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authorHaren Myneni <haren@linux.vnet.ibm.com>2012-12-06 21:46:37 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-01-10 17:00:59 +1100
commit5d75b26443aff37a7bd356f9dbd6d6e11ec122aa (patch)
treeb3d38bd338c9baec4700c5a48c737157edfcb5f5 /arch/powerpc/include/asm/ppc_asm.h
parent15fab56ecae2cba7e9f6663979bb160c11a9c506 (diff)
downloadvexpress-lsk-5d75b26443aff37a7bd356f9dbd6d6e11ec122aa.tar.gz
powerpc: Move branch instruction from ACCOUNT_CPU_USER_ENTRY to caller
[PATCH 1/6] powerpc: Move branch instruction from ACCOUNT_CPU_USER_ENTRY to caller The first instruction in ACCOUNT_CPU_USER_ENTRY is 'beq' which checks for exceptions coming from kernel mode. PPR value will be saved immediately after ACCOUNT_CPU_USER_ENTRY and is also for user level exceptions. So moved this branch instruction in the caller code. Signed-off-by: Haren Myneni <haren@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/ppc_asm.h')
-rw-r--r--arch/powerpc/include/asm/ppc_asm.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index ea2a86e8ff9..376e36d707f 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -30,7 +30,6 @@
#define ACCOUNT_STOLEN_TIME
#else
#define ACCOUNT_CPU_USER_ENTRY(ra, rb) \
- beq 2f; /* if from kernel mode */ \
MFTB(ra); /* get timebase */ \
ld rb,PACA_STARTTIME_USER(r13); \
std ra,PACA_STARTTIME(r13); \
@@ -38,7 +37,6 @@
ld ra,PACA_USER_TIME(r13); \
add ra,ra,rb; /* add on to user time */ \
std ra,PACA_USER_TIME(r13); \
-2:
#define ACCOUNT_CPU_USER_EXIT(ra, rb) \
MFTB(ra); /* get timebase */ \