[PATCH v1 04/12] media: platform: mtk-mdp3: add support second sets of MUTEX

From: Moudy Ho
Date: Thu Nov 24 2022 - 07:52:52 EST

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After configuring the second set of MMSYS (VPPSYS1), a corresponding
second set of MUTEX (MUTEX2) is required to help handle SOF/EOF

Signed-off-by: Moudy Ho <moudy.ho@xxxxxxxxxxxx>
---
.../platform/mediatek/mdp3/mtk-mdp3-cmdq.c | 64 ++++++++++++-------
.../platform/mediatek/mdp3/mtk-mdp3-core.c | 30 +++++++--
.../platform/mediatek/mdp3/mtk-mdp3-core.h | 2 +
3 files changed, 67 insertions(+), 29 deletions(-)

diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
index 3617c99f8e4c..5472d7183a5e 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-cmdq.c
@@ -43,15 +43,28 @@ static bool is_output_disabled(int id, const struct img_compparam *param, u32 co
return (count < num) ? (dis_output || dis_tile) : true;
}

+static struct mtk_mutex *__get_mutex(const struct mdp_dev *mdp_dev,
+ const struct mdp_pipe_info *p)
+{
+ struct mtk_mutex *m;
+
+ if (p->mmsys_id)
+ m = mdp_dev->mdp_mutex2[p->mutex_id];
+ else
+ m = mdp_dev->mdp_mutex[p->mutex_id];
+
+ return m;
+}
+
static int mdp_path_subfrm_require(const struct mdp_path *path,
struct mdp_cmdq_cmd *cmd,
- s32 *mutex_id, u32 count)
+ struct mdp_pipe_info *p, u32 count)
{
const int plat_id = path->mdp_dev->mdp_data->mdp_plat_id;
const struct mdp_comp_ctx *ctx;
const struct mtk_mdp_driver_data *data = path->mdp_dev->mdp_data;
struct device *dev = &path->mdp_dev->pdev->dev;
- struct mtk_mutex **mutex = path->mdp_dev->mdp_mutex;
+ struct mtk_mutex *mutex;
int id, index;
u32 num_comp = 0;

@@ -76,7 +89,8 @@ static int mdp_path_subfrm_require(const struct mdp_path *path,
dev_err(dev, "Unknown pipeline and no mutex is assigned");
return -EINVAL;
}
- *mutex_id = data->pipe_info[index].mutex_id;
+ memcpy(p, &data->pipe_info[index], sizeof(struct mdp_pipe_info));
+ mutex = __get_mutex(path->mdp_dev, p);

/* Set mutex mod */
for (index = 0; index < num_comp; index++) {
@@ -84,29 +98,28 @@ static int mdp_path_subfrm_require(const struct mdp_path *path,
if (is_output_disabled(plat_id, ctx->param, count))
continue;
id = ctx->comp->public_id;
- mtk_mutex_write_mod(mutex[*mutex_id],
- data->mdp_mutex_table_idx[id], false);
+ mtk_mutex_write_mod(mutex, data->mdp_mutex_table_idx[id], false);
+
}

- mtk_mutex_write_sof(mutex[*mutex_id],
- MUTEX_SOF_IDX_SINGLE_MODE);
+ mtk_mutex_write_sof(mutex, MUTEX_SOF_IDX_SINGLE_MODE);

return 0;
}

static int mdp_path_subfrm_run(const struct mdp_path *path,
struct mdp_cmdq_cmd *cmd,
- s32 *mutex_id, u32 count)
+ struct mdp_pipe_info *p, u32 count)
{
const int id = path->mdp_dev->mdp_data->mdp_plat_id;
const struct mdp_comp_ctx *ctx;
struct device *dev = &path->mdp_dev->pdev->dev;
- struct mtk_mutex **mutex = path->mdp_dev->mdp_mutex;
+ struct mtk_mutex *mutex;
int index;
u32 num_comp = 0;
s32 event;

- if (-1 == *mutex_id) {
+ if (-1 == p->mutex_id) {
dev_err(dev, "Incorrect mutex id");
return -EINVAL;
}
@@ -126,7 +139,8 @@ static int mdp_path_subfrm_run(const struct mdp_path *path,
}

/* Enable the mutex */
- mtk_mutex_enable_by_cmdq(mutex[*mutex_id], (void *)&cmd->pkt);
+ mutex = __get_mutex(path->mdp_dev, p);
+ mtk_mutex_enable_by_cmdq(mutex, (void *)&cmd->pkt);

