From: chander.kashyap@linaro.org (Chander Kashyap)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v6 2/6] arm: exynos: add generic function to calculate cpu number
Date: Fri, 16 May 2014 13:33:54 +0530 [thread overview]
Message-ID: <1400227438-27155-3-git-send-email-chander.kashyap@linaro.org> (raw)
In-Reply-To: <1400227438-27155-1-git-send-email-chander.kashyap@linaro.org>
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multi-cluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Chander Kashyap <k.chander@samsung.com>
---
arch/arm/mach-exynos/regs-pmu.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm/mach-exynos/regs-pmu.h b/arch/arm/mach-exynos/regs-pmu.h
index 4179f6a..485aefd 100644
--- a/arch/arm/mach-exynos/regs-pmu.h
+++ b/arch/arm/mach-exynos/regs-pmu.h
@@ -325,4 +325,13 @@
#define EXYNOS5420_SWRESET_KFC_SEL 0x3
+#include <asm/cputype.h>
+#define MAX_CPUS_IN_CLUSTER 4
+
+static inline unsigned int exynos_pmu_cpunr(unsigned int mpidr)
+{
+ return ((MPIDR_AFFINITY_LEVEL(mpidr, 1) * MAX_CPUS_IN_CLUSTER)
+ + MPIDR_AFFINITY_LEVEL(mpidr, 0));
+}
+
#endif /* __ASM_ARCH_REGS_PMU_H */
--
1.7.9.5
next prev parent reply other threads:[~2014-05-16 8:03 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <ANuQgHGSPJ45tbrVppAVpOqF0OfHacPWfX=S5mOVxTPr66f7vg@mail.gmail.com>
2014-05-14 8:03 ` [PATCH v5 0/6] add cpuidle support for Exynos5420 Chander Kashyap
2014-05-14 8:03 ` [PATCH v5 1/6] driver: cpuidle-big-little: add of_device_id structure Chander Kashyap
2014-05-14 8:03 ` [PATCH v5 2/6] arm: exynos: add generic function to calculate cpu number Chander Kashyap
2014-05-14 8:03 ` [PATCH v5 3/6] cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little driver Chander Kashyap
2014-05-14 8:03 ` [PATCH v5 4/6] driver: cpuidle: cpuidle-big-little: init driver for Exynos5420 Chander Kashyap
2014-05-14 13:04 ` Arnd Bergmann
2014-05-14 14:06 ` Lorenzo Pieralisi
2014-05-14 8:03 ` [PATCH v5 5/6] exynos: cpuidle: do not allow cpuidle registration " Chander Kashyap
2014-05-15 21:26 ` Tomasz Figa
2014-05-16 4:01 ` Chander Kashyap
2014-05-16 8:03 ` [PATCH v6 0/6] add cpuidle support " Chander Kashyap
2014-05-16 8:03 ` [PATCH v6 1/6] driver: cpuidle-big-little: add of_device_id structure Chander Kashyap
2014-05-28 8:58 ` Daniel Lezcano
2014-05-16 8:03 ` Chander Kashyap [this message]
2014-05-16 8:03 ` [PATCH v6 3/6] cpuidle: config: Add ARCH_EXYNOS entry to select cpuidle-big-little driver Chander Kashyap
2014-05-28 9:00 ` Daniel Lezcano
2014-05-16 8:03 ` [PATCH v6 4/6] driver: cpuidle: cpuidle-big-little: init driver for Exynos5420 Chander Kashyap
2014-05-16 8:03 ` [PATCH v6 5/6] exynos: cpuidle: do not allow cpuidle registration " Chander Kashyap
2014-05-16 8:03 ` [PATCH v6 6/6] mcpm: exynos: populate suspend and powered_up callbacks Chander Kashyap
2014-05-19 5:40 ` [PATCH v6 0/6] add cpuidle support for Exynos5420 Chander Kashyap
2014-05-26 4:40 ` Chander Kashyap
2014-05-26 10:29 ` Tomasz Figa
2014-05-28 4:28 ` Chander Kashyap
2014-05-28 4:35 ` Kukjin Kim
2014-05-28 9:02 ` Daniel Lezcano
2014-05-29 4:37 ` Chander Kashyap
2014-06-10 12:38 ` Chander M. Kashyap
2014-05-14 8:03 ` [PATCH v5 6/6] mcpm: exynos: populate suspend and powered_up callbacks Chander Kashyap
2014-05-14 9:56 ` [PATCH v5 0/6] add cpuidle support for Exynos5420 Daniel Lezcano
2014-05-14 10:43 ` Chander Kashyap
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