diff options
author | Paul Mundt <lethal@linux-sh.org> | 2007-11-19 05:13:38 -0500 |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-27 23:18:48 -0500 |
commit | 600ee240d15e535d51e6c2b2f8475f0aa42885ea (patch) | |
tree | 95ca3ee293c43c104172debd3951c8693c27334d /arch | |
parent | 061854fd155116ab1f40c39a75e2c641827fd246 (diff) |
sh: Move over and enable FPU support for SH-5.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/sh/Kconfig.sh64 | 1 | ||||
-rw-r--r-- | arch/sh/kernel/cpu/sh5/Makefile | 1 | ||||
-rw-r--r-- | arch/sh/kernel/cpu/sh5/fpu.c (renamed from arch/sh64/kernel/fpu.c) | 4 | ||||
-rw-r--r-- | arch/sh/kernel/process_64.c | 8 | ||||
-rw-r--r-- | arch/sh/kernel/signal_64.c | 4 |
5 files changed, 10 insertions, 8 deletions
diff --git a/arch/sh/Kconfig.sh64 b/arch/sh/Kconfig.sh64 index 10f5d30d3184..e37cd8c51e34 100644 --- a/arch/sh/Kconfig.sh64 +++ b/arch/sh/Kconfig.sh64 | |||
@@ -83,6 +83,7 @@ choice | |||
83 | 83 | ||
84 | config CPU_SH5 | 84 | config CPU_SH5 |
85 | bool "SH-5" | 85 | bool "SH-5" |
86 | select CPU_HAS_FPU | ||
86 | 87 | ||
87 | endchoice | 88 | endchoice |
88 | 89 | ||
diff --git a/arch/sh/kernel/cpu/sh5/Makefile b/arch/sh/kernel/cpu/sh5/Makefile index 7ea10732b5cc..6d388e8d8991 100644 --- a/arch/sh/kernel/cpu/sh5/Makefile +++ b/arch/sh/kernel/cpu/sh5/Makefile | |||
@@ -1,3 +1,4 @@ | |||
1 | obj-y := entry.o switchto.o | 1 | obj-y := entry.o switchto.o |
2 | 2 | ||
3 | obj-$(CONFIG_KALLSYMS) += unwind.o | 3 | obj-$(CONFIG_KALLSYMS) += unwind.o |
4 | obj-$(CONFIG_SH_FPU) += fpu.o | ||
diff --git a/arch/sh64/kernel/fpu.c b/arch/sh/kernel/cpu/sh5/fpu.c index 8ad4ed6a6c9b..d3f5e7468dfe 100644 --- a/arch/sh64/kernel/fpu.c +++ b/arch/sh/kernel/cpu/sh5/fpu.c | |||
@@ -152,7 +152,7 @@ do_fpu_state_restore(unsigned long ex, struct pt_regs *regs) | |||
152 | if (last_task_used_math == current) | 152 | if (last_task_used_math == current) |
153 | return; | 153 | return; |
154 | 154 | ||
155 | grab_fpu(); | 155 | enable_fpu(); |
156 | if (last_task_used_math != NULL) { | 156 | if (last_task_used_math != NULL) { |
157 | /* Other processes fpu state, save away */ | 157 | /* Other processes fpu state, save away */ |
158 | fpsave(&last_task_used_math->thread.fpu.hard); | 158 | fpsave(&last_task_used_math->thread.fpu.hard); |
@@ -165,6 +165,6 @@ do_fpu_state_restore(unsigned long ex, struct pt_regs *regs) | |||
165 | fpload(&init_fpuregs.hard); | 165 | fpload(&init_fpuregs.hard); |
166 | set_used_math(); | 166 | set_used_math(); |
167 | } | 167 | } |
168 | release_fpu(); | 168 | disable_fpu(); |
169 | } | 169 | } |
170 | 170 | ||
diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c index 0761af4d2a42..0c2bc61b66b3 100644 --- a/arch/sh/kernel/process_64.c +++ b/arch/sh/kernel/process_64.c | |||
@@ -469,9 +469,9 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) | |||
469 | fpvalid = !!tsk_used_math(tsk); | 469 | fpvalid = !!tsk_used_math(tsk); |
470 | if (fpvalid) { | 470 | if (fpvalid) { |
471 | if (current == last_task_used_math) { | 471 | if (current == last_task_used_math) { |
472 | grab_fpu(); | 472 | enable_fpu(); |
473 | fpsave(&tsk->thread.fpu.hard); | 473 | fpsave(&tsk->thread.fpu.hard); |
474 | release_fpu(); | 474 | disable_fpu(); |
475 | last_task_used_math = 0; | 475 | last_task_used_math = 0; |
476 | regs->sr |= SR_FD; | 476 | regs->sr |= SR_FD; |
477 | } | 477 | } |
@@ -496,9 +496,9 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp, | |||
496 | 496 | ||
497 | #ifdef CONFIG_SH_FPU | 497 | #ifdef CONFIG_SH_FPU |
498 | if(last_task_used_math == current) { | 498 | if(last_task_used_math == current) { |
499 | grab_fpu(); | 499 | enable_fpu(); |
500 | fpsave(¤t->thread.fpu.hard); | 500 | fpsave(¤t->thread.fpu.hard); |
501 | release_fpu(); | 501 | disable_fpu(); |
502 | last_task_used_math = NULL; | 502 | last_task_used_math = NULL; |
503 | regs->sr |= SR_FD; | 503 | regs->sr |= SR_FD; |
504 | } | 504 | } |
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c index 069fb6083646..08f403e23662 100644 --- a/arch/sh/kernel/signal_64.c +++ b/arch/sh/kernel/signal_64.c | |||
@@ -211,9 +211,9 @@ setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc) | |||
211 | return err; | 211 | return err; |
212 | 212 | ||
213 | if (current == last_task_used_math) { | 213 | if (current == last_task_used_math) { |
214 | grab_fpu(); | 214 | enable_fpu(); |
215 | fpsave(¤t->thread.fpu.hard); | 215 | fpsave(¤t->thread.fpu.hard); |
216 | release_fpu(); | 216 | disable_fpu(); |
217 | last_task_used_math = NULL; | 217 | last_task_used_math = NULL; |
218 | regs->sr |= SR_FD; | 218 | regs->sr |= SR_FD; |
219 | } | 219 | } |