/* Wait SOF events and clear mutex modules (optional) */
for (index = 0; index < num_comp; index++) {
@@ -173,7 +187,7 @@ static int mdp_path_config_subfrm(struct mdp_cmdq_cmd *cmd,
const struct img_mmsys_ctrl *ctrl = NULL;
const struct img_mux *set;
struct mdp_comp_ctx *ctx;
- s32 mutex_id;
+ struct mdp_pipe_info pipe;
int index, ret;
u32 num_comp = 0;

@@ -184,7 +198,7 @@ static int mdp_path_config_subfrm(struct mdp_cmdq_cmd *cmd,
ctrl = CFG_ADDR(MT8183, path->config, ctrls[count]);

/* Acquire components */
- ret = mdp_path_subfrm_require(path, cmd, &mutex_id, count);
+ ret = mdp_path_subfrm_require(path, cmd, &pipe, count);
if (ret)
return ret;
/* Enable mux settings */
@@ -203,7 +217,7 @@ static int mdp_path_config_subfrm(struct mdp_cmdq_cmd *cmd,
return ret;
}
/* Run components */
- ret = mdp_path_subfrm_run(path, cmd, &mutex_id, count);
+ ret = mdp_path_subfrm_run(path, cmd, &pipe, count);
if (ret)
return ret;
/* Wait components done */
@@ -327,13 +341,13 @@ static void mdp_auto_release_work(struct work_struct *work)
{
struct mdp_cmdq_cmd *cmd;
struct mdp_dev *mdp;
- int id;
+ struct mtk_mutex *mutex;

cmd = container_of(work, struct mdp_cmdq_cmd, auto_release_work);
mdp = cmd->mdp;

- id = mdp->mdp_data->pipe_info[MDP_PIPE_RDMA0].mutex_id;
- mtk_mutex_unprepare(mdp->mdp_mutex[id]);
+ mutex = __get_mutex(mdp, &mdp->mdp_data->pipe_info[MDP_PIPE_RDMA0]);
+ mtk_mutex_unprepare(mutex);
mdp_comp_clocks_off(&mdp->pdev->dev, cmd->comps,
cmd->num_comps);

@@ -353,7 +367,6 @@ static void mdp_handle_cmdq_callback(struct mbox_client *cl, void *mssg)
struct cmdq_cb_data *data;
struct mdp_dev *mdp;
struct device *dev;
- int id;

if (!mssg) {
pr_info("%s:no callback data\n", __func__);
@@ -378,9 +391,11 @@ static void mdp_handle_cmdq_callback(struct mbox_client *cl, void *mssg)

INIT_WORK(&cmd->auto_release_work, mdp_auto_release_work);
if (!queue_work(mdp->clock_wq, &cmd->auto_release_work)) {
+ struct mtk_mutex *mutex;
+
dev_err(dev, "%s:queue_work fail!\n", __func__);
- id = mdp->mdp_data->pipe_info[MDP_PIPE_RDMA0].mutex_id;
- mtk_mutex_unprepare(mdp->mdp_mutex[id]);
+ mutex = __get_mutex(mdp, &mdp->mdp_data->pipe_info[MDP_PIPE_RDMA0]);
+ mtk_mutex_unprepare(mutex);
mdp_comp_clocks_off(&mdp->pdev->dev, cmd->comps,
cmd->num_comps);

@@ -401,6 +416,7 @@ int mdp_cmdq_send(struct mdp_dev *mdp, struct mdp_cmdq_param *param)
struct mdp_cmdq_cmd *cmd = NULL;
struct mdp_comp *comps = NULL;
struct device *dev = &mdp->pdev->dev;
+ struct mtk_mutex *mutex = NULL;
const int id = mdp->mdp_data->mdp_plat_id;
int i, ret;
u32 num_comp = 0;
@@ -437,8 +453,8 @@ int mdp_cmdq_send(struct mdp_dev *mdp, struct mdp_cmdq_param *param)
goto err_free_comps;
}

