From patchwork Sun Feb 18 20:43:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 13562043 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1E9F57319D for ; Sun, 18 Feb 2024 20:44:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708289043; cv=none; b=GVsMKju9iIGKs6U7iCMJNC+7kZY8syR1SyMyG+OuDY/vJ/KzpyvZSK6OlQp2jakbdm3J7PJThFscFQtdgeGw0vgtmAW6gocMG6BLZQedVujPVCmT8VVFwV4RonUo7OVAshsIdG986ujDxkxfj+Ye3xgVAUPFLHsbV4maoEl+ZwU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708289043; c=relaxed/simple; bh=oqAdTNIE9xBQbrtEhCFpCuBexXpqVCCV72LrhUwGx3E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WD+EuTU0ywXM3uyu+ggeTuhGwiq+Ab68K/T9/P6uOUcmSDZBLMRK6vGTS1TmvRpwcH3H1/HJpoBjQDmwJMyr70L+Dt4p4eoSar4idasx9Wp/fMUmxC35b1RqTBvyvtkgLOQLclpkBCT7ASyQu2V6yTWLpHnncONg0Esxq7RN4WA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=XYmY0CQE; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="XYmY0CQE" Received: from pendragon.ideasonboard.com (89-27-53-110.bb.dnainternet.fi [89.27.53.110]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 5DDC31BA7; Sun, 18 Feb 2024 21:43:51 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1708289031; bh=oqAdTNIE9xBQbrtEhCFpCuBexXpqVCCV72LrhUwGx3E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XYmY0CQEvDsMAcGbXzgvnmTeG8FGuog7Dn6ipKlMzSdxMk6TpBQyTfWtunoRrOUWl BgdQB8BQ/+hLbBpEAtGZcch2ro6K98NjIGEpqK+gYDbJXSiobvWhe5JpKAphAkUFrd G3ko1oi/42O6YsoNCG1qXpyWNT+2E1gWqJ+HhNA0= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Paul Elder , Adam Ford , Alexander Stein , Dafna Hirschfeld , Heiko Stuebner , Helen Koike , Kieran Bingham , Tomi Valkeinen , linux-rockchip@lists.infradead.org Subject: [PATCH v13 08/12] media: rkisp1: Support i.MX8MP's 34-bit DMA Date: Sun, 18 Feb 2024 22:43:46 +0200 Message-ID: <20240218204350.10916-9-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240218204350.10916-1-laurent.pinchart@ideasonboard.com> References: <20240218204350.10916-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Paul Elder On the ISP that is integrated in the i.MX8MP, DMA addresses have been extended to 34 bits, with the 32 MSBs stored in the DMA address registers and the 2 LSBs set to 0. To support this: - Shift the addresses to the right by 2 when writing to registers - Set the dma mask to 34 bits - Use dma_addr_t instead of u32 when storing the addresses Signed-off-by: Paul Elder Reviewed-by: Laurent Pinchart Signed-off-by: Tomi Valkeinen Tested-by: Alexander Stein Tested-by: Adam Ford Reviewed-by: Tomi Valkeinen Signed-off-by: Laurent Pinchart --- Changes since v12: - Make dma_mask a u64 Changes since v5: - Improve the commit message Changes since v4: - Squash in fix from Tomi: - https://gitlab.com/ideasonboard/nxp/linux/-/commit/d6477fe673b1c0d05d12ae21d8db9a03b07e7fea Changes since v2: - Document the RKISP1_FEATURE_DMA_34BIT bit - Use the rkisp1_has_feature() macro --- .../platform/rockchip/rkisp1/rkisp1-capture.c | 20 ++++++++++--------- .../platform/rockchip/rkisp1/rkisp1-common.h | 4 +++- .../platform/rockchip/rkisp1/rkisp1-dev.c | 8 ++++++++ 3 files changed, 22 insertions(+), 10 deletions(-) diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c index 7d56874c3106..50e86d8ff902 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c @@ -648,11 +648,13 @@ static void rkisp1_dummy_buf_destroy(struct rkisp1_capture *cap) static void rkisp1_set_next_buf(struct rkisp1_capture *cap) { + u8 shift = rkisp1_has_feature(cap->rkisp1, DMA_34BIT) ? 