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authorIngo Molnar <mingo@kernel.org>2015-04-25 08:27:44 +0200
committerIngo Molnar <mingo@kernel.org>2015-05-19 15:47:43 +0200
commit067051ccd209623cb56152cf4cb06616ee2bcc5c (patch)
tree6bb46bc57a5d7a31e84bdccbc0c399b517fe397c
parent3960fccf2e22c3b3d61bd5a45b6172e66e660d8b (diff)
downloadblackbird-op-linux-067051ccd209623cb56152cf4cb06616ee2bcc5c.tar.gz
blackbird-op-linux-067051ccd209623cb56152cf4cb06616ee2bcc5c.zip
x86/fpu: Do system-wide setup from fpu__detect()
fpu__cpu_init() is called on every CPU, so it is the wrong place to call fpu__init_system() from. Call it from fpu__detect(): this is early CPU init code, but we already have CPU features detected, so we can call the system-wide FPU init code from here. 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>
-rw-r--r--arch/x86/kernel/fpu/init.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index b3ea4f86d643..6e422cf1e197 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -245,7 +245,6 @@ void fpu__init_system(void)
void fpu__cpu_init(void)
{
fpu__init_cpu();
- fpu__init_system();
}
static int __init no_387(char *s)
@@ -279,5 +278,6 @@ void fpu__detect(struct cpuinfo_x86 *c)
else
clear_cpu_cap(c, X86_FEATURE_FPU);
+ fpu__init_system();
/* The final cr0 value is set later, in fpu_init() */
}
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