From: "Suzuki K. Poulose" <suzuki.poulose@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: punit.agrawal@arm.com, mark.rutland@arm.com, arm@kernel.org,
linux-kernel@vger.kernel.org,
"Suzuki K. Poulose" <suzuki.poulose@arm.com>
Subject: [PATCHv2 2/4] arm-cci: Get the status of a counter
Date: Tue, 20 Oct 2015 14:05:24 +0100 [thread overview]
Message-ID: <1445346326-30820-3-git-send-email-suzuki.poulose@arm.com> (raw)
In-Reply-To: <1445346326-30820-1-git-send-email-suzuki.poulose@arm.com>
Add helper routines to get the counter status and the event
programmed on it.
Cc: Punit Agrawal <punit.agrawal@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: arm@kernel.org
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
---
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
next prev parent reply other threads:[~2015-10-20 13:08 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-20 13:05 [PATCHv2 0/4] arm-cci500: Workaround pmu_event_set_period Suzuki K. Poulose
2015-10-20 13:05 ` [PATCHv2 1/4] arm-cci: Refactor CCI PMU code Suzuki K. Poulose
2015-11-04 18:01 ` Mark Rutland
2015-11-04 18:17 ` Suzuki K. Poulose
2015-10-20 13:05 ` Suzuki K. Poulose [this message]
2015-11-04 18:06 ` [PATCHv2 2/4] arm-cci: Get the status of a counter Mark Rutland
2015-11-04 18:20 ` Suzuki K. Poulose
2015-10-20 13:05 ` [PATCHv2 3/4] arm-cci: Add routines to enable/disable all counters Suzuki K. Poulose
2015-11-04 18:28 ` Mark Rutland
2015-11-05 10:14 ` Suzuki K. Poulose
2015-11-05 10:19 ` Suzuki K. Poulose
2015-11-05 17:27 ` Mark Rutland
2015-11-05 17:52 ` Suzuki K. Poulose
2015-10-20 13:05 ` [PATCHv2 4/4] arm-cci500: Work around PMU counter writes Suzuki K. Poulose
2015-10-22 17:00 ` [PATCHv2 0/4] arm-cci500: Workaround pmu_event_set_period Olof Johansson
2015-10-22 21:46 ` Suzuki K. Poulose
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