_LNKCTL, &lctl);
+ il->power_data.pci_pm = !(lctl & PCI_EXP_LNKCTL_ASPM_L0S);
il->power_data.debug_sleep_level_override = -1;
@@ -4233,9 +4234,8 @@
* power savings, even without L1.
*/
if (il->cfg->set_l0s) {
- lctl = il_pcie_link_ctl(il);
- if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
- PCI_CFG_LINK_CTRL_VAL_L1_EN) {
+ pcie_capability_read_word(il->pci_dev, PCI_EXP_LNKCTL, &lctl);
+ if (lctl & PCI_EXP_LNKCTL_ASPM_L1) {
/* L1-ASPM enabled; disable(!) L0S */
il_set_bit(il, CSR_GIO_REG,
CSR_GIO_REG_VAL_L0S_ENABLED);
diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h
index b4bb813..e181f3b 100644
--- a/drivers/net/wireless/iwlegacy/common.h
+++ b/drivers/net/wireless/iwlegacy/common.h
@@ -1829,14 +1829,6 @@
* PCI *
*****************************************************/
-static inline u16
-il_pcie_link_ctl(struct il_priv *il)
-{
- u16 pci_lnk_ctl;
- pcie_capability_read_word(il->pci_dev, PCI_EXP_LNKCTL, &pci_lnk_ctl);
- return pci_lnk_ctl;
-}
-
void il_bg_watchdog(unsigned long data);
u32 il_usecs_to_beacons(struct il_priv *il, u32 usec, u32 beacon_interval);
__le32 il_add_beacon_time(struct il_priv *il, u32 base, u32 addon,
@@ -2434,10 +2426,6 @@
/* PCI registers */
#define PCI_CFG_RETRY_TIMEOUT 0x041
-/* PCI register values */
-#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
-#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02
-
struct il_rate_info {
u8 plcp; /* uCode API: RATE_6M_PLCP, etc. */
u8 plcp_siso; /* uCode API: RATE_SISO_6M_PLCP, etc. */
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index fe0fffd..1dfa6be 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -670,21 +670,12 @@
/* PCI registers */
#define PCI_CFG_RETRY_TIMEOUT 0x041
-#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
-#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02
-
-static u16 iwl_pciexp_link_ctrl(struct iwl_trans *trans)
-{
- struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
- u16 pci_lnk_ctl;
-
- pcie_capability_read_word(trans_pcie->pci_dev, PCI_EXP_LNKCTL,
- &pci_lnk_ctl);
- return pci_lnk_ctl;
-}
static void iwl_apm_config(struct iwl_trans *trans)
{
+ struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
+ u16 lctl;
+
/*
* HW bug W/A for instability in PCIe bus L0S->L1 transition.
* Check if BIOS (or OS) enabled L1-ASPM on this device.
@@ -693,10 +684,9 @@
* If not (unlikely), enable L0S, so there is at least some
* power savings, even without L1.
*/
- u16 lctl = iwl_pciexp_link_ctrl(trans);
- if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
- PCI_CFG_LINK_CTRL_VAL_L1_EN) {
+ pcie_capability_read_word(trans_pcie->pci_dev, PCI_EXP_LNKCTL, &lctl);
+ if (lctl & PCI_EXP_LNKCTL_ASPM_L1) {
/* L1-ASPM enabled; disable(!) L0S */
iwl_set_bit(trans, CSR_GIO_REG, CSR_GIO_REG_VAL_L0S_ENABLED);
dev_printk(KERN_INFO, trans->dev,
@@ -707,7 +697,7 @@
dev_printk(KERN_INFO, trans->dev,
"L1 Disabled; Enabling L0S\n");
}
- trans->pm_support = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
+ trans->pm_support = !(lctl & PCI_EXP_LNKCTL_ASPM_L0S);
}
/*
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 6241fd0..ad6a8b6 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -170,6 +170,11 @@
int retval;
pci_fixup_device(pci_fixup_final, dev);
+
+ retval = pcibios_add_device(dev);
+ if (retval)
+ return retval;
+
retval = device_add(&dev->dev);
if (retval)
return retval;
@@ -320,10 +325,7 @@
} else
next = dev->bus_list.next;
- /* Run device routines with the device locked */
- device_lock(&dev->dev);
retval = cb(dev, userdata);
- device_unlock(&dev->dev);
if (retval)
break;
}
diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c
index 205af8d..22436f7 100644
--- a/drivers/pci/ioapic.c
+++ b/drivers/pci/ioapic.c
@@ -125,3 +125,5 @@
module_init(ioapic_init);
module_exit(ioapic_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index aeccc91..bafd2bb 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -106,7 +106,7 @@
virtfn->resource[i].name = pci_name(virtfn);
virtfn->resource[i].flags = res->flags;
size = resource_size(res);
- do_div(size, iov->total);
+ do_div(size, iov->total_VFs);
virtfn->resource[i].start = res->start + size * id;
virtfn->resource[i].end = virtfn->resource[i].start + size - 1;
rc = request_resource(res, &virtfn->resource[i]);
@@ -194,7 +194,7 @@
u16 status;
struct pci_sriov *iov = dev->sriov;
- if (!iov->nr_virtfn)
+ if (!iov->num_VFs)
return 0;
if (!(iov->cap & PCI_SRIOV_CAP_VFM))
@@ -216,7 +216,7 @@
u16 status;
struct pci_sriov *iov = container_of(work, struct pci_sriov, mtask);
- for (i = iov->initial; i < iov->nr_virtfn; i++) {
+ for (i = iov->initial_VFs; i < iov->num_VFs; i++) {
state = readb(iov->mstate + i);
if (state == PCI_SRIOV_VFM_MI) {
writeb(PCI_SRIOV_VFM_AV, iov->mstate + i);
@@ -244,7 +244,7 @@
resource_size_t pa;
struct pci_sriov *iov = dev->sriov;
- if (nr_virtfn <= iov->initial)
+ if (nr_virtfn <= iov->initial_VFs)
return 0;
pci_read_config_dword(dev, iov->pos + PCI_SRIOV_VFM, &table);
@@ -294,15 +294,15 @@
if (!nr_virtfn)
return 0;
- if (iov->nr_virtfn)
+ if (iov->num_VFs)
return -EINVAL;
pci_read_config_word(dev, iov->pos + PCI_SRIOV_INITIAL_VF, &initial);
- if (initial > iov->total ||
- (!(iov->cap & PCI_SRIOV_CAP_VFM) && (initial != iov->total)))
+ if (initial > iov->total_VFs ||
+ (!(iov->cap & PCI_SRIOV_CAP_VFM) && (initial != iov->total_VFs)))
return -EIO;
- if (nr_virtfn < 0 || nr_virtfn > iov->total ||
+ if (nr_virtfn < 0 || nr_virtfn > iov->total_VFs ||
