diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/Makefile | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 988 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_crtc_internal.h | 38 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_framebuffer.c | 26 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_plane.c | 990 |
5 files changed, 1044 insertions, 1001 deletions
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 439d89b25ae0..8eeb07a35798 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -14,7 +14,8 @@ drm-y := drm_auth.o drm_bufs.o drm_cache.o \ drm_rect.o drm_vma_manager.o drm_flip_work.o \ drm_modeset_lock.o drm_atomic.o drm_bridge.o \ drm_framebuffer.o drm_connector.o drm_blend.o \ - drm_encoder.o drm_mode_object.o drm_property.o + drm_encoder.o drm_mode_object.o drm_property.o \ + drm_plane.o drm-$(CONFIG_COMPAT) += drm_ioc32.o drm-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_gem_cma_helper.o diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 631691bae01d..deefb24649b2 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -251,255 +251,6 @@ void drm_crtc_cleanup(struct drm_crtc *crtc) } EXPORT_SYMBOL(drm_crtc_cleanup); -static unsigned int drm_num_planes(struct drm_device *dev) -{ - unsigned int num = 0; - struct drm_plane *tmp; - - drm_for_each_plane(tmp, dev) { - num++; - } - - return num; -} - -/** - * drm_universal_plane_init - Initialize a new universal plane object - * @dev: DRM device - * @plane: plane object to init - * @possible_crtcs: bitmask of possible CRTCs - * @funcs: callbacks for the new plane - * @formats: array of supported formats (DRM_FORMAT\_\*) - * @format_count: number of elements in @formats - * @type: type of plane (overlay, primary, cursor) - * @name: printf style format string for the plane name, or NULL for default name - * - * Initializes a plane object of type @type. - * - * Returns: - * Zero on success, error code on failure. - */ -int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, - unsigned long possible_crtcs, - const struct drm_plane_funcs *funcs, - const uint32_t *formats, unsigned int format_count, - enum drm_plane_type type, - const char *name, ...) -{ - struct drm_mode_config *config = &dev->mode_config; - int ret; - - ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); - if (ret) - return ret; - - drm_modeset_lock_init(&plane->mutex); - - plane->base.properties = &plane->properties; - plane->dev = dev; - plane->funcs = funcs; - plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), - GFP_KERNEL); - if (!plane->format_types) { - DRM_DEBUG_KMS("out of memory when allocating plane\n"); - drm_mode_object_unregister(dev, &plane->base); - return -ENOMEM; - } - - if (name) { - va_list ap; - - va_start(ap, name); - plane->name = kvasprintf(GFP_KERNEL, name, ap); - va_end(ap); - } else { - plane->name = kasprintf(GFP_KERNEL, "plane-%d", - drm_num_planes(dev)); - } - if (!plane->name) { - kfree(plane->format_types); - drm_mode_object_unregister(dev, &plane->base); - return -ENOMEM; - } - - memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); - plane->format_count = format_count; - plane->possible_crtcs = possible_crtcs; - plane->type = type; - - list_add_tail(&plane->head, &config->plane_list); - plane->index = config->num_total_plane++; - if (plane->type == DRM_PLANE_TYPE_OVERLAY) - config->num_overlay_plane++; - - drm_object_attach_property(&plane->base, - config->plane_type_property, - plane->type); - - if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { - drm_object_attach_property(&plane->base, config->prop_fb_id, 0); - drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); - drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); - drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); - drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); - drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); - drm_object_attach_property(&plane->base, config->prop_src_x, 0); - drm_object_attach_property(&plane->base, config->prop_src_y, 0); - drm_object_attach_property(&plane->base, config->prop_src_w, 0); - drm_object_attach_property(&plane->base, config->prop_src_h, 0); - } - - return 0; -} -EXPORT_SYMBOL(drm_universal_plane_init); - -static int drm_plane_register_all(struct drm_device *dev) -{ - struct drm_plane *plane; - int ret = 0; - - drm_for_each_plane(plane, dev) { - if (plane->funcs->late_register) - ret = plane->funcs->late_register(plane); - if (ret) - return ret; - } - - return 0; -} - -static void drm_plane_unregister_all(struct drm_device *dev) -{ - struct drm_plane *plane; - - drm_for_each_plane(plane, dev) { - if (plane->funcs->early_unregister) - plane->funcs->early_unregister(plane); - } -} - -/** - * drm_plane_init - Initialize a legacy plane - * @dev: DRM device - * @plane: plane object to init - * @possible_crtcs: bitmask of possible CRTCs - * @funcs: callbacks for the new plane - * @formats: array of supported formats (DRM_FORMAT\_\*) - * @format_count: number of elements in @formats - * @is_primary: plane type (primary vs overlay) - * - * Legacy API to initialize a DRM plane. - * - * New drivers should call drm_universal_plane_init() instead. - * - * Returns: - * Zero on success, error code on failure. - */ -int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, - unsigned long possible_crtcs, - const struct drm_plane_funcs *funcs, - const uint32_t *formats, unsigned int format_count, - bool is_primary) -{ - enum drm_plane_type type; - - type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; - return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, - formats, format_count, type, NULL); -} -EXPORT_SYMBOL(drm_plane_init); - -/** - * drm_plane_cleanup - Clean up the core plane usage - * @plane: plane to cleanup - * - * This function cleans up @plane and removes it from the DRM mode setting - * core. Note that the function does *not* free the plane structure itself, - * this is the responsibility of the caller. - */ -void drm_plane_cleanup(struct drm_plane *plane) -{ - struct drm_device *dev = plane->dev; - - drm_modeset_lock_all(dev); - kfree(plane->format_types); - drm_mode_object_unregister(dev, &plane->base); - - BUG_ON(list_empty(&plane->head)); - - /* Note that the plane_list is considered to be static; should we - * remove the drm_plane at runtime we