From mboxrd@z Thu Jan 1 00:00:00 1970 From: suzuki.poulose@arm.com (Suzuki K. Poulose) Date: Tue, 20 Oct 2015 14:05:24 +0100 Subject: [PATCHv2 2/4] arm-cci: Get the status of a counter In-Reply-To: <1445346326-30820-1-git-send-email-suzuki.poulose@arm.com> References: <1445346326-30820-1-git-send-email-suzuki.poulose@arm.com> Message-ID: <1445346326-30820-3-git-send-email-suzuki.poulose@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add helper routines to get the counter status and the event programmed on it. Cc: Punit Agrawal Cc: Mark Rutland Cc: arm at kernel.org Signed-off-by: Suzuki K. Poulose --- drivers/bus/arm-cci.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c index 5435d87..1a75010 100644 --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -647,11 +647,21 @@ static void pmu_enable_counter(struct cci_pmu *cci_pmu, int idx) pmu_write_register(cci_pmu, 1, idx, CCI_PMU_CNTR_CTRL); } +static u32 pmu_get_counter_ctrl(struct cci_pmu *cci_pmu, int idx) +{ + return pmu_read_register(cci_pmu, idx, CCI_PMU_CNTR_CTRL) & 0x1; +} + 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 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