path: root/arch/arm/include/asm
diff options
authorWill Deacon <will.deacon@arm.com>2012-04-23 15:38:28 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-04-23 15:44:41 +0100
commit2498814fcb3068f19b82b1519b4038721f61af43 (patch)
tree6a3483bab350438a768b56bb56611d609b2396b4 /arch/arm/include/asm
parentab4d536890853ab6675ede65db40e2c0980cb0ea (diff)
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/asm')
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 d4c24d412a8..0f04d84582e 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 *);