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Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

Browse source 
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (109 commits)
  PCI: fix coding style issue in pci_save_state()
  PCI: add pci_request_acs
  PCI: fix BUG_ON triggered by logical PCIe root port removal
  PCI: remove ifdefed pci_cleanup_aer_correct_error_status
  PCI: unconditionally clear AER uncorr status register during cleanup
  x86/PCI: claim SR-IOV BARs in pcibios_allocate_resource
  PCI: portdrv: remove redundant definitions
  PCI: portdrv: remove unnecessary struct pcie_port_data
  PCI: portdrv: minor cleanup for pcie_port_device_register
  PCI: portdrv: add missing irq cleanup
  PCI: portdrv: enable device before irq initialization
  PCI: portdrv: cleanup service irqs initialization
  PCI: portdrv: check capabilities first
  PCI: portdrv: move PME capability check
  PCI: portdrv: remove redundant pcie type calculation
  PCI: portdrv: cleanup pcie_device registration
  PCI: portdrv: remove redundant pcie_port_device_probe
  PCI: Always set prefetchable base/limit upper32 registers
  PCI: read-modify-write the pcie device control register when initiating pcie flr
  PCI: show dma_mask bits in /sys
  ...

Fixed up conflicts in:
	arch/x86/kernel/amd_iommu_init.c
	drivers/pci/dmar.c
	drivers/pci/hotplug/acpiphp_glue.c
This commit is contained in:
Linus Torvalds 2009-12-11 12:18:16 -08:00
commit 11bd04f6f3
83 changed files with 1794 additions and 1571 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
arch/ia64/include/asm/xen/hypervisor.h
View file

@ -37,35 +37,9 @@
#include <xen/interface/xen.h>
#include <xen/interface/version.h> /* to compile feature.c */
#include <xen/features.h> /* to comiple xen-netfront.c */
#include <xen/xen.h>
#include <asm/xen/hypercall.h>
/* xen_domain_type is set before executing any C code by early_xen_setup */
enum xen_domain_type {
XEN_NATIVE, /* running on bare hardware */
XEN_PV_DOMAIN, /* running in a PV domain */
XEN_HVM_DOMAIN, /* running in a Xen hvm domain*/
};
#ifdef CONFIG_XEN
extern enum xen_domain_type xen_domain_type;
#else
#define xen_domain_type XEN_NATIVE
#endif
#define xen_domain() (xen_domain_type != XEN_NATIVE)
#define xen_pv_domain() (xen_domain() && \
xen_domain_type == XEN_PV_DOMAIN)
#define xen_hvm_domain() (xen_domain() && \
xen_domain_type == XEN_HVM_DOMAIN)
#ifdef CONFIG_XEN_DOM0
#define xen_initial_domain() (xen_pv_domain() && \
(xen_start_info->flags & SIF_INITDOMAIN))
#else
#define xen_initial_domain() (0)
#endif
#ifdef CONFIG_XEN
extern struct shared_info *HYPERVISOR_shared_info;
extern struct start_info *xen_start_info;

33
arch/ia64/pci/pci.c
View file

@ -131,6 +131,7 @@ alloc_pci_controller (int seg)
}
struct pci_root_info {
struct acpi_device *bridge;
struct pci_controller *controller;
char *name;
};
@ -297,9 +298,20 @@ static __devinit acpi_status add_window(struct acpi_resource *res, void *data)
window->offset = offset;
if (insert_resource(root, &window->resource)) {
printk(KERN_ERR "alloc 0x%llx-0x%llx from %s for %s failed\n",
window->resource.start, window->resource.end,
root->name, info->name);
dev_err(&info->bridge->dev,
"can't allocate host bridge window %pR\n",
&window->resource);
} else {
if (offset)
dev_info(&info->bridge->dev, "host bridge window %pR "
"(PCI address [%#llx-%#llx])\n",
&window->resource,
window->resource.start - offset,
window->resource.end - offset);
else
dev_info(&info->bridge->dev,
"host bridge window %pR\n",
&window->resource);
}
return AE_OK;
@ -319,8 +331,9 @@ pcibios_setup_root_windows(struct pci_bus *bus, struct pci_controller *ctrl)
(res->end - res->start < 16))
continue;
if (j >= PCI_BUS_NUM_RESOURCES) {
printk("Ignoring range [%#llx-%#llx] (%lx)\n",
res->start, res->end, res->flags);
dev_warn(&bus->dev,
"ignoring host bridge window %pR (no space)\n",
res);
continue;
}
bus->resource[j++] = res;
@ -364,6 +377,7 @@ pci_acpi_scan_root(struct acpi_device *device, int domain, int bus)
goto out3;
sprintf(name, "PCI Bus %04x:%02x", domain, bus);
info.bridge = device;
info.controller = controller;
info.name = name;
acpi_walk_resources(device->handle, METHOD_NAME__CRS,
@ -720,9 +734,6 @@ int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size)
return ret;
}
/* It's defined in drivers/pci/pci.c */
extern u8 pci_cache_line_size;
/**
* set_pci_cacheline_size - determine cacheline size for PCI devices
*
@ -731,7 +742,7 @@ extern u8 pci_cache_line_size;
*
* Code mostly taken from arch/ia64/kernel/palinfo.c:cache_info().
*/
static void __init set_pci_cacheline_size(void)
static void __init set_pci_dfl_cacheline_size(void)
{
unsigned long levels, unique_caches;
long status;
@ -751,7 +762,7 @@ static void __init set_pci_cacheline_size(void)
"(status=%ld)\n", __func__, status);
return;
}
pci_cache_line_size = (1 << cci.pcci_line_size) / 4;
pci_dfl_cache_line_size = (1 << cci.pcci_line_size) / 4;
}
u64 ia64_dma_get_required_mask(struct device *dev)
@ -782,7 +793,7 @@ EXPORT_SYMBOL_GPL(dma_get_required_mask);
static int __init pcibios_init(void)
{
set_pci_cacheline_size();
set_pci_dfl_cacheline_size();
return 0;
}

2
arch/sparc/include/asm/pci_64.h
View file

@ -16,8 +16,6 @@
#define PCI_IRQ_NONE 0xffffffff
#define PCI_CACHE_LINE_BYTES 64
static inline void pcibios_set_master(struct pci_dev *dev)
{
/* No special bus mastering setup handling */

7
arch/sparc/kernel/pci.c
View file

@ -1081,3 +1081,10 @@ void pci_resource_to_user(const struct pci_dev *pdev, int bar,
*start = rp->start - offset;
*end = rp->end - offset;
}
static int __init pcibios_init(void)
{
pci_dfl_cache_line_size = 64 >> 2;
return 0;
}
subsys_initcall(pcibios_init);

20
arch/x86/include/asm/pci_x86.h
View file

@ -118,11 +118,27 @@ extern int __init pcibios_init(void);
/* pci-mmconfig.c */
/* "PCI MMCONFIG %04x [bus %02x-%02x]" */
#define PCI_MMCFG_RESOURCE_NAME_LEN (22 + 4 + 2 + 2)
struct pci_mmcfg_region {
struct list_head list;
struct resource res;
u64 address;
char __iomem *virt;
u16 segment;
u8 start_bus;
u8 end_bus;
char name[PCI_MMCFG_RESOURCE_NAME_LEN];
};
extern int __init pci_mmcfg_arch_init(void);
extern void __init pci_mmcfg_arch_free(void);
extern struct pci_mmcfg_region *pci_mmconfig_lookup(int segment, int bus);
extern struct acpi_mcfg_allocation *pci_mmcfg_config;
extern int pci_mmcfg_config_num;
extern struct list_head pci_mmcfg_list;
#define PCI_MMCFG_BUS_OFFSET(bus) ((bus) << 20)
/*
* AMD Fam10h CPUs are buggy, and cannot access MMIO config space

27
arch/x86/include/asm/xen/hypervisor.h
View file

@ -37,31 +37,4 @@
extern struct shared_info *HYPERVISOR_shared_info;
extern struct start_info *xen_start_info;
enum xen_domain_type {
XEN_NATIVE, /* running on bare hardware */
XEN_PV_DOMAIN, /* running in a PV domain */
XEN_HVM_DOMAIN, /* running in a Xen hvm domain */
};
#ifdef CONFIG_XEN
extern enum xen_domain_type xen_domain_type;
#else
#define xen_domain_type XEN_NATIVE
#endif
#define xen_domain() (xen_domain_type != XEN_NATIVE)
#define xen_pv_domain() (xen_domain() && \
xen_domain_type == XEN_PV_DOMAIN)
#define xen_hvm_domain() (xen_domain() && \
xen_domain_type == XEN_HVM_DOMAIN)
#ifdef CONFIG_XEN_DOM0
#include <xen/interface/xen.h>
#define xen_initial_domain() (xen_pv_domain() && \
xen_start_info->flags & SIF_INITDOMAIN)
#else /* !CONFIG_XEN_DOM0 */
#define xen_initial_domain() (0)
#endif /* CONFIG_XEN_DOM0 */
#endif /* _ASM_X86_XEN_HYPERVISOR_H */

3
arch/x86/kernel/amd_iommu_init.c
View file

@ -1336,6 +1336,9 @@ void __init amd_iommu_detect(void)
iommu_detected = 1;
amd_iommu_detected = 1;
x86_init.iommu.iommu_init = amd_iommu_init;
/* Make sure ACS will be enabled */
pci_request_acs();
}
}

5
arch/x86/pci/Makefile
View file

@ -15,3 +15,8 @@ obj-$(CONFIG_X86_NUMAQ) += numaq_32.o
obj-y += common.o early.o
obj-y += amd_bus.o
obj-$(CONFIG_X86_64) += bus_numa.o intel_bus.o
ifeq ($(CONFIG_PCI_DEBUG),y)
EXTRA_CFLAGS += -DDEBUG
endif

74
arch/x86/pci/acpi.c
View file

@ -7,6 +7,7 @@
#include <asm/pci_x86.h>
struct pci_root_info {
struct acpi_device *bridge;
char *name;
unsigned int res_num;
struct resource *res;
@ -58,6 +59,30 @@ bus_has_transparent_bridge(struct pci_bus *bus)
return false;
}
static void
align_resource(struct acpi_device *bridge, struct resource *res)
{
int align = (res->flags & IORESOURCE_MEM) ? 16 : 4;
/*
* Host bridge windows are not BARs, but the decoders on the PCI side
* that claim this address space have starting alignment and length
* constraints, so fix any obvious BIOS goofs.
*/
if (!IS_ALIGNED(res->start, align)) {
dev_printk(KERN_DEBUG, &bridge->dev,
"host bridge window %pR invalid; "
"aligning start to %d-byte boundary\n", res, align);
res->start &= ~(align - 1);
}
if (!IS_ALIGNED(res->end + 1, align)) {
dev_printk(KERN_DEBUG, &bridge->dev,
"host bridge window %pR invalid; "
"aligning end to %d-byte boundary\n", res, align);
res->end = ALIGN(res->end, align) - 1;
}
}
static acpi_status
setup_resource(struct acpi_resource *acpi_res, void *data)
{
@ -91,11 +116,12 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
start = addr.minimum + addr.translation_offset;
end = start + addr.address_length - 1;
if (info->res_num >= max_root_bus_resources) {
printk(KERN_WARNING "PCI: Failed to allocate 0x%lx-0x%lx "
"from %s for %s due to _CRS returning more than "
"%d resource descriptors\n", (unsigned long) start,
(unsigned long) end, root->name, info->name,
max_root_bus_resources);
if (pci_probe & PCI_USE__CRS)
printk(KERN_WARNING "PCI: Failed to allocate "
"0x%lx-0x%lx from %s for %s due to _CRS "
"returning more than %d resource descriptors\n",
(unsigned long) start, (unsigned long) end,
root->name, info->name, max_root_bus_resources);
return AE_OK;
}
@ -105,14 +131,28 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
res->start = start;
res->end = end;
res->child = NULL;
align_resource(info->bridge, res);
if (!(pci_probe & PCI_USE__CRS)) {
dev_printk(KERN_DEBUG, &info->bridge->dev,
"host bridge window %pR (ignored)\n", res);
return AE_OK;
}
if (insert_resource(root, res)) {
printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx "
"from %s for %s\n", (unsigned long) res->start,
(unsigned long) res->end, root->name, info->name);
dev_err(&info->bridge->dev,
"can't allocate host bridge window %pR\n", res);
} else {
info->bus->resource[info->res_num] = res;
info->res_num++;
if (addr.translation_offset)
dev_info(&info->bridge->dev, "host bridge window %pR "
"(PCI address [%#llx-%#llx])\n",
res, res->start - addr.translation_offset,
res->end - addr.translation_offset);
else
dev_info(&info->bridge->dev,
"host bridge window %pR\n", res);
}
return AE_OK;
}
@ -124,6 +164,12 @@ get_current_resources(struct acpi_device *device, int busnum,
struct pci_root_info info;
size_t size;
if (!(pci_probe & PCI_USE__CRS))
dev_info(&device->dev,
"ignoring host bridge windows from ACPI; "
"boot with \"pci=use_crs\" to use them\n");
info.bridge = device;
info.bus = bus;
info.res_num = 0;
acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_resource,
@ -163,8 +209,9 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
#endif
if (domain && !pci_domains_supported) {
printk(KERN_WARNING "PCI: Multiple domains not supported "
"(dom %d, bus %d)\n", domain, busnum);
printk(KERN_WARNING "pci_bus %04x:%02x: "
"ignored (multiple domains not supported)\n",
domain, busnum);
return NULL;
}
@ -188,7 +235,8 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
*/
sd = kzalloc(sizeof(*sd), GFP_KERNEL);
if (!sd) {
printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n", busnum);
printk(KERN_WARNING "pci_bus %04x:%02x: "
"ignored (out of memory)\n", domain, busnum);
return NULL;
}
@ -209,9 +257,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
} else {
bus = pci_create_bus(NULL, busnum, &pci_root_ops, sd);
if (bus) {
if (pci_probe & PCI_USE__CRS)
get_current_resources(device, busnum, domain,
bus);
get_current_resources(device, busnum, domain, bus);
bus->subordinate = pci_scan_child_bus(bus);
}
}

120
arch/x86/pci/amd_bus.c
View file

@ -6,10 +6,10 @@
#ifdef CONFIG_X86_64
#include <asm/pci-direct.h>
#include <asm/mpspec.h>
#include <linux/cpumask.h>
#endif
#include "bus_numa.h"
/*
* This discovers the pcibus <-> node mapping on AMD K8.
* also get peer root bus resource for io,mmio
@ -17,67 +17,6 @@
#ifdef CONFIG_X86_64
/*
* sub bus (transparent) will use entres from 3 to store extra from root,
* so need to make sure have enought slot there, increase PCI_BUS_NUM_RESOURCES?
*/
#define RES_NUM 16
struct pci_root_info {
char name[12];
unsigned int res_num;
struct resource res[RES_NUM];
int bus_min;
int bus_max;
int node;
int link;
};
/* 4 at this time, it may become to 32 */
#define PCI_ROOT_NR 4
static int pci_root_num;
static struct pci_root_info pci_root_info[PCI_ROOT_NR];
void x86_pci_root_bus_res_quirks(struct pci_bus *b)
{
int i;
int j;
struct pci_root_info *info;
/* don't go for it if _CRS is used already */
if (b->resource[0] != &ioport_resource ||
b->resource[1] != &iomem_resource)
return;
/* if only one root bus, don't need to anything */
if (pci_root_num < 2)
return;
for (i = 0; i < pci_root_num; i++) {
if (pci_root_info[i].bus_min == b->number)
break;
}
if (i == pci_root_num)
return;
printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n",
b->number);
info = &pci_root_info[i];
for (j = 0; j < info->res_num; j++) {
struct resource *res;
struct resource *root;
res = &info->res[j];
b->resource[j] = res;
if (res->flags & IORESOURCE_IO)
root = &ioport_resource;
else
root = &iomem_resource;
insert_resource(root, res);
}
}
#define RANGE_NUM 16
struct res_range {
@ -130,52 +69,6 @@ static void __init update_range(struct res_range *range, size_t start,
}
}
static void __init update_res(struct pci_root_info *info, size_t start,
size_t end, unsigned long flags, int merge)
{
int i;
struct resource *res;
if (!merge)
goto addit;
/* try to merge it with old one */
for (i = 0; i < info->res_num; i++) {
size_t final_start, final_end;
size_t common_start, common_end;
res = &info->res[i];
if (res->flags != flags)
continue;
common_start = max((size_t)res->start, start);
common_end = min((size_t)res->end, end);
if (common_start > common_end + 1)
continue;
final_start = min((size_t)res->start, start);
final_end = max((size_t)res->end, end);
res->start = final_start;
res->end = final_end;
return;
}
addit:
/* need to add that */
if (info->res_num >= RES_NUM)
return;
res = &info->res[info->res_num];
res->name = info->name;
res->flags = flags;
res->start = start;
res->end = end;
res->child = NULL;
info->res_num++;
}
struct pci_hostbridge_probe {
u32 bus;
u32 slot;
@ -230,7 +123,6 @@ static int __init early_fill_mp_bus_info(void)
int j;
unsigned bus;
unsigned slot;
int found;
int node;
int link;
int def_node;
@ -247,7 +139,7 @@ static int __init early_fill_mp_bus_info(void)
if (!early_pci_allowed())
return -1;
found = 0;
found_all_numa_early = 0;
for (i = 0; i < ARRAY_SIZE(pci_probes); i++) {
u32 id;
u16 device;
@ -261,12 +153,12 @@ static int __init early_fill_mp_bus_info(void)
device = (id>>16) & 0xffff;
if (pci_probes[i].vendor == vendor &&
pci_probes[i].device == device) {
found = 1;
found_all_numa_early = 1;
break;
}
}
if (!found)
if (!found_all_numa_early)
return 0;
pci_root_num = 0;
@ -488,7 +380,7 @@ static int __init early_fill_mp_bus_info(void)
info = &pci_root_info[i];
res_num = info->res_num;
busnum = info->bus_min;
printk(KERN_DEBUG "bus: [%02x,%02x] on node %x link %x\n",
printk(KERN_DEBUG "bus: [%02x, %02x] on node %x link %x\n",
info->bus_min, info->bus_max, info->node, info->link);
for (j = 0; j < res_num; j++) {
res = &info->res[j];

101
arch/x86/pci/bus_numa.c Normal file
View file

@ -0,0 +1,101 @@
#include <linux/init.h>
#include <linux/pci.h>
#include "bus_numa.h"
int pci_root_num;
struct pci_root_info pci_root_info[PCI_ROOT_NR];
int found_all_numa_early;
void x86_pci_root_bus_res_quirks(struct pci_bus *b)
{
int i;
int j;
struct pci_root_info *info;
/* don't go for it if _CRS is used already */
if (b->resource[0] != &ioport_resource ||
b->resource[1] != &iomem_resource)
return;
if (!pci_root_num)
return;
/* for amd, if only one root bus, don't need to do anything */
if (pci_root_num < 2 && found_all_numa_early)
return;
for (i = 0; i < pci_root_num; i++) {
if (pci_root_info[i].bus_min == b->number)
break;
}
if (i == pci_root_num)
return;
printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n",
b->number);
info = &pci_root_info[i];
for (j = 0; j < info->res_num; j++) {
struct resource *res;
struct resource *root;
res = &info->res[j];
b->resource[j] = res;
if (res->flags & IORESOURCE_IO)
root = &ioport_resource;
else
root = &iomem_resource;
insert_resource(root, res);
}
}
void __init update_res(struct pci_root_info *info, size_t start,
size_t end, unsigned long flags, int merge)
{
int i;
struct resource *res;
if (start > end)
return;
if (!merge)
goto addit;
/* try to merge it with old one */
for (i = 0; i < info->res_num; i++) {
size_t final_start, final_end;
size_t common_start, common_end;
res = &info->res[i];
if (res->flags != flags)
continue;
common_start = max((size_t)res->start, start);
common_end = min((size_t)res->end, end);
if (common_start > common_end + 1)
continue;
final_start = min((size_t)res->start, start);
final_end = max((size_t)res->end, end);
res->start = final_start;
res->end = final_end;
return;
}
addit:
/* need to add that */
if (info->res_num >= RES_NUM)
return;
res = &info->res[info->res_num];
res->name = info->name;
res->flags = flags;
res->start = start;
res->end = end;
res->child = NULL;
info->res_num++;
}

27
arch/x86/pci/bus_numa.h Normal file
View file

@ -0,0 +1,27 @@
#ifdef CONFIG_X86_64
/*
* sub bus (transparent) will use entres from 3 to store extra from
* root, so need to make sure we have enough slot there, Should we
* increase PCI_BUS_NUM_RESOURCES?
*/
#define RES_NUM 16
struct pci_root_info {
char name[12];
unsigned int res_num;
struct resource res[RES_NUM];
int bus_min;
int bus_max;
int node;
int link;
};
/* 4 at this time, it may become to 32 */
#define PCI_ROOT_NR 4
extern int pci_root_num;
extern struct pci_root_info pci_root_info[PCI_ROOT_NR];
extern int found_all_numa_early;
extern void update_res(struct pci_root_info *info, size_t start,
size_t end, unsigned long flags, int merge);
#endif

20
arch/x86/pci/common.c
View file

@ -410,8 +410,6 @@ struct pci_bus * __devinit pcibios_scan_root(int busnum)
return bus;
}
extern u8 pci_cache_line_size;
int __init pcibios_init(void)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
@ -422,15 +420,19 @@ int __init pcibios_init(void)
}
/*
* Assume PCI cacheline size of 32 bytes for all x86s except K7/K8
* and P4. It's also good for 386/486s (which actually have 16)
* Set PCI cacheline size to that of the CPU if the CPU has reported it.
* (For older CPUs that don't support cpuid, we se it to 32 bytes
* It's also good for 386/486s (which actually have 16)
* as quite a few PCI devices do not support smaller values.
*/
pci_cache_line_size = 32 >> 2;
if (c->x86 >= 6 && c->x86_vendor == X86_VENDOR_AMD)
pci_cache_line_size = 64 >> 2; /* K7 & K8 */
else if (c->x86 > 6 && c->x86_vendor == X86_VENDOR_INTEL)
pci_cache_line_size = 128 >> 2; /* P4 */
if (c->x86_clflush_size > 0) {
pci_dfl_cache_line_size = c->x86_clflush_size >> 2;
printk(KERN_DEBUG "PCI: pci_cache_line_size set to %d bytes\n",
pci_dfl_cache_line_size << 2);
} else {
pci_dfl_cache_line_size = 32 >> 2;
printk(KERN_DEBUG "PCI: Unknown cacheline size. Setting to 32 bytes\n");
}
pcibios_resource_survey();

7
arch/x86/pci/early.c
View file

@ -12,8 +12,6 @@ u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset)
u32 v;
outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
v = inl(0xcfc);
if (v != 0xffffffff)
pr_debug("%x reading 4 from %x: %x\n", slot, offset, v);
return v;
}
@ -22,7 +20,6 @@ u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset)
u8 v;
outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
v = inb(0xcfc + (offset&3));
pr_debug("%x reading 1 from %x: %x\n", slot, offset, v);
return v;
}
@ -31,28 +28,24 @@ u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset)
u16 v;
outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
v = inw(0xcfc + (offset&2));
pr_debug("%x reading 2 from %x: %x\n", slot, offset, v);
return v;
}
void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset,
u32 val)
{
pr_debug("%x writing to %x: %x\n", slot, offset, val);
outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
outl(val, 0xcfc);
}
void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val)
{
pr_debug("%x writing to %x: %x\n", slot, offset, val);
outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
outb(val, 0xcfc + (offset&3));
}
void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val)
{
pr_debug("%x writing to %x: %x\n", slot, offset, val);
outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
outw(val, 0xcfc + (offset&2));
}

42
arch/x86/pci/i386.c
View file

@ -129,7 +129,9 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
continue;
if (!r->start ||
pci_claim_resource(dev, idx) < 0) {
dev_info(&dev->dev, "BAR %d: can't allocate resource\n", idx);
dev_info(&dev->dev,
"can't reserve window %pR\n",
r);
/*
* Something is wrong with the region.
* Invalidate the resource to prevent
@ -144,16 +146,29 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
}
}
struct pci_check_idx_range {
int start;
int end;
};
static void __init pcibios_allocate_resources(int pass)
{
struct pci_dev *dev = NULL;
int idx, disabled;
int idx, disabled, i;
u16 command;
struct resource *r;
struct pci_check_idx_range idx_range[] = {
{ PCI_STD_RESOURCES, PCI_STD_RESOURCE_END },
#ifdef CONFIG_PCI_IOV
{ PCI_IOV_RESOURCES, PCI_IOV_RESOURCE_END },
#endif
};
for_each_pci_dev(dev) {
pci_read_config_word(dev, PCI_COMMAND, &command);
for (idx = 0; idx < PCI_ROM_RESOURCE; idx++) {
for (i = 0; i < ARRAY_SIZE(idx_range); i++)
for (idx = idx_range[i].start; idx <= idx_range[i].end; idx++) {
r = &dev->resource[idx];
if (r->parent) /* Already allocated */
continue;
@ -164,12 +179,12 @@ static void __init pcibios_allocate_resources(int pass)
else
disabled = !(command & PCI_COMMAND_MEMORY);
if (pass == disabled) {
dev_dbg(&dev->dev, "resource %#08llx-%#08llx (f=%lx, d=%d, p=%d)\n",
(unsigned long long) r->start,
(unsigned long long) r->end,
r->flags, disabled, pass);
dev_dbg(&dev->dev,
"BAR %d: reserving %pr (d=%d, p=%d)\n",
idx, r, disabled, pass);
if (pci_claim_resource(dev, idx) < 0) {
dev_info(&dev->dev, "BAR %d: can't allocate resource\n", idx);
dev_info(&dev->dev,
"can't reserve %pR\n", r);
/* We'll assign a new address later */
r->end -= r->start;
r->start = 0;
@ -182,7 +197,7 @@ static void __init pcibios_allocate_resources(int pass)
/* Turn the ROM off, leave the resource region,
* but keep it unregistered. */
u32 reg;
dev_dbg(&dev->dev, "disabling ROM\n");
dev_dbg(&dev->dev, "disabling ROM %pR\n", r);
r->flags &= ~IORESOURCE_ROM_ENABLE;
pci_read_config_dword(dev,
dev->rom_base_reg, &reg);
@ -282,6 +297,15 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
return -EINVAL;
prot = pgprot_val(vma->vm_page_prot);
/*
* Return error if pat is not enabled and write_combine is requested.
* Caller can followup with UC MINUS request and add a WC mtrr if there
* is a free mtrr slot.
*/
if (!pat_enabled && write_combine)
return -EINVAL;
if (pat_enabled && write_combine)
prot |= _PAGE_CACHE_WC;
else if (pat_enabled || boot_cpu_data.x86 > 3)

