for AMD Fam10h, it we read mmconf from MSR early, we should just trust it
because we check it and correct it already.
so skip the reject check there.
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
arch/x86/pci/mmconfig-shared.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
Index: linux-2.6/arch/x86/pci/mmconfig-shared.c
===================================================================
--- linux-2.6.orig/arch/x86/pci/mmconfig-shared.c
+++ linux-2.6/arch/x86/pci/mmconfig-shared.c
@@ -168,6 +168,7 @@ static const char __init *pci_mmcfg_inte
return "Intel Corporation 945G/GZ/P/PL Express Memory Controller Hub";
}
+static int __initdata amd_fam10h_mmconf_found_via_hostbridge;
static const char __init *pci_mmcfg_amd_fam10h(void)
{
u32 low, high, address;
@@ -215,6 +216,8 @@ static const char __init *pci_mmcfg_amd_
return NULL;
}
+ amd_fam10h_mmconf_found_via_hostbridge = 1;
+
return "AMD Family 10h NB";
}
@@ -606,7 +609,12 @@ static void __init __pci_mmcfg_init(int
if (!known_bridge)
acpi_sfi_table_parse(ACPI_SIG_MCFG, pci_parse_mcfg);
- pci_mmcfg_reject_broken(early);
+ /*
+ * if it is amd fam10h, and that is read from msr,
+ * we don't need check them again.
+ */
+ if (!amd_fam10h_mmconf_found_via_hostbridge)
+ pci_mmcfg_reject_broken(early);
if (list_empty(&pci_mmcfg_list))
return;
--
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