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x86/fpu: Rename all the fpregs, xregs, fxregs and fregs handling functions

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Standardize the naming of the various functions that copy register
content in specific FPU context formats:

  copy_fxregs_to_kernel()         # was: fpu_fxsave()
  copy_xregs_to_kernel()          # was: xsave_state()

  copy_kernel_to_fregs()          # was: frstor_checking()
  copy_kernel_to_fxregs()         # was: fxrstor_checking()
  copy_kernel_to_xregs()          # was: fpu_xrstor_checking()
  copy_kernel_to_xregs_booting()  # was: xrstor_state_booting()

  copy_fregs_to_user()            # was: fsave_user()
  copy_fxregs_to_user()           # was: fxsave_user()
  copy_xregs_to_user()            # was: xsave_user()

  copy_user_to_fregs()            # was: frstor_user()
  copy_user_to_fxregs()           # was: fxrstor_user()
  copy_user_to_xregs()            # was: xrestore_user()
  copy_user_to_fpregs_zeroing()   # was: restore_user_xstate()

Eliminate fpu_xrstor_checking(), because it was just a wrapper.

No change in functionality.

Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
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
2015-04-30 11:34:09 +02:00
parent 815418890e
commit c681314421
5 changed files with 38 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
arch/x86/include/asm/fpu/xstate.h
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@@ -58,7 +58,7 @@ extern void update_regset_xstate_info(unsigned int size, u64 xstate_mask);
* This function is called only during boot time when x86 caps are not set
* up and alternative can not be used yet.
*/
static inline int xsave_state_booting(struct xsave_struct *fx)
static inline int copy_xregs_to_kernel_booting(struct xsave_struct *fx)
{
u64 mask = -1;
u32 lmask = mask;
@@ -86,7 +86,7 @@ static inline int xsave_state_booting(struct xsave_struct *fx)
* This function is called only during boot time when x86 caps are not set
* up and alternative can not be used yet.
*/
static inline int xrstor_state_booting(struct xsave_struct *fx, u64 mask)
static inline int copy_kernel_to_xregs_booting(struct xsave_struct *fx, u64 mask)
{
u32 lmask = mask;
u32 hmask = mask >> 32;
@@ -112,7 +112,7 @@ static inline int xrstor_state_booting(struct xsave_struct *fx, u64 mask)
/*
* Save processor xstate to xsave area.
*/
static inline int xsave_state(struct xsave_struct *fx)
static inline int copy_xregs_to_kernel(struct xsave_struct *fx)
{
u64 mask = -1;
u32 lmask = mask;
@@ -151,7 +151,7 @@ static inline int xsave_state(struct xsave_struct *fx)
/*
* Restore processor xstate from xsave area.
*/
static inline int xrstor_state(struct xsave_struct *fx, u64 mask)
static inline int copy_kernel_to_xregs(struct xsave_struct *fx, u64 mask)
{
int err = 0;
u32 lmask = mask;
@@ -176,14 +176,6 @@ static inline int xrstor_state(struct xsave_struct *fx, u64 mask)
return err;
}
/*
* Restore xstate context for new process during context switch.
*/
static inline int fpu_xrstor_checking(struct xsave_struct *fx)
{
return xrstor_state(fx, -1);
}
/*
* Save xstate to user space xsave area.
*
@@ -194,7 +186,7 @@ static inline int fpu_xrstor_checking(struct xsave_struct *fx)
* backward compatibility for old applications which don't understand
* compacted format of xsave area.
*/
static inline int xsave_user(struct xsave_struct __user *buf)
static inline int copy_xregs_to_user(struct xsave_struct __user *buf)
{
int err;
@@ -218,7 +210,7 @@ static inline int xsave_user(struct xsave_struct __user *buf)
/*
* Restore xstate from user space xsave area.
*/
static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask)
static inline int copy_user_to_xregs(struct xsave_struct __user *buf, u64 mask)
{
int err = 0;
struct xsave_struct *xstate = ((__force struct xsave_struct *)buf);