diff options
| author | Borislav Petkov <bp@amd64.org> | 2011-08-05 20:01:16 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-08-05 21:26:49 +0200 |
| commit | a110b5ec7371592eac856ac5c22dc7b518952d44 (patch) | |
| tree | fc2ec00868158cd2a3613a30d88e775a6d00205f | |
| parent | x86, amd: Avoid cache aliasing penalties on AMD family 15h (diff) | |
| download | linux-a110b5ec7371592eac856ac5c22dc7b518952d44.tar.xz linux-a110b5ec7371592eac856ac5c22dc7b518952d44.zip | |
x86: Add a BSP cpu_dev helper
Add a function ptr to struct cpu_dev which is destined to be run only
once on the BSP during boot.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/r/20110805180116.GB26217@aftab
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/cpu.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 22a073d7fbff..8ed394a8eb6e 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -681,6 +681,9 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c) filter_cpuid_features(c, false); setup_smep(c); + + if (this_cpu->c_bsp_init) + this_cpu->c_bsp_init(c); } void __init early_cpu_init(void) diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h index e765633f210e..1b22dcc51af4 100644 --- a/arch/x86/kernel/cpu/cpu.h +++ b/arch/x86/kernel/cpu/cpu.h @@ -18,6 +18,7 @@ struct cpu_dev { struct cpu_model_info c_models[4]; void (*c_early_init)(struct cpuinfo_x86 *); + void (*c_bsp_init)(struct cpuinfo_x86 *); void (*c_init)(struct cpuinfo_x86 *); void (*c_identify)(struct cpuinfo_x86 *); unsigned int (*c_size_cache)(struct cpuinfo_x86 *, unsigned int); |