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| author | Paul Mundt <lethal@linux-sh.org> | 2007-11-10 20:27:03 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-28 13:18:44 +0900 |
| commit | 256b22ca66987c537064dc25b0b267966189b5ba (patch) | |
| tree | 482f095562a3e1614b67de5352f09d4feea673f1 /include/asm-sh/processor_64.h | |
| parent | 27a511c6f37c05c5cf8fae9fe513f60d87af9158 (diff) | |
| download | lwn-256b22ca66987c537064dc25b0b267966189b5ba.tar.gz lwn-256b22ca66987c537064dc25b0b267966189b5ba.zip | |
sh: Have SH-5 provide an {en,dis}able_fpu() impl.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/processor_64.h')
| -rw-r--r-- | include/asm-sh/processor_64.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/asm-sh/processor_64.h b/include/asm-sh/processor_64.h index ecd6b403f7db..312fd73fb87e 100644 --- a/include/asm-sh/processor_64.h +++ b/include/asm-sh/processor_64.h @@ -18,6 +18,7 @@ #include <asm/page.h> #include <asm/types.h> #include <asm/cache.h> +#include <asm/ptrace.h> #include <asm/cpu/registers.h> /* @@ -218,7 +219,7 @@ extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); * FPU lazy state save handling. */ -static inline void release_fpu(void) +static inline void disable_fpu(void) { unsigned long long __dummy; @@ -230,7 +231,7 @@ static inline void release_fpu(void) : "r" (SR_FD)); } -static inline void grab_fpu(void) +static inline void enable_fpu(void) { unsigned long long __dummy; @@ -242,6 +243,16 @@ static inline void grab_fpu(void) : "r" (~SR_FD)); } +static inline void release_fpu(struct pt_regs *regs) +{ + regs->sr |= SR_FD; +} + +static inline void grab_fpu(struct pt_regs *regs) +{ + regs->sr &= ~SR_FD; +} + /* Round to nearest, no exceptions on inexact, overflow, underflow, zero-divide, invalid. Configure option for whether to flush denorms to zero, or except if a denorm is encountered. */ |