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authorWill Deacon <will.deacon@arm.com>2012-01-20 12:01:12 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-01-23 10:20:05 +0000
commiteb50439b92b6298bf209a982f295ba9c0f7cb30b (patch)
tree8678f4221e4a40907d9781753a8b95c96bbfded6 /arch/arm/include/asm/smp.h
parenta092f2b15399bb4d1aa4e83cffe775f0c946f323 (diff)
ARM: 7293/1: logical_cpu_map: decouple CPU mapping from SMP
It turns out that the logical CPU mapping is useful even when !CONFIG_SMP for manipulation of devices like interrupt and power controllers when running a UP kernel on a CPU other than 0. This can happen when kexecing a UP image from an SMP kernel. In the future, multi-cluster systems running AMP configurations will require something similar for mapping cluster IDs, so it makes sense to decouple this logic in preparation for this support. Acked-by: Yang Bai <hamo.by@gmail.com> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Reported-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include/asm/smp.h')
-rw-r--r--arch/arm/include/asm/smp.h6
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index 1e5717afc4a..ae29293270a 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -71,12 +71,6 @@ extern void platform_secondary_init(unsigned int cpu);
extern void platform_smp_prepare_cpus(unsigned int);
/*
- * Logical CPU mapping.
- */
-extern int __cpu_logical_map[NR_CPUS];
-#define cpu_logical_map(cpu) __cpu_logical_map[cpu]
-
-/*
* Initial data for bringing up a secondary CPU.
*/
struct secondary_data {