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disp: msm: sde: fix frame event signal for cwb

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Submit a cwb frame event signal to notify the crtc that cwb
is completed. Currently cwb also uses the same frame done
event as primary. When a single cwb commit is completed, because
cwb is on a slower path there is a race condition in which the
subsequent frame done event for primary clears the refcount.
This fix isolates the events and removes this situation.

Change-Id: Ic3e18302eb8a497cbd7a00f271de2ab320576c83
Signed-off-by: Nilaan Gunabalachandran <ngunabal@codeaurora.org>
This commit is contained in:
Nilaan Gunabalachandran
2019-12-13 08:15:03 -05:00
committed by Gerrit - the friendly Code Review server
parent b3cb4343b1
commit 868fb9cb24
3 changed files with 9 additions and 3 deletions
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3
msm/sde/sde_crtc.c
View File

@@ -2337,7 +2337,8 @@ static void sde_crtc_frame_event_work(struct kthread_work *work)
SDE_EVT32_VERBOSE(DRMID(crtc), fevent->event, SDE_EVTLOG_FUNC_ENTRY);
in_clone_mode = sde_encoder_in_clone_mode(fevent->connector->encoder);
in_clone_mode = (fevent->event & SDE_ENCODER_FRAME_EVENT_CWB_DONE) ?
true : false;
if (!in_clone_mode && (fevent->event & (SDE_ENCODER_FRAME_EVENT_ERROR
| SDE_ENCODER_FRAME_EVENT_PANEL_DEAD

1
msm/sde/sde_encoder.h
View File

@@ -45,6 +45,7 @@
#define SDE_ENCODER_FRAME_EVENT_PANEL_DEAD BIT(2)
#define SDE_ENCODER_FRAME_EVENT_SIGNAL_RELEASE_FENCE BIT(3)
#define SDE_ENCODER_FRAME_EVENT_SIGNAL_RETIRE_FENCE BIT(4)
#define SDE_ENCODER_FRAME_EVENT_CWB_DONE BIT(5)
#define IDLE_POWERCOLLAPSE_DURATION (66 - 16/2)
#define IDLE_POWERCOLLAPSE_IN_EARLY_WAKEUP (200 - 16/2)

8
msm/sde/sde_encoder_phys_wb.c
View File

@@ -1032,7 +1032,9 @@ static void _sde_encoder_phys_wb_frame_done_helper(void *arg, bool frame_error)
event |= SDE_ENCODER_FRAME_EVENT_DONE |
SDE_ENCODER_FRAME_EVENT_SIGNAL_RETIRE_FENCE;
if (!phys_enc->in_clone_mode)
if (phys_enc->in_clone_mode)
event |= SDE_ENCODER_FRAME_EVENT_CWB_DONE;
else
event |= SDE_ENCODER_FRAME_EVENT_SIGNAL_RELEASE_FENCE;
phys_enc->parent_ops.handle_frame_done(phys_enc->parent,
@@ -1187,7 +1189,9 @@ static int sde_encoder_phys_wb_frame_timeout(struct sde_encoder_phys *phys_enc)
event = SDE_ENCODER_FRAME_EVENT_SIGNAL_RETIRE_FENCE
| SDE_ENCODER_FRAME_EVENT_ERROR;
if (!phys_enc->in_clone_mode)
if (phys_enc->in_clone_mode)
event |= SDE_ENCODER_FRAME_EVENT_CWB_DONE;
else
event |= SDE_ENCODER_FRAME_EVENT_SIGNAL_RELEASE_FENCE;
phys_enc->parent_ops.handle_frame_done(