would have to decrement all - * the indices on the drm_plane after us in the plane_list. - */ - - list_del(&plane->head); - dev->mode_config.num_total_plane--; - if (plane->type == DRM_PLANE_TYPE_OVERLAY) - dev->mode_config.num_overlay_plane--; - drm_modeset_unlock_all(dev); - - WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); - if (plane->state && plane->funcs->atomic_destroy_state) - plane->funcs->atomic_destroy_state(plane, plane->state); - - kfree(plane->name); - - memset(plane, 0, sizeof(*plane)); -} -EXPORT_SYMBOL(drm_plane_cleanup); - -/** - * drm_plane_from_index - find the registered plane at an index - * @dev: DRM device - * @idx: index of registered plane to find for - * - * Given a plane index, return the registered plane from DRM device's - * list of planes with matching index. - */ -struct drm_plane * -drm_plane_from_index(struct drm_device *dev, int idx) -{ - struct drm_plane *plane; - - drm_for_each_plane(plane, dev) - if (idx == plane->index) - return plane; - - return NULL; -} -EXPORT_SYMBOL(drm_plane_from_index); - -/** - * drm_plane_force_disable - Forcibly disable a plane - * @plane: plane to disable - * - * Forces the plane to be disabled. - * - * Used when the plane's current framebuffer is destroyed, - * and when restoring fbdev mode. - */ -void drm_plane_force_disable(struct drm_plane *plane) -{ - int ret; - - if (!plane->fb) - return; - - plane->old_fb = plane->fb; - ret = plane->funcs->disable_plane(plane); - if (ret) { - DRM_ERROR("failed to disable plane with busy fb\n"); - plane->old_fb = NULL; - return; - } - /* disconnect the plane from the fb and crtc: */ - drm_framebuffer_unreference(plane->old_fb); - plane->old_fb = NULL; - plane->fb = NULL; - plane->crtc = NULL; -} -EXPORT_SYMBOL(drm_plane_force_disable); - int drm_modeset_register_all(struct drm_device *dev) { int ret; @@ -855,343 +606,6 @@ int drm_mode_getcrtc(struct drm_device *dev, } /** - * drm_mode_getplane_res - enumerate all plane resources - * @dev: DRM device - * @data: ioctl data - * @file_priv: DRM file info - * - * Construct a list of plane ids to return to the user. - * - * Called by the user via ioctl. - * - * Returns: - * Zero on success, negative errno on failure. - */ -int drm_mode_getplane_res(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_mode_get_plane_res *plane_resp = data; - struct drm_mode_config *config; - struct drm_plane *plane; - uint32_t __user *plane_ptr; - int copied = 0; - unsigned num_planes; - - if (!drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - - config = &dev->mode_config; - - if (file_priv->universal_planes) - num_planes = config->num_total_plane; - else - num_planes = config->num_overlay_plane; - - /* - * This ioctl is called twice, once to determine how much space is - * needed, and the 2nd time to fill it. - */ - if (num_planes && - (plane_resp->count_planes >= num_planes)) { - plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; - - /* Plane lists are invariant, no locking needed. */ - drm_for_each_plane(plane, dev) { - /* - * Unless userspace set the 'universal planes' - * capability bit, only advertise overlays. - */ - if (plane->type != DRM_PLANE_TYPE_OVERLAY && - !file_priv->universal_planes) - continue; - - if (put_user(plane->base.id, plane_ptr + copied)) - return -EFAULT; - copied++; - } - } - plane_resp->count_planes = num_planes; - - return 0; -} - -/** - * drm_mode_getplane - get plane configuration - * @dev: DRM device - * @data: ioctl data - * @file_priv: DRM file info - * - * Construct a plane configuration structure to return to the user. - * - * Called by the user via ioctl. - * - * Returns: - * Zero on success, negative errno on failure. - */ -int drm_mode_getplane(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_mode_get_plane *plane_resp = data; - struct drm_plane *plane; - uint32_t __user *format_ptr; - - if (!drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - - plane = drm_plane_find(dev, plane_resp->plane_id); - if (!plane) - return -ENOENT; - - drm_modeset_lock(&plane->mutex, NULL); - if (plane->crtc) - plane_resp->crtc_id = plane->crtc->base.id; - else - plane_resp->crtc_id = 0; - - if (plane->fb) - plane_resp->fb_id = plane->fb->base.id; - else - plane_resp->fb_id = 0; - drm_modeset_unlock(&plane->mutex); - - plane_resp->plane_id = plane->base.id; - plane_resp->possible_crtcs = plane->possible_crtcs; - plane_resp->gamma_size = 0; - - /* - * This ioctl is called twice, once to determine how much space is - * needed, and the 2nd time to fill it. - */ - if (plane->format_count && - (plane_resp->count_format_types >= plane->format_count)) { - format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; - if (copy_to_user(format_ptr, - plane->format_types, - sizeof(uint32_t) * plane->format_count)) { - return -EFAULT; - } - } - plane_resp->count_format_types = plane->format_count; - - return 0; -} - -/** - * drm_plane_check_pixel_format - Check if the plane supports the pixel format - * @plane: plane to check for format support - * @format: the pixel format - * - * Returns: - * Zero of @plane has @format in its list of supported pixel formats, -EINVAL - * otherwise. - */ -int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) -{ - unsigned int i; - - for (i = 0; i < plane->format_count; i++) { - if (format == plane->format_types[i]) - return 0; - } - - return -EINVAL; -} - -static int check_src_coords(uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h, - const struct drm_framebuffer *fb) -{ - unsigned int fb_width, fb_height; - - fb_width = fb->width << 16; - fb_height = fb->height << 16; - - /* Make sure source coordinates are inside the fb. */ - if (src_w > fb_width || - src_x > fb_width - src_w || - src_h > fb_height || - src_y > fb_height - src_h) { - DRM_DEBUG_KMS("Invalid source coordinates " - "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", - src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, - src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, - src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, - src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); - return -ENOSPC; - } - - return 0; -} - -/* - * setplane_internal - setplane handler for internal callers - * - * Note that we assume an extra reference has already been taken on fb. If the - * update fails, this reference