(!(iov->cap & PCI_SRIOV_CAP_VFM) && (nr_virtfn > initial)))
return -EINVAL;
@@ -359,7 +359,7 @@
msleep(100);
pci_cfg_access_unlock(dev);
- iov->initial = initial;
+ iov->initial_VFs = initial;
if (nr_virtfn < initial)
initial = nr_virtfn;
@@ -376,7 +376,7 @@
}
kobject_uevent(&dev->dev.kobj, KOBJ_CHANGE);
- iov->nr_virtfn = nr_virtfn;
+ iov->num_VFs = nr_virtfn;
return 0;
@@ -401,13 +401,13 @@
int i;
struct pci_sriov *iov = dev->sriov;
- if (!iov->nr_virtfn)
+ if (!iov->num_VFs)
return;
if (iov->cap & PCI_SRIOV_CAP_VFM)
sriov_disable_migration(dev);
- for (i = 0; i < iov->nr_virtfn; i++)
+ for (i = 0; i < iov->num_VFs; i++)
virtfn_remove(dev, i, 0);
iov->ctrl &= ~(PCI_SRIOV_CTRL_VFE | PCI_SRIOV_CTRL_MSE);
@@ -419,7 +419,7 @@
if (iov->link != dev->devfn)
sysfs_remove_link(&dev->dev.kobj, "dep_link");
- iov->nr_virtfn = 0;
+ iov->num_VFs = 0;
}
static int sriov_init(struct pci_dev *dev, int pos)
@@ -496,7 +496,7 @@
iov->pos = pos;
iov->nres = nres;
iov->ctrl = ctrl;
- iov->total = total;
+ iov->total_VFs = total;
iov->offset = offset;
iov->stride = stride;
iov->pgsz = pgsz;
@@ -529,7 +529,7 @@
static void sriov_release(struct pci_dev *dev)
{
- BUG_ON(dev->sriov->nr_virtfn);
+ BUG_ON(dev->sriov->num_VFs);
if (dev != dev->sriov->dev)
pci_dev_put(dev->sriov->dev);
@@ -554,7 +554,7 @@
pci_update_resource(dev, i);
pci_write_config_dword(dev, iov->pos + PCI_SRIOV_SYS_PGSIZE, iov->pgsz);
- pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, iov->nr_virtfn);
+ pci_write_config_word(dev, iov->pos + PCI_SRIOV_NUM_VF, iov->num_VFs);
pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL, iov->ctrl);
if (iov->ctrl & PCI_SRIOV_CTRL_VFE)
msleep(100);
@@ -661,7 +661,7 @@
list_for_each_entry(dev, &bus->devices, bus_list) {
if (!dev->is_physfn)
continue;
- busnr = virtfn_bus(dev, dev->sriov->total - 1);
+ busnr = virtfn_bus(dev, dev->sriov->total_VFs - 1);
if (busnr > max)
max = busnr;
}
@@ -729,9 +729,56 @@
*/
int pci_num_vf(struct pci_dev *dev)
{
- if (!dev || !dev->is_physfn)
+ if (!dev->is_physfn)
return 0;
- else
- return dev->sriov->nr_virtfn;
+
+ return dev->sriov->num_VFs;
}
EXPORT_SYMBOL_GPL(pci_num_vf);
+
+/**
+ * pci_sriov_set_totalvfs -- reduce the TotalVFs available
+ * @dev: the PCI PF device
+ * numvfs: number that should be used for TotalVFs supported
+ *
+ * Should be called from PF driver's probe routine with
+ * device's mutex held.
+ *
+ * Returns 0 if PF is an SRIOV-capable device and
+ * value of numvfs valid. If not a PF with VFS, return -EINVAL;
+ * if VFs already enabled, return -EBUSY.
+ */
+int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs)
+{
+ if (!dev->is_physfn || (numvfs > dev->sriov->total_VFs))
+ return -EINVAL;
+
+ /* Shouldn't change if VFs already enabled */
+ if (dev->sriov->ctrl & PCI_SRIOV_CTRL_VFE)
+ return -EBUSY;
+ else
+ dev->sriov->driver_max_VFs = numvfs;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pci_sriov_set_totalvfs);
+
+/**
+ * pci_sriov_get_totalvfs -- get total VFs supported on this devic3
+ * @dev: the PCI PF device
+ *
+ * For a PCIe device with SRIOV support, return the PCIe
+ * SRIOV capability value of TotalVFs or the value of driver_max_VFs
+ * if the driver reduced it. Otherwise, -EINVAL.
+ */
+int pci_sriov_get_totalvfs(struct pci_dev *dev)
+{
+ if (!dev->is_physfn)
+ return -EINVAL;
+
+ if (dev->sriov->driver_max_VFs)
+ return dev->sriov->driver_max_VFs;
+
+ return dev->sriov->total_VFs;
+}
+EXPORT_SYMBOL_GPL(pci_sriov_get_totalvfs);
diff --git a/drivers/pci/irq.c b/drivers/pci/irq.c
index e5f69a4..b008cf8 100644
--- a/drivers/pci/irq.c
+++ b/drivers/pci/irq.c
@@ -14,11 +14,11 @@
{
struct pci_dev *parent = to_pci_dev(pdev->dev.parent);
- dev_printk(KERN_ERR, &pdev->dev,
- "Potentially misrouted IRQ (Bridge %s %04x:%04x)\n",
- dev_name(&parent->dev), parent->vendor, parent->device);
- dev_printk(KERN_ERR, &pdev->dev, "%s\n", reason);
- dev_printk(KERN_ERR, &pdev->dev, "Please report to linux-kernel@vger.kernel.org\n");
+ dev_err(&pdev->dev,
+ "Potentially misrouted IRQ (Bridge %s %04x:%04x)\n",
+ dev_name(&parent->dev), parent->vendor, parent->device);
+ dev_err(&pdev->dev, "%s\n", reason);
+ dev_err(&pdev->dev, "Please report to linux-kernel@vger.kernel.org\n");
WARN_ON(1);
}
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 94c6e2a..c3088e5 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -256,31 +256,26 @@
static long local_pci_probe(void *_ddi)
{
struct drv_dev_and_id *ddi = _ddi;
- struct device *dev = &ddi->dev->dev;
- struct device *parent = dev->parent;
+ struct pci_dev *pci_dev = ddi->dev;
+ struct pci_driver *pci_drv = ddi->drv;
+ struct device *dev = &pci_dev->dev;
int rc;
- /* The parent bridge must be in active state when probing */
- if (parent)
- pm_runtime_get_sync(parent);
- /* Unbound PCI devices are always set to disabled and suspended.
- * During probe, the device is set to enabled and active and the
- * usage count is incremented. If the driver supports runtime PM,
- * it should call pm_runtime_put_noidle() in its probe routine and
- * pm_runtime_get_noresume() in its remove routine.
+ /*
+ * Unbound PCI devices are always put in D0, regardless of
+ * runtime PM status. During probe, the device is set to
+ * active and the usage count is incremented. If the driver
+ * supports runtime PM, it should call pm_runtime_put_noidle()
+ * in its probe routine and pm_runtime_get_noresume() in its
+ * remove routine.
