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disp: msm: sde: handle another case for lost pp-done interrupt

Sfoglia il codice sorgente 
Due to interrupt delays, sometimes the pp-done interrupt
for an in-between frame is lost, as with posted-start
frames are queued to the hardware before the completion
of the previous frame. Handle the lost pp-done interrupt
in the case where frame-n pp-done interrupt is missed
and frame-n+1 pp-done interrupt is processed before
frame-n+1 wr-ptr interrupt.

Change-Id: I36ec7ac494b2720fc005dab75047d2f4a5a2a699
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
This commit is contained in:
Veera Sundaram Sankaran
2019-10-30 17:36:17 -07:00
parent 46ec8687c0
commit a823531c33
1 ha cambiato i file con 15 aggiunte e 5 eliminazioni
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20
msm/sde/sde_encoder_phys_cmd.c
Vedi File

@@ -1345,10 +1345,11 @@ static int sde_encoder_phys_cmd_prepare_for_kickoff(
}
SDE_DEBUG_CMDENC(cmd_enc, "pp %d\n", phys_enc->hw_pp->idx - PINGPONG_0);
phys_enc->frame_trigger_mode = params->frame_trigger_mode;
SDE_EVT32(DRMID(phys_enc->parent), phys_enc->hw_pp->idx - PINGPONG_0,
atomic_read(&phys_enc->pending_kickoff_cnt),
atomic_read(&cmd_enc->autorefresh.kickoff_cnt));
phys_enc->frame_trigger_mode = params->frame_trigger_mode;
atomic_read(&cmd_enc->autorefresh.kickoff_cnt),
phys_enc->frame_trigger_mode);
if (phys_enc->frame_trigger_mode == FRAME_DONE_WAIT_DEFAULT) {
/*
@@ -1557,6 +1558,8 @@ static int sde_encoder_phys_cmd_wait_for_commit_done(
int rc = 0, i, pending_cnt;
struct sde_encoder_phys_cmd *cmd_enc;
ktime_t profile_timestamp = ktime_get();
u32 scheduler_status = INVALID_CTL_STATUS;
struct sde_hw_ctl *ctl;
if (!phys_enc)
return -EINVAL;
@@ -1582,11 +1585,17 @@ static int sde_encoder_phys_cmd_wait_for_commit_done(
if (cmd_enc->autorefresh.cfg.enable)
rc = _sde_encoder_phys_cmd_wait_for_autorefresh_done(
phys_enc);
ctl = phys_enc->hw_ctl;
if (ctl && ctl->ops.get_scheduler_status)
scheduler_status = ctl->ops.get_scheduler_status(ctl);
}
/* wait for posted start or serialize trigger */
if ((atomic_read(&phys_enc->pending_kickoff_cnt) > 1) ||
(!rc && phys_enc->frame_trigger_mode == FRAME_DONE_WAIT_SERIALIZE))
pending_cnt = atomic_read(&phys_enc->pending_kickoff_cnt);
if ((pending_cnt > 1) ||
(pending_cnt && (scheduler_status & BIT(0))) ||
(!rc && phys_enc->frame_trigger_mode == FRAME_DONE_WAIT_SERIALIZE))
goto wait_for_idle;
return rc;
@@ -1601,7 +1610,8 @@ wait_for_idle:
phys_enc->hw_pp->idx - PINGPONG_0,
phys_enc->frame_trigger_mode,
atomic_read(&phys_enc->pending_kickoff_cnt),
phys_enc->enable_state, rc);
phys_enc->enable_state,
cmd_enc->wr_ptr_wait_success, scheduler_status, rc);
SDE_ERROR("pp:%d failed wait_for_idle: %d\n",
phys_enc->hw_pp->idx - PINGPONG_0, rc);
if (phys_enc->enable_state == SDE_ENC_ERR_NEEDS_HW_RESET)