diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index ea797d4c82ee..428d82662dc4 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -512,8 +512,8 @@ drm_atomic_crtc_get_property(struct drm_crtc *crtc, } static int drm_atomic_plane_set_property(struct drm_plane *plane, - struct drm_plane_state *state, struct drm_property *property, - uint64_t val) + struct drm_plane_state *state, struct drm_file *file_priv, + struct drm_property *property, uint64_t val) { struct drm_device *dev = plane->dev; struct drm_mode_config *config = &dev->mode_config; @@ -521,7 +521,8 @@ static int drm_atomic_plane_set_property(struct drm_plane *plane, int ret; if (property == config->prop_fb_id) { - struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, NULL, val); + struct drm_framebuffer *fb; + fb = drm_framebuffer_lookup(dev, file_priv, val); drm_atomic_set_fb_for_plane(state, fb); if (fb) drm_framebuffer_put(fb); @@ -537,7 +538,9 @@ static int drm_atomic_plane_set_property(struct drm_plane *plane, return -EINVAL; } else if (property == config->prop_crtc_id) { - struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val); + struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val); + if (val && !crtc) + return -EACCES; return drm_atomic_set_crtc_for_plane(state, crtc); } else if (property == config->prop_crtc_x) { state->crtc_x = U642I64(val); @@ -668,14 +671,16 @@ static int drm_atomic_set_writeback_fb_for_connector( } static int drm_atomic_connector_set_property(struct drm_connector *connector, - struct drm_connector_state *state, struct drm_property *property, - uint64_t val) + struct drm_connector_state *state, struct drm_file *file_priv, + struct drm_property *property, uint64_t val) { struct drm_device *dev = connector->dev; struct drm_mode_config *config = &dev->mode_config; if (property == config->prop_crtc_id) { - struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val); + struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val); + if (val && !crtc) + return -EACCES; return drm_atomic_set_crtc_for_connector(state, crtc); } else if (property == config->dpms_property) { /* setting DPMS property requires special handling, which @@ -736,8 +741,10 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector, } else if (property == connector->colorspace_property) { state->colorspace = val; } else if (property == config->writeback_fb_id_property) { - struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, NULL, val); - int ret = drm_atomic_set_writeback_fb_for_connector(state, fb); + struct drm_framebuffer *fb; + int ret; + fb = drm_framebuffer_lookup(dev, file_priv, val); + ret = drm_atomic_set_writeback_fb_for_connector(state, fb); if (fb) drm_framebuffer_put(fb); return ret; @@ -934,6 +941,7 @@ out: } int drm_atomic_set_property(struct drm_atomic_state *state, + struct drm_file *file_priv, struct drm_mode_object *obj, struct drm_property *prop, uint64_t prop_value) @@ -956,7 +964,8 @@ int drm_atomic_set_property(struct drm_atomic_state *state, } ret = drm_atomic_connector_set_property(connector, - connector_state, prop, prop_value); + connector_state, file_priv, + prop, prop_value); break; } case DRM_MODE_OBJECT_CRTC: { @@ -984,7 +993,8 @@ int drm_atomic_set_property(struct drm_atomic_state *state, } ret = drm_atomic_plane_set_property(plane, - plane_state, prop, prop_value); + plane_state, file_priv, + prop, prop_value); break; } default: @@ -1354,8 +1364,8 @@ retry: goto out; } - ret = drm_atomic_set_property(state, obj, prop, - prop_value); + ret = drm_atomic_set_property(state, file_priv, + obj, prop, prop_value); if (ret) { drm_mode_object_put(obj); goto out; diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c index e88151b65c22..22c7a104b802 100644 --- a/drivers/gpu/drm/drm_auth.c +++ b/drivers/gpu/drm/drm_auth.c @@ -108,8 +108,6 @@ struct drm_master *drm_master_create(struct drm_device *dev) master->dev = dev; /* initialize the tree of output resource lessees */ - master->lessor = NULL; - master->lessee_id = 0; INIT_LIST_HEAD(&master->lessees); INIT_LIST_HEAD(&master->lessee_list); idr_init(&master->leases); diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 7dabbaf033a1..790ba5941954 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -559,6 +559,10 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, plane = crtc->primary; + /* allow disabling with the primary plane leased */ + if (crtc_req->mode_valid && !drm_lease_held(file_priv, plane->base.id)) + return -EACCES; + mutex_lock(&crtc->dev->mode_config.mutex); DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h index 216f2a9ee3d4..0719a235d6cc 100644 --- a/drivers/gpu/drm/drm_crtc_internal.h +++ b/drivers/gpu/drm/drm_crtc_internal.h @@ -214,6 +214,7 @@ int drm_atomic_connector_commit_dpms(struct drm_atomic_state *state, struct drm_connector *connector, int mode); int drm_atomic_set_property(struct drm_atomic_state *state, + struct drm_file *file_priv, struct drm_mode_object *obj, struct drm_property *prop, uint64_t prop_value); diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 226c0910ba91..498f95c3e81d 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -2588,6 +2588,9 @@ static bool drm_fb_helper_firmware_config(struct drm_fb_helper *fb_helper, int num_connectors_detected = 0; struct drm_modeset_acquire_ctx ctx; + if (!drm_drv_uses_atomic_modeset(dev)) + return false; + save_enabled = kcalloc(count, sizeof(bool), GFP_KERNEL); if (!save_enabled) return false; diff --git a/drivers/gpu/drm/drm_lease.c b/drivers/gpu/drm/drm_lease.c index 603b0bd9c5ce..694ff363a90b 100644 --- a/drivers/gpu/drm/drm_lease.c +++ b/drivers/gpu/drm/drm_lease.c @@ -111,7 +111,7 @@ static bool _drm_has_leased(struct drm_master *master, int id) */ bool _drm_lease_held(struct drm_file *file_priv, int id) { - if (file_priv == NULL || file_priv->master == NULL) + if (!file_priv || !file_priv->master) return true; return _drm_lease_held_master(file_priv->master, id); @@ -133,7 +133,7 @@ bool drm_lease_held(struct drm_file *file_priv, int id) struct drm_master *master; bool ret; - if (file_priv == NULL || file_priv->master == NULL) + if (!file_priv || !file_priv->master || !file_priv->master->lessor) return true; master = file_priv->master; @@ -159,7 +159,7 @@ uint32_t drm_lease_filter_crtcs(struct drm_file *file_priv, uint32_t crtcs_in) int count_in, count_out; uint32_t crtcs_out = 0; - if (file_priv == NULL || file_priv->master == NULL) + if (!file_priv || !file_priv->master || !file_priv->master->lessor) return crtcs_in; master = file_priv->master; @@ -220,8 +220,6 @@ static struct drm_master *drm_lease_create(struct drm_master *lessor, struct idr error = 0; if (!idr_find(&dev->mode_config.object_idr, object)) error = -ENOENT; - else if (!_drm_lease_held_master(lessor, object)) - error = -EACCES; else if (_drm_has_leased(lessor, object)) error = -EBUSY; @@ -403,11 +401,6 @@ static int fill_object_idr(struct drm_device *dev, /* step one - get references to all the mode objects and check for validity. */ for (o = 0; o < object_count; o++) { - if ((int) object_ids[o] < 0) { - ret = -EINVAL; - goto out_free_objects; - } - objects[o] = drm_mode_object_find(dev, lessor_priv, object_ids[o], DRM_MODE_OBJECT_ANY); diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c index a9005c1c2384..f32507e65b79 100644 --- a/drivers/gpu/drm/drm_mode_object.c +++ b/drivers/gpu/drm/drm_mode_object.c @@ -451,6 +451,7 @@ static int set_property_legacy(struct drm_mode_object *obj, } static int set_property_atomic(struct drm_mode_object *obj, + struct drm_file *file_priv, struct drm_property *prop, uint64_t prop_value) { @@ -477,7 +478,7 @@ retry: obj_to_connector(obj), prop_value); } else { - ret = drm_atomic_set_property(state, obj, prop, prop_value); + ret = drm_atomic_set_property(state, file_priv, obj, prop, prop_value); if (ret) goto out; ret = drm_atomic_commit(state); @@ -520,7 +521,7 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, goto out_unref; if (drm_drv_uses_atomic_modeset(property->dev)) - ret = set_property_atomic(arg_obj, property, arg->value); + ret = set_property_atomic(arg_obj, file_priv, property, arg->value); else ret = set_property_legacy(arg_obj, property, arg->value); diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index 4cfb56893b7f..d6ad60ab0d38 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -960,6 +960,11 @@ retry: if (ret) goto out; + if (!drm_lease_held(file_priv, crtc->cursor->base.id)) { + ret = -EACCES; + goto out; + } + ret = drm_mode_cursor_universal(crtc, req, file_priv, &ctx); goto out; } @@ -1062,6 +1067,9 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, plane = crtc->primary; + if (!drm_lease_held(file_priv, plane->base.id)) + return -EACCES; + if (crtc->funcs->page_flip_target) { u32 current_vblank; int r;