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Fri, 06 May 2022 13:06:14 +0100 Date: Fri, 06 May 2022 13:06:14 +0100 Message-ID: <87pmkq7tmx.wl-maz@kernel.org> From: Marc Zyngier To: Linus Walleij , Christoph Hellwig Cc: Russell King , Arnd Bergmann , Andre Przywara , Andrew Lunn , Gregory Clement , Sebastian Hesselbarth , Greg Kroah-Hartman , Alan Stern , Laurentiu Tudor , Marek Szyprowski , Robin Murphy , iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: fully convert arm to use dma-direct In-Reply-To: References: <20220421074204.1284072-1-hch@lst.de> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: linus.walleij@linaro.org, hch@lst.de, linux@armlinux.org.uk, arnd@kernel.org, andre.przywara@arm.com, andrew@lunn.ch, gregory.clement@bootlin.com, sebastian.hesselbarth@gmail.com, gregkh@linuxfoundation.org, stern@rowland.harvard.edu, laurentiu.tudor@nxp.com, m.szyprowski@samsung.com, robin.murphy@arm.com, iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220506_050619_456677_68E2D199 X-CRM114-Status: GOOD ( 20.82 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 22 Apr 2022 22:17:20 +0100, Linus Walleij wrote: > > On Thu, Apr 21, 2022 at 9:42 AM Christoph Hellwig wrote: > > > arm is the last platform not using the dma-direct code for directly > > mapped DMA. With the dmaboune removal from Arnd we can easily switch > > arm to always use dma-direct now (it already does for LPAE configs > > and nommu). I'd love to merge this series through the dma-mapping tree > > as it gives us the opportunity for additional core dma-mapping > > improvements. > (...) > > > b/arch/arm/mach-footbridge/Kconfig | 1 > > b/arch/arm/mach-footbridge/common.c | 19 > > b/arch/arm/mach-footbridge/include/mach/dma-direct.h | 8 > > b/arch/arm/mach-footbridge/include/mach/memory.h | 4 > > I think Marc Z has a Netwinder that he can test this on. Marc? > I have one too, just not much in my office because of parental leave. Finally found some time to hook the machine up and throw a new kernel at it. Booted at its usual glacial speed, so FWIW: Tested-by: Marc Zyngier Thanks, M. -- Without deviation from the norm, progress is not possible. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel