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authorStephen Boyd <sboyd@codeaurora.org>2011-02-24 10:44:42 -0800
committerDavid Brown <davidb@codeaurora.org>2011-03-10 12:01:37 -0800
commit7e1a68abaef094d5927ffe76bce21d6d8aa87bcb (patch)
tree0634cfbfad54311587d99e46ebec9b4533bf1793
parentc7831df3937f54bddc20128892a75373549516d0 (diff)
msm: scm: Mark inline asm as volatile
We don't want the compiler to remove these asm statements or reorder them in any way. Mark them as volatile to be sure. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: David Brown <davidb@codeaurora.org>
-rw-r--r--arch/arm/mach-msm/scm.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-msm/scm.c b/arch/arm/mach-msm/scm.c
index f4b9bc90d6a..ba57b5adf87 100644
--- a/arch/arm/mach-msm/scm.c
+++ b/arch/arm/mach-msm/scm.c
@@ -174,7 +174,7 @@ static u32 smc(u32 cmd_addr)
register u32 r0 asm("r0") = 1;
register u32 r1 asm("r1") = (u32)&context_id;
register u32 r2 asm("r2") = cmd_addr;
- asm(
+ asm volatile(
__asmeq("%0", "r0")
__asmeq("%1", "r0")
__asmeq("%2", "r1")
@@ -271,7 +271,7 @@ u32 scm_get_version(void)
return version;
mutex_lock(&scm_lock);
- asm(
+ asm volatile(
__asmeq("%0", "r1")
__asmeq("%1", "r0")
__asmeq("%2", "r1")