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kernel
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linux
ARM: 7847/1: mcpm: Factor out logical-to-physical CPU translation
This patch factors the logical-to-physical CPU translation out of
mcpm_boot_secondary(), so that it can be reused elsewhere.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
authored by
Dave Martin
and committed by
Russell King
1e566099
49649cad
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-5
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arch/arm/common/mcpm_platsmp.c
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-5
arch/arm/common/mcpm_platsmp.c
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#include <asm/smp.h>
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#include <asm/smp_plat.h>
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static int mcpm_boot_secondary(unsigned int cpu, struct task_struct *idle)
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static void cpu_to_pcpu(unsigned int cpu,
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unsigned int *pcpu, unsigned int *pcluster)
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{
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unsigned int mpidr, pcpu, pcluster, ret;
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extern void secondary_startup(void);
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unsigned int mpidr;
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mpidr = cpu_logical_map(cpu);
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pcpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
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pcluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
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*pcpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
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*pcluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
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}
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static int mcpm_boot_secondary(unsigned int cpu, struct task_struct *idle)
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{
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unsigned int pcpu, pcluster, ret;
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extern void secondary_startup(void);
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cpu_to_pcpu(cpu, &pcpu, &pcluster);
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pr_debug("%s: logical CPU %d is physical CPU %d cluster %d\n",
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__func__, cpu, pcpu, pcluster);
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