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In-Reply-To: From: Palmer Dabbelt To: Paul Walmsley Message-ID: Mime-Version: 1.0 (MHng) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190807_083751_325003_2B28C8F5 X-CRM114-Status: GOOD ( 16.80 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, aou@eecs.berkeley.edu, tiny.windzz@gmail.com, Greg KH , daniel.lezcano@linaro.org, linux-kernel@vger.kernel.org, johan@kernel.org, Atish Patra , Anup Patel , robh+dt@kernel.org, gary@garyguo.net, tglx@linutronix.de, info@metux.net, linux-riscv@lists.infradead.org, allison@lohutok.net Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org On Tue, 06 Aug 2019 18:26:08 PDT (-0700), Paul Walmsley wrote: > On Wed, 7 Aug 2019, Atish Patra wrote: > >> On Tue, 2019-08-06 at 16:27 -0700, Paul Walmsley wrote: >> >> > Seems like the "su" should be dropped from mandatory_ext. What do you >> > think? >> > >> >> Yup. As DT binding only mention imafdc, mandatory extensions should >> contain only that and just consider "su" extensions are considered as >> implicit as we are running Linux. > > Discussing this with Andrew and Palmer, it looks like "su" is currently > non-compliant. Section 22.6 of the user-level specification states that > the "s" character indicates that a longer standard supervisor extension > name will follow. So far I don't think any of these have been defined. > >> Do you think QEMU DT should be updated to reflect that ? > > Yes. https://lists.nongnu.org/archive/html/qemu-riscv/2019-08/msg00141.html > >> > There's no Kconfig option by this name, and we're requiring >> > compressed >> >> Sorry. This was a typo. It should have been CONFIG_RISCV_ISA_C. >> >> > instruction support as part of the RISC-V Linux baseline. Could you >> > share the rationale behind this? >> >> I think I added this check at the config file. Looking at the Kconfig, >> RISCV_ISA_C is always enabled. So we can drop this. > > OK great. Do you want to resend an updated patch, or would you like me to > fix it up here? > > I'll also send a patch to drop CONFIG_RISCV_ISA_C. > > > - Paul _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv