From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752933AbcBWKuv (ORCPT ); Tue, 23 Feb 2016 05:50:51 -0500 Received: from foss.arm.com ([217.140.101.70]:36077 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752350AbcBWKup (ORCPT ); Tue, 23 Feb 2016 05:50:45 -0500 From: Suzuki K Poulose To: linux-arm-kernel@lists.infradead.org Cc: arm@kernel.org, arnd@arndb.de, olof@lixom.net, punit.agrawal@arm.com, mark.rutland@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, Suzuki K Poulose Subject: [PATCH 07/13] arm-cci: Get the status of a counter Date: Tue, 23 Feb 2016 10:49:49 +0000 Message-Id: <1456224595-3282-8-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1456224595-3282-1-git-send-email-suzuki.poulose@arm.com> References: <1456224595-3282-1-git-send-email-suzuki.poulose@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add helper routines to check if the counter is enabled or not. Cc: Punit Agrawal Acked-by: Mark Rutland Signed-off-by: Suzuki K Poulose --- drivers/bus/arm-cci.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index 420c30c..d289037 100644 --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -707,6 +707,12 @@ static void pmu_enable_counter(struct cci_pmu *cci_pmu, int idx) pmu_write_register(cci_pmu, 1, idx, CCI_PMU_CNTR_CTRL); } +static bool __maybe_unused +pmu_counter_is_enabled(struct cci_pmu *cci_pmu, int idx) +{ + return (pmu_read_register(cci_pmu, idx, CCI_PMU_CNTR_CTRL) & 0x1) != 0; +} + static void pmu_set_event(struct cci_pmu *cci_pmu, int idx, unsigned long event) { pmu_write_register(cci_pmu, event, idx, CCI_PMU_EVT_SEL); -- 1.7.9.5