Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
x86 PCI: call dmi_check_pciprobe()
x86/pci: add pci=skip_isa_align command lines.
x86/pci: remove flag in pci_cfg_space_size_ext
x86: fix section mismatch in pci_scan_bus
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index b2dd3dc..cdd5b93 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1522,6 +1522,8 @@
This is normally done in pci_enable_device(),
so this option is a temporary workaround
for broken drivers that don't call it.
+ skip_isa_align [X86] do not align io start addr, so can
+ handle more pci cards
firmware [ARM] Do not re-enumerate the bus but instead
just use the configuration from the
bootloader. This is currently used on
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 1a9c0c6..d95de2f 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -6,45 +6,6 @@
#include <asm/numa.h>
#include "pci.h"
-static int __devinit can_skip_ioresource_align(const struct dmi_system_id *d)
-{
- pci_probe |= PCI_CAN_SKIP_ISA_ALIGN;
- printk(KERN_INFO "PCI: %s detected, can skip ISA alignment\n", d->ident);
- return 0;
-}
-
-static struct dmi_system_id acpi_pciprobe_dmi_table[] __devinitdata = {
-/*
- * Systems where PCI IO resource ISA alignment can be skipped
- * when the ISA enable bit in the bridge control is not set
- */
- {
- .callback = can_skip_ioresource_align,
- .ident = "IBM System x3800",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
- DMI_MATCH(DMI_PRODUCT_NAME, "x3800"),
- },
- },
- {
- .callback = can_skip_ioresource_align,
- .ident = "IBM System x3850",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
- DMI_MATCH(DMI_PRODUCT_NAME, "x3850"),
- },
- },
- {
- .callback = can_skip_ioresource_align,
- .ident = "IBM System x3950",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
- DMI_MATCH(DMI_PRODUCT_NAME, "x3950"),
- },
- },
- {}
-};
-
struct pci_root_info {
char *name;
unsigned int res_num;
@@ -196,8 +157,6 @@
int pxm;
#endif
- dmi_check_system(acpi_pciprobe_dmi_table);
-
if (domain && !pci_domains_supported) {
printk(KERN_WARNING "PCI: Multiple domains not supported "
"(dom %d, bus %d)\n", domain, busnum);
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 2a4d751..bfa72a9 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -90,6 +90,50 @@
rom_r->start = rom_r->end = rom_r->flags = 0;
}
+static int __devinit can_skip_ioresource_align(const struct dmi_system_id *d)
+{
+ pci_probe |= PCI_CAN_SKIP_ISA_ALIGN;
+ printk(KERN_INFO "PCI: %s detected, can skip ISA alignment\n", d->ident);
+ return 0;
+}
+
+static struct dmi_system_id can_skip_pciprobe_dmi_table[] __devinitdata = {
+/*
+ * Systems where PCI IO resource ISA alignment can be skipped
+ * when the ISA enable bit in the bridge control is not set
+ */
+ {
+ .callback = can_skip_ioresource_align,
+ .ident = "IBM System x3800",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "x3800"),
+ },
+ },
+ {
+ .callback = can_skip_ioresource_align,
+ .ident = "IBM System x3850",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "x3850"),
+ },
+ },
+ {
+ .callback = can_skip_ioresource_align,
+ .ident = "IBM System x3950",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "x3950"),
+ },
+ },
+ {}
+};
+
+void __init dmi_check_skip_isa_align(void)
+{
+ dmi_check_system(can_skip_pciprobe_dmi_table);
+}
+
/*
* Called after each bus is probed, but before its children
* are examined.
