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disp: msm: sde: fix vblank handling during trusted UI

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Currently vblank enable/disable events are processed based
on the vm ownership check. Use the vblank helper functions
instead, during the transitions to avoid processing the
vblank from DRM framework level.

Change-Id: Icb2bd569e73d9206a234489a288320fecf631845
Signed-off-by: Veera Sundaram Sankaran <veeras@codeaurora.org>
This commit is contained in:
Veera Sundaram Sankaran
2020-09-29 15:41:53 -07:00
parent 689f5eb836
commit 9d1eee0817
1 changed files with 9 additions and 39 deletions
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48
msm/sde/sde_kms.c
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@@ -205,64 +205,28 @@ static int _sde_kms_dump_clks_state(struct sde_kms *sde_kms)
}
#endif
static bool _sde_kms_skip_vblank_op(struct sde_kms *sde_kms)
{
struct sde_vm_ops *vm_ops = sde_vm_get_ops(sde_kms);
if (vm_ops && vm_ops->vm_owns_hw
&& !vm_ops->vm_owns_hw(sde_kms))
return true;
return false;
}
static int sde_kms_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
{
int ret = 0;
struct sde_kms *sde_kms;
int ret;
if (!kms)
if (!kms || !crtc)
return -EINVAL;
sde_kms = to_sde_kms(kms);
sde_vm_lock(sde_kms);
if (_sde_kms_skip_vblank_op(sde_kms)) {
SDE_DEBUG("skipping vblank enable due to HW unavailablity\n");
goto done;
}
SDE_ATRACE_BEGIN("sde_kms_enable_vblank");
ret = sde_crtc_vblank(crtc, true);
SDE_ATRACE_END("sde_kms_enable_vblank");
done:
sde_vm_unlock(sde_kms);
return ret;
}
static void sde_kms_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc)
{
struct sde_kms *sde_kms;
if (!kms)
if (!kms || !crtc)
return;
sde_kms = to_sde_kms(kms);
sde_vm_lock(sde_kms);
if (_sde_kms_skip_vblank_op(sde_kms)) {
SDE_DEBUG("skipping vblank disable due to HW unavailablity\n");
goto done;
}
SDE_ATRACE_BEGIN("sde_kms_disable_vblank");
sde_crtc_vblank(crtc, false);
SDE_ATRACE_END("sde_kms_disable_vblank");
done:
sde_vm_unlock(sde_kms);
}
static void sde_kms_wait_for_frame_transfer_complete(struct msm_kms *kms,
@@ -1071,6 +1035,9 @@ int sde_kms_vm_primary_prepare_commit(struct sde_kms *sde_kms,
if (drm_connector_mask(connector) & crtc->state->connector_mask)
sde_connector_schedule_status_work(connector, true);
/* enable vblank events */
drm_crtc_vblank_on(crtc);
/* handle non-SDE pre_acquire */
if (vm_ops->vm_client_post_acquire)
rc = vm_ops->vm_client_post_acquire(sde_kms);
@@ -1398,6 +1365,9 @@ int sde_kms_vm_pre_release(struct sde_kms *sde_kms,
/* disable IRQ line */
sde_irq_update(&sde_kms->base, false);
/* disable vblank events */
drm_crtc_vblank_off(crtc);
return rc;
}