samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

video: driver: power collapse for last session close

Browse Source 
power_collpase thread will initiate suspend sequence
if no there is no transaction for 1.5 sec. So even
after all session closed, power collapse thread will
kick in only after 1.5 sec, which can be avoided.

with this change power_collpase sequence will be
initiated right after last session close.

Change-Id: I4da231fa4a3d65bebbd19725db2f11d1478490dd
Signed-off-by: Govindaraj Rajagopal <quic_grajagop@quicinc.com>
This commit is contained in:
Govindaraj Rajagopal
2022-11-01 15:47:48 +05:30
parent 6b0dcb4a4f
commit 9c5b7fe1c5
2 changed files with 56 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
driver/vidc/src/msm_vidc_driver.c
View File

@@ -543,6 +543,43 @@ static u32 msm_vidc_get_buffer_stats_flag(struct msm_vidc_inst *inst)
return flags;
}
static int msm_vidc_suspend_locked(struct msm_vidc_core *core)
{
int rc = 0;
if (!core) {
d_vpr_e("%s: invalid params\n", __func__);
return -EINVAL;
}
rc = venus_hfi_suspend(core);
if (rc)
return rc;
return rc;
}
static int msm_vidc_try_suspend(struct msm_vidc_inst *inst)
{
struct msm_vidc_core *core;
int rc = 0;
if (!inst || !inst->core) {
d_vpr_e("%s: invalid params\n", __func__);
return -EINVAL;
}
core = inst->core;
core_lock(core, __func__);
if (list_empty(&core->instances) && list_empty(&core->dangling_instances)) {
i_vpr_h(inst, "%s: closed last open session. suspend video core\n", __func__);
msm_vidc_suspend_locked(core);
}
core_unlock(core, __func__);
return rc;
}
int msm_vidc_add_buffer_stats(struct msm_vidc_inst *inst,
struct msm_vidc_buffer *buf)
{
@@ -4295,7 +4332,7 @@ static int msm_vidc_remove_dangling_session(struct msm_vidc_inst *inst)
{
struct msm_vidc_inst *i, *temp;
struct msm_vidc_core *core;
u32 count = 0;
u32 count = 0, dcount = 0;
if (!inst || !inst->core) {
d_vpr_e("%s: invalid params\n", __func__);
@@ -4312,9 +4349,12 @@ static int msm_vidc_remove_dangling_session(struct msm_vidc_inst *inst)
break;
}
}
list_for_each_entry(i, &core->dangling_instances, list)
list_for_each_entry(i, &core->instances, list)
count++;
i_vpr_h(inst, "%s: remaining dangling sessions %d\n", __func__, count);
list_for_each_entry(i, &core->dangling_instances, list)
dcount++;
i_vpr_h(inst, "%s: remaining sessions. active %d, dangling %d\n",
__func__, count, dcount);
core_unlock(core, __func__);
return 0;
@@ -5305,10 +5345,14 @@ int msm_vidc_suspend(struct msm_vidc_core *core)
return -EINVAL;
}
rc = venus_hfi_suspend(core);
core_lock(core, __func__);
d_vpr_h("%s: initiate PM suspend\n", __func__);
rc = msm_vidc_suspend_locked(core);
if (rc)
return rc;
goto exit;
exit:
core_unlock(core, __func__);
return rc;
}
@@ -5625,6 +5669,7 @@ static void msm_vidc_close_helper(struct kref *kref)
destroy_workqueue(inst->workq);
msm_vidc_destroy_buffers(inst);
msm_vidc_remove_dangling_session(inst);
msm_vidc_try_suspend(inst);
mutex_destroy(&inst->client_lock);
mutex_destroy(&inst->request_lock);
mutex_destroy(&inst->lock);