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| author | Will Deacon <will.deacon@arm.com> | 2012-04-23 15:38:28 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-04-23 15:44:41 +0100 |
| commit | 2498814fcb3068f19b82b1519b4038721f61af43 (patch) | |
| tree | 6a3483bab350438a768b56bb56611d609b2396b4 /arch/arm/include | |
| parent | ab4d536890853ab6675ede65db40e2c0980cb0ea (diff) | |
| download | blackbird-op-linux-2498814fcb3068f19b82b1519b4038721f61af43.tar.gz blackbird-op-linux-2498814fcb3068f19b82b1519b4038721f61af43.zip | |
ARM: 7399/1: vfp: move user vfp state save/restore code out of signal.c
The user VFP state must be preserved (subject to ucontext modifications)
across invocation of a signal handler and this is currently handled by
vfp_{preserve,restore}_context in signal.c
Since this code requires intimate low-level knowledge of the VFP state,
this patch moves it into vfpmodule.c.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/thread_info.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index d4c24d412a8d..0f04d84582e1 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -118,6 +118,13 @@ extern void iwmmxt_task_switch(struct thread_info *); extern void vfp_sync_hwstate(struct thread_info *); extern void vfp_flush_hwstate(struct thread_info *); +struct user_vfp; +struct user_vfp_exc; + +extern int vfp_preserve_user_clear_hwstate(struct user_vfp __user *, + struct user_vfp_exc __user *); +extern int vfp_restore_user_hwstate(struct user_vfp __user *, + struct user_vfp_exc __user *); #endif /* |