*/
- pm_runtime_get_noresume(dev);
- pm_runtime_set_active(dev);
- pm_runtime_enable(dev);
-
- rc = ddi->drv->probe(ddi->dev, ddi->id);
+ pm_runtime_get_sync(dev);
+ pci_dev->driver = pci_drv;
+ rc = pci_drv->probe(pci_dev, ddi->id);
if (rc) {
- pm_runtime_disable(dev);
- pm_runtime_set_suspended(dev);
- pm_runtime_put_noidle(dev);
+ pci_dev->driver = NULL;
+ pm_runtime_put_sync(dev);
}
- if (parent)
- pm_runtime_put(parent);
return rc;
}
@@ -330,10 +325,8 @@
id = pci_match_device(drv, pci_dev);
if (id)
error = pci_call_probe(drv, pci_dev, id);
- if (error >= 0) {
- pci_dev->driver = drv;
+ if (error >= 0)
error = 0;
- }
}
return error;
}
@@ -369,9 +362,7 @@
}
/* Undo the runtime PM settings in local_pci_probe() */
- pm_runtime_disable(dev);
- pm_runtime_set_suspended(dev);
- pm_runtime_put_noidle(dev);
+ pm_runtime_put_sync(dev);
/*
* If the device is still on, set the power state as "unknown",
@@ -398,6 +389,8 @@
struct pci_dev *pci_dev = to_pci_dev(dev);
struct pci_driver *drv = pci_dev->driver;
+ pm_runtime_resume(dev);
+
if (drv && drv->shutdown)
drv->shutdown(pci_dev);
pci_msi_shutdown(pci_dev);
@@ -408,16 +401,6 @@
* continue to do DMA
*/
pci_disable_device(pci_dev);
-
- /*
- * Devices may be enabled to wake up by runtime PM, but they need not
- * be supposed to wake up the system from its "power off" state (e.g.
- * ACPI S5). Therefore disable wakeup for all devices that aren't
- * supposed to wake up the system at this point. The state argument
- * will be ignored by pci_enable_wake().
- */
- if (!device_may_wakeup(dev))
- pci_enable_wake(pci_dev, PCI_UNKNOWN, false);
}
#ifdef CONFIG_PM
@@ -1002,6 +985,13 @@
pci_power_t prev = pci_dev->current_state;
int error;
+ /*
+ * If pci_dev->driver is not set (unbound), the device should
+ * always remain in D0 regardless of the runtime PM status
+ */
+ if (!pci_dev->driver)
+ return 0;
+
if (!pm || !pm->runtime_suspend)
return -ENOSYS;
@@ -1023,10 +1013,10 @@
return 0;
}
- if (!pci_dev->state_saved)
+ if (!pci_dev->state_saved) {
pci_save_state(pci_dev);
-
- pci_finish_runtime_suspend(pci_dev);
+ pci_finish_runtime_suspend(pci_dev);
+ }
return 0;
}
@@ -1037,6 +1027,13 @@
struct pci_dev *pci_dev = to_pci_dev(dev);
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+ /*
+ * If pci_dev->driver is not set (unbound), the device should
+ * always remain in D0 regardless of the runtime PM status
+ */
+ if (!pci_dev->driver)
+ return 0;
+
if (!pm || !pm->runtime_resume)
return -ENOSYS;
@@ -1054,8 +1051,16 @@
static int pci_pm_runtime_idle(struct device *dev)
{
+ struct pci_dev *pci_dev = to_pci_dev(dev);
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+ /*
+ * If pci_dev->driver is not set (unbound), the device should
+ * always remain in D0 regardless of the runtime PM status
+ */
+ if (!pci_dev->driver)
+ goto out;
+
if (!pm)
return -ENOSYS;
@@ -1065,8 +1070,8 @@
return ret;
}
+out:
pm_runtime_suspend(dev);
-
return 0;
}
diff --git a/drivers/pci/pci-stub.c b/drivers/pci/pci-stub.c
index 775e933..6e47c51 100644
--- a/drivers/pci/pci-stub.c
+++ b/drivers/pci/pci-stub.c
@@ -28,7 +28,7 @@
static int pci_stub_probe(struct pci_dev *dev, const struct pci_device_id *id)
{
- dev_printk(KERN_INFO, &dev->dev, "claimed by stub\n");
+ dev_info(&dev->dev, "claimed by stub\n");
return 0;
}
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 02d107b..5d883a1 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -404,6 +404,106 @@
}
#endif
+#ifdef CONFIG_PCI_IOV
+static ssize_t sriov_totalvfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pci_sriov_get_totalvfs(pdev));
+}
+
+
+static ssize_t sriov_numvfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ return sprintf(buf, "%u\n", pdev->sriov->num_VFs);
+}
+
+/*
+ * num_vfs > 0; number of vfs to enable
+ * num_vfs = 0; disable all vfs
+ *
+ * Note: SRIOV spec doesn't allow partial VF
+ * disable, so its all or none.
+ */
+static ssize_t sriov_numvfs_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ int num_vfs_enabled = 0;
+ int num_vfs;
+ int ret = 0;
+ u16 total;
+
+ if (kstrtoint(buf, 0, &num_vfs) < 0)
+ return -EINVAL;
+
+ /* is PF driver loaded w/callback */
+ if (!pdev->driver || !pdev->driver->sriov_configure) {
+ dev_info(&pdev->dev,
+ "Driver doesn't support SRIOV configuration via sysfs\n");
+ return -ENOSYS;
+ }
+
+ /* if enabling vf's ... */
+ total = pci_sriov_get_totalvfs(pdev);
+ /* Requested VFs to enable < totalvfs and none enabled already */
+ if ((num_vfs > 0) && (num_vfs <= total)) {
+ if (pdev->sriov->num_VFs == 0) {
+ num_vfs_enabled =
+ pdev->driver->sriov_configure(pdev, num_vfs);
+ if ((num_vfs_enabled >= 0) &&
+ (num_vfs_enabled != num_vfs)) {
+ dev_warn(&pdev->dev,
+ "Only %d VFs enabled\n",
+ num_vfs_enabled);
+ return count;
+ } else if (num_vfs_enabled < 0)
+ /* error code from driver callback */
+ return num_vfs_enabled;
+ } else if (num_vfs == pdev->sriov->num_VFs) {
+ dev_warn(&pdev->dev,
+ "%d VFs already enabled; no enable action taken\n",
+ num_vfs);
+ return count;
+ } else {
+ dev_warn(&pdev->dev,
+ "%d VFs already enabled. Disable before enabling %d VFs\n",
+ pdev->sriov->num_VFs, num_vfs);
+ return -EINVAL;
+ }
+ }
+
+ /* disable vfs */
+ if (num_vfs == 0) {
+ if (pdev->sriov->num_VFs != 0) {
+ ret = pdev->driver->sriov_configure(pdev, 0);
+ return ret ? ret : count;
+ } else {
+ dev_warn(&pdev->dev,
+ "All VFs disabled; no disable action taken\n");
+ return count;
+ }
+ }
+
+ dev_err(&pdev->dev,
+ "Invalid value for number of VFs to enable: %d\n", num_vfs);
+
+ return -EINVAL;
+}
+
+static struct device_attribute sriov_totalvfs_attr = __ATTR_RO(sriov_totalvfs);
+static struct device_attribute sriov_numvfs_attr =
+ __ATTR(sriov_numvfs, (S_IRUGO|S_IWUSR|S_IWGRP),
+ sriov_numvfs_show, sriov_numvfs_store);
+#endif /* CONFIG_PCI_IOV */
+
struct device_attribute pci_dev_attrs[] = {
__ATTR_RO(resource),
__ATTR_RO(vendor),
@@ -458,40 +558,6 @@
}
struct device_attribute vga_attr = __ATTR_RO(boot_vga);
-static void
-pci_config_pm_runtime_get(struct pci_dev *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device *parent = dev->parent;
-
- if (parent)
- pm_runtime_get_sync(parent);
- pm_runtime_get_noresume(dev);
- /*
- * pdev->current_state is set to PCI_D3cold during suspending,
- * so wait until suspending completes
- */
- pm_runtime_barrier(dev);
- /*
- * Only need to resume devices in D3cold, because config
- * registers are still accessible for devices suspended but
- * not in D3cold.
