From patchwork Tue Jan 28 04:59:49 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Atish Kumar Patra X-Patchwork-Id: 13951998 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (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 2D5EC15B54A for ; Tue, 28 Jan 2025 05:00:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738040405; cv=none; b=KKHgvEGgkDR/0q3wjfedR5HeivOeuxTxoOKVgPQW2SN/aoIuDXr6d1pwRZW4/phsdJAB8RI/Ei6mhFZf67qOoL3MfrV055gGdJ7IVRyzMuvW/YV9wQPx+VXw9/6tZ1zEJs2k8kwsx7Yu0D9IUkNRPtKky+svbc+KfIDYyf2C+d4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738040405; c=relaxed/simple; bh=j6KZ4QS2aupIU/Q0ybhUflnKa/It+i/xJb5UAE1ecGY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=KLEtIgTVQr/Ui6tw9sda53azjv20hkz7aChvo/sJTDq8zmPu2IIY8BAlXqvi0mXoeVbeXYi1Q8SXztCpzVsiDAuHreLjQcnWLR6N1U+KBBU9elKq8E18KA+E5yIwJ6wPq9gJqIexX/6suiOiPQhbwBJoSKXe4BDWIJhLEC6ic1w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rivosinc.com; spf=pass smtp.mailfrom=rivosinc.com; dkim=pass (2048-bit key) header.d=rivosinc-com.20230601.gappssmtp.com header.i=@rivosinc-com.20230601.gappssmtp.com header.b=gQ/tU2RW; arc=none smtp.client-ip=209.85.216.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rivosinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rivosinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rivosinc-com.20230601.gappssmtp.com header.i=@rivosinc-com.20230601.gappssmtp.com header.b="gQ/tU2RW" Received: by mail-pj1-f48.google.com with SMTP id 98e67ed59e1d1-2ef6c56032eso6941822a91.2 for ; Mon, 27 Jan 2025 21:00:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20230601.gappssmtp.com; s=20230601; t=1738040402; x=1738645202; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=3ysqLj76yIXMmN0DuXp9ro2na+awhMKH5VmavOAjzvw=; b=gQ/tU2RWxSAoCOOua4wrmuWyEN8D5cIxZorgtVAv7XNomdaq+N+RtX0SQPKekNTlcf A+rRROa43P6G7i3I5BGKc/Dv6tfJGtU6smseApdTjIXzEiZsf0pftsxfOhjpai8iE0zC A+lzE6JskrYxqEAOKo3Bx6aPaA0dlbwkbLdb7zwrOD43MEq//hvLbEhwwhEdPYRX/Bcu MwYY2jWe53PKFvOd9RuGtiXj8ODXqj5a/E6795d6Jw7mgjniZY+msO1ma0th/+DvzswY 76re6bwnADW1koAqABhguEoR7kwcwR1/FFvwXZ4j9laUlzTbbKqQ4HdltDb30IJJ76S0 zdkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1738040402; x=1738645202; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=3ysqLj76yIXMmN0DuXp9ro2na+awhMKH5VmavOAjzvw=; b=sy1Z7zRaNBUnxkT+HecfQjerPGLonErqoTFZPnd+3YDFp+62Vm6XqOFMzLoW/8V34g L7y2VPLKysAInsxKER7jMWjiUS0vU12/2Bt/JLaWUUfP0cNe7M1Zki23YcWbFQkKLXcj VJ+/R7lFoR8UqPClRxiM5/IQ7mJNs9wUFedFM7X+FazV24eQZdaKh9GtBFlzAQayGc2h UP7FEyVBzBzVq2IyX1ob1Cwx9LQ3GBx3oe0dYroFJ/AFXU4mh6xCmz3FZVemIbgn/Qhv 0nJCs5v9zLRbmWt5Npn3RbkCoX14Nj8yDMBvU16NMbSwkjd7qUjkfVk4EAwGZ1CPoxCh soWg== X-Forwarded-Encrypted: i=1; AJvYcCXytsC2cDfMmOITyQ+nSdpeEUgCYt6BQD8lauyy6FOUv4MDwrDFJ/7VHN3g8Pnv7j9/N1M=@vger.kernel.org X-Gm-Message-State: AOJu0Yxs1W/yBB/5dBluSgX4f5QO8Jq524Mx1pBYG2Pj3wju7U/tcrnT VKFF3/3frLW5k8CMaNo8CcLd8s6F33Wpcb3PpwJj+WzhK2GEegcprBKQgJ8ch5U= X-Gm-Gg: ASbGncuWYkdc6VR2Xy/9UkuXCgIPgbvwmZqKI/s1A7fogGGZZL8TP+r/72moz7uFkrK 2m+zaNzDFXnmK9RJ5pgm3IGJcAlMoX78XTF3Shqa9Dn/c0tNRD03cNpFSxaCoQL4T2hS6+ovhSj