From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753579AbaENIGL (ORCPT ); Wed, 14 May 2014 04:06:11 -0400 Received: from mail-pa0-f47.google.com ([209.85.220.47]:51150 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752574AbaENIEY (ORCPT ); Wed, 14 May 2014 04:04:24 -0400 From: Chander Kashyap To: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: daniel.lezcano@linaro.org, lorenzo.pieralisi@arm.com, rjw@rjwysocki.net, kgene.kim@samsung.com, Chander Kashyap , Chander Kashyap Subject: [PATCH v5 2/6] arm: exynos: add generic function to calculate cpu number Date: Wed, 14 May 2014 13:33:53 +0530 Message-Id: <1400054637-21505-3-git-send-email-chander.kashyap@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1400054637-21505-1-git-send-email-chander.kashyap@linaro.org> References: <1400054637-21505-1-git-send-email-chander.kashyap@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.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 Signed-off-by: Chander Kashyap --- 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 +#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