- */
- if (pdev->current_state == PCI_D3cold)
- pm_runtime_resume(dev);
-}
-
-static void
-pci_config_pm_runtime_put(struct pci_dev *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device *parent = dev->parent;
-
- pm_runtime_put(dev);
- if (parent)
- pm_runtime_put_sync(parent);
-}
-
static ssize_t
pci_read_config(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr,
@@ -1303,29 +1369,20 @@
pdev->rom_attr = attr;
}
- if ((pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA) {
- retval = device_create_file(&pdev->dev, &vga_attr);
- if (retval)
- goto err_rom_file;
- }
-
/* add platform-specific attributes */
retval = pcibios_add_platform_entries(pdev);
if (retval)
- goto err_vga_file;
+ goto err_rom_file;
/* add sysfs entries for various capabilities */
retval = pci_create_capabilities_sysfs(pdev);
if (retval)
- goto err_vga_file;
+ goto err_rom_file;
pci_create_firmware_label_files(pdev);
return 0;
-err_vga_file:
- if ((pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
- device_remove_file(&pdev->dev, &vga_attr);
err_rom_file:
if (rom_size) {
sysfs_remove_bin_file(&pdev->dev.kobj, pdev->rom_attr);
@@ -1411,3 +1468,62 @@
}
late_initcall(pci_sysfs_init);
+
+static struct attribute *pci_dev_dev_attrs[] = {
+ &vga_attr.attr,
+ NULL,
+};
+
+static umode_t pci_dev_attrs_are_visible(struct kobject *kobj,
+ struct attribute *a, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ if (a == &vga_attr.attr)
+ if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+ return 0;
+
+ return a->mode;
+}
+
+#ifdef CONFIG_PCI_IOV
+static struct attribute *sriov_dev_attrs[] = {
+ &sriov_totalvfs_attr.attr,
+ &sriov_numvfs_attr.attr,
+ NULL,
+};
+
+static umode_t sriov_attrs_are_visible(struct kobject *kobj,
+ struct attribute *a, int n)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+
+ if (!dev_is_pf(dev))
+ return 0;
+
+ return a->mode;
+}
+
+static struct attribute_group sriov_dev_attr_group = {
+ .attrs = sriov_dev_attrs,
+ .is_visible = sriov_attrs_are_visible,
+};
+#endif /* CONFIG_PCI_IOV */
+
+static struct attribute_group pci_dev_attr_group = {
+ .attrs = pci_dev_dev_attrs,
+ .is_visible = pci_dev_attrs_are_visible,
+};
+
+static const struct attribute_group *pci_dev_attr_groups[] = {
+ &pci_dev_attr_group,
+#ifdef CONFIG_PCI_IOV
+ &sriov_dev_attr_group,
+#endif
+ NULL,
+};
+
+struct device_type pci_dev_type = {
+ .groups = pci_dev_attr_groups,
+};
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 5485883..7c2e25e 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1333,6 +1333,19 @@
dr->pinned = 1;
}
+/*
+ * pcibios_add_device - provide arch specific hooks when adding device dev
+ * @dev: the PCI device being added
+ *
+ * Permits the platform to provide architecture specific functionality when
+ * devices are added. This is the default implementation. Architecture
+ * implementations can override this.
+ */
+int __weak pcibios_add_device (struct pci_dev *dev)
+{
+ return 0;
+}
+
/**
* pcibios_disable_device - disable arch specific PCI resources for device dev
* @dev: the PCI device to disable
@@ -1578,15 +1591,25 @@
pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, pmcsr);
- /* PCI (as opposed to PCIe) PME requires that the device have
- its PME# line hooked up correctly. Not all hardware vendors
- do this, so the PME never gets delivered and the device
- remains asleep. The easiest way around this is to
- periodically walk the list of suspended devices and check
- whether any have their PME flag set. The assumption is that
- we'll wake up often enough anyway that this won't be a huge
- hit, and the power savings from the devices will still be a
- win. */
+ /*
+ * PCI (as opposed to PCIe) PME requires that the device have
+ * its PME# line hooked up correctly. Not all hardware vendors
+ * do this, so the PME never gets delivered and the device
+ * remains asleep. The easiest way around this is to
+ * periodically walk the list of suspended devices and check
+ * whether any have their PME flag set. The assumption is that
+ * we'll wake up often enough anyway that this won't be a huge
+ * hit, and the power savings from the devices will still be a
+ * win.
+ *
+ * Although PCIe uses in-band PME message instead of PME# line
+ * to report PME, PME does not work for some PCIe devices in
+ * reality. For example, there are devices that set their PME
+ * status bits, but don't really bother to send a PME message;
+ * there are PCI Express Root Ports that don't bother to
+ * trigger interrupts when they receive PME messages from the
+ * devices below. So PME poll is used for PCIe devices too.
+ */
if (dev->pme_poll) {
struct pci_pme_device *pme_dev;
@@ -1858,6 +1881,38 @@
}
EXPORT_SYMBOL_GPL(pci_dev_run_wake);
+void pci_config_pm_runtime_get(struct pci_dev *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device *parent = dev->parent;
+
+ if (parent)
+ pm_runtime_get_sync(parent);
+ pm_runtime_get_noresume(dev);
+ /*
+ * pdev->current_state is set to PCI_D3cold during suspending,
+ * so wait until suspending completes
+ */
+ pm_runtime_barrier(dev);
+ /*
+ * Only need to resume devices in D3cold, because config
+ * registers are still accessible for devices suspended but
+ * not in D3cold.
+ */
+ if (pdev->current_state == PCI_D3cold)
+ pm_runtime_resume(dev);
+}
+
+void pci_config_pm_runtime_put(struct pci_dev *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device *parent = dev->parent;
+
+ pm_runtime_put(dev);
+ if (parent)
+ pm_runtime_put_sync(parent);
+}
+
/**
* pci_pm_init - Initialize PM functions of given PCI device
* @dev: PCI device to handle.
@@ -1868,6 +1923,8 @@
u16 pmc;
pm_runtime_forbid(&dev->dev);
+ pm_runtime_set_active(&dev->dev);
+ pm_runtime_enable(&dev->dev);
device_enable_async_suspend(&dev->dev);
dev->wakeup_prepared = false;
@@ -3833,14 +3890,13 @@
}
/**
- * pci_ext_cfg_enabled - can we access extended PCI config space?
- * @dev: The PCI device of the root bridge.
+ * pci_ext_cfg_avail - can we access extended PCI config space?
*
* Returns 1 if we can access PCI extended config space (offsets
* greater than 0xff). This is the default implementation. Architecture
* implementations can override this.
