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authorRich Felker <dalias@aerifal.cx>2012-08-11 19:51:21 -0400
committerRich Felker <dalias@aerifal.cx>2012-08-11 19:51:21 -0400
commit036eaa24cf573c69982ba18dd427de68f6eeba2a (patch)
tree1a54a554fae6457b29433d509416a922e3d48f46 /arch/mips/atomic.h
parentf997e224fc30361fe683c6b5d0ba39718043ca8d (diff)
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avoid need for -march=mips2 to compile mips atomic.h asm
linux guarantees ll/sc are always available. on mips1, they will be emulated by the kernel. thus they are part of the linux mips1 abi and safe to use.
Diffstat (limited to 'arch/mips/atomic.h')
-rw-r--r--arch/mips/atomic.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/mips/atomic.h b/arch/mips/atomic.h
index a09f98df..f3478ef2 100644
--- a/arch/mips/atomic.h
+++ b/arch/mips/atomic.h
@@ -27,6 +27,7 @@ static inline int a_cas(volatile int *p, int t, int s)
int dummy;
__asm__ __volatile__(
".set push\n"
+ ".set mips2\n"
".set noreorder\n"
"1: ll %0, 0(%2)\n"
" bne %0, %3, 1f\n"
@@ -56,6 +57,7 @@ static inline int a_swap(volatile int *x, int v)
int old, dummy;
__asm__ __volatile__(
".set push\n"
+ ".set mips2\n"
".set noreorder\n"
"1: ll %0, 0(%2)\n"
" addu %1, %3, $0\n"
@@ -73,6 +75,7 @@ static inline int a_fetch_add(volatile int *x, int v)
int old, dummy;
__asm__ __volatile__(
".set push\n"
+ ".set mips2\n"
".set noreorder\n"
"1: ll %0, 0(%2)\n"
" addu %1, %0, %3\n"
@@ -90,6 +93,7 @@ static inline void a_inc(volatile int *x)
int dummy;
__asm__ __volatile__(
".set push\n"
+ ".set mips2\n"
".set noreorder\n"
"1: ll %0, 0(%1)\n"
" addu %0, %0, 1\n"
@@ -106,6 +110,7 @@ static inline void a_dec(volatile int *x)
int dummy;
__asm__ __volatile__(
".set push\n"
+ ".set mips2\n"
".set noreorder\n"
"1: ll %0, 0(%1)\n"
" subu %0, %0, 1\n"
@@ -122,6 +127,7 @@ static inline void a_store(volatile int *p, int x)
int dummy;
__asm__ __volatile__(
".set push\n"
+ ".set mips2\n"
".set noreorder\n"
"1: ll %0, 0(%1)\n"
" addu %0, %2, $0\n"
@@ -147,6 +153,7 @@ static inline void a_and(volatile int *p, int v)
int dummy;
__asm__ __volatile__(
".set push\n"
+ ".set mips2\n"
".set noreorder\n"
"1: ll %0, 0(%1)\n"
" and %0, %0, %2\n"
@@ -163,6 +170,7 @@ static inline void a_or(volatile int *p, int v)
int dummy;
__asm__ __volatile__(
".set push\n"
+ ".set mips2\n"
".set noreorder\n"
"1: ll %0, 0(%1)\n"
" or %0, %0, %2\n"