diff options
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 121 | ||||
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_drv.c | 27 |
2 files changed, 53 insertions, 95 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index a6ef737..3257228 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -25,15 +25,12 @@ struct tilcdc_crtc { struct drm_crtc base; const struct tilcdc_panel_info *info; - uint32_t dirty; - dma_addr_t start, end; struct drm_pending_vblank_event *event; int dpms; wait_queue_head_t frame_done_wq; bool frame_done; - /* fb currently set to scanout 0/1: */ - struct drm_framebuffer *scanout[2]; + struct drm_framebuffer *curr_fb; /* for deferred fb unref's: */ struct drm_flip_work unref_work; @@ -54,62 +51,31 @@ static void unref_worker(struct drm_flip_work *work, void *val) mutex_unlock(&dev->mode_config.mutex); } -static void set_scanout(struct drm_crtc *crtc, int n) -{ - static const uint32_t base_reg[] = { - LCDC_DMA_FB_BASE_ADDR_0_REG, - LCDC_DMA_FB_BASE_ADDR_1_REG, - }; - static const uint32_t ceil_reg[] = { - LCDC_DMA_FB_CEILING_ADDR_0_REG, - LCDC_DMA_FB_CEILING_ADDR_1_REG, - }; - static const uint32_t stat[] = { - LCDC_END_OF_FRAME0, LCDC_END_OF_FRAME1, - }; - struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); - struct drm_device *dev = crtc->dev; - struct tilcdc_drm_private *priv = dev->dev_private; - - tilcdc_write(dev, base_reg[n], tilcdc_crtc->start); - tilcdc_write(dev, ceil_reg[n], tilcdc_crtc->end); - if (tilcdc_crtc->scanout[n]) { - drm_flip_work_queue(&tilcdc_crtc->unref_work, tilcdc_crtc->scanout[n]); - drm_flip_work_commit(&tilcdc_crtc->unref_work, priv->wq); - } - tilcdc_crtc->scanout[n] = crtc->primary->fb; - drm_framebuffer_reference(tilcdc_crtc->scanout[n]); - tilcdc_crtc->dirty &= ~stat[n]; -} - -static void update_scanout(struct drm_crtc *crtc) +static void set_scanout(struct drm_crtc *crtc, struct drm_framebuffer *fb) { struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); struct drm_device *dev = crtc->dev; - struct drm_framebuffer *fb = crtc->primary->fb; struct drm_gem_cma_object *gem; unsigned int depth, bpp; + dma_addr_t start, end; drm_fb_get_bpp_depth(fb->pixel_format, &depth, &bpp); gem = drm_fb_cma_get_gem_obj(fb, 0); - tilcdc_crtc->start = gem->paddr + fb->offsets[0] + - (crtc->y * fb->pitches[0]) + (crtc->x * bpp/8); + start = gem->paddr + fb->offsets[0] + + crtc->y * fb->pitches[0] + + crtc->x * bpp / 8; - tilcdc_crtc->end = tilcdc_crtc->start + - (crtc->mode.vdisplay * fb->pitches[0]); + end = start + (crtc->mode.vdisplay * fb->pitches[0]); - if (tilcdc_crtc->dpms == DRM_MODE_DPMS_ON) { - /* already enabled, so just mark the frames that need - * updating and they will be updated on vblank: - */ - tilcdc_crtc->dirty |= LCDC_END_OF_FRAME0 | LCDC_END_OF_FRAME1; - drm_vblank_get(dev, 0); - } else { - /* not enabled yet, so update registers immediately: */ - set_scanout(crtc, 0); - set_scanout(crtc, 1); - } + tilcdc_write(dev, LCDC_DMA_FB_BASE_ADDR_0_REG, start); + tilcdc_write(dev, LCDC_DMA_FB_CEILING_ADDR_0_REG, end); + + if (tilcdc_crtc->curr_fb) + drm_flip_work_queue(&tilcdc_crtc->unref_work, + tilcdc_crtc->curr_fb); + + tilcdc_crtc->curr_fb = fb; } static void reset(struct drm_crtc *crtc) @@ -131,7 +97,7 @@ static void start(struct drm_crtc *crtc) reset(crtc); - tilcdc_set(dev, LCDC_DMA_CTRL_REG, LCDC_DUAL_FRAME_BUFFER_ENABLE); + tilcdc_clear(dev, LCDC_DMA_CTRL_REG, LCDC_DUAL_FRAME_BUFFER_ENABLE); tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_PALETTE_LOAD_MODE(DATA_ONLY)); tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ENABLE); } @@ -179,6 +145,7 @@ static int tilcdc_crtc_page_flip(struct drm_crtc *crtc, struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); struct drm_device *dev = crtc->dev; int r; + unsigned long flags; r = tilcdc_verify_fb(crtc, fb); if (r) @@ -189,12 +156,18 @@ static int tilcdc_crtc_page_flip(struct drm_crtc *crtc, return -EBUSY; } + drm_framebuffer_reference(fb); + crtc->primary->fb = fb; - tilcdc_crtc->event = event; pm_runtime_get_sync(dev->dev); - update_scanout(crtc); + + set_scanout(crtc, fb); + + spin_lock_irqsave(&dev->event_lock, flags); + tilcdc_crtc->event = event; + spin_unlock_irqrestore(&dev->event_lock, flags); pm_runtime_put_sync(dev->dev); @@ -237,6 +210,14 @@ void tilcdc_crtc_dpms(struct drm_crtc *crtc, int mode) } pm_runtime_put_sync(dev->dev); + + if (tilcdc_crtc->curr_fb) { + drm_flip_work_queue(&tilcdc_crtc->unref_work, + tilcdc_crtc->curr_fb); + tilcdc_crtc->curr_fb = NULL; + } + + drm_flip_work_commit(&tilcdc_crtc->unref_work, priv->wq); } } @@ -450,8 +431,10 @@ static int tilcdc_crtc_mode_set(struct drm_crtc *crtc, else tilcdc_clear(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ORDER); + drm_framebuffer_reference(crtc->primary->fb); + + set_scanout(crtc, crtc->primary->fb); - update_scanout(crtc); tilcdc_crtc_update_clk(crtc); pm_runtime_put_sync(dev->dev); @@ -469,9 +452,14 @@ static int tilcdc_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, if (r) return r; + drm_framebuffer_reference(crtc->primary->fb); + pm_runtime_get_sync(dev->dev); - update_scanout(crtc); + + set_scanout(crtc, crtc->primary->fb); + pm_runtime_put_sync(dev->dev); + return 0; } @@ -661,30 +649,21 @@ irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc) stat = tilcdc_read_irqstatus(dev); tilcdc_clear_irqstatus(dev, stat); - if ((stat & LCDC_END_OF_FRAME0) || (stat & LCDC_END_OF_FRAME1)) { - struct drm_pending_vblank_event *event; + if (stat & LCDC_END_OF_FRAME0) { unsigned long flags; - uint32_t dirty = tilcdc_crtc->dirty & stat; - - tilcdc_clear_irqstatus(dev, stat); - if (dirty & LCDC_END_OF_FRAME0) - set_scanout(crtc, 0); - - if (dirty & LCDC_END_OF_FRAME1) - set_scanout(crtc, 1); + drm_flip_work_commit(&tilcdc_crtc->unref_work, priv->wq); drm_handle_vblank(dev, 0); spin_lock_irqsave(&dev->event_lock, flags); - event = tilcdc_crtc->event; - tilcdc_crtc->event = NULL; - if (event) - drm_send_vblank_event(dev, 0, event); - spin_unlock_irqrestore(&dev->event_lock, flags); - if (dirty && !tilcdc_crtc->dirty) - drm_vblank_put(dev, 0); + if (tilcdc_crtc->event) { + drm_send_vblank_event(dev, 0, tilcdc_crtc->event); + tilcdc_crtc->event = NULL; + } + + spin_unlock_irqrestore(&dev->event_lock, flags); } if (priv->rev == 2) { diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index e1f6979..c5d9e3a 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -381,6 +381,7 @@ static int tilcdc_irq_postinstall(struct drm_device *dev) else tilcdc_set(dev, LCDC_INT_ENABLE_SET_REG, LCDC_V2_UNDERFLOW_INT_ENA | + LCDC_V2_END_OF_FRAME0_INT_ENA | LCDC_FRAME_DONE); return 0; @@ -398,41 +399,19 @@ static void tilcdc_irq_uninstall(struct drm_device *dev) } else { tilcdc_clear(dev, LCDC_INT_ENABLE_SET_REG, LCDC_V2_UNDERFLOW_INT_ENA | LCDC_V2_PL_INT_ENA | - LCDC_V2_END_OF_FRAME0_INT_ENA | LCDC_V2_END_OF_FRAME1_INT_ENA | + LCDC_V2_END_OF_FRAME0_INT_ENA | LCDC_FRAME_DONE); } - -} - -static void enable_vblank(struct drm_device *dev, bool enable) -{ - struct tilcdc_drm_private *priv = dev->dev_private; - u32 reg, mask; - - if (priv->rev == 1) { - reg = LCDC_DMA_CTRL_REG; - mask = LCDC_V1_END_OF_FRAME_INT_ENA; - } else { - reg = LCDC_INT_ENABLE_SET_REG; - mask = LCDC_V2_END_OF_FRAME0_INT_ENA | - LCDC_V2_END_OF_FRAME1_INT_ENA; - } - - if (enable) - tilcdc_set(dev, reg, mask); - else - tilcdc_clear(dev, reg, mask); } static int tilcdc_enable_vblank(struct drm_device *dev, unsigned int pipe) { - enable_vblank(dev, true); return 0; } static void tilcdc_disable_vblank(struct drm_device *dev, unsigned int pipe) { - enable_vblank(dev, false); + return; } #if defined(CONFIG_DEBUG_FS) || defined(CONFIG_PM_SLEEP) |