From nobody Mon Feb 9 22:39:02 2026 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (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 C423335CBDD for ; Tue, 27 Jan 2026 14:40:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769524825; cv=none; b=sM8TscI7EMoVd/QCE+t3qHehZfjFtLlUDsMcJr21WWCIFY4N/Uzj7jcVsBHdaZD9IOKQnj8+qncg17kly5J54JxhpPOBHPvQRmfP3i0vJ2A67V/nIEypp85CIqanB8qCWQVvtRoMV0Q7Sy0G6SKM+bgVbyHiMfff0U8ZZkZy+o0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769524825; c=relaxed/simple; bh=GQr6gJ6RW3y3I5PfRuJXbEG83bn3Uw0rmyDi3r9F/r0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ppaHyC/ngqZ8ruTsrGViaTNWuOH0mzHEBm7+axvBJosDj+mNmHsbtNYjbwO41aN8LwJkXMQOxA4V0W2kqgbs2FHG9nTKDFrGT26Sm0efdifvD9Hr9fC2JxpmZpGogC9a9PfY4c8wKlaJMpM7Mpq3JiBNBMPuHpyhCfgq+CvuSZM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=peter.mobile.pengutronix.de) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1vkkEv-0007YT-MF; Tue, 27 Jan 2026 15:40:21 +0100 From: =?utf-8?q?Sven_P=C3=BCschel?= Date: Tue, 27 Jan 2026 15:39:22 +0100 Subject: [PATCH v3 13/27] media: rockchip: rga: move cmdbuf to rga_ctx Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260127-spu-rga3-v3-13-77b273067beb@pengutronix.de> References: <20260127-spu-rga3-v3-0-77b273067beb@pengutronix.de> In-Reply-To: <20260127-spu-rga3-v3-0-77b273067beb@pengutronix.de> To: Jacob Chen , Ezequiel Garcia , Mauro Carvalho Chehab , Heiko Stuebner , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, kernel@pengutronix.de, =?utf-8?q?Sven_P=C3=BCschel?= , Nicolas Dufresne X-Mailer: b4 0.14.3 X-SA-Exim-Connect-IP: 2a0a:edc0:0:900:1d::77 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-kernel@vger.kernel.org Move the command buffer to the rga_ctx struct in preparation to reuse an already prepared command buffer. This allows to split the command buffer setup in a further commit to setup a template for the command buffer at streamon and only update the buffer addresses in device_run and trigger the command stream. No sync point is added, as one command buffer should only be used for one conversion at a time. Reviewed-by: Nicolas Dufresne Signed-off-by: Sven P=C3=BCschel --- drivers/media/platform/rockchip/rga/rga-hw.c | 28 +++++++--------- drivers/media/platform/rockchip/rga/rga.c | 48 ++++++++++++++++--------= ---- drivers/media/platform/rockchip/rga/rga.h | 5 +-- 3 files changed, 41 insertions(+), 40 deletions(-) diff --git a/drivers/media/platform/rockchip/rga/rga-hw.c b/drivers/media/p= latform/rockchip/rga/rga-hw.c index 7405355c334ad..caf2424962351 100644 --- a/drivers/media/platform/rockchip/rga/rga-hw.c +++ b/drivers/media/platform/rockchip/rga/rga-hw.c @@ -122,8 +122,7 @@ static struct rga_addr_offset *rga_lookup_draw_pos(stru= ct =20 static void rga_cmd_set_src_addr(struct rga_ctx *ctx, dma_addr_t dma_addr) { - struct rockchip_rga *rga =3D ctx->rga; - u32 *dest =3D rga->cmdbuf_virt; + u32 *dest =3D ctx->cmdbuf_virt; unsigned int reg; =20 reg =3D RGA_MMU_SRC_BASE - RGA_MODE_BASE_REG; @@ -135,8 +134,7 @@ static void rga_cmd_set_src_addr(struct rga_ctx *ctx, d= ma_addr_t dma_addr) =20 static void rga_cmd_set_src1_addr(struct rga_ctx *ctx, dma_addr_t