From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f173.google.com (mail-yb1-f173.google.com [209.85.219.173]) (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 8224B2192EF for ; Thu, 10 Jul 2025 04:58:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752123493; cv=none; b=CLBlec4f2pQRwYnM8Zq6OIxYtnyiurBn7kjj9h0uOtYB3tKpqIqNVQjPX1d0a3KtyA6ZKmgj3byDOI5HO8ew5Updeir9OEP6nFehD6Rkg7+t+p6Gb3JoZNimsVbuIrJktx9irL/Gau97t3pGdqIoGLKGm3UGNMoHWhJL2ez7jZc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752123493; c=relaxed/simple; bh=yO8H/Y98j2CWVFUe/hDF9GBVVNe4jMEqnXPweoW3ibI=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=GLPYv6G/IPLai1fAr0wDup6E8f1asP3ZkPPjI6lhKMe2N7UbmcQmcgHxAUabxoyOcDWg/msLq586dZ/ul5HTiyb4fAZzjxJdAxb4Bf5rmFAqxFd2JA1ufhYguaXCCk5yBpasraddU+d3JXcNf2gVLMH4IYSaePZmgWU/EC6fRyk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=sifive.com; spf=pass smtp.mailfrom=sifive.com; dkim=pass (2048-bit key) header.d=sifive.com header.i=@sifive.com header.b=ENcTZDlE; arc=none smtp.client-ip=209.85.219.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=sifive.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sifive.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sifive.com header.i=@sifive.com header.b="ENcTZDlE" Received: by mail-yb1-f173.google.com with SMTP id 3f1490d57ef6-e7dc89108bfso441622276.3 for ; Wed, 09 Jul 2025 21:58:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; t=1752123490; x=1752728290; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=lEpA0IRuEna9Mxwq9qK3aS6tQm5TZpbjQfz5HQP3aX4=; b=ENcTZDlEtLmEGtIuDnjD/X4aGnh6tWV0XhGY6ld0OpVwWxNQi/j2dOK5ujRcY+2kba YkK3umA0RsljqZJ2InrwiLj5iNwjKl5xOnzgnJyGKxM4GCKYND+OG5Rhf5kICQ4n/4CB dKtEwXJuM4E9MqWs0lBjdA8tA/DRpzSpavQwzP4Yqg8IpUSvpO32/jfNk80InwMt+tJ7 Gy3bJ+rMKZErcVC9gVbm6OWoK40TFNR2T4X++sSvvSFHvM97fRkhYO/AOOSRKe4Xhm5k DkwENA3+oN1jTGLkKJrIgBdfHNDYvcaLpmfiKw+MLWP8NmK4jIpGleSw9m8KAAhzMOgH rM/A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752123490; x=1752728290; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=lEpA0IRuEna9Mxwq9qK3aS6tQm5TZpbjQfz5HQP3aX4=; b=VQqG0RlqulfSmeTLe3+uZzdHnwsrV2wCK5kkjvQW4qSLZqsKQ0us/GjS0tOE2gbPbH dHSt3xCKUV8bN8D+CyyJjrDU9iBr17FTaqp4/Bu/0J+sDNk9ejPUICpLoRH2wipl8lkN oIGytZcHkGHbOzSfaY0U6u/xpSd5NRgNPGsSIEzB7+TH2Iqef3MgfH7GIDDnM3diwXvd XDg4aALI+GCceuxO10SNZX1x6IdbHb5//5zKB2qrt2fHY95eXsF3kEVu5UI4/XmPshm0 /lWDYzql9P7kQaqDg+h/IrPlVwvsgF01QOPb3sVTBskmDGFAq7hh7qUrI/GxLMNczI4z ZM0A== X-Forwarded-Encrypted: i=1; AJvYcCXdHrLsxu1zAhILFC+PxlIXnqQ6Sbv/7zYMolipp19xKuzUbi7WljV2JbGVa29v7pEiVzxlzfdvbO7f@vger.kernel.org X-Gm-Message-State: AOJu0Yw6IWEB9Q2h+nZpvY3UyAI2eLjjb/NUXon4Ip+CXycKsxUtGo7L 8TncIbVCN5mVtIxI0oASTAXMcCUezr7CI5c5n5Zyhw7Bau3a2gGKil1RL5hpQfOmJoh1+TmQ3zS kznw9kqSSqcqIkn2aB8iYYrtODmElQ9pAMzhkwR6mjA== X-Gm-Gg: ASbGnctOz/3mMrXR/OlvAsI3heqcMqwFhN0MAW9AHbSmwEeOkWjvuXGTRJie0EoqUMl