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authorLinus Torvalds <torvalds@linux-foundation.org>2009-11-11 11:32:42 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-11-11 11:32:42 -0800
commit749f3cbe1acd60a7bf6ff0396a48a28705096305 (patch)
tree12ef5dafe8da5e0e2186643318cd494e0c5e238c /arch/arm/mm/proc-v7.S
parent6b46362c0ea472b174c336786fd406c504326ad4 (diff)
parent65f69e5c16f8eee17b7f71bfad9e8e58f44c7386 (diff)
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: Use a definition for the userspace cmpxchg emulation syscall [ARM] Fix test for unimplemented ARM syscalls ARM: 5784/1: fix early boot machine ID mismatch error display [ARM] orion5x: update defconfig [ARM] Kirkwood: update defconfig [ARM] Kirkwood: clarify PCIe MEM bus/physical address distinction [ARM] kirkwood: fix PCI I/O port assignment [ARM] kirkwood: fix section mismatch [ARM] OpenRD base: Initialize PCI express and i2c [ARM] properly report mv78100 stepping A1 ARM: 5780/1: KS8695: Fix macro definition bug in regs-switch.c ARM: 5779/1: ep93xx/micro9.c: fix implicit declaration of function __raw_readl and IOMEM RealView: Add sparsemem support for the RealView PBX platform RealView: Remove duplicated #define REALVIEW_SYS_FLAGS* statements RealView: Add default memory configuration Check whether the SCU was already initialised ARMv7: Check whether the SMP/nAMP mode was already enabled [ARM] pxa: fix resume failure by saving/restoring IPRx registers [ARM] pxa/palm: fix incorrect initialization of Palm Tungsten C keyboard [ARM] pxa/zaurus: fix NAND flash OOB layout for Borzoi
Diffstat (limited to 'arch/arm/mm/proc-v7.S')
-rw-r--r--arch/arm/mm/proc-v7.S7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index eeeed01ee44a..3a285218fd15 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -186,9 +186,10 @@ cpu_v7_name:
*/
__v7_setup:
#ifdef CONFIG_SMP
- mrc p15, 0, r0, c1, c0, 1 @ Enable SMP/nAMP mode and
- orr r0, r0, #(1 << 6) | (1 << 0) @ TLB ops broadcasting
- mcr p15, 0, r0, c1, c0, 1
+ mrc p15, 0, r0, c1, c0, 1
+ tst r0, #(1 << 6) @ SMP/nAMP mode enabled?
+ orreq r0, r0, #(1 << 6) | (1 << 0) @ Enable SMP/nAMP mode and
+ mcreq p15, 0, r0, c1, c0, 1 @ TLB ops broadcasting
#endif
adr r12, __v7_setup_stack @ the local stack
stmia r12, {r0-r5, r7, r9, r11, lr}