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Wed, 18 Dec 2024 16:36:47 -0800 (PST) Message-ID: <76505ca3-b5a7-4cb1-90ce-0c7951c0b3b6@sifive.com> Date: Wed, 18 Dec 2024 18:36:44 -0600 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/3] dt-bindings: riscv: add bfloat16 ISA extension description To: Jessica Clarke , Inochi Amaoto Cc: linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Yixun Lan , Longbin Li , Conor Dooley , Chen Wang , Jonathan Corbet , Paul Walmsley , Palmer Dabbelt , Albert Ou , Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?UTF-8?B?Q2zDqW1lbnQgTMOpZ2Vy?= , Evan Green , Charlie Jenkins , Andrew Jones , Jesse Taube , Andy Chiu , Alexandre Ghiti , Yong-Xuan Wang References: <20241206055829.1059293-1-inochiama@gmail.com> <20241206055829.1059293-2-inochiama@gmail.com> <5e878b5b-b49d-4757-8f7e-4b323a4998b3@sifive.com> From: Samuel Holland Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 2024-12-16 4:51 PM, Jessica Clarke wrote: > On 16 Dec 2024, at 22:00, Samuel Holland wrote: >> >> On 2024-12-05 11:58 PM, Inochi Amaoto wrote: >>> Add description for the BFloat16 precision Floating-Point ISA extension, >>> (Zfbfmin, Zvfbfmin, Zvfbfwma). which was ratified in commit 4dc23d62 >>> ("Added Chapter title to BF16") of the riscv-isa-manual. >>> >>> Signed-off-by: Inochi Amaoto >>> Acked-by: Conor Dooley >>> --- >>> .../devicetree/bindings/riscv/extensions.yaml | 45 +++++++++++++++++++ >>> 1 file changed, 45 insertions(+) >>> >>> diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml >>> index 9c7dd7e75e0c..0a1f1a76d129 100644 >>> --- a/Documentation/devicetree/bindings/riscv/extensions.yaml >>> +++ b/Documentation/devicetree/bindings/riscv/extensions.yaml >>> @@ -329,6 +329,12 @@ properties: >>> instructions, as ratified in commit 056b6ff ("Zfa is ratified") of >>> riscv-isa-manual. >>> >>> + - const: zfbfmin >>> + description: >>> + The standard Zfbfmin extension which provides minimal support for >>> + 16-bit half-precision brain floating-point instructions, as ratified >> >> I think you mean "binary" here and in the entries below, not "brain”. > > No, that’s Zfhmin / FP16 / binary16, not Zfbfmin / BF16 / BFloat16? The > B is for Brain as it came out of Google Brain. > > https://en.wikipedia.org/wiki/Bfloat16_floating-point_format Ah, yes, I was the confused one here. Sorry for the noise.