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From: James Clark <james.clark@arm.com>
To: linux-arm-kernel@lists.infradead.org,
	linux-perf-users@vger.kernel.org, suzuki.poulose@arm.com,
	will@kernel.org, mark.rutland@arm.com, anshuman.khandual@arm.com
Cc: namhyung@gmail.com, James Clark <james.clark@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Jonathan Corbet <corbet@lwn.net>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
	Ian Rogers <irogers@google.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Russell King <linux@armlinux.org.uk>,
	Marc Zyngier <maz@kernel.org>,
	Oliver Upton <oliver.upton@linux.dev>,
	James Morse <james.morse@arm.com>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Shuah Khan <shuah@kernel.org>,
	Zaid Al-Bassam <zalbassam@google.com>,
	Raghavendra Rao Ananta <rananta@google.com>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvmarm@lists.linux.dev, kvm@vger.kernel.org,
	linux-kselftest@vger.kernel.org
Subject: [PATCH v7 08/11] KVM: selftests: aarch64: Update tools copy of arm_pmuv3.h
Date: Mon, 11 Dec 2023 16:13:20 +0000	[thread overview]
Message-ID: <20231211161331.1277825-9-james.clark@arm.com> (raw)
In-Reply-To: <20231211161331.1277825-1-james.clark@arm.com>

Now that ARMV8_PMU_PMCR_N is made with GENMASK, update usages to treat
it as a pre-shifted mask.

Signed-off-by: James Clark <james.clark@arm.com>
---
 tools/include/perf/arm_pmuv3.h                | 43 +++++++++++--------
 .../kvm/aarch64/vpmu_counter_access.c         |  5 +--
 2 files changed, 28 insertions(+), 20 deletions(-)

diff --git a/tools/include/perf/arm_pmuv3.h b/tools/include/perf/arm_pmuv3.h
index e822d49fb5b8..1e397d55384e 100644
--- a/tools/include/perf/arm_pmuv3.h
+++ b/tools/include/perf/arm_pmuv3.h
@@ -218,45 +218,54 @@
 #define ARMV8_PMU_PMCR_DP	(1 << 5) /* Disable CCNT if non-invasive debug*/
 #define ARMV8_PMU_PMCR_LC	(1 << 6) /* Overflow on 64 bit cycle counter */
 #define ARMV8_PMU_PMCR_LP	(1 << 7) /* Long event counter enable */
-#define ARMV8_PMU_PMCR_N_SHIFT	11  /* Number of counters supported */
-#define ARMV8_PMU_PMCR_N_MASK	0x1f
-#define ARMV8_PMU_PMCR_MASK	0xff    /* Mask for writable bits */
+#define ARMV8_PMU_PMCR_N	GENMASK(15, 11) /* Number of counters supported */
+/* Mask for writable bits */
+#define ARMV8_PMU_PMCR_MASK	(ARMV8_PMU_PMCR_E | ARMV8_PMU_PMCR_P | \
+				 ARMV8_PMU_PMCR_C | ARMV8_PMU_PMCR_D | \
+				 ARMV8_PMU_PMCR_X | ARMV8_PMU_PMCR_DP | \
+				 ARMV8_PMU_PMCR_LC | ARMV8_PMU_PMCR_LP)
 
 /*
  * PMOVSR: counters overflow flag status reg
  */
-#define ARMV8_PMU_OVSR_MASK		0xffffffff	/* Mask for writable bits */
-#define ARMV8_PMU_OVERFLOWED_MASK	ARMV8_PMU_OVSR_MASK
+#define ARMV8_PMU_OVSR_P		GENMASK(30, 0)
+#define ARMV8_PMU_OVSR_C		BIT(31)
+/* Mask for writable bits is both P and C fields */
+#define ARMV8_PMU_OVERFLOWED_MASK	(ARMV8_PMU_OVSR_P | ARMV8_PMU_OVSR_C)
 
 /*
  * PMXEVTYPER: Event selection reg
  */
-#define ARMV8_PMU_EVTYPE_MASK	0xc800ffff	/* Mask for writable bits */
-#define ARMV8_PMU_EVTYPE_EVENT	0xffff		/* Mask for EVENT bits */
+#define ARMV8_PMU_EVTYPE_EVENT	GENMASK(15, 0)	/* Mask for EVENT bits */
+#define ARMV8_PMU_EVTYPE_TH	GENMASK(43, 32)
+#define ARMV8_PMU_EVTYPE_TC	GENMASK(63, 61)
 
 /*
  * Event filters for PMUv3
  */
-#define ARMV8_PMU_EXCLUDE_EL1	(1U << 31)
-#define ARMV8_PMU_EXCLUDE_EL0	(1U << 30)
-#define ARMV8_PMU_INCLUDE_EL2	(1U << 27)
+#define ARMV8_PMU_EXCLUDE_EL1		(1U << 31)
+#define ARMV8_PMU_EXCLUDE_EL0		(1U << 30)
+#define ARMV8_PMU_EXCLUDE_NS_EL1	(1U << 29)
+#define ARMV8_PMU_EXCLUDE_NS_EL0	(1U << 28)
+#define ARMV8_PMU_INCLUDE_EL2		(1U << 27)
+#define ARMV8_PMU_EXCLUDE_EL3		(1U << 26)
 