90
arch/x86/pci/intel_bus.c Normal file
View file

@ -0,0 +1,90 @@
/*
* to read io range from IOH pci conf, need to do it after mmconfig is there
*/
#include <linux/delay.h>
#include <linux/dmi.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <asm/pci_x86.h>
#include "bus_numa.h"
static inline void print_ioh_resources(struct pci_root_info *info)
{
int res_num;
int busnum;
int i;
printk(KERN_DEBUG "IOH bus: [%02x, %02x]\n",
info->bus_min, info->bus_max);
res_num = info->res_num;
busnum = info->bus_min;
for (i = 0; i < res_num; i++) {
struct resource *res;
res = &info->res[i];
printk(KERN_DEBUG "IOH bus: %02x index %x %s: [%llx, %llx]\n",
busnum, i,
(res->flags & IORESOURCE_IO) ? "io port" :
"mmio",
res->start, res->end);
}
}
#define IOH_LIO 0x108
#define IOH_LMMIOL 0x10c
#define IOH_LMMIOH 0x110
#define IOH_LMMIOH_BASEU 0x114
#define IOH_LMMIOH_LIMITU 0x118
#define IOH_LCFGBUS 0x11c
static void __devinit pci_root_bus_res(struct pci_dev *dev)
{
u16 word;
u32 dword;
struct pci_root_info *info;
u16 io_base, io_end;
u32 mmiol_base, mmiol_end;
u64 mmioh_base, mmioh_end;
int bus_base, bus_end;
if (pci_root_num >= PCI_ROOT_NR) {
printk(KERN_DEBUG "intel_bus.c: PCI_ROOT_NR is too small\n");
return;
}
info = &pci_root_info[pci_root_num];
pci_root_num++;
pci_read_config_word(dev, IOH_LCFGBUS, &word);
bus_base = (word & 0xff);
bus_end = (word & 0xff00) >> 8;
sprintf(info->name, "PCI Bus #%02x", bus_base);
info->bus_min = bus_base;
info->bus_max = bus_end;
pci_read_config_word(dev, IOH_LIO, &word);
io_base = (word & 0xf0) << (12 - 4);
io_end = (word & 0xf000) | 0xfff;
update_res(info, io_base, io_end, IORESOURCE_IO, 0);
pci_read_config_dword(dev, IOH_LMMIOL, &dword);
mmiol_base = (dword & 0xff00) << (24 - 8);
mmiol_end = (dword & 0xff000000) | 0xffffff;
update_res(info, mmiol_base, mmiol_end, IORESOURCE_MEM, 0);
pci_read_config_dword(dev, IOH_LMMIOH, &dword);
mmioh_base = ((u64)(dword & 0xfc00)) << (26 - 10);
mmioh_end = ((u64)(dword & 0xfc000000) | 0x3ffffff);
pci_read_config_dword(dev, IOH_LMMIOH_BASEU, &dword);
mmioh_base |= ((u64)(dword & 0x7ffff)) << 32;
pci_read_config_dword(dev, IOH_LMMIOH_LIMITU, &dword);
mmioh_end |= ((u64)(dword & 0x7ffff)) << 32;
update_res(info, mmioh_base, mmioh_end, IORESOURCE_MEM, 0);
print_ioh_resources(info);
}
/* intel IOH */
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, pci_root_bus_res);

364
arch/x86/pci/mmconfig-shared.c
View file

@ -15,48 +15,98 @@
#include <linux/acpi.h>
#include <linux/sfi_acpi.h>
#include <linux/bitmap.h>
#include <linux/sort.h>
#include <linux/dmi.h>
#include <asm/e820.h>
#include <asm/pci_x86.h>
#include <asm/acpi.h>
#define PREFIX "PCI: "
/* aperture is up to 256MB but BIOS may reserve less */
#define MMCONFIG_APER_MIN (2 * 1024*1024)
#define MMCONFIG_APER_MAX (256 * 1024*1024)
/* Indicate if the mmcfg resources have been placed into the resource table. */
static int __initdata pci_mmcfg_resources_inserted;
static __init int extend_mmcfg(int num)
LIST_HEAD(pci_mmcfg_list);
static __init void pci_mmconfig_remove(struct pci_mmcfg_region *cfg)
{
struct acpi_mcfg_allocation *new;
int new_num = pci_mmcfg_config_num + num;
new = kzalloc(sizeof(pci_mmcfg_config[0]) * new_num, GFP_KERNEL);
if (!new)
return -1;
if (pci_mmcfg_config) {
memcpy(new, pci_mmcfg_config,
sizeof(pci_mmcfg_config[0]) * new_num);
kfree(pci_mmcfg_config);
}
pci_mmcfg_config = new;
return 0;
if (cfg->res.parent)
release_resource(&cfg->res);
list_del(&cfg->list);
kfree(cfg);
}
static __init void fill_one_mmcfg(u64 addr, int segment, int start, int end)
static __init void free_all_mmcfg(void)
{
int i = pci_mmcfg_config_num;
struct pci_mmcfg_region *cfg, *tmp;
pci_mmcfg_config_num++;
pci_mmcfg_config[i].address = addr;
pci_mmcfg_config[i].pci_segment = segment;
pci_mmcfg_config[i].start_bus_number = start;
pci_mmcfg_config[i].end_bus_number = end;
pci_mmcfg_arch_free();
list_for_each_entry_safe(cfg, tmp, &pci_mmcfg_list, list)
pci_mmconfig_remove(cfg);
}
static __init void list_add_sorted(struct pci_mmcfg_region *new)
{
struct pci_mmcfg_region *cfg;
/* keep list sorted by segment and starting bus number */
list_for_each_entry(cfg, &pci_mmcfg_list, list) {
if (cfg->segment > new->segment ||
(cfg->segment == new->segment &&
cfg->start_bus >= new->start_bus)) {
list_add_tail(&new->list, &cfg->list);
return;
}
}
list_add_tail(&new->list, &pci_mmcfg_list);
}
static __init struct pci_mmcfg_region *pci_mmconfig_add(int segment, int start,
int end, u64 addr)
{
struct pci_mmcfg_region *new;
int num_buses;
struct resource *res;
if (addr == 0)
return NULL;
new = kzalloc(sizeof(*new), GFP_KERNEL);
if (!new)
return NULL;
new->address = addr;
new->segment = segment;
new->start_bus = start;
new->end_bus = end;
list_add_sorted(new);
num_buses = end - start + 1;
res = &new->res;
res->start = addr + PCI_MMCFG_BUS_OFFSET(start);
res->end = addr + PCI_MMCFG_BUS_OFFSET(num_buses) - 1;
res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
snprintf(new->name, PCI_MMCFG_RESOURCE_NAME_LEN,
"PCI MMCONFIG %04x [bus %02x-%02x]", segment, start, end);
res->name = new->name;
printk(KERN_INFO PREFIX "MMCONFIG for domain %04x [bus %02x-%02x] at "
"%pR (base %#lx)\n", segment, start, end, &new->res,
(unsigned long) addr);
return new;
}
struct pci_mmcfg_region *pci_mmconfig_lookup(int segment, int bus)
{
struct pci_mmcfg_region *cfg;
list_for_each_entry(cfg, &pci_mmcfg_list, list)
if (cfg->segment == segment &&
cfg->start_bus <= bus && bus <= cfg->end_bus)
return cfg;
return NULL;
}
static const char __init *pci_mmcfg_e7520(void)
@ -68,11 +118,9 @@ static const char __init *pci_mmcfg_e7520(void)
if (win == 0x0000 || win == 0xf000)
return NULL;
if (extend_mmcfg(1) == -1)
if (pci_mmconfig_add(0, 0, 255, win << 16) == NULL)
return NULL;
fill_one_mmcfg(win << 16, 0, 0, 255);
return "Intel Corporation E7520 Memory Controller Hub";
}
@ -114,11 +162,9 @@ static const char __init *pci_mmcfg_intel_945(void)
if ((pciexbar & mask) >= 0xf0000000U)
return NULL;
if (extend_mmcfg(1) == -1)
if (pci_mmconfig_add(0, 0, (len >> 20) - 1, pciexbar & mask) == NULL)
return NULL;
fill_one_mmcfg(pciexbar & mask, 0, 0, (len >> 20) - 1);
return "Intel Corporation 945G/GZ/P/PL Express Memory Controller Hub";
}
@ -127,7 +173,7 @@ static const char __init *pci_mmcfg_amd_fam10h(void)
u32 low, high, address;
u64 base, msr;
int i;
unsigned segnbits = 0, busnbits;
unsigned segnbits = 0, busnbits, end_bus;
if (!(pci_probe & PCI_CHECK_ENABLE_AMD_MMCONF))
return NULL;
@ -161,11 +207,13 @@ static const char __init *pci_mmcfg_amd_fam10h(void)
busnbits = 8;
}
if (extend_mmcfg(1 << segnbits) == -1)
return NULL;
end_bus = (1 << busnbits) - 1;
for (i = 0; i < (1 << segnbits); i++)
fill_one_mmcfg(base + (1<<28) * i, i, 0, (1 << busnbits) - 1);
if (pci_mmconfig_add(i, 0, end_bus,
base + (1<<28) * i) == NULL) {
free_all_mmcfg();
return NULL;
}
return "AMD Family 10h NB";
}
@ -190,7 +238,7 @@ static const char __init *pci_mmcfg_nvidia_mcp55(void)
/*
* do check if amd fam10h already took over
*/
if (!acpi_disabled || pci_mmcfg_config_num || mcp55_checked)
if (!acpi_disabled || !list_empty(&pci_mmcfg_list) || mcp55_checked)
return NULL;
mcp55_checked = true;
@ -213,16 +261,14 @@ static const char __init *pci_mmcfg_nvidia_mcp55(void)
if (!(extcfg & extcfg_enable_mask))
continue;
if (extend_mmcfg(1) == -1)
continue;
size_index = (extcfg & extcfg_size_mask) >> extcfg_size_shift;
base = extcfg & extcfg_base_mask[size_index];
/* base could > 4G */
base <<= extcfg_base_lshift;
start = (extcfg & extcfg_start_mask) >> extcfg_start_shift;
end = start + extcfg_sizebus[size_index] - 1;
fill_one_mmcfg(base, 0, start, end);
if (pci_mmconfig_add(0, start, end, base) == NULL)
continue;
mcp55_mmconf_found++;
}
@ -253,45 +299,27 @@ static struct pci_mmcfg_hostbridge_probe pci_mmcfg_probes[] __initdata = {
0x0369, pci_mmcfg_nvidia_mcp55 },
};
static int __init cmp_mmcfg(const void *x1, const void *x2)
{
const typeof(pci_mmcfg_config[0]) *m1 = x1;
const typeof(pci_mmcfg_config[0]) *m2 = x2;
int start1, start2;
start1 = m1->start_bus_number;
start2 = m2->start_bus_number;
return start1 - start2;
}
static void __init pci_mmcfg_check_end_bus_number(void)
{
int i;
typeof(pci_mmcfg_config[0]) *cfg, *cfgx;
/* sort them at first */
sort(pci_mmcfg_config, pci_mmcfg_config_num,
sizeof(pci_mmcfg_config[0]), cmp_mmcfg, NULL);
struct pci_mmcfg_region *cfg, *cfgx;
/* last one*/
if (pci_mmcfg_config_num > 0) {
i = pci_mmcfg_config_num - 1;
cfg = &pci_mmcfg_config[i];
if (cfg->end_bus_number < cfg->start_bus_number)
cfg->end_bus_number = 255;
}
cfg = list_entry(pci_mmcfg_list.prev, typeof(*cfg), list);
if (cfg)
if (cfg->end_bus < cfg->start_bus)
cfg->end_bus = 255;
if (list_is_singular(&pci_mmcfg_list))
return;
/* don't overlap please */
for (i = 0; i < pci_mmcfg_config_num - 1; i++) {
cfg = &pci_mmcfg_config[i];
cfgx = &pci_mmcfg_config[i+1];
list_for_each_entry(cfg, &pci_mmcfg_list, list) {
if (cfg->end_bus < cfg->start_bus)
cfg->end_bus = 255;
if (cfg->end_bus_number < cfg->start_bus_number)
cfg->end_bus_number = 255;
if (cfg->end_bus_number >= cfgx->start_bus_number)
cfg->end_bus_number = cfgx->start_bus_number - 1;
cfgx = list_entry(cfg->list.next, typeof(*cfg), list);
if (cfg != cfgx && cfg->end_bus >= cfgx->start_bus)
cfg->end_bus = cfgx->start_bus - 1;
}
}
@ -306,8 +334,7 @@ static int __init pci_mmcfg_check_hostbridge(void)
if (!raw_pci_ops)
return 0;
pci_mmcfg_config_num = 0;
pci_mmcfg_config = NULL;
free_all_mmcfg();
for (i = 0; i < ARRAY_SIZE(pci_mmcfg_probes); i++) {
bus = pci_mmcfg_probes[i].bus;
@ -322,45 +349,22 @@ static int __init pci_mmcfg_check_hostbridge(void)
name = pci_mmcfg_probes[i].probe();
if (name)
printk(KERN_INFO "PCI: Found %s with MMCONFIG support.\n",
printk(KERN_INFO PREFIX "%s with MMCONFIG support\n",
name);
}
/* some end_bus_number is crazy, fix it */
pci_mmcfg_check_end_bus_number();
return pci_mmcfg_config_num != 0;
return !list_empty(&pci_mmcfg_list);
}
static void __init pci_mmcfg_insert_resources(void)
{
#define PCI_MMCFG_RESOURCE_NAME_LEN 24
int i;
struct resource *res;
char *names;
unsigned num_buses;
struct pci_mmcfg_region *cfg;
res = kcalloc(PCI_MMCFG_RESOURCE_NAME_LEN + sizeof(*res),
pci_mmcfg_config_num, GFP_KERNEL);
if (!res) {
printk(KERN_ERR "PCI: Unable to allocate MMCONFIG resources\n");
return;
}
names = (void *)&res[pci_mmcfg_config_num];
for (i = 0; i < pci_mmcfg_config_num; i++, res++) {
struct acpi_mcfg_allocation *cfg = &pci_mmcfg_config[i];
num_buses = cfg->end_bus_number - cfg->start_bus_number + 1;
res->name = names;
snprintf(names, PCI_MMCFG_RESOURCE_NAME_LEN,
"PCI MMCONFIG %u [%02x-%02x]", cfg->pci_segment,
cfg->start_bus_number, cfg->end_bus_number);
res->start = cfg->address + (cfg->start_bus_number << 20);
res->end = res->start + (num_buses << 20) - 1;
res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
insert_resource(&iomem_resource, res);
names += PCI_MMCFG_RESOURCE_NAME_LEN;
}
list_for_each_entry(cfg, &pci_mmcfg_list, list)
insert_resource(&iomem_resource, &cfg->res);
/* Mark that the resources have been inserted. */
pci_mmcfg_resources_inserted = 1;
@ -437,11 +441,12 @@ static int __init is_acpi_reserved(u64 start, u64 end, unsigned not_used)
typedef int (*check_reserved_t)(u64 start, u64 end, unsigned type);
static int __init is_mmconf_reserved(check_reserved_t is_reserved,
u64 addr, u64 size, int i,
typeof(pci_mmcfg_config[0]) *cfg, int with_e820)
struct pci_mmcfg_region *cfg, int with_e820)
{
u64 addr = cfg->res.start;
u64 size = resource_size(&cfg->res);
u64 old_size = size;
int valid = 0;
int valid = 0, num_buses;
while (!is_reserved(addr, addr + size, E820_RESERVED)) {
size >>= 1;
@ -450,19 +455,25 @@ static int __init is_mmconf_reserved(check_reserved_t is_reserved,
}
if (size >= (16UL<<20) || size == old_size) {
printk(KERN_NOTICE
"PCI: MCFG area at %Lx reserved in %s\n",
addr, with_e820?"E820":"ACPI motherboard resources");
printk(KERN_INFO PREFIX "MMCONFIG at %pR reserved in %s\n",
&cfg->res,
with_e820 ? "E820" : "ACPI motherboard resources");
valid = 1;
if (old_size != size) {
/* update end_bus_number */
cfg->end_bus_number = cfg->start_bus_number + ((size>>20) - 1);
printk(KERN_NOTICE "PCI: updated MCFG configuration %d: base %lx "
"segment %hu buses %u - %u\n",
i, (unsigned long)cfg->address, cfg->pci_segment,
(unsigned int)cfg->start_bus_number,
(unsigned int)cfg->end_bus_number);
/* update end_bus */
cfg->end_bus = cfg->start_bus + ((size>>20) - 1);
num_buses = cfg->end_bus - cfg->start_bus + 1;
cfg->res.end = cfg->res.start +
PCI_MMCFG_BUS_OFFSET(num_buses) - 1;
snprintf(cfg->name, PCI_MMCFG_RESOURCE_NAME_LEN,
"PCI MMCONFIG %04x [bus %02x-%02x]",
cfg->segment, cfg->start_bus, cfg->end_bus);
printk(KERN_INFO PREFIX
"MMCONFIG for %04x [bus%02x-%02x] "
"at %pR (base %#lx) (size reduced!)\n",
cfg->segment, cfg->start_bus, cfg->end_bus,
&cfg->res, (unsigned long) cfg->address);
}
}
@ -471,45 +482,26 @@ static int __init is_mmconf_reserved(check_reserved_t is_reserved,
static void __init pci_mmcfg_reject_broken(int early)
{
typeof(pci_mmcfg_config[0]) *cfg;
int i;
struct pci_mmcfg_region *cfg;
if ((pci_mmcfg_config_num == 0) ||
(pci_mmcfg_config == NULL) ||
(pci_mmcfg_config[0].address == 0))
return;
for (i = 0; i < pci_mmcfg_config_num; i++) {
list_for_each_entry(cfg, &pci_mmcfg_list, list) {
int valid = 0;
u64 addr, size;
cfg = &pci_mmcfg_config[i];
addr = cfg->start_bus_number;
addr <<= 20;
addr += cfg->address;
size = cfg->end_bus_number + 1 - cfg->start_bus_number;
size <<= 20;
printk(KERN_NOTICE "PCI: MCFG configuration %d: base %lx "
"segment %hu buses %u - %u\n",
i, (unsigned long)cfg->address, cfg->pci_segment,
(unsigned int)cfg->start_bus_number,
(unsigned int)cfg->end_bus_number);
if (!early && !acpi_disabled)
valid = is_mmconf_reserved(is_acpi_reserved, addr, size, i, cfg, 0);
valid = is_mmconf_reserved(is_acpi_reserved, cfg, 0);
if (valid)
continue;
if (!early)
printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %Lx is not"
" reserved in ACPI motherboard resources\n",
cfg->address);
printk(KERN_ERR FW_BUG PREFIX
"MMCONFIG at %pR not reserved in "
"ACPI motherboard resources\n", &cfg->res);
/* Don't try to do this check unless configuration
type 1 is available. how about type 2 ?*/
if (raw_pci_ops)
valid = is_mmconf_reserved(e820_all_mapped, addr, size, i, cfg, 1);
valid = is_mmconf_reserved(e820_all_mapped, cfg, 1);
if (!valid)
goto reject;
@ -518,34 +510,41 @@ static void __init pci_mmcfg_reject_broken(int early)
return;
reject:
printk(KERN_INFO "PCI: Not using MMCONFIG.\n");
pci_mmcfg_arch_free();
kfree(pci_mmcfg_config);
pci_mmcfg_config = NULL;
pci_mmcfg_config_num = 0;
printk(KERN_INFO PREFIX "not using MMCONFIG\n");
free_all_mmcfg();
}
static int __initdata known_bridge;
static int acpi_mcfg_64bit_base_addr __initdata = FALSE;
/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
struct acpi_mcfg_allocation *pci_mmcfg_config;
int pci_mmcfg_config_num;
static int __init acpi_mcfg_oem_check(struct acpi_table_mcfg *mcfg)
static int __init acpi_mcfg_check_entry(struct acpi_table_mcfg *mcfg,
struct acpi_mcfg_allocation *cfg)
{
if (!strcmp(mcfg->header.oem_id, "SGI"))
acpi_mcfg_64bit_base_addr = TRUE;
int year;
if (cfg->address < 0xFFFFFFFF)
return 0;
if (!strcmp(mcfg->header.oem_id, "SGI"))
return 0;
if (mcfg->header.revision >= 1) {
if (dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL) &&
year >= 2010)
return 0;
}
printk(KERN_ERR PREFIX "MCFG region for %04x [bus %02x-%02x] at %#llx "
"is above 4GB, ignored\n", cfg->pci_segment,
cfg->start_bus_number, cfg->end_bus_number, cfg->address);
return -EINVAL;
}
static int __init pci_parse_mcfg(struct acpi_table_header *header)
{
struct acpi_table_mcfg *mcfg;
struct acpi_mcfg_allocation *cfg_table, *cfg;
unsigned long i;
int config_size;
int entries;
if (!header)
return -EINVAL;
@ -553,37 +552,32 @@ static int __init pci_parse_mcfg(struct acpi_table_header *header)
mcfg = (struct acpi_table_mcfg *)header;
/* how many config structures do we have */
pci_mmcfg_config_num = 0;
free_all_mmcfg();
entries = 0;
i = header->length - sizeof(struct acpi_table_mcfg);
while (i >= sizeof(struct acpi_mcfg_allocation)) {
++pci_mmcfg_config_num;
entries++;
i -= sizeof(struct acpi_mcfg_allocation);
};
if (pci_mmcfg_config_num == 0) {
if (entries == 0) {
printk(KERN_ERR PREFIX "MMCONFIG has no entries\n");
return -ENODEV;
}
config_size = pci_mmcfg_config_num * sizeof(*pci_mmcfg_config);
pci_mmcfg_config = kmalloc(config_size, GFP_KERNEL);
if (!pci_mmcfg_config) {
printk(KERN_WARNING PREFIX
"No memory for MCFG config tables\n");
return -ENOMEM;
cfg_table = (struct acpi_mcfg_allocation *) &mcfg[1];
for (i = 0; i < entries; i++) {
cfg = &cfg_table[i];
if (acpi_mcfg_check_entry(mcfg, cfg)) {
free_all_mmcfg();
return -ENODEV;
}
memcpy(pci_mmcfg_config, &mcfg[1], config_size);
acpi_mcfg_oem_check(mcfg);
for (i = 0; i < pci_mmcfg_config_num; ++i) {
if ((pci_mmcfg_config[i].address > 0xFFFFFFFF) &&
!acpi_mcfg_64bit_base_addr) {
printk(KERN_ERR PREFIX
"MMCONFIG not in low 4GB of memory\n");
kfree(pci_mmcfg_config);
pci_mmcfg_config_num = 0;
return -ENODEV;
if (pci_mmconfig_add(cfg->pci_segment, cfg->start_bus_number,
cfg->end_bus_number, cfg->address) == NULL) {
printk(KERN_WARNING PREFIX
"no memory for MCFG entries\n");
free_all_mmcfg();
return -ENOMEM;
}
}
@ -614,9 +608,7 @@ static void __init __pci_mmcfg_init(int early)
pci_mmcfg_reject_broken(early);
if ((pci_mmcfg_config_num == 0) ||
(pci_mmcfg_config == NULL) ||
(pci_mmcfg_config[0].address == 0))
if (list_empty(&pci_mmcfg_list))
return;
if (pci_mmcfg_arch_init())
@ -648,9 +640,7 @@ static int __init pci_mmcfg_late_insert_resources(void)
*/
if ((pci_mmcfg_resources_inserted == 1) ||
(pci_probe & PCI_PROBE_MMCONF) == 0 ||
(pci_mmcfg_config_num == 0) ||
(pci_mmcfg_config == NULL) ||
(pci_mmcfg_config[0].address == 0))
list_empty(&pci_mmcfg_list))
return 1;
/*

14
arch/x86/pci/mmconfig_32.c
View file

@ -27,18 +27,10 @@ static int mmcfg_last_accessed_cpu;
*/
static u32 get_base_addr(unsigned int seg, int bus, unsigned devfn)
{
struct acpi_mcfg_allocation *cfg;
int cfg_num;
struct pci_mmcfg_region *cfg = pci_mmconfig_lookup(seg, bus);
for (cfg_num = 0; cfg_num < pci_mmcfg_config_num; cfg_num++) {
cfg = &pci_mmcfg_config[cfg_num];
if (cfg->pci_segment == seg &&
(cfg->start_bus_number <= bus) &&
(cfg->end_bus_number >= bus))
if (cfg)
return cfg->address;
}
/* Fall back to type 0 */
return 0;
}
@ -47,7 +39,7 @@ static u32 get_base_addr(unsigned int seg, int bus, unsigned devfn)
*/
static void pci_exp_set_dev_base(unsigned int base, int bus, int devfn)
{
u32 dev_base = base | (bus << 20) | (devfn << 12);
u32 dev_base = base | PCI_MMCFG_BUS_OFFSET(bus) | (devfn << 12);
int cpu = smp_processor_id();
if (dev_base != mmcfg_last_accessed_device ||
cpu != mmcfg_last_accessed_cpu) {

