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authorDavid Brown <davidb@codeaurora.org>2011-03-16 22:13:16 -0700
committerDavid Brown <davidb@codeaurora.org>2011-03-16 22:13:16 -0700
commit92c260f755c42337c550d8ac1f8ccd1b32bffb20 (patch)
tree6d04fefc1adeecabfb2b00c201e0db78fa2b5529 /arch/s390/include/asm/atomic.h
parent8e76a80960bf06c245160a484d5a363ca6b520bb (diff)
parent05e34754518b6a90d5c392790c032575fab12d66 (diff)
Merge remote branch 'rmk/for-linus' into for-linus
* rmk/for-linus: (1557 commits) ARM: 6806/1: irq: introduce entry and exit functions for chained handlers ARM: 6781/1: Thumb-2: Work around buggy Thumb-2 short branch relocations in gas ARM: 6747/1: P2V: Thumb2 support ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump ARM: 6796/1: Footbridge: Fix I/O mappings for NOMMU mode ARM: 6784/1: errata: no automatic Store Buffer drain on Cortex-A9 ARM: 6772/1: errata: possible fault MMU translations following an ASID switch ARM: 6776/1: mach-ux500: activate fix for errata 753970 ARM: 6794/1: SPEAr: Append UL to device address macros. ARM: 6793/1: SPEAr: Remove unused *_SIZE macros from spear*.h files ARM: 6792/1: SPEAr: Replace SIZE macro's with SZ_4K macros ARM: 6791/1: SPEAr3xx: Declare device structures after shirq code ARM: 6790/1: SPEAr: Clock Framework: Rename usbd clock and align apb_clk entry ARM: 6789/1: SPEAr3xx: Rename sdio to sdhci ARM: 6788/1: SPEAr: Include mach/hardware.h instead of mach/spear.h ARM: 6787/1: SPEAr: Reorder #includes in .h & .c files. ARM: 6681/1: SPEAr: add debugfs support to clk API ARM: 6703/1: SPEAr: update clk API support ARM: 6679/1: SPEAr: make clk API functions more generic ARM: 6737/1: SPEAr: formalized timer support ... Conflicts: arch/arm/mach-msm/board-msm7x27.c arch/arm/mach-msm/board-msm7x30.c arch/arm/mach-msm/board-qsd8x50.c arch/arm/mach-msm/board-sapphire.c arch/arm/mach-msm/include/mach/memory.h
Diffstat (limited to 'arch/s390/include/asm/atomic.h')
-rw-r--r--arch/s390/include/asm/atomic.h26
1 files changed, 18 insertions, 8 deletions
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 76daea11718..5c5ba10384c 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -36,14 +36,19 @@
static inline int atomic_read(const atomic_t *v)
{
- barrier();
- return v->counter;
+ int c;
+
+ asm volatile(
+ " l %0,%1\n"
+ : "=d" (c) : "Q" (v->counter));
+ return c;
}
static inline void atomic_set(atomic_t *v, int i)
{
- v->counter = i;
- barrier();
+ asm volatile(
+ " st %1,%0\n"
+ : "=Q" (v->counter) : "d" (i));
}
static inline int atomic_add_return(int i, atomic_t *v)
@@ -128,14 +133,19 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
static inline long long atomic64_read(const atomic64_t *v)
{
- barrier();
- return v->counter;
+ long long c;
+
+ asm volatile(
+ " lg %0,%1\n"
+ : "=d" (c) : "Q" (v->counter));
+ return c;
}
static inline void atomic64_set(atomic64_t *v, long long i)
{
- v->counter = i;
- barrier();
+ asm volatile(
+ " stg %1,%0\n"
+ : "=Q" (v->counter) : "d" (i));
}
static inline long long atomic64_add_return(long long i, atomic64_t *v)