[PATCH v2 15/24] drm/msm: dpu: Stop using encoder->crtc pointer

Sean Paul
2018-11-16T18:42:25Z

It's for legacy drivers, for atomic drivers crtc->state->encoder_mask
should be used to map encoder to crtc.

Changes in v2:
- None

Signed-off-by: Sean Paul <seanpaul@chromium.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 46 ++++++++----------------
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 19 +++++++---
2 files changed, 29 insertions(+), 36 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 156f4c77ca44..a008a87a8113 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -284,9 +284,9 @@ enum dpu_intf_mode dpu_crtc_get_intf_mode(struct drm_crtc *crtc)
return INTF_MODE_NONE;
}

- drm_for_each_encoder(encoder, crtc->dev)
- if (encoder->crtc == crtc)
- return dpu_encoder_get_intf_mode(encoder);
+ /* TODO: Returns the first INTF_MODE, could there be multiple values? */
+ drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask)
+ return dpu_encoder_get_intf_mode(encoder);

return INTF_MODE_NONE;
}
@@ -551,13 +551,9 @@ static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
spin_unlock_irqrestore(&dev->event_lock, flags);
}

- list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
- if (encoder->crtc != crtc)
- continue;
-
- /* encoder will trigger pending mask now */
+ /* encoder will trigger pending mask now */
+ drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask)
dpu_encoder_trigger_kickoff_pending(encoder);
- }

/*
* If no mixers have been allocated in dpu_crtc_atomic_check(),
@@ -704,7 +700,6 @@ static int _dpu_crtc_wait_for_frame_done(struct drm_crtc *crtc)
void dpu_crtc_commit_kickoff(struct drm_crtc *crtc)
{
struct drm_encoder *encoder;
- struct drm_device *dev = crtc->dev;
struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc);
struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
@@ -720,16 +715,13 @@ void dpu_crtc_commit_kickoff(struct drm_crtc *crtc)

DPU_ATRACE_BEGIN("crtc_commit");

- list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ /*
+ * Encoder will flush/start now, unless it has a tx pending. If so, it
+ * may delay and flush at an irq event (e.g. ppdone)
+ */
+ drm_for_each_encoder_mask(encoder, crtc->dev,
+ crtc->state->encoder_mask) {
struct dpu_encoder_kickoff_params params = { 0 };
-
- if (encoder->crtc != crtc)
- continue;
-
- /*
- * Encoder will flush/start now, unless it has a tx pending.
- * If so, it may delay and flush at an irq event (e.g. ppdone)
- */
dpu_encoder_prepare_for_kickoff(encoder, &params);
}

@@ -754,12 +746,8 @@ void dpu_crtc_commit_kickoff(struct drm_crtc *crtc)

dpu_vbif_clear_errors(dpu_kms);

- list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
- if (encoder->crtc != crtc)
- continue;
-
+ drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask)
dpu_encoder_kickoff(encoder);
- }

end:
reinit_completion(&dpu_crtc->frame_done_comp);
@@ -883,11 +871,8 @@ static void dpu_crtc_disable(struct drm_crtc *crtc)

dpu_core_perf_crtc_update(crtc, 0, true);

- drm_for_each_encoder(encoder, crtc->dev) {
- if (encoder->crtc != crtc)
- continue;
+ drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask)
dpu_encoder_register_frame_event_callback(encoder, NULL, NULL);
- }

memset(cstate->mixers, 0, sizeof(cstate->mixers));
cstate->num_mixers = 0;
@@ -922,12 +907,9 @@ static void dpu_crtc_enable(struct drm_crtc *crtc,
DRM_DEBUG_KMS("crtc%d\n", crtc->base.id);
dpu_crtc = to_dpu_crtc(crtc);

- drm_for_each_encoder(encoder, crtc->dev) {
- if (encoder->crtc != crtc)
- continue;
+ drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask)
dpu_encoder_register_frame_event_callback(encoder,
dpu_crtc_frame_event_cb, (void *)crtc);
- }

mutex_lock(&dpu_crtc->crtc_lock);
trace_dpu_crtc_enable(DRMID(crtc), true, dpu_crtc);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 1bec4540f3e1..64134d619748 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -320,7 +320,10 @@ static void dpu_kms_prepare_commit(struct msm_kms *kms,
struct dpu_kms *dpu_kms;
struct msm_drm_private *priv;
struct drm_device *dev;
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *crtc_state;
struct drm_encoder *encoder;
+ int i;

if (!kms)
return;
@@ -332,9 +335,13 @@ static void dpu_kms_prepare_commit(struct msm_kms *kms,
priv = dev->dev_private;
pm_runtime_get_sync(&dpu_kms->pdev->dev);

- list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
- if (encoder->crtc != NULL)
+ /* Call prepare_commit for all affected encoders */
+ for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
+ drm_for_each_encoder_mask(encoder, crtc->dev,
+ crtc_state->encoder_mask) {
dpu_encoder_prepare_commit(encoder);
+ }
+ }
}

/*
@@ -344,13 +351,17 @@ static void dpu_kms_prepare_commit(struct msm_kms *kms,
void dpu_kms_encoder_enable(struct drm_encoder *encoder)
{
const struct drm_encoder_helper_funcs *funcs = encoder->helper_private;
- struct drm_crtc *crtc = encoder->crtc;
+ struct drm_device *dev = encoder->dev;
+ struct drm_crtc *crtc;

/* Forward this enable call to the commit hook */
if (funcs && funcs->commit)
funcs->commit(encoder);

- if (crtc && crtc->state->active) {
+ drm_for_each_crtc(crtc, dev) {
+ if (!(crtc->state->encoder_mask & drm_encoder_mask(encoder)))
+ continue;
+
trace_dpu_kms_enc_enable(DRMID(crtc));
dpu_crtc_commit_kickoff(crtc);
}