diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c index f482e0911d03..a9332078aa13 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c @@ -43,6 +43,9 @@ struct mdp5_crtc { /* for unref'ing cursor bo's after scanout completes: */ struct drm_flip_work unref_cursor_work; + /* for lowering down the bandwidth after previous frame is complete */ + struct drm_flip_work lower_bw_work; + struct mdp_irq vblank; struct mdp_irq err; struct mdp_irq pp_done; @@ -171,12 +174,28 @@ static void unref_cursor_worker(struct drm_flip_work *work, void *val) drm_gem_object_put(val); } +static void lower_bw_worker(struct drm_flip_work *work, void *val) +{ + struct mdp5_crtc *mdp5_crtc = + container_of(work, struct mdp5_crtc, lower_bw_work); + struct drm_crtc *crtc = &mdp5_crtc->base; + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_kms *mdp5_kms = get_kms(&mdp5_crtc->base); + + if (mdp5_cstate->old_crtc_bw > mdp5_cstate->new_crtc_bw) { + DBG("DOWN BW to %lld\n", mdp5_cstate->new_crtc_bw); + mdp5_kms_set_bandwidth(mdp5_kms); + mdp5_cstate->old_crtc_bw = mdp5_cstate->new_crtc_bw; + } +} + static void mdp5_crtc_destroy(struct drm_crtc *crtc) { struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); drm_crtc_cleanup(crtc); drm_flip_work_cleanup(&mdp5_crtc->unref_cursor_work); + drm_flip_work_cleanup(&mdp5_crtc->lower_bw_work); kfree(mdp5_crtc); } @@ -691,6 +710,7 @@ static int mdp5_crtc_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc); struct mdp5_kms *mdp5_kms = get_kms(crtc); + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc_state); struct drm_plane *plane; struct drm_device *dev = crtc->dev; struct plane_state pstates[STAGE_MAX + 1]; @@ -701,6 +721,7 @@ static int mdp5_crtc_atomic_check(struct drm_crtc *crtc, bool need_right_mixer = false; int cnt = 0, i; int ret; + u64 crtc_bw = 0; enum mdp_mixer_stage_id start; DBG("%s: check", crtc->name); @@ -718,6 +739,9 @@ static int mdp5_crtc_atomic_check(struct drm_crtc *crtc, */ if (pstates[cnt].state->r_hwpipe) need_right_mixer = true; + + crtc_bw += pstates[cnt].state->plane_bw; + cnt++; if (plane->type == DRM_PLANE_TYPE_CURSOR) @@ -730,6 +754,10 @@ static int mdp5_crtc_atomic_check(struct drm_crtc *crtc, hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg); + if (hw_cfg->perf.ab_inefficiency) + crtc_bw = mult_frac(crtc_bw, hw_cfg->perf.ab_inefficiency, 100); + mdp5_cstate->new_crtc_bw = crtc_bw; + /* * we need a right hwmixer if the mode's width is greater than a single * LM's max width @@ -785,6 +813,7 @@ static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc, { struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc); struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); + struct mdp5_kms *mdp5_kms = get_kms(crtc); struct drm_device *dev = crtc->dev; unsigned long flags; @@ -808,6 +837,12 @@ static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc, blend_setup(crtc); + if (mdp5_cstate->old_crtc_bw < mdp5_cstate->new_crtc_bw) { + DBG("UP BW to %lld\n", mdp5_cstate->new_crtc_bw); + mdp5_kms_set_bandwidth(mdp5_kms); + mdp5_cstate->old_crtc_bw = mdp5_cstate->new_crtc_bw; + } + /* PP_DONE irq is only used by command mode for now. * It is better to request pending before FLUSH and START trigger * to make sure no pp_done irq missed. @@ -1155,6 +1190,7 @@ static void mdp5_crtc_vblank_irq(struct mdp_irq *irq, uint32_t irqstatus) { struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, vblank); struct drm_crtc *crtc = &mdp5_crtc->base; + struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state); struct msm_drm_private *priv = crtc->dev->dev_private; unsigned pending; @@ -1162,6 +1198,11 @@ static void mdp5_crtc_vblank_irq(struct mdp_irq *irq, uint32_t irqstatus) pending = atomic_xchg(&mdp5_crtc->pending, 0); + if (mdp5_cstate->old_crtc_bw > mdp5_cstate->new_crtc_bw) { + drm_flip_work_queue(&mdp5_crtc->lower_bw_work, NULL); + drm_flip_work_commit(&mdp5_crtc->lower_bw_work, priv->wq); + } + if (pending & PENDING_FLIP) { complete_flip(crtc, NULL); } @@ -1318,6 +1359,9 @@ struct drm_crtc *mdp5_crtc_init(struct drm_device *dev, drm_flip_work_init(&mdp5_crtc->unref_cursor_work, "unref cursor", unref_cursor_worker); + drm_flip_work_init(&mdp5_crtc->lower_bw_work, + "lower bw", lower_bw_worker); + drm_crtc_helper_add(crtc, &mdp5_crtc_helper_funcs); return crtc; |