diff options
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 66 |
3 files changed, 39 insertions, 37 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index b9c078860a7c..9fd8b4e75a8c 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -665,7 +665,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) mutex_init(&dev_priv->cmdbuf_mutex); mutex_init(&dev_priv->release_mutex); mutex_init(&dev_priv->binding_mutex); - mutex_init(&dev_priv->requested_layout_mutex); mutex_init(&dev_priv->global_kms_state_mutex); ttm_lock_init(&dev_priv->reservation_sem); spin_lock_init(&dev_priv->resource_lock); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 5fbe47a52609..d7f6cb9331de 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -466,15 +466,6 @@ struct vmw_private { uint32_t num_displays; /* - * Currently requested_layout_mutex is used to protect the gui - * positionig state in display unit. With that use case currently this - * mutex is only taken during layout ioctl and atomic check_modeset. - * Other display unit state can be protected with this mutex but that - * needs careful consideration. - */ - struct mutex requested_layout_mutex; - - /* * Framebuffer info. */ diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 43ee7ccca418..b351fb5214d3 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -1599,7 +1599,6 @@ static int vmw_kms_check_implicit(struct drm_device *dev, static int vmw_kms_check_topology(struct drm_device *dev, struct drm_atomic_state *state) { - struct vmw_private *dev_priv = vmw_priv(dev); struct drm_crtc_state *old_crtc_state, *new_crtc_state; struct drm_rect *rects; struct drm_crtc *crtc; @@ -1611,19 +1610,31 @@ static int vmw_kms_check_topology(struct drm_device *dev, if (!rects) return -ENOMEM; - mutex_lock(&dev_priv->requested_layout_mutex); - drm_for_each_crtc(crtc, dev) { struct vmw_display_unit *du = vmw_crtc_to_du(crtc); - struct drm_crtc_state *crtc_state = crtc->state; + struct drm_crtc_state *crtc_state; i = drm_crtc_index(crtc); - if (crtc_state && crtc_state->enable) { + crtc_state = vmw_crtc_state_and_lock(state, crtc); + if (IS_ERR(crtc_state)) { + ret = PTR_ERR(crtc_state); + goto clean; + } + + if (!crtc_state) + continue; + + if (crtc_state->enable) { rects[i].x1 = du->gui_x; rects[i].y1 = du->gui_y; rects[i].x2 = du->gui_x + crtc_state->mode.hdisplay; rects[i].y2 = du->gui_y + crtc_state->mode.vdisplay; + } else { + rects[i].x1 = 0; + rects[i].y1 = 0; + rects[i].x2 = 0; + rects[i].y2 = 0; } } @@ -1635,14 +1646,6 @@ static int vmw_kms_check_topology(struct drm_device *dev, struct drm_connector_state *conn_state; struct vmw_connector_state *vmw_conn_state; - if (!new_crtc_state->enable) { - rects[i].x1 = 0; - rects[i].y1 = 0; - rects[i].x2 = 0; - rects[i].y2 = 0; - continue; - } - if (!du->pref_active) { ret = -EINVAL; goto clean; @@ -1663,18 +1666,12 @@ static int vmw_kms_check_topology(struct drm_device *dev, vmw_conn_state = vmw_connector_state_to_vcs(conn_state); vmw_conn_state->gui_x = du->gui_x; vmw_conn_state->gui_y = du->gui_y; - - rects[i].x1 = du->gui_x; - rects[i].y1 = du->gui_y; - rects[i].x2 = du->gui_x + new_crtc_state->mode.hdisplay; - rects[i].y2 = du->gui_y + new_crtc_state->mode.vdisplay; } ret = vmw_kms_check_display_memory(dev, dev->mode_config.num_crtc, rects); clean: - mutex_unlock(&dev_priv->requested_layout_mutex); kfree(rects); return ret; } @@ -2031,11 +2028,25 @@ static int vmw_du_update_layout(struct vmw_private *dev_priv, struct vmw_display_unit *du; struct drm_connector *con; struct drm_connector_list_iter conn_iter; + struct drm_modeset_acquire_ctx ctx; + struct drm_crtc *crtc; + int ret; + + /* Currently gui_x/y is protected with the crtc mutex */ + mutex_lock(&dev->mode_config.mutex); + drm_modeset_acquire_init(&ctx, 0); +retry: + drm_for_each_crtc(crtc, dev) { + ret = drm_modeset_lock(&crtc->mutex, &ctx); + if (ret < 0) { + if (ret == -EDEADLK) { + drm_modeset_backoff(&ctx); + goto retry; + } + goto out_fini; + } + } - /* - * Currently only gui_x/y is protected with requested_layout_mutex. - */ - mutex_lock(&dev_priv->requested_layout_mutex); drm_connector_list_iter_begin(dev, &conn_iter); drm_for_each_connector_iter(con, &conn_iter) { du = vmw_connector_to_du(con); @@ -2054,9 +2065,7 @@ static int vmw_du_update_layout(struct vmw_private *dev_priv, } } drm_connector_list_iter_end(&conn_iter); - mutex_unlock(&dev_priv->requested_layout_mutex); - mutex_lock(&dev->mode_config.mutex); list_for_each_entry(con, &dev->mode_config.connector_list, head) { du = vmw_connector_to_du(con); if (num_rects > du->unit) { @@ -2076,10 +2085,13 @@ static int vmw_du_update_layout(struct vmw_private *dev_priv, } con->status = vmw_du_connector_detect(con, true); } - mutex_unlock(&dev->mode_config.mutex); drm_sysfs_hotplug_event(dev); - +out_fini: + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + mutex_unlock(&dev->mode_config.mutex); + return 0; } |
