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msm: scm: Mark inline asm as volatile

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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>
This commit is contained in:
Stephen Boyd 2011-02-24 10:44:42 -08:00 committed by David Brown
parent c7831df393
commit 7e1a68abae
1 changed files with 2 additions and 2 deletions
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4
arch/arm/mach-msm/scm.c
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@ -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")