*/
-int __weak pci_ext_cfg_avail(struct pci_dev *dev)
+int __weak pci_ext_cfg_avail(void)
{
return 1;
}
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index bacbcba..11a713b 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -72,6 +72,8 @@
extern int pci_finish_runtime_suspend(struct pci_dev *dev);
extern int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
extern void pci_wakeup_bus(struct pci_bus *bus);
+extern void pci_config_pm_runtime_get(struct pci_dev *dev);
+extern void pci_config_pm_runtime_put(struct pci_dev *dev);
extern void pci_pm_init(struct pci_dev *dev);
extern void platform_pci_wakeup_init(struct pci_dev *dev);
extern void pci_allocate_cap_save_buffers(struct pci_dev *dev);
@@ -157,6 +159,7 @@
}
extern struct device_attribute pci_dev_attrs[];
extern struct device_attribute pcibus_dev_attrs[];
+extern struct device_type pci_dev_type;
#ifdef CONFIG_HOTPLUG
extern struct bus_attribute pci_bus_attrs[];
#else
@@ -232,13 +235,14 @@
int nres; /* number of resources */
u32 cap; /* SR-IOV Capabilities */
u16 ctrl; /* SR-IOV Control */
- u16 total; /* total VFs associated with the PF */
- u16 initial; /* initial VFs associated with the PF */
- u16 nr_virtfn; /* number of VFs available */
+ u16 total_VFs; /* total VFs associated with the PF */
+ u16 initial_VFs; /* initial VFs associated with the PF */
+ u16 num_VFs; /* number of VFs available */
u16 offset; /* first VF Routing ID offset */
u16 stride; /* following VF stride */
u32 pgsz; /* page size for BAR alignment */
u8 link; /* Function Dependency Link */
+ u16 driver_max_VFs; /* max num VFs driver supports */
struct pci_dev *dev; /* lowest numbered PF */
struct pci_dev *self; /* this PF */
struct mutex lock; /* lock for VF bus */
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index 94a7598..22f840f 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -87,6 +87,9 @@
static inline pci_ers_result_t merge_result(enum pci_ers_result orig,
enum pci_ers_result new)
{
+ if (new == PCI_ERS_RESULT_NO_AER_DRIVER)
+ return PCI_ERS_RESULT_NO_AER_DRIVER;
+
if (new == PCI_ERS_RESULT_NONE)
return orig;
@@ -97,7 +100,7 @@
break;
case PCI_ERS_RESULT_DISCONNECT:
if (new == PCI_ERS_RESULT_NEED_RESET)
- orig = new;
+ orig = PCI_ERS_RESULT_NEED_RESET;
break;
default:
break;
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 06bad96..421bbc5 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -213,6 +213,7 @@
struct aer_broadcast_data *result_data;
result_data = (struct aer_broadcast_data *) data;
+ device_lock(&dev->dev);
dev->error_state = result_data->state;
if (!dev->driver ||
@@ -231,12 +232,28 @@
dev->driver ?
"no AER-aware driver" : "no driver");
}
- return 0;
+
+ /*
+ * If there's any device in the subtree that does not
+ * have an error_detected callback, returning
+ * PCI_ERS_RESULT_NO_AER_DRIVER prevents calling of
+ * the subsequent mmio_enabled/slot_reset/resume
+ * callbacks of "any" device in the subtree. All the
+ * devices in the subtree are left in the error state
+ * without recovery.
+ */
+
+ if (!(dev->hdr_type & PCI_HEADER_TYPE_BRIDGE))
+ vote = PCI_ERS_RESULT_NO_AER_DRIVER;
+ else
+ vote = PCI_ERS_RESULT_NONE;
+ } else {
+ err_handler = dev->driver->err_handler;
+ vote = err_handler->error_detected(dev, result_data->state);
}
- err_handler = dev->driver->err_handler;
- vote = err_handler->error_detected(dev, result_data->state);
result_data->result = merge_result(result_data->result, vote);
+ device_unlock(&dev->dev);
return 0;
}
@@ -247,14 +264,17 @@
struct aer_broadcast_data *result_data;
result_data = (struct aer_broadcast_data *) data;
+ device_lock(&dev->dev);
if (!dev->driver ||
!dev->driver->err_handler ||
!dev->driver->err_handler->mmio_enabled)
- return 0;
+ goto out;
err_handler = dev->driver->err_handler;
vote = err_handler->mmio_enabled(dev);
result_data->result = merge_result(result_data->result, vote);
+out:
+ device_unlock(&dev->dev);
return 0;
}
@@ -265,14 +285,17 @@
struct aer_broadcast_data *result_data;
result_data = (struct aer_broadcast_data *) data;
+ device_lock(&dev->dev);
if (!dev->driver ||
!dev->driver->err_handler ||
!dev->driver->err_handler->slot_reset)
- return 0;
+ goto out;
err_handler = dev->driver->err_handler;
vote = err_handler->slot_reset(dev);
result_data->result = merge_result(result_data->result, vote);
+out:
+ device_unlock(&dev->dev);
return 0;
}
@@ -280,15 +303,18 @@
{
const struct pci_error_handlers *err_handler;
+ device_lock(&dev->dev);
dev->error_state = pci_channel_io_normal;
if (!dev->driver ||
!dev->driver->err_handler ||
!dev->driver->err_handler->resume)
- return 0;
+ goto out;
err_handler = dev->driver->err_handler;
err_handler->resume(dev);
+out:
+ device_unlock(&dev->dev);
return 0;
}
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 213753b..b52630b 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -242,8 +242,7 @@
return;
/* Training failed. Restore common clock configurations */
- dev_printk(KERN_ERR, &parent->dev,
- "ASPM: Could not configure common clock\n");
+ dev_err(&parent->dev, "ASPM: Could not configure common clock\n");
list_for_each_entry(child, &linkbus->devices, bus_list)
pcie_capability_write_word(child, PCI_EXP_LNKCTL,
child_reg[PCI_FUNC(child->devfn)]);
@@ -427,7 +426,8 @@
static void pcie_config_aspm_dev(struct pci_dev *pdev, u32 val)
{
- pcie_capability_clear_and_set_word(pdev, PCI_EXP_LNKCTL, 0x3, val);
+ pcie_capability_clear_and_set_word(pdev, PCI_EXP_LNKCTL,
+ PCI_EXP_LNKCTL_ASPMC, val);
}
static void pcie_config_aspm_link(struct pcie_link_state *link, u32 state)
@@ -442,12 +442,12 @@
return;
/* Convert ASPM state to upstream/downstream ASPM register state */
if (state & ASPM_STATE_L0S_UP)
- dwstream |= PCIE_LINK_STATE_L0S;
+ dwstream |= PCI_EXP_LNKCTL_ASPM_L0S;
if (state & ASPM_STATE_L0S_DW)
- upstream |= PCIE_LINK_STATE_L0S;
+ upstream |= PCI_EXP_LNKCTL_ASPM_L0S;
if (state & ASPM_STATE_L1) {
- upstream |= PCIE_LINK_STATE_L1;
- dwstream |= PCIE_LINK_STATE_L1;
+ upstream |= PCI_EXP_LNKCTL_ASPM_L1;
+ dwstream |= PCI_EXP_LNKCTL_ASPM_L1;
}
/*
* Spec 2.0 suggests all functions should be configured the
@@ -507,9 +507,7 @@
*/
pcie_capability_read_dword(child, PCI_EXP_DEVCAP, ®32);
if (!(reg32 & PCI_EXP_DEVCAP_RBER) && !aspm_force) {
- dev_printk(KERN_INFO, &child->dev, "disabling ASPM"
- " on pre-1.1 PCIe device. You can enable it"
- " with 'pcie_aspm=force'\n");
+ dev_info(&child->dev, "disabling ASPM on pre-1.1 PCIe device. You can enable it with 'pcie_aspm=force'\n");
return -EINVAL;
}
}
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index d03a7a3..b42133a 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -120,8 +120,7 @@
* the value in this field indicates which MSI-X Table entry is
* used to generate the interrupt message."
