[RFC PATCH V0 07/10] media: mtk-mdp3: Fix unpaired settings

From: Moudy Ho
Date: Wed Jun 23 2021 - 03:36:16 EST

Fix unpaired settings about:
1. clk on/off.
2. CMDQ packet kzalloc/kfree.
3. MDP job_count increase/decrease.

Also revise the redundant log.

Signed-off-by: Moudy Ho <moudy.ho@xxxxxxxxxxxx>
---
.../media/platform/mtk-mdp3/mtk-mdp3-cmdq.c | 97 ++++++++++++-------
.../media/platform/mtk-mdp3/mtk-mdp3-core.h | 4 +-
.../media/platform/mtk-mdp3/mtk-mdp3-m2m.c | 2 +-
3 files changed, 67 insertions(+), 36 deletions(-)

diff --git a/drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c b/drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c
index a1bdf92d45f7..eac10944283a 100644
--- a/drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c
+++ b/drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c
@@ -5,6 +5,7 @@
*/

#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include "mtk-mdp3-cmdq.h"
#include "mtk-mdp3-comp.h"
#include "mtk-mdp3-core.h"
@@ -230,6 +231,25 @@ static int mdp_path_subfrm_run(const struct mdp_path_subfrm *subfrm,
return 0;
}

+static int mdp_path_ctx_init(struct mdp_dev *mdp, struct mdp_path *path)
+{
+ const struct img_config *config = path->config;
+ int index, ret;
+
+ if (config->num_components < 1)
+ return -EINVAL;
+
+ for (index = 0; index < config->num_components; index++) {
+ ret = mdp_comp_ctx_init(mdp, &path->comps[index],
+ &config->components[index],
+ path->param);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
static int mdp_path_config_subfrm(struct mdp_cmd *cmd, struct mdp_path *path,
u32 count)
{
@@ -297,14 +317,6 @@ static int mdp_path_config(struct mdp_dev *mdp, struct mdp_cmd *cmd,
struct mdp_comp_ctx *ctx;
int index, count, ret;

- for (index = 0; index < config->num_components; index++) {
- ret = mdp_comp_ctx_init(mdp, &path->comps[index],
- &config->components[index],
- path->param);
- if (ret)
- return ret;
- }
-
/* Config path frame */
/* Reset components */
for (index = 0; index < config->num_components; index++) {
@@ -410,6 +422,8 @@ int mdp_cmdq_send(struct mdp_dev *mdp, struct mdp_cmdq_param *param)
{
struct mdp_cmd cmd;
struct mdp_path path;
+ struct mdp_cmdq_cb_param *cb_param = NULL;
+ struct mdp_comp *comps = NULL;
int i, ret;

if (atomic_read(&mdp->suspended))
@@ -438,16 +452,23 @@ int mdp_cmdq_send(struct mdp_dev *mdp, struct mdp_cmdq_param *param)
path.composes[i] = param->composes[i] ?
param->composes[i] : &path.bounds[i];
}
+
+ ret = mdp_path_ctx_init(mdp, &path);
+ if (ret) {
+ pr_info("%s mdp_path_ctx_init error\n", __func__);
+ goto err_destory_pkt;
+ }
+
+ for (i = 0; i < param->config->num_components; i++)
+ mdp_comp_clock_on(&mdp->pdev->dev, path.comps[i].comp);
+
ret = mdp_path_config(mdp, &cmd, &path);
if (ret) {
- atomic_dec(&mdp->job_count);
- wake_up(&mdp->callback_wq);
- return ret;
+ pr_info("%s mdp_path_config error\n", __func__);
+ goto err_destory_pkt;
}

