From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754687AbbLJPd0 (ORCPT ); Thu, 10 Dec 2015 10:33:26 -0500 Received: from foss.arm.com ([217.140.101.70]:55809 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750983AbbLJPdZ (ORCPT ); Thu, 10 Dec 2015 10:33:25 -0500 Date: Thu, 10 Dec 2015 15:33:13 +0000 From: Mark Rutland To: "Suzuki K. Poulose" Cc: linux-arm-kernel@lists.infradead.org, punit.agrawal@arm.com, arm@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCHv3 2/5] arm-cci: Get the status of a counter Message-ID: <20151210153312.GF495@leverpostej> References: <1447783407-18027-1-git-send-email-suzuki.poulose@arm.com> <1447783407-18027-3-git-send-email-suzuki.poulose@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447783407-18027-3-git-send-email-suzuki.poulose@arm.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 17, 2015 at 06:03:24PM +0000, Suzuki K. Poulose wrote: > 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() Acked-by: Mark Rutland Mark. > --- > 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 >