*/
- pos = pci_pcie_cap(dev);
- pci_read_config_word(dev, pos + PCI_EXP_FLAGS, ®16);
+ pcie_capability_read_word(dev, PCI_EXP_FLAGS, ®16);
entry = (reg16 & PCI_EXP_FLAGS_IRQ) >> 9;
if (entry >= nr_entries)
goto Error;
@@ -272,7 +271,8 @@
}
/* Hot-Plug Capable */
- if (cap_mask & PCIE_PORT_SERVICE_HP) {
+ if ((cap_mask & PCIE_PORT_SERVICE_HP) &&
+ dev->pcie_flags_reg & PCI_EXP_FLAGS_SLOT) {
pcie_capability_read_dword(dev, PCI_EXP_SLTCAP, ®32);
if (reg32 & PCI_EXP_SLTCAP_HPC) {
services |= PCIE_PORT_SERVICE_HP;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index ec909af..d46ef2d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -521,7 +521,7 @@
void pcie_update_link_speed(struct pci_bus *bus, u16 linksta)
{
- bus->cur_bus_speed = pcie_link_speed[linksta & 0xf];
+ bus->cur_bus_speed = pcie_link_speed[linksta & PCI_EXP_LNKSTA_CLS];
}
EXPORT_SYMBOL_GPL(pcie_update_link_speed);
@@ -579,14 +579,16 @@
if (pos) {
u16 status;
enum pci_bus_speed max;
- pci_read_config_word(bridge, pos + 2, &status);
- if (status & 0x8000) {
+ pci_read_config_word(bridge, pos + PCI_X_BRIDGE_SSTATUS,
+ &status);
+
+ if (status & PCI_X_SSTATUS_533MHZ) {
max = PCI_SPEED_133MHz_PCIX_533;
- } else if (status & 0x4000) {
+ } else if (status & PCI_X_SSTATUS_266MHZ) {
max = PCI_SPEED_133MHz_PCIX_266;
- } else if (status & 0x0002) {
- if (((status >> 12) & 0x3) == 2) {
+ } else if (status & PCI_X_SSTATUS_133MHZ) {
+ if ((status & PCI_X_SSTATUS_VERS) == PCI_X_SSTATUS_V2) {
max = PCI_SPEED_133MHz_PCIX_ECC;
} else {
max = PCI_SPEED_133MHz_PCIX;
@@ -596,7 +598,8 @@
}
bus->max_bus_speed = max;
- bus->cur_bus_speed = pcix_bus_speed[(status >> 6) & 0xf];
+ bus->cur_bus_speed = pcix_bus_speed[
+ (status & PCI_X_SSTATUS_FREQ) >> 6];
return;
}
@@ -607,7 +610,7 @@
u16 linksta;
pcie_capability_read_dword(bridge, PCI_EXP_LNKCAP, &linkcap);
- bus->max_bus_speed = pcie_link_speed[linkcap & 0xf];
+ bus->max_bus_speed = pcie_link_speed[linkcap & PCI_EXP_LNKCAP_SLS];
pcie_capability_read_word(bridge, PCI_EXP_LNKSTA, &linksta);
pcie_update_link_speed(bus, linksta);
@@ -975,6 +978,7 @@
dev->sysdata = dev->bus->sysdata;
dev->dev.parent = dev->bus->bridge;
dev->dev.bus = &pci_bus_type;
+ dev->dev.type = &pci_dev_type;
dev->hdr_type = hdr_type & 0x7f;
dev->multifunction = !!(hdr_type & 0x80);
dev->error_state = pci_channel_io_normal;
@@ -1890,6 +1894,28 @@
return max;
}
+/**
+ * pci_rescan_bus - scan a PCI bus for devices.
+ * @bus: PCI bus to scan
+ *
+ * Scan a PCI bus and child buses for new devices, adds them,
+ * and enables them.
+ *
+ * Returns the max number of subordinate bus discovered.
+ */
+unsigned int __ref pci_rescan_bus(struct pci_bus *bus)
+{
+ unsigned int max;
+
+ max = pci_scan_child_bus(bus);
+ pci_assign_unassigned_bus_resources(bus);
+ pci_enable_bridges(bus);
+ pci_bus_add_devices(bus);
+
+ return max;
+}
+EXPORT_SYMBOL_GPL(pci_rescan_bus);
+
EXPORT_SYMBOL(pci_add_new_bus);
EXPORT_SYMBOL(pci_scan_slot);
EXPORT_SYMBOL(pci_scan_bridge);
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index eb907a8f..9b8505c 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -76,6 +76,8 @@
if (!access_ok(VERIFY_WRITE, buf, cnt))
return -EINVAL;
+ pci_config_pm_runtime_get(dev);
+
if ((pos & 1) && cnt) {
unsigned char val;
pci_user_read_config_byte(dev, pos, &val);
@@ -121,6 +123,8 @@
cnt--;
}
+ pci_config_pm_runtime_put(dev);
+
*ppos = pos;
return nbytes;
}
@@ -146,6 +150,8 @@
if (!access_ok(VERIFY_READ, buf, cnt))
return -EINVAL;
+ pci_config_pm_runtime_get(dev);
+
if ((pos & 1) && cnt) {
unsigned char val;
__get_user(val, buf);
@@ -191,6 +197,8 @@
cnt--;
}
+ pci_config_pm_runtime_put(dev);
+
*ppos = pos;
i_size_write(ino, dp->size);
return nbytes;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 7a451ff..0c59f7a 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1790,6 +1790,45 @@
PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE,
quirk_tc86c001_ide);
+/*
+ * PLX PCI 9050 PCI Target bridge controller has an errata that prevents the
+ * local configuration registers accessible via BAR0 (memory) or BAR1 (i/o)
+ * being read correctly if bit 7 of the base address is set.
+ * The BAR0 or BAR1 region may be disabled (size 0) or enabled (size 128).
+ * Re-allocate the regions to a 256-byte boundary if necessary.
+ */
+static void __devinit quirk_plx_pci9050(struct pci_dev *dev)
+{
+ unsigned int bar;
+
+ /* Fixed in revision 2 (PCI 9052). */
+ if (dev->revision >= 2)
+ return;
+ for (bar = 0; bar <= 1; bar++)
+ if (pci_resource_len(dev, bar) == 0x80 &&
+ (pci_resource_start(dev, bar) & 0x80)) {
+ struct resource *r = &dev->resource[bar];
+ dev_info(&dev->dev,
+ "Re-allocating PLX PCI 9050 BAR %u to length 256 to avoid bit 7 bug\n",
+ bar);
+ r->start = 0;
+ r->end = 0xff;
+ }
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+ quirk_plx_pci9050);
+/*
+ * The following Meilhaus (vendor ID 0x1402) device IDs (amongst others)
+ * may be using the PLX PCI 9050: 0x0630, 0x0940, 0x0950, 0x0960, 0x100b,
+ * 0x1400, 0x140a, 0x140b, 0x14e0, 0x14ea, 0x14eb, 0x1604, 0x1608, 0x160c,
+ * 0x168f, 0x2000, 0x2600, 0x3000, 0x810a, 0x810b.
+ *
+ * Currently, device IDs 0x2000 and 0x2600 are used by the Comedi "me_daq"
+ * driver.
