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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-09-04 11:14:20 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-10-04 15:20:45 -0400
commit067173526c3bbc2eaeefcf6b7b2a9d998b9e8042 (patch)
tree4da794388079afaf0f43a5aadb750e097846e538 /arch/arm/mach-s5pv310/include/mach/smp.h
parent971acb9b420ea1662dd3c48184c4315f87643be5 (diff)
ARM: Provide common header for hard_smp_processor_id()
Provide a common header to read the SMP CPU number from the MPIDR. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-s5pv310/include/mach/smp.h')
-rw-r--r--arch/arm/mach-s5pv310/include/mach/smp.h9
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/arm/mach-s5pv310/include/mach/smp.h b/arch/arm/mach-s5pv310/include/mach/smp.h
index 990f3ba88a1f..b7ec252384f4 100644
--- a/arch/arm/mach-s5pv310/include/mach/smp.h
+++ b/arch/arm/mach-s5pv310/include/mach/smp.h
@@ -7,17 +7,10 @@
7#define ASM_ARCH_SMP_H __FILE__ 7#define ASM_ARCH_SMP_H __FILE__
8 8
9#include <asm/hardware/gic.h> 9#include <asm/hardware/gic.h>
10#include <asm/smp_mpidr.h>
10 11
11extern void __iomem *gic_cpu_base_addr; 12extern void __iomem *gic_cpu_base_addr;
12 13
13#define hard_smp_processor_id() \
14 ({ \
15 unsigned int cpunum; \
16 __asm__("mrc p15, 0, %0, c0, c0, 5" \
17 : "=r" (cpunum)); \
18 cpunum &= 0x03; \
19 })
20
21/* 14/*
22 * We use IRQ1 as the IPI 15 * We use IRQ1 as the IPI
23 */ 16 */