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disp: msm: sde: add support for hwfence profiling

Bladeren bron 
This change adds hwfence input and output fence profiling
registers and debugfs to enable them.
To enable input hw fences timestamps:
echo 0x1 > /d/dri/0/debug/hw_fence_status
To enable output hw fences timestamps:
echo 0x2 > /d/dri/0/debug/hw_fence_status
To enable both, input and output hw fences timestamps:
echo 0x3 > /d/dri/0/debug/hw_fence_status.

Change-Id: I269a38f3843a01ec8c0816890e50bb7d847a4ed9
Signed-off-by: Christina Oliveira <quic_coliveir@quicinc.com>
This commit is contained in:
Christina Oliveira
2022-05-18 09:38:40 -07:00
bovenliggende d2d060cf80
commit 21ca2acab9
11 gewijzigde bestanden met toevoegingen van 252 en 23 verwijderingen
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10
msm/sde/sde_crtc.c
Bestand weergeven

@@ -3801,22 +3801,23 @@ static bool _sde_crtc_wait_for_fences(struct drm_crtc *crtc)
int num_hw_fences = 0;
struct sde_hw_ctl *hw_ctl;
bool input_hw_fences_enable;
struct sde_kms *sde_kms = _sde_crtc_get_kms(crtc);
int ret;
SDE_DEBUG("\n");
if (!crtc || !crtc->state) {
if (!crtc || !crtc->state || !sde_kms) {
SDE_ERROR("invalid crtc/state %pK\n", crtc);
return false;
}
hw_ctl = _sde_crtc_get_hw_ctl(crtc);
SDE_ATRACE_BEGIN("plane_wait_input_fence");
/* update ctl hw to wait for ipcc input signal before fetch */
if (test_bit(HW_FENCE_IN_FENCES_ENABLE, sde_crtc->hwfence_features_mask) &&
!sde_fence_update_input_hw_fence_signal(hw_ctl))
!sde_fence_update_input_hw_fence_signal(hw_ctl, sde_kms->debugfs_hw_fence,
sde_kms->hw_mdp))
ipcc_input_signal_wait = true;
/* avoid hw-fences in first frame after timing engine enable */
@@ -4626,7 +4627,8 @@ void sde_crtc_commit_kickoff(struct drm_crtc *crtc,
* condition between txq update and the hw signal during ctl-done for partial updates
*/
if (test_bit(HW_FENCE_OUT_FENCES_ENABLE, sde_crtc->hwfence_features_mask) && !is_vid)
sde_fence_update_hw_fences_txq(sde_crtc->output_fence, false, 0);
sde_fence_update_hw_fences_txq(sde_crtc->output_fence, false, 0,
sde_kms->debugfs_hw_fence);
list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
if (encoder->crtc != crtc)