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x86/fpu: Harmonize FPU register state types

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Use these consistent names:

    struct fregs_state           # was: i387_fsave_struct
    struct fxregs_state          # was: i387_fxsave_struct
    struct swregs_state          # was: i387_soft_struct
    struct xregs_state           # was: xsave_struct
    union  fpregs_state          # was: thread_xstate

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 17:15:32 +02:00
parent 0c306bcfba
commit c47ada305d
14 changed files with 82 additions and 82 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
arch/x86/kernel/fpu/signal.c
View File

@@ -17,11 +17,11 @@ static struct _fpx_sw_bytes fx_sw_reserved, fx_sw_reserved_ia32;
* Check for the presence of extended state information in the
* user fpstate pointer in the sigcontext.
*/
static inline int check_for_xstate(struct i387_fxsave_struct __user *buf,
static inline int check_for_xstate(struct fxregs_state __user *buf,
void __user *fpstate,
struct _fpx_sw_bytes *fx_sw)
{
int min_xstate_size = sizeof(struct i387_fxsave_struct) +
int min_xstate_size = sizeof(struct fxregs_state) +
sizeof(struct xstate_header);
unsigned int magic2;
@@ -54,7 +54,7 @@ static inline int check_for_xstate(struct i387_fxsave_struct __user *buf,
static inline int save_fsave_header(struct task_struct *tsk, void __user *buf)
{
if (use_fxsr()) {
struct xsave_struct *xsave = &tsk->thread.fpu.state.xsave;
struct xregs_state *xsave = &tsk->thread.fpu.state.xsave;
struct user_i387_ia32_struct env;
struct _fpstate_ia32 __user *fp = buf;
@@ -65,7 +65,7 @@ static inline int save_fsave_header(struct task_struct *tsk, void __user *buf)
__put_user(X86_FXSR_MAGIC, &fp->magic))
return -1;
} else {
struct i387_fsave_struct __user *fp = buf;
struct fregs_state __user *fp = buf;
u32 swd;
if (__get_user(swd, &fp->swd) || __put_user(swd, &fp->status))
return -1;
@@ -76,7 +76,7 @@ static inline int save_fsave_header(struct task_struct *tsk, void __user *buf)
static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
{
struct xsave_struct __user *x = buf;
struct xregs_state __user *x = buf;
struct _fpx_sw_bytes *sw_bytes;
u32 xfeatures;
int err;
@@ -114,16 +114,16 @@ static inline int save_xstate_epilog(void __user *buf, int ia32_frame)
return err;
}
static inline int copy_fpregs_to_sigframe(struct xsave_struct __user *buf)
static inline int copy_fpregs_to_sigframe(struct xregs_state __user *buf)
{
int err;
if (use_xsave())
err = copy_xregs_to_user(buf);
else if (use_fxsr())
err = copy_fxregs_to_user((struct i387_fxsave_struct __user *) buf);
err = copy_fxregs_to_user((struct fxregs_state __user *) buf);
else
err = copy_fregs_to_user((struct i387_fsave_struct __user *) buf);
err = copy_fregs_to_user((struct fregs_state __user *) buf);
if (unlikely(err) && __clear_user(buf, xstate_size))
err = -EFAULT;
@@ -152,7 +152,7 @@ static inline int copy_fpregs_to_sigframe(struct xsave_struct __user *buf)
*/
int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
{
struct xsave_struct *xsave = &current->thread.fpu.state.xsave;
struct xregs_state *xsave = &current->thread.fpu.state.xsave;
struct task_struct *tsk = current;
int ia32_fxstate = (buf != buf_fx);
@@ -195,7 +195,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
struct user_i387_ia32_struct *ia32_env,
u64 xfeatures, int fx_only)
{
struct xsave_struct *xsave = &tsk->thread.fpu.state.xsave;
struct xregs_state *xsave = &tsk->thread.fpu.state.xsave;
struct xstate_header *header = &xsave->header;
if (use_xsave()) {
@@ -280,7 +280,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
* memory layout. Restore just the FP/SSE and init all
* the other extended state.
*/
state_size = sizeof(struct i387_fxsave_struct);
state_size = sizeof(struct fxregs_state);
fx_only = 1;
} else {
state_size = fx_sw_user.xstate_size;
@@ -353,8 +353,8 @@ int fpu__restore_sig(void __user *buf, int ia32_frame)
int size = xstate_sigframe_size();
if (ia32_frame && use_fxsr()) {
buf_fx = buf + sizeof(struct i387_fsave_struct);
size += sizeof(struct i387_fsave_struct);
buf_fx = buf + sizeof(struct fregs_state);
size += sizeof(struct fregs_state);
}
return __fpu__restore_sig(buf, buf_fx, size);
@@ -368,8 +368,8 @@ fpu__alloc_mathframe(unsigned long sp, int ia32_frame,
*buf_fx = sp = round_down(sp - frame_size, 64);
if (ia32_frame && use_fxsr()) {
frame_size += sizeof(struct i387_fsave_struct);
sp -= sizeof(struct i387_fsave_struct);
frame_size += sizeof(struct fregs_state);
sp -= sizeof(struct fregs_state);
}
*size = frame_size;
@@ -385,7 +385,7 @@ fpu__alloc_mathframe(unsigned long sp, int ia32_frame,
*/
void fpu__init_prepare_fx_sw_frame(void)
{
int fsave_header_size = sizeof(struct i387_fsave_struct);
int fsave_header_size = sizeof(struct fregs_state);
int size = xstate_size + FP_XSTATE_MAGIC2_SIZE;
if (config_enabled(CONFIG_X86_32))