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author | Paul Mundt <lethal@linux-sh.org> | 2007-11-22 17:30:50 +0900 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-28 13:18:55 +0900 |
commit | 332fd57b92d26e2ac6112340b98e92bb76117a41 (patch) | |
tree | fbbc00a900299ad91f46a74b8f2d42efaf4809af /arch/sh/kernel | |
parent | b6d7b666097e79a8908e3c43fd55fd291a95e133 (diff) | |
download | op-kernel-dev-332fd57b92d26e2ac6112340b98e92bb76117a41.zip op-kernel-dev-332fd57b92d26e2ac6112340b98e92bb76117a41.tar.gz |
sh: Bring the SH-5 FPU in line with the SH-4 FPU API.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r-- | arch/sh/kernel/cpu/sh5/fpu.c | 16 | ||||
-rw-r--r-- | arch/sh/kernel/process_64.c | 4 | ||||
-rw-r--r-- | arch/sh/kernel/ptrace_64.c | 4 | ||||
-rw-r--r-- | arch/sh/kernel/signal_64.c | 2 | ||||
-rw-r--r-- | arch/sh/kernel/traps_64.c | 4 |
5 files changed, 14 insertions, 16 deletions
diff --git a/arch/sh/kernel/cpu/sh5/fpu.c b/arch/sh/kernel/cpu/sh5/fpu.c index d3f5e74..5a391b1 100644 --- a/arch/sh/kernel/cpu/sh5/fpu.c +++ b/arch/sh/kernel/cpu/sh5/fpu.c @@ -30,12 +30,12 @@ static union sh_fpu_union init_fpuregs = { .hard = { - .fp_regs = { [0 ... 63] = sNAN32 }, - .fpscr = FPSCR_INIT + .fp_regs = { [0 ... 63] = sNAN32 }, + .fpscr = FPSCR_INIT } }; -inline void fpsave(struct sh_fpu_hard_struct *fpregs) +void save_fpu(struct task_struct *tsk, struct pt_regs *regs) { asm volatile("fst.p %0, (0*8), fp0\n\t" "fst.p %0, (1*8), fp2\n\t" @@ -73,11 +73,10 @@ inline void fpsave(struct sh_fpu_hard_struct *fpregs) "fgetscr fr63\n\t" "fst.s %0, (32*8), fr63\n\t" : /* no output */ - : "r" (fpregs) + : "r" (&tsk->thread.fpu.hard) : "memory"); } - static inline void fpload(struct sh_fpu_hard_struct *fpregs) { @@ -153,10 +152,10 @@ do_fpu_state_restore(unsigned long ex, struct pt_regs *regs) return; enable_fpu(); - if (last_task_used_math != NULL) { + if (last_task_used_math != NULL) /* Other processes fpu state, save away */ - fpsave(&last_task_used_math->thread.fpu.hard); - } + save_fpu(last_task_used_math, regs); + last_task_used_math = current; if (used_math()) { fpload(¤t->thread.fpu.hard); @@ -167,4 +166,3 @@ do_fpu_state_restore(unsigned long ex, struct pt_regs *regs) } disable_fpu(); } - diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c index 2dd97ee..973dd1a 100644 --- a/arch/sh/kernel/process_64.c +++ b/arch/sh/kernel/process_64.c @@ -480,7 +480,7 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) if (fpvalid) { if (current == last_task_used_math) { enable_fpu(); - fpsave(&tsk->thread.fpu.hard); + save_fpu(tsk, regs); disable_fpu(); last_task_used_math = 0; regs->sr |= SR_FD; @@ -507,7 +507,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp, #ifdef CONFIG_SH_FPU if(last_task_used_math == current) { enable_fpu(); - fpsave(¤t->thread.fpu.hard); + save_fpu(current, regs); disable_fpu(); last_task_used_math = NULL; regs->sr |= SR_FD; diff --git a/arch/sh/kernel/ptrace_64.c b/arch/sh/kernel/ptrace_64.c index 51bb546..e9cc6eb 100644 --- a/arch/sh/kernel/ptrace_64.c +++ b/arch/sh/kernel/ptrace_64.c @@ -75,7 +75,7 @@ get_fpu_long(struct task_struct *task, unsigned long addr) if (last_task_used_math == task) { enable_fpu(); - fpsave(&task->thread.fpu.hard); + save_fpu(task, regs); disable_fpu(); last_task_used_math = 0; regs->sr |= SR_FD; @@ -111,7 +111,7 @@ put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data) set_stopped_child_used_math(task); } else if (last_task_used_math == task) { enable_fpu(); - fpsave(&task->thread.fpu.hard); + save_fpu(task, regs); disable_fpu(); last_task_used_math = 0; regs->sr |= SR_FD; diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c index 08f403e..9228919 100644 --- a/arch/sh/kernel/signal_64.c +++ b/arch/sh/kernel/signal_64.c @@ -212,7 +212,7 @@ setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc) if (current == last_task_used_math) { enable_fpu(); - fpsave(¤t->thread.fpu.hard); + save_fpu(current, regs); disable_fpu(); last_task_used_math = NULL; regs->sr |= SR_FD; diff --git a/arch/sh/kernel/traps_64.c b/arch/sh/kernel/traps_64.c index 0f4ea3a..b8020f2 100644 --- a/arch/sh/kernel/traps_64.c +++ b/arch/sh/kernel/traps_64.c @@ -618,7 +618,7 @@ static int misaligned_fpu_load(struct pt_regs *regs, indexed by register number. */ if (last_task_used_math == current) { enable_fpu(); - fpsave(¤t->thread.fpu.hard); + save_fpu(current, regs); disable_fpu(); last_task_used_math = NULL; regs->sr |= SR_FD; @@ -691,7 +691,7 @@ static int misaligned_fpu_store(struct pt_regs *regs, indexed by register number. */ if (last_task_used_math == current) { enable_fpu(); - fpsave(¤t->thread.fpu.hard); + save_fpu(current, regs); disable_fpu(); last_task_used_math = NULL; regs->sr |= SR_FD; |