will be dropped before return; if it succeeds, - * the previous framebuffer (if any) will be unreferenced instead. - * - * src_{x,y,w,h} are provided in 16.16 fixed point format - */ -static int __setplane_internal(struct drm_plane *plane, - struct drm_crtc *crtc, - struct drm_framebuffer *fb, - int32_t crtc_x, int32_t crtc_y, - uint32_t crtc_w, uint32_t crtc_h, - /* src_{x,y,w,h} values are 16.16 fixed point */ - uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h) -{ - int ret = 0; - - /* No fb means shut it down */ - if (!fb) { - plane->old_fb = plane->fb; - ret = plane->funcs->disable_plane(plane); - if (!ret) { - plane->crtc = NULL; - plane->fb = NULL; - } else { - plane->old_fb = NULL; - } - goto out; - } - - /* Check whether this plane is usable on this CRTC */ - if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { - DRM_DEBUG_KMS("Invalid crtc for plane\n"); - ret = -EINVAL; - goto out; - } - - /* Check whether this plane supports the fb pixel format. */ - ret = drm_plane_check_pixel_format(plane, fb->pixel_format); - if (ret) { - char *format_name = drm_get_format_name(fb->pixel_format); - DRM_DEBUG_KMS("Invalid pixel format %s\n", format_name); - kfree(format_name); - goto out; - } - - /* Give drivers some help against integer overflows */ - if (crtc_w > INT_MAX || - crtc_x > INT_MAX - (int32_t) crtc_w || - crtc_h > INT_MAX || - crtc_y > INT_MAX - (int32_t) crtc_h) { - DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", - crtc_w, crtc_h, crtc_x, crtc_y); - ret = -ERANGE; - goto out; - } - - ret = check_src_coords(src_x, src_y, src_w, src_h, fb); - if (ret) - goto out; - - plane->old_fb = plane->fb; - ret = plane->funcs->update_plane(plane, crtc, fb, - crtc_x, crtc_y, crtc_w, crtc_h, - src_x, src_y, src_w, src_h); - if (!ret) { - plane->crtc = crtc; - plane->fb = fb; - fb = NULL; - } else { - plane->old_fb = NULL; - } - -out: - if (fb) - drm_framebuffer_unreference(fb); - if (plane->old_fb) - drm_framebuffer_unreference(plane->old_fb); - plane->old_fb = NULL; - - return ret; -} - -static int setplane_internal(struct drm_plane *plane, - struct drm_crtc *crtc, - struct drm_framebuffer *fb, - int32_t crtc_x, int32_t crtc_y, - uint32_t crtc_w, uint32_t crtc_h, - /* src_{x,y,w,h} values are 16.16 fixed point */ - uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h) -{ - int ret; - - drm_modeset_lock_all(plane->dev); - ret = __setplane_internal(plane, crtc, fb, - crtc_x, crtc_y, crtc_w, crtc_h, - src_x, src_y, src_w, src_h); - drm_modeset_unlock_all(plane->dev); - - return ret; -} - -/** - * drm_mode_setplane - configure a plane's configuration - * @dev: DRM device - * @data: ioctl data* - * @file_priv: DRM file info - * - * Set plane configuration, including placement, fb, scaling, and other factors. - * Or pass a NULL fb to disable (planes may be disabled without providing a - * valid crtc). - * - * Returns: - * Zero on success, negative errno on failure. - */ -int drm_mode_setplane(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_mode_set_plane *plane_req = data; - struct drm_plane *plane; - struct drm_crtc *crtc = NULL; - struct drm_framebuffer *fb = NULL; - - if (!drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - - /* - * First, find the plane, crtc, and fb objects. If not available, - * we don't bother to call the driver. - */ - plane = drm_plane_find(dev, plane_req->plane_id); - if (!plane) { - DRM_DEBUG_KMS("Unknown plane ID %d\n", - plane_req->plane_id); - return -ENOENT; - } - - if (plane_req->fb_id) { - fb = drm_framebuffer_lookup(dev, plane_req->fb_id); - if (!fb) { - DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", - plane_req->fb_id); - return -ENOENT; - } - - crtc = drm_crtc_find(dev, plane_req->crtc_id); - if (!crtc) { - DRM_DEBUG_KMS("Unknown crtc ID %d\n", - plane_req->crtc_id); - return -ENOENT; - } - } - - /* - * setplane_internal will take care of deref'ing either the old or new - * framebuffer depending on success. - */ - return setplane_internal(plane, crtc, fb, - plane_req->crtc_x, plane_req->crtc_y, - plane_req->crtc_w, plane_req->crtc_h, - plane_req->src_x, plane_req->src_y, - plane_req->src_w, plane_req->src_h); -} - -/** * drm_mode_set_config_internal - helper to call ->set_config * @set: modeset config to set * @@ -1281,8 +695,9 @@ int drm_crtc_check_viewport(const struct drm_crtc *crtc, DRM_ROTATE_270)) swap(hdisplay, vdisplay); - return check_src_coords(x << 16, y << 16, - hdisplay << 16, vdisplay << 16, fb); + return drm_framebuffer_check_src_coords(x << 16, y << 16, + hdisplay << 16, vdisplay << 16, + fb); } EXPORT_SYMBOL(drm_crtc_check_viewport); @@ -1469,208 +884,6 @@ out: return ret; } -/** - * drm_mode_cursor_universal - translate legacy cursor ioctl call into a - * universal plane handler call - * @crtc: crtc to update cursor for - * @req: data pointer for the ioctl - * @file_priv: drm file for the ioctl call - * - * Legacy cursor ioctl's work directly with driver buffer handles. To - * translate legacy ioctl calls into universal plane handler calls, we need to - * wrap the native buffer handle in a drm_framebuffer. - * - * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB - * buffer with a pitch of 4*width; the universal plane interface should be used - * directly in cases where the hardware can support other buffer settings and - * userspace wants to make use of these capabilities. - * - * Returns: - * Zero on success, negative errno on failure. - */ -static int drm_mode_cursor_universal(struct drm_crtc *crtc, - struct drm_mode_cursor2 *req, - struct drm_file *file_priv) -{ - struct drm_device *dev = crtc->dev; - struct drm_framebuffer *fb = NULL; - struct drm_mode_fb_cmd2 fbreq = { - .width = req->width, - .height = req->height, - .pixel_format = DRM_FORMAT_ARGB8888, - .pitches = { req->width * 4 }, - .handles = { req->handle }, - }; - int32_t crtc_x, crtc_y; - uint32_t crtc_w = 0, crtc_h = 0; - uint32_t src_w = 0, src_h = 0; - int ret = 0; - - BUG_ON(!crtc->cursor); - WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); - - /* - * Obtain fb we'll be using (either new or existing) and take an extra - * reference to it if fb != null. setplane will take care of dropping - * the reference if the plane update fails. - */ - if (req->flags & DRM_MODE_CURSOR_BO) { - if (req->handle) { - fb = drm_internal_framebuffer_create(dev, &fbreq, file_priv); - if (IS_ERR(fb)) { - DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); - return PTR_ERR(fb); - } - fb->hot_x = req->hot_x; - fb->hot_y = req->hot_y; - } else { - fb = NULL; - } - } else { - fb = crtc->cursor->fb; - if (fb) - drm_framebuffer_reference(fb); - } - - if (req->flags & DRM_MODE_CURSOR_MOVE) { - crtc_x = req->x; - crtc_y = req->y; - } else { - crtc_x = crtc->cursor_x; - crtc_y = crtc->cursor_y; - } - - if (fb) { - crtc_w = fb->width; - crtc_h = fb->height; - src_w = fb->width << 16; - src_h = fb->height << 16; - } - - /* - * setplane_internal will take care of deref'ing either the old or new - * framebuffer depending on success. - */ - ret = __setplane_internal(crtc->cursor, crtc, fb, - crtc_x, crtc_y, crtc_w, crtc_h, - 0, 0, src_w, src_h); - - /* Update successful; save new cursor position, if necessary */ - if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { - crtc->cursor_x = req->x; - crtc->cursor_y = req->y; - } - - return ret; -} - -static int drm_mode_cursor_common(struct drm_device *dev, - struct drm_mode_cursor2 *req, - struct drm_file *file_priv) -{ - struct drm_crtc *crtc; - int ret = 0; - - if (!drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - - if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) - return -EINVAL; - - crtc = drm_crtc_find(dev, req->crtc_id); - if (!crtc) { - DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); - return -ENOENT; - } - - /* - * If this crtc has a universal cursor plane, call that plane's update - * handler rather than using legacy cursor handlers. - */ - drm_modeset_lock_crtc(crtc, crtc->cursor); - if (crtc->cursor) { - ret = drm_mode_cursor_universal(crtc, req, file_priv); - goto out; - } - - if (req->flags & DRM_MODE_CURSOR_BO) { - if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { - ret = -ENXIO; - goto out; - } - /* Turns off the cursor if handle is 0 */ - if (crtc->funcs->cursor_set2) - ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, - req->width, req->height, req->hot_x, req->hot_y); - else - ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, - req->width, req->height); - } - - if (req->flags & DRM_MODE_CURSOR_MOVE) { - if (crtc->funcs->cursor_move) { - ret = crtc->funcs->cursor_move(crtc, req->x, req->y); - } else { - ret = -EFAULT; - goto out; - } - } -out: - drm_modeset_unlock_crtc(crtc); - - return ret; - -} - - -/** - * drm_mode_cursor_ioctl - set CRTC's cursor configuration - * @dev: drm device for the ioctl - * @data: data pointer for the ioctl - * @file_priv: drm file for the ioctl call - * - * Set the cursor configuration based on user request. - * - * Called by the user via ioctl. - * - * Returns: - * Zero on success, negative errno on failure. - */ -int drm_mode_cursor_ioctl(struct drm_device *dev, - void *data, struct drm_file *file_priv) -{ - struct drm_mode_cursor *req = data; - struct drm_mode_cursor2 new_req; - - memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); - new_req.hot_x = new_req.hot_y = 0; - - return drm_mode_cursor_common(dev, &new_req, file_priv); -} - -/** - * drm_mode_cursor2_ioctl - set CRTC's cursor configuration - * @dev: drm device for the ioctl - * @data: data pointer for the ioctl - * @file_priv: drm file for the ioctl call - * - * Set the cursor configuration based on user request. This implements the 2nd - * version of the cursor ioctl, which allows userspace to additionally specify - * the hotspot of the pointer. - * - * Called by the user via ioctl. - * - * Returns: - * Zero on success, negative errno on failure. - */ -int drm_mode_cursor2_ioctl(struct drm_device *dev, - void *data, struct drm_file *file_priv) -{ - struct drm_mode_cursor2 *req = data; - - return drm_mode_cursor_common(dev, req, file_priv); -} - int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, struct drm_property *property, uint64_t value) @@ -1687,35 +900,6 @@ int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, } /** - * drm_mode_plane_set_obj_prop - set the value of a property - * @plane: drm plane object to set property value for - * @property: property to set - * @value: value the property should be set to - * - * This functions sets a given property on a given plane object. This function - * calls the driver's ->set_property callback and changes the software state of - * the property if the callback succeeds. - * - * Returns: - * Zero on success, error code on failure. - */ -int drm_mode_plane_set_obj_prop(struct drm_plane *plane, - struct drm_property *property, - uint64_t value) -{ - int ret = -EINVAL; - struct drm_mode_object *obj = &plane->base; - - if (plane->funcs->set_property) - ret = plane->funcs->set_property(plane, property, value); - if (!ret) - drm_object_property_set_value(obj, property, value); - - return ret; -} -EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); - -/** * drm_mode_crtc_set_gamma_size - set the gamma table size * @crtc: CRTC to set the gamma table size for * @gamma_size: size of the gamma table @@ -1891,172 +1075,6 @@ out: } /** - * drm_mode_page_flip_ioctl - schedule an asynchronous fb update - * @dev: DRM device - * @data: ioctl data - * @file_priv: DRM file info - * - * This schedules an asynchronous update on a given CRTC, called page flip. - * Optionally a drm event is generated to signal the completion of the event. - * Generic drivers cannot assume that a pageflip with changed framebuffer - * properties (including driver specific metadata like tiling layout) will work, - * but some drivers support e.g. pixel format changes through the pageflip - * ioctl. - * - * Called by the user via ioctl. - * - * Returns: - * Zero on success, negative errno on failure. - */ -int drm_mode_page_flip_ioctl(struct drm_device *dev, - void *data, struct drm_file *file_priv) -{ - struct drm_mode_crtc_page_flip_target *page_flip = data; - struct drm_crtc *crtc; - struct drm_framebuffer *fb = NULL; - struct drm_pending_vblank_event *e = NULL; - u32 target_vblank = page_flip->sequence; - int ret = -EINVAL; - - if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS) - return -EINVAL; - - if (page_flip->sequence != 0 && !