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authorBorislav Petkov <bp@amd64.org>2011-08-05 18:01:16 (GMT)
committerH. Peter Anvin <hpa@linux.intel.com>2011-08-05 19:26:49 (GMT)
commita110b5ec7371592eac856ac5c22dc7b518952d44 (patch)
treefc2ec00868158cd2a3613a30d88e775a6d00205f /arch/x86/kernel
parentdfb09f9b7ab03fd367740e541a5caf830ed56726 (diff)
downloadlinux-fsl-qoriq-a110b5ec7371592eac856ac5c22dc7b518952d44.tar.xz
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>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/cpu/common.c3
-rw-r--r--arch/x86/kernel/cpu/cpu.h1
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 22a073d..8ed394a 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 e765633..1b22dcc 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);