From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f201.google.com (mail-il1-f201.google.com [209.85.166.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6124922839A for ; Mon, 2 Jun 2025 19:29:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748892543; cv=none; b=Cdn3Ymi6UohUoVstdWbcj9QsOz9ZVb/puiGMIk7jbGin+6jgubUKRmdqMrvsHLtHUgJNrVEp7y7D8aTgzqOQnUardvGI6LtcfgH/Vf6wHWptO8jmkE4aV6RSEEwF9Di1vasR+6XQDw6RmZxw9unov75xi5o/+E0VnxTksaDGOGw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748892543; c=relaxed/simple; bh=hTJhSiv8BCxLXoZ+NIawSUFDzfOoIJdaR2ZVHq+pdOY=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=kuZYTpZ1q6MvJJg3Tcd1AcsawGv4SE6gv8wMYvaqeT6gvTVyx7+GZPtX1d9qBEr9w/g5/WYOYzlZ2U4E2ax5s9uhYj1L2FlLEE3qyixcWsRPNe6VHpETlstcUJP4zD50VKQiVGl5syk+jIXyKoaeqPaU/rLy1NhG5lTqpWeIH/0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--coltonlewis.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=wqso+t7N; arc=none smtp.client-ip=209.85.166.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--coltonlewis.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="wqso+t7N" Received: by mail-il1-f201.google.com with SMTP id e9e14a558f8ab-3dc854af016so56035915ab.3 for ; Mon, 02 Jun 2025 12:29:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1748892540; x=1749497340; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=OVB/n3He0PUlo5Tdl7uIOjIZvaOC3NNae41+U8BzpWw=; b=wqso+t7NhJqrApZJzbtbNVoClSpEMoimaL4X+Pks3aonRPGdeKmZnXOqwF3e9LfYVR IEdjJrvjabWwK/is6CHvoYHs02GmXtwWW4xZ5/j0W+jNXbu83gdfHLamZ3FI/EPm/LDe igP+YO+MU9ZeBkTlOKBFiLlCBINcqv7GObafx1Z9QZW8hsoJ/ar8/p+Gm2MTxSM8gLpU jY8qOGqysDIje/pRy6fcg5YdLpbnzdfJY1FPkhRAXHXI5kQt805U/+kF7jdjOKS+hEkl pRls57M1p5I2ypjOx82J9kCn/XZ/V0zk2OOvOIcQLjy1RHSeYzNR+mW8YNYO2e7M75jA TvEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1748892540; x=1749497340; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=OVB/n3He0PUlo5Tdl7uIOjIZvaOC3NNae41+U8BzpWw=; b=bEnXmE6dYf8bZJMBPVJaJDUrF9RuQioMi9ajs5UU1y9WmjZXqFMnRUv1MvEfNX13s2 UnzVYZai/TPs7pi87BerovRVhCC0FBQQnMKSThmOrOUhqTsPwYlYzkuE/5p18CSiMjHD 0bSpKlPVAvQSL73Tn2ZXXgFDu1lILocki5q9WLwGd8vDEvoLRdl0OBi/nspXLI4UM5z+ Th5E97MkB/U9ZCpdCkhX8Hx3mnq14vOvfVdMZiovHQZEEL7OUWwa8ehE9gOPFHhFUYn9 l/SNuPd0hHzGGQ1blKZ2KYsca1IvV7uKlcqplA1pDXFReIGLaInuN3OZ0inkz6FQQ7cg x04w== X-Forwarded-Encrypted: i=1; AJvYcCU04hJM6YLX8XE3+p9nq+NzkczY8MRJhniBu+fUq24wc5zSFnuzvo62K5bT5tF1dXMQeWkQrpfHPNk=@vger.kernel.org X-Gm-Message-State: AOJu0Yw9/OYO17/85jIha32n+Eu3XBSaKPhzVDP0MHd/Os9/QbbRS14T yy0J3eFHUWoz6VEIM5OZnQvf6fbIya9en9BTxDeLl/4eLwvAvKImyPCxnlaZbYyHvtSQMF9IKek qfM+nrqUy33giPsgWc2GjMUY4eA== X-Google-Smtp-Source: AGHT+IGP8Tr9H87Uubq0BhuyNeY27JD5iCuR6Hrz2NAJX2PVsu7lMWY1S1KfCHmBz3Zd2wWiWUQw5wTiYh98OuafJw== X-Received: from ilbby14.prod.google.com ([2002:a05:6e02:260e:b0:3dc:64a8:fc81]) (user=coltonlewis job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6e02:1a25:b0:3dc:8b57:b770 with SMTP id e9e14a558f8ab-3dda3370d7cmr84711015ab.11.1748892540564; Mon, 02 Jun 2025 12:29:00 -0700 (PDT) Date: Mon, 2 Jun 2025 19:26:48 +0000 In-Reply-To: <20250602192702.2125115-1-coltonlewis@google.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250602192702.2125115-1-coltonlewis@google.com> X-Mailer: git-send-email 2.49.0.1204.g71687c7c1d-goog Message-ID: <20250602192702.2125115-4-coltonlewis@google.com> Subject: [PATCH 03/17] arm64: cpufeature: Add cpucap for PMICNTR From: Colton Lewis To: kvm@vger.kernel.org Cc: Paolo Bonzini , Jonathan Corbet , Russell King , Catalin Marinas , Will Deacon , Marc Zyngier , Oliver Upton , Joey Gouly , Suzuki K Poulose , Zenghui Yu , Mark Rutland , Shuah Khan , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-perf-users@vger.kernel.org, linux-kselftest@vger.kernel.org, Colton Lewis Content-Type: text/plain; charset="UTF-8" Add a cpucap for FEAT_PMUv3_PMICNTR, meaning there is a dedicated instruction counter as well as the cycle counter. Signed-off-by: Colton Lewis --- arch/arm64/kernel/cpufeature.c | 7 +++++++ arch/arm64/tools/cpucaps | 1 + 2 files changed, 8 insertions(+) diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 578eea321a60..e798a706d8fb 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -2892,6 +2892,13 @@ static const struct arm64_cpu_capabilities arm64_features[] = { .matches = has_cpuid_feature, ARM64_CPUID_FIELDS(ID_AA64DFR0_EL1, HPMN0, IMP) }, + { + .desc = "PMU Dedicated Instruction Counter", + .type = ARM64_CPUCAP_SYSTEM_FEATURE, + .capability = ARM64_HAS_PMICNTR, + .matches = has_cpuid_feature, + ARM64_CPUID_FIELDS(ID_AA64DFR1_EL1, PMICNTR, IMP) + }, #ifdef CONFIG_ARM64_SME { .desc = "Scalable Matrix Extension", diff --git a/arch/arm64/tools/cpucaps b/arch/arm64/tools/cpucaps index 5b196ba21629..6dd72fcdd612 100644 --- a/arch/arm64/tools/cpucaps +++ b/arch/arm64/tools/cpucaps @@ -47,6 +47,7 @@ HAS_LSE_ATOMICS HAS_MOPS HAS_NESTED_VIRT HAS_PAN +HAS_PMICNTR HAS_PMUV3 HAS_S1PIE HAS_S1POE -- 2.49.0.1204.g71687c7c1d-goog