diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/sh/kernel/cpu/sh2a/fpu.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4/fpu.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh5/fpu.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/dump_task.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/process_32.c | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/signal_32.c | 1 | ||||
| -rw-r--r-- | include/asm-sh/fpu.h | 32 | ||||
| -rw-r--r-- | include/asm-sh/processor.h | 1 | ||||
| -rw-r--r-- | include/asm-sh/processor_32.h | 1 | ||||
| -rw-r--r-- | include/asm-sh/processor_64.h | 1 |
10 files changed, 26 insertions, 15 deletions
diff --git a/arch/sh/kernel/cpu/sh2a/fpu.c b/arch/sh/kernel/cpu/sh2a/fpu.c index ff99562456fb..5627c0b3ffa8 100644 --- a/arch/sh/kernel/cpu/sh2a/fpu.c +++ b/arch/sh/kernel/cpu/sh2a/fpu.c @@ -13,6 +13,7 @@ #include <linux/signal.h> #include <asm/processor.h> #include <asm/io.h> +#include <asm/fpu.h> /* The PR (precision) bit in the FP Status Register must be clear when * an frchg instruction is executed, otherwise the instruction is undefined. diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c index 817f9939cda6..8020796139f1 100644 --- a/arch/sh/kernel/cpu/sh4/fpu.c +++ b/arch/sh/kernel/cpu/sh4/fpu.c @@ -16,6 +16,7 @@ #include <asm/cpu/fpu.h> #include <asm/processor.h> #include <asm/system.h> +#include <asm/fpu.h> /* The PR (precision) bit in the FP Status Register must be clear when * an frchg instruction is executed, otherwise the instruction is undefined. diff --git a/arch/sh/kernel/cpu/sh5/fpu.c b/arch/sh/kernel/cpu/sh5/fpu.c index 30b76a94abf2..dd4f51ffb50e 100644 --- a/arch/sh/kernel/cpu/sh5/fpu.c +++ b/arch/sh/kernel/cpu/sh5/fpu.c @@ -17,6 +17,7 @@ #include <asm/processor.h> #include <asm/user.h> #include <asm/io.h> +#include <asm/fpu.h> /* * Initially load the FPU with signalling NANS. This bit pattern diff --git a/arch/sh/kernel/dump_task.c b/arch/sh/kernel/dump_task.c index 4a8a4083ff0b..1db7ce0f25d4 100644 --- a/arch/sh/kernel/dump_task.c +++ b/arch/sh/kernel/dump_task.c @@ -1,5 +1,6 @@ #include <linux/elfcore.h> #include <linux/sched.h> +#include <asm/fpu.h> /* * Capture the user space registers if the task is not running (in user space) diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index 9ab1926b9d10..b98e37a1f54c 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -25,6 +25,7 @@ #include <asm/pgalloc.h> #include <asm/system.h> #include <asm/ubc.h> +#include <asm/fpu.h> static int hlt_counter; int ubc_usercnt = 0; diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index f6b5fbfe75c4..f311551d9a05 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -29,6 +29,7 @@ #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/cacheflush.h> +#include <asm/fpu.h> #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) diff --git a/include/asm-sh/fpu.h b/include/asm-sh/fpu.h index f8429880a270..f89abf5920d8 100644 --- a/include/asm-sh/fpu.h +++ b/include/asm-sh/fpu.h @@ -1,9 +1,8 @@ #ifndef __ASM_SH_FPU_H #define __ASM_SH_FPU_H -#define SR_FD 0x00008000 - #ifndef __ASSEMBLY__ +#include <linux/preempt.h> #include <asm/ptrace.h> #ifdef CONFIG_SH_FPU @@ -28,18 +27,23 @@ extern void save_fpu(struct task_struct *__tsk, struct pt_regs *regs); extern int do_fpu_inst(unsigned short, struct pt_regs *); -#define unlazy_fpu(tsk, regs) do { \ - if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \ - save_fpu(tsk, regs); \ - } \ -} while (0) - -#define clear_fpu(tsk, regs) do { \ - if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { \ - clear_tsk_thread_flag(tsk, TIF_USEDFPU); \ - release_fpu(regs); \ - } \ -} while (0) +static inline void unlazy_fpu(struct task_struct *tsk, struct pt_regs *regs) +{ + preempt_disable(); + if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) + save_fpu(tsk, regs); + preempt_enable(); +} + +static inline void clear_fpu(struct task_struct *tsk, struct pt_regs *regs) +{ + preempt_disable(); + if (test_tsk_thread_flag(tsk, TIF_USEDFPU)) { + clear_tsk_thread_flag(tsk, TIF_USEDFPU); + release_fpu(regs); + } + preempt_enable(); +} #endif /* __ASSEMBLY__ */ diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index 19fe47c1ca17..ec707b98e5b9 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h @@ -2,7 +2,6 @@ #define __ASM_SH_PROCESSOR_H #include <asm/cpu-features.h> -#include <asm/fpu.h> #ifndef __ASSEMBLY__ /* diff --git a/include/asm-sh/processor_32.h b/include/asm-sh/processor_32.h index df2d5b039ef4..c09305d6a9d9 100644 --- a/include/asm-sh/processor_32.h +++ b/include/asm-sh/processor_32.h @@ -70,6 +70,7 @@ extern struct sh_cpuinfo cpu_data[]; */ #define SR_DSP 0x00001000 #define SR_IMASK 0x000000f0 +#define SR_FD 0x00008000 /* * FPU structure and data diff --git a/include/asm-sh/processor_64.h b/include/asm-sh/processor_64.h index eda4bef448e9..88a2edf8fa5d 100644 --- a/include/asm-sh/processor_64.h +++ b/include/asm-sh/processor_64.h @@ -112,6 +112,7 @@ extern struct sh_cpuinfo cpu_data[]; #endif #define SR_IMASK 0x000000f0 +#define SR_FD 0x00008000 #define SR_SSTEP 0x08000000 #ifndef __ASSEMBLY__ |