+ */
+DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2000, quirk_plx_pci9050);
+DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2600, quirk_plx_pci9050);
+
static void __devinit quirk_netmos(struct pci_dev *dev)
{
unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index 513972f..7c0fd92 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -111,3 +111,39 @@
pci_remove_bus_device(dev);
}
EXPORT_SYMBOL(pci_stop_and_remove_bus_device);
+
+void pci_stop_root_bus(struct pci_bus *bus)
+{
+ struct pci_dev *child, *tmp;
+ struct pci_host_bridge *host_bridge;
+
+ if (!pci_is_root_bus(bus))
+ return;
+
+ host_bridge = to_pci_host_bridge(bus->bridge);
+ list_for_each_entry_safe_reverse(child, tmp,
+ &bus->devices, bus_list)
+ pci_stop_bus_device(child);
+
+ /* stop the host bridge */
+ device_del(&host_bridge->dev);
+}
+
+void pci_remove_root_bus(struct pci_bus *bus)
+{
+ struct pci_dev *child, *tmp;
+ struct pci_host_bridge *host_bridge;
+
+ if (!pci_is_root_bus(bus))
+ return;
+
+ host_bridge = to_pci_host_bridge(bus->bridge);
+ list_for_each_entry_safe(child, tmp,
+ &bus->devices, bus_list)
+ pci_remove_bus_device(child);
+ pci_remove_bus(bus);
+ host_bridge->bus = NULL;
+
+ /* remove the host bridge */
+ put_device(&host_bridge->dev);
+}
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index 0b3037a..3a3828f 100644
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -118,11 +118,17 @@
void __iomem *rom;
/*
+ * Some devices may provide ROMs via a source other than the BAR
+ */
+ if (pdev->rom && pdev->romlen) {
+ *size = pdev->romlen;
+ return phys_to_virt((phys_addr_t)pdev->rom);
+ /*
* IORESOURCE_ROM_SHADOW set on x86, x86_64 and IA64 supports legacy
* memory map if the VGA enable bit of the Bridge Control register is
* set for embedded VGA.
*/
- if (res->flags & IORESOURCE_ROM_SHADOW) {
+ } else if (res->flags & IORESOURCE_ROM_SHADOW) {
/* primary video rom always starts here */
start = (loff_t)0xC0000;
*size = 0x20000; /* cover C000:0 through E000:0 */
@@ -181,7 +187,8 @@
if (res->flags & (IORESOURCE_ROM_COPY | IORESOURCE_ROM_BIOS_COPY))
return;
- iounmap(rom);
+ if (!pdev->rom || !pdev->romlen)
+ iounmap(rom);
/* Disable again before continuing, leave enabled if pci=rom */
if (!(res->flags & (IORESOURCE_ROM_ENABLE | IORESOURCE_ROM_SHADOW)))
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 1e808ca..6d3591d 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -1550,25 +1550,12 @@
}
EXPORT_SYMBOL_GPL(pci_assign_unassigned_bridge_resources);
-#ifdef CONFIG_HOTPLUG
-/**
- * pci_rescan_bus - scan a PCI bus for devices.
- * @bus: PCI bus to scan
- *
- * Scan a PCI bus and child buses for new devices, adds them,
- * and enables them.
- *
- * Returns the max number of subordinate bus discovered.
- */
-unsigned int __ref pci_rescan_bus(struct pci_bus *bus)
+void pci_assign_unassigned_bus_resources(struct pci_bus *bus)
{
- unsigned int max;
struct pci_dev *dev;
LIST_HEAD(add_list); /* list of resources that
want additional resources */
- max = pci_scan_child_bus(bus);
-
down_read(&pci_bus_sem);
list_for_each_entry(dev, &bus->devices, bus_list)
if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
@@ -1579,11 +1566,4 @@
up_read(&pci_bus_sem);
__pci_bus_assign_resources(bus, &add_list, NULL);
BUG_ON(!list_empty(&add_list));
-
- pci_enable_bridges(bus);
- pci_bus_add_devices(bus);
-
- return max;
}
-EXPORT_SYMBOL_GPL(pci_rescan_bus);
-#endif
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 0aab85a..a0c7312 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -1068,13 +1068,16 @@
case XenbusStateInitialising:
case XenbusStateInitWait:
case XenbusStateInitialised:
- case XenbusStateClosed:
break;
case XenbusStateConnected:
pcifront_try_connect(pdev);
break;
+ case XenbusStateClosed:
+ if (xdev->state == XenbusStateClosed)
+ break;
+ /* Missed the backend's CLOSING state -- fallthrough */
case XenbusStateClosing:
dev_warn(&xdev->dev, "backend going away!\n");
pcifront_try_disconnect(pdev);
diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index bb145e4..8b1d7a6 100644
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -92,8 +92,8 @@
/* ACPI PCI Interrupt Routing (pci_irq.c) */
-int acpi_pci_irq_add_prt(acpi_handle handle, struct pci_bus *bus);
-void acpi_pci_irq_del_prt(struct pci_bus *bus);
+int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus);
+void acpi_pci_irq_del_prt(int segment, int bus);
/* ACPI PCI Device Binding (pci_bind.c) */
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 8670eb1..8eb1be1 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -196,6 +196,77 @@
void *create_event_ex;
} efi_boot_services_t;
+typedef enum {
+ EfiPciIoWidthUint8,
+ EfiPciIoWidthUint16,
+ EfiPciIoWidthUint32,
+ EfiPciIoWidthUint64,
+ EfiPciIoWidthFifoUint8,
+ EfiPciIoWidthFifoUint16,
+ EfiPciIoWidthFifoUint32,
+ EfiPciIoWidthFifoUint64,
+ EfiPciIoWidthFillUint8,
+ EfiPciIoWidthFillUint16,
+ EfiPciIoWidthFillUint32,
+ EfiPciIoWidthFillUint64,
+ EfiPciIoWidthMaximum
+} EFI_PCI_IO_PROTOCOL_WIDTH;
+
+typedef enum {
+ EfiPciIoAttributeOperationGet,
+ EfiPciIoAttributeOperationSet,
+ EfiPciIoAttributeOperationEnable,
+ EfiPciIoAttributeOperationDisable,
+ EfiPciIoAttributeOperationSupported,
+ EfiPciIoAttributeOperationMaximum
+} EFI_PCI_IO_PROTOCOL_ATTRIBUTE_OPERATION;
+
+
+typedef struct {
+ void *read;
+ void *write;
+} efi_pci_io_protocol_access_t;
+
+typedef struct {
+ void *poll_mem;
+ void *poll_io;
+ efi_pci_io_protocol_access_t mem;
+ efi_pci_io_protocol_access_t io;
+ efi_pci_io_protocol_access_t pci;
+ void *copy_mem;
+ void *map;
+ void *unmap;
+ void *allocate_buffer;
+ void *free_buffer;
+ void *flush;
+ void *get_location;
+ void *attributes;
+ void *get_bar_attributes;
+ void *set_bar_attributes;
+ uint64_t romsize;
+ void *romimage;
+} efi_pci_io_protocol;
+
+#define EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO 0x0001
+#define EFI_PCI_IO_ATTRIBUTE_ISA_IO 0x0002
+#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO 0x0004
+#define EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY 0x0008
+#define EFI_PCI_IO_ATTRIBUTE_VGA_IO 0x0010
+#define EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO 0x0020
+#define EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO 0x0040