if (param->wait) {
- for (i = 0; i < param->config->num_components; i++)
- mdp_comp_clock_on(&mdp->pdev->dev, path.comps[i].comp);
ret = cmdq_pkt_flush(cmd.pkt);
#ifdef MDP_DEBUG
if (ret) {
@@ -461,25 +482,20 @@ int mdp_cmdq_send(struct mdp_dev *mdp, struct mdp_cmdq_param *param)
if (param->mdp_ctx)
mdp_m2m_job_finish(param->mdp_ctx);
}
- cmdq_pkt_destroy(cmd.pkt);
- for (i = 0; i < param->config->num_components; i++)
- mdp_comp_clock_off(&mdp->pdev->dev, path.comps[i].comp);
-
- atomic_dec(&mdp->job_count);
- wake_up(&mdp->callback_wq);
+ goto err_clock_off;
} else {
- struct mdp_cmdq_cb_param *cb_param;
- struct mdp_comp *comps;
-
cb_param = kzalloc(sizeof(*cb_param), GFP_KERNEL);
- if (!cb_param)
- return -ENOMEM;
+ if (!cb_param) {
+ ret = -ENOMEM;
+ goto err_destory_pkt;
+ }
+
comps = kcalloc(param->config->num_components, sizeof(*comps),
GFP_KERNEL);
if (!comps) {
- kfree(cb_param);
mdp_err("%s:comps alloc fail!\n", __func__);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto err_destory_pkt;
}

for (i = 0; i < param->config->num_components; i++)
@@ -493,20 +509,35 @@ int mdp_cmdq_send(struct mdp_dev *mdp, struct mdp_cmdq_param *param)
cb_param->num_comps = param->config->num_components;
cb_param->mdp_ctx = param->mdp_ctx;

- mdp_comp_clocks_on(&mdp->pdev->dev, cb_param->comps,
- cb_param->num_comps);
-
+ cmdq_pkt_finalize(cmd.pkt);
ret = cmdq_pkt_flush_async(cmd.pkt,
mdp_handle_cmdq_callback,
(void *)cb_param);
if (ret) {
mdp_err("%s:cmdq_pkt_flush_async fail!\n", __func__);
- mdp_comp_clocks_off(&mdp->pdev->dev, cb_param->comps,
- cb_param->num_comps);
- kfree(cb_param);
- kfree(comps);
+ goto err_clock_off;
}
}
+ return 0;
+
+err_clock_off:
+ if (param->wait) {
+ for (i = 0; i < param->config->num_components; i++)
+ mdp_comp_clock_off(&mdp->pdev->dev, path.comps[i].comp);
+ } else {
+ mdp_comp_clocks_off(&mdp->pdev->dev, cb_param->comps,
+ cb_param->num_comps);
+ }
+err_destory_pkt:
+ cmdq_pkt_destroy(cmd.pkt);
+ atomic_dec(&mdp->job_count);
+ if (param->wait)
+ wake_up(&mdp->callback_wq);
+ if (comps)
+ kfree(comps);
+ if (cb_param)
+ kfree(cb_param);
+
return ret;
}

diff --git a/drivers/media/platform/mtk-mdp3/mtk-mdp3-core.h b/drivers/media/platform/mtk-mdp3/mtk-mdp3-core.h
index 98cf54b1d92b..19f46da487aa 100644
--- a/drivers/media/platform/mtk-mdp3/mtk-mdp3-core.h
+++ b/drivers/media/platform/mtk-mdp3/mtk-mdp3-core.h
@@ -64,12 +64,12 @@ extern int mtk_mdp_debug;
#define mdp_dbg(level, fmt, ...)\
do {\
if (mtk_mdp_debug >= (level))\
- pr_info("[MTK-MDP3] %d %s:%d: " fmt "\n",\
+ pr_info("[MTK-MDP3] %d %s:%d: " fmt,\
level, __func__, __LINE__, ##__VA_ARGS__);\
} while (0)

#define mdp_err(fmt, ...)\
- pr_err("[MTK-MDP3][ERR] %s:%d: " fmt "\n", __func__, __LINE__,\
+ pr_err("[MTK-MDP3][ERR] %s:%d: " fmt, __func__, __LINE__,\
##__VA_ARGS__)

#else
diff --git a/drivers/media/platform/mtk-mdp3/mtk-mdp3-m2m.c b/drivers/media/platform/mtk-mdp3/mtk-mdp3-m2m.c
index 1ae499f6c84b..ff80f01be82f 100644
--- a/drivers/media/platform/mtk-mdp3/mtk-mdp3-m2m.c
+++ b/drivers/media/platform/mtk-mdp3/mtk-mdp3-m2m.c
@@ -133,7 +133,7 @@ static void mdp_m2m_worker(struct work_struct *work)
task.config = ctx->vpu.config;
task.param = &param;
task.composes[0] = &frame->compose;
- task.wait = 1;
+ task.wait = 0;
task.cmdq_cb = NULL;
task.cb_data = NULL;
task.mdp_ctx = ctx;
--
2.18.0