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a=rsa-sha256; c=relaxed/relaxed; d=syntacore.com; s=mta-04; t=1709053273; bh=mczoY9NKf5IBt5T4Xh9ynOn0nMrRnFZ+wXSkQuHkLYM=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=ss/rCZVIbpEiLw/81MIs41zgCIYwQ7eO1waUK8E2lC8XV1bPZ/ADFEl5i9RCdVgQn NVgXiB2dxEOFXWIKocoDXNdcQ+2ppyHptremx/GYff26TGVX6GRbvNeIWq329bsEcI XulHE91KC1Oj9t/Wb+cDtuvFR2oD13+CZd7wHbiH5dFfRx797j4UOCCsGy+p+yG4UH Sv7JIk/FNsJzUVcdNGIKyYsXSwav/yKU9qqMTUEyzTYlCrBl4aG6epatfU/yYXgdcx DTmEnXn7rAKjOaIxBvQxaYWh+AXP4XiOx3HHj6wqal3uhghxS37F+2xk4PNEbb+FC6 mFvMoAegilq5A== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=syntacore.com; s=mta-03; t=1709053273; bh=mczoY9NKf5IBt5T4Xh9ynOn0nMrRnFZ+wXSkQuHkLYM=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=Ac+HUnNYE6GR09eK4K4fDoSgzTYJDSzmjFTWbF4DHCLei8ZJ7/ZyhmedErh8tfw/i ouFn25bFeAJZgIzuSuoykv3pDYUCflzkbH6U8QlAqtW91cdxy81wrCSF9EiXM2TfeY C9o+l/5J39JIugvNl1fy+cxk7SYW88+zIyh7Wut7B+P4/c5hDjf4i++9/lRgLOIlES /DEqtjTlehyFThpiclkVrSV4eKqotjf2z0f/8pwTDZ1H5z6ktgfNd0CKiUB3Nlt5PS EG22pwa7H5Ytcv4YEx+XLMI0F6XLVE/XPzEiu+fI8+C8duGJUJ5V1PkM22tR1q1E7F UqQTU2G4Q4SXQ== From: Vadim Shakirov To: CC: Vadim Shakirov , Atish Patra , Anup Patel , Will Deacon , Mark Rutland , Paul Walmsley , Palmer Dabbelt , Albert Ou , , , Atish Patra Subject: [PATCH v2,RESEND 1/2] drivers: perf: added capabilities for legacy PMU Date: Tue, 27 Feb 2024 20:00:01 +0300 Message-ID: <20240227170002.188671-2-vadim.shakirov@syntacore.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240227170002.188671-1-vadim.shakirov@syntacore.com> References: <20240227170002.188671-1-vadim.shakirov@syntacore.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: T-Exch-05.corp.yadro.com (172.17.10.109) To S-Exch-01.corp.yadro.com (10.78.5.241) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792082172599716141 X-GMAIL-MSGID: 1792082265415259098 Added the PERF_PMU_CAP_NO_INTERRUPT flag because the legacy pmu driver does not provide sampling capabilities Added the PERF_PMU_CAP_NO_EXCLUDE flag because the legacy pmu driver does not provide the ability to disable counter incrementation in different privilege modes Suggested-by: Atish Patra Signed-off-by: Vadim Shakirov Reviewed-by: Atish Patra --- drivers/perf/riscv_pmu_legacy.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/perf/riscv_pmu_legacy.c b/drivers/perf/riscv_pmu_legacy.c index 79fdd667922e..a85fc9a15f03 100644 --- a/drivers/perf/riscv_pmu_legacy.c +++ b/drivers/perf/riscv_pmu_legacy.c @@ -117,6 +117,8 @@ static void pmu_legacy_init(struct riscv_pmu *pmu) pmu->event_mapped = pmu_legacy_event_mapped; pmu->event_unmapped = pmu_legacy_event_unmapped; pmu->csr_index = pmu_legacy_csr_index; + pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT; + pmu->pmu.capabilities |= PERF_PMU_CAP_NO_EXCLUDE; perf_pmu_register(&pmu->pmu, "cpu", PERF_TYPE_RAW); }