linux-kernel - [PATCH v4 1/3] media: platform: mtk-mdp3: Get fine-grain control of cmdq_pkt

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Message-Id: <20240901143259.16849-2-chunkuang.hu@kernel.org>
Date: Sun,  1 Sep 2024 14:32:57 +0000
From: Chun-Kuang Hu <chunkuang.hu@...nel.org>
To: Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Moudy Ho <moudy.ho@...iatek.com>,
	"Jason-JH . Lin" <jason-jh.lin@...iatek.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	linux-media@...r.kernel.org
Cc: Chun-Kuang Hu <chunkuang.hu@...nel.org>
Subject: [PATCH v4 1/3] media: platform: mtk-mdp3: Get fine-grain control of cmdq_pkt_finalize()

In order to have fine-grained control, use cmdq_pkt_eoc() and
cmdq_pkt_jump_rel() to replace cmdq_pkt_finalize().

Signed-off-by: Chun-Kuang Hu <chunkuang.hu@...nel.org>
---
 drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c | 3 ++-
 drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c | 2 ++
 drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
index ea2ea119dd2a..ef5dade35fd3 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
@@ -676,7 +676,8 @@ static struct mdp_cmdq_cmd *mdp_cmdq_prepare(struct mdp_dev *mdp,
 		dev_err(dev, "mdp_path_config error %d\n", pp_idx);
 		goto err_free_path;
 	}
-	cmdq_pkt_finalize(&cmd->pkt);
+	cmdq_pkt_eoc(&cmd->pkt);
+	cmdq_pkt_jump_rel(&cmd->pkt, CMDQ_INST_SIZE, mdp->cmdq_shift_pa[pp_idx]);
 
 	for (i = 0; i < num_comp; i++) {
 		s32 inner_id = MDP_COMP_NONE;
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
index 37e7b985d52c..40623c1980bf 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
@@ -312,6 +312,8 @@ static int mdp_probe(struct platform_device *pdev)
 			ret = PTR_ERR(mdp->cmdq_clt[i]);
 			goto err_mbox_destroy;
 		}
+
+		mdp->cmdq_shift_pa[i] = cmdq_get_shift_pa(mdp->cmdq_clt[i]->chan);
 	}
 
 	init_waitqueue_head(&mdp->callback_wq);
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
index 430251f63754..05cade1d098e 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
@@ -126,6 +126,7 @@ struct mdp_dev {
 	u32					id_count;
 	struct ida				mdp_ida;
 	struct cmdq_client			*cmdq_clt[MDP_PP_MAX];
+	u8					cmdq_shift_pa[MDP_PP_MAX];
 	wait_queue_head_t			callback_wq;
 
 	struct v4l2_device			v4l2_dev;
-- 
2.34.1