dma_addr) { - struct rockchip_rga *rga =3D ctx->rga; - u32 *dest =3D rga->cmdbuf_virt; + u32 *dest =3D ctx->cmdbuf_virt; unsigned int reg; =20 reg =3D RGA_MMU_SRC1_BASE - RGA_MODE_BASE_REG; @@ -148,8 +146,7 @@ static void rga_cmd_set_src1_addr(struct rga_ctx *ctx, = dma_addr_t dma_addr) =20 static void rga_cmd_set_dst_addr(struct rga_ctx *ctx, dma_addr_t dma_addr) { - struct rockchip_rga *rga =3D ctx->rga; - u32 *dest =3D rga->cmdbuf_virt; + u32 *dest =3D ctx->cmdbuf_virt; unsigned int reg; =20 reg =3D RGA_MMU_DST_BASE - RGA_MODE_BASE_REG; @@ -162,7 +159,7 @@ static void rga_cmd_set_dst_addr(struct rga_ctx *ctx, d= ma_addr_t dma_addr) static void rga_cmd_set_trans_info(struct rga_ctx *ctx) { struct rockchip_rga *rga =3D ctx->rga; - u32 *dest =3D rga->cmdbuf_virt; + u32 *dest =3D ctx->cmdbuf_virt; unsigned int scale_dst_w, scale_dst_h; unsigned int src_h, src_w, dst_h, dst_w; union rga_src_info src_info; @@ -322,8 +319,7 @@ static void rga_cmd_set_src_info(struct rga_ctx *ctx, struct rga_addr_offset *offset) { struct rga_corners_addr_offset src_offsets; - struct rockchip_rga *rga =3D ctx->rga; - u32 *dest =3D rga->cmdbuf_virt; + u32 *dest =3D ctx->cmdbuf_virt; unsigned int src_h, src_w, src_x, src_y; =20 src_h =3D ctx->in.crop.height; @@ -350,8 +346,7 @@ static void rga_cmd_set_dst_info(struct rga_ctx *ctx, { struct rga_addr_offset *dst_offset; struct rga_corners_addr_offset offsets; - struct rockchip_rga *rga =3D ctx->rga; - u32 *dest =3D rga->cmdbuf_virt; + u32 *dest =3D ctx->cmdbuf_virt; unsigned int dst_h, dst_w, dst_x, dst_y; unsigned int mir_mode =3D 0; unsigned int rot_mode =3D 0; @@ -397,8 +392,7 @@ static void rga_cmd_set_dst_info(struct rga_ctx *ctx, =20 static void rga_cmd_set_mode(struct rga_ctx *ctx) { - struct rockchip_rga *rga =3D ctx->rga; - u32 *dest =3D rga->cmdbuf_virt; + u32 *dest =3D ctx->cmdbuf_virt; union rga_mode_ctrl mode; union rga_alpha_ctrl0 alpha_ctrl0; union rga_alpha_ctrl1 alpha_ctrl1; @@ -423,7 +417,7 @@ static void rga_cmd_set(struct rga_ctx *ctx, { struct rockchip_rga *rga =3D ctx->rga; =20 - memset(rga->cmdbuf_virt, 0, RGA_CMDBUF_SIZE * 4); + memset(ctx->cmdbuf_virt, 0, RGA_CMDBUF_SIZE * 4); =20 rga_cmd_set_src_addr(ctx, src->dma_desc_pa); /* @@ -439,11 +433,11 @@ static void rga_cmd_set(struct rga_ctx *ctx, rga_cmd_set_dst_info(ctx, &dst->offset); rga_cmd_set_trans_info(ctx); =20 - rga_write(rga, RGA_CMD_BASE, rga->cmdbuf_phy); + rga_write(rga, RGA_CMD_BASE, ctx->cmdbuf_phy); =20 /* sync CMD buf for RGA */ - dma_sync_single_for_device(rga->dev, rga->cmdbuf_phy, - PAGE_SIZE, DMA_BIDIRECTIONAL); + dma_sync_single_for_device(rga->dev, ctx->cmdbuf_phy, + PAGE_SIZE, DMA_BIDIRECTIONAL); } =20 static void rga_hw_start(struct rockchip_rga *rga, diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/plat= form/rockchip/rga/rga.c index 4fa6adb10b7ee..ac42e905a88cd 100644 --- a/drivers/media/platform/rockchip/rga/rga.c +++ b/drivers/media/platform/rockchip/rga/rga.c @@ -219,6 +219,16 @@ static int rga_open(struct file *file) ctx =3D kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; + + /* Create CMD buffer */ + ctx->cmdbuf_virt =3D