@@ -318,13 +362,16 @@
{}
};
+void __init dmi_check_pciprobe(void)
+{
+ dmi_check_system(pciprobe_dmi_table);
+}
+
struct pci_bus * __devinit pcibios_scan_root(int busnum)
{
struct pci_bus *bus = NULL;
struct pci_sysdata *sd;
- dmi_check_system(pciprobe_dmi_table);
-
while ((bus = pci_find_next_bus(bus)) != NULL) {
if (bus->number == busnum) {
/* Already scanned */
@@ -462,6 +509,9 @@
} else if (!strcmp(str, "routeirq")) {
pci_routeirq = 1;
return NULL;
+ } else if (!strcmp(str, "skip_isa_align")) {
+ pci_probe |= PCI_CAN_SKIP_ISA_ALIGN;
+ return NULL;
}
return str;
}
@@ -489,7 +539,7 @@
pcibios_disable_irq(dev);
}
-struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops, int node)
+struct pci_bus * __devinit pci_scan_bus_on_node(int busno, struct pci_ops *ops, int node)
{
struct pci_bus *bus = NULL;
struct pci_sysdata *sd;
@@ -512,7 +562,7 @@
return bus;
}
-struct pci_bus *pci_scan_bus_with_sysdata(int busno)
+struct pci_bus * __devinit pci_scan_bus_with_sysdata(int busno)
{
return pci_scan_bus_on_node(busno, &pci_root_ops, -1);
}
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index b60b2ab..ff3a6a3 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -502,7 +502,7 @@
*/
static void fam10h_pci_cfg_space_size(struct pci_dev *dev)
{
- dev->cfg_size = pci_cfg_space_size_ext(dev, 0);
+ dev->cfg_size = pci_cfg_space_size_ext(dev);
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x1200, fam10h_pci_cfg_space_size);
diff --git a/arch/x86/pci/init.c b/arch/x86/pci/init.c
index dd30c60..e70b9c5 100644
--- a/arch/x86/pci/init.c
+++ b/arch/x86/pci/init.c
@@ -33,6 +33,10 @@
printk(KERN_ERR
"PCI: Fatal: No config space access function found\n");
+ dmi_check_pciprobe();
+
+ dmi_check_skip_isa_align();
+
return 0;
}
arch_initcall(pci_access_init);
diff --git a/arch/x86/pci/pci.h b/arch/x86/pci/pci.h
index c58805a..f3972b1 100644
--- a/arch/x86/pci/pci.h
+++ b/arch/x86/pci/pci.h
@@ -38,6 +38,9 @@
pci_dmi_bf,
};
+extern void __init dmi_check_pciprobe(void);
+extern void __init dmi_check_skip_isa_align(void);
+
/* pci-i386.c */
extern unsigned int pcibios_max_latency;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 4a55bf3..3706ce7 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -842,26 +842,10 @@
* reading the dword at 0x100 which must either be 0 or a valid extended
* capability header.
*/
-int pci_cfg_space_size_ext(struct pci_dev *dev, unsigned check_exp_pcix)
+int pci_cfg_space_size_ext(struct pci_dev *dev)
{
- int pos;
u32 status;
- if (!check_exp_pcix)
- goto skip;
-
- pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
- if (!pos) {
- pos = pci_find_capability(dev, PCI_CAP_ID_PCIX);
- if (!pos)
- goto fail;
-
- pci_read_config_dword(dev, pos + PCI_X_STATUS, &status);
- if (!(status & (PCI_X_STATUS_266MHZ | PCI_X_STATUS_533MHZ)))
- goto fail;
- }
-
- skip:
if (pci_read_config_dword(dev, 256, &status) != PCIBIOS_SUCCESSFUL)
goto fail;
if (status == 0xffffffff)
@@ -875,7 +859,24 @@
int pci_cfg_space_size(struct pci_dev *dev)
{
- return pci_cfg_space_size_ext(dev, 1);
+ int pos;
+ u32 status;
+
+ pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
+ if (!pos) {
+ pos = pci_find_capability(dev, PCI_CAP_ID_PCIX);
+ if (!pos)
+ goto fail;
+
+ pci_read_config_dword(dev, pos + PCI_X_STATUS, &status);
+ if (!(status & (PCI_X_STATUS_266MHZ | PCI_X_STATUS_533MHZ)))
+ goto fail;
+ }
+
+ return pci_cfg_space_size_ext(dev);
+
+ fail:
+ return PCI_CFG_SPACE_SIZE;
}
static void pci_release_bus_bridge_dev(struct device *dev)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 96acd0d..509159b 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -44,6 +44,7 @@
#include <linux/mod_devicetable.h>
#include <linux/types.h>
+#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/list.h>
#include <linux/compiler.h>
@@ -474,7 +475,7 @@
void pci_bus_add_devices(struct pci_bus *bus);
struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus,
struct pci_ops *ops, void *sysdata);
-static inline struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops,
+static inline struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops,
void *sysdata)
{
struct pci_bus *root_bus;
@@ -666,7 +667,7 @@
void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
void *userdata);
-int pci_cfg_space_size_ext(struct pci_dev *dev, unsigned check_exp_pcix);
+int pci_cfg_space_size_ext(struct pci_dev *dev);
int pci_cfg_space_size(struct pci_dev *dev);
unsigned char pci_bus_max_busnr(struct pci_bus *bus);