86
arch/x86/pci/mmconfig_64.c
View file

@ -12,38 +12,15 @@
#include <asm/e820.h>
#include <asm/pci_x86.h>
/* Static virtual mapping of the MMCONFIG aperture */
struct mmcfg_virt {
struct acpi_mcfg_allocation *cfg;
char __iomem *virt;
};
static struct mmcfg_virt *pci_mmcfg_virt;
static char __iomem *get_virt(unsigned int seg, unsigned bus)
{
struct acpi_mcfg_allocation *cfg;
int cfg_num;
for (cfg_num = 0; cfg_num < pci_mmcfg_config_num; cfg_num++) {
cfg = pci_mmcfg_virt[cfg_num].cfg;
if (cfg->pci_segment == seg &&
(cfg->start_bus_number <= bus) &&
(cfg->end_bus_number >= bus))
return pci_mmcfg_virt[cfg_num].virt;
}
/* Fall back to type 0 */
return NULL;
}
#define PREFIX "PCI: "
static char __iomem *pci_dev_base(unsigned int seg, unsigned int bus, unsigned int devfn)
{
char __iomem *addr;
struct pci_mmcfg_region *cfg = pci_mmconfig_lookup(seg, bus);
addr = get_virt(seg, bus);
if (!addr)
if (cfg && cfg->virt)
return cfg->virt + (PCI_MMCFG_BUS_OFFSET(bus) | (devfn << 12));
return NULL;
return addr + ((bus << 20) | (devfn << 12));
}
static int pci_mmcfg_read(unsigned int seg, unsigned int bus,
@ -109,42 +86,30 @@ static struct pci_raw_ops pci_mmcfg = {
.write = pci_mmcfg_write,
};
static void __iomem * __init mcfg_ioremap(struct acpi_mcfg_allocation *cfg)
static void __iomem * __init mcfg_ioremap(struct pci_mmcfg_region *cfg)
{
void __iomem *addr;
u64 start, size;
int num_buses;
start = cfg->start_bus_number;
start <<= 20;
start += cfg->address;
size = cfg->end_bus_number + 1 - cfg->start_bus_number;
size <<= 20;
start = cfg->address + PCI_MMCFG_BUS_OFFSET(cfg->start_bus);
num_buses = cfg->end_bus - cfg->start_bus + 1;
size = PCI_MMCFG_BUS_OFFSET(num_buses);
addr = ioremap_nocache(start, size);
if (addr) {
printk(KERN_INFO "PCI: Using MMCONFIG at %Lx - %Lx\n",
start, start + size - 1);
addr -= cfg->start_bus_number << 20;
}
if (addr)
addr -= PCI_MMCFG_BUS_OFFSET(cfg->start_bus);
return addr;
}
int __init pci_mmcfg_arch_init(void)
{
int i;
pci_mmcfg_virt = kzalloc(sizeof(*pci_mmcfg_virt) *
pci_mmcfg_config_num, GFP_KERNEL);
if (pci_mmcfg_virt == NULL) {
printk(KERN_ERR "PCI: Can not allocate memory for mmconfig structures\n");
return 0;
}
struct pci_mmcfg_region *cfg;
for (i = 0; i < pci_mmcfg_config_num; ++i) {
pci_mmcfg_virt[i].cfg = &pci_mmcfg_config[i];
pci_mmcfg_virt[i].virt = mcfg_ioremap(&pci_mmcfg_config[i]);
if (!pci_mmcfg_virt[i].virt) {
printk(KERN_ERR "PCI: Cannot map mmconfig aperture for "
"segment %d\n",
pci_mmcfg_config[i].pci_segment);
list_for_each_entry(cfg, &pci_mmcfg_list, list) {
cfg->virt = mcfg_ioremap(cfg);
if (!cfg->virt) {
printk(KERN_ERR PREFIX "can't map MMCONFIG at %pR\n",
&cfg->res);
pci_mmcfg_arch_free();
return 0;
}
@ -155,19 +120,12 @@ int __init pci_mmcfg_arch_init(void)
void __init pci_mmcfg_arch_free(void)
{
int i;
struct pci_mmcfg_region *cfg;
if (pci_mmcfg_virt == NULL)
return;
for (i = 0; i < pci_mmcfg_config_num; ++i) {
if (pci_mmcfg_virt[i].virt) {
iounmap(pci_mmcfg_virt[i].virt + (pci_mmcfg_virt[i].cfg->start_bus_number << 20));
pci_mmcfg_virt[i].virt = NULL;
pci_mmcfg_virt[i].cfg = NULL;
list_for_each_entry(cfg, &pci_mmcfg_list, list) {
if (cfg->virt) {
iounmap(cfg->virt + PCI_MMCFG_BUS_OFFSET(cfg->start_bus));
cfg->virt = NULL;
}
}
kfree(pci_mmcfg_virt);
pci_mmcfg_virt = NULL;
}

6
arch/x86/xen/enlighten.c
View file

@ -27,7 +27,9 @@
#include <linux/page-flags.h>
#include <linux/highmem.h>
#include <linux/console.h>
#include <linux/pci.h>
#include <xen/xen.h>
#include <xen/interface/xen.h>
#include <xen/interface/version.h>
#include <xen/interface/physdev.h>
@ -1175,8 +1177,12 @@ asmlinkage void __init xen_start_kernel(void)
add_preferred_console("xenboot", 0, NULL);
add_preferred_console("tty", 0, NULL);
add_preferred_console("hvc", 0, NULL);
} else {
/* Make sure ACS will be enabled */
pci_request_acs();
}
xen_raw_console_write("about to get started...\n");
xen_setup_runstate_info(0);

1
drivers/acpi/Makefile
View file

@ -19,6 +19,7 @@ obj-y += acpi.o \
# All the builtin files are in the "acpi." module_param namespace.
acpi-y += osl.o utils.o reboot.o
acpi-y += hest.o
# sleep related files
acpi-y += wakeup.o

135
drivers/acpi/hest.c Normal file
View file

@ -0,0 +1,135 @@
#include <linux/acpi.h>
#include <linux/pci.h>
#define PREFIX "ACPI: "
static inline unsigned long parse_acpi_hest_ia_machine_check(struct acpi_hest_ia_machine_check *p)
{
return sizeof(*p) +
(sizeof(struct acpi_hest_ia_error_bank) * p->num_hardware_banks);
}
static inline unsigned long parse_acpi_hest_ia_corrected(struct acpi_hest_ia_corrected *p)
{
return sizeof(*p) +
(sizeof(struct acpi_hest_ia_error_bank) * p->num_hardware_banks);
}
static inline unsigned long parse_acpi_hest_ia_nmi(struct acpi_hest_ia_nmi *p)
{
return sizeof(*p);
}
static inline unsigned long parse_acpi_hest_generic(struct acpi_hest_generic *p)
{
return sizeof(*p);
}
static inline unsigned int hest_match_pci(struct acpi_hest_aer_common *p, struct pci_dev *pci)
{
return (0 == pci_domain_nr(pci->bus) &&
p->bus == pci->bus->number &&
p->device == PCI_SLOT(pci->devfn) &&
p->function == PCI_FUNC(pci->devfn));
}
static unsigned long parse_acpi_hest_aer(void *hdr, int type, struct pci_dev *pci, int *firmware_first)
{
struct acpi_hest_aer_common *p = hdr + sizeof(struct acpi_hest_header);
unsigned long rc=0;
u8 pcie_type = 0;
u8 bridge = 0;
switch (type) {
case ACPI_HEST_TYPE_AER_ROOT_PORT:
rc = sizeof(struct acpi_hest_aer_root);
pcie_type = PCI_EXP_TYPE_ROOT_PORT;
break;
case ACPI_HEST_TYPE_AER_ENDPOINT:
rc = sizeof(struct acpi_hest_aer);
pcie_type = PCI_EXP_TYPE_ENDPOINT;
break;
case ACPI_HEST_TYPE_AER_BRIDGE:
rc = sizeof(struct acpi_hest_aer_bridge);
if ((pci->class >> 16) == PCI_BASE_CLASS_BRIDGE)
bridge = 1;
break;
}
if (p->flags & ACPI_HEST_GLOBAL) {
if ((pci->is_pcie && (pci->pcie_type == pcie_type)) || bridge)
*firmware_first = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST);
}
else
if (hest_match_pci(p, pci))
*firmware_first = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST);
return rc;
}
static int acpi_hest_firmware_first(struct acpi_table_header *stdheader, struct pci_dev *pci)
{
struct acpi_table_hest *hest = (struct acpi_table_hest *)stdheader;
void *p = (void *)hest + sizeof(*hest); /* defined by the ACPI 4.0 spec */
struct acpi_hest_header *hdr = p;
int i;
int firmware_first = 0;
static unsigned char printed_unused = 0;
static unsigned char printed_reserved = 0;
for (i=0, hdr=p; p < (((void *)hest) + hest->header.length) && i < hest->error_source_count; i++) {
switch (hdr->type) {
case ACPI_HEST_TYPE_IA32_CHECK:
p += parse_acpi_hest_ia_machine_check(p);
break;
case ACPI_HEST_TYPE_IA32_CORRECTED_CHECK:
p += parse_acpi_hest_ia_corrected(p);
break;
case ACPI_HEST_TYPE_IA32_NMI:
p += parse_acpi_hest_ia_nmi(p);
break;
/* These three should never appear */
case ACPI_HEST_TYPE_NOT_USED3:
case ACPI_HEST_TYPE_NOT_USED4:
case ACPI_HEST_TYPE_NOT_USED5:
if (!printed_unused) {
printk(KERN_DEBUG PREFIX
"HEST Error Source list contains an obsolete type (%d).\n", hdr->type);
printed_unused = 1;
}
break;
case ACPI_HEST_TYPE_AER_ROOT_PORT:
case ACPI_HEST_TYPE_AER_ENDPOINT:
case ACPI_HEST_TYPE_AER_BRIDGE:
p += parse_acpi_hest_aer(p, hdr->type, pci, &firmware_first);
break;
case ACPI_HEST_TYPE_GENERIC_ERROR:
p += parse_acpi_hest_generic(p);
break;
/* These should never appear either */
case ACPI_HEST_TYPE_RESERVED:
default:
if (!printed_reserved) {
printk(KERN_DEBUG PREFIX
"HEST Error Source list contains a reserved type (%d).\n", hdr->type);
printed_reserved = 1;
}
break;
}
}
return firmware_first;
}
int acpi_hest_firmware_first_pci(struct pci_dev *pci)
{
acpi_status status = AE_NOT_FOUND;
struct acpi_table_header *hest = NULL;
status = acpi_get_table(ACPI_SIG_HEST, 1, &hest);
if (ACPI_SUCCESS(status)) {
if (acpi_hest_firmware_first(hest, pci)) {
return 1;
}
}
return 0;
}
EXPORT_SYMBOL_GPL(acpi_hest_firmware_first_pci);

1
drivers/block/xen-blkfront.c
View file

@ -42,6 +42,7 @@
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <xen/xen.h>
#include <xen/xenbus.h>
#include <xen/grant_table.h>
#include <xen/events.h>

2
drivers/char/hvc_xen.c
View file

@ -25,6 +25,8 @@
#include <linux/types.h>
#include <asm/xen/hypervisor.h>
#include <xen/xen.h>
#include <xen/page.h>
#include <xen/events.h>
#include <xen/interface/io/console.h>

3
drivers/input/xen-kbdfront.c
View file

@ -21,7 +21,10 @@
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/input.h>
#include <asm/xen/hypervisor.h>
#include <xen/xen.h>
#include <xen/events.h>
#include <xen/page.h>
#include <xen/interface/io/fbif.h>

1
drivers/net/xen-netfront.c
View file

@ -42,6 +42,7 @@
#include <linux/mm.h>
#include <net/ip.h>
#include <xen/xen.h>
#include <xen/xenbus.h>
#include <xen/events.h>
#include <xen/page.h>

15
drivers/pci/Kconfig
View file

@ -27,10 +27,10 @@ config PCI_LEGACY
default y
help
Say Y here if you want to include support for the deprecated
pci_find_slot() and pci_find_device() APIs. Most drivers have
been converted over to using the proper hotplug APIs, so this
option serves to include/exclude only a few drivers that are
still using this API.
pci_find_device() API. Most drivers have been converted over
to using the proper hotplug APIs, so this option serves to
include/exclude only a few drivers that are still using this
API.
config PCI_DEBUG
bool "PCI Debugging"
@ -69,3 +69,10 @@ config PCI_IOV
physical resources.
If unsure, say N.
config PCI_IOAPIC
bool
depends on PCI
depends on ACPI
depends on HOTPLUG
default y

2
drivers/pci/Makefile
View file

@ -14,6 +14,8 @@ CFLAGS_legacy.o += -Wno-deprecated-declarations
# Build PCI Express stuff if needed
obj-$(CONFIG_PCIEPORTBUS) += pcie/
obj-$(CONFIG_PCI_IOAPIC) += ioapic.o
obj-$(CONFIG_HOTPLUG) += hotplug.o
# Build the PCI Hotplug drivers if we were asked to

7
drivers/pci/dmar.c
View file

@ -320,7 +320,7 @@ found:
for (bus = dev->bus; bus; bus = bus->parent) {
struct pci_dev *bridge = bus->self;
if (!bridge || !bridge->is_pcie ||
if (!bridge || !pci_is_pcie(bridge) ||
bridge->pcie_type == PCI_EXP_TYPE_PCI_BRIDGE)
return 0;
@ -645,8 +645,11 @@ void __init detect_intel_iommu(void)
"x2apic and Intr-remapping.\n");
#endif
#ifdef CONFIG_DMAR
if (ret && !no_iommu && !iommu_detected && !dmar_disabled)
if (ret && !no_iommu && !iommu_detected && !dmar_disabled) {
iommu_detected = 1;
/* Make sure ACS will be enabled */
pci_request_acs();
}
#endif
#ifdef CONFIG_X86
if (ret)

12
drivers/pci/hotplug/Makefile
View file

@ -6,18 +6,22 @@ obj-$(CONFIG_HOTPLUG_PCI) += pci_hotplug.o
obj-$(CONFIG_HOTPLUG_PCI_COMPAQ) += cpqphp.o
obj-$(CONFIG_HOTPLUG_PCI_IBM) += ibmphp.o
# pciehp should be linked before acpiphp in order to allow the native driver
# to attempt to bind first. We can then fall back to generic support.
# native drivers should be linked before acpiphp in order to allow the
# native driver to attempt to bind first. We can then fall back to
# generic support.
obj-$(CONFIG_HOTPLUG_PCI_PCIE) += pciehp.o
obj-$(CONFIG_HOTPLUG_PCI_ACPI) += acpiphp.o
obj-$(CONFIG_HOTPLUG_PCI_ACPI_IBM) += acpiphp_ibm.o
obj-$(CONFIG_HOTPLUG_PCI_CPCI_ZT5550) += cpcihp_zt5550.o
obj-$(CONFIG_HOTPLUG_PCI_CPCI_GENERIC) += cpcihp_generic.o
obj-$(CONFIG_HOTPLUG_PCI_SHPC) += shpchp.o
obj-$(CONFIG_HOTPLUG_PCI_RPA) += rpaphp.o
obj-$(CONFIG_HOTPLUG_PCI_RPA_DLPAR) += rpadlpar_io.o
obj-$(CONFIG_HOTPLUG_PCI_SGI) += sgi_hotplug.o
obj-$(CONFIG_HOTPLUG_PCI_ACPI) += acpiphp.o
# acpiphp_ibm extends acpiphp, so should be linked afterwards.
obj-$(CONFIG_HOTPLUG_PCI_ACPI_IBM) += acpiphp_ibm.o
# Link this last so it doesn't claim devices that have a real hotplug driver
obj-$(CONFIG_HOTPLUG_PCI_FAKE) += fakephp.o

5
drivers/pci/hotplug/acpi_pcihp.c
View file

@ -362,6 +362,8 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags)
status = acpi_pci_osc_control_set(handle, flags);
if (ACPI_SUCCESS(status))
goto got_one;
if (status == AE_SUPPORT)
goto no_control;
kfree(string.pointer);
string = (struct acpi_buffer){ ACPI_ALLOCATE_BUFFER, NULL };
}
@ -394,10 +396,9 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags)
if (ACPI_FAILURE(status))
break;
}
no_control:
dbg("Cannot get control of hotplug hardware for pci %s\n",
pci_name(pdev));
kfree(string.pointer);
return -ENODEV;
got_one:

6
drivers/pci/hotplug/acpiphp.h
View file

@ -146,12 +146,6 @@ struct acpiphp_attention_info
struct module *owner;
};
struct acpiphp_ioapic {
struct pci_dev *dev;
u32 gsi_base;
struct list_head list;
};
/* PCI bus bridge HID */
#define ACPI_PCI_HOST_HID "PNP0A03"

248
drivers/pci/hotplug/acpiphp_glue.c
View file

@ -52,8 +52,6 @@
#include "acpiphp.h"
static LIST_HEAD(bridge_list);
static LIST_HEAD(ioapic_list);
static DEFINE_SPINLOCK(ioapic_list_lock);
#define MY_NAME "acpiphp_glue"
@ -311,17 +309,13 @@ static void init_bridge_misc(struct acpiphp_bridge *bridge)
/* find acpiphp_func from acpiphp_bridge */
static struct acpiphp_func *acpiphp_bridge_handle_to_function(acpi_handle handle)
{
struct list_head *node, *l;
struct acpiphp_bridge *bridge;
struct acpiphp_slot *slot;
struct acpiphp_func *func;
list_for_each(node, &bridge_list) {
bridge = list_entry(node, struct acpiphp_bridge, list);
list_for_each_entry(bridge, &bridge_list, list) {
for (slot = bridge->slots; slot; slot = slot->next) {
list_for_each(l, &slot->funcs) {
func = list_entry(l, struct acpiphp_func,
sibling);
list_for_each_entry(func, &slot->funcs, sibling) {
if (func->handle == handle)
return func;
}
@ -495,21 +489,19 @@ static int add_bridge(acpi_handle handle)
static struct acpiphp_bridge *acpiphp_handle_to_bridge(acpi_handle handle)
{
struct list_head *head;
list_for_each(head, &bridge_list) {
struct acpiphp_bridge *bridge = list_entry(head,
struct acpiphp_bridge, list);
struct acpiphp_bridge *bridge;
list_for_each_entry(bridge, &bridge_list, list)
if (bridge->handle == handle)
return bridge;
}
return NULL;
}
static void cleanup_bridge(struct acpiphp_bridge *bridge)
{
struct list_head *list, *tmp;
struct acpiphp_slot *slot;
struct acpiphp_slot *slot, *next;
struct acpiphp_func *func, *tmp;
acpi_status status;
acpi_handle handle = bridge->handle;
@ -530,10 +522,8 @@ static void cleanup_bridge(struct acpiphp_bridge *bridge)
slot = bridge->slots;
while (slot) {
struct acpiphp_slot *next = slot->next;
list_for_each_safe (list, tmp, &slot->funcs) {
struct acpiphp_func *func;
func = list_entry(list, struct acpiphp_func, sibling);
next = slot->next;
list_for_each_entry_safe(func, tmp, &slot->funcs, sibling) {
if (is_dock_device(func->handle)) {
unregister_hotplug_dock_device(func->handle);
unregister_dock_notifier(&func->nb);
@ -545,7 +535,7 @@ static void cleanup_bridge(struct acpiphp_bridge *bridge)
if (ACPI_FAILURE(status))
err("failed to remove notify handler\n");
}
list_del(list);
list_del(&func->sibling);
kfree(func);
}
acpiphp_unregister_hotplug_slot(slot);
@ -606,204 +596,17 @@ static void remove_bridge(acpi_handle handle)
handle_hotplug_event_bridge);
}
static struct pci_dev * get_apic_pci_info(acpi_handle handle)
{
struct pci_dev *dev;
dev = acpi_get_pci_dev(handle);
if (!dev)
return NULL;
if ((dev->class != PCI_CLASS_SYSTEM_PIC_IOAPIC) &&
(dev->class != PCI_CLASS_SYSTEM_PIC_IOXAPIC))
{
pci_dev_put(dev);
return NULL;
}
return dev;
}
static int get_gsi_base(acpi_handle handle, u32 *gsi_base)
{
acpi_status status;
int result = -1;
unsigned long long gsb;
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
union acpi_object *obj;
void *table;
status = acpi_evaluate_integer(handle, "_GSB", NULL, &gsb);
if (ACPI_SUCCESS(status)) {
*gsi_base = (u32)gsb;
return 0;
}
status = acpi_evaluate_object(handle, "_MAT", NULL, &buffer);
if (ACPI_FAILURE(status) || !buffer.length || !buffer.pointer)
return -1;
obj = buffer.pointer;
if (obj->type != ACPI_TYPE_BUFFER)
goto out;
table = obj->buffer.pointer;
switch (((struct acpi_subtable_header *)table)->type) {
case ACPI_MADT_TYPE_IO_SAPIC:
*gsi_base = ((struct acpi_madt_io_sapic *)table)->global_irq_base;
result = 0;
break;
case ACPI_MADT_TYPE_IO_APIC:
*gsi_base = ((struct acpi_madt_io_apic *)table)->global_irq_base;
result = 0;
break;
default:
break;
}
out:
kfree(buffer.pointer);
return result;
}
static acpi_status
ioapic_add(acpi_handle handle, u32 lvl, void *context, void **rv)
{
acpi_status status;
unsigned long long sta;
acpi_handle tmp;
struct pci_dev *pdev;
u32 gsi_base;
u64 phys_addr;
struct acpiphp_ioapic *ioapic;
/* Evaluate _STA if present */
status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
if (ACPI_SUCCESS(status) && sta != ACPI_STA_ALL)
return AE_CTRL_DEPTH;
/* Scan only PCI bus scope */
status = acpi_get_handle(handle, "_HID", &tmp);
if (ACPI_SUCCESS(status))
return AE_CTRL_DEPTH;
if (get_gsi_base(handle, &gsi_base))
return AE_OK;
ioapic = kmalloc(sizeof(*ioapic), GFP_KERNEL);
if (!ioapic)
return AE_NO_MEMORY;
pdev = get_apic_pci_info(handle);
if (!pdev)
goto exit_kfree;
if (pci_enable_device(pdev))
goto exit_pci_dev_put;
pci_set_master(pdev);
if (pci_request_region(pdev, 0, "I/O APIC(acpiphp)"))
goto exit_pci_disable_device;
phys_addr = pci_resource_start(pdev, 0);
if (acpi_register_ioapic(handle, phys_addr, gsi_base))
goto exit_pci_release_region;
ioapic->gsi_base = gsi_base;
ioapic->dev = pdev;
spin_lock(&ioapic_list_lock);
list_add_tail(&ioapic->list, &ioapic_list);
spin_unlock(&ioapic_list_lock);
return AE_OK;
exit_pci_release_region:
pci_release_region(pdev, 0);
exit_pci_disable_device:
pci_disable_device(pdev);
exit_pci_dev_put:
pci_dev_put(pdev);
exit_kfree:
kfree(ioapic);
return AE_OK;
}
static acpi_status
ioapic_remove(acpi_handle handle, u32 lvl, void *context, void **rv)
{
acpi_status status;
unsigned long long sta;
acpi_handle tmp;
u32 gsi_base;
struct acpiphp_ioapic *pos, *n, *ioapic = NULL;
/* Evaluate _STA if present */
status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
if (ACPI_SUCCESS(status) && sta != ACPI_STA_ALL)
return AE_CTRL_DEPTH;
/* Scan only PCI bus scope */
status = acpi_get_handle(handle, "_HID", &tmp);
if (ACPI_SUCCESS(status))
return AE_CTRL_DEPTH;
if (get_gsi_base(handle, &gsi_base))
return AE_OK;
acpi_unregister_ioapic(handle, gsi_base);
spin_lock(&ioapic_list_lock);
list_for_each_entry_safe(pos, n, &ioapic_list, list) {
if (pos->gsi_base != gsi_base)
continue;
ioapic = pos;
list_del(&ioapic->list);
break;
}
spin_unlock(&ioapic_list_lock);
if (!ioapic)
return AE_OK;
pci_release_region(ioapic->dev, 0);
pci_disable_device(ioapic->dev);
pci_dev_put(ioapic->dev);
kfree(ioapic);
return AE_OK;
}
static int acpiphp_configure_ioapics(acpi_handle handle)
{
ioapic_add(handle, 0, NULL, NULL);
acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
ACPI_UINT32_MAX, ioapic_add, NULL, NULL, NULL);
return 0;
}
static int acpiphp_unconfigure_ioapics(acpi_handle handle)
{
ioapic_remove(handle, 0, NULL, NULL);
acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
ACPI_UINT32_MAX, ioapic_remove, NULL, NULL, NULL);
return 0;
}
static int power_on_slot(struct acpiphp_slot *slot)
{
acpi_status status;
struct acpiphp_func *func;
struct list_head *l;
int retval = 0;
/* if already enabled, just skip */
if (slot->flags & SLOT_POWEREDON)
goto err_exit;
list_for_each (l, &slot->funcs) {
func = list_entry(l, struct acpiphp_func, sibling);
list_for_each_entry(func, &slot->funcs, sibling) {
if (func->flags & FUNC_HAS_PS0) {
dbg("%s: executing _PS0\n", __func__);
status = acpi_evaluate_object(func->handle, "_PS0", NULL, NULL);
@ -829,7 +632,6 @@ static int power_off_slot(struct acpiphp_slot *slot)
{
acpi_status status;
struct acpiphp_func *func;
struct list_head *l;
int retval = 0;
@ -837,9 +639,7 @@ static int power_off_slot(struct acpiphp_slot *slot)
if ((slot->flags & SLOT_POWEREDON) == 0)
goto err_exit;
list_for_each (l, &slot->funcs) {
func = list_entry(l, struct acpiphp_func, sibling);
list_for_each_entry(func, &slot->funcs, sibling) {
if (func->flags & FUNC_HAS_PS3) {
status = acpi_evaluate_object(func->handle, "_PS3", NULL, NULL);
if (ACPI_FAILURE(status)) {
@ -966,7 +766,6 @@ static int __ref enable_device(struct acpiphp_slot *slot)
{
struct pci_dev *dev;
struct pci_bus *bus = slot->bridge->pci_bus;
struct list_head *l;
struct acpiphp_func *func;
int retval = 0;
int num, max, pass;
@ -1006,21 +805,16 @@ static int __ref enable_device(struct acpiphp_slot *slot)
}
}
list_for_each (l, &slot->funcs) {
func = list_entry(l, struct acpiphp_func, sibling);
list_for_each_entry(func, &slot->funcs, sibling)
acpiphp_bus_add(func);
}
pci_bus_assign_resources(bus);
acpiphp_sanitize_bus(bus);
acpiphp_set_hpp_values(bus);
list_for_each_entry(func, &slot->funcs, sibling)
acpiphp_configure_ioapics(func->handle);
pci_enable_bridges(bus);
pci_bus_add_devices(bus);
list_for_each (l, &slot->funcs) {
func = list_entry(l, struct acpiphp_func, sibling);
list_for_each_entry(func, &slot->funcs, sibling) {
dev = pci_get_slot(bus, PCI_DEVFN(slot->device,
func->function));
if (!dev)
@ -1091,7 +885,6 @@ static int disable_device(struct acpiphp_slot *slot)
}
list_for_each_entry(func, &slot->funcs, sibling) {
acpiphp_unconfigure_ioapics(func->handle);
acpiphp_bus_trim(func->handle);
}
@ -1119,12 +912,9 @@ static unsigned int get_slot_status(struct acpiphp_slot *slot)
acpi_status status;
unsigned long long sta = 0;
u32 dvid;
struct list_head *l;
struct acpiphp_func *func;
list_for_each (l, &slot->funcs) {
func = list_entry(l, struct acpiphp_func, sibling);
list_for_each_entry(func, &slot->funcs, sibling) {
if (func->flags & FUNC_HAS_STA) {
status = acpi_evaluate_integer(func->handle, "_STA", NULL, &sta);
if (ACPI_SUCCESS(status) && sta)
@ -1152,13 +942,10 @@ int acpiphp_eject_slot(struct acpiphp_slot *slot)
{
acpi_status status;
struct acpiphp_func *func;
struct list_head *l;
struct acpi_object_list arg_list;
union acpi_object arg;
list_for_each (l, &slot->funcs) {
func = list_entry(l, struct acpiphp_func, sibling);
list_for_each_entry(func, &slot->funcs, sibling) {
/* We don't want to call _EJ0 on non-existing functions. */
if ((func->flags & FUNC_HAS_EJ0)) {
/* _EJ0 method take one argument */
@ -1275,7 +1062,6 @@ static int acpiphp_configure_bridge (acpi_handle handle)
acpiphp_sanitize_bus(bus);
acpiphp_set_hpp_values(bus);
pci_enable_bridges(bus);
acpiphp_configure_ioapics(handle);
return 0;
}
@ -1542,7 +1328,7 @@ int __init acpiphp_get_num_slots(void)
struct acpiphp_bridge *bridge;
int num_slots = 0;
list_for_each_entry (bridge, &bridge_list, list) {
list_for_each_entry(bridge, &bridge_list, list) {
dbg("Bus %04x:%02x has %d slot%s\n",
pci_domain_nr(bridge->pci_bus),
bridge->pci_bus->number, bridge->nr_slots,

