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From:   Moudy Ho <moudy.ho@mediatek.com>
To:     Mauro Carvalho Chehab <mchehab@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        Ping-Hsun Wu <ping-hsun.wu@mediatek.com>,
        daoyuan huang <daoyuan.huang@mediatek.com>,
        "Hans Verkuil" <hverkuil-cisco@xs4all.nl>
CC:     <linux-kernel@vger.kernel.org>, <linux-media@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-mediatek@lists.infradead.org>,
        Moudy Ho <moudy.ho@mediatek.com>
Subject: [PATCH v6 07/13] media: platform: mtk-mdp3: extend GCE event waiting in RDMA and WROT
Date:   Fri, 22 Sep 2023 15:41:39 +0800
Message-ID: <20230922074145.11977-8-moudy.ho@mediatek.com>
In-Reply-To: <20230922074145.11977-1-moudy.ho@mediatek.com>
References: <20230922074145.11977-1-moudy.ho@mediatek.com>
MIME-Version: 1.0
Content-Type: text/plain
Precedence: bulk

Support for multiple RDMA/WROT waits for GCE events.

Signed-off-by: Moudy Ho <moudy.ho@mediatek.com>
---
 .../platform/mediatek/mdp3/mdp_cfg_data.c     |  2 ++
 .../platform/mediatek/mdp3/mtk-mdp3-comp.c    | 27 +++++++++++++------
 .../platform/mediatek/mdp3/mtk-mdp3-core.h    |  2 ++
 3 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c b/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c
index 6f77c33074ec..3834efe54e17 100644
--- a/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c
+++ b/drivers/media/platform/mediatek/mdp3/mdp_cfg_data.c
@@ -56,8 +56,10 @@ static const struct mdp_platform_config mt8183_plat_cfg = {
 	.rdma_support_10bit		= true,
 	.rdma_rsz1_sram_sharing		= true,
 	.rdma_upsample_repeat_only	= true,
+	.rdma_event_num			= 1,
 	.rsz_disable_dcm_small_sample	= false,
 	.wrot_filter_constraint		= false,
+	.wrot_event_num			= 1,
 };
 
 static const u32 mt8183_mutex_idx[MDP_MAX_COMP_COUNT] = {
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
index 1831e3d9b0e3..2bf4a6b391b7 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c
@@ -251,14 +251,20 @@ static int config_rdma_subfrm(struct mdp_comp_ctx *ctx,
 
 static int wait_rdma_event(struct mdp_comp_ctx *ctx, struct mdp_cmdq_cmd *cmd)
 {
+	const struct mdp_platform_config *mdp_cfg = __get_plat_cfg(ctx);
 	struct device *dev = &ctx->comp->mdp_dev->pdev->dev;
 	phys_addr_t base = ctx->comp->reg_base;
 	u8 subsys_id = ctx->comp->subsys_id;
 
-	if (ctx->comp->alias_id == 0)
-		MM_REG_WAIT(cmd, ctx->comp->gce_event[MDP_GCE_EVENT_EOF]);
-	else
-		dev_err(dev, "Do not support RDMA1_DONE event\n");
+	if (!mdp_cfg)
+		return -EINVAL;
+
+	if (ctx->comp->alias_id >= mdp_cfg->rdma_event_num) {
+		dev_err(dev, "Invalid RDMA event %d\n", ctx->comp->alias_id);
+		return -EINVAL;
+	}
+
+	MM_REG_WAIT(cmd, ctx->comp->gce_event[MDP_GCE_EVENT_EOF]);
 
 	/* Disable RDMA */
 	MM_REG_WRITE(cmd, subsys_id, base, MDP_RDMA_EN, 0x0, BIT(0));
@@ -553,10 +559,15 @@ static int wait_wrot_event(struct mdp_comp_ctx *ctx, struct mdp_cmdq_cmd *cmd)
 	phys_addr_t base = ctx->comp->reg_base;
 	u8 subsys_id = ctx->comp->subsys_id;
 
-	if (ctx->comp->alias_id == 0)
-		MM_REG_WAIT(cmd, ctx->comp->gce_event[MDP_GCE_EVENT_EOF]);
-	else
-		dev_err(dev, "Do not support WROT1_DONE event\n");
+	if (!mdp_cfg)
+		return -EINVAL;
+
+	if (ctx->comp->alias_id >= mdp_cfg->wrot_event_num) {
+		dev_err(dev, "Invalid WROT event %d!\n", ctx->comp->alias_id);
+		return -EINVAL;
+	}
+
+	MM_REG_WAIT(cmd, ctx->comp->gce_event[MDP_GCE_EVENT_EOF]);
 
 	if (mdp_cfg && mdp_cfg->wrot_filter_constraint)
 		MM_REG_WRITE(cmd, subsys_id, base, VIDO_MAIN_BUF_SIZE, 0x0,
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
index 22d1b17ef2fc..e57c415a1c78 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
@@ -49,8 +49,10 @@ struct mdp_platform_config {
 	bool	rdma_support_10bit;
 	bool	rdma_rsz1_sram_sharing;
 	bool	rdma_upsample_repeat_only;
+	u32	rdma_event_num;
 	bool	rsz_disable_dcm_small_sample;
 	bool	wrot_filter_constraint;
+	u32	wrot_event_num;
 };
 
 /* indicate which mutex is used by each pipepline */
-- 
2.18.0