(page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET)) - return -EINVAL; - - /* Only one of the DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags - * can be specified - */ - if ((page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) == DRM_MODE_PAGE_FLIP_TARGET) - return -EINVAL; - - if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) - return -EINVAL; - - crtc = drm_crtc_find(dev, page_flip->crtc_id); - if (!crtc) - return -ENOENT; - - if (crtc->funcs->page_flip_target) { - u32 current_vblank; - int r; - - r = drm_crtc_vblank_get(crtc); - if (r) - return r; - - current_vblank = drm_crtc_vblank_count(crtc); - - switch (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) { - case DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE: - if ((int)(target_vblank - current_vblank) > 1) { - DRM_DEBUG("Invalid absolute flip target %u, " - "must be <= %u\n", target_vblank, - current_vblank + 1); - drm_crtc_vblank_put(crtc); - return -EINVAL; - } - break; - case DRM_MODE_PAGE_FLIP_TARGET_RELATIVE: - if (target_vblank != 0 && target_vblank != 1) { - DRM_DEBUG("Invalid relative flip target %u, " - "must be 0 or 1\n", target_vblank); - drm_crtc_vblank_put(crtc); - return -EINVAL; - } - target_vblank += current_vblank; - break; - default: - target_vblank = current_vblank + - !(page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC); - break; - } - } else if (crtc->funcs->page_flip == NULL || - (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET)) { - return -EINVAL; - } - - drm_modeset_lock_crtc(crtc, crtc->primary); - if (crtc->primary->fb == NULL) { - /* The framebuffer is currently unbound, presumably - * due to a hotplug event, that userspace has not - * yet discovered. - */ - ret = -EBUSY; - goto out; - } - - fb = drm_framebuffer_lookup(dev, page_flip->fb_id); - if (!fb) { - ret = -ENOENT; - goto out; - } - - if (crtc->state) { - const struct drm_plane_state *state = crtc->primary->state; - - ret = check_src_coords(state->src_x, state->src_y, - state->src_w, state->src_h, fb); - } else { - ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); - } - if (ret) - goto out; - - if (crtc->primary->fb->pixel_format != fb->pixel_format) { - DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); - ret = -EINVAL; - goto out; - } - - if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { - e = kzalloc(sizeof *e, GFP_KERNEL); - if (!e) { - ret = -ENOMEM; - goto out; - } - e->event.base.type = DRM_EVENT_FLIP_COMPLETE; - e->event.base.length = sizeof(e->event); - e->event.user_data = page_flip->user_data; - ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base); - if (ret) { - kfree(e); - goto out; - } - } - - crtc->primary->old_fb = crtc->primary->fb; - if (crtc->funcs->page_flip_target) - ret = crtc->funcs->page_flip_target(crtc, fb, e, - page_flip->flags, - target_vblank); - else - ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); - if (ret) { - if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) - drm_event_cancel_free(dev, &e->base); - /* Keep the old fb, don't unref it. */ - crtc->primary->old_fb = NULL; - } else { - crtc->primary->fb = fb; - /* Unref only the old framebuffer. */ - fb = NULL; - } - -out: - if (ret && crtc->funcs->page_flip_target) - drm_crtc_vblank_put(crtc); - if (fb) - drm_framebuffer_unreference(fb); - if (crtc->primary->old_fb) - drm_framebuffer_unreference(crtc->primary->old_fb); - crtc->primary->old_fb = NULL; - drm_modeset_unlock_crtc(crtc); - - return ret; -} - -/** * drm_mode_config_reset - call ->reset callbacks * @dev: drm device * diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h index 444e609078cc..aff42fc84658 100644 --- a/drivers/gpu/drm/drm_crtc_internal.h +++ b/drivers/gpu/drm/drm_crtc_internal.h @@ -36,8 +36,6 @@ int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, struct drm_property *property, uint64_t value); -int drm_plane_check_pixel_format(const struct drm_plane *plane, - u32 format); int drm_crtc_check_viewport(const struct drm_crtc *crtc, int x, int y, const struct drm_display_mode *mode, @@ -56,28 +54,15 @@ int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, /* IOCTLs */ int drm_mode_getresources(struct drm_device *dev, void *data, struct drm_file *file_priv); -int drm_mode_getplane_res(struct drm_device *dev, void *data, - struct drm_file *file_priv); int drm_mode_getcrtc(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_mode_setcrtc(struct drm_device *dev, void *data, struct drm_file *file_priv); -int drm_mode_getplane(struct drm_device *dev, - void *data, struct drm_file *file_priv); -int drm_mode_setplane(struct drm_device *dev, - void *data, struct drm_file *file_priv); -int drm_mode_cursor_ioctl(struct drm_device *dev, - void *data, struct drm_file *file_priv); -int drm_mode_cursor2_ioctl(struct drm_device *dev, - void *data, struct drm_file *file_priv); int drm_mode_gamma_get_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_mode_gamma_set_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -int drm_mode_page_flip_ioctl(struct drm_device *dev, - void *data, struct drm_file *file_priv); - /* drm_property.c */ void drm_property_destroy_user_blobs(struct drm_device *dev, struct drm_file *file_priv); @@ -155,6 +140,9 @@ drm_internal_framebuffer_create(struct drm_device *dev, const struct drm_mode_fb_cmd2 *r, struct drm_file *file_priv); void drm_framebuffer_free(struct kref *kref); +int drm_framebuffer_check_src_coords(uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h, + const struct drm_framebuffer *fb); /* IOCTL */ int drm_mode_addfb(struct drm_device *dev, @@ -180,3 +168,23 @@ void drm_modeset_unregister_all(struct drm_device *dev); /* drm_blend.c */ int drm_atomic_normalize_zpos(struct drm_device *dev, struct drm_atomic_state *state); + +/* drm_plane.c */ +int drm_plane_register_all(struct drm_device *dev); +void drm_plane_unregister_all(struct drm_device *dev); +int drm_plane_check_pixel_format(const struct drm_plane *plane, + u32 format); + +/* IOCTL */ +int drm_mode_getplane_res(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int drm_mode_getplane(struct drm_device *dev, + void *data, struct drm_file *file_priv); +int drm_mode_setplane(struct drm_device *dev, + void *data, struct drm_file *file_priv); +int drm_mode_cursor_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv); +int drm_mode_cursor2_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv); +int drm_mode_page_flip_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv); diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c