3
drivers/pci/hotplug/ibmphp_hpc.c
View file

@ -890,7 +890,7 @@ static int poll_hpc(void *data)
msleep(POLL_INTERVAL_SEC * 1000);
if (kthread_should_stop())
break;
goto out_sleep;
down (&semOperations);
@ -904,6 +904,7 @@ static int poll_hpc(void *data)
/* give up the hardware semaphore */
up (&semOperations);
/* sleep for a short time just for good measure */
out_sleep:
msleep(100);
}
up (&sem_exit);

22
drivers/pci/hotplug/pci_hotplug_core.c
View file

@ -68,26 +68,26 @@ static DEFINE_MUTEX(pci_hp_mutex);
static char *pci_bus_speed_strings[] = {
"33 MHz PCI", /* 0x00 */
"66 MHz PCI", /* 0x01 */
"66 MHz PCIX", /* 0x02 */
"100 MHz PCIX", /* 0x03 */
"133 MHz PCIX", /* 0x04 */
"66 MHz PCI-X", /* 0x02 */
"100 MHz PCI-X", /* 0x03 */
"133 MHz PCI-X", /* 0x04 */
NULL, /* 0x05 */
NULL, /* 0x06 */
NULL, /* 0x07 */
NULL, /* 0x08 */
"66 MHz PCIX 266", /* 0x09 */
"100 MHz PCIX 266", /* 0x0a */
"133 MHz PCIX 266", /* 0x0b */
"66 MHz PCI-X 266", /* 0x09 */
"100 MHz PCI-X 266", /* 0x0a */
"133 MHz PCI-X 266", /* 0x0b */
NULL, /* 0x0c */
NULL, /* 0x0d */
NULL, /* 0x0e */
NULL, /* 0x0f */
NULL, /* 0x10 */
"66 MHz PCIX 533", /* 0x11 */
"100 MHz PCIX 533", /* 0x12 */
"133 MHz PCIX 533", /* 0x13 */
"2.5 GT/s PCI-E", /* 0x14 */
"5.0 GT/s PCI-E", /* 0x15 */
"66 MHz PCI-X 533", /* 0x11 */
"100 MHz PCI-X 533", /* 0x12 */
"133 MHz PCI-X 533", /* 0x13 */
"2.5 GT/s PCIe", /* 0x14 */
"5.0 GT/s PCIe", /* 0x15 */
};
#ifdef CONFIG_HOTPLUG_PCI_CPCI

1
drivers/pci/hotplug/pciehp.h
View file

@ -91,7 +91,6 @@ struct controller {
struct slot *slot;
wait_queue_head_t queue; /* sleep & wake process */
u32 slot_cap;
u8 cap_base;
struct timer_list poll_timer;
unsigned int cmd_busy:1;
unsigned int no_cmd_complete:1;

3
drivers/pci/hotplug/pciehp_acpi.c
View file

@ -87,7 +87,8 @@ static int __init dummy_probe(struct pcie_device *dev)
/* Note: pciehp_detect_mode != PCIEHP_DETECT_ACPI here */
if (pciehp_get_hp_hw_control_from_firmware(pdev))
return -ENODEV;
if (!(pos = pci_find_capability(pdev, PCI_CAP_ID_EXP)))
pos = pci_pcie_cap(pdev);
if (!pos)
return -ENODEV;
pci_read_config_dword(pdev, pos + PCI_EXP_SLTCAP, &slot_cap);
slot = kzalloc(sizeof(*slot), GFP_KERNEL);

117
drivers/pci/hotplug/pciehp_core.c
View file

@ -72,18 +72,6 @@ static int get_adapter_status (struct hotplug_slot *slot, u8 *value);
static int get_max_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
static int get_cur_bus_speed (struct hotplug_slot *slot, enum pci_bus_speed *value);
static struct hotplug_slot_ops pciehp_hotplug_slot_ops = {
.set_attention_status = set_attention_status,
.enable_slot = enable_slot,
.disable_slot = disable_slot,
.get_power_status = get_power_status,
.get_attention_status = get_attention_status,
.get_latch_status = get_latch_status,
.get_adapter_status = get_adapter_status,
.get_max_bus_speed = get_max_bus_speed,
.get_cur_bus_speed = get_cur_bus_speed,
};
/**
* release_slot - free up the memory used by a slot
* @hotplug_slot: slot to free
@ -95,6 +83,7 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, hotplug_slot_name(hotplug_slot));
kfree(hotplug_slot->ops);
kfree(hotplug_slot->info);
kfree(hotplug_slot);
}
@ -104,6 +93,7 @@ static int init_slot(struct controller *ctrl)
struct slot *slot = ctrl->slot;
struct hotplug_slot *hotplug = NULL;
struct hotplug_slot_info *info = NULL;
struct hotplug_slot_ops *ops = NULL;
char name[SLOT_NAME_SIZE];
int retval = -ENOMEM;
@ -115,11 +105,28 @@ static int init_slot(struct controller *ctrl)
if (!info)
goto out;
/* Setup hotplug slot ops */
ops = kzalloc(sizeof(*ops), GFP_KERNEL);
if (!ops)
goto out;
ops->enable_slot = enable_slot;
ops->disable_slot = disable_slot;
ops->get_power_status = get_power_status;
ops->get_adapter_status = get_adapter_status;
ops->get_max_bus_speed = get_max_bus_speed;
ops->get_cur_bus_speed = get_cur_bus_speed;
if (MRL_SENS(ctrl))
ops->get_latch_status = get_latch_status;
if (ATTN_LED(ctrl)) {
ops->get_attention_status = get_attention_status;
ops->set_attention_status = set_attention_status;
}
/* register this slot with the hotplug pci core */
hotplug->info = info;
hotplug->private = slot;
hotplug->release = &release_slot;
hotplug->ops = &pciehp_hotplug_slot_ops;
hotplug->ops = ops;
slot->hotplug_slot = hotplug;
snprintf(name, SLOT_NAME_SIZE, "%u", PSN(ctrl));
@ -128,17 +135,12 @@ static int init_slot(struct controller *ctrl)
ctrl->pcie->port->subordinate->number, PSN(ctrl));
retval = pci_hp_register(hotplug,
ctrl->pcie->port->subordinate, 0, name);
if (retval) {
if (retval)
ctrl_err(ctrl,
"pci_hp_register failed with error %d\n", retval);
goto out;
}
get_power_status(hotplug, &info->power_status);
get_attention_status(hotplug, &info->attention_status);
get_latch_status(hotplug, &info->latch_status);
get_adapter_status(hotplug, &info->adapter_status);
out:
if (retval) {
kfree(ops);
kfree(info);
kfree(hotplug);
}
@ -160,12 +162,7 @@ static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status)
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
hotplug_slot->info->attention_status = status;
if (ATTN_LED(slot->ctrl))
pciehp_set_attention_status(slot, status);
return 0;
return pciehp_set_attention_status(slot, status);
}
@ -193,92 +190,62 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
struct slot *slot = hotplug_slot->private;
int retval;
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = pciehp_get_power_status(slot, value);
if (retval < 0)
*value = hotplug_slot->info->power_status;
return 0;
return pciehp_get_power_status(slot, value);
}
static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
struct slot *slot = hotplug_slot->private;
int retval;
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = pciehp_get_attention_status(slot, value);
if (retval < 0)
*value = hotplug_slot->info->attention_status;
return 0;
return pciehp_get_attention_status(slot, value);
}
static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
struct slot *slot = hotplug_slot->private;
int retval;
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = pciehp_get_latch_status(slot, value);
if (retval < 0)
*value = hotplug_slot->info->latch_status;
return 0;
return pciehp_get_latch_status(slot, value);
}
static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
{
struct slot *slot = hotplug_slot->private;
int retval;
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = pciehp_get_adapter_status(slot, value);
if (retval < 0)
*value = hotplug_slot->info->adapter_status;
return 0;
return pciehp_get_adapter_status(slot, value);
}
static int get_max_bus_speed(struct hotplug_slot *hotplug_slot,
enum pci_bus_speed *value)
{
struct slot *slot = hotplug_slot->private;
int retval;
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = pciehp_get_max_link_speed(slot, value);
if (retval < 0)
*value = PCI_SPEED_UNKNOWN;
return 0;
return pciehp_get_max_link_speed(slot, value);
}
static int get_cur_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_speed *value)
{
struct slot *slot = hotplug_slot->private;
int retval;
ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
__func__, slot_name(slot));
retval = pciehp_get_cur_link_speed(slot, value);
if (retval < 0)
*value = PCI_SPEED_UNKNOWN;
return 0;
return pciehp_get_cur_link_speed(slot, value);
}
static int pciehp_probe(struct pcie_device *dev)
@ -286,14 +253,13 @@ static int pciehp_probe(struct pcie_device *dev)
int rc;
struct controller *ctrl;
struct slot *slot;
u8 value;
struct pci_dev *pdev = dev->port;
u8 occupied, poweron;
if (pciehp_force)
dev_info(&dev->device,
"Bypassing BIOS check for pciehp use on %s\n",
pci_name(pdev));
else if (pciehp_get_hp_hw_control_from_firmware(pdev))
pci_name(dev->port));
else if (pciehp_get_hp_hw_control_from_firmware(dev->port))
goto err_out_none;
ctrl = pcie_init(dev);
@ -318,23 +284,18 @@ static int pciehp_probe(struct pcie_device *dev)
rc = pcie_init_notification(ctrl);
if (rc) {
ctrl_err(ctrl, "Notification initialization failed\n");
goto err_out_release_ctlr;
goto err_out_free_ctrl_slot;
}
/* Check if slot is occupied */
slot = ctrl->slot;
pciehp_get_adapter_status(slot, &value);
if (value) {
if (pciehp_force)
pciehp_get_adapter_status(slot, &occupied);
pciehp_get_power_status(slot, &poweron);
if (occupied && pciehp_force)
pciehp_enable_slot(slot);
} else {
/* Power off slot if not occupied */
if (POWER_CTRL(ctrl)) {
rc = pciehp_power_off_slot(slot);
if (rc)
goto err_out_free_ctrl_slot;
}
}
/* If empty slot's power status is on, turn power off */
if (!occupied && poweron && POWER_CTRL(ctrl))
pciehp_power_off_slot(slot);
return 0;

53
drivers/pci/hotplug/pciehp_ctrl.c
View file

@ -142,23 +142,9 @@ u8 pciehp_handle_power_fault(struct slot *p_slot)
/* power fault */
ctrl_dbg(ctrl, "Power fault interrupt received\n");
if (!pciehp_query_power_fault(p_slot)) {
/*
* power fault Cleared
*/
ctrl_info(ctrl, "Power fault cleared on Slot(%s)\n",
slot_name(p_slot));
event_type = INT_POWER_FAULT_CLEAR;
} else {
/*
* power fault
*/
ctrl_info(ctrl, "Power fault on Slot(%s)\n", slot_name(p_slot));
ctrl_err(ctrl, "Power fault on slot %s\n", slot_name(p_slot));
event_type = INT_POWER_FAULT;
ctrl_info(ctrl, "Power fault bit %x set\n", 0);
}
queue_interrupt_event(p_slot, event_type);
return 1;
@ -224,13 +210,12 @@ static int board_added(struct slot *p_slot)
retval = pciehp_check_link_status(ctrl);
if (retval) {
ctrl_err(ctrl, "Failed to check link status\n");
set_slot_off(ctrl, p_slot);
return retval;
goto err_exit;
}
/* Check for a power fault */
if (pciehp_query_power_fault(p_slot)) {
ctrl_dbg(ctrl, "Power fault detected\n");
if (ctrl->power_fault_detected || pciehp_query_power_fault(p_slot)) {
ctrl_err(ctrl, "Power fault on slot %s\n", slot_name(p_slot));
retval = -EIO;
goto err_exit;
}
@ -363,25 +348,6 @@ void pciehp_queue_pushbutton_work(struct work_struct *work)
mutex_unlock(&p_slot->lock);
}
static int update_slot_info(struct slot *slot)
{
struct hotplug_slot_info *info;
int result;
info = kmalloc(sizeof(*info), GFP_KERNEL);
if (!info)
return -ENOMEM;
pciehp_get_power_status(slot, &info->power_status);
pciehp_get_attention_status(slot, &info->attention_status);
pciehp_get_latch_status(slot, &info->latch_status);
pciehp_get_adapter_status(slot, &info->adapter_status);
result = pci_hp_change_slot_info(slot->hotplug_slot, info);
kfree (info);
return result;
}
/*
* Note: This function must be called with slot->lock held
*/
@ -442,7 +408,6 @@ static void handle_button_press_event(struct slot *p_slot)
* to hot-add or hot-remove is undergoing
*/
ctrl_info(ctrl, "Button ignore on Slot(%s)\n", slot_name(p_slot));
update_slot_info(p_slot);
break;
default:
ctrl_warn(ctrl, "Not a valid state\n");
@ -500,11 +465,9 @@ static void interrupt_event_handler(struct work_struct *work)
if (!HP_SUPR_RM(ctrl))
break;
ctrl_dbg(ctrl, "Surprise Removal\n");
update_slot_info(p_slot);
handle_surprise_event(p_slot);
break;
default:
update_slot_info(p_slot);
break;
}
mutex_unlock(&p_slot->lock);
@ -547,9 +510,6 @@ int pciehp_enable_slot(struct slot *p_slot)
if (rc) {
pciehp_get_latch_status(p_slot, &getstatus);
}
update_slot_info(p_slot);
return rc;
}
@ -590,10 +550,7 @@ int pciehp_disable_slot(struct slot *p_slot)
}
}
ret = remove_board(p_slot);
update_slot_info(p_slot);
return ret;
return remove_board(p_slot);
}
int pciehp_sysfs_enable_slot(struct slot *p_slot)

135
drivers/pci/hotplug/pciehp_hpc.c
View file

@ -45,25 +45,25 @@ static atomic_t pciehp_num_controllers = ATOMIC_INIT(0);
static inline int pciehp_readw(struct controller *ctrl, int reg, u16 *value)
{
struct pci_dev *dev = ctrl->pcie->port;
return pci_read_config_word(dev, ctrl->cap_base + reg, value);
return pci_read_config_word(dev, pci_pcie_cap(dev) + reg, value);
}
static inline int pciehp_readl(struct controller *ctrl, int reg, u32 *value)
{
struct pci_dev *dev = ctrl->pcie->port;
return pci_read_config_dword(dev, ctrl->cap_base + reg, value);
return pci_read_config_dword(dev, pci_pcie_cap(dev) + reg, value);
}
static inline int pciehp_writew(struct controller *ctrl, int reg, u16 value)
{
struct pci_dev *dev = ctrl->pcie->port;
return pci_write_config_word(dev, ctrl->cap_base + reg, value);
return pci_write_config_word(dev, pci_pcie_cap(dev) + reg, value);
}
static inline int pciehp_writel(struct controller *ctrl, int reg, u32 value)
{
struct pci_dev *dev = ctrl->pcie->port;
return pci_write_config_dword(dev, ctrl->cap_base + reg, value);
return pci_write_config_dword(dev, pci_pcie_cap(dev) + reg, value);
}
/* Power Control Command */
@ -318,8 +318,8 @@ int pciehp_get_attention_status(struct slot *slot, u8 *status)
return retval;
}
ctrl_dbg(ctrl, "%s: SLOTCTRL %x, value read %x\n",
__func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_ctrl);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x, value read %x\n", __func__,
pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_ctrl);
atten_led_state = (slot_ctrl & PCI_EXP_SLTCTL_AIC) >> 6;
@ -356,8 +356,8 @@ int pciehp_get_power_status(struct slot *slot, u8 *status)
ctrl_err(ctrl, "%s: Cannot read SLOTCTRL register\n", __func__);
return retval;
}
ctrl_dbg(ctrl, "%s: SLOTCTRL %x value read %x\n",
__func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_ctrl);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x value read %x\n", __func__,
pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_ctrl);
pwr_state = (slot_ctrl & PCI_EXP_SLTCTL_PCC) >> 10;
@ -427,7 +427,6 @@ int pciehp_set_attention_status(struct slot *slot, u8 value)
struct controller *ctrl = slot->ctrl;
u16 slot_cmd;
u16 cmd_mask;
int rc;
cmd_mask = PCI_EXP_SLTCTL_AIC;
switch (value) {
@ -441,13 +440,11 @@ int pciehp_set_attention_status(struct slot *slot, u8 value)
slot_cmd = 0x0080;
break;
default:
return -1;
return -EINVAL;
}
rc = pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
__func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
return rc;
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd);
return pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
}
void pciehp_green_led_on(struct slot *slot)
@ -459,8 +456,8 @@ void pciehp_green_led_on(struct slot *slot)
slot_cmd = 0x0100;
cmd_mask = PCI_EXP_SLTCTL_PIC;
pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
__func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd);
}
void pciehp_green_led_off(struct slot *slot)
@ -472,8 +469,8 @@ void pciehp_green_led_off(struct slot *slot)
slot_cmd = 0x0300;
cmd_mask = PCI_EXP_SLTCTL_PIC;
pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
__func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd);
}
void pciehp_green_led_blink(struct slot *slot)
@ -485,8 +482,8 @@ void pciehp_green_led_blink(struct slot *slot)
slot_cmd = 0x0200;
cmd_mask = PCI_EXP_SLTCTL_PIC;
pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
__func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd);
}
int pciehp_power_on_slot(struct slot * slot)
@ -514,97 +511,38 @@ int pciehp_power_on_slot(struct slot * slot)
return retval;
}
}
ctrl->power_fault_detected = 0;
slot_cmd = POWER_ON;
cmd_mask = PCI_EXP_SLTCTL_PCC;
if (!pciehp_poll_mode) {
/* Enable power fault detection turned off at power off time */
slot_cmd |= PCI_EXP_SLTCTL_PFDE;
cmd_mask |= PCI_EXP_SLTCTL_PFDE;
}
retval = pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
if (retval) {
ctrl_err(ctrl, "Write %x command failed!\n", slot_cmd);
return retval;
}
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
__func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd);
ctrl->power_fault_detected = 0;
return retval;
}
static inline int pcie_mask_bad_dllp(struct controller *ctrl)
{
struct pci_dev *dev = ctrl->pcie->port;
int pos;
u32 reg;
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
if (!pos)
return 0;
pci_read_config_dword(dev, pos + PCI_ERR_COR_MASK, &reg);
if (reg & PCI_ERR_COR_BAD_DLLP)
return 0;
reg |= PCI_ERR_COR_BAD_DLLP;
pci_write_config_dword(dev, pos + PCI_ERR_COR_MASK, reg);
return 1;
}
static inline void pcie_unmask_bad_dllp(struct controller *ctrl)
{
struct pci_dev *dev = ctrl->pcie->port;
u32 reg;
int pos;
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
if (!pos)
return;
pci_read_config_dword(dev, pos + PCI_ERR_COR_MASK, &reg);
if (!(reg & PCI_ERR_COR_BAD_DLLP))
return;
reg &= ~PCI_ERR_COR_BAD_DLLP;
pci_write_config_dword(dev, pos + PCI_ERR_COR_MASK, reg);
}
int pciehp_power_off_slot(struct slot * slot)
{
struct controller *ctrl = slot->ctrl;
u16 slot_cmd;
u16 cmd_mask;
int retval = 0;
int changed;
/*
* Set Bad DLLP Mask bit in Correctable Error Mask
* Register. This is the workaround against Bad DLLP error
* that sometimes happens during turning power off the slot
* which conforms to PCI Express 1.0a spec.
*/
changed = pcie_mask_bad_dllp(ctrl);
int retval;
slot_cmd = POWER_OFF;
cmd_mask = PCI_EXP_SLTCTL_PCC;
if (!pciehp_poll_mode) {
/* Disable power fault detection */
slot_cmd &= ~PCI_EXP_SLTCTL_PFDE;
cmd_mask |= PCI_EXP_SLTCTL_PFDE;
}
retval = pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
if (retval) {
ctrl_err(ctrl, "Write command failed!\n");
retval = -1;
goto out;
}
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n",
__func__, ctrl->cap_base + PCI_EXP_SLTCTL, slot_cmd);
out:
if (changed)
pcie_unmask_bad_dllp(ctrl);
return retval;
}
ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd);
return 0;
}
static irqreturn_t pcie_isr(int irq, void *dev_id)
@ -840,11 +778,19 @@ int pcie_enable_notification(struct controller *ctrl)
{
u16 cmd, mask;
/*
* TBD: Power fault detected software notification support.
*
* Power fault detected software notification is not enabled
* now, because it caused power fault detected interrupt storm
* on some machines. On those machines, power fault detected
* bit in the slot status register was set again immediately
* when it is cleared in the interrupt service routine, and
* next power fault detected interrupt was notified again.
*/
cmd = PCI_EXP_SLTCTL_PDCE;
if (ATTN_BUTTN(ctrl))
cmd |= PCI_EXP_SLTCTL_ABPE;
if (POWER_CTRL(ctrl))
cmd |= PCI_EXP_SLTCTL_PFDE;
if (MRL_SENS(ctrl))
cmd |= PCI_EXP_SLTCTL_MRLSCE;
if (!pciehp_poll_mode)
@ -866,7 +812,8 @@ static void pcie_disable_notification(struct controller *ctrl)
u16 mask;
mask = (PCI_EXP_SLTCTL_PDCE | PCI_EXP_SLTCTL_ABPE |
PCI_EXP_SLTCTL_MRLSCE | PCI_EXP_SLTCTL_PFDE |
PCI_EXP_SLTCTL_HPIE | PCI_EXP_SLTCTL_CCIE);
PCI_EXP_SLTCTL_HPIE | PCI_EXP_SLTCTL_CCIE |
PCI_EXP_SLTCTL_DLLSCE);
if (pcie_write_cmd(ctrl, 0, mask))
ctrl_warn(ctrl, "Cannot disable software notification\n");
}
@ -934,7 +881,8 @@ static inline void dbg_ctrl(struct controller *ctrl)
pdev->subsystem_device);
ctrl_info(ctrl, " Subsystem Vendor ID : 0x%04x\n",
pdev->subsystem_vendor);
ctrl_info(ctrl, " PCIe Cap offset : 0x%02x\n", ctrl->cap_base);
ctrl_info(ctrl, " PCIe Cap offset : 0x%02x\n",
pci_pcie_cap(pdev));
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
if (!pci_resource_len(pdev, i))
continue;
@ -978,8 +926,7 @@ struct controller *pcie_init(struct pcie_device *dev)
goto abort;
}
ctrl->pcie = dev;
ctrl->cap_base = pci_find_capability(pdev, PCI_CAP_ID_EXP);
if (!ctrl->cap_base) {
if (!pci_pcie_cap(pdev)) {
ctrl_err(ctrl, "Cannot find PCI Express capability\n");
goto abort_ctrl;
}

