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authorLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2012-11-06 11:57:43 +0000
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2012-11-19 14:51:11 +0000
commite8d432c9cf0a3d569b2d00877d12c9ffe9e55286 (patch)
treef85738a005ec0368adedfaf2600acd68ebf68c22 /arch/arm/include/asm
parent77b67063bb6bce6d475e910d3b886a606d0d91f7 (diff)
ARM: kernel: add MIDR to per-CPU information data
The advent of big.LITTLE ARM platforms requires the kernel to be able to identify the MIDRs of all online CPUs upon request. MIDRs are stashed at boot time so that kernel subsystems can detect the MIDR of online CPUs by simply retrieving per-CPU data updated by all booted CPUs. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org>
Diffstat (limited to 'arch/arm/include/asm')
-rw-r--r--arch/arm/include/asm/cpu.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/cpu.h b/arch/arm/include/asm/cpu.h
index d797223b39d5..2744f0602550 100644
--- a/arch/arm/include/asm/cpu.h
+++ b/arch/arm/include/asm/cpu.h
@@ -15,6 +15,7 @@
struct cpuinfo_arm {
struct cpu cpu;
+ u32 cpuid;
#ifdef CONFIG_SMP
unsigned int loops_per_jiffy;
#endif