diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_display.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_display.c | 69 |
1 files changed, 31 insertions, 38 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index c8ffba2..78637af 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -138,7 +138,7 @@ nouveau_user_framebuffer_create(struct drm_device *dev, { struct nouveau_framebuffer *nouveau_fb; struct drm_gem_object *gem; - int ret; + int ret = -ENOMEM; gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]); if (!gem) @@ -146,15 +146,19 @@ nouveau_user_framebuffer_create(struct drm_device *dev, nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL); if (!nouveau_fb) - return ERR_PTR(-ENOMEM); + goto err_unref; ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem)); - if (ret) { - drm_gem_object_unreference(gem); - return ERR_PTR(ret); - } + if (ret) + goto err; return &nouveau_fb->base; + +err: + kfree(nouveau_fb); +err_unref: + drm_gem_object_unreference(gem); + return ERR_PTR(ret); } static const struct drm_mode_config_funcs nouveau_mode_config_funcs = { @@ -524,9 +528,12 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, struct nouveau_page_flip_state *s; struct nouveau_channel *chan = NULL; struct nouveau_fence *fence; - struct list_head res; - struct ttm_validate_buffer res_val[2]; + struct ttm_validate_buffer resv[2] = { + { .bo = &old_bo->bo }, + { .bo = &new_bo->bo }, + }; struct ww_acquire_ctx ticket; + LIST_HEAD(res); int ret; if (!drm->channel) @@ -545,27 +552,19 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, chan = drm->channel; spin_unlock(&old_bo->bo.bdev->fence_lock); - mutex_lock(&chan->cli->mutex); - if (new_bo != old_bo) { ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM); - if (likely(!ret)) { - res_val[0].bo = &old_bo->bo; - res_val[1].bo = &new_bo->bo; - INIT_LIST_HEAD(&res); - list_add_tail(&res_val[0].head, &res); - list_add_tail(&res_val[1].head, &res); - ret = ttm_eu_reserve_buffers(&ticket, &res); - if (ret) - nouveau_bo_unpin(new_bo); - } - } else - ret = ttm_bo_reserve(&new_bo->bo, false, false, false, 0); + if (ret) + goto fail_free; - if (ret) { - mutex_unlock(&chan->cli->mutex); - goto fail_free; + list_add(&resv[1].head, &res); } + list_add(&resv[0].head, &res); + + mutex_lock(&chan->cli->mutex); + ret = ttm_eu_reserve_buffers(&ticket, &res); + if (ret) + goto fail_unpin; /* Initialize a page flip struct */ *s = (struct nouveau_page_flip_state) @@ -576,10 +575,8 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, /* Emit a page flip */ if (nv_device(drm->device)->card_type >= NV_50) { ret = nv50_display_flip_next(crtc, fb, chan, 0); - if (ret) { - mutex_unlock(&chan->cli->mutex); + if (ret) goto fail_unreserve; - } } ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence); @@ -590,22 +587,18 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, /* Update the crtc struct and cleanup */ crtc->fb = fb; - if (old_bo != new_bo) { - ttm_eu_fence_buffer_objects(&ticket, &res, fence); + ttm_eu_fence_buffer_objects(&ticket, &res, fence); + if (old_bo != new_bo) nouveau_bo_unpin(old_bo); - } else { - nouveau_bo_fence(new_bo, fence); - ttm_bo_unreserve(&new_bo->bo); - } nouveau_fence_unref(&fence); return 0; fail_unreserve: - if (old_bo != new_bo) { - ttm_eu_backoff_reservation(&ticket, &res); + ttm_eu_backoff_reservation(&ticket, &res); +fail_unpin: + mutex_unlock(&chan->cli->mutex); + if (old_bo != new_bo) nouveau_bo_unpin(new_bo); - } else - ttm_bo_unreserve(&new_bo->bo); fail_free: kfree(s); return ret; |