From patchwork Mon Dec 11 16:13:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Clark X-Patchwork-Id: 752816 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 5A416115; Mon, 11 Dec 2023 08:15:32 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id AA2EF16F2; Mon, 11 Dec 2023 08:16:18 -0800 (PST) Received: from e127643.broadband (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 367113F738; Mon, 11 Dec 2023 08:15:28 -0800 (PST) From: James Clark 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 , Catalin Marinas , Jonathan Corbet , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Ian Rogers , Adrian Hunter , Russell King , Marc Zyngier , Oliver Upton , James Morse , Zenghui Yu , Paolo Bonzini , Shuah Khan , Zaid Al-Bassam , Raghavendra Rao Ananta , 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 Message-Id: <20231211161331.1277825-9-james.clark@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231211161331.1277825-1-james.clark@arm.com> References: <20231211161331.1277825-1-james.clark@arm.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 --- 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)