dma_alloc_attrs(rga->dev, rga->hw->cmdbuf_size, + &ctx->cmdbuf_phy, GFP_KERNEL, + DMA_ATTR_WRITE_COMBINE); + if (!ctx->cmdbuf_virt) { + ret =3D -ENOMEM; + goto rel_ctx; + } + ctx->rga =3D rga; /* Set default formats */ ctx->in =3D def_frame; @@ -230,15 +240,13 @@ static int rga_open(struct file *file) ctx->out.fmt->fourcc, def_width, def_height); =20 if (mutex_lock_interruptible(&rga->mutex)) { - kfree(ctx); - return -ERESTARTSYS; + ret =3D -ERESTARTSYS; + goto rel_cmdbuf; } ctx->fh.m2m_ctx =3D v4l2_m2m_ctx_init(rga->m2m_dev, ctx, &queue_init); if (IS_ERR(ctx->fh.m2m_ctx)) { ret =3D PTR_ERR(ctx->fh.m2m_ctx); - mutex_unlock(&rga->mutex); - kfree(ctx); - return ret; + goto unlock_mutex; } v4l2_fh_init(&ctx->fh, video_devdata(file)); v4l2_fh_add(&ctx->fh, file); @@ -252,6 +260,15 @@ static int rga_open(struct file *file) mutex_unlock(&rga->mutex); =20 return 0; + +unlock_mutex: + mutex_unlock(&rga->mutex); +rel_cmdbuf: + dma_free_attrs(rga->dev, rga->hw->cmdbuf_size, ctx->cmdbuf_virt, + ctx->cmdbuf_phy, DMA_ATTR_WRITE_COMBINE); +rel_ctx: + kfree(ctx); + return ret; } =20 static int rga_release(struct file *file) @@ -266,6 +283,10 @@ static int rga_release(struct file *file) v4l2_ctrl_handler_free(&ctx->ctrl_handler); v4l2_fh_del(&ctx->fh, file); v4l2_fh_exit(&ctx->fh); + + dma_free_attrs(rga->dev, rga->hw->cmdbuf_size, ctx->cmdbuf_virt, + ctx->cmdbuf_phy, DMA_ATTR_WRITE_COMBINE); + kfree(ctx); =20 mutex_unlock(&rga->mutex); @@ -720,19 +741,10 @@ static int rga_probe(struct platform_device *pdev) =20 pm_runtime_put(rga->dev); =20 - /* Create CMD buffer */ - rga->cmdbuf_virt =3D dma_alloc_attrs(rga->dev, rga->hw->cmdbuf_size, - &rga->cmdbuf_phy, GFP_KERNEL, - DMA_ATTR_WRITE_COMBINE); - if (!rga->cmdbuf_virt) { - ret =3D -ENOMEM; - goto rel_m2m; - } - ret =3D video_register_device(vfd, VFL_TYPE_VIDEO, -1); if (ret) { v4l2_err(&rga->v4l2_dev, "Failed to register video device\n"); - goto free_dma; + goto rel_m2m; } =20 v4l2_info(&rga->v4l2_dev, "Registered %s as /dev/%s\n", @@ -740,9 +752,6 @@ static int rga_probe(struct platform_device *pdev) =20 return 0; =20 -free_dma: - dma_free_attrs(rga->dev, rga->hw->cmdbuf_size, rga->cmdbuf_virt, - rga->cmdbuf_phy, DMA_ATTR_WRITE_COMBINE); rel_m2m: v4l2_m2m_release(rga->m2m_dev); rel_vdev: @@ -759,9 +768,6 @@ static void rga_remove(struct platform_device *pdev) { struct rockchip_rga *rga =3D platform_get_drvdata(pdev); =20 - dma_free_attrs(rga->dev, rga->hw->cmdbuf_size, rga->cmdbuf_virt, - rga->cmdbuf_phy, DMA_ATTR_WRITE_COMBINE); - v4l2_info(&rga->v4l2_dev, "Removing\n"); =20 v4l2_m2m_release(rga->m2m_dev); diff --git a/drivers/media/platform/rockchip/rga/rga.h b/drivers/media/plat= form/rockchip/rga/rga.h index 27b3c9b4f220c..04aeb7b429523 100644 --- a/drivers/media/platform/rockchip/rga/rga.h +++ b/drivers/media/platform/rockchip/rga/rga.h @@ -53,6 +53,9 @@ struct rga_ctx { struct rga_frame out; struct v4l2_ctrl_handler ctrl_handler; =20 + void *cmdbuf_virt; + dma_addr_t cmdbuf_phy; + int osequence; int csequence; =20 @@ -89,8 +92,6 @@ struct rockchip_rga { spinlock_t ctrl_lock; =20 struct rga_ctx *curr; - dma_addr_t cmdbuf_phy; - void *cmdbuf_virt; =20 const struct rga_hw *hw; }; --=20 2.52.0