diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_display.c | 41 |
1 files changed, 34 insertions, 7 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 5ed617056b9c..13896edcf0b6 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -66,7 +66,8 @@ static void avivo_crtc_load_lut(struct drm_crtc *crtc) (radeon_crtc->lut_b[i] << 0)); } - WREG32(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id); + /* Only change bit 0 of LUT_SEL, other bits are set elsewhere */ + WREG32_P(AVIVO_D1GRPH_LUT_SEL + radeon_crtc->crtc_offset, radeon_crtc->crtc_id, ~1); } static void dce4_crtc_load_lut(struct drm_crtc *crtc) @@ -284,7 +285,6 @@ static void radeon_unpin_work_func(struct work_struct *__work) void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id) { struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; - struct radeon_flip_work *work; unsigned long flags; u32 update_pending; int vpos, hpos; @@ -294,8 +294,11 @@ void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id) return; spin_lock_irqsave(&rdev->ddev->event_lock, flags); - work = radeon_crtc->flip_work; - if (work == NULL) { + if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) { + DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != " + "RADEON_FLIP_SUBMITTED(%d)\n", + radeon_crtc->flip_status, + RADEON_FLIP_SUBMITTED); spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); return; } @@ -343,12 +346,17 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id) spin_lock_irqsave(&rdev->ddev->event_lock, flags); work = radeon_crtc->flip_work; - if (work == NULL) { + if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) { + DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != " + "RADEON_FLIP_SUBMITTED(%d)\n", + radeon_crtc->flip_status, + RADEON_FLIP_SUBMITTED); spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); return; } /* Pageflip completed. Clean up. */ + radeon_crtc->flip_status = RADEON_FLIP_NONE; radeon_crtc->flip_work = NULL; /* wakeup userspace */ @@ -357,8 +365,9 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id) spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); + drm_vblank_put(rdev->ddev, radeon_crtc->crtc_id); radeon_fence_unref(&work->fence); - radeon_irq_kms_pflip_irq_get(rdev, work->crtc_id); + radeon_irq_kms_pflip_irq_put(rdev, work->crtc_id); queue_work(radeon_crtc->flip_queue, &work->unpin_work); } @@ -459,6 +468,12 @@ static void radeon_flip_work_func(struct work_struct *__work) base &= ~7; } + r = drm_vblank_get(crtc->dev, radeon_crtc->crtc_id); + if (r) { + DRM_ERROR("failed to get vblank before flip\n"); + goto pflip_cleanup; + } + /* We borrow the event spin lock for protecting flip_work */ spin_lock_irqsave(&crtc->dev->event_lock, flags); @@ -468,11 +483,22 @@ static void radeon_flip_work_func(struct work_struct *__work) /* do the flip (mmio) */ radeon_page_flip(rdev, radeon_crtc->crtc_id, base); + radeon_crtc->flip_status = RADEON_FLIP_SUBMITTED; spin_unlock_irqrestore(&crtc->dev->event_lock, flags); up_read(&rdev->exclusive_lock); return; +pflip_cleanup: + if (unlikely(radeon_bo_reserve(work->new_rbo, false) != 0)) { + DRM_ERROR("failed to reserve new rbo in error path\n"); + goto cleanup; + } + if (unlikely(radeon_bo_unpin(work->new_rbo) != 0)) { + DRM_ERROR("failed to unpin new rbo in error path\n"); + } + radeon_bo_unreserve(work->new_rbo); + cleanup: drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base); radeon_fence_unref(&work->fence); @@ -526,7 +552,7 @@ static int radeon_crtc_page_flip(struct drm_crtc *crtc, /* We borrow the event spin lock for protecting flip_work */ spin_lock_irqsave(&crtc->dev->event_lock, flags); - if (radeon_crtc->flip_work) { + if (radeon_crtc->flip_status != RADEON_FLIP_NONE) { DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); spin_unlock_irqrestore(&crtc->dev->event_lock, flags); drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base); @@ -534,6 +560,7 @@ static int radeon_crtc_page_flip(struct drm_crtc *crtc, kfree(work); return -EBUSY; } + radeon_crtc->flip_status = RADEON_FLIP_PENDING; radeon_crtc->flip_work = work; /* update crtc fb */ |