coAwos7MdUFk0U65N1OK7xN4WCkFNy8PUKcYT9oA+85LZOgsbR5qN+2UR6rI8uPoNGNMZI+G7Ii 1JBdUu1U1ZWZOECHWa3kIo3PR+rSRJec14Fb1sEkL+NnehFNbVyRvhBXyzLEakUGMWcTHim9eaW OAvHpe9JxIoMCo7YtOXjhXmkMcZh X-Google-Smtp-Source: AGHT+IFdfSM4LoL408uYEIffufa8tyqHYMXtXIXqsBrutmD1adLWVCNfMy18lpD4qkSPUrqnOkGRNw== X-Received: by 2002:a17:90b:270d:b0:2ee:863e:9ffc with SMTP id 98e67ed59e1d1-2f782ca5d86mr58401904a91.21.1738040402292; Mon, 27 Jan 2025 21:00:02 -0800 (PST) Received: from atishp.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2f7ffa5a7f7sm8212776a91.11.2025.01.27.21.00.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Jan 2025 21:00:02 -0800 (PST) From: Atish Patra Date: Mon, 27 Jan 2025 20:59:49 -0800 Subject: [PATCH v3 08/21] dt-bindings: riscv: add Counter delegation ISA extensions description Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250127-counter_delegation-v3-8-64894d7e16d5@rivosinc.com> References: <20250127-counter_delegation-v3-0-64894d7e16d5@rivosinc.com> In-Reply-To: <20250127-counter_delegation-v3-0-64894d7e16d5@rivosinc.com> To: Paul Walmsley , Palmer Dabbelt , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Anup Patel , Atish Patra , Will Deacon , Mark Rutland , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , weilin.wang@intel.com Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Conor Dooley , devicetree@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, Atish Patra X-Mailer: b4 0.15-dev-13183 Add description for the Smcdeleg/Ssccfg extension. Signed-off-by: Atish Patra Acked-by: Conor Dooley --- Documentation/devicetree/bindings/riscv/extensions.yaml | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml index f47d829545db..1706a77729db 100644 --- a/Documentation/devicetree/bindings/riscv/extensions.yaml +++ b/Documentation/devicetree/bindings/riscv/extensions.yaml @@ -128,6 +128,14 @@ properties: changes to interrupts as frozen at commit ccbddab ("Merge pull request #42 from riscv/jhauser-2023-RC4") of riscv-aia. + - const: smcdeleg + description: | + The standard Smcdeleg supervisor-level extension for the machine mode + to delegate the hpmcounters to supvervisor mode so that they are + directlyi accessible in the supervisor mode as ratified in the + 20240213 version of the privileged ISA specification. This extension + depends on Sscsrind, Zihpm, Zicntr extensions. + - const: smmpm description: | The standard Smmpm extension for M-mode pointer masking as @@ -169,6 +177,14 @@ properties: behavioural changes to interrupts as frozen at commit ccbddab ("Merge pull request #42 from riscv/jhauser-2023-RC4") of riscv-aia. + - const: ssccfg + description: | + The standard Ssccfg supervisor-level extension for configuring + the delegated hpmcounters to be accessible directly in supervisor + mode as ratified in the 20240213 version of the privileged ISA + specification. This extension depends on Sscsrind, Smcdeleg, Zihpm, + Zicntr extensions. + - const: sscofpmf description: | The standard Sscofpmf supervisor-level extension for count overflow