diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-09-04 11:14:20 -0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-10-04 15:20:45 -0400 |
| commit | 067173526c3bbc2eaeefcf6b7b2a9d998b9e8042 (patch) | |
| tree | 4da794388079afaf0f43a5aadb750e097846e538 /arch/arm/mach-realview | |
| parent | 971acb9b420ea1662dd3c48184c4315f87643be5 (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-realview')
| -rw-r--r-- | arch/arm/mach-realview/include/mach/smp.h | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/arch/arm/mach-realview/include/mach/smp.h b/arch/arm/mach-realview/include/mach/smp.h index dd53892d44a7..d3cd265cb058 100644 --- a/arch/arm/mach-realview/include/mach/smp.h +++ b/arch/arm/mach-realview/include/mach/smp.h | |||
| @@ -1,16 +1,8 @@ | |||
| 1 | #ifndef ASMARM_ARCH_SMP_H | 1 | #ifndef ASMARM_ARCH_SMP_H |
| 2 | #define ASMARM_ARCH_SMP_H | 2 | #define ASMARM_ARCH_SMP_H |
| 3 | 3 | ||
| 4 | |||
| 5 | #include <asm/hardware/gic.h> | 4 | #include <asm/hardware/gic.h> |
| 6 | 5 | #include <asm/smp_mpidr.h> | |
| 7 | #define hard_smp_processor_id() \ | ||
| 8 | ({ \ | ||
| 9 | unsigned int cpunum; \ | ||
| 10 | __asm__("mrc p15, 0, %0, c0, c0, 5" \ | ||
| 11 | : "=r" (cpunum)); \ | ||
| 12 | cpunum &= 0x0F; \ | ||
| 13 | }) | ||
| 14 | 6 | ||
| 15 | /* | 7 | /* |
| 16 | * We use IRQ1 as the IPI | 8 | * We use IRQ1 as the IPI |