diff options
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
| -rw-r--r-- | drivers/gpu/drm/drm_irq.c | 52 |
1 files changed, 35 insertions, 17 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index ed2394e1720b..eba6337f5860 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -213,17 +213,17 @@ static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe, diff = DIV_ROUND_CLOSEST_ULL(diff_ns, framedur_ns); if (diff == 0 && flags & DRM_CALLED_FROM_VBLIRQ) - DRM_DEBUG("crtc %u: Redundant vblirq ignored." - " diff_ns = %lld, framedur_ns = %d)\n", - pipe, (long long) diff_ns, framedur_ns); + DRM_DEBUG_VBL("crtc %u: Redundant vblirq ignored." + " diff_ns = %lld, framedur_ns = %d)\n", + pipe, (long long) diff_ns, framedur_ns); } else { /* some kind of default for drivers w/o accurate vbl timestamping */ diff = (flags & DRM_CALLED_FROM_VBLIRQ) != 0; } - DRM_DEBUG("updating vblank count on crtc %u:" - " current=%u, diff=%u, hw=%u hw_last=%u\n", - pipe, vblank->count, diff, cur_vblank, vblank->last); + DRM_DEBUG_VBL("updating vblank count on crtc %u:" + " current=%u, diff=%u, hw=%u hw_last=%u\n", + pipe, vblank->count, diff, cur_vblank, vblank->last); if (diff == 0) { WARN_ON_ONCE(cur_vblank != vblank->last); @@ -232,10 +232,11 @@ static void drm_update_vblank_count(struct drm_device *dev, unsigned int pipe, /* * Only reinitialize corresponding vblank timestamp if high-precision query - * available and didn't fail. Otherwise reinitialize delayed at next vblank - * interrupt and assign 0 for now, to mark the vblanktimestamp as invalid. + * available and didn't fail, or we were called from the vblank interrupt. + * Otherwise reinitialize delayed at next vblank interrupt and assign 0 + * for now, to mark the vblanktimestamp as invalid. */ - if (!rc) + if (!rc && (flags & DRM_CALLED_FROM_VBLIRQ) == 0) t_vblank = (struct timeval) {0, 0}; store_vblank(dev, pipe, diff, &t_vblank, cur_vblank); @@ -799,11 +800,11 @@ int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, etime = ktime_sub_ns(etime, delta_ns); *vblank_time = ktime_to_timeval(etime); - DRM_DEBUG("crtc %u : v 0x%x p(%d,%d)@ %ld.%ld -> %ld.%ld [e %d us, %d rep]\n", - pipe, vbl_status, hpos, vpos, - (long)tv_etime.tv_sec, (long)tv_etime.tv_usec, - (long)vblank_time->tv_sec, (long)vblank_time->tv_usec, - duration_ns/1000, i); + DRM_DEBUG_VBL("crtc %u : v 0x%x p(%d,%d)@ %ld.%ld -> %ld.%ld [e %d us, %d rep]\n", + pipe, vbl_status, hpos, vpos, + (long)tv_etime.tv_sec, (long)tv_etime.tv_usec, + (long)vblank_time->tv_sec, (long)vblank_time->tv_usec, + duration_ns/1000, i); return ret; } @@ -876,7 +877,7 @@ drm_get_last_vbltimestamp(struct drm_device *dev, unsigned int pipe, * Returns: * The software vblank counter. */ -u32 drm_vblank_count(struct drm_device *dev, int pipe) +u32 drm_vblank_count(struct drm_device *dev, unsigned int pipe) { struct drm_vblank_crtc *vblank = &dev->vblank[pipe]; @@ -1271,8 +1272,8 @@ void drm_vblank_off(struct drm_device *dev, unsigned int pipe) list_for_each_entry_safe(e, t, &dev->vblank_event_list, base.link) { if (e->pipe != pipe) continue; - DRM_DEBUG("Sending premature vblank event on disable: \ - wanted %d, current %d\n", + DRM_DEBUG("Sending premature vblank event on disable: " + "wanted %d, current %d\n", e->event.sequence, seq); list_del(&e->base.link); drm_vblank_put(dev, pipe); @@ -1797,3 +1798,20 @@ 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) +{ + return 0; +} +EXPORT_SYMBOL(drm_vblank_no_hw_counter); |