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x86/fpu: Remove xsave_init()
Expand fpu__init_system_xstate() and fpu__init_cpu_xstate() calls into xsave_init() calls. (This will allow us to call the proper versions in higher level FPU init code later on.) No change in functionality. 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>
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@ -52,7 +52,6 @@ extern u64 xfeatures_mask;
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extern u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS];
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extern struct xsave_struct init_xstate_ctx;
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extern void xsave_init(void);
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extern void update_regset_xstate_info(unsigned int size, u64 xstate_mask);
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/* These macros all use (%edi)/(%rdi) as the single memory argument. */
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@ -98,7 +98,7 @@ static void fpstate_xstate_init_size(void)
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{
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/*
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* Note that xstate_size might be overwriten later during
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* xsave_init().
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* fpu__init_system_xstate().
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*/
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if (!cpu_has_fpu) {
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@ -146,7 +146,8 @@ void fpu__init_cpu(void)
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cr0 |= X86_CR0_EM;
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write_cr0(cr0);
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xsave_init();
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fpu__init_system_xstate();
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fpu__init_cpu_xstate();
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}
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/*
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@ -159,7 +160,8 @@ void fpu__init_system(void)
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fpu__init_cpu();
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mxcsr_feature_mask_init();
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xsave_init();
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fpu__init_system_xstate();
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fpu__init_cpu_xstate();
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eager_fpu_init();
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}
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@ -646,8 +646,7 @@ static void __init init_xstate_size(void)
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* Enable and initialize the xsave feature.
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* Called once per system bootup.
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*
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* ( Not marked __init because of false positive section warnings
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* generated by xsave_init(). )
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* ( Not marked __init because of false positive section warnings. )
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*/
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void fpu__init_system_xstate(void)
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{
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@ -713,16 +712,6 @@ void fpu__init_system_xstate(void)
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cpu_has_xsaves ? "compacted" : "standard");
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}
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/*
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* For the very first instance, this calls fpu__init_system_xstate();
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* for all subsequent instances, this calls fpu__init_cpu_xstate().
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*/
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void xsave_init(void)
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{
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fpu__init_system_xstate();
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fpu__init_cpu_xstate();
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}
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/*
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* setup_init_fpu_buf() is __init and it is OK to call it here because
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* init_xstate_ctx will be unset only once during boot.
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