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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-05-13 13:32:54 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-05-13 13:32:54 +0100
commitdc2af52c0d6d00fd530e4a5e300834cdb1bb1c1c (patch)
tree4573b99fb11e5b93bd011045039b370ddafe45e6 /arch/arm/include
parentf1992dde7fef6713a469a5a142b86812b8a47f9e (diff)
parent36be50515fe2aef61533b516fa2576a2c7fe7664 (diff)
Merge tag 'v3.4-rc7' into for-3.5
Linux 3.4-rc7 Conflicts): drivers/base/regmap/regmap.c (overlap with bug fixes) sound/soc/blackfin/bf5xx-ssm2602.c (overlap with bug fixes)
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/thread_info.h7
-rw-r--r--arch/arm/include/asm/tls.h4
2 files changed, 11 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 *);
#endif
/*
diff --git a/arch/arm/include/asm/tls.h b/arch/arm/include/asm/tls.h
index 60843eb0f61..73409e6c025 100644
--- a/arch/arm/include/asm/tls.h
+++ b/arch/arm/include/asm/tls.h
@@ -7,6 +7,8 @@
.macro set_tls_v6k, tp, tmp1, tmp2
mcr p15, 0, \tp, c13, c0, 3 @ set TLS register
+ mov \tmp1, #0
+ mcr p15, 0, \tmp1, c13, c0, 2 @ clear user r/w TLS register
.endm
.macro set_tls_v6, tp, tmp1, tmp2
@@ -15,6 +17,8 @@
mov \tmp2, #0xffff0fff
tst \tmp1, #HWCAP_TLS @ hardware TLS available?
mcrne p15, 0, \tp, c13, c0, 3 @ yes, set TLS register
+ movne \tmp1, #0
+ mcrne p15, 0, \tmp1, c13, c0, 2 @ clear user r/w TLS register
streq \tp, [\tmp2, #-15] @ set TLS value at 0xffff0ff0
.endm