From patchwork Fri May 24 09:23:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Sven_P=C3=BCschel?= X-Patchwork-Id: 13672933 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 750F4C25B7D for ; Fri, 24 May 2024 09:26:06 +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:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=L2qNSFQPaLIEd14W6VSB+rhXkFoPZ4HlscVPSPGUsPk=; b=2jDw4kOKsCKgI6 w3jLxO4QaWjE1+UpXQprAmSpjpMzP1nauv028uoK6jsrQhufWO5C4ruc7wvCqcvReOkvynIHLySW2 tVt/zqz2vl4FbfwR3vkUrEu23ZiabmmUdFlNaY+8+G3Jk5zrlUu8/PUuyNVnSNXp3teMH/Y8ncLsE jcgL8BzFSyzhuSqLoSpqxPNBQ2NBSYBcco8tm6CFLMzxG5SvYSMHJVVH5GxkOsi7C85pxFHLCc6NZ mqEVX5Nn21KQYdBoY3UQPl7moiSzDXfuhbqhAdxm1SnnwqO3Q7hAgGQWiLcS2qRiO4PeOVeJsP+fl Fw3f7RFuMJADdkaekDOw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sARBU-00000008Y0R-0rUr; Fri, 24 May 2024 09:25:56 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sARBR-00000008Xyn-1BAX for linux-arm-kernel@lists.infradead.org; Fri, 24 May 2024 09:25:54 +0000 Received: from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1sARBB-0007SY-J8; Fri, 24 May 2024 11:25:37 +0200 From: =?utf-8?q?Sven_P=C3=BCschel?= To: hjc@rock-chips.com, heiko@sntech.de, andy.yan@rock-chips.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, daniel@ffwll.ch Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, Michael Tretter , =?utf-8?q?Sven_P=C3=BCschel?= Subject: [PATCH] drm/rockchip: Set DMA max segment size Date: Fri, 24 May 2024 11:23:59 +0200 Message-Id: <20240524092400.2019587-1-s.pueschel@pengutronix.de> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::ac X-SA-Exim-Mail-From: s.pueschel@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240524_022553_350415_580555F0 X-CRM114-Status: UNSURE ( 8.55 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Michael Tretter There is no reason to limit the DMA max segment size for the Rockchip VOP and VOP2. Set it to the maximum. This prevents the following warning when DMA API debugging is enabled with CONFIG_DMA_API_DEBUG_SG=y: DMA-API: rockchip-drm display-subsystem: mapping sg segment longer than device claims to support [len=208896] [max=65536] Signed-off-by: Michael Tretter Signed-off-by: Sven Püschel --- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 2 ++ 1 file changed, 2 insertions(+) base-commit: 39bc27bd688066a63e56f7f64ad34fae03fbe3b8 diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index ab55d7132550..0f93efd1a8fa 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -67,6 +67,8 @@ int rockchip_drm_dma_attach_device(struct drm_device *drm_dev, } } + dma_set_max_seg_size(drm_dev->dev, UINT_MAX); + ret = iommu_attach_device(private->domain, dev); if (ret) { DRM_DEV_ERROR(dev, "Failed to attach iommu device\n");