4
drivers/pci/hotplug/pcihp_slot.c
View file

@ -43,7 +43,7 @@ static void program_hpp_type0(struct pci_dev *dev, struct hpp_type0 *hpp)
* Perhaps we *should* use default settings for PCIe, but
* pciehp didn't, so we won't either.
*/
if (dev->is_pcie)
if (pci_is_pcie(dev))
return;
dev_info(&dev->dev, "using default PCI settings\n");
hpp = &pci_default_type0;
@ -102,7 +102,7 @@ static void program_hpp_type2(struct pci_dev *dev, struct hpp_type2 *hpp)
return;
/* Find PCI Express capability */
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(dev);
if (!pos)
return;

10
drivers/pci/intel-iommu.c
View file

@ -1611,7 +1611,7 @@ domain_context_mapping(struct dmar_domain *domain, struct pci_dev *pdev,
return ret;
parent = parent->bus->self;
}
if (tmp->is_pcie) /* this is a PCIE-to-PCI bridge */
if (pci_is_pcie(tmp)) /* this is a PCIE-to-PCI bridge */
return domain_context_mapping_one(domain,
pci_domain_nr(tmp->subordinate),
tmp->subordinate->number, 0,
@ -1651,7 +1651,7 @@ static int domain_context_mapped(struct pci_dev *pdev)
return ret;
parent = parent->bus->self;
}
if (tmp->is_pcie)
if (pci_is_pcie(tmp))
return device_context_mapped(iommu, tmp->subordinate->number,
0);
else
@ -1821,7 +1821,7 @@ static struct dmar_domain *get_domain_for_dev(struct pci_dev *pdev, int gaw)
dev_tmp = pci_find_upstream_pcie_bridge(pdev);
if (dev_tmp) {
if (dev_tmp->is_pcie) {
if (pci_is_pcie(dev_tmp)) {
bus = dev_tmp->subordinate->number;
devfn = 0;
} else {
@ -2182,7 +2182,7 @@ static int iommu_should_identity_map(struct pci_dev *pdev, int startup)
* the 1:1 domain, just in _case_ one of their siblings turns out
* not to be able to map all of memory.
*/
if (!pdev->is_pcie) {
if (!pci_is_pcie(pdev)) {
if (!pci_is_root_bus(pdev->bus))
return 0;
if (pdev->class >> 8 == PCI_CLASS_BRIDGE_PCI)
@ -3319,7 +3319,7 @@ static void iommu_detach_dependent_devices(struct intel_iommu *iommu,
parent->devfn);
parent = parent->bus->self;
}
if (tmp->is_pcie) /* this is a PCIE-to-PCI bridge */
if (pci_is_pcie(tmp)) /* this is a PCIE-to-PCI bridge */
iommu_detach_dev(iommu,
tmp->subordinate->number, 0);
else /* this is a legacy PCI bridge */

4
drivers/pci/intr_remapping.c
View file

@ -520,7 +520,7 @@ int set_msi_sid(struct irte *irte, struct pci_dev *dev)
return -1;
/* PCIe device or Root Complex integrated PCI device */
if (dev->is_pcie || !dev->bus->parent) {
if (pci_is_pcie(dev) || !dev->bus->parent) {
set_irte_sid(irte, SVT_VERIFY_SID_SQ, SQ_ALL_16,
(dev->bus->number << 8) | dev->devfn);
return 0;
@ -528,7 +528,7 @@ int set_msi_sid(struct irte *irte, struct pci_dev *dev)
bridge = pci_find_upstream_pcie_bridge(dev);
if (bridge) {
if (bridge->is_pcie) /* this is a PCIE-to-PCI/PCIX bridge */
if (pci_is_pcie(bridge))/* this is a PCIE-to-PCI/PCIX bridge */
set_irte_sid(irte, SVT_VERIFY_BUS, SQ_ALL_16,
(bridge->bus->number << 8) | dev->bus->number);
else /* this is a legacy PCI bridge */

127
drivers/pci/ioapic.c Normal file
View file

@ -0,0 +1,127 @@
/*
* IOAPIC/IOxAPIC/IOSAPIC driver
*
* Copyright (C) 2009 Fujitsu Limited.
* (c) Copyright 2009 Hewlett-Packard Development Company, L.P.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
* This driver manages PCI I/O APICs added by hotplug after boot. We try to
* claim all I/O APIC PCI devices, but those present at boot were registered
* when we parsed the ACPI MADT, so we'll fail when we try to re-register
* them.
*/
#include <linux/pci.h>
#include <linux/acpi.h>
#include <acpi/acpi_bus.h>
struct ioapic {
acpi_handle handle;
u32 gsi_base;
};
static int ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
{
acpi_handle handle;
acpi_status status;
unsigned long long gsb;
struct ioapic *ioapic;
u64 addr;
int ret;
char *type;
handle = DEVICE_ACPI_HANDLE(&dev->dev);
if (!handle)
return -EINVAL;
status = acpi_evaluate_integer(handle, "_GSB", NULL, &gsb);
if (ACPI_FAILURE(status))
return -EINVAL;
/*
* The previous code in acpiphp evaluated _MAT if _GSB failed, but
* ACPI spec 4.0 sec 6.2.2 requires _GSB for hot-pluggable I/O APICs.
*/
ioapic = kzalloc(sizeof(*ioapic), GFP_KERNEL);
if (!ioapic)
return -ENOMEM;
ioapic->handle = handle;
ioapic->gsi_base = (u32) gsb;
if (dev->class == PCI_CLASS_SYSTEM_PIC_IOAPIC)
type = "IOAPIC";
else
type = "IOxAPIC";
ret = pci_enable_device(dev);
if (ret < 0)
goto exit_free;
pci_set_master(dev);
if (pci_request_region(dev, 0, type))
goto exit_disable;
addr = pci_resource_start(dev, 0);
if (acpi_register_ioapic(ioapic->handle, addr, ioapic->gsi_base))
goto exit_release;
pci_set_drvdata(dev, ioapic);
dev_info(&dev->dev, "%s at %#llx, GSI %u\n", type, addr,
ioapic->gsi_base);
return 0;
exit_release:
pci_release_region(dev, 0);
exit_disable:
pci_disable_device(dev);
exit_free:
kfree(ioapic);
return -ENODEV;
}
static void ioapic_remove(struct pci_dev *dev)
{
struct ioapic *ioapic = pci_get_drvdata(dev);
acpi_unregister_ioapic(ioapic->handle, ioapic->gsi_base);
pci_release_region(dev, 0);
pci_disable_device(dev);
kfree(ioapic);
}
static struct pci_device_id ioapic_devices[] = {
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_SYSTEM_PIC_IOAPIC << 8, 0xffff00, },
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_SYSTEM_PIC_IOXAPIC << 8, 0xffff00, },
{ }
};
static struct pci_driver ioapic_driver = {
.name = "ioapic",
.id_table = ioapic_devices,
.probe = ioapic_probe,
.remove = __devexit_p(ioapic_remove),
};
static int __init ioapic_init(void)
{
return pci_register_driver(&ioapic_driver);
}
static void __exit ioapic_exit(void)
{
pci_unregister_driver(&ioapic_driver);
}
module_init(ioapic_init);
module_exit(ioapic_exit);

2
drivers/pci/iov.c
View file

@ -555,7 +555,7 @@ int pci_iov_init(struct pci_dev *dev)
{
int pos;
if (!dev->is_pcie)
if (!pci_is_pcie(dev))
return -ENODEV;
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV);

4
drivers/pci/pci-acpi.c
View file

@ -116,7 +116,7 @@ static void acpi_pci_propagate_wakeup_enable(struct pci_bus *bus, bool enable)
int ret;
ret = acpi_pm_device_sleep_wake(&bridge->dev, enable);
if (!ret || bridge->is_pcie)
if (!ret || pci_is_pcie(bridge))
return;
bus = bus->parent;
}
@ -131,7 +131,7 @@ static int acpi_pci_sleep_wake(struct pci_dev *dev, bool enable)
if (acpi_pci_can_wakeup(dev))
return acpi_pm_device_sleep_wake(&dev->dev, enable);
if (!dev->is_pcie)
if (!pci_is_pcie(dev))
acpi_pci_propagate_wakeup_enable(dev->bus, enable);
return 0;

25
drivers/pci/pci-sysfs.c
View file

@ -74,7 +74,11 @@ static ssize_t local_cpus_show(struct device *dev,
const struct cpumask *mask;
int len;
#ifdef CONFIG_NUMA
mask = cpumask_of_node(dev_to_node(dev));
#else
mask = cpumask_of_pcibus(to_pci_dev(dev)->bus);
#endif
len = cpumask_scnprintf(buf, PAGE_SIZE-2, mask);
buf[len++] = '\n';
buf[len] = '\0';
@ -88,7 +92,11 @@ static ssize_t local_cpulist_show(struct device *dev,
const struct cpumask *mask;
int len;
#ifdef CONFIG_NUMA
mask = cpumask_of_node(dev_to_node(dev));
#else
mask = cpumask_of_pcibus(to_pci_dev(dev)->bus);
#endif
len = cpulist_scnprintf(buf, PAGE_SIZE-2, mask);
buf[len++] = '\n';
buf[len] = '\0';
@ -175,6 +183,21 @@ numa_node_show(struct device *dev, struct device_attribute *attr, char *buf)
}
#endif
static ssize_t
dma_mask_bits_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct pci_dev *pdev = to_pci_dev(dev);
return sprintf (buf, "%d\n", fls64(pdev->dma_mask));
}
static ssize_t
consistent_dma_mask_bits_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
return sprintf (buf, "%d\n", fls64(dev->coherent_dma_mask));
}
static ssize_t
msi_bus_show(struct device *dev, struct device_attribute *attr, char *buf)
{
@ -306,6 +329,8 @@ struct device_attribute pci_dev_attrs[] = {
#ifdef CONFIG_NUMA
__ATTR_RO(numa_node),
#endif
__ATTR_RO(dma_mask_bits),
__ATTR_RO(consistent_dma_mask_bits),
__ATTR(enable, 0600, is_enabled_show, is_enabled_store),
__ATTR(broken_parity_status,(S_IRUGO|S_IWUSR),
broken_parity_status_show,broken_parity_status_store),

154
drivers/pci/pci.c
View file

@ -47,6 +47,15 @@ unsigned long pci_cardbus_mem_size = DEFAULT_CARDBUS_MEM_SIZE;
unsigned long pci_hotplug_io_size = DEFAULT_HOTPLUG_IO_SIZE;
unsigned long pci_hotplug_mem_size = DEFAULT_HOTPLUG_MEM_SIZE;
/*
* The default CLS is used if arch didn't set CLS explicitly and not
* all pci devices agree on the same value. Arch can override either
* the dfl or actual value as it sees fit. Don't forget this is
* measured in 32-bit words, not bytes.
*/
u8 pci_dfl_cache_line_size __devinitdata = L1_CACHE_BYTES >> 2;
u8 pci_cache_line_size;
/**
* pci_bus_max_busnr - returns maximum PCI bus number of given bus' children
* @bus: pointer to PCI bus structure to search
@ -373,8 +382,12 @@ pci_find_parent_resource(const struct pci_dev *dev, struct resource *res)
continue; /* Wrong type */
if (!((res->flags ^ r->flags) & IORESOURCE_PREFETCH))
return r; /* Exact match */
if ((res->flags & IORESOURCE_PREFETCH) && !(r->flags & IORESOURCE_PREFETCH))
best = r; /* Approximating prefetchable by non-prefetchable */
/* We can't insert a non-prefetch resource inside a prefetchable parent .. */
if (r->flags & IORESOURCE_PREFETCH)
continue;
/* .. but we can put a prefetchable resource inside a non-prefetchable one */
if (!best)
best = r;
}
return best;
}
@ -728,8 +741,8 @@ static int pci_save_pcie_state(struct pci_dev *dev)
u16 *cap;
u16 flags;
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
if (pos <= 0)
pos = pci_pcie_cap(dev);
if (!pos)
return 0;
save_state = pci_find_saved_cap(dev, PCI_CAP_ID_EXP);
@ -837,7 +850,7 @@ pci_save_state(struct pci_dev *dev)
int i;
/* XXX: 100% dword access ok here? */
for (i = 0; i < 16; i++)
pci_read_config_dword(dev, i * 4,&dev->saved_config_space[i]);
pci_read_config_dword(dev, i * 4, &dev->saved_config_space[i]);
dev->state_saved = true;
if ((i = pci_save_pcie_state(dev)) != 0)
return i;
@ -1202,7 +1215,7 @@ void pci_pme_active(struct pci_dev *dev, bool enable)
pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, pmcsr);
dev_printk(KERN_INFO, &dev->dev, "PME# %s\n",
dev_printk(KERN_DEBUG, &dev->dev, "PME# %s\n",
enable ? "enabled" : "disabled");
}
@ -1413,7 +1426,8 @@ void pci_pm_init(struct pci_dev *dev)
pmc &= PCI_PM_CAP_PME_MASK;
if (pmc) {
dev_info(&dev->dev, "PME# supported from%s%s%s%s%s\n",
dev_printk(KERN_DEBUG, &dev->dev,
"PME# supported from%s%s%s%s%s\n",
(pmc & PCI_PM_CAP_PME_D0) ? " D0" : "",
(pmc & PCI_PM_CAP_PME_D1) ? " D1" : "",
(pmc & PCI_PM_CAP_PME_D2) ? " D2" : "",
@ -1510,7 +1524,7 @@ void pci_enable_ari(struct pci_dev *dev)
u16 ctrl;
struct pci_dev *bridge;
if (!dev->is_pcie || dev->devfn)
if (!pci_is_pcie(dev) || dev->devfn)
return;
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ARI);
@ -1518,10 +1532,10 @@ void pci_enable_ari(struct pci_dev *dev)
return;
bridge = dev->bus->self;
if (!bridge || !bridge->is_pcie)
if (!bridge || !pci_is_pcie(bridge))
return;
pos = pci_find_capability(bridge, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(bridge);
if (!pos)
return;
@ -1536,6 +1550,54 @@ void pci_enable_ari(struct pci_dev *dev)
bridge->ari_enabled = 1;
}
static int pci_acs_enable;
/**
* pci_request_acs - ask for ACS to be enabled if supported
*/
void pci_request_acs(void)
{
pci_acs_enable = 1;
}
/**
* pci_enable_acs - enable ACS if hardware support it
* @dev: the PCI device
*/
void pci_enable_acs(struct pci_dev *dev)
{
int pos;
u16 cap;
u16 ctrl;
if (!pci_acs_enable)
return;
if (!pci_is_pcie(dev))
return;
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ACS);
if (!pos)
return;
pci_read_config_word(dev, pos + PCI_ACS_CAP, &cap);
pci_read_config_word(dev, pos + PCI_ACS_CTRL, &ctrl);
/* Source Validation */
ctrl |= (cap & PCI_ACS_SV);
/* P2P Request Redirect */
ctrl |= (cap & PCI_ACS_RR);
/* P2P Completion Redirect */
ctrl |= (cap & PCI_ACS_CR);
/* Upstream Forwarding */
ctrl |= (cap & PCI_ACS_UF);
pci_write_config_word(dev, pos + PCI_ACS_CTRL, ctrl);
}
/**
* pci_swizzle_interrupt_pin - swizzle INTx for device behind bridge
* @dev: the PCI device
@ -1669,9 +1731,7 @@ static int __pci_request_region(struct pci_dev *pdev, int bar, const char *res_n
return 0;
err_out:
dev_warn(&pdev->dev, "BAR %d: can't reserve %s region %pR\n",
bar,
pci_resource_flags(pdev, bar) & IORESOURCE_IO ? "I/O" : "mem",
dev_warn(&pdev->dev, "BAR %d: can't reserve %pR\n", bar,
&pdev->resource[bar]);
return -EBUSY;
}
@ -1866,31 +1926,6 @@ void pci_clear_master(struct pci_dev *dev)
__pci_set_master(dev, false);
}
#ifdef PCI_DISABLE_MWI
int pci_set_mwi(struct pci_dev *dev)
{
return 0;
}
int pci_try_set_mwi(struct pci_dev *dev)
{
return 0;
}
void pci_clear_mwi(struct pci_dev *dev)
{
}
#else
#ifndef PCI_CACHE_LINE_BYTES
#define PCI_CACHE_LINE_BYTES L1_CACHE_BYTES
#endif
/* This can be overridden by arch code. */
/* Don't forget this is measured in 32-bit words, not bytes */
u8 pci_cache_line_size = PCI_CACHE_LINE_BYTES / 4;
/**
* pci_set_cacheline_size - ensure the CACHE_LINE_SIZE register is programmed
* @dev: the PCI device for which MWI is to be enabled
@ -1901,13 +1936,12 @@ u8 pci_cache_line_size = PCI_CACHE_LINE_BYTES / 4;
*
* RETURNS: An appropriate -ERRNO error value on error, or zero for success.
*/
static int
pci_set_cacheline_size(struct pci_dev *dev)
int pci_set_cacheline_size(struct pci_dev *dev)
{
u8 cacheline_size;
if (!pci_cache_line_size)
return -EINVAL; /* The system doesn't support MWI. */
return -EINVAL;
/* Validate current setting: the PCI_CACHE_LINE_SIZE must be
equal to or multiple of the right value. */
@ -1928,6 +1962,24 @@ pci_set_cacheline_size(struct pci_dev *dev)
return -EINVAL;
}
EXPORT_SYMBOL_GPL(pci_set_cacheline_size);
#ifdef PCI_DISABLE_MWI
int pci_set_mwi(struct pci_dev *dev)
{
return 0;
}
int pci_try_set_mwi(struct pci_dev *dev)
{
return 0;
}
void pci_clear_mwi(struct pci_dev *dev)
{
}
#else
/**
* pci_set_mwi - enables memory-write-invalidate PCI transaction
@ -2062,6 +2114,7 @@ pci_set_dma_mask(struct pci_dev *dev, u64 mask)
return -EIO;
dev->dma_mask = mask;
dev_dbg(&dev->dev, "using %dbit DMA mask\n", fls64(mask));
return 0;
}
@ -2073,6 +2126,7 @@ pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
return -EIO;
dev->dev.coherent_dma_mask = mask;
dev_dbg(&dev->dev, "using %dbit consistent DMA mask\n", fls64(mask));
return 0;
}
@ -2099,9 +2153,9 @@ static int pcie_flr(struct pci_dev *dev, int probe)
int i;
int pos;
u32 cap;
u16 status;
u16 status, control;
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(dev);
if (!pos)
return -ENOTTY;
@ -2126,8 +2180,10 @@ static int pcie_flr(struct pci_dev *dev, int probe)
"proceeding with reset anyway\n");
clear:
pci_write_config_word(dev, pos + PCI_EXP_DEVCTL,
PCI_EXP_DEVCTL_BCR_FLR);
pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &control);
control |= PCI_EXP_DEVCTL_BCR_FLR;
pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, control);
msleep(100);
return 0;
@ -2450,7 +2506,7 @@ int pcie_get_readrq(struct pci_dev *dev)
int ret, cap;
u16 ctl;
cap = pci_find_capability(dev, PCI_CAP_ID_EXP);
cap = pci_pcie_cap(dev);
if (!cap)
return -EINVAL;
@ -2480,7 +2536,7 @@ int pcie_set_readrq(struct pci_dev *dev, int rq)
v = (ffs(rq) - 8) << 12;
cap = pci_find_capability(dev, PCI_CAP_ID_EXP);
cap = pci_pcie_cap(dev);
if (!cap)
goto out;
@ -2540,7 +2596,7 @@ int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type)
return reg;
}
dev_err(&dev->dev, "BAR: invalid resource #%d\n", resno);
dev_err(&dev->dev, "BAR %d: invalid resource\n", resno);
return 0;
}
@ -2590,7 +2646,7 @@ int pci_set_vga_state(struct pci_dev *dev, bool decode,
#define RESOURCE_ALIGNMENT_PARAM_SIZE COMMAND_LINE_SIZE
static char resource_alignment_param[RESOURCE_ALIGNMENT_PARAM_SIZE] = {0};
spinlock_t resource_alignment_lock = SPIN_LOCK_UNLOCKED;
static DEFINE_SPINLOCK(resource_alignment_lock);
/**
* pci_specified_resource_alignment - get resource alignment specified by user.

2
drivers/pci/pci.h
View file

@ -311,4 +311,6 @@ static inline int pci_resource_alignment(struct pci_dev *dev,
return resource_alignment(res);
}
extern void pci_enable_acs(struct pci_dev *dev);
#endif /* DRIVERS_PCI_H */

58
drivers/pci/pcie/aer/aer_inject.c
View file

@ -23,6 +23,7 @@
#include <linux/pci.h>
#include <linux/fs.h>
#include <linux/uaccess.h>
#include <linux/stddef.h>
#include "aerdrv.h"
struct aer_error_inj {
@ -35,10 +36,12 @@ struct aer_error_inj {
u32 header_log1;
u32 header_log2;
u32 header_log3;
u16 domain;
};
struct aer_error {
struct list_head list;
u16 domain;
unsigned int bus;
unsigned int devfn;
int pos_cap_err;
@ -66,22 +69,27 @@ static LIST_HEAD(pci_bus_ops_list);
/* Protect einjected and pci_bus_ops_list */
static DEFINE_SPINLOCK(inject_lock);
static void aer_error_init(struct aer_error *err, unsigned int bus,
unsigned int devfn, int pos_cap_err)
static void aer_error_init(struct aer_error *err, u16 domain,
unsigned int bus, unsigned int devfn,
int pos_cap_err)
{
INIT_LIST_HEAD(&err->list);
err->domain = domain;
err->bus = bus;
err->devfn = devfn;
err->pos_cap_err = pos_cap_err;
}
/* inject_lock must be held before calling */
static struct aer_error *__find_aer_error(unsigned int bus, unsigned int devfn)
static struct aer_error *__find_aer_error(u16 domain, unsigned int bus,
unsigned int devfn)
{
struct aer_error *err;
list_for_each_entry(err, &einjected, list) {
if (bus == err->bus && devfn == err->devfn)
if (domain == err->domain &&
bus == err->bus &&
devfn == err->devfn)
return err;
}
return NULL;
@ -90,7 +98,10 @@ static struct aer_error *__find_aer_error(unsigned int bus, unsigned int devfn)
/* inject_lock must be held before calling */
static struct aer_error *__find_aer_error_by_dev(struct pci_dev *dev)
{
return __find_aer_error(dev->bus->number, dev->devfn);
int domain = pci_domain_nr(dev->bus);
if (domain < 0)
return NULL;
return __find_aer_error((u16)domain, dev->bus->number, dev->devfn);
}
/* inject_lock must be held before calling */
@ -172,11 +183,15 @@ static int pci_read_aer(struct pci_bus *bus, unsigned int devfn, int where,
struct aer_error *err;
unsigned long flags;
struct pci_ops *ops;
int domain;
spin_lock_irqsave(&inject_lock, flags);
if (size != sizeof(u32))
goto out;
err = __find_aer_error(bus->number, devfn);
domain = pci_domain_nr(bus);
if (domain < 0)
goto out;
err = __find_aer_error((u16)domain, bus->number, devfn);
if (!err)
goto out;
@ -200,11 +215,15 @@ int pci_write_aer(struct pci_bus *bus, unsigned int devfn, int where, int size,
unsigned long flags;
int rw1cs;
struct pci_ops *ops;
int domain;
spin_lock_irqsave(&inject_lock, flags);
if (size != sizeof(u32))
goto out;
err = __find_aer_error(bus->number, devfn);
domain = pci_domain_nr(bus);
if (domain < 0)
goto out;
err = __find_aer_error((u16)domain, bus->number, devfn);
if (!err)
goto out;
@ -262,7 +281,7 @@ out:
static struct pci_dev *pcie_find_root_port(struct pci_dev *dev)
{
while (1) {
if (!dev->is_pcie)
if (!pci_is_pcie(dev))
break;
if (dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT)
return dev;
@ -305,25 +324,25 @@ static int aer_inject(struct aer_error_inj *einj)
u32 sever;
int ret = 0;
dev = pci_get_bus_and_slot(einj->bus, devfn);
dev = pci_get_domain_bus_and_slot((int)einj->domain, einj->bus, devfn);
if (!dev)
return -EINVAL;
return -ENODEV;
rpdev = pcie_find_root_port(dev);
if (!rpdev) {
ret = -EINVAL;
ret = -ENOTTY;
goto out_put;
}
pos_cap_err = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
if (!pos_cap_err) {
ret = -EIO;
ret = -ENOTTY;
goto out_put;
}
pci_read_config_dword(dev, pos_cap_err + PCI_ERR_UNCOR_SEVER, &sever);
rp_pos_cap_err = pci_find_ext_capability(rpdev, PCI_EXT_CAP_ID_ERR);
if (!rp_pos_cap_err) {
ret = -EIO;
ret = -ENOTTY;
goto out_put;
}
@ -344,7 +363,8 @@ static int aer_inject(struct aer_error_inj *einj)
if (!err) {
err = err_alloc;
err_alloc = NULL;
aer_error_init(err, einj->bus, devfn, pos_cap_err);
aer_error_init(err, einj->domain, einj->bus, devfn,
pos_cap_err);
list_add(&err->list, &einjected);
}
err->uncor_status |= einj->uncor_status;
@ -358,7 +378,8 @@ static int aer_inject(struct aer_error_inj *einj)
if (!rperr) {
rperr = rperr_alloc;
rperr_alloc = NULL;
aer_error_init(rperr, rpdev->bus->number, rpdev->devfn,
aer_error_init(rperr, pci_domain_nr(rpdev->bus),
rpdev->bus->number, rpdev->devfn,
rp_pos_cap_err);
list_add(&rperr->list, &einjected);
}
@ -411,10 +432,11 @@ static ssize_t aer_inject_write(struct file *filp, const char __user *ubuf,
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
if (usize != sizeof(struct aer_error_inj))
if (usize < offsetof(struct aer_error_inj, domain) ||
usize > sizeof(einj))
return -EINVAL;
memset(&einj, 0, sizeof(einj));
if (copy_from_user(&einj, ubuf, usize))
return -EFAULT;
@ -452,7 +474,7 @@ static void __exit aer_inject_exit(void)
}
spin_lock_irqsave(&inject_lock, flags);
list_for_each_entry_safe(err, err_next, &pci_bus_ops_list, list) {
list_for_each_entry_safe(err, err_next, &einjected, list) {
list_del(&err->list);
kfree(err);
}

