diff options
Diffstat (limited to 'drivers/gpu/drm/msm/mdp4/mdp4_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/msm/mdp4/mdp4_crtc.c | 208 |
1 files changed, 138 insertions, 70 deletions
diff --git a/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c index de6bea2..019d530 100644 --- a/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c +++ b/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c @@ -26,6 +26,7 @@ struct mdp4_crtc { struct drm_crtc base; char name[8]; struct drm_plane *plane; + struct drm_plane *planes[8]; int id; int ovlp; enum mdp4_dma dma; @@ -50,7 +51,11 @@ struct mdp4_crtc { /* if there is a pending flip, these will be non-null: */ struct drm_pending_vblank_event *event; - struct work_struct pageflip_work; + struct msm_fence_cb pageflip_cb; + +#define PENDING_CURSOR 0x1 +#define PENDING_FLIP 0x2 + atomic_t pending; /* the fb that we currently hold a scanout ref to: */ struct drm_framebuffer *fb; @@ -92,7 +97,8 @@ static void update_fb(struct drm_crtc *crtc, bool async, } } -static void complete_flip(struct drm_crtc *crtc, bool canceled) +/* if file!=NULL, this is preclose potential cancel-flip path */ +static void complete_flip(struct drm_crtc *crtc, struct drm_file *file) { struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); struct drm_device *dev = crtc->dev; @@ -102,11 +108,14 @@ static void complete_flip(struct drm_crtc *crtc, bool canceled) spin_lock_irqsave(&dev->event_lock, flags); event = mdp4_crtc->event; if (event) { - mdp4_crtc->event = NULL; - if (canceled) - event->base.destroy(&event->base); - else + /* if regular vblank case (!file) or if cancel-flip from + * preclose on file that requested flip, then send the + * event: + */ + if (!file || (event->base.file_priv == file)) { + mdp4_crtc->event = NULL; drm_send_vblank_event(dev, mdp4_crtc->id, event); + } } spin_unlock_irqrestore(&dev->event_lock, flags); } @@ -115,9 +124,15 @@ static void crtc_flush(struct drm_crtc *crtc) { struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); struct mdp4_kms *mdp4_kms = get_kms(crtc); - uint32_t flush = 0; + uint32_t i, flush = 0; - flush |= pipe2flush(mdp4_plane_pipe(mdp4_crtc->plane)); + for (i = 0; i < ARRAY_SIZE(mdp4_crtc->planes); i++) { + struct drm_plane *plane = mdp4_crtc->planes[i]; + if (plane) { + enum mdp4_pipe pipe_id = mdp4_plane_pipe(plane); + flush |= pipe2flush(pipe_id); + } + } flush |= ovlp2flush(mdp4_crtc->ovlp); DBG("%s: flush=%08x", mdp4_crtc->name, flush); @@ -125,17 +140,29 @@ static void crtc_flush(struct drm_crtc *crtc) mdp4_write(mdp4_kms, REG_MDP4_OVERLAY_FLUSH, flush); } -static void pageflip_worker(struct work_struct *work) +static void request_pending(struct drm_crtc *crtc, uint32_t pending) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + + atomic_or(pending, &mdp4_crtc->pending); + mdp4_irq_register(get_kms(crtc), &mdp4_crtc->vblank); +} + +static void pageflip_cb(struct msm_fence_cb *cb) { struct mdp4_crtc *mdp4_crtc = - container_of(work, struct mdp4_crtc, pageflip_work); + container_of(cb, struct mdp4_crtc, pageflip_cb); struct drm_crtc *crtc = &mdp4_crtc->base; + struct drm_framebuffer *fb = crtc->fb; - mdp4_plane_set_scanout(mdp4_crtc->plane, crtc->fb); + if (!fb) + return; + + mdp4_plane_set_scanout(mdp4_crtc->plane, fb); crtc_flush(crtc); /* enable vblank to complete flip: */ - mdp4_irq_register(get_kms(crtc), &mdp4_crtc->vblank); + request_pending(crtc, PENDING_FLIP); } static void unref_fb_worker(struct drm_flip_work *work, void *val) @@ -205,67 +232,69 @@ static void blend_setup(struct drm_crtc *crtc) struct mdp4_kms *mdp4_kms = get_kms(crtc); int i, ovlp = mdp4_crtc->ovlp; uint32_t mixer_cfg = 0; - - /* - * This probably would also need to be triggered by any attached - * plane when it changes.. for now since we are only using a single - * private plane, the