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[73.95.159.87]) by smtp.gmail.com with ESMTPSA id g186sm6420614ite.39.2018.12.21.11.13.41 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 21 Dec 2018 11:13:41 -0800 (PST) From: Paul Walmsley X-Google-Original-From: Paul Walmsley Date: Fri, 21 Dec 2018 11:13:41 -0800 (PST) To: Alistair Francis cc: "Palmpalmer@sifive.com" , "linux-riscv@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] RISC-V: defconfig: Enable Generic PCIE by default In-Reply-To: <20181221190615.19003-1-alistair.francis@wdc.com> Message-ID: References: <20181221190615.19003-1-alistair.francis@wdc.com> User-Agent: Alpine 2.21.9999 (DEB 301 2018-08-15) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Alistair, On Fri, 21 Dec 2018, Alistair Francis wrote: > Enable generic PCIe by default in the RISC-V defconfig, this allows us > to use QEMU's PCIe support out of the box. Also remove the Xilinx PCIe > support by default as this is rarely used and conflicts with the more > commonly used (out of tree) MicroSemi PCIe root complex. There are many folks working on FPGAs who use the Xilinx driver. Also, we should not remove support for an in-tree driver because an out-of-tree driver conflicts. The right approach is to get the out-of-tree driver upstream. Enabling general support for PCIe in the defconfig should be fine, though. - Paul