diff options
Diffstat (limited to 'drivers/gpu/drm/tilcdc/tilcdc_crtc.c')
-rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 43 |
1 files changed, 20 insertions, 23 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index 7418dcd..d36efc1 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -15,7 +15,7 @@ * this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/kfifo.h> +#include "drm_flip_work.h" #include "tilcdc_drv.h" #include "tilcdc_regs.h" @@ -35,21 +35,18 @@ struct tilcdc_crtc { struct drm_framebuffer *scanout[2]; /* for deferred fb unref's: */ - DECLARE_KFIFO_PTR(unref_fifo, struct drm_framebuffer *); - struct work_struct work; + struct drm_flip_work unref_work; }; #define to_tilcdc_crtc(x) container_of(x, struct tilcdc_crtc, base) -static void unref_worker(struct work_struct *work) +static void unref_worker(struct drm_flip_work *work, void *val) { struct tilcdc_crtc *tilcdc_crtc = - container_of(work, struct tilcdc_crtc, work); + container_of(work, struct tilcdc_crtc, unref_work); struct drm_device *dev = tilcdc_crtc->base.dev; - struct drm_framebuffer *fb; mutex_lock(&dev->mode_config.mutex); - while (kfifo_get(&tilcdc_crtc->unref_fifo, &fb)) - drm_framebuffer_unreference(fb); + drm_framebuffer_unreference(val); mutex_unlock(&dev->mode_config.mutex); } @@ -68,19 +65,14 @@ static void set_scanout(struct drm_crtc *crtc, int n) }; struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); struct drm_device *dev = crtc->dev; + struct tilcdc_drm_private *priv = dev->dev_private; pm_runtime_get_sync(dev->dev); tilcdc_write(dev, base_reg[n], tilcdc_crtc->start); tilcdc_write(dev, ceil_reg[n], tilcdc_crtc->end); if (tilcdc_crtc->scanout[n]) { - if (kfifo_put(&tilcdc_crtc->unref_fifo, - (const struct drm_framebuffer **)&tilcdc_crtc->scanout[n])) { - struct tilcdc_drm_private *priv = dev->dev_private; - queue_work(priv->wq, &tilcdc_crtc->work); - } else { - dev_err(dev->dev, "unref fifo full!\n"); - drm_framebuffer_unreference(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->fb; drm_framebuffer_reference(tilcdc_crtc->scanout[n]); @@ -149,14 +141,15 @@ static void tilcdc_crtc_destroy(struct drm_crtc *crtc) WARN_ON(tilcdc_crtc->dpms == DRM_MODE_DPMS_ON); drm_crtc_cleanup(crtc); - WARN_ON(!kfifo_is_empty(&tilcdc_crtc->unref_fifo)); - kfifo_free(&tilcdc_crtc->unref_fifo); + drm_flip_work_cleanup(&tilcdc_crtc->unref_work); + kfree(tilcdc_crtc); } static int tilcdc_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, - struct drm_pending_vblank_event *event) + struct drm_pending_vblank_event *event, + uint32_t page_flip_flags) { struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); struct drm_device *dev = crtc->dev; @@ -379,7 +372,12 @@ static int tilcdc_crtc_mode_set(struct drm_crtc *crtc, else tilcdc_clear(dev, LCDC_RASTER_TIMING_2_REG, LCDC_SYNC_EDGE); - if (mode->flags & DRM_MODE_FLAG_NHSYNC) + /* + * use value from adjusted_mode here as this might have been + * changed as part of the fixup for slave encoders to solve the + * issue where tilcdc timings are not VESA compliant + */ + if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) tilcdc_set(dev, LCDC_RASTER_TIMING_2_REG, LCDC_INVERT_HSYNC); else tilcdc_clear(dev, LCDC_RASTER_TIMING_2_REG, LCDC_INVERT_HSYNC); @@ -666,14 +664,13 @@ struct drm_crtc *tilcdc_crtc_create(struct drm_device *dev) tilcdc_crtc->dpms = DRM_MODE_DPMS_OFF; init_waitqueue_head(&tilcdc_crtc->frame_done_wq); - ret = kfifo_alloc(&tilcdc_crtc->unref_fifo, 16, GFP_KERNEL); + ret = drm_flip_work_init(&tilcdc_crtc->unref_work, 16, + "unref", unref_worker); if (ret) { dev_err(dev->dev, "could not allocate unref FIFO\n"); goto fail; } - INIT_WORK(&tilcdc_crtc->work, unref_worker); - ret = drm_crtc_init(dev, crtc, &tilcdc_crtc_funcs); if (ret < 0) goto fail; |