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x86/fpu: Rename fpu_finit() to fpstate_init() 

Make it clear that we are initializing the in-memory FPU context area,
no the FPU registers.

Also move it to the fpu__*() namespace.

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>
hifive-unleashed-5.1
Ingo Molnar 2015-04-03 13:01:52 +02:00
parent a7c2a83364
commit c0ee2cf61b
4 changed files with 7 additions and 7 deletions
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2
arch/x86/include/asm/i387.h
View File

@ -19,8 +19,8 @@ struct pt_regs;
struct user_i387_struct;
extern int fpstate_alloc_init(struct task_struct *curr);
extern void fpstate_init(struct fpu *fpu);
extern void fpu_finit(struct fpu *fpu);
extern int dump_fpu(struct pt_regs *, struct user_i387_struct *);
extern void math_state_restore(void);

8
arch/x86/kernel/i387.c
View File

@ -225,7 +225,7 @@ void fpu_init(void)
eager_fpu_init();
}
void fpu_finit(struct fpu *fpu)
void fpstate_init(struct fpu *fpu)
{
if (!cpu_has_fpu) {
finit_soft_fpu(&fpu->state->soft);
@ -244,7 +244,7 @@ void fpu_finit(struct fpu *fpu)
fp->fos = 0xffff0000u;
}
}
EXPORT_SYMBOL_GPL(fpu_finit);
EXPORT_SYMBOL_GPL(fpstate_init);
int fpstate_alloc(struct fpu *fpu)
{
@ -284,7 +284,7 @@ int fpstate_alloc_init(struct task_struct *curr)
if (ret)
return ret;
fpu_finit(&curr->thread.fpu);
fpstate_init(&curr->thread.fpu);
/* Safe to do for the current task: */
curr->flags |= PF_USED_MATH;
@ -318,7 +318,7 @@ static int fpu__unlazy_stopped(struct task_struct *child)
if (ret)
return ret;
fpu_finit(&child->thread.fpu);
fpstate_init(&child->thread.fpu);
/* Safe to do for stopped child tasks: */
child->flags |= PF_USED_MATH;

2
arch/x86/kernel/xsave.c
View File

@ -395,7 +395,7 @@ int __restore_xstate_sig(void __user *buf, void __user *buf_fx, int size)
if (__copy_from_user(&fpu->state->xsave, buf_fx, state_size) ||
__copy_from_user(&env, buf, sizeof(env))) {
fpu_finit(fpu);
fpstate_init(fpu);
err = -1;
} else {
sanitize_restored_xstate(tsk, &env, xstate_bv, fx_only);

2
arch/x86/kvm/x86.c
View File

@ -7011,7 +7011,7 @@ int fx_init(struct kvm_vcpu *vcpu)
if (err)
return err;
fpu_finit(&vcpu->arch.guest_fpu);
fpstate_init(&vcpu->arch.guest_fpu);
if (cpu_has_xsaves)
vcpu->arch.guest_fpu.state->xsave.xsave_hdr.xcomp_bv =
host_xcr0 | XSTATE_COMPACTION_ENABLED;