configuration is hard-coded: - */ + static const enum mdp4_mixer_stage_id stages[] = { + STAGE_BASE, STAGE0, STAGE1, STAGE2, STAGE3, + }; + /* statically (for now) map planes to mixer stage (z-order): */ + static const int idxs[] = { + [VG1] = 1, + [VG2] = 2, + [RGB1] = 0, + [RGB2] = 0, + [RGB3] = 0, + [VG3] = 3, + [VG4] = 4, + + }; + bool alpha[4]= { false, false, false, false }; mdp4_write(mdp4_kms, REG_MDP4_OVLP_TRANSP_LOW0(ovlp), 0); mdp4_write(mdp4_kms, REG_MDP4_OVLP_TRANSP_LOW1(ovlp), 0); mdp4_write(mdp4_kms, REG_MDP4_OVLP_TRANSP_HIGH0(ovlp), 0); mdp4_write(mdp4_kms, REG_MDP4_OVLP_TRANSP_HIGH1(ovlp), 0); + /* TODO single register for all CRTCs, so this won't work properly + * when multiple CRTCs are active.. + */ + for (i = 0; i < ARRAY_SIZE(mdp4_crtc->planes); i++) { + struct drm_plane *plane = mdp4_crtc->planes[i]; + if (plane) { + enum mdp4_pipe pipe_id = mdp4_plane_pipe(plane); + int idx = idxs[pipe_id]; + if (idx > 0) { + const struct mdp4_format *format = + to_mdp4_format(msm_framebuffer_format(plane->fb)); + alpha[idx-1] = format->alpha_enable; + } + mixer_cfg |= mixercfg(mdp4_crtc->mixer, pipe_id, stages[idx]); + } + } + + /* this shouldn't happen.. and seems to cause underflow: */ + WARN_ON(!mixer_cfg); + for (i = 0; i < 4; i++) { - mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_FG_ALPHA(ovlp, i), 0); - mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_BG_ALPHA(ovlp, i), 0); - mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_OP(ovlp, i), - MDP4_OVLP_STAGE_OP_FG_ALPHA(FG_CONST) | - MDP4_OVLP_STAGE_OP_BG_ALPHA(BG_CONST)); - mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_CO3(ovlp, i), 0); + uint32_t op; + + if (alpha[i]) { + op = MDP4_OVLP_STAGE_OP_FG_ALPHA(FG_PIXEL) | + MDP4_OVLP_STAGE_OP_BG_ALPHA(FG_PIXEL) | + MDP4_OVLP_STAGE_OP_BG_INV_ALPHA; + } else { + op = MDP4_OVLP_STAGE_OP_FG_ALPHA(FG_CONST) | + MDP4_OVLP_STAGE_OP_BG_ALPHA(BG_CONST); + } + + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_FG_ALPHA(ovlp, i), 0xff); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_BG_ALPHA(ovlp, i), 0x00); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_OP(ovlp, i), op); + mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_CO3(ovlp, i), 1); mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_TRANSP_LOW0(ovlp, i), 0); mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_TRANSP_LOW1(ovlp, i), 0); mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_TRANSP_HIGH0(ovlp, i), 0); mdp4_write(mdp4_kms, REG_MDP4_OVLP_STAGE_TRANSP_HIGH1(ovlp, i), 0); } - /* TODO single register for all CRTCs, so this won't work properly - * when multiple CRTCs are active.. - */ - switch (mdp4_plane_pipe(mdp4_crtc->plane)) { - case VG1: - mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE0(STAGE_BASE) | - COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE0_MIXER1); - break; - case VG2: - mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE1(STAGE_BASE) | - COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE1_MIXER1); - break; - case RGB1: - mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE2(STAGE_BASE) | - COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE2_MIXER1); - break; - case RGB2: - mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE3(STAGE_BASE) | - COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE3_MIXER1); - break; - case RGB3: - mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE4(STAGE_BASE) | - COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE4_MIXER1); - break; - case VG3: - mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE5(STAGE_BASE) | - COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE5_MIXER1); - break; - case VG4: - mixer_cfg = MDP4_LAYERMIXER_IN_CFG_PIPE6(STAGE_BASE) | - COND(mdp4_crtc->mixer == 1, MDP4_LAYERMIXER_IN_CFG_PIPE6_MIXER1); - break; - default: - WARN_ON("invalid pipe"); - break; - } mdp4_write(mdp4_kms, REG_MDP4_LAYERMIXER_IN_CFG, mixer_cfg); } @@ -377,6 +406,7 @@ static int mdp4_crtc_page_flip(struct drm_crtc *crtc, struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); struct drm_device *dev = crtc->dev; struct drm_gem_object *obj; + unsigned long flags; if (mdp4_crtc->event) { dev_err(dev->dev, "already pending flip!