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authorDmitry Shmidt <dimitrysh@google.com>2016-10-28 10:44:19 -0700
committerDmitry Shmidt <dimitrysh@google.com>2016-10-28 10:44:19 -0700
commitc302df26cb5bf9f60633785cf5b5ed162a138dfe (patch)
treed7e1f042a5a478a616010ff42e27fbf1547eca8e /arch/arm64/kernel
parenta979feb9e9f1827463f61ad241b198aa7dc27cd3 (diff)
parentc843445f19f4e6f05b32125d7556958f98033999 (diff)
Merge tag 'v4.4.28' into android-4.4.y
This is the 4.4.28 stable release
Diffstat (limited to 'arch/arm64/kernel')
-rw-r--r--arch/arm64/kernel/head.S3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 461d6cc258dd..99710399aa38 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -592,8 +592,9 @@ CPU_LE( movk x0, #0x30d0, lsl #16 ) // Clear EE and E0E on LE systems
b.lt 4f // Skip if no PMU present
mrs x0, pmcr_el0 // Disable debug access traps
ubfx x0, x0, #11, #5 // to EL2 and allow access to
- msr mdcr_el2, x0 // all PMU counters from EL1
4:
+ csel x0, xzr, x0, lt // all PMU counters from EL1
+ msr mdcr_el2, x0 // (if they exist)
/* Stage-2 translation */
msr vttbr_el2, xzr