diff options
Diffstat (limited to 'include/asm-sh/fpu.h')
-rw-r--r-- | include/asm-sh/fpu.h | 39 |
1 files changed, 24 insertions, 15 deletions
diff --git a/include/asm-sh/fpu.h b/include/asm-sh/fpu.h index f8429880a270..91462fea1507 100644 --- a/include/asm-sh/fpu.h +++ b/include/asm-sh/fpu.h | |||
@@ -1,9 +1,8 @@ | |||
1 | #ifndef __ASM_SH_FPU_H | 1 | #ifndef __ASM_SH_FPU_H |
2 | #define __ASM_SH_FPU_H | 2 | #define __ASM_SH_FPU_H |
3 | 3 | ||
4 | #define SR_FD 0x00008000 | ||
5 | |||
6 | #ifndef __ASSEMBLY__ | 4 | #ifndef __ASSEMBLY__ |
5 | #include <linux/preempt.h> | ||
7 | #include <asm/ptrace.h> | 6 | #include <asm/ptrace.h> |
8 | 7 | ||
9 | #ifdef CONFIG_SH_FPU | 8 | #ifdef CONFIG_SH_FPU |
@@ -21,25 +20,35 @@ struct task_struct; | |||
21 | 20 | ||
22 | extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs); | 21 | extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs); |
23 | #else | 22 | #else |
23 | |||
24 | #define release_fpu(regs) do { } while (0) | 24 | #define release_fpu(regs) do { } while (0) |
25 | #define grab_fpu(regs) do { } while (0) | 25 | #define grab_fpu(regs) do { } while (0) |
26 | #define save_fpu(tsk, regs) do { } while (0) | 26 | |
27 | static inline void save_fpu(struct task_struct *tsk, struct pt_regs *regs) | ||
28 | { | ||
29 | clear_tsk_thread_flag(tsk, TIF_USEDFPU); | ||
30 | } | ||
27 | #endif | 31 | #endif |
28 | 32 | ||
29 | extern int do_fpu_inst(unsigned short, struct pt_regs *); | 33 | extern int do_fpu_inst(unsigned short, struct pt_regs *); |
30 | 34 | ||
31 | #define unlazy_fpu(tsk, regs) do { \ | 35 | static inline void unlazy_fpu(struct task_struct *tsk, struct pt_regs *regs) |
32 | if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \ | 36 | { |
33 | save_fpu(tsk, regs); \ | 37 | preempt_disable(); |
34 | } \ | 38 | if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) |
35 | } while (0) | 39 | save_fpu(tsk, regs); |
36 | 40 | preempt_enable(); | |
37 | #define clear_fpu(tsk, regs) do { \ | 41 | } |
38 | if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \ | 42 | |
39 | clear_tsk_thread_flag(tsk, TIF_USEDFPU); \ | 43 | static inline void clear_fpu(struct task_struct *tsk, struct pt_regs *regs) |
40 | release_fpu(regs); \ | 44 | { |
41 | } \ | 45 | preempt_disable(); |
42 | } while (0) | 46 | if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { |
47 | clear_tsk_thread_flag(tsk, TIF_USEDFPU); | ||
48 | release_fpu(regs); | ||
49 | } | ||
50 | preempt_enable(); | ||
51 | } | ||
43 | 52 | ||
44 | #endif /* __ASSEMBLY__ */ | 53 | #endif /* __ASSEMBLY__ */ |
45 | 54 | ||