diff options
| author | Roland McGrath <roland@redhat.com> | 2008-01-30 13:31:50 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:31:50 +0100 |
| commit | 4421011120b2304e5c248ae4165a2704588aedf1 (patch) | |
| tree | b715f9bd5fbe3493a2c6a14d0c30832c42832e62 /include/asm-x86/i387_64.h | |
| parent | b7b71725fb9584454bfe5f231223bd63421798fb (diff) | |
| download | talos-obmc-linux-4421011120b2304e5c248ae4165a2704588aedf1.tar.gz talos-obmc-linux-4421011120b2304e5c248ae4165a2704588aedf1.zip | |
x86: x86 i387 user_regset
This revamps the i387 code to be shared across 32-bit, 64-bit,
and 32-on-64. It does so by consolidating the code in one place
based on the user_regset accessor interfaces. This switches
32-bit to using the i387_64.h header and 64-bit to using the
i387.c that was previously i387_32.c, but that's what took the
least cleanup in each file. Here i387.h is stubbed to always
include i387_64.h rather than renaming the file, to keep this
diff smaller and easier to read.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/i387_64.h')
| -rw-r--r-- | include/asm-x86/i387_64.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/asm-x86/i387_64.h b/include/asm-x86/i387_64.h index 4cea7373ac78..de435b9114df 100644 --- a/include/asm-x86/i387_64.h +++ b/include/asm-x86/i387_64.h @@ -12,6 +12,7 @@ #include <linux/sched.h> #include <linux/kernel_stat.h> +#include <linux/regset.h> #include <asm/processor.h> #include <asm/sigcontext.h> #include <asm/user.h> @@ -23,6 +24,16 @@ extern void mxcsr_feature_mask_init(void); extern void init_fpu(struct task_struct *child); extern asmlinkage void math_state_restore(void); +extern user_regset_active_fn fpregs_active, xfpregs_active; +extern user_regset_get_fn fpregs_get, xfpregs_get, fpregs_soft_get; +extern user_regset_set_fn fpregs_set, xfpregs_set, fpregs_soft_set; + +#ifdef CONFIG_IA32_EMULATION +struct _fpstate_ia32; +extern int save_i387_ia32(struct _fpstate_ia32 __user *buf); +extern int restore_i387_ia32(struct _fpstate_ia32 __user *buf); +#endif + #ifdef CONFIG_X86_64 /* Ignore delayed exceptions from user space */ |
