From mboxrd@z Thu Jan 1 00:00:00 1970 From: robherring2@gmail.com (Rob Herring) Date: Thu, 31 Jan 2013 14:01:13 -0600 Subject: [PATCH 2/3] ARM: scu: mask cluster id from cpu_logical_map In-Reply-To: <1359662474-1883-1-git-send-email-robherring2@gmail.com> References: <1359662474-1883-1-git-send-email-robherring2@gmail.com> Message-ID: <1359662474-1883-3-git-send-email-robherring2@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Rob Herring With commit a0ae0240 (ARM: kernel: add device tree init map function), the cpu id value may include the cluster id and is no longer 0-3, so we need to mask it in scu_power_mode to get the local cpu number. Since we are only dealing with the cpu we are running on, the cluster id should not ever be needed. Signed-off-by: Rob Herring --- arch/arm/kernel/smp_scu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/smp_scu.c b/arch/arm/kernel/smp_scu.c index b9f015e..45eac87 100644 --- a/arch/arm/kernel/smp_scu.c +++ b/arch/arm/kernel/smp_scu.c @@ -75,7 +75,7 @@ void scu_enable(void __iomem *scu_base) int scu_power_mode(void __iomem *scu_base, unsigned int mode) { unsigned int val; - int cpu = cpu_logical_map(smp_processor_id()); + int cpu = MPIDR_AFFINITY_LEVEL(cpu_logical_map(smp_processor_id()), 0); if (mode > 3 || mode == 1 || cpu > 3) return -EINVAL; -- 1.7.10.4