\n"); @@ -385,11 +415,13 @@ static int mdp4_crtc_page_flip(struct drm_crtc *crtc, obj = msm_framebuffer_bo(new_fb, 0); + spin_lock_irqsave(&dev->event_lock, flags); mdp4_crtc->event = event; + spin_unlock_irqrestore(&dev->event_lock, flags); + update_fb(crtc, true, new_fb); - return msm_gem_queue_inactive_work(obj, - &mdp4_crtc->pageflip_work); + return msm_gem_queue_inactive_cb(obj, &mdp4_crtc->pageflip_cb); } static int mdp4_crtc_set_property(struct drm_crtc *crtc, @@ -498,6 +530,8 @@ static int mdp4_crtc_cursor_set(struct drm_crtc *crtc, drm_gem_object_unreference_unlocked(old_bo); } + request_pending(crtc, PENDING_CURSOR); + return 0; fail: @@ -542,13 +576,21 @@ static void mdp4_crtc_vblank_irq(struct mdp4_irq *irq, uint32_t irqstatus) struct mdp4_crtc *mdp4_crtc = container_of(irq, struct mdp4_crtc, vblank); struct drm_crtc *crtc = &mdp4_crtc->base; struct msm_drm_private *priv = crtc->dev->dev_private; + unsigned pending; - update_cursor(crtc); - complete_flip(crtc, false); mdp4_irq_unregister(get_kms(crtc), &mdp4_crtc->vblank); - drm_flip_work_commit(&mdp4_crtc->unref_fb_work, priv->wq); - drm_flip_work_commit(&mdp4_crtc->unref_cursor_work, priv->wq); + pending = atomic_xchg(&mdp4_crtc->pending, 0); + + if (pending & PENDING_FLIP) { + complete_flip(crtc, NULL); + drm_flip_work_commit(&mdp4_crtc->unref_fb_work, priv->wq); + } + + if (pending & PENDING_CURSOR) { + update_cursor(crtc); + drm_flip_work_commit(&mdp4_crtc->unref_cursor_work, priv->wq); + } } static void mdp4_crtc_err_irq(struct mdp4_irq *irq, uint32_t irqstatus) @@ -565,9 +607,10 @@ uint32_t mdp4_crtc_vblank(struct drm_crtc *crtc) return mdp4_crtc->vblank.irqmask; } -void mdp4_crtc_cancel_pending_flip(struct drm_crtc *crtc) +void mdp4_crtc_cancel_pending_flip(struct drm_crtc *crtc, struct drm_file *file) { - complete_flip(crtc, true); + DBG("cancel: %p", file); + complete_flip(crtc, file); } /* set dma config, ie. the format the encoder wants. */ @@ -622,6 +665,32 @@ void mdp4_crtc_set_intf(struct drm_crtc *crtc, enum mdp4_intf intf) mdp4_write(mdp4_kms, REG_MDP4_DISP_INTF_SEL, intf_sel); } +static void set_attach(struct drm_crtc *crtc, enum mdp4_pipe pipe_id, + struct drm_plane *plane) +{ + struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc); + + BUG_ON(pipe_id >= ARRAY_SIZE(mdp4_crtc->planes)); + + if (mdp4_crtc->planes[pipe_id] == plane) + return; + + mdp4_crtc->planes[pipe_id] = plane; + blend_setup(crtc); + if (mdp4_crtc->enabled && (plane != mdp4_crtc->plane)) + crtc_flush(crtc); +} + +void mdp4_crtc_attach(struct drm_crtc *crtc, struct drm_plane *plane) +{ + set_attach(crtc, mdp4_plane_pipe(plane), plane); +} + +void mdp4_crtc_detach(struct drm_crtc *crtc, struct drm_plane *plane) +{ + set_attach(crtc, mdp4_plane_pipe(plane), NULL); +} + static const char *dma_names[] = { "DMA_P", "DMA_S", "DMA_E", }; @@ -644,7 +713,6 @@ struct drm_crtc *mdp4_crtc_init(struct drm_device *dev, crtc = &mdp4_crtc->base; mdp4_crtc->plane = plane; - mdp4_crtc->plane->crtc = crtc; mdp4_crtc->ovlp = ovlp_id; mdp4_crtc->dma = dma_id; @@ -668,7 +736,7 @@ struct drm_crtc *mdp4_crtc_init(struct drm_device *dev, ret = drm_flip_work_init(&mdp4_crtc->unref_cursor_work, 64, "unref cursor", unref_cursor_worker); - INIT_WORK(&mdp4_crtc->pageflip_work, pageflip_worker); + INIT_FENCE_CB(&mdp4_crtc->pageflip_cb, pageflip_cb); drm_crtc_init(dev, crtc, &mdp4_crtc_funcs); drm_crtc_helper_add(crtc, &mdp4_crtc_helper_funcs); |