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Tue, 30 Jun 2026 18:17:34 -0700 (PDT) Date: Tue, 30 Jun 2026 18:17:31 -0700 From: Charlie Jenkins To: Radim =?utf-8?B?S3LEjW3DocWZ?= Cc: Paul Walmsley , Palmer Dabbelt , Nam Cao , Alexandre Ghiti , Anup Patel , Atish Patra , Conor Dooley , Paolo Bonzini , Andrew Morton , Shuah Khan , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH v2 01/16] riscv: Introduce instruction table generation Message-ID: References: <20260621-riscv_insn_table-v2-0-7f0810ee2274@gmail.com> <20260621-riscv_insn_table-v2-1-7f0810ee2274@gmail.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Tue, Jun 30, 2026 at 06:45:51PM +0200, Radim Krčmář wrote: > 2026-06-21T21:01:19-07:00, Charlie Jenkins via B4 Relay : > > From: Charlie Jenkins > > > > Eliminate the need to hand-write riscv instructions by using a shell > > script to autogenerate a header from an instruction table. This is modeled > > after the syscall table infrastructure. > > > > The table is generated externally by riscv-unified-db [1], but is > > in a simple format to make it possible to use other tools or modify > > manually. > > > > [1] https://github.com/riscv-software-src/riscv-unified-db > > > > Signed-off-by: Charlie Jenkins > > > > --- > > diff --git a/arch/riscv/tools/insn.tbl b/arch/riscv/tools/insn.tbl > > @@ -0,0 +1,1392 @@ > > +# SPDX-License-Identifier: BSD-3-Clause-Clear > > +# > > +# GENERATED WITH https://github.com/riscv-software-src/riscv-unified-db > > +# "./bin/generate inst-table -o test_table.txt" > > I checked out the repo, ran the command, and got a different table: > > > +andn common 0100000<25|111<12|0110011<0 xs2=24-20 xs1=19-15 xd=11-7 > andn common 0100000<31|111<14|0110011<7 xs2=24-20 xs1=19-15 xd=11-7 > > I assume there were some recent changes in the output format... > > I think it would be nice to use their latest format and also note the > UDB commit that was used, so it's easier to reproduce our file. > Hopefully there won't be breaking changes too often. :) I have a PR open to fix this bug that I missed when it got merged, once that gets merged I can link the hash and there will no longer be this mismatch. > > Thanks. > > --- > Sashiko seems to have noticed a plenty of other issues, so I didn't > review more... Oh thanks, I'll check that out. - Charlie From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2857FC43458 for ; Wed, 1 Jul 2026 01:17:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=JlY0WrU3oeFXQZppP/vRxHEXH+pw/q6xyNjB37A4ZaA=; b=GWMZPzBgBuxj0d pMjCMd4KrmgJdMbTqSbxuQojgrQ6hwV+we3UwJIqrNzhrIKqtAahDPsQgNe7Oj9jgapYSVRBqtZ/D 4syE3dno2L4q4som/NE27fowBUcgnhF16EiCltSo8ozEcSSf8Ae8HHJHq5UDsNnbK7MmwmhpcJ5G/ bniolFaOEJnWLXG+Zhi3IXSKHfDhOBYoPf+I8z/Oq76liCzWPb/+2jF1mZ7GNqyGfdEV8EnwYNY8D EP217zqO+83kgzoODh8E/uZ5Y03FZeFejtgiC5Lkj6/OESHiELKFkBpp1PKcQvg3SSA3oLd7D71gN MEhSivzyjyEdYuPtAukg==; 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Tue, 30 Jun 2026 18:17:34 -0700 (PDT) Received: from blinky ([2601:647:6700:64d0::94ac]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-30efaadc5bfsm940139eec.28.2026.06.30.18.17.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Jun 2026 18:17:34 -0700 (PDT) Date: Tue, 30 Jun 2026 18:17:31 -0700 From: Charlie Jenkins To: Radim =?utf-8?B?S3LEjW3DocWZ?= Cc: Paul Walmsley , Palmer Dabbelt , Nam Cao , Alexandre Ghiti , Anup Patel , Atish Patra , Conor Dooley , Paolo Bonzini , Andrew Morton , Shuah Khan , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH v2 01/16] riscv: Introduce instruction table generation Message-ID: References: <20260621-riscv_insn_table-v2-0-7f0810ee2274@gmail.com> <20260621-riscv_insn_table-v2-1-7f0810ee2274@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260630_181736_611188_D5105B1A X-CRM114-Status: GOOD ( 22.35 ) X-BeenThere: kvm-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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