 /*
  * PMUSERENR: user enable reg
  */
-#define ARMV8_PMU_USERENR_MASK	0xf		/* Mask for writable bits */
 #define ARMV8_PMU_USERENR_EN	(1 << 0) /* PMU regs can be accessed at EL0 */
 #define ARMV8_PMU_USERENR_SW	(1 << 1) /* PMSWINC can be written at EL0 */
 #define ARMV8_PMU_USERENR_CR	(1 << 2) /* Cycle counter can be read at EL0 */
 #define ARMV8_PMU_USERENR_ER	(1 << 3) /* Event counter can be read at EL0 */
+/* Mask for writable bits */
+#define ARMV8_PMU_USERENR_MASK	(ARMV8_PMU_USERENR_EN | ARMV8_PMU_USERENR_SW | \
+				 ARMV8_PMU_USERENR_CR | ARMV8_PMU_USERENR_ER)
 
 /* PMMIR_EL1.SLOTS mask */
-#define ARMV8_PMU_SLOTS_MASK	0xff
-
-#define ARMV8_PMU_BUS_SLOTS_SHIFT 8
-#define ARMV8_PMU_BUS_SLOTS_MASK 0xff
-#define ARMV8_PMU_BUS_WIDTH_SHIFT 16
-#define ARMV8_PMU_BUS_WIDTH_MASK 0xf
+#define ARMV8_PMU_SLOTS		GENMASK(7, 0)
+#define ARMV8_PMU_BUS_SLOTS	GENMASK(15, 8)
+#define ARMV8_PMU_BUS_WIDTH	GENMASK(19, 16)
+#define ARMV8_PMU_THWIDTH	GENMASK(23, 20)
 
 /*
  * This code is really good
diff --git a/tools/testing/selftests/kvm/aarch64/vpmu_counter_access.c b/tools/testing/selftests/kvm/aarch64/vpmu_counter_access.c
index 5ea78986e665..9d51b5691349 100644
--- a/tools/testing/selftests/kvm/aarch64/vpmu_counter_access.c
+++ b/tools/testing/selftests/kvm/aarch64/vpmu_counter_access.c
@@ -42,13 +42,12 @@ struct pmreg_sets {
 
 static uint64_t get_pmcr_n(uint64_t pmcr)
 {
-	return (pmcr >> ARMV8_PMU_PMCR_N_SHIFT) & ARMV8_PMU_PMCR_N_MASK;
+	return FIELD_GET(ARMV8_PMU_PMCR_N, pmcr);
 }
 
 static void set_pmcr_n(uint64_t *pmcr, uint64_t pmcr_n)
 {
-	*pmcr = *pmcr & ~(ARMV8_PMU_PMCR_N_MASK << ARMV8_PMU_PMCR_N_SHIFT);
-	*pmcr |= (pmcr_n << ARMV8_PMU_PMCR_N_SHIFT);
+	u64p_replace_bits((__u64 *) pmcr, pmcr_n, ARMV8_PMU_PMCR_N);
 }
 
 static uint64_t get_counters_mask(uint64_t n)
-- 
2.34.1


  parent reply	other threads:[~2023-12-11 16:16 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-11 16:13 [PATCH v7 00/11] arm64: perf: Add support for event counting threshold James Clark
2023-12-11 16:13 ` [PATCH v7 01/11] arm: perf: Remove inlines from arm_pmuv3.c James Clark
2023-12-11 16:13 ` [PATCH v7 02/11] arm: perf/kvm: Use GENMASK for ARMV8_PMU_PMCR_N James Clark
2023-12-11 16:13 ` [PATCH v7 03/11] arm: perf: Use GENMASK for PMMIR fields James Clark
2023-12-11 16:13 ` [PATCH v7 04/11] arm: perf: Convert remaining fields to use GENMASK James Clark
2023-12-11 16:13 ` [PATCH v7 05/11] arm64: perf: Include threshold control fields in PMEVTYPER mask James Clark
2023-12-15 12:08   ` Uwe Kleine-König
2023-12-15 12:43     ` James Clark
2023-12-11 16:13 ` [PATCH v7 06/11] arm: pmu: Share user ABI format mechanism with SPE James Clark
2023-12-11 16:13 ` [PATCH v7 07/11] perf/arm_dmc620: Remove duplicate format attribute #defines James Clark
2023-12-11 16:13 ` James Clark [this message]
2023-12-11 16:13 ` [PATCH v7 09/11] arm: pmu: Move error message and -EOPNOTSUPP to individual PMUs James Clark
2023-12-11 16:13 ` [PATCH v7 10/11] arm64: perf: Add support for event counting threshold James Clark
2023-12-11 16:13 ` [PATCH v7 11/11] Documentation: arm64: Document the PMU event counting threshold feature James Clark
2023-12-12 17:20 ` [PATCH v7 00/11] arm64: perf: Add support for event counting threshold Will Deacon

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