diff options
Diffstat (limited to 'drivers/gpu/drm/gma500/gma_display.c')
| -rw-r--r-- | drivers/gpu/drm/gma500/gma_display.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/gpu/drm/gma500/gma_display.c b/drivers/gpu/drm/gma500/gma_display.c index e20ccb5d10fd..17f136985d21 100644 --- a/drivers/gpu/drm/gma500/gma_display.c +++ b/drivers/gpu/drm/gma500/gma_display.c @@ -255,6 +255,8 @@ void gma_crtc_dpms(struct drm_crtc *crtc, int mode) /* Give the overlay scaler a chance to enable * if it's on this pipe */ /* psb_intel_crtc_dpms_video(crtc, true); TODO */ + + drm_crtc_vblank_on(crtc); break; case DRM_MODE_DPMS_OFF: if (!gma_crtc->active) @@ -501,6 +503,52 @@ void gma_crtc_destroy(struct drm_crtc *crtc) kfree(gma_crtc); } +int gma_crtc_page_flip(struct drm_crtc *crtc, + struct drm_framebuffer *fb, + struct drm_pending_vblank_event *event, + uint32_t page_flip_flags, + struct drm_modeset_acquire_ctx *ctx) +{ + struct gma_crtc *gma_crtc = to_gma_crtc(crtc); + struct drm_framebuffer *current_fb = crtc->primary->fb; + struct drm_framebuffer *old_fb = crtc->primary->old_fb; + const struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; + struct drm_device *dev = crtc->dev; + unsigned long flags; + int ret; + + if (!crtc_funcs->mode_set_base) + return -EINVAL; + + /* Using mode_set_base requires the new fb to be set already. */ + crtc->primary->fb = fb; + + if (event) { + spin_lock_irqsave(&dev->event_lock, flags); + + WARN_ON(drm_crtc_vblank_get(crtc) != 0); + + gma_crtc->page_flip_event = event; + + /* Call this locked if we want an event at vblank interrupt. */ + ret = crtc_funcs->mode_set_base(crtc, crtc->x, crtc->y, old_fb); + if (ret) { + gma_crtc->page_flip_event = NULL; + drm_crtc_vblank_put(crtc); + } + + spin_unlock_irqrestore(&dev->event_lock, flags); + } else { + ret = crtc_funcs->mode_set_base(crtc, crtc->x, crtc->y, old_fb); + } + + /* Restore previous fb in case of failure. */ + if (ret) + crtc->primary->fb = current_fb; + + return ret; +} + int gma_crtc_set_config(struct drm_mode_set *set, struct drm_modeset_acquire_ctx *ctx) { |