- i = mdp->mdp_data->pipe_info[MDP_PIPE_RDMA0].mutex_id;
- ret = mtk_mutex_prepare(mdp->mdp_mutex[i]);
+ mutex = __get_mutex(mdp, &mdp->mdp_data->pipe_info[MDP_PIPE_RDMA0]);
+ ret = mtk_mutex_prepare(mutex);
if (ret) {
dev_err(dev, "Fail to enable mutex clk\n");
goto err_free_path;
@@ -503,8 +519,8 @@ int mdp_cmdq_send(struct mdp_dev *mdp, struct mdp_cmdq_param *param)
mdp_comp_clocks_off(&mdp->pdev->dev, cmd->comps,
cmd->num_comps);
err_free_path:
- i = mdp->mdp_data->pipe_info[MDP_PIPE_RDMA0].mutex_id;
- mtk_mutex_unprepare(mdp->mdp_mutex[i]);
+ if (mutex)
+ mtk_mutex_unprepare(mutex);
kfree(path);
err_free_comps:
kfree(comps);
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
index 927d3d65751a..56c42bd3f16b 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.c
@@ -161,8 +161,10 @@ void mdp_video_device_release(struct video_device *vdev)
vb2_dma_contig_clear_max_seg_size(&mdp->pdev->dev);

mdp_comp_destroy(mdp);
- for (i = 0; i < MDP_PIPE_MAX; i++)
+ for (i = 0; i < MDP_PIPE_MAX; i++) {
mtk_mutex_put(mdp->mdp_mutex[i]);
+ mtk_mutex_put(mdp->mdp_mutex2[i]);
+ }

mdp_vpu_shared_mem_free(&mdp->vpu);
v4l2_m2m_release(mdp->m2m_dev);
@@ -205,12 +207,28 @@ static int mdp_probe(struct platform_device *pdev)
ret = -ENODEV;
goto err_destroy_device;
}
+ mm2_pdev = __get_pdev_by_id(pdev, mm_pdev, MDP_INFRA_MUTEX2);
+ /* MUTEX2 must works with MMSYS2 */
+ if ((IS_ERR(mm2_pdev)) ||
+ (mm2_pdev && IS_ERR_OR_NULL(mdp->mdp_mmsys2))) {
+ ret = -ENODEV;
+ goto err_destroy_device;
+ }
for (i = 0; i < mdp->mdp_data->pipe_info_len; i++) {
+ struct platform_device *p;
+ struct mtk_mutex **m;
+ u32 id;
+
mutex_id = mdp->mdp_data->pipe_info[i].mutex_id;
- if (mdp->mdp_mutex[mutex_id])
+ id = mdp->mdp_data->pipe_info[i].mmsys_id;
+ p = (id && mm2_pdev) ? mm2_pdev : mm_pdev;
+ m = (id && mm2_pdev) ?
+ mdp->mdp_mutex2 : mdp->mdp_mutex;
+
+ if (m[mutex_id])
continue;
- mdp->mdp_mutex[mutex_id] = mtk_mutex_get(&mm_pdev->dev);
- if (!mdp->mdp_mutex[mutex_id]) {
+ m[mutex_id] = mtk_mutex_get(&p->dev);
+ if (!m[mutex_id]) {
ret = -ENODEV;
goto err_free_mutex;
}
@@ -291,8 +309,10 @@ static int mdp_probe(struct platform_device *pdev)
err_deinit_comp:
mdp_comp_destroy(mdp);
err_free_mutex:
- for (i = 0; i < mdp->mdp_data->pipe_info_len; i++)
+ for (i = 0; i < mdp->mdp_data->pipe_info_len; i++) {
mtk_mutex_put(mdp->mdp_mutex[i]);
+ mtk_mutex_put(mdp->mdp_mutex2[i]);
+ }
err_destroy_device:
kfree(mdp);
err_return:
diff --git a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
index 50c0bc6c358f..3ffad6be95ad 100644
--- a/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
+++ b/drivers/media/platform/mediatek/mdp3/mtk-mdp3-core.h
@@ -22,6 +22,7 @@ enum mdp_infra_id {
MDP_INFRA_MMSYS,
MDP_INFRA_MMSYS2,
MDP_INFRA_MUTEX,
+ MDP_INFRA_MUTEX2,
MDP_INFRA_SCP,
MDP_INFRA_MAX
};
@@ -71,6 +72,7 @@ struct mdp_dev {
struct device *mdp_mmsys;
struct device *mdp_mmsys2;
struct mtk_mutex *mdp_mutex[MDP_PIPE_MAX];
+ struct mtk_mutex *mdp_mutex2[MDP_PIPE_MAX];
struct mdp_comp *comp[MDP_MAX_COMP_COUNT];
const struct mtk_mdp_driver_data *mdp_data;

--
2.18.0

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