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authorCatalin Marinas <catalin.marinas@arm.com>2009-07-24 12:32:57 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2009-07-24 12:32:57 +0100
commit8b592783a2e8b7721a99730bd549aab5208f36af (patch)
tree468636a17d31f6a29287240c63234e739eabf666 /arch/arm/lib/copy_to_user.S
parent347c8b70b1d5256e445e54e736f88d21877616cf (diff)
downloadlinux-linaro-stable-8b592783a2e8b7721a99730bd549aab5208f36af.tar.gz
Thumb-2: Implement the unified arch/arm/lib functions
This patch adds the ARM/Thumb-2 unified support for the arch/arm/lib/* files. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/lib/copy_to_user.S')
-rw-r--r--arch/arm/lib/copy_to_user.S19
1 files changed, 10 insertions, 9 deletions
diff --git a/arch/arm/lib/copy_to_user.S b/arch/arm/lib/copy_to_user.S
index 878820f0a320..1a71e1584442 100644
--- a/arch/arm/lib/copy_to_user.S
+++ b/arch/arm/lib/copy_to_user.S
@@ -33,8 +33,15 @@
* Number of bytes NOT copied.
*/
+#define LDR1W_SHIFT 0
+#ifndef CONFIG_THUMB2_KERNEL
+#define STR1W_SHIFT 0
+#else
+#define STR1W_SHIFT 1
+#endif
+
.macro ldr1w ptr reg abort
- ldr \reg, [\ptr], #4
+ W(ldr) \reg, [\ptr], #4
.endm
.macro ldr4w ptr reg1 reg2 reg3 reg4 abort
@@ -50,10 +57,7 @@
.endm
.macro str1w ptr reg abort
-100: strt \reg, [\ptr], #4
- .section __ex_table, "a"
- .long 100b, \abort
- .previous
+ strusr \reg, \ptr, 4, abort=\abort
.endm
.macro str8w ptr reg1 reg2 reg3 reg4 reg5 reg6 reg7 reg8 abort
@@ -68,10 +72,7 @@
.endm
.macro str1b ptr reg cond=al abort
-100: str\cond\()bt \reg, [\ptr], #1
- .section __ex_table, "a"
- .long 100b, \abort
- .previous
+ strusr \reg, \ptr, 1, \cond, abort=\abort
.endm
.macro enter reg1 reg2