4
drivers/pci/pcie/aer/aerdrv.c
View file

@ -53,7 +53,7 @@ static struct pci_error_handlers aer_error_handlers = {
static struct pcie_port_service_driver aerdriver = {
.name = "aer",
.port_type = PCIE_RC_PORT,
.port_type = PCI_EXP_TYPE_ROOT_PORT,
.service = PCIE_PORT_SERVICE_AER,
.probe = aer_probe,
@ -295,7 +295,7 @@ static void aer_error_resume(struct pci_dev *dev)
u16 reg16;
/* Clean up Root device status */
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(dev);
pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &reg16);
pci_write_config_word(dev, pos + PCI_EXP_DEVSTA, reg16);

72
drivers/pci/pcie/aer/aerdrv_core.c
View file

@ -35,11 +35,14 @@ int pci_enable_pcie_error_reporting(struct pci_dev *dev)
u16 reg16 = 0;
int pos;
if (dev->aer_firmware_first)
return -EIO;
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
if (!pos)
return -EIO;
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(dev);
if (!pos)
return -EIO;
@ -60,7 +63,10 @@ int pci_disable_pcie_error_reporting(struct pci_dev *dev)
u16 reg16 = 0;
int pos;
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
if (dev->aer_firmware_first)
return -EIO;
pos = pci_pcie_cap(dev);
if (!pos)
return -EIO;
@ -76,28 +82,6 @@ int pci_disable_pcie_error_reporting(struct pci_dev *dev)
EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting);
int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
{
int pos;
u32 status, mask;
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
if (!pos)
return -EIO;
pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask);
if (dev->error_state == pci_channel_io_normal)
status &= ~mask; /* Clear corresponding nonfatal bits */
else
status &= mask; /* Clear corresponding fatal bits */
pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status);
return 0;
}
EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status);
#if 0
int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
{
int pos;
u32 status;
@ -106,20 +90,21 @@ int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
if (!pos)
return -EIO;
pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS, &status);
pci_write_config_dword(dev, pos + PCI_ERR_COR_STATUS, status);
pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
if (status)
pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status);
return 0;
}
#endif /* 0 */
EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status);
static int set_device_error_reporting(struct pci_dev *dev, void *data)
{
bool enable = *((bool *)data);
if (dev->pcie_type == PCIE_RC_PORT ||
dev->pcie_type == PCIE_SW_UPSTREAM_PORT ||
dev->pcie_type == PCIE_SW_DOWNSTREAM_PORT) {
if ((dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT) ||
(dev->pcie_type == PCI_EXP_TYPE_UPSTREAM) ||
(dev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM)) {
if (enable)
pci_enable_pcie_error_reporting(dev);
else
@ -218,7 +203,7 @@ static int find_device_iter(struct pci_dev *dev, void *data)
*/
if (atomic_read(&dev->enable_cnt) == 0)
return 0;
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(dev);
if (!pos)
return 0;
/* Check if AER is enabled */
@ -431,10 +416,9 @@ static int find_aer_service_iter(struct device *device, void *data)
result = (struct find_aer_service_data *) data;
if (device->bus == &pcie_port_bus_type) {
struct pcie_port_data *port_data;
struct pcie_device *pcie = to_pcie_device(device);
port_data = pci_get_drvdata(to_pcie_device(device)->port);
if (port_data->port_type == PCIE_SW_DOWNSTREAM_PORT)
if (pcie->port->pcie_type == PCI_EXP_TYPE_DOWNSTREAM)
result->is_downstream = 1;
driver = device->driver;
@ -612,7 +596,7 @@ void aer_enable_rootport(struct aer_rpc *rpc)
u16 reg16;
u32 reg32;
pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(pdev);
/* Clear PCIE Capability's Device Status */
pci_read_config_word(pdev, pos+PCI_EXP_DEVSTA, &reg16);
pci_write_config_word(pdev, pos+PCI_EXP_DEVSTA, reg16);
@ -874,8 +858,22 @@ void aer_delete_rootport(struct aer_rpc *rpc)
*/
int aer_init(struct pcie_device *dev)
{
if (aer_osc_setup(dev) && !forceload)
return -ENXIO;
if (dev->port->aer_firmware_first) {
dev_printk(KERN_DEBUG, &dev->device,
"PCIe errors handled by platform firmware.\n");
goto out;
}
if (aer_osc_setup(dev))
goto out;
return 0;
out:
if (forceload) {
dev_printk(KERN_DEBUG, &dev->device,
"aerdrv forceload requested.\n");
dev->port->aer_firmware_first = 0;
return 0;
}
return -ENXIO;
}

4
drivers/pci/pcie/aer/ecrc.c
View file

@ -51,7 +51,7 @@ static int enable_ecrc_checking(struct pci_dev *dev)
int pos;
u32 reg32;
if (!dev->is_pcie)
if (!pci_is_pcie(dev))
return -ENODEV;
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
@ -79,7 +79,7 @@ static int disable_ecrc_checking(struct pci_dev *dev)
int pos;
u32 reg32;
if (!dev->is_pcie)
if (!pci_is_pcie(dev))
return -ENODEV;
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);

37
drivers/pci/pcie/aspm.c
View file

@ -122,7 +122,7 @@ static void pcie_set_clkpm_nocheck(struct pcie_link_state *link, int enable)
struct pci_bus *linkbus = link->pdev->subordinate;
list_for_each_entry(child, &linkbus->devices, bus_list) {
pos = pci_find_capability(child, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(child);
if (!pos)
return;
pci_read_config_word(child, pos + PCI_EXP_LNKCTL, &reg16);
@ -156,7 +156,7 @@ static void pcie_clkpm_cap_init(struct pcie_link_state *link, int blacklist)
/* All functions should have the same cap and state, take the worst */
list_for_each_entry(child, &linkbus->devices, bus_list) {
pos = pci_find_capability(child, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(child);
if (!pos)
return;
pci_read_config_dword(child, pos + PCI_EXP_LNKCAP, &reg32);
@ -191,23 +191,23 @@ static void pcie_aspm_configure_common_clock(struct pcie_link_state *link)
* Configuration, so just check one function
*/
child = list_entry(linkbus->devices.next, struct pci_dev, bus_list);
BUG_ON(!child->is_pcie);
BUG_ON(!pci_is_pcie(child));
/* Check downstream component if bit Slot Clock Configuration is 1 */
cpos = pci_find_capability(child, PCI_CAP_ID_EXP);
cpos = pci_pcie_cap(child);
pci_read_config_word(child, cpos + PCI_EXP_LNKSTA, &reg16);
if (!(reg16 & PCI_EXP_LNKSTA_SLC))
same_clock = 0;
/* Check upstream component if bit Slot Clock Configuration is 1 */
ppos = pci_find_capability(parent, PCI_CAP_ID_EXP);
ppos = pci_pcie_cap(parent);
pci_read_config_word(parent, ppos + PCI_EXP_LNKSTA, &reg16);
if (!(reg16 & PCI_EXP_LNKSTA_SLC))
same_clock = 0;
/* Configure downstream component, all functions */
list_for_each_entry(child, &linkbus->devices, bus_list) {
cpos = pci_find_capability(child, PCI_CAP_ID_EXP);
cpos = pci_pcie_cap(child);
pci_read_config_word(child, cpos + PCI_EXP_LNKCTL, &reg16);
child_reg[PCI_FUNC(child->devfn)] = reg16;
if (same_clock)
@ -247,7 +247,7 @@ static void pcie_aspm_configure_common_clock(struct pcie_link_state *link)
dev_printk(KERN_ERR, &parent->dev,
"ASPM: Could not configure common clock\n");
list_for_each_entry(child, &linkbus->devices, bus_list) {
cpos = pci_find_capability(child, PCI_CAP_ID_EXP);
cpos = pci_pcie_cap(child);
pci_write_config_word(child, cpos + PCI_EXP_LNKCTL,
child_reg[PCI_FUNC(child->devfn)]);
}
@ -300,7 +300,7 @@ static void pcie_get_aspm_reg(struct pci_dev *pdev,
u16 reg16;
u32 reg32;
pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(pdev);
pci_read_config_dword(pdev, pos + PCI_EXP_LNKCAP, &reg32);
info->support = (reg32 & PCI_EXP_LNKCAP_ASPMS) >> 10;
info->latency_encoding_l0s = (reg32 & PCI_EXP_LNKCAP_L0SEL) >> 12;
@ -420,7 +420,7 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
child->pcie_type != PCI_EXP_TYPE_LEG_END)
continue;
pos = pci_find_capability(child, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(child);
pci_read_config_dword(child, pos + PCI_EXP_DEVCAP, &reg32);
/* Calculate endpoint L0s acceptable latency */
encoding = (reg32 & PCI_EXP_DEVCAP_L0S) >> 6;
@ -436,7 +436,7 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist)
static void pcie_config_aspm_dev(struct pci_dev *pdev, u32 val)
{
u16 reg16;
int pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
int pos = pci_pcie_cap(pdev);
pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &reg16);
reg16 &= ~0x3;
@ -503,7 +503,7 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
* very strange. Disable ASPM for the whole slot
*/
list_for_each_entry(child, &pdev->subordinate->devices, bus_list) {
pos = pci_find_capability(child, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(child);
if (!pos)
return -EINVAL;
/*
@ -563,7 +563,7 @@ void pcie_aspm_init_link_state(struct pci_dev *pdev)
struct pcie_link_state *link;
int blacklist = !!pcie_aspm_sanity_check(pdev);
if (aspm_disabled || !pdev->is_pcie || pdev->link_state)
if (aspm_disabled || !pci_is_pcie(pdev) || pdev->link_state)
return;
if (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)
@ -629,7 +629,8 @@ void pcie_aspm_exit_link_state(struct pci_dev *pdev)
struct pci_dev *parent = pdev->bus->self;
struct pcie_link_state *link, *root, *parent_link;
if (aspm_disabled || !pdev->is_pcie || !parent || !parent->link_state)
if (aspm_disabled || !pci_is_pcie(pdev) ||
!parent || !parent->link_state)
return;
if ((parent->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
(parent->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
@ -670,7 +671,7 @@ void pcie_aspm_pm_state_change(struct pci_dev *pdev)
{
struct pcie_link_state *link = pdev->link_state;
if (aspm_disabled || !pdev->is_pcie || !link)
if (aspm_disabled || !pci_is_pcie(pdev) || !link)
return;
if ((pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
(pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
@ -696,7 +697,7 @@ void pci_disable_link_state(struct pci_dev *pdev, int state)
struct pci_dev *parent = pdev->bus->self;
struct pcie_link_state *link;
if (aspm_disabled || !pdev->is_pcie)
if (aspm_disabled || !pci_is_pcie(pdev))
return;
if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT ||
pdev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM)
@ -841,7 +842,8 @@ void pcie_aspm_create_sysfs_dev_files(struct pci_dev *pdev)
{
struct pcie_link_state *link_state = pdev->link_state;
if (!pdev->is_pcie || (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
if (!pci_is_pcie(pdev) ||
(pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM) || !link_state)
return;
@ -857,7 +859,8 @@ void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev)
{
struct pcie_link_state *link_state = pdev->link_state;
if (!pdev->is_pcie || (pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
if (!pci_is_pcie(pdev) ||
(pdev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM) || !link_state)
return;

19
drivers/pci/pcie/portdrv.h
View file

@ -11,31 +11,16 @@
#include <linux/compiler.h>
#if !defined(PCI_CAP_ID_PME)
#define PCI_CAP_ID_PME 1
#endif
#if !defined(PCI_CAP_ID_EXP)
#define PCI_CAP_ID_EXP 0x10
#endif
#define PORT_TYPE_MASK 0xf
#define PORT_TO_SLOT_MASK 0x100
#define SLOT_HP_CAPABLE_MASK 0x40
#define PCIE_CAPABILITIES_REG 0x2
#define PCIE_SLOT_CAPABILITIES_REG 0x14
#define PCIE_PORT_DEVICE_MAXSERVICES 4
#define PCIE_PORT_MSI_VECTOR_MASK 0x1f
/*
* According to the PCI Express Base Specification 2.0, the indices of the MSI-X
* table entires used by port services must not exceed 31
* According to the PCI Express Base Specification 2.0, the indices of
* the MSI-X table entires used by port services must not exceed 31
*/
#define PCIE_PORT_MAX_MSIX_ENTRIES 32
#define get_descriptor_id(type, service) (((type - 4) << 4) | service)
extern struct bus_type pcie_port_bus_type;
extern int pcie_port_device_probe(struct pci_dev *dev);
extern int pcie_port_device_register(struct pci_dev *dev);
#ifdef CONFIG_PM
extern int pcie_port_device_suspend(struct device *dev);

7
drivers/pci/pcie/portdrv_bus.c
View file

@ -26,7 +26,6 @@ EXPORT_SYMBOL_GPL(pcie_port_bus_type);
static int pcie_port_bus_match(struct device *dev, struct device_driver *drv)
{
struct pcie_device *pciedev;
struct pcie_port_data *port_data;
struct pcie_port_service_driver *driver;
if (drv->bus != &pcie_port_bus_type || dev->bus != &pcie_port_bus_type)
@ -38,10 +37,8 @@ static int pcie_port_bus_match(struct device *dev, struct device_driver *drv)
if (driver->service != pciedev->service)
return 0;
port_data = pci_get_drvdata(pciedev->port);
if (driver->port_type != PCIE_ANY_PORT
&& driver->port_type != port_data->port_type)
if ((driver->port_type != PCIE_ANY_PORT) &&
(driver->port_type != pciedev->port->pcie_type))
return 0;
return 1;

237
drivers/pci/pcie/portdrv_core.c
View file

@ -108,9 +108,9 @@ static int pcie_port_enable_msix(struct pci_dev *dev, int *vectors, int mask)
* the value in this field indicates which MSI-X Table entry is
* used to generate the interrupt message."
*/
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pci_read_config_word(dev, pos + PCIE_CAPABILITIES_REG, &reg16);
entry = (reg16 >> 9) & PCIE_PORT_MSI_VECTOR_MASK;
pos = pci_pcie_cap(dev);
pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &reg16);
entry = (reg16 & PCI_EXP_FLAGS_IRQ) >> 9;
if (entry >= nr_entries)
goto Error;
@ -177,37 +177,40 @@ static int pcie_port_enable_msix(struct pci_dev *dev, int *vectors, int mask)
}
/**
* assign_interrupt_mode - choose interrupt mode for PCI Express port services
* (INTx, MSI-X, MSI) and set up vectors
* init_service_irqs - initialize irqs for PCI Express port services
* @dev: PCI Express port to handle
* @vectors: Array of interrupt vectors to populate
* @irqs: Array of irqs to populate
* @mask: Bitmask of port capabilities returned by get_port_device_capability()
*
* Return value: Interrupt mode associated with the port
*/
static int assign_interrupt_mode(struct pci_dev *dev, int *vectors, int mask)
static int init_service_irqs(struct pci_dev *dev, int *irqs, int mask)
{
int irq, interrupt_mode = PCIE_PORT_NO_IRQ;
int i;
int i, irq;
/* Try to use MSI-X if supported */
if (!pcie_port_enable_msix(dev, vectors, mask))
return PCIE_PORT_MSIX_MODE;
if (!pcie_port_enable_msix(dev, irqs, mask))
return 0;
/* We're not going to use MSI-X, so try MSI and fall back to INTx */
if (!pci_enable_msi(dev))
interrupt_mode = PCIE_PORT_MSI_MODE;
irq = -1;
if (!pci_enable_msi(dev) || dev->pin)
irq = dev->irq;
if (interrupt_mode == PCIE_PORT_NO_IRQ && dev->pin)
interrupt_mode = PCIE_PORT_INTx_MODE;
irq = interrupt_mode != PCIE_PORT_NO_IRQ ? dev->irq : -1;
for (i = 0; i < PCIE_PORT_DEVICE_MAXSERVICES; i++)
vectors[i] = irq;
irqs[i] = irq;
irqs[PCIE_PORT_SERVICE_VC_SHIFT] = -1;
vectors[PCIE_PORT_SERVICE_VC_SHIFT] = -1;
if (irq < 0)
return -ENODEV;
return 0;
}
return interrupt_mode;
static void cleanup_service_irqs(struct pci_dev *dev)
{
if (dev->msix_enabled)
pci_disable_msix(dev);
else if (dev->msi_enabled)
pci_disable_msi(dev);
}
/**
@ -226,13 +229,12 @@ static int get_port_device_capability(struct pci_dev *dev)
u16 reg16;
u32 reg32;
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pci_read_config_word(dev, pos + PCIE_CAPABILITIES_REG, &reg16);
pos = pci_pcie_cap(dev);
pci_read_config_word(dev, pos + PCI_EXP_FLAGS, &reg16);
/* Hot-Plug Capable */
if (reg16 & PORT_TO_SLOT_MASK) {
pci_read_config_dword(dev,
pos + PCIE_SLOT_CAPABILITIES_REG, &reg32);
if (reg32 & SLOT_HP_CAPABLE_MASK)
if (reg16 & PCI_EXP_FLAGS_SLOT) {
pci_read_config_dword(dev, pos + PCI_EXP_SLTCAP, &reg32);
if (reg32 & PCI_EXP_SLTCAP_HPC)
services |= PCIE_PORT_SERVICE_HP;
}
/* AER capable */
@ -241,80 +243,47 @@ static int get_port_device_capability(struct pci_dev *dev)
/* VC support */
if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_VC))
services |= PCIE_PORT_SERVICE_VC;
/* Root ports are capable of generating PME too */
if (dev->pcie_type == PCI_EXP_TYPE_ROOT_PORT)
services |= PCIE_PORT_SERVICE_PME;
return services;
}
/**
* pcie_device_init - initialize PCI Express port service device
* @dev: Port service device to initialize
* @parent: PCI Express port to associate the service device with
* @port_type: Type of the port
* @service_type: Type of service to associate with the service device
* pcie_device_init - allocate and initialize PCI Express port service device
* @pdev: PCI Express port to associate the service device with
* @service: Type of service to associate with the service device
* @irq: Interrupt vector to associate with the service device
*/
static void pcie_device_init(struct pci_dev *parent, struct pcie_device *dev,
int service_type, int irq)
static int pcie_device_init(struct pci_dev *pdev, int service, int irq)
{
struct pcie_port_data *port_data = pci_get_drvdata(parent);
int retval;
struct pcie_device *pcie;
struct device *device;
int port_type = port_data->port_type;
dev->port = parent;
dev->irq = irq;
dev->service = service_type;
pcie = kzalloc(sizeof(*pcie), GFP_KERNEL);
if (!pcie)
return -ENOMEM;
pcie->port = pdev;
pcie->irq = irq;
pcie->service = service;
/* Initialize generic device interface */
device = &dev->device;
memset(device, 0, sizeof(struct device));
device = &pcie->device;
device->bus = &pcie_port_bus_type;
device->driver = NULL;
dev_set_drvdata(device, NULL);
device->release = release_pcie_device; /* callback to free pcie dev */
dev_set_name(device, "%s:pcie%02x",
pci_name(parent), get_descriptor_id(port_type, service_type));
device->parent = &parent->dev;
}
pci_name(pdev),
get_descriptor_id(pdev->pcie_type, service));
device->parent = &pdev->dev;
/**
* alloc_pcie_device - allocate PCI Express port service device structure
* @parent: PCI Express port to associate the service device with
* @port_type: Type of the port
* @service_type: Type of service to associate with the service device
* @irq: Interrupt vector to associate with the service device
*/
static struct pcie_device* alloc_pcie_device(struct pci_dev *parent,
int service_type, int irq)
{
struct pcie_device *device;
device = kzalloc(sizeof(struct pcie_device), GFP_KERNEL);
if (!device)
return NULL;
pcie_device_init(parent, device, service_type, irq);
return device;
}
/**
* pcie_port_device_probe - check if device is a PCI Express port
* @dev: Device to check
*/
int pcie_port_device_probe(struct pci_dev *dev)
{
int pos, type;
u16 reg;
if (!(pos = pci_find_capability(dev, PCI_CAP_ID_EXP)))
return -ENODEV;
pci_read_config_word(dev, pos + PCIE_CAPABILITIES_REG, &reg);
type = (reg >> 4) & PORT_TYPE_MASK;
if ( type == PCIE_RC_PORT || type == PCIE_SW_UPSTREAM_PORT ||
type == PCIE_SW_DOWNSTREAM_PORT )
return 0;
return -ENODEV;
retval = device_register(device);
if (retval)
kfree(pcie);
else
get_device(device);
return retval;
}
/**
@ -326,77 +295,49 @@ int pcie_port_device_probe(struct pci_dev *dev)
*/
int pcie_port_device_register(struct pci_dev *dev)
{
struct pcie_port_data *port_data;
int status, capabilities, irq_mode, i, nr_serv;
int vectors[PCIE_PORT_DEVICE_MAXSERVICES];
u16 reg16;
port_data = kzalloc(sizeof(*port_data), GFP_KERNEL);
if (!port_data)
return -ENOMEM;
pci_set_drvdata(dev, port_data);
/* Get port type */
pci_read_config_word(dev,
pci_find_capability(dev, PCI_CAP_ID_EXP) +
PCIE_CAPABILITIES_REG, &reg16);
port_data->port_type = (reg16 >> 4) & PORT_TYPE_MASK;
int status, capabilities, i, nr_service;
int irqs[PCIE_PORT_DEVICE_MAXSERVICES];
/* Get and check PCI Express port services */
capabilities = get_port_device_capability(dev);
/* Root ports are capable of generating PME too */
if (port_data->port_type == PCIE_RC_PORT)
capabilities |= PCIE_PORT_SERVICE_PME;
irq_mode = assign_interrupt_mode(dev, vectors, capabilities);
if (irq_mode == PCIE_PORT_NO_IRQ) {
/*
* Don't use service devices that require interrupts if there is
* no way to generate them.
*/
if (!(capabilities & PCIE_PORT_SERVICE_VC)) {
status = -ENODEV;
goto Error;
}
capabilities = PCIE_PORT_SERVICE_VC;
}
port_data->port_irq_mode = irq_mode;
if (!capabilities)
return -ENODEV;
/* Enable PCI Express port device */
status = pci_enable_device(dev);
if (status)
goto Error;
return status;
pci_set_master(dev);
/*
* Initialize service irqs. Don't use service devices that
* require interrupts if there is no way to generate them.
*/
status = init_service_irqs(dev, irqs, capabilities);
if (status) {
capabilities &= PCIE_PORT_SERVICE_VC;
if (!capabilities)
goto error_disable;
}
/* Allocate child services if any */
for (i = 0, nr_serv = 0; i < PCIE_PORT_DEVICE_MAXSERVICES; i++) {
struct pcie_device *child;
status = -ENODEV;
nr_service = 0;
for (i = 0; i < PCIE_PORT_DEVICE_MAXSERVICES; i++) {
int service = 1 << i;
if (!(capabilities & service))
continue;
child = alloc_pcie_device(dev, service, vectors[i]);
if (!child)
continue;
status = device_register(&child->device);
if (status) {
kfree(child);
continue;
}
get_device(&child->device);
nr_serv++;
}
if (!nr_serv) {
pci_disable_device(dev);
status = -ENODEV;
goto Error;
if (!pcie_device_init(dev, service, irqs[i]))
nr_service++;
}
if (!nr_service)
goto error_cleanup_irqs;
return 0;
Error:
kfree(port_data);
error_cleanup_irqs:
cleanup_service_irqs(dev);
error_disable:
pci_disable_device(dev);
return status;
}
@ -464,21 +405,9 @@ static int remove_iter(struct device *dev, void *data)
*/
void pcie_port_device_remove(struct pci_dev *dev)
{
struct pcie_port_data *port_data = pci_get_drvdata(dev);
device_for_each_child(&dev->dev, NULL, remove_iter);
cleanup_service_irqs(dev);
pci_disable_device(dev);
switch (port_data->port_irq_mode) {
case PCIE_PORT_MSIX_MODE:
pci_disable_msix(dev);
break;
case PCIE_PORT_MSI_MODE:
pci_disable_msi(dev);
break;
}
kfree(port_data);
}
/**

12
drivers/pci/pcie/portdrv_pci.c
View file

@ -67,14 +67,16 @@ static struct dev_pm_ops pcie_portdrv_pm_ops = {
* this port device.
*
*/
static int __devinit pcie_portdrv_probe (struct pci_dev *dev,
const struct pci_device_id *id )
static int __devinit pcie_portdrv_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
int status;
status = pcie_port_device_probe(dev);
if (status)
return status;
if (!pci_is_pcie(dev) ||
((dev->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
(dev->pcie_type != PCI_EXP_TYPE_UPSTREAM) &&
(dev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)))
return -ENODEV;
if (!dev->irq && dev->pin) {
dev_warn(&dev->dev, "device [%04x:%04x] has invalid IRQ; "

