diff options
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index 646b3e57b9ad..1906723af389 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -89,6 +89,16 @@ static void store_vblank(struct drm_device *dev, unsigned int pipe, write_sequnlock(&vblank->seqlock); } +/* + * "No hw counter" fallback implementation of .get_vblank_counter() hook, + * if there is no useable hardware frame counter available. + */ +static u32 drm_vblank_no_hw_counter(struct drm_device *dev, unsigned int pipe) +{ + WARN_ON_ONCE(dev->max_vblank_count != 0); + return 0; +} + static u32 __get_vblank_counter(struct drm_device *dev, unsigned int pipe) { if (drm_core_check_feature(dev, DRIVER_MODESET)) { @@ -1748,21 +1758,3 @@ bool drm_crtc_handle_vblank(struct drm_crtc *crtc) return drm_handle_vblank(crtc->dev, drm_crtc_index(crtc)); } EXPORT_SYMBOL(drm_crtc_handle_vblank); - -/** - * drm_vblank_no_hw_counter - "No hw counter" implementation of .get_vblank_counter() - * @dev: DRM device - * @pipe: CRTC for which to read the counter - * - * Drivers can plug this into the .get_vblank_counter() function if - * there is no useable hardware frame counter available. - * - * Returns: - * 0 - */ -u32 drm_vblank_no_hw_counter(struct drm_device *dev, unsigned int pipe) -{ - WARN_ON_ONCE(dev->max_vblank_count != 0); - return 0; -} -EXPORT_SYMBOL(drm_vblank_no_hw_counter); |