diff options
| author | Suresh Siddha <suresh.b.siddha@intel.com> | 2008-07-29 10:29:22 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-30 19:49:26 +0200 |
| commit | ab5137015fed9b948fe835a2d99a4cfbd50a0c40 (patch) | |
| tree | 229771c4f5606d56945941c8ada9ae6cf08d1c80 /include/asm-x86/i387.h | |
| parent | 3c1c7f101426cb2ecc79d817a8a65928965fc860 (diff) | |
| download | talos-op-linux-ab5137015fed9b948fe835a2d99a4cfbd50a0c40.tar.gz talos-op-linux-ab5137015fed9b948fe835a2d99a4cfbd50a0c40.zip | |
x86, xsave: reorganization of signal save/restore fpstate code layout
move 64bit routines that saves/restores fpstate in/from user stack from
signal_64.c to xsave.c
restore_i387_xstate() now handles the condition when user passes
NULL fpstate.
Other misc changes for prepartion of xsave/xrstor sigcontext support.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/i387.h')
| -rw-r--r-- | include/asm-x86/i387.h | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/include/asm-x86/i387.h b/include/asm-x86/i387.h index 36dca8db1660..dc3745e8040a 100644 --- a/include/asm-x86/i387.h +++ b/include/asm-x86/i387.h @@ -34,8 +34,9 @@ extern user_regset_set_fn fpregs_set, xfpregs_set, fpregs_soft_set; #ifdef CONFIG_IA32_EMULATION extern unsigned int sig_xstate_ia32_size; struct _fpstate_ia32; -extern int save_i387_ia32(struct _fpstate_ia32 __user *buf); -extern int restore_i387_ia32(struct _fpstate_ia32 __user *buf); +struct _xstate_ia32; +extern int save_i387_xstate_ia32(void __user *buf); +extern int restore_i387_xstate_ia32(void __user *buf); #endif #define X87_FSW_ES (1 << 7) /* Exception Summary */ @@ -249,13 +250,13 @@ end: task_thread_info(tsk)->status &= ~TS_USEDFPU; } +#endif /* CONFIG_X86_64 */ + /* * Signal frame handlers... */ -extern int save_i387(struct _fpstate __user *buf); -extern int restore_i387(struct _fpstate __user *buf); - -#endif /* CONFIG_X86_64 */ +extern int save_i387_xstate(void __user *buf); +extern int restore_i387_xstate(void __user *buf); static inline void __unlazy_fpu(struct task_struct *tsk) { |