83
drivers/pci/probe.c
View file

@ -10,6 +10,7 @@
#include <linux/module.h>
#include <linux/cpumask.h>
#include <linux/pci-aspm.h>
#include <acpi/acpi_hest.h>
#include "pci.h"
#define CARDBUS_LATENCY_TIMER 176 /* secondary latency timer */
@ -163,12 +164,12 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
{
u32 l, sz, mask;
mask = type ? ~PCI_ROM_ADDRESS_ENABLE : ~0;
mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
res->name = pci_name(dev);
pci_read_config_dword(dev, pos, &l);
pci_write_config_dword(dev, pos, mask);
pci_write_config_dword(dev, pos, l | mask);
pci_read_config_dword(dev, pos, &sz);
pci_write_config_dword(dev, pos, l);
@ -223,9 +224,13 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
goto fail;
if ((sizeof(resource_size_t) < 8) && (sz64 > 0x100000000ULL)) {
dev_err(&dev->dev, "can't handle 64-bit BAR\n");
dev_err(&dev->dev, "reg %x: can't handle 64-bit BAR\n",
pos);
goto fail;
} else if ((sizeof(resource_size_t) < 8) && l) {
}
res->flags |= IORESOURCE_MEM_64;
if ((sizeof(resource_size_t) < 8) && l) {
/* Address above 32-bit boundary; disable the BAR */
pci_write_config_dword(dev, pos, 0);
pci_write_config_dword(dev, pos + 4, 0);
@ -234,14 +239,9 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
} else {
res->start = l64;
res->end = l64 + sz64;
dev_printk(KERN_DEBUG, &dev->dev,
"reg %x %s: %pR\n", pos,
(res->flags & IORESOURCE_PREFETCH) ?
"64bit mmio pref" : "64bit mmio",
res);
dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n",
pos, res);
}
res->flags |= IORESOURCE_MEM_64;
} else {
sz = pci_size(l, sz, mask);
@ -251,11 +251,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
res->start = l;
res->end = l + sz;
dev_printk(KERN_DEBUG, &dev->dev, "reg %x %s: %pR\n", pos,
(res->flags & IORESOURCE_IO) ? "io port" :
((res->flags & IORESOURCE_PREFETCH) ?
"32bit mmio pref" : "32bit mmio"),
res);
dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res);
}
out:
@ -297,8 +293,11 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
if (pci_is_root_bus(child)) /* It's a host bus, nothing to read */
return;
dev_info(&dev->dev, "PCI bridge to [bus %02x-%02x]%s\n",
child->secondary, child->subordinate,
dev->transparent ? " (subtractive decode)": "");
if (dev->transparent) {
dev_info(&dev->dev, "transparent bridge\n");
for(i = 3; i < PCI_BUS_NUM_RESOURCES; i++)
child->resource[i] = child->parent->resource[i - 3];
}
@ -323,7 +322,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
res->start = base;
if (!res->end)
res->end = limit + 0xfff;
dev_printk(KERN_DEBUG, &dev->dev, "bridge io port: %pR\n", res);
dev_printk(KERN_DEBUG, &dev->dev, " bridge window %pR\n", res);
}
res = child->resource[1];
@ -335,8 +334,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM;
res->start = base;
res->end = limit + 0xfffff;
dev_printk(KERN_DEBUG, &dev->dev, "bridge 32bit mmio: %pR\n",
res);
dev_printk(KERN_DEBUG, &dev->dev, " bridge window %pR\n", res);
}
res = child->resource[2];
@ -375,9 +373,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
res->flags |= IORESOURCE_MEM_64;
res->start = base;
res->end = limit + 0xfffff;
dev_printk(KERN_DEBUG, &dev->dev, "bridge %sbit mmio pref: %pR\n",
(res->flags & PCI_PREF_RANGE_TYPE_64) ? "64" : "32",
res);
dev_printk(KERN_DEBUG, &dev->dev, " bridge window %pR\n", res);
}
}
@ -651,13 +647,14 @@ int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,
(child->number > bus->subordinate) ||
(child->number < bus->number) ||
(child->subordinate < bus->number)) {
pr_debug("PCI: Bus #%02x (-#%02x) is %s "
"hidden behind%s bridge #%02x (-#%02x)\n",
dev_info(&child->dev, "[bus %02x-%02x] %s "
"hidden behind%s bridge %s [bus %02x-%02x]\n",
child->number, child->subordinate,
(bus->number > child->subordinate &&
bus->subordinate < child->number) ?
"wholly" : "partially",
bus->self->transparent ? " transparent" : "",
dev_name(&bus->dev),
bus->number, bus->subordinate);
}
bus = bus->parent;
@ -693,6 +690,7 @@ static void set_pcie_port_type(struct pci_dev *pdev)
if (!pos)
return;
pdev->is_pcie = 1;
pdev->pcie_cap = pos;
pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
pdev->pcie_type = (reg16 & PCI_EXP_FLAGS_TYPE) >> 4;
}
@ -703,7 +701,7 @@ static void set_pcie_hotplug_bridge(struct pci_dev *pdev)
u16 reg16;
u32 reg32;
pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(pdev);
if (!pos)
return;
pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
@ -714,6 +712,12 @@ static void set_pcie_hotplug_bridge(struct pci_dev *pdev)
pdev->is_hotplug_bridge = 1;
}
static void set_pci_aer_firmware_first(struct pci_dev *pdev)
{
if (acpi_hest_firmware_first_pci(pdev))
pdev->aer_firmware_first = 1;
}
#define LEGACY_IO_RESOURCE (IORESOURCE_IO | IORESOURCE_PCI_FIXED)
/**
@ -731,6 +735,7 @@ int pci_setup_device(struct pci_dev *dev)
u32 class;
u8 hdr_type;
struct pci_slot *slot;
int pos = 0;
if (pci_read_config_byte(dev, PCI_HEADER_TYPE, &hdr_type))
return -EIO;
@ -742,6 +747,7 @@ int pci_setup_device(struct pci_dev *dev)
dev->multifunction = !!(hdr_type & 0x80);
dev->error_state = pci_channel_io_normal;
set_pcie_port_type(dev);
set_pci_aer_firmware_first(dev);
list_for_each_entry(slot, &dev->bus->slots, list)
if (PCI_SLOT(dev->devfn) == slot->number)
@ -822,6 +828,11 @@ int pci_setup_device(struct pci_dev *dev)
dev->transparent = ((dev->class & 0xff) == 1);
pci_read_bases(dev, 2, PCI_ROM_ADDRESS1);
set_pcie_hotplug_bridge(dev);
pos = pci_find_capability(dev, PCI_CAP_ID_SSVID);
if (pos) {
pci_read_config_word(dev, pos + PCI_SSVID_VENDOR_ID, &dev->subsystem_vendor);
pci_read_config_word(dev, pos + PCI_SSVID_DEVICE_ID, &dev->subsystem_device);
}
break;
case PCI_HEADER_TYPE_CARDBUS: /* CardBus bridge header */
@ -907,7 +918,7 @@ int pci_cfg_space_size(struct pci_dev *dev)
if (class == PCI_CLASS_BRIDGE_HOST)
return pci_cfg_space_size_ext(dev);
pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
pos = pci_pcie_cap(dev);
if (!pos) {
pos = pci_find_capability(dev, PCI_CAP_ID_PCIX);
if (!pos)
@ -1014,6 +1025,9 @@ static void pci_init_capabilities(struct pci_dev *dev)
/* Single Root I/O Virtualization */
pci_iov_init(dev);
/* Enable ACS P2P upstream forwarding */
pci_enable_acs(dev);
}
void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
@ -1110,7 +1124,7 @@ unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus)
unsigned int devfn, pass, max = bus->secondary;
struct pci_dev *dev;
pr_debug("PCI: Scanning bus %04x:%02x\n", pci_domain_nr(bus), bus->number);
dev_dbg(&bus->dev, "scanning bus\n");
/* Go find them, Rover! */
for (devfn = 0; devfn < 0x100; devfn += 8)
@ -1124,8 +1138,7 @@ unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus)
* all PCI-to-PCI bridges on this bus.
*/
if (!bus->is_added) {
pr_debug("PCI: Fixups for bus %04x:%02x\n",
pci_domain_nr(bus), bus->number);
dev_dbg(&bus->dev, "fixups for bus\n");
pcibios_fixup_bus(bus);
if (pci_is_root_bus(bus))
bus->is_added = 1;
@ -1145,8 +1158,7 @@ unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus)
*
* Return how far we've got finding sub-buses.
*/
pr_debug("PCI: Bus scan for %04x:%02x returning with max=%02x\n",
pci_domain_nr(bus), bus->number, max);
dev_dbg(&bus->dev, "bus scan returning with max=%02x\n", max);
return max;
}
@ -1154,7 +1166,7 @@ struct pci_bus * pci_create_bus(struct device *parent,
int bus, struct pci_ops *ops, void *sysdata)
{
int error;
struct pci_bus *b;
struct pci_bus *b, *b2;
struct device *dev;
b = pci_alloc_bus();
@ -1170,9 +1182,10 @@ struct pci_bus * pci_create_bus(struct device *parent,
b->sysdata = sysdata;
b->ops = ops;
if (pci_find_bus(pci_domain_nr(b), bus)) {
b2 = pci_find_bus(pci_domain_nr(b), bus);
if (b2) {
/* If we already got to this bus through a different bridge, ignore it */
pr_debug("PCI: Bus %04x:%02x already known\n", pci_domain_nr(b), bus);
dev_dbg(&b2->dev, "bus already known\n");
goto err_out;
}

36
drivers/pci/quirks.c
View file

@ -357,7 +357,7 @@ static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region,
pcibios_bus_to_resource(dev, res, &bus_region);
pci_claim_resource(dev, nr);
dev_info(&dev->dev, "quirk: region %04x-%04x claimed by %s\n", region, region + size - 1, name);
dev_info(&dev->dev, "quirk: %pR claimed by %s\n", res, name);
}
}
@ -1680,6 +1680,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_
*/
#define AMD_813X_MISC 0x40
#define AMD_813X_NOIOAMODE (1<<0)
#define AMD_813X_REV_B1 0x12
#define AMD_813X_REV_B2 0x13
static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
@ -1688,7 +1689,8 @@ static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
if (noioapicquirk)
return;
if (dev->revision == AMD_813X_REV_B2)
if ((dev->revision == AMD_813X_REV_B1) ||
(dev->revision == AMD_813X_REV_B2))
return;
pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword);
@ -1699,6 +1701,8 @@ static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev)
dev->vendor, dev->device);
}
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt);
#define AMD_8111_PCI_IRQ_ROUTING 0x56
@ -2595,9 +2599,37 @@ void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
static int __init pci_apply_final_quirks(void)
{
struct pci_dev *dev = NULL;
u8 cls = 0;
u8 tmp;
if (pci_cache_line_size)
printk(KERN_DEBUG "PCI: CLS %u bytes\n",
pci_cache_line_size << 2);
while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
pci_fixup_device(pci_fixup_final, dev);
/*
* If arch hasn't set it explicitly yet, use the CLS
* value shared by all PCI devices. If there's a
* mismatch, fall back to the default value.
*/
if (!pci_cache_line_size) {
pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp);
if (!cls)
cls = tmp;
if (!tmp || cls == tmp)
continue;
printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), "
"using %u bytes\n", cls << 2, tmp << 2,
pci_dfl_cache_line_size << 2);
pci_cache_line_size = pci_dfl_cache_line_size;
}
}
if (!pci_cache_line_size) {
printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n",
cls << 2, pci_dfl_cache_line_size << 2);
pci_cache_line_size = cls;
}
return 0;

36
drivers/pci/search.c
View file

@ -26,14 +26,14 @@ pci_find_upstream_pcie_bridge(struct pci_dev *pdev)
{
struct pci_dev *tmp = NULL;
if (pdev->is_pcie)
if (pci_is_pcie(pdev))
return NULL;
while (1) {
if (pci_is_root_bus(pdev->bus))
break;
pdev = pdev->bus->self;
/* a p2p bridge */
if (!pdev->is_pcie) {
if (!pci_is_pcie(pdev)) {
tmp = pdev;
continue;
}
@ -149,32 +149,33 @@ struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn)
}
/**
* pci_get_bus_and_slot - locate PCI device from a given PCI bus & slot
* @bus: number of PCI bus on which desired PCI device resides
* @devfn: encodes number of PCI slot in which the desired PCI
* device resides and the logical device number within that slot
* in case of multi-function devices.
* pci_get_domain_bus_and_slot - locate PCI device for a given PCI domain (segment), bus, and slot
* @domain: PCI domain/segment on which the PCI device resides.
* @bus: PCI bus on which desired PCI device resides
* @devfn: encodes number of PCI slot in which the desired PCI device
* resides and the logical device number within that slot in case of
* multi-function devices.
*
* Note: the bus/slot search is limited to PCI domain (segment) 0.
*
* Given a PCI bus and slot/function number, the desired PCI device
* is located in system global list of PCI devices. If the device
* is found, a pointer to its data structure is returned. If no
* device is found, %NULL is returned. The returned device has its
* reference count bumped by one.
* Given a PCI domain, bus, and slot/function number, the desired PCI
* device is located in the list of PCI devices. If the device is
* found, its reference count is increased and this function returns a
* pointer to its data structure. The caller must decrement the
* reference count by calling pci_dev_put(). If no device is found,
* %NULL is returned.
*/
struct pci_dev * pci_get_bus_and_slot(unsigned int bus, unsigned int devfn)
struct pci_dev *pci_get_domain_bus_and_slot(int domain, unsigned int bus,
unsigned int devfn)
{
struct pci_dev *dev = NULL;
while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
if (pci_domain_nr(dev->bus) == 0 &&
if (pci_domain_nr(dev->bus) == domain &&
(dev->bus->number == bus && dev->devfn == devfn))
return dev;
}
return NULL;
}
EXPORT_SYMBOL(pci_get_domain_bus_and_slot);
static int match_pci_dev_by_id(struct device *dev, void *data)
{
@ -354,5 +355,4 @@ EXPORT_SYMBOL(pci_find_next_bus);
EXPORT_SYMBOL(pci_get_device);
EXPORT_SYMBOL(pci_get_subsys);
EXPORT_SYMBOL(pci_get_slot);
EXPORT_SYMBOL(pci_get_bus_and_slot);
EXPORT_SYMBOL(pci_get_class);

106
drivers/pci/setup-bus.c
View file

@ -71,53 +71,50 @@ static void pbus_assign_resources_sorted(const struct pci_bus *bus)
void pci_setup_cardbus(struct pci_bus *bus)
{
struct pci_dev *bridge = bus->self;
struct resource *res;
struct pci_bus_region region;
dev_info(&bridge->dev, "CardBus bridge, secondary bus %04x:%02x\n",
pci_domain_nr(bus), bus->number);
dev_info(&bridge->dev, "CardBus bridge to [bus %02x-%02x]\n",
bus->secondary, bus->subordinate);
pcibios_resource_to_bus(bridge, &region, bus->resource[0]);
if (bus->resource[0]->flags & IORESOURCE_IO) {
res = bus->resource[0];
pcibios_resource_to_bus(bridge, &region, res);
if (res->flags & IORESOURCE_IO) {
/*
* The IO resource is allocated a range twice as large as it
* would normally need. This allows us to set both IO regs.
*/
dev_info(&bridge->dev, " IO window: %#08lx-%#08lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
dev_info(&bridge->dev, " bridge window %pR\n", res);
pci_write_config_dword(bridge, PCI_CB_IO_BASE_0,
region.start);
pci_write_config_dword(bridge, PCI_CB_IO_LIMIT_0,
region.end);
}
pcibios_resource_to_bus(bridge, &region, bus->resource[1]);
if (bus->resource[1]->flags & IORESOURCE_IO) {
dev_info(&bridge->dev, " IO window: %#08lx-%#08lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
res = bus->resource[1];
pcibios_resource_to_bus(bridge, &region, res);
if (res->flags & IORESOURCE_IO) {
dev_info(&bridge->dev, " bridge window %pR\n", res);
pci_write_config_dword(bridge, PCI_CB_IO_BASE_1,
region.start);
pci_write_config_dword(bridge, PCI_CB_IO_LIMIT_1,
region.end);
}
pcibios_resource_to_bus(bridge, &region, bus->resource[2]);
if (bus->resource[2]->flags & IORESOURCE_MEM) {
dev_info(&bridge->dev, " PREFETCH window: %#08lx-%#08lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
res = bus->resource[2];
pcibios_resource_to_bus(bridge, &region, res);
if (res->flags & IORESOURCE_MEM) {
dev_info(&bridge->dev, " bridge window %pR\n", res);
pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_0,
region.start);
pci_write_config_dword(bridge, PCI_CB_MEMORY_LIMIT_0,
region.end);
}
pcibios_resource_to_bus(bridge, &region, bus->resource[3]);
if (bus->resource[3]->flags & IORESOURCE_MEM) {
dev_info(&bridge->dev, " MEM window: %#08lx-%#08lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
res = bus->resource[3];
pcibios_resource_to_bus(bridge, &region, res);
if (res->flags & IORESOURCE_MEM) {
dev_info(&bridge->dev, " bridge window %pR\n", res);
pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_1,
region.start);
pci_write_config_dword(bridge, PCI_CB_MEMORY_LIMIT_1,
@ -140,34 +137,33 @@ EXPORT_SYMBOL(pci_setup_cardbus);
static void pci_setup_bridge(struct pci_bus *bus)
{
struct pci_dev *bridge = bus->self;
struct resource *res;
struct pci_bus_region region;
u32 l, bu, lu, io_upper16;
int pref_mem64;
if (pci_is_enabled(bridge))
return;
dev_info(&bridge->dev, "PCI bridge, secondary bus %04x:%02x\n",
pci_domain_nr(bus), bus->number);
dev_info(&bridge->dev, "PCI bridge to [bus %02x-%02x]\n",
bus->secondary, bus->subordinate);
/* Set up the top and bottom of the PCI I/O segment for this bus. */
pcibios_resource_to_bus(bridge, &region, bus->resource[0]);
if (bus->resource[0]->flags & IORESOURCE_IO) {
res = bus->resource[0];
pcibios_resource_to_bus(bridge, &region, res);
if (res->flags & IORESOURCE_IO) {
pci_read_config_dword(bridge, PCI_IO_BASE, &l);
l &= 0xffff0000;
l |= (region.start >> 8) & 0x00f0;
l |= region.end & 0xf000;
/* Set up upper 16 bits of I/O base/limit. */
io_upper16 = (region.end & 0xffff0000) | (region.start >> 16);
dev_info(&bridge->dev, " IO window: %#04lx-%#04lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
dev_info(&bridge->dev, " bridge window %pR\n", res);
}
else {
/* Clear upper 16 bits of I/O base/limit. */
io_upper16 = 0;
l = 0x00f0;
dev_info(&bridge->dev, " IO window: disabled\n");
dev_info(&bridge->dev, " bridge window [io disabled]\n");
}
/* Temporarily disable the I/O range before updating PCI_IO_BASE. */
pci_write_config_dword(bridge, PCI_IO_BASE_UPPER16, 0x0000ffff);
@ -178,17 +174,16 @@ static void pci_setup_bridge(struct pci_bus *bus)
/* Set up the top and bottom of the PCI Memory segment
for this bus. */
pcibios_resource_to_bus(bridge, &region, bus->resource[1]);
if (bus->resource[1]->flags & IORESOURCE_MEM) {
res = bus->resource[1];
pcibios_resource_to_bus(bridge, &region, res);
if (res->flags & IORESOURCE_MEM) {
l = (region.start >> 16) & 0xfff0;
l |= region.end & 0xfff00000;
dev_info(&bridge->dev, " MEM window: %#08lx-%#08lx\n",
(unsigned long)region.start,
(unsigned long)region.end);
dev_info(&bridge->dev, " bridge window %pR\n", res);
}
else {
l = 0x0000fff0;
dev_info(&bridge->dev, " MEM window: disabled\n");
dev_info(&bridge->dev, " bridge window [mem disabled]\n");
}
pci_write_config_dword(bridge, PCI_MEMORY_BASE, l);
@ -198,34 +193,27 @@ static void pci_setup_bridge(struct pci_bus *bus)
pci_write_config_dword(bridge, PCI_PREF_LIMIT_UPPER32, 0);
/* Set up PREF base/limit. */
pref_mem64 = 0;
bu = lu = 0;
pcibios_resource_to_bus(bridge, &region, bus->resource[2]);
if (bus->resource[2]->flags & IORESOURCE_PREFETCH) {
int width = 8;
res = bus->resource[2];
pcibios_resource_to_bus(bridge, &region, res);
if (res->flags & IORESOURCE_PREFETCH) {
l = (region.start >> 16) & 0xfff0;
l |= region.end & 0xfff00000;
if (bus->resource[2]->flags & IORESOURCE_MEM_64) {
pref_mem64 = 1;
if (res->flags & IORESOURCE_MEM_64) {
bu = upper_32_bits(region.start);
lu = upper_32_bits(region.end);
width = 16;
}
dev_info(&bridge->dev, " PREFETCH window: %#0*llx-%#0*llx\n",
width, (unsigned long long)region.start,
width, (unsigned long long)region.end);
dev_info(&bridge->dev, " bridge window %pR\n", res);
}
else {
l = 0x0000fff0;
dev_info(&bridge->dev, " PREFETCH window: disabled\n");
dev_info(&bridge->dev, " bridge window [mem pref disabled]\n");
}
pci_write_config_dword(bridge, PCI_PREF_MEMORY_BASE, l);
if (pref_mem64) {
/* Set the upper 32 bits of PREF base & limit. */
pci_write_config_dword(bridge, PCI_PREF_BASE_UPPER32, bu);
pci_write_config_dword(bridge, PCI_PREF_LIMIT_UPPER32, lu);
}
pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, bus->bridge_ctl);
}
@ -345,6 +333,10 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size)
#endif
size = ALIGN(size + size1, 4096);
if (!size) {
if (b_res->start || b_res->end)
dev_info(&bus->self->dev, "disabling bridge window "
"%pR to [bus %02x-%02x] (unused)\n", b_res,
bus->secondary, bus->subordinate);
b_res->flags = 0;
return;
}
@ -390,8 +382,9 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
align = pci_resource_alignment(dev, r);
order = __ffs(align) - 20;
if (order > 11) {
dev_warn(&dev->dev, "BAR %d bad alignment %llx: "
"%pR\n", i, (unsigned long long)align, r);
dev_warn(&dev->dev, "disabling BAR %d: %pR "
"(bad alignment %#llx)\n", i, r,
(unsigned long long) align);
r->flags = 0;
continue;
}
@ -425,6 +418,10 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
}
size = ALIGN(size, min_align);
if (!size) {
if (b_res->start || b_res->end)
dev_info(&bus->self->dev, "disabling bridge window "
"%pR to [bus %02x-%02x] (unused)\n", b_res,
bus->secondary, bus->subordinate);
b_res->flags = 0;
return 1;
}
@ -582,10 +579,7 @@ static void pci_bus_dump_res(struct pci_bus *bus)
if (!res || !res->end)
continue;
dev_printk(KERN_DEBUG, &bus->dev, "resource %d %s %pR\n", i,
(res->flags & IORESOURCE_IO) ? "io: " :
((res->flags & IORESOURCE_PREFETCH)? "pref mem":"mem:"),
res);
dev_printk(KERN_DEBUG, &bus->dev, "resource %d %pR\n", i, res);
}
}

