| From | Ingo Molnar <> | Subject | [PATCH 117/208] x86/fpu: Factor out fpu__init_cpu_generic() | Date | Tue, 5 May 2015 19:50:09 +0200 |
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Factor out the generic bits from fpu__init_cpu(), to create a flat sequence of per CPU initialization function calls:
fpu__init_cpu_generic(); fpu__init_cpu_xstate(); fpu__init_cpu_ctx_switch();
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: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> --- arch/x86/kernel/fpu/init.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c index cf27bbed1ba1..37e8b139dc31 100644 --- a/arch/x86/kernel/fpu/init.c +++ b/arch/x86/kernel/fpu/init.c @@ -136,9 +136,9 @@ static void fpu__init_cpu_ctx_switch(void) } /* - * Enable all supported FPU features. Called when a CPU is brought online. + * Initialize the registers found in all CPUs, CR0 and CR4: */ -void fpu__init_cpu(void) +static void fpu__init_cpu_generic(void) { unsigned long cr0; unsigned long cr4_mask = 0; @@ -163,7 +163,14 @@ void fpu__init_cpu(void) if (!cpu_has_fpu) cr0 |= X86_CR0_EM; write_cr0(cr0); +} +/* + * Enable all supported FPU features. Called when a CPU is brought online. + */ +void fpu__init_cpu(void) +{ + fpu__init_cpu_generic(); fpu__init_cpu_xstate(); fpu__init_cpu_ctx_switch(); } -- 2.1.0
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