From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932201AbbKQSEv (ORCPT ); Tue, 17 Nov 2015 13:04:51 -0500 Received: from eu-smtp-delivery-143.mimecast.com ([146.101.78.143]:42150 "EHLO eu-smtp-delivery-143.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754052AbbKQSDq (ORCPT ); Tue, 17 Nov 2015 13:03:46 -0500 From: "Suzuki K. Poulose" To: linux-arm-kernel@lists.infradead.org Cc: mark.rutland@arm.com, punit.agrawal@arm.com, arm@kernel.org, linux-kernel@vger.kernel.org, "Suzuki K. Poulose" Subject: [PATCHv3 2/5] arm-cci: Get the status of a counter Date: Tue, 17 Nov 2015 18:03:24 +0000 Message-Id: <1447783407-18027-3-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1447783407-18027-1-git-send-email-suzuki.poulose@arm.com> References: <1447783407-18027-1-git-send-email-suzuki.poulose@arm.com> X-OriginalArrivalTime: 17 Nov 2015 18:03:42.0838 (UTC) FILETIME=[4B8B3160:01D12162] X-MC-Unique: dSTAhzieS8CthTfhwllP4w-5 Content-Type: text/plain; charset=WINDOWS-1252 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by mail.home.local id tAHI5DCi011622 Add helper routines to get the counter status and the event programmed on it. Cc: Punit Agrawal Cc: Mark Rutland Signed-off-by: Suzuki K. Poulose --- Changes since V2: - Rename pmu_counter_get_ctrl => pmu_counter_is_enabled() --- drivers/bus/arm-cci.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index f5793b9..48936c8 100644 --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -652,11 +652,23 @@ 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); } +static u32 __maybe_unused +pmu_get_event(struct cci_pmu *cci_pmu, int idx) +{ + return pmu_read_register(cci_pmu, idx, CCI_PMU_EVT_SEL); +} + /* * Returns the number of programmable counters actually implemented * by the cci -- 1.7.9.5