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[98.32.39.159]) by smtp.gmail.com with ESMTPSA id a26-20020a02ac1a000000b0047133a05f33sm2484253jao.49.2024.02.14.07.44.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Feb 2024 07:44:35 -0800 (PST) Date: Wed, 14 Feb 2024 07:44:33 -0800 (PST) From: Paul Walmsley To: Palmer Dabbelt cc: linux-riscv@lists.infradead.org, Greg KH , jirislaby@kernel.org, Atish Patra , ajones@ventanamicro.com, apatel@ventanamicro.com, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Emil Renner Berthing Subject: Re: [PATCH] tty: hvc: Don't enable the RISC-V SBI console by default In-Reply-To: <20240214153429.16484-2-palmer@rivosinc.com> Message-ID: <0e41108b-2a64-2144-34f1-e7c0f1ec952f@sifive.com> References: <20240214153429.16484-2-palmer@rivosinc.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240214_074437_548420_4659173D X-CRM114-Status: UNSURE ( 9.94 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-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; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Wed, 14 Feb 2024, Palmer Dabbelt wrote: > From: Palmer Dabbelt > > The new SBI console has the same problem as the old one: there's only > one shared backing hardware and no synchronization, so the two drivers > end up stepping on each other. This was the same issue the old SBI-0.1 > console drivers had, but that was disabled by default when SBI-0.1 was. > > So just mark the new driver as nonportable. > > Reported-by: Emil Renner Berthing > Fixes: 88ead68e764c ("tty: Add SBI debug console support to HVC SBI driver") > Signed-off-by: Palmer Dabbelt Reviewed-by: Paul Walmsley - Paul _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv