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msm: cvp: For DSP sessions, enhance CVP persist buffer release process

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Do not release CVP persist buffers until all outstanding DSP frames
are handled by firmware.

Change-Id: I14277b17d7c5babb7352934baf51cc749c3b1315
Signed-off-by: Haseeb Khan <hkhan@codeaurora.org>
This commit is contained in:
Haseeb Khan 2020-09-11 20:56:53 +05:30
commit 0fb046108f
1 changed files with 21 additions and 2 deletions
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23
drivers/media/platform/msm/cvp/msm_cvp_core.c
View file

@ -273,8 +273,8 @@ static void msm_cvp_clean_sess_queue(struct msm_cvp_inst *inst,
static void msm_cvp_cleanup_instance(struct msm_cvp_inst *inst)
{
bool empty;
int max_retries;
bool empty, empty_dsp;
int max_retries, max_retries_dsp;
struct msm_cvp_frame *frame;
struct cvp_session_queue *sq, *sqf;
@ -287,8 +287,27 @@ static void msm_cvp_cleanup_instance(struct msm_cvp_inst *inst)
sq = &inst->session_queue;
max_retries = inst->core->resources.msm_cvp_hw_rsp_timeout >> 1;
max_retries_dsp = max_retries;
msm_cvp_session_queue_stop(inst);
wait_dsp:
mutex_lock(&inst->cvpdspbufs.lock);
empty_dsp = list_empty(&inst->cvpdspbufs.list);
if (!empty_dsp && max_retries_dsp > 0) {
mutex_unlock(&inst->cvpdspbufs.lock);
usleep_range(1000, 2000);
max_retries_dsp--;
goto wait_dsp;
}
mutex_unlock(&inst->cvpdspbufs.lock);
dprintk(CVP_DBG, "empty_dsp %d, retry %d\n", (int)empty_dsp,
(inst->core->resources.msm_cvp_hw_rsp_timeout >> 1) - max_retries_dsp);
if (!empty_dsp) {
dprintk(CVP_WARN,
"Failed to process DSP frames before session close\n");
}
wait:
mutex_lock(&inst->frames.lock);
empty = list_empty(&inst->frames.list);