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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-16 20:25:46 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-16 20:25:46 -0400
commitdc7c65db2845a8d17432d89252c4227a9a7cb15f (patch)
tree79030b0aaaafc04bc4303c21495134e744afc058 /arch/x86/pci/early.c
parent8a0ca91e1db5de5eb5b18cfa919d52ff8be375af (diff)
parent58b6e5538460be358fdf1286d9a2fbcfcc2cfaba (diff)
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (72 commits) Revert "x86/PCI: ACPI based PCI gap calculation" PCI: remove unnecessary volatile in PCIe hotplug struct controller x86/PCI: ACPI based PCI gap calculation PCI: include linux/pm_wakeup.h for device_set_wakeup_capable PCI PM: Fix pci_prepare_to_sleep x86/PCI: Fix PCI config space for domains > 0 Fix acpi_pm_device_sleep_wake() by providing a stub for CONFIG_PM_SLEEP=n PCI: Simplify PCI device PM code PCI PM: Introduce pci_prepare_to_sleep and pci_back_from_sleep PCI ACPI: Rework PCI handling of wake-up ACPI: Introduce new device wakeup flag 'prepared' ACPI: Introduce acpi_device_sleep_wake function PCI: rework pci_set_power_state function to call platform first PCI: Introduce platform_pci_power_manageable function ACPI: Introduce acpi_bus_power_manageable function PCI: make pci_name use dev_name PCI: handle pci_name() being const PCI: add stub for pci_set_consistent_dma_mask() PCI: remove unused arch pcibios_update_resource() functions PCI: fix pci_setup_device()'s sprinting into a const buffer ... Fixed up conflicts in various files (arch/x86/kernel/setup_64.c, arch/x86/pci/irq.c, arch/x86/pci/pci.h, drivers/acpi/sleep/main.c, drivers/pci/pci.c, drivers/pci/pci.h, include/acpi/acpi_bus.h) from x86 and ACPI updates manually.
Diffstat (limited to 'arch/x86/pci/early.c')
-rw-r--r--arch/x86/pci/early.c60
1 files changed, 59 insertions, 1 deletions
diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c
index 42df4b6606df..858dbe3399f9 100644
--- a/arch/x86/pci/early.c
+++ b/arch/x86/pci/early.c
@@ -49,7 +49,14 @@ void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val)
49{ 49{
50 PDprintk("%x writing to %x: %x\n", slot, offset, val); 50 PDprintk("%x writing to %x: %x\n", slot, offset, val);
51 outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); 51 outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
52 outb(val, 0xcfc); 52 outb(val, 0xcfc + (offset&3));
53}
54
55void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val)
56{
57 PDprintk("%x writing to %x: %x\n", slot, offset, val);
58 outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
59 outw(val, 0xcfc + (offset&2));
53} 60}
54 61
55int early_pci_allowed(void) 62int early_pci_allowed(void)
@@ -57,3 +64,54 @@ int early_pci_allowed(void)
57 return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) == 64 return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) ==
58 PCI_PROBE_CONF1; 65 PCI_PROBE_CONF1;
59} 66}
67
68void early_dump_pci_device(u8 bus, u8 slot, u8 func)
69{
70 int i;
71 int j;
72 u32 val;
73
74 printk("PCI: %02x:%02x:%02x", bus, slot, func);
75
76 for (i = 0; i < 256; i += 4) {
77 if (!(i & 0x0f))
78 printk("\n%04x:",i);
79
80 val = read_pci_config(bus, slot, func, i);
81 for (j = 0; j < 4; j++) {
82 printk(" %02x", val & 0xff);
83 val >>= 8;
84 }
85 }
86 printk("\n");
87}
88
89void early_dump_pci_devices(void)
90{
91 unsigned bus, slot, func;
92
93 if (!early_pci_allowed())
94 return;
95
96 for (bus = 0; bus < 256; bus++) {
97 for (slot = 0; slot < 32; slot++) {
98 for (func = 0; func < 8; func++) {
99 u32 class;
100 u8 type;
101 class = read_pci_config(bus, slot, func,
102 PCI_CLASS_REVISION);
103 if (class == 0xffffffff)
104 break;
105
106 early_dump_pci_device(bus, slot, func);
107
108 /* No multi-function device? */
109 type = read_pci_config_byte(bus, slot, func,
110 PCI_HEADER_TYPE);
111 if (!(type & 0x80))
112 break;
113 }
114 }
115 }
116}
117