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| author | Yinghai Lu <yinghai@kernel.org> | 2010-02-10 01:20:09 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-02-10 17:47:17 -0800 |
| commit | 3e3da00c01d050307e753fb7b3e84aefc16da0d0 (patch) | |
| tree | 582f5dc19c1c4d3421781e51e3ab0f4448a2315f | |
| parent | b74fd238a9cf39a81d94152f375b756bf795b4af (diff) | |
| download | linux-3e3da00c01d050307e753fb7b3e84aefc16da0d0.tar.gz linux-3e3da00c01d050307e753fb7b3e84aefc16da0d0.tar.bz2 linux-3e3da00c01d050307e753fb7b3e84aefc16da0d0.zip | |
x86/pci: AMD one chain system to use pci read out res
Found MSI amd k8 based laptops is hiding [0x70000000, 0x80000000) RAM
from e820.
enable amd one chain even for all.
-v2: use bool for found, according to Andrew
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1265793639-15071-6-git-send-email-yinghai@kernel.org>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
| -rw-r--r-- | arch/x86/pci/amd_bus.c | 7 | ||||
| -rw-r--r-- | arch/x86/pci/bus_numa.c | 5 | ||||
| -rw-r--r-- | arch/x86/pci/bus_numa.h | 1 |
3 files changed, 4 insertions, 9 deletions
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c index 2356ea18697d..ae50b8fa0c60 100644 --- a/arch/x86/pci/amd_bus.c +++ b/arch/x86/pci/amd_bus.c @@ -87,11 +87,12 @@ static int __init early_fill_mp_bus_info(void) struct range range[RANGE_NUM]; u64 val; u32 address; + bool found; if (!early_pci_allowed()) return -1; - found_all_numa_early = 0; + found = false; for (i = 0; i < ARRAY_SIZE(pci_probes); i++) { u32 id; u16 device; @@ -105,12 +106,12 @@ static int __init early_fill_mp_bus_info(void) device = (id>>16) & 0xffff; if (pci_probes[i].vendor == vendor && pci_probes[i].device == device) { - found_all_numa_early = 1; + found = true; break; } } - if (!found_all_numa_early) + if (!found) return 0; pci_root_num = 0; diff --git a/arch/x86/pci/bus_numa.c b/arch/x86/pci/bus_numa.c index 30f65cecd65f..3411687b676e 100644 --- a/arch/x86/pci/bus_numa.c +++ b/arch/x86/pci/bus_numa.c @@ -5,7 +5,6 @@ int pci_root_num; struct pci_root_info pci_root_info[PCI_ROOT_NR]; -int found_all_numa_early; void x86_pci_root_bus_res_quirks(struct pci_bus *b) { @@ -21,10 +20,6 @@ void x86_pci_root_bus_res_quirks(struct pci_bus *b) if (!pci_root_num) return; - /* for amd, if only one root bus, don't need to do anything */ - if (pci_root_num < 2 && found_all_numa_early) - return; - for (i = 0; i < pci_root_num; i++) { if (pci_root_info[i].bus_min == b->number) break; diff --git a/arch/x86/pci/bus_numa.h b/arch/x86/pci/bus_numa.h index 374ecc5ead42..f63e80294f22 100644 --- a/arch/x86/pci/bus_numa.h +++ b/arch/x86/pci/bus_numa.h @@ -20,7 +20,6 @@ struct pci_root_info { #define PCI_ROOT_NR 4 extern int pci_root_num; extern struct pci_root_info pci_root_info[PCI_ROOT_NR]; -extern int found_all_numa_early; extern void update_res(struct pci_root_info *info, resource_size_t start, resource_size_t end, unsigned long flags, int merge); |