Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=56163fcf194fb688fcf3cefa9b90c5ad41f74059
Commit: 56163fcf194fb688fcf3cefa9b90c5ad41f74059
Parent: aaf83acba9fb1f93d2e656c7e4dda4e38c1cb490
Author: Catalin Marinas <[EMAIL PROTECTED]>
AuthorDate: Tue May 8 22:53:44 2007 +0100
Committer: Russell King <[EMAIL PROTECTED]>
CommitDate: Tue May 8 22:55:57 2007 +0100
[ARM] armv7: add dedicated ARMv7 barrier instructions
Starting with ARMv7, there are dedicated instruction for the ISB, DSB
and DMB barriers and there is no need to execute them as CP15
operations.
Signed-off-by: Catalin Marinas <[EMAIL PROTECTED]>
Signed-off-by: Russell King <[EMAIL PROTECTED]>
---
include/asm-arm/system.h | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h
index c57555c..41dd491 100644
--- a/include/asm-arm/system.h
+++ b/include/asm-arm/system.h
@@ -158,7 +158,11 @@ extern unsigned int user_debug;
#define vectors_high() (0)
#endif
-#if defined(CONFIG_CPU_XSC3) || __LINUX_ARM_ARCH__ >= 6
+#if __LINUX_ARM_ARCH__ >= 7
+#define isb() __asm__ __volatile__ ("isb" : : : "memory")
+#define dsb() __asm__ __volatile__ ("dsb" : : : "memory")
+#define dmb() __asm__ __volatile__ ("dmb" : : : "memory")
+#elif defined(CONFIG_CPU_XSC3) || __LINUX_ARM_ARCH__ == 6
#define isb() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c5, 4" \
: : "r" (0) : "memory")
#define dsb() __asm__ __volatile__ ("mcr p15, 0, %0, c7, c10, 4" \
-
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