OY1j0c2Jm+nJHStnC557CPur3EVkacFsz7qfcg2k+TDWOVqYLFqkwgQOb2n5L2n8u+OikHllPGS lwbRmmHjaMudpeBFk8hXQVHCt5w4jRwbM7h1FUWuUEQmA9yA== X-Google-Smtp-Source: AGHT+IFBYcBC73q2IeV+mY8fvhVWFYle/lCmmpRL/KWBCNFpGZtXkk2v1VGFKH7y6dlMRGRRkw9pg5tbSYlMjv4lsDk= X-Received: by 2002:a05:6902:2843:b0:e85:fba9:30d0 with SMTP id 3f1490d57ef6-e8b6e1078d5mr6486297276.2.1752123490524; Wed, 09 Jul 2025 21:58:10 -0700 (PDT) Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20250708065242.26371-1-nick.hu@sifive.com> <20250709-startup-coasting-aa58a99c5585@spud> In-Reply-To: <20250709-startup-coasting-aa58a99c5585@spud> From: Nick Hu Date: Thu, 10 Jul 2025 12:57:59 +0800 X-Gm-Features: Ac12FXx9o-b6Tc_SNFG1ki4fAOGr8tZ3fgq0-I4XfIsnvROH-808KefUmWQHcuM Message-ID: Subject: Re: [PATCH] dt-bindings: riscv: Add SiFive vendor extensions description To: Conor Dooley Cc: Paul Walmsley , Palmer Dabbelt , linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Palmer Dabbelt , Albert Ou Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, Jul 10, 2025 at 12:00=E2=80=AFAM Conor Dooley wr= ote: > > On Tue, Jul 08, 2025 at 02:52:42PM +0800, Nick Hu wrote: > > Add description for SiFive vendor extensions "xsfcflushdlone", > > "xsfpgflushdlone" and "xsfcease". > > > > Signed-off-by: Nick Hu > > You have this, but no user or anything along with it. What's actually > making use of this? If it's just for the SBI impl or w/e then say that. > It's for the SBI implementation. I'll update it in the commit message. Thanks! Best Regard, Nick > > --- > > .../devicetree/bindings/riscv/extensions.yaml | 18 ++++++++++++++++++ > > 1 file changed, 18 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/= Documentation/devicetree/bindings/riscv/extensions.yaml > > index 72c1b063fdfe..10c37c61243d 100644 > > --- a/Documentation/devicetree/bindings/riscv/extensions.yaml > > +++ b/Documentation/devicetree/bindings/riscv/extensions.yaml > > @@ -626,6 +626,24 @@ properties: > > https://www.andestech.com/wp-content/uploads/AX45MP-1C-Rev= .-5.0.0-Datasheet.pdf > > > > # SiFive > > + - const: xsfcease > > + description: > > + SiFive CEASE Instruction Extensions Specification. > > + See more details in > > + https://www.sifive.com/document-file/freedom-u740-c000-man= ual > > + > > + - const: xsfcflushdlone > > + description: > > + SiFive L1D Cache Flush Instruction Extensions Specificatio= n. > > + See more details in > > + https://www.sifive.com/document-file/freedom-u740-c000-man= ual > > + > > + - const: xsfpgflushdlone > > + description: > > + SiFive PGFLUSH Instruction Extensions for the power manage= ment. The > > + CPU will flush the L1D and enter the cease state after exe= cuting > > + the instruction. > > + > > - const: xsfqmaccdod > > description: > > SiFive Int8 Matrix Multiplication Extensions Specification= . > > -- > > 2.17.1 > >