Messages in this thread Patch in this message | | | From | John Keller <> | Subject | [RESEND] [PATCH] x86: Allow MMCONFIG above 4GB on x86_64 | Date | Thu, 10 Jul 2008 12:51:37 -0500 (CDT) |
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SGI UV will have MMCFG base addresses that are greater than 4GB (32 bits).
Signed-off-by: John Keller <jpk@sgi.com> ---
Resend #1: Use CONFIG_RESOURCES_64BIT instead of CONFIG_X86_64.
A similar patch was submitted over a year ago, but apparently was not merged in.
http://marc.info/?l=linux-acpi&m=117283388212912&w=2
Index: linux-2.6/arch/x86/kernel/acpi/boot.c =================================================================== --- linux-2.6.orig/arch/x86/kernel/acpi/boot.c 2008-07-09 13:02:54.000000000 -0500 +++ linux-2.6/arch/x86/kernel/acpi/boot.c 2008-07-10 10:19:28.000000000 -0500 @@ -200,6 +200,7 @@ int __init acpi_parse_mcfg(struct acpi_t } memcpy(pci_mmcfg_config, &mcfg[1], config_size); +#ifndef CONFIG_RESOURCES_64BIT for (i = 0; i < pci_mmcfg_config_num; ++i) { if (pci_mmcfg_config[i].address > 0xFFFFFFFF) { printk(KERN_ERR PREFIX @@ -209,6 +210,7 @@ int __init acpi_parse_mcfg(struct acpi_t return -ENODEV; } } +#endif return 0; }
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