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authorRobin Getz <rgetz@blackfin.uclinux.org>2009-01-07 23:14:39 +0800
committerBryan Wu <cooloney@kernel.org>2009-01-07 23:14:39 +0800
commit26fe19f76027b05c39faa9b728912631e91ec182 (patch)
treeb66ea7b4f8d56dac40aa8af919d64f71c8c0a18c
parent2377feb4ce1cd42b7c1d266f466d69597d9dac7f (diff)
Blackfin arch: Update some inline assembly, tweak some register constraints
Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
-rw-r--r--arch/blackfin/include/asm/bfrom.h5
-rw-r--r--arch/blackfin/include/asm/system.h8
-rw-r--r--arch/blackfin/include/asm/thread_info.h2
3 files changed, 10 insertions, 5 deletions
diff --git a/arch/blackfin/include/asm/bfrom.h b/arch/blackfin/include/asm/bfrom.h
index cfe8024c3b2..9e4be5e5e76 100644
--- a/arch/blackfin/include/asm/bfrom.h
+++ b/arch/blackfin/include/asm/bfrom.h
@@ -43,6 +43,11 @@ __attribute__((__noreturn__))
static inline void bfrom_SoftReset(void *new_stack)
{
while (1)
+ /*
+ * We don't declare the SP as clobbered on purpose, since
+ * it confuses the heck out of the compiler, and this function
+ * never returns
+ */
__asm__ __volatile__(
"sp = %[stack];"
"jump (%[bfrom_syscontrol]);"
diff --git a/arch/blackfin/include/asm/system.h b/arch/blackfin/include/asm/system.h
index dea92037dff..aa7d87b62b2 100644
--- a/arch/blackfin/include/asm/system.h
+++ b/arch/blackfin/include/asm/system.h
@@ -44,10 +44,10 @@
/*
* Force strict CPU ordering.
*/
-#define nop() asm volatile ("nop;\n\t"::)
-#define mb() asm volatile ("" : : :"memory")
-#define rmb() asm volatile ("" : : :"memory")
-#define wmb() asm volatile ("" : : :"memory")
+#define nop() __asm__ __volatile__ ("nop;\n\t" : : )
+#define mb() __asm__ __volatile__ ("" : : : "memory")
+#define rmb() __asm__ __volatile__ ("" : : : "memory")
+#define wmb() __asm__ __volatile__ ("" : : : "memory")
#define set_mb(var, value) do { (void) xchg(&var, value); } while (0)
#define read_barrier_depends() do { } while(0)
diff --git a/arch/blackfin/include/asm/thread_info.h b/arch/blackfin/include/asm/thread_info.h
index 1d380def241..7eaf2e2606d 100644
--- a/arch/blackfin/include/asm/thread_info.h
+++ b/arch/blackfin/include/asm/thread_info.h
@@ -91,7 +91,7 @@ __attribute_const__
static inline struct thread_info *current_thread_info(void)
{
struct thread_info *ti;
- __asm__("%0 = sp;": "=&d"(ti):
+ __asm__("%0 = sp;" : "=da"(ti) :
);
return (struct thread_info *)((long)ti & ~((long)THREAD_SIZE-1));
}