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x86/fpu: Rename fpu_detect() to fpu__detect()

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Use the fpu__*() namespace to organize FPU ops better.

Also document fpu__detect() a bit.

Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2015-04-03 11:33:52 +02:00
parent 87cdb98aff
commit 1a7dc0db71
3 changed files with 7 additions and 3 deletions
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2
arch/x86/include/asm/processor.h
View File

@ -166,7 +166,7 @@ extern const struct seq_operations cpuinfo_op;
#define cache_line_size() (boot_cpu_data.x86_cache_alignment)
extern void cpu_detect(struct cpuinfo_x86 *c);
extern void fpu_detect(struct cpuinfo_x86 *c);
extern void fpu__detect(struct cpuinfo_x86 *c);
extern void early_cpu_init(void);
extern void identify_boot_cpu(void);

2
arch/x86/kernel/cpu/common.c
View File

@ -759,7 +759,7 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
cpu_detect(c);
get_cpu_vendor(c);
get_cpu_cap(c);
fpu_detect(c);
fpu__detect(c);
if (this_cpu->c_early_init)
this_cpu->c_early_init(c);

6
arch/x86/kernel/i387.c
View File

@ -640,7 +640,11 @@ static int __init no_387(char *s)
__setup("no387", no_387);
void fpu_detect(struct cpuinfo_x86 *c)
/*
* Set the X86_FEATURE_FPU CPU-capability bit based on
* trying to execute an actual sequence of FPU instructions:
*/
void fpu__detect(struct cpuinfo_x86 *c)
{
unsigned long cr0;
u16 fsw, fcw;