68
drivers/pci/setup-res.c
View file

@ -51,12 +51,6 @@ void pci_update_resource(struct pci_dev *dev, int resno)
pcibios_resource_to_bus(dev, &region, res);
dev_dbg(&dev->dev, "BAR %d: got res %pR bus [%#llx-%#llx] "
"flags %#lx\n", resno, res,
(unsigned long long)region.start,
(unsigned long long)region.end,
(unsigned long)res->flags);
new = region.start | (res->flags & PCI_REGION_FLAG_MASK);
if (res->flags & IORESOURCE_IO)
mask = (u32)PCI_BASE_ADDRESS_IO_MASK;
@ -91,9 +85,9 @@ void pci_update_resource(struct pci_dev *dev, int resno)
}
}
res->flags &= ~IORESOURCE_UNSET;
dev_dbg(&dev->dev, "BAR %d: moved to bus [%#llx-%#llx] flags %#lx\n",
resno, (unsigned long long)region.start,
(unsigned long long)region.end, res->flags);
dev_info(&dev->dev, "BAR %d: set to %pR (PCI address [%#llx-%#llx]\n",
resno, res, (unsigned long long)region.start,
(unsigned long long)region.end);
}
int pci_claim_resource(struct pci_dev *dev, int resource)
@ -103,20 +97,17 @@ int pci_claim_resource(struct pci_dev *dev, int resource)
int err;
root = pci_find_parent_resource(dev, res);
err = -EINVAL;
if (root != NULL)
err = request_resource(root, res);
if (err) {
const char *dtype = resource < PCI_BRIDGE_RESOURCES ? "device" : "bridge";
dev_err(&dev->dev, "BAR %d: %s of %s %pR\n",
resource,
root ? "address space collision on" :
"no parent found for",
dtype, res);
if (!root) {
dev_err(&dev->dev, "no compatible bridge window for %pR\n",
res);
return -EINVAL;
}
err = request_resource(root, res);
if (err)
dev_err(&dev->dev,
"address space collision: %pR already in use\n", res);
return err;
}
EXPORT_SYMBOL(pci_claim_resource);
@ -124,7 +115,7 @@ EXPORT_SYMBOL(pci_claim_resource);
#ifdef CONFIG_PCI_QUIRKS
void pci_disable_bridge_window(struct pci_dev *dev)
{
dev_dbg(&dev->dev, "Disabling bridge window.\n");
dev_info(&dev->dev, "disabling bridge mem windows\n");
/* MMIO Base/Limit */
pci_write_config_dword(dev, PCI_MEMORY_BASE, 0x0000fff0);
@ -165,6 +156,7 @@ static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev,
if (!ret) {
res->flags &= ~IORESOURCE_STARTALIGN;
dev_info(&dev->dev, "BAR %d: assigned %pR\n", resno, res);
if (resno < PCI_BRIDGE_RESOURCES)
pci_update_resource(dev, resno);
}
@ -178,12 +170,12 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
resource_size_t align;
struct pci_bus *bus;
int ret;
char *type;
align = pci_resource_alignment(dev, res);
if (!align) {
dev_info(&dev->dev, "BAR %d: can't allocate resource (bogus "
"alignment) %pR flags %#lx\n",
resno, res, res->flags);
dev_info(&dev->dev, "BAR %d: can't assign %pR "
"(bogus alignment)\n", resno, res);
return -EINVAL;
}
@ -198,9 +190,20 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
break;
}
if (ret)
dev_info(&dev->dev, "BAR %d: can't allocate %s resource %pR\n",
resno, res->flags & IORESOURCE_IO ? "I/O" : "mem", res);
if (ret) {
if (res->flags & IORESOURCE_MEM)
if (res->flags & IORESOURCE_PREFETCH)
type = "mem pref";
else
type = "mem";
else if (res->flags & IORESOURCE_IO)
type = "io";
else
type = "unknown";
dev_info(&dev->dev,
"BAR %d: can't assign %s (size %#llx)\n",
resno, type, (unsigned long long) resource_size(res));
}
return ret;
}
@ -225,9 +228,8 @@ void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head)
r_align = pci_resource_alignment(dev, r);
if (!r_align) {
dev_warn(&dev->dev, "BAR %d: bogus alignment "
"%pR flags %#lx\n",
i, r, r->flags);
dev_warn(&dev->dev, "BAR %d: %pR has bogus alignment\n",
i, r);
continue;
}
for (list = head; ; list = list->next) {
@ -274,8 +276,8 @@ int pci_enable_resources(struct pci_dev *dev, int mask)
continue;
if (!r->parent) {
dev_err(&dev->dev, "device not available because of "
"BAR %d %pR collisions\n", i, r);
dev_err(&dev->dev, "device not available "
"(can't reserve %pR)\n", r);
return -EINVAL;
}

23
drivers/pcmcia/cardbus.c
View file

@ -184,26 +184,33 @@ fail:
=====================================================================*/
/*
* Since there is only one interrupt available to CardBus
* devices, all devices downstream of this device must
* be using this IRQ.
*/
static void cardbus_assign_irqs(struct pci_bus *bus, int irq)
static void cardbus_config_irq_and_cls(struct pci_bus *bus, int irq)
{
struct pci_dev *dev;
list_for_each_entry(dev, &bus->devices, bus_list) {
u8 irq_pin;
/*
* Since there is only one interrupt available to
* CardBus devices, all devices downstream of this
* device must be using this IRQ.
*/
pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &irq_pin);
if (irq_pin) {
dev->irq = irq;
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
}
/*
* Some controllers transfer very slowly with 0 CLS.
* Configure it. This may fail as CLS configuration
* is mandatory only for MWI.
*/
pci_set_cacheline_size(dev);
if (dev->subordinate)
cardbus_assign_irqs(dev->subordinate, irq);
cardbus_config_irq_and_cls(dev->subordinate, irq);
}
}
@ -228,7 +235,7 @@ int __ref cb_alloc(struct pcmcia_socket * s)
*/
pci_bus_size_bridges(bus);
pci_bus_assign_resources(bus);
cardbus_assign_irqs(bus, s->pci_irq);
cardbus_config_irq_and_cls(bus, s->pci_irq);
/* socket specific tune function */
if (s->tune_bridge)

13
drivers/pnp/quirks.c
View file

@ -285,15 +285,10 @@ static void quirk_system_pci_resources(struct pnp_dev *dev)
* the PCI region, and that might prevent a PCI
* driver from requesting its resources.
*/
dev_warn(&dev->dev, "%s resource "
"(0x%llx-0x%llx) overlaps %s BAR %d "
"(0x%llx-0x%llx), disabling\n",
pnp_resource_type_name(res),
(unsigned long long) pnp_start,
(unsigned long long) pnp_end,
pci_name(pdev), i,
(unsigned long long) pci_start,
(unsigned long long) pci_end);
dev_warn(&dev->dev,
"disabling %pR because it overlaps "
"%s BAR %d %pR\n", res,
pci_name(pdev), i, &pdev->resource[i]);
res->flags |= IORESOURCE_DISABLED;
}
}

10
drivers/pnp/resource.c
View file

@ -517,7 +517,7 @@ struct pnp_resource *pnp_add_irq_resource(struct pnp_dev *dev, int irq,
res->start = irq;
res->end = irq;
pnp_dbg(&dev->dev, " add irq %d flags %#x\n", irq, flags);
pnp_dbg(&dev->dev, " add %pr\n", res);
return pnp_res;
}
@ -538,7 +538,7 @@ struct pnp_resource *pnp_add_dma_resource(struct pnp_dev *dev, int dma,
res->start = dma;
res->end = dma;
pnp_dbg(&dev->dev, " add dma %d flags %#x\n", dma, flags);
pnp_dbg(&dev->dev, " add %pr\n", res);
return pnp_res;
}
@ -562,8 +562,7 @@ struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev,
res->start = start;
res->end = end;
pnp_dbg(&dev->dev, " add io %#llx-%#llx flags %#x\n",
(unsigned long long) start, (unsigned long long) end, flags);
pnp_dbg(&dev->dev, " add %pr\n", res);
return pnp_res;
}
@ -587,8 +586,7 @@ struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
res->start = start;
res->end = end;
pnp_dbg(&dev->dev, " add mem %#llx-%#llx flags %#x\n",
(unsigned long long) start, (unsigned long long) end, flags);
pnp_dbg(&dev->dev, " add %pr\n", res);
return pnp_res;
}

41
drivers/pnp/support.c
View file

@ -75,47 +75,14 @@ char *pnp_resource_type_name(struct resource *res)
void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc)
{
char buf[128];
int len;
struct pnp_resource *pnp_res;
struct resource *res;
if (list_empty(&dev->resources)) {
if (list_empty(&dev->resources))
pnp_dbg(&dev->dev, "%s: no current resources\n", desc);
return;
}
else {
pnp_dbg(&dev->dev, "%s: current resources:\n", desc);
list_for_each_entry(pnp_res, &dev->resources, list) {
res = &pnp_res->res;
len = 0;
len += scnprintf(buf + len, sizeof(buf) - len, " %-3s ",
pnp_resource_type_name(res));
if (res->flags & IORESOURCE_DISABLED) {
pnp_dbg(&dev->dev, "%sdisabled\n", buf);
continue;
}
switch (pnp_resource_type(res)) {
case IORESOURCE_IO:
case IORESOURCE_MEM:
len += scnprintf(buf + len, sizeof(buf) - len,
"%#llx-%#llx flags %#lx",
(unsigned long long) res->start,
(unsigned long long) res->end,
res->flags);
break;
case IORESOURCE_IRQ:
case IORESOURCE_DMA:
len += scnprintf(buf + len, sizeof(buf) - len,
"%lld flags %#lx",
(unsigned long long) res->start,
res->flags);
break;
}
pnp_dbg(&dev->dev, "%s\n", buf);
list_for_each_entry(pnp_res, &dev->resources, list)
pnp_dbg(&dev->dev, "%pr\n", &pnp_res->res);
}
}

12
drivers/pnp/system.c
View file

@ -22,11 +22,11 @@ static const struct pnp_device_id pnp_dev_table[] = {
{"", 0}
};
static void reserve_range(struct pnp_dev *dev, resource_size_t start,
resource_size_t end, int port)
static void reserve_range(struct pnp_dev *dev, struct resource *r, int port)
{
char *regionid;
const char *pnpid = dev_name(&dev->dev);
resource_size_t start = r->start, end = r->end;
struct resource *res;
regionid = kmalloc(16, GFP_KERNEL);
@ -48,9 +48,7 @@ static void reserve_range(struct pnp_dev *dev, resource_size_t start,
* example do reserve stuff they know about too, so we may well
* have double reservations.
*/
dev_info(&dev->dev, "%s range 0x%llx-0x%llx %s reserved\n",
port ? "ioport" : "iomem",
(unsigned long long) start, (unsigned long long) end,
dev_info(&dev->dev, "%pR %s reserved\n", r,
res ? "has been" : "could not be");
}
@ -77,14 +75,14 @@ static void reserve_resources_of_dev(struct pnp_dev *dev)
if (res->end < res->start)
continue; /* invalid */
reserve_range(dev, res->start, res->end, 1);
reserve_range(dev, res, 1);
}
for (i = 0; (res = pnp_get_resource(dev, IORESOURCE_MEM, i)); i++) {
if (res->flags & IORESOURCE_DISABLED)
continue;
reserve_range(dev, res->start, res->end, 0);
reserve_range(dev, res, 0);
}
}

3
drivers/video/xen-fbfront.c
View file

@ -25,7 +25,10 @@
#include <linux/module.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <asm/xen/hypervisor.h>
#include <xen/xen.h>
#include <xen/events.h>
#include <xen/page.h>
#include <xen/interface/io/fbif.h>

2
drivers/xen/balloon.c
View file

@ -52,6 +52,8 @@
#include <asm/xen/hypervisor.h>
#include <asm/xen/hypercall.h>
#include <xen/xen.h>
#include <xen/interface/xen.h>
#include <xen/interface/memory.h>
#include <xen/xenbus.h>

1
drivers/xen/cpu_hotplug.c
View file

@ -1,5 +1,6 @@
#include <linux/notifier.h>
#include <xen/xen.h>
#include <xen/xenbus.h>
#include <asm/xen/hypervisor.h>

2
drivers/xen/evtchn.c
View file

@ -48,6 +48,8 @@
#include <linux/gfp.h>
#include <linux/mutex.h>
#include <linux/cpu.h>
#include <xen/xen.h>
#include <xen/events.h>
#include <xen/evtchn.h>
#include <asm/xen/hypervisor.h>

1
drivers/xen/grant-table.c
View file

@ -37,6 +37,7 @@
#include <linux/vmalloc.h>
#include <linux/uaccess.h>
#include <xen/xen.h>
#include <xen/interface/xen.h>
#include <xen/page.h>
#include <xen/grant_table.h>

1
drivers/xen/sys-hypervisor.c
View file

@ -14,6 +14,7 @@
#include <asm/xen/hypervisor.h>
#include <asm/xen/hypercall.h>
#include <xen/xen.h>
#include <xen/xenbus.h>
#include <xen/interface/xen.h>
#include <xen/interface/version.h>

2
drivers/xen/xenbus/xenbus_probe.c
View file

@ -49,6 +49,8 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/xen/hypervisor.h>
#include <xen/xen.h>
#include <xen/xenbus.h>
#include <xen/events.h>
#include <xen/page.h>

2
drivers/xen/xenfs/super.c
View file

@ -13,6 +13,8 @@
#include <linux/fs.h>
#include <linux/magic.h>
#include <xen/xen.h>
#include "xenfs.h"
#include <asm/xen/hypervisor.h>

12
include/acpi/acpi_hest.h Normal file
View file

@ -0,0 +1,12 @@
#ifndef __ACPI_HEST_H
#define __ACPI_HEST_H
#include <linux/pci.h>
#ifdef CONFIG_ACPI
extern int acpi_hest_firmware_first_pci(struct pci_dev *pci);
#else
static inline int acpi_hest_firmware_first_pci(struct pci_dev *pci) { return 0; }
#endif
#endif

42
include/linux/pci.h
View file

@ -218,6 +218,7 @@ struct pci_dev {
unsigned int class; /* 3 bytes: (base,sub,prog-if) */
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; /* PCI-E device/port type */
u8 rom_base_reg; /* which config register controls the ROM */
u8 pin; /* which interrupt pin this device uses */
@ -280,6 +281,7 @@ struct pci_dev {
unsigned int is_virtfn:1;
unsigned int reset_fn:1;
unsigned int is_hotplug_bridge:1;
unsigned int aer_firmware_first:1;
pci_dev_flags_t dev_flags;
atomic_t enable_cnt; /* pci_enable_device has been called */
@ -635,7 +637,13 @@ struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
unsigned int ss_vendor, unsigned int ss_device,
struct pci_dev *from);
struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn);
struct pci_dev *pci_get_bus_and_slot(unsigned int bus, unsigned int devfn);
struct pci_dev *pci_get_domain_bus_and_slot(int domain, unsigned int bus,
unsigned int devfn);
static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
unsigned int devfn)
{
return pci_get_domain_bus_and_slot(0, bus, devfn);
}
struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from);
int pci_dev_present(const struct pci_device_id *ids);
@ -701,6 +709,7 @@ void pci_disable_device(struct pci_dev *dev);
void pci_set_master(struct pci_dev *dev);
void pci_clear_master(struct pci_dev *dev);
int pci_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state);
int pci_set_cacheline_size(struct pci_dev *dev);
#define HAVE_PCI_SET_MWI
int __must_check pci_set_mwi(struct pci_dev *dev);
int pci_try_set_mwi(struct pci_dev *dev);
@ -1246,6 +1255,8 @@ extern int pci_pci_problems;
extern unsigned long pci_cardbus_io_size;
extern unsigned long pci_cardbus_mem_size;
extern u8 pci_dfl_cache_line_size;
extern u8 pci_cache_line_size;
extern unsigned long pci_hotplug_io_size;
extern unsigned long pci_hotplug_mem_size;
@ -1290,5 +1301,34 @@ extern void pci_hp_create_module_link(struct pci_slot *pci_slot);
extern void pci_hp_remove_module_link(struct pci_slot *pci_slot);
#endif
/**
* pci_pcie_cap - get the saved PCIe capability offset
* @dev: PCI device
*
* PCIe capability offset is calculated at PCI device initialization
* time and saved in the data structure. This function returns saved
* PCIe capability offset. Using this instead of pci_find_capability()
* reduces unnecessary search in the PCI configuration space. If you
* need to calculate PCIe capability offset from raw device for some
* reasons, please use pci_find_capability() instead.
*/
static inline int pci_pcie_cap(struct pci_dev *dev)
{
return dev->pcie_cap;
}
/**
* pci_is_pcie - check if the PCI device is PCI Express capable
* @dev: PCI device
*
* Retrun true if the PCI device is PCI Express capable, false otherwise.
*/
static inline bool pci_is_pcie(struct pci_dev *dev)
{
return !!pci_pcie_cap(dev);
}
void pci_request_acs(void);
#endif /* __KERNEL__ */
#endif /* LINUX_PCI_H */

18
include/linux/pci_regs.h
View file

@ -365,6 +365,11 @@
#define PCI_X_STATUS_266MHZ 0x40000000 /* 266 MHz capable */
#define PCI_X_STATUS_533MHZ 0x80000000 /* 533 MHz capable */
/* PCI Bridge Subsystem ID registers */
#define PCI_SSVID_VENDOR_ID 4 /* PCI-Bridge subsystem vendor id register */
#define PCI_SSVID_DEVICE_ID 6 /* PCI-Bridge subsystem device id register */
/* PCI Express capability registers */
#define PCI_EXP_FLAGS 2 /* Capabilities register */
@ -502,6 +507,7 @@
#define PCI_EXT_CAP_ID_VC 2
#define PCI_EXT_CAP_ID_DSN 3
#define PCI_EXT_CAP_ID_PWR 4
#define PCI_EXT_CAP_ID_ACS 13
#define PCI_EXT_CAP_ID_ARI 14
#define PCI_EXT_CAP_ID_ATS 15
#define PCI_EXT_CAP_ID_SRIOV 16
@ -662,4 +668,16 @@
#define PCI_SRIOV_VFM_MO 0x2 /* Active.MigrateOut */
#define PCI_SRIOV_VFM_AV 0x3 /* Active.Available */
/* Access Control Service */
#define PCI_ACS_CAP 0x04 /* ACS Capability Register */
#define PCI_ACS_SV 0x01 /* Source Validation */
#define PCI_ACS_TB 0x02 /* Translation Blocking */
#define PCI_ACS_RR 0x04 /* P2P Request Redirect */
#define PCI_ACS_CR 0x08 /* P2P Completion Redirect */
#define PCI_ACS_UF 0x10 /* Upstream Forwarding */
#define PCI_ACS_EC 0x20 /* P2P Egress Control */
#define PCI_ACS_DT 0x40 /* Direct Translated P2P */
#define PCI_ACS_CTRL 0x06 /* ACS Control Register */
#define PCI_ACS_EGRESS_CTL_V 0x08 /* ACS Egress Control Vector */
#endif /* LINUX_PCI_REGS_H */

16
include/linux/pcieport_if.h
View file

@ -10,10 +10,7 @@
#define _PCIEPORT_IF_H_
/* Port Type */
#define PCIE_RC_PORT 4 /* Root port of RC */
#define PCIE_SW_UPSTREAM_PORT 5 /* Upstream port of Switch */
#define PCIE_SW_DOWNSTREAM_PORT 6 /* Downstream port of Switch */
#define PCIE_ANY_PORT 7
#define PCIE_ANY_PORT (~0)
/* Service Type */
#define PCIE_PORT_SERVICE_PME_SHIFT 0 /* Power Management Event */
@ -25,17 +22,6 @@
#define PCIE_PORT_SERVICE_VC_SHIFT 3 /* Virtual Channel */
#define PCIE_PORT_SERVICE_VC (1 << PCIE_PORT_SERVICE_VC_SHIFT)
/* Root/Upstream/Downstream Port's Interrupt Mode */
#define PCIE_PORT_NO_IRQ (-1)
#define PCIE_PORT_INTx_MODE 0
#define PCIE_PORT_MSI_MODE 1
#define PCIE_PORT_MSIX_MODE 2
struct pcie_port_data {
int port_type; /* Type of the port */
int port_irq_mode; /* [0:INTx | 1:MSI | 2:MSI-X] */
};
struct pcie_device {
int irq; /* Service IRQ/MSI/MSI-X Vector */
struct pci_dev *port; /* Root/Upstream/Downstream Port */

32
include/xen/xen.h Normal file
View file

@ -0,0 +1,32 @@
#ifndef _XEN_XEN_H
#define _XEN_XEN_H
enum xen_domain_type {
XEN_NATIVE, /* running on bare hardware */
XEN_PV_DOMAIN, /* running in a PV domain */
XEN_HVM_DOMAIN, /* running in a Xen hvm domain */
};
#ifdef CONFIG_XEN
extern enum xen_domain_type xen_domain_type;
#else
#define xen_domain_type XEN_NATIVE
#endif
#define xen_domain() (xen_domain_type != XEN_NATIVE)
#define xen_pv_domain() (xen_domain() && \
xen_domain_type == XEN_PV_DOMAIN)
#define xen_hvm_domain() (xen_domain() && \
xen_domain_type == XEN_HVM_DOMAIN)
#ifdef CONFIG_XEN_DOM0
#include <xen/interface/xen.h>
#include <asm/xen/hypervisor.h>
#define xen_initial_domain() (xen_pv_domain() && \
xen_start_info->flags & SIF_INITDOMAIN)
#else /* !CONFIG_XEN_DOM0 */
#define xen_initial_domain() (0)
#endif /* CONFIG_XEN_DOM0 */
#endif /* _XEN_XEN_H */

26
kernel/resource.c
View file

@ -308,35 +308,37 @@ static int find_resource(struct resource *root, struct resource *new,
void *alignf_data)
{
struct resource *this = root->child;
resource_size_t start, end;
new->start = root->start;
start = root->start;
/*
* Skip past an allocated resource that starts at 0, since the assignment
* of this->start - 1 to new->end below would cause an underflow.
*/
if (this && this->start == 0) {
new->start = this->end + 1;
start = this->end + 1;
this = this->sibling;
}
for(;;) {
if (this)
new->end = this->start - 1;
end = this->start - 1;
else
new->end = root->end;
if (new->start < min)
new->start = min;
if (new->end > max)
new->end = max;
new->start = ALIGN(new->start, align);
end = root->end;
if (start < min)
start = min;
if (end > max)
end = max;
start = ALIGN(start, align);
if (alignf)
alignf(alignf_data, new, size, align);
if (new->start < new->end && new->end - new->start >= size - 1) {
new->end = new->start + size - 1;
if (start < end && end - start >= size - 1) {
new->start = start;
new->end = start + size - 1;
return 0;
}
if (!this)
break;
new->start = this->end + 1;
start = this->end + 1;
this = this->sibling;
}
return -EBUSY;

87
lib/vsprintf.c
View file

@ -595,37 +595,89 @@ static char *symbol_string(char *buf, char *end, void *ptr,
}
static char *resource_string(char *buf, char *end, struct resource *res,
struct printf_spec spec)
struct printf_spec spec, const char *fmt)
{
#ifndef IO_RSRC_PRINTK_SIZE
#define IO_RSRC_PRINTK_SIZE 4
#define IO_RSRC_PRINTK_SIZE 6
#endif
#ifndef MEM_RSRC_PRINTK_SIZE
#define MEM_RSRC_PRINTK_SIZE 8
#define MEM_RSRC_PRINTK_SIZE 10
#endif
struct printf_spec num_spec = {
struct printf_spec hex_spec = {
.base = 16,
.precision = -1,
.flags = SPECIAL | SMALL | ZEROPAD,
};
/* room for the actual numbers, the two "0x", -, [, ] and the final zero */
char sym[4*sizeof(resource_size_t) + 8];
char *p = sym, *pend = sym + sizeof(sym);
int size = -1;
struct printf_spec dec_spec = {
.base = 10,
.precision = -1,
.flags = 0,
};
struct printf_spec str_spec = {
.field_width = -1,
.precision = 10,
.flags = LEFT,
};
struct printf_spec flag_spec = {
.base = 16,
.precision = -1,
.flags = SPECIAL | SMALL,
};
if (res->flags & IORESOURCE_IO)
/* 32-bit res (sizeof==4): 10 chars in dec, 10 in hex ("0x" + 8)
* 64-bit res (sizeof==8): 20 chars in dec, 18 in hex ("0x" + 16) */
#define RSRC_BUF_SIZE ((2 * sizeof(resource_size_t)) + 4)
#define FLAG_BUF_SIZE (2 * sizeof(res->flags))
#define DECODED_BUF_SIZE sizeof("[mem - 64bit pref disabled]")
#define RAW_BUF_SIZE sizeof("[mem - flags 0x]")
char sym[max(2*RSRC_BUF_SIZE + DECODED_BUF_SIZE,
2*RSRC_BUF_SIZE + FLAG_BUF_SIZE + RAW_BUF_SIZE)];
char *p = sym, *pend = sym + sizeof(sym);
int size = -1, addr = 0;
int decode = (fmt[0] == 'R') ? 1 : 0;
if (res->flags & IORESOURCE_IO) {
size = IO_RSRC_PRINTK_SIZE;
else if (res->flags & IORESOURCE_MEM)
addr = 1;
} else if (res->flags & IORESOURCE_MEM) {
size = MEM_RSRC_PRINTK_SIZE;
addr = 1;
}
*p++ = '[';
num_spec.field_width = size;
p = number(p, pend, res->start, num_spec);
if (res->flags & IORESOURCE_IO)
p = string(p, pend, "io ", str_spec);
else if (res->flags & IORESOURCE_MEM)
p = string(p, pend, "mem ", str_spec);
else if (res->flags & IORESOURCE_IRQ)
p = string(p, pend, "irq ", str_spec);
else if (res->flags & IORESOURCE_DMA)
p = string(p, pend, "dma ", str_spec);
else {
p = string(p, pend, "??? ", str_spec);
decode = 0;
}
hex_spec.field_width = size;
p = number(p, pend, res->start, addr ? hex_spec : dec_spec);
if (res->start != res->end) {
*p++ = '-';
p = number(p, pend, res->end, num_spec);
p = number(p, pend, res->end, addr ? hex_spec : dec_spec);
}
if (decode) {
if (res->flags & IORESOURCE_MEM_64)
p = string(p, pend, " 64bit", str_spec);
if (res->flags & IORESOURCE_PREFETCH)
p = string(p, pend, " pref", str_spec);
if (res->flags & IORESOURCE_DISABLED)
p = string(p, pend, " disabled", str_spec);
} else {
p = string(p, pend, " flags ", str_spec);
p = number(p, pend, res->flags, flag_spec);
}
*p++ = ']';
*p = 0;
*p = '\0';
return string(buf, end, sym, spec);
}
@ -801,8 +853,8 @@ static char *ip4_addr_string(char *buf, char *end, const u8 *addr,
* - 'f' For simple symbolic function names without offset
* - 'S' For symbolic direct pointers with offset
* - 's' For symbolic direct pointers without offset
* - 'R' For a struct resource pointer, it prints the range of
* addresses (not the name nor the flags)
* - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
* - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201]
* - 'M' For a 6-byte MAC address, it prints the address in the
* usual colon-separated hex notation
* - 'm' For a 6-byte MAC address, it prints the hex address without colons
@ -833,7 +885,8 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr,
case 'S':
return symbol_string(buf, end, ptr, spec, *fmt);
case 'R':
return resource_string(buf, end, ptr, spec);
case 'r':
return resource_string(buf, end, ptr, spec, fmt);
case 'M': /* Colon separated: 00:01:02:03:04:05 */
case 'm': /* Contiguous: 000102030405 */
return mac_address_string(buf, end, ptr, spec, fmt);