From patchwork Fri Oct 13 11:00:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Tretter X-Patchwork-Id: 733818 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B841CDB486 for ; Fri, 13 Oct 2023 11:01:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230039AbjJMLBT (ORCPT ); Fri, 13 Oct 2023 07:01:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229839AbjJMLBQ (ORCPT ); Fri, 13 Oct 2023 07:01:16 -0400 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [IPv6:2a0a:edc0:2:b01:1d::104]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D1293BF for ; Fri, 13 Oct 2023 04:01:14 -0700 (PDT) Received: from dude05.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::54]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1qrFuU-0006xJ-8e; Fri, 13 Oct 2023 13:00:50 +0200 From: Michael Tretter Date: Fri, 13 Oct 2023 13:00:27 +0200 Subject: [PATCH v2 06/13] media: rockchip: rga: set dma mask to 32 bits MIME-Version: 1.0 Message-Id: <20230914-rockchip-rga-multiplanar-v2-6-bbfa6abf8bbf@pengutronix.de> References: <20230914-rockchip-rga-multiplanar-v2-0-bbfa6abf8bbf@pengutronix.de> In-Reply-To: <20230914-rockchip-rga-multiplanar-v2-0-bbfa6abf8bbf@pengutronix.de> To: Jacob Chen , Ezequiel Garcia , Mauro Carvalho Chehab , Heiko Stuebner , Shengyu Qu , Nicolas Frattaroli , Robin Murphy , Diederik de Haas , Hans Verkuil Cc: linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, Michael Tretter X-Mailer: b4 0.12.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::54 X-SA-Exim-Mail-From: m.tretter@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-media@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The RGA DMA descriptor list contains only 32-bit addresses. Set the dma_mask to only allocate memory that is addressable by the descriptors. This prevents errors when preparing vb2 buffers that were allocated by the RGA. Signed-off-by: Michael Tretter --- Changes in v2: - Add mask for DMA coherent - Set gfp_flags to DMA32 --- drivers/media/platform/rockchip/rga/rga.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c index f18fccc7b204..ea566c11734a 100644 --- a/drivers/media/platform/rockchip/rga/rga.c +++ b/drivers/media/platform/rockchip/rga/rga.c @@ -98,6 +98,7 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) src_vq->drv_priv = ctx; src_vq->ops = &rga_qops; src_vq->mem_ops = &vb2_dma_sg_memops; + dst_vq->gfp_flags = __GFP_DMA32; src_vq->buf_struct_size = sizeof(struct rga_vb_buffer); src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; src_vq->lock = &ctx->rga->mutex; @@ -112,6 +113,7 @@ queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) dst_vq->drv_priv = ctx; dst_vq->ops = &rga_qops; dst_vq->mem_ops = &vb2_dma_sg_memops; + dst_vq->gfp_flags = __GFP_DMA32; dst_vq->buf_struct_size = sizeof(struct rga_vb_buffer); dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; dst_vq->lock = &ctx->rga->mutex; @@ -824,6 +826,12 @@ static int rga_probe(struct platform_device *pdev) goto err_put_clk; } + ret = dma_set_mask_and_coherent(rga->dev, DMA_BIT_MASK(32)); + if (ret) { + dev_err(rga->dev, "32-bit DMA not supported"); + goto err_put_clk; + } + ret = v4l2_device_register(&pdev->dev, &rga->v4l2_dev); if (ret) goto err_put_clk;