2 : 0; + cap->buf.curr = cap->buf.next; cap->buf.next = NULL; if (!list_empty(&cap->buf.queue)) { - u32 *buff_addr; + dma_addr_t *buff_addr; cap->buf.next = list_first_entry(&cap->buf.queue, struct rkisp1_buffer, queue); list_del(&cap->buf.next->queue); @@ -660,7 +662,7 @@ static void rkisp1_set_next_buf(struct rkisp1_capture *cap) buff_addr = cap->buf.next->buff_addr; rkisp1_write(cap->rkisp1, cap->config->mi.y_base_ad_init, - buff_addr[RKISP1_PLANE_Y]); + buff_addr[RKISP1_PLANE_Y] >> shift); /* * In order to support grey format we capture * YUV422 planar format from the camera and @@ -669,17 +671,17 @@ static void rkisp1_set_next_buf(struct rkisp1_capture *cap) if (cap->pix.cfg->fourcc == V4L2_PIX_FMT_GREY) { rkisp1_write(cap->rkisp1, cap->config->mi.cb_base_ad_init, - cap->buf.dummy.dma_addr); + cap->buf.dummy.dma_addr >> shift); rkisp1_write(cap->rkisp1, cap->config->mi.cr_base_ad_init, - cap->buf.dummy.dma_addr); + cap->buf.dummy.dma_addr >> shift); } else { rkisp1_write(cap->rkisp1, cap->config->mi.cb_base_ad_init, - buff_addr[RKISP1_PLANE_CB]); + buff_addr[RKISP1_PLANE_CB] >> shift); rkisp1_write(cap->rkisp1, cap->config->mi.cr_base_ad_init, - buff_addr[RKISP1_PLANE_CR]); + buff_addr[RKISP1_PLANE_CR] >> shift); } } else { /* @@ -687,11 +689,11 @@ static void rkisp1_set_next_buf(struct rkisp1_capture *cap) * throw data if there is no available buffer. */ rkisp1_write(cap->rkisp1, cap->config->mi.y_base_ad_init, - cap->buf.dummy.dma_addr); + cap->buf.dummy.dma_addr >> shift); rkisp1_write(cap->rkisp1, cap->config->mi.cb_base_ad_init, - cap->buf.dummy.dma_addr); + cap->buf.dummy.dma_addr >> shift); rkisp1_write(cap->rkisp1, cap->config->mi.cr_base_ad_init, - cap->buf.dummy.dma_addr); + cap->buf.dummy.dma_addr >> shift); } /* Set plane offsets */ diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h index 070317196aa1..0afee50b97b9 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h @@ -114,6 +114,7 @@ enum rkisp1_isp_pad { * @RKISP1_FEATURE_MAIN_STRIDE: The ISP supports configurable stride on the main path * @RKISP1_FEATURE_SELF_PATH: The ISP has a self path * @RKISP1_FEATURE_DUAL_CROP: The ISP has the dual crop block at the resizer input + * @RKISP1_FEATURE_DMA_34BIT: The ISP uses 34-bit DMA addresses * * The ISP features are stored in a bitmask in &rkisp1_info.features and allow * the driver to implement support for features present in some ISP versions @@ -124,6 +125,7 @@ enum rkisp1_feature { RKISP1_FEATURE_MAIN_STRIDE = BIT(1), RKISP1_FEATURE_SELF_PATH = BIT(2), RKISP1_FEATURE_DUAL_CROP = BIT(3), + RKISP1_FEATURE_DMA_34BIT = BIT(4), }; #define rkisp1_has_feature(rkisp1, feature) \ @@ -239,7 +241,7 @@ struct rkisp1_vdev_node { struct rkisp1_buffer { struct vb2_v4l2_buffer vb; struct list_head queue; - u32 buff_addr[VIDEO_MAX_PLANES]; + dma_addr_t buff_addr[VIDEO_MAX_PLANES]; }; /* diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c index 885339159763..ff4ba0682068 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c @@ -531,6 +531,7 @@ static int rkisp1_probe(struct platform_device *pdev) struct rkisp1_device *rkisp1; struct v4l2_device *v4l2_dev; unsigned int i; + u64 dma_mask; int ret, irq; u32 cif_id; @@ -544,6 +545,13 @@ static int rkisp1_probe(struct platform_device *pdev) dev_set_drvdata(dev, rkisp1); rkisp1->dev = dev; + dma_mask = rkisp1_has_feature(rkisp1, DMA_34BIT) ? DMA_BIT_MASK(34) : + DMA_BIT_MASK(32); + + ret = dma_set_mask_and_coherent(dev, dma_mask); + if (ret) + return ret; + mutex_init(&rkisp1->stream_lock); rkisp1->base_addr = devm_platform_ioremap_resource(pdev, 0);