+#define EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x0080
+#define EFI_PCI_IO_ATTRIBUTE_IO 0x0100
+#define EFI_PCI_IO_ATTRIBUTE_MEMORY 0x0200
+#define EFI_PCI_IO_ATTRIBUTE_BUS_MASTER 0x0400
+#define EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED 0x0800
+#define EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000
+#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE 0x2000
+#define EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM 0x4000
+#define EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE 0x8000
+#define EFI_PCI_IO_ATTRIBUTE_ISA_IO_16 0x10000
+#define EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16 0x20000
+#define EFI_PCI_IO_ATTRIBUTE_VGA_IO_16 0x40000
+
/*
* Types and defines for EFI ResetSystem
*/
diff --git a/include/linux/pci.h b/include/linux/pci.h
index ee21795..ea41a0a 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -333,6 +333,8 @@
};
struct pci_ats *ats; /* Address Translation Service */
#endif
+ void *rom; /* Physical pointer to ROM if it's not from the BAR */
+ size_t romlen; /* Length of ROM if it's not from the BAR */
};
static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
@@ -538,6 +540,9 @@
/* Device driver is fully recovered and operational */
PCI_ERS_RESULT_RECOVERED = (__force pci_ers_result_t) 5,
+
+ /* No AER capabilities registered for the driver */
+ PCI_ERS_RESULT_NO_AER_DRIVER = (__force pci_ers_result_t) 6,
};
/* PCI bus error event callbacks */
@@ -573,6 +578,7 @@
int (*resume_early) (struct pci_dev *dev);
int (*resume) (struct pci_dev *dev); /* Device woken up */
void (*shutdown) (struct pci_dev *dev);
+ int (*sriov_configure) (struct pci_dev *dev, int num_vfs); /* PF pdev */
const struct pci_error_handlers *err_handler;
struct device_driver driver;
struct pci_dynids dynids;
@@ -712,6 +718,8 @@
extern void pci_dev_put(struct pci_dev *dev);
extern void pci_remove_bus(struct pci_bus *b);
extern void pci_stop_and_remove_bus_device(struct pci_dev *dev);
+void pci_stop_root_bus(struct pci_bus *bus);
+void pci_remove_root_bus(struct pci_bus *bus);
void pci_setup_cardbus(struct pci_bus *bus);
extern void pci_sort_breadthfirst(void);
#define dev_is_pci(d) ((d)->bus == &pci_bus_type)
@@ -958,6 +966,7 @@
int pci_claim_resource(struct pci_dev *, int);
void pci_assign_unassigned_resources(void);
void pci_assign_unassigned_bridge_resources(struct pci_dev *bridge);
+void pci_assign_unassigned_bus_resources(struct pci_bus *bus);
void pdev_enable_device(struct pci_dev *);
int pci_enable_resources(struct pci_dev *, int mask);
void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *),
@@ -1592,6 +1601,7 @@
void pcibios_set_master(struct pci_dev *dev);
int pcibios_set_pcie_reset_state(struct pci_dev *dev,
enum pcie_reset_state state);
+int pcibios_add_device(struct pci_dev *dev);
#ifdef CONFIG_PCI_MMCONFIG
extern void __init pci_mmcfg_early_init(void);
@@ -1601,7 +1611,7 @@
static inline void pci_mmcfg_late_init(void) { }
#endif
-int pci_ext_cfg_avail(struct pci_dev *dev);
+int pci_ext_cfg_avail(void);
void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar);
@@ -1610,6 +1620,8 @@
extern void pci_disable_sriov(struct pci_dev *dev);
extern irqreturn_t pci_sriov_migration(struct pci_dev *dev);
extern int pci_num_vf(struct pci_dev *dev);
+extern int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs);
+extern int pci_sriov_get_totalvfs(struct pci_dev *dev);
#else
static inline int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn)
{
@@ -1626,6 +1638,14 @@
{
return 0;
}
+static inline int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs)
+{
+ return 0;
+}
+static inline int pci_sriov_get_totalvfs(struct pci_dev *dev)
+{
+ return 0;
+}
#endif
#if defined(CONFIG_HOTPLUG_PCI) || defined(CONFIG_HOTPLUG_PCI_MODULE)
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index 20ae747..6b7b6f1 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -349,7 +349,7 @@
#define PCI_AF_STATUS_TP 0x01
#define PCI_CAP_AF_SIZEOF 6 /* size of AF registers */
-/* PCI-X registers */
+/* PCI-X registers (Type 0 (non-bridge) devices) */
#define PCI_X_CMD 2 /* Modes & Features */
#define PCI_X_CMD_DPERR_E 0x0001 /* Data Parity Error Recovery Enable */
@@ -389,6 +389,19 @@
#define PCI_CAP_PCIX_SIZEOF_V1 24 /* size for Version 1 */
#define PCI_CAP_PCIX_SIZEOF_V2 PCI_CAP_PCIX_SIZEOF_V1 /* Same for v2 */
+/* PCI-X registers (Type 1 (bridge) devices) */
+
+#define PCI_X_BRIDGE_SSTATUS 2 /* Secondary Status */
+#define PCI_X_SSTATUS_64BIT 0x0001 /* Secondary AD interface is 64 bits */
+#define PCI_X_SSTATUS_133MHZ 0x0002 /* 133 MHz capable */
+#define PCI_X_SSTATUS_FREQ 0x03c0 /* Secondary Bus Mode and Frequency */
+#define PCI_X_SSTATUS_VERS 0x3000 /* PCI-X Capability Version */
+#define PCI_X_SSTATUS_V1 0x1000 /* Mode 2, not Mode 1 */
+#define PCI_X_SSTATUS_V2 0x2000 /* Mode 1 or Modes 1 and 2 */
+#define PCI_X_SSTATUS_266MHZ 0x4000 /* 266 MHz capable */
+#define PCI_X_SSTATUS_533MHZ 0x8000 /* 533 MHz capable */
+#define PCI_X_BRIDGE_STATUS 4 /* Bridge Status */
+
/* PCI Bridge Subsystem ID registers */
#define PCI_SSVID_VENDOR_ID 4 /* PCI-Bridge subsystem vendor id register */
@@ -456,6 +469,8 @@
#define PCI_EXP_LNKCAP_PN 0xff000000 /* Port Number */
#define PCI_EXP_LNKCTL 16 /* Link Control */
#define PCI_EXP_LNKCTL_ASPMC 0x0003 /* ASPM Control */
+#define PCI_EXP_LNKCTL_ASPM_L0S 0x01 /* L0s Enable */
+#define PCI_EXP_LNKCTL_ASPM_L1 0x02 /* L1 Enable */
#define PCI_EXP_LNKCTL_RCB 0x0008 /* Read Completion Boundary */
#define PCI_EXP_LNKCTL_LD 0x0010 /* Link Disable */
#define PCI_EXP_LNKCTL_RL 0x0020 /* Retrain Link */
@@ -544,9 +559,9 @@
#define PCI_EXP_OBFF_WAKE_EN 0x6000 /* OBFF using WAKE# signaling */
#define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 44 /* v2 endpoints end here */
#define PCI_EXP_LNKCAP2 44 /* Link Capability 2 */
-#define PCI_EXP_LNKCAP2_SLS_2_5GB 0x01 /* Current Link Speed 2.5GT/s */
-#define PCI_EXP_LNKCAP2_SLS_5_0GB 0x02 /* Current Link Speed 5.0GT/s */
-#define PCI_EXP_LNKCAP2_SLS_8_0GB 0x04 /* Current Link Speed 8.0GT/s */
+#define PCI_EXP_LNKCAP2_SLS_2_5GB 0x02 /* Supported Link Speed 2.5GT/s */
+#define PCI_EXP_LNKCAP2_SLS_5_0GB 0x04 /* Supported Link Speed 5.0GT/s */
+#define PCI_EXP_LNKCAP2_SLS_8_0GB 0x08 /* Supported 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 */