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| author | Borislav Petkov <borislav.petkov@amd.com> | 2010-02-04 12:09:07 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-26 07:47:57 -0700 |
| commit | f8b1a072d4f260c203eb500beb70a1e1c2ff8689 (patch) | |
| tree | ccce3839d65923b64b64e5675f11071465df8ea7 | |
| parent | ad98454d28b70fafe526fbab77e67560bacde482 (diff) | |
| download | lwn-f8b1a072d4f260c203eb500beb70a1e1c2ff8689.tar.gz lwn-f8b1a072d4f260c203eb500beb70a1e1c2ff8689.zip | |
x86, cacheinfo: Remove NUMA dependency, fix for AMD Fam10h rev D1
commit f619b3d8427eb57f0134dab75b0d217325c72411 upstream.
The show/store_cache_disable routines depend unnecessarily on NUMA's
cpu_to_node and the disabling of cache indices broke when !CONFIG_NUMA.
Remove that dependency by using a helper which is always correct.
While at it, enable L3 Cache Index disable on rev D1 Istanbuls which
sport the feature too.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
LKML-Reference: <20100218184339.GG20473@aftab>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | arch/x86/kernel/cpu/intel_cacheinfo.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index 589b705e80ed..be5f5c28ddfb 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -327,7 +327,7 @@ amd_check_l3_disable(int index, struct _cpuid4_info_regs *this_leaf) /* see errata #382 and #388 */ if ((boot_cpu_data.x86 == 0x10) && - ((boot_cpu_data.x86_model < 0x9) || + ((boot_cpu_data.x86_model < 0x8) || (boot_cpu_data.x86_mask < 0x1))) return; @@ -744,7 +744,7 @@ static ssize_t show_cache_disable(struct _cpuid4_info *this_leaf, char *buf, unsigned int index) { int cpu = cpumask_first(to_cpumask(this_leaf->shared_cpu_map)); - int node = cpu_to_node(cpu); + int node = amd_get_nb_id(cpu); struct pci_dev *dev = node_to_k8_nb_misc(node); unsigned int reg = 0; @@ -771,7 +771,7 @@ static ssize_t store_cache_disable(struct _cpuid4_info *this_leaf, const char *buf, size_t count, unsigned int index) { int cpu = cpumask_first(to_cpumask(this_leaf->shared_cpu_map)); - int node = cpu_to_node(cpu); + int node = amd_get_nb_id(cpu); struct pci_dev *dev = node_to_k8_nb_misc(node); unsigned long val = 0; |