diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/drm_vblank.c | 81 |
1 files changed, 9 insertions, 72 deletions
diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c index cc7ef64d35f2..224785020f17 100644 --- a/drivers/gpu/drm/drm_vblank.c +++ b/drivers/gpu/drm/drm_vblank.c @@ -144,10 +144,9 @@ static u32 __get_vblank_counter(struct drm_device *dev, unsigned int pipe) if (crtc->funcs->get_vblank_counter) return crtc->funcs->get_vblank_counter(crtc); - } - - if (dev->driver->get_vblank_counter) + } else if (dev->driver->get_vblank_counter) { return dev->driver->get_vblank_counter(dev, pipe); + } return drm_vblank_no_hw_counter(dev, pipe); } @@ -340,8 +339,7 @@ u64 drm_crtc_accurate_vblank_count(struct drm_crtc *crtc) unsigned long flags; WARN_ONCE(drm_debug_enabled(DRM_UT_VBL) && - !crtc->funcs->get_vblank_timestamp && - !dev->driver->get_vblank_timestamp, + !crtc->funcs->get_vblank_timestamp, "This function requires support for accurate vblank timestamps."); spin_lock_irqsave(&dev->vblank_time_lock, flags); @@ -363,13 +361,11 @@ static void __disable_vblank(struct drm_device *dev, unsigned int pipe) if (WARN_ON(!crtc)) return; - if (crtc->funcs->disable_vblank) { + if (crtc->funcs->disable_vblank) crtc->funcs->disable_vblank(crtc); - return; - } + } else { + dev->driver->disable_vblank(dev, pipe); } - - dev->driver->disable_vblank(dev, pipe); } /* @@ -594,62 +590,6 @@ void drm_calc_timestamping_constants(struct drm_crtc *crtc, EXPORT_SYMBOL(drm_calc_timestamping_constants); /** - * drm_calc_vbltimestamp_from_scanoutpos - precise vblank timestamp helper - * @dev: DRM device - * @pipe: index of CRTC whose vblank timestamp to retrieve - * @max_error: Desired maximum allowable error in timestamps (nanosecs) - * On return contains true maximum error of timestamp - * @vblank_time: Pointer to time which should receive the timestamp - * @in_vblank_irq: - * True when called from drm_crtc_handle_vblank(). Some drivers - * need to apply some workarounds for gpu-specific vblank irq quirks - * if flag is set. - * - * Implements calculation of exact vblank timestamps from given drm_display_mode - * timings and current video scanout position of a CRTC. This can be directly - * used as the &drm_crtc_funcs.get_vblank_timestamp implementation of a kms - * driver if &drm_crtc_helper_funcs.get_scanout_position or - * &drm_driver.get_scanout_position is implemented. - * - * The current implementation only handles standard video modes. For double scan - * and interlaced modes the driver is supposed to adjust the hardware mode - * (taken from &drm_crtc_state.adjusted mode for atomic modeset drivers) to - * match the scanout position reported. - * - * Note that atomic drivers must call drm_calc_timestamping_constants() before - * enabling a CRTC. The atomic helpers already take care of that in - * drm_atomic_helper_update_legacy_modeset_state(). - * - * Returns: - * - * Returns true on success, and false on failure, i.e. when no accurate - * timestamp could be acquired. - */ -bool drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, - unsigned int pipe, - int *max_error, - ktime_t *vblank_time, - bool in_vblank_irq) -{ - struct drm_crtc *crtc; - - if (!drm_core_check_feature(dev, DRIVER_MODESET)) - return false; - - crtc = drm_crtc_from_index(dev, pipe); - if (!crtc) - return false; - - return drm_crtc_vblank_helper_get_vblank_timestamp_internal(crtc, - max_error, - vblank_time, - in_vblank_irq, - crtc->helper_private->get_scanout_position, - dev->driver->get_scanout_position); -} -EXPORT_SYMBOL(drm_calc_vbltimestamp_from_scanoutpos); - -/** * drm_crtc_vblank_helper_get_vblank_timestamp_internal - precise vblank * timestamp helper * @dev: DRM device @@ -884,9 +824,6 @@ drm_get_last_vbltimestamp(struct drm_device *dev, unsigned int pipe, ret = crtc->funcs->get_vblank_timestamp(crtc, &max_error, tvblank, in_vblank_irq); - } else if (dev->driver->get_vblank_timestamp && max_error > 0) { - ret = dev->driver->get_vblank_timestamp(dev, pipe, &max_error, - tvblank, in_vblank_irq); } /* GPU high precision timestamp query unsupported or failed. @@ -1109,9 +1046,11 @@ static int __enable_vblank(struct drm_device *dev, unsigned int pipe) if (crtc->funcs->enable_vblank) return crtc->funcs->enable_vblank(crtc); + } else if (dev->driver->enable_vblank) { + return dev->driver->enable_vblank(dev, pipe); } - return dev->driver->enable_vblank(dev, pipe); + return -EINVAL; } static int drm_vblank_enable(struct drm_device *dev, unsigned int pipe) @@ -1896,8 +1835,6 @@ static void drm_handle_vblank_events(struct drm_device *dev, unsigned int pipe) if (crtc && crtc->funcs->get_vblank_timestamp) high_prec = true; - else if (dev->driver->get_vblank_timestamp) - high_prec = true; trace_drm_vblank_event(pipe, seq, now, high_prec); } |