diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 13:07:55 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 13:07:55 -0700 |
commit | b278240839e20fa9384ea430df463b367b90e04e (patch) | |
tree | f99f0c8cdd4cc7f177cd75440e6bd181cded7fb3 /arch/x86_64/pci/mmconfig.c | |
parent | dd77a4ee0f3981693d4229aa1d57cea9e526ff47 (diff) | |
parent | 3f75f42d7733e73aca5c78326489efd4189e0111 (diff) |
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (225 commits)
[PATCH] Don't set calgary iommu as default y
[PATCH] i386/x86-64: New Intel feature flags
[PATCH] x86: Add a cumulative thermal throttle event counter.
[PATCH] i386: Make the jiffies compares use the 64bit safe macros.
[PATCH] x86: Refactor thermal throttle processing
[PATCH] Add 64bit jiffies compares (for use with get_jiffies_64)
[PATCH] Fix unwinder warning in traps.c
[PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1
[PATCH] x86: Move direct PCI scanning functions out of line
[PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCI
[PATCH] Don't leak NT bit into next task
[PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder
[PATCH] Fix some broken white space in ia32_signal.c
[PATCH] Initialize argument registers for 32bit signal handlers.
[PATCH] Remove all traces of signal number conversion
[PATCH] Don't synchronize time reading on single core AMD systems
[PATCH] Remove outdated comment in x86-64 mmconfig code
[PATCH] Use string instructions for Core2 copy/clear
[PATCH] x86: - restore i8259A eoi status on resume
[PATCH] i386: Split multi-line printk in oops output.
...
Diffstat (limited to 'arch/x86_64/pci/mmconfig.c')
-rw-r--r-- | arch/x86_64/pci/mmconfig.c | 44 |
1 files changed, 38 insertions, 6 deletions
diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c index 3c55c76c6fd..7732f4254d2 100644 --- a/arch/x86_64/pci/mmconfig.c +++ b/arch/x86_64/pci/mmconfig.c @@ -156,15 +156,45 @@ static __init void unreachable_devices(void) addr = pci_dev_base(0, k, PCI_DEVFN(i, 0)); if (addr == NULL|| readl(addr) != val1) { set_bit(i + 32*k, fallback_slots); - printk(KERN_NOTICE - "PCI: No mmconfig possible on device %x:%x\n", - k, i); + printk(KERN_NOTICE "PCI: No mmconfig possible" + " on device %02x:%02x\n", k, i); } } } } -void __init pci_mmcfg_init(void) +static __init void pci_mmcfg_insert_resources(void) +{ +#define PCI_MMCFG_RESOURCE_NAME_LEN 19 + int i; + struct resource *res; + char *names; + unsigned num_buses; + + 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++) { + num_buses = pci_mmcfg_config[i].end_bus_number - + pci_mmcfg_config[i].start_bus_number + 1; + res->name = names; + snprintf(names, PCI_MMCFG_RESOURCE_NAME_LEN, "PCI MMCONFIG %u", + pci_mmcfg_config[i].pci_segment_group_number); + res->start = pci_mmcfg_config[i].base_address; + 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; + } +} + +void __init pci_mmcfg_init(int type) { int i; @@ -177,7 +207,9 @@ void __init pci_mmcfg_init(void) (pci_mmcfg_config[0].base_address == 0)) return; - if (!e820_all_mapped(pci_mmcfg_config[0].base_address, + /* Only do this check when type 1 works. If it doesn't work + assume we run on a Mac and always use MCFG */ + if (type == 1 && !e820_all_mapped(pci_mmcfg_config[0].base_address, pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN, E820_RESERVED)) { printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n", @@ -186,7 +218,6 @@ void __init pci_mmcfg_init(void) return; } - /* RED-PEN i386 doesn't do _nocache right now */ pci_mmcfg_virt = kmalloc(sizeof(*pci_mmcfg_virt) * pci_mmcfg_config_num, GFP_KERNEL); if (pci_mmcfg_virt == NULL) { printk("PCI: Can not allocate memory for mmconfig structures\n"); @@ -205,6 +236,7 @@ void __init pci_mmcfg_init(void) } unreachable_devices(); + pci_mmcfg_insert_resources(); raw_pci_ops = &pci_mmcfg; pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF; |