index 30dc01e6eb5d..398efd67cb93 100644 --- a/drivers/gpu/drm/drm_framebuffer.c +++ b/drivers/gpu/drm/drm_framebuffer.c @@ -62,6 +62,32 @@ * &drm_framebuffer. */ +int drm_framebuffer_check_src_coords(uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h, + const struct drm_framebuffer *fb) +{ + unsigned int fb_width, fb_height; + + fb_width = fb->width << 16; + fb_height = fb->height << 16; + + /* Make sure source coordinates are inside the fb. */ + if (src_w > fb_width || + src_x > fb_width - src_w || + src_h > fb_height || + src_y > fb_height - src_h) { + DRM_DEBUG_KMS("Invalid source coordinates " + "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", + src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, + src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, + src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, + src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); + return -ENOSPC; + } + + return 0; +} + /** * drm_mode_addfb - add an FB to the graphics configuration * @dev: drm device for the ioctl diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c new file mode 100644 index 000000000000..9003b5f835cf --- /dev/null +++ b/drivers/gpu/drm/drm_plane.c @@ -0,0 +1,990 @@ +/* + * Copyright (c) 2016 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <drm/drmP.h> +#include <drm/drm_plane.h> + +#include "drm_crtc_internal.h" + +static unsigned int drm_num_planes(struct drm_device *dev) +{ + unsigned int num = 0; + struct drm_plane *tmp; + + drm_for_each_plane(tmp, dev) { + num++; + } + + return num; +} + +/** + * drm_universal_plane_init - Initialize a new universal plane object + * @dev: DRM device + * @plane: plane object to init + * @possible_crtcs: bitmask of possible CRTCs + * @funcs: callbacks for the new plane + * @formats: array of supported formats (DRM_FORMAT\_\*) + * @format_count: number of elements in @formats + * @type: type of plane (overlay, primary, cursor) + * @name: printf style format string for the plane name, or NULL for default name + * + * Initializes a plane object of type @type. + * + * Returns: + * Zero on success, error code on failure. + */ +int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, + unsigned long possible_crtcs, + const struct drm_plane_funcs *funcs, + const uint32_t *formats, unsigned int format_count, + enum drm_plane_type type, + const char *name, ...) +{ + struct drm_mode_config *config = &dev->mode_config; + int ret; + + ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); + if (ret) + return ret; + + drm_modeset_lock_init(&plane->mutex); + + plane->base.properties = &plane->properties; + plane->dev = dev; + plane->funcs = funcs; + plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), + GFP_KERNEL); + if (!plane->format_types) { + DRM_DEBUG_KMS("out of memory when allocating plane\n"); + drm_mode_object_unregister(dev, &plane->base); + return -ENOMEM; + } + + if (name) { + va_list ap; + + va_start(ap, name); + plane->name = kvasprintf(GFP_KERNEL, name, ap); + va_end(ap); + } else { + plane->name = kasprintf(GFP_KERNEL, "plane-%d", + drm_num_planes(dev)); + } + if (!plane->name) { + kfree(plane->format_types); + drm_mode_object_unregister(dev, &plane->base); + return -ENOMEM; + } + + memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); + plane->format_count = format_count; + plane->possible_crtcs = possible_crtcs; + plane->type = type; + + list_add_tail(&plane->head, &config->plane_list); + plane->index = config->num_total_plane++; + if (plane->type == DRM_PLANE_TYPE_OVERLAY) + config->num_overlay_plane++; + + drm_object_attach_property(&plane->base, + config->plane_type_property, + plane->type); + + if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { + drm_object_attach_property(&plane->base, config->prop_fb_id, 0); + drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); + drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); + drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); + drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); + drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); + drm_object_attach_property(&plane->base, config->prop_src_x, 0); + drm_object_attach_property(&plane->base, config->prop_src_y, 0); + drm_object_attach_property(&plane->base, config->prop_src_w, 0); + drm_object_attach_property(&plane->base, config->prop_src_h, 0); + } + + return 0; +} +EXPORT_SYMBOL(drm_universal_plane_init); + +int drm_plane_register_all(struct drm_device *dev) +{ + struct drm_plane *plane; + int ret = 0; + + drm_for_each_plane(plane, dev) { + if (plane->funcs->late_register) + ret = plane->funcs->late_register(plane); + if (ret) + return ret; + } + + return 0; +} + +void drm_plane_unregister_all(struct drm_device *dev) +{ + struct drm_plane *plane; + + drm_for_each_plane(plane, dev) { + if (plane->funcs->early_unregister) + plane->funcs->early_unregister(plane); + } +} + +/** + * drm_plane_init - Initialize a legacy plane + * @dev: DRM device + * @plane: plane object to init + * @possible_crtcs: bitmask of possible CRTCs + * @funcs: callbacks for the new plane + * @formats: array of supported formats (DRM_FORMAT\_\*) + * @format_count: number of elements in @formats + * @is_primary: plane type (primary vs overlay) + * + * Legacy API to initialize a DRM plane. + * + * New drivers should call drm_universal_plane_init() instead. + * + * Returns: + * Zero on success, error code on failure. + */ +int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, + unsigned long possible_crtcs, + const struct drm_plane_funcs *funcs, + const uint32_t *formats, unsigned int format_count, + bool is_primary) +{ + enum drm_plane_type type; + + type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; + return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, + formats, format_count, type, NULL); +} +EXPORT_SYMBOL(drm_plane_init); + +/** + * drm_plane_cleanup - Clean up the core plane usage + * @plane: plane to cleanup + * + * This function cleans up @plane and removes it from the DRM mode setting + * core. Note that the function does *not* free the plane structure itself, + * this is the responsibility of the caller. + */ +void drm_plane_cleanup(struct drm_plane *plane) +{ + struct drm_device *dev = plane->dev; + + drm_modeset_lock_all(dev); + kfree(plane->format_types); + drm_mode_object_unregister(dev, &plane->base); + + BUG_ON(list_empty(&plane->head)); + + /* Note that the plane_list is considered to be static; should we + * remove the drm_plane at runtime we would have to decrement all + * the indices on the drm_plane after us in the plane_list. + */ + + list_del(&plane->head); + dev->mode_config.num_total_plane--; + if (plane->type == DRM_PLANE_TYPE_OVERLAY) + dev->mode_config.num_overlay_plane--; + drm_modeset_unlock_all(dev); + + WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); + if (plane->state && plane->funcs->atomic_destroy_state) + plane->funcs->atomic_destroy_state(plane, plane->state); + + kfree(plane->name); + + memset(plane, 0, sizeof(*plane)); +} +EXPORT_SYMBOL(drm_plane_cleanup); + +/** + * drm_plane_from_index - find the registered plane at an index + * @dev: DRM device + * @idx: index of registered plane to find for + * + * Given a plane index, return the registered plane from DRM device's + * list of planes with matching index. + */ +struct drm_plane * +drm_plane_from_index(struct drm_device *dev, int idx) +{ + struct drm_plane *plane; + + drm_for_each_plane(plane, dev) + if (idx == plane->index) + return plane; + + return NULL; +} +EXPORT_SYMBOL(drm_plane_from_index); + +/** + * drm_plane_force_disable - Forcibly disable a plane + * @plane: plane to disable + * + * Forces the plane to be disabled. + * + * Used when the plane's current framebuffer is destroyed, + * and when restoring fbdev mode. + */ +void drm_plane_force_disable(struct drm_plane *plane) +{ + int ret; + + if (!plane->fb) + return; + + plane->old_fb = plane->fb; + ret = plane->funcs->disable_plane(plane); + if (ret) { + DRM_ERROR("failed to disable plane with busy fb\n"); + plane->old_fb = NULL; + return; + } + /* disconnect the plane from the fb and crtc: */ + drm_framebuffer_unreference(plane->old_fb); + plane->old_fb = NULL; + plane->fb = NULL; + plane->crtc = NULL; +} +EXPORT_SYMBOL(drm_plane_force_disable); + +/** + * drm_mode_plane_set_obj_prop - set the value of a property + * @plane: drm plane object to set property value for + * @property: property to set + * @value: value the property should be set to + * + * This functions sets a given property on a given plane object. This function + * calls the driver's ->set_property callback and changes the software state of + * the property if the callback succeeds. + * + * Returns: + * Zero on success, error code on failure. + */ +int drm_mode_plane_set_obj_prop(struct drm_plane *plane, + struct drm_property *property, + uint64_t value) +{ + int ret = -EINVAL; + struct drm_mode_object *obj = &plane->base; + + if (plane->funcs->set_property) + ret = plane->funcs->set_property(plane, property, value); + if (!ret) + drm_object_property_set_value(obj, property, value); + + return ret; +} +EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); + +/** + * drm_mode_getplane_res - enumerate all plane resources + * @dev: DRM device + * @data: ioctl data + * @file_priv: DRM file info + * + * Construct a list of plane ids to return to the user. + * + * Called by the user via ioctl. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_mode_getplane_res(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_mode_get_plane_res *plane_resp = data; + struct drm_mode_config *config; + struct drm_plane *plane; + uint32_t __user *plane_ptr; + int copied = 0; + unsigned num_planes; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + config = &dev->mode_config; + + if (file_priv->universal_planes) + num_planes = config->num_total_plane; + else + num_planes = config->num_overlay_plane; + + /* + * This ioctl is called twice, once to determine how much space is + * needed, and the 2nd time to fill it. + */ + if (num_planes && + (plane_resp->count_planes >= num_planes)) { + plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; + + /* Plane lists are invariant, no locking needed. */ + drm_for_each_plane(plane, dev) { + /* + * Unless userspace set the 'universal planes' + * capability bit, only advertise overlays. + */ + if (plane->type != DRM_PLANE_TYPE_OVERLAY && + !file_priv->universal_planes) + continue; + + if (put_user(plane->base.id, plane_ptr + copied)) + return -EFAULT; + copied++; + } + } + plane_resp->count_planes = num_planes; + + return 0; +} + +/** + * drm_mode_getplane - get plane configuration + * @dev: DRM device + * @data: ioctl data + * @file_priv: DRM file info + * + * Construct a plane configuration structure to return to the user. + * + * Called by the user via ioctl. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_mode_getplane(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_mode_get_plane *plane_resp = data; + struct drm_plane *plane; + uint32_t __user *format_ptr; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + plane = drm_plane_find(dev, plane_resp->plane_id); + if (!plane) + return -ENOENT; + + drm_modeset_lock(&plane->mutex, NULL); + if (plane->crtc) + plane_resp->crtc_id = plane->crtc->base.id; + else + plane_resp->crtc_id = 0; + + if (plane->fb) + plane_resp->fb_id = plane->fb->base.id; + else + plane_resp->fb_id = 0; + drm_modeset_unlock(&plane->mutex); + + plane_resp->plane_id = plane->base.id; + plane_resp->possible_crtcs = plane->possible_crtcs; + plane_resp->gamma_size = 0; + + /* + * This ioctl is called twice, once to determine how much space is + * needed, and the 2nd time to fill it. + */ + if (plane->format_count && + (plane_resp->count_format_types >= plane->format_count)) { + format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; + if (copy_to_user(format_ptr, + plane->format_types, + sizeof(uint32_t) * plane->format_count)) { + return -EFAULT; + } + } + plane_resp->count_format_types = plane->format_count; + + return 0; +} + +/** + * drm_plane_check_pixel_format - Check if the plane supports the pixel format + * @plane: plane to check for format support + * @format: the pixel format + * + * Returns: + * Zero of @plane has @format in its list of supported pixel formats, -EINVAL + * otherwise. + */ +int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) +{ + unsigned int i; + + for (i = 0; i < plane->format_count; i++) { + if (format == plane->format_types[i]) + return 0; + } + + return -EINVAL; +} + +/* + * setplane_internal - setplane handler for internal callers + * + * Note that we assume an extra reference has already been taken on fb. If the + * update fails, this reference will be dropped before return; if it succeeds, + * the previous framebuffer (if any) will be unreferenced instead. + * + * src_{x,y,w,h} are provided in 16.16 fixed point format + */ +static int __setplane_internal(struct drm_plane *plane, + struct drm_crtc *crtc, + struct drm_framebuffer *fb, + int32_t crtc_x, int32_t crtc_y, + uint32_t crtc_w, uint32_t crtc_h, + /* src_{x,y,w,h} values are 16.16 fixed point */ + uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h) +{ + int ret = 0; + + /* No fb means shut it down */ + if (!fb) { + plane->old_fb = plane->fb; + ret = plane->funcs->disable_plane(plane); + if (!ret) { + plane->crtc = NULL; + plane->fb = NULL; + } else { + plane->old_fb = NULL; + } + goto out; + } + + /* Check whether this plane is usable on this CRTC */ + if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { + DRM_DEBUG_KMS("Invalid crtc for plane\n"); + ret = -EINVAL; + goto out; + } + + /* Check whether this plane supports the fb pixel format. */ + ret = drm_plane_check_pixel_format(plane, fb->pixel_format); + if (ret) { + char *format_name = drm_get_format_name(fb->pixel_format); + DRM_DEBUG_KMS("Invalid pixel format %s\n", format_name); + kfree(format_name); + goto out; + } + + /* Give drivers some help against integer overflows */ + if (crtc_w > INT_MAX || + crtc_x > INT_MAX - (int32_t) crtc_w || + crtc_h > INT_MAX || + crtc_y > INT_MAX - (int32_t) crtc_h) { + DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", + crtc_w, crtc_h, crtc_x, crtc_y); + ret = -ERANGE; + goto out; + } + + ret = drm_framebuffer_check_src_coords(src_x, src_y, src_w, src_h, fb); + if (ret) + goto out; + + plane->old_fb = plane->fb; + ret = plane->funcs->update_plane(plane, crtc, fb, + crtc_x, crtc_y, crtc_w, crtc_h, + src_x, src_y, src_w, src_h); + if (!ret) { + plane->crtc = crtc; + plane->fb = fb; + fb = NULL; + } else { + plane->old_fb = NULL; + } + +out: + if (fb) + drm_framebuffer_unreference(fb); + if (plane->old_fb) + drm_framebuffer_unreference(plane->old_fb); + plane->old_fb = NULL; + + return ret; +} + +static int setplane_internal(struct drm_plane *plane, + struct drm_crtc *crtc, + struct drm_framebuffer *fb, + int32_t crtc_x, int32_t crtc_y, + uint32_t crtc_w, uint32_t crtc_h, + /* src_{x,y,w,h} values are 16.16 fixed point */ + uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h) +{ + int ret; + + drm_modeset_lock_all(plane->dev); + ret = __setplane_internal(plane, crtc, fb, + crtc_x, crtc_y, crtc_w, crtc_h, + src_x, src_y, src_w, src_h); + drm_modeset_unlock_all(plane->dev); + + return ret; +} + +/** + * drm_mode_setplane - configure a plane's configuration + * @dev: DRM device + * @data: ioctl data* + * @file_priv: DRM file info + * + * Set plane configuration, including placement, fb, scaling, and other factors. + * Or pass a NULL fb to disable (planes may be disabled without providing a + * valid crtc). + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_mode_setplane(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_mode_set_plane *plane_req = data; + struct drm_plane *plane; + struct drm_crtc *crtc = NULL; + struct drm_framebuffer *fb = NULL; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + /* + * First, find the plane, crtc, and fb objects. If not available, + * we don't bother to call the driver. + */ + plane = drm_plane_find(dev, plane_req->plane_id); + if (!plane) { + DRM_DEBUG_KMS("Unknown plane ID %d\n", + plane_req->plane_id); + return -ENOENT; + } + + if (plane_req->fb_id) { + fb = drm_framebuffer_lookup(dev, plane_req->fb_id); + if (!fb) { + DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", + plane_req->fb_id); + return -ENOENT; + } + + crtc = drm_crtc_find(dev, plane_req->crtc_id); + if (!crtc) { + DRM_DEBUG_KMS("Unknown crtc ID %d\n", + plane_req->crtc_id); + return -ENOENT; + } + } + + /* + * setplane_internal will take care of deref'ing either the old or new + * framebuffer depending on success. + */ + return setplane_internal(plane, crtc, fb, + plane_req->crtc_x, plane_req->crtc_y, + plane_req->crtc_w, plane_req->crtc_h, + plane_req->src_x, plane_req->src_y, + plane_req->src_w, plane_req->src_h); +} + +/** + * drm_mode_cursor_universal - translate legacy cursor ioctl call into a + * universal plane handler call + * @crtc: crtc to update cursor for + * @req: data pointer for the ioctl + * @file_priv: drm file for the ioctl call + * + * Legacy cursor ioctl's work directly with driver buffer handles. To + * translate legacy ioctl calls into universal plane handler calls, we need to + * wrap the native buffer handle in a drm_framebuffer. + * + * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB + * buffer with a pitch of 4*width; the universal plane interface should be used + * directly in cases where the hardware can support other buffer settings and + * userspace wants to make use of these capabilities. + * + * Returns: + * Zero on success, negative errno on failure. + */ +static int drm_mode_cursor_universal(struct drm_crtc *crtc, + struct drm_mode_cursor2 *req, + struct drm_file *file_priv) +{ + struct drm_device *dev = crtc->dev; + struct drm_framebuffer *fb = NULL; + struct drm_mode_fb_cmd2 fbreq = { + .width = req->width, + .height = req->height, + .pixel_format = DRM_FORMAT_ARGB8888, + .pitches = { req->width * 4 }, + .handles = { req->handle }, + }; + int32_t crtc_x, crtc_y; + uint32_t crtc_w = 0, crtc_h = 0; + uint32_t src_w = 0, src_h = 0; + int ret = 0; + + BUG_ON(!crtc->cursor); + WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); + + /* + * Obtain fb we'll be using (either new or existing) and take an extra + * reference to it if fb != null. setplane will take care of dropping + * the reference if the plane update fails. + */ + if (req->flags & DRM_MODE_CURSOR_BO) { + if (req->handle) { + fb = drm_internal_framebuffer_create(dev, &fbreq, file_priv); + if (IS_ERR(fb)) { + DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); + return PTR_ERR(fb); + } + fb->hot_x = req->hot_x; + fb->hot_y = req->hot_y; + } else { + fb = NULL; + } + } else { + fb = crtc->cursor->fb; + if (fb) + drm_framebuffer_reference(fb); + } + + if (req->flags & DRM_MODE_CURSOR_MOVE) { + crtc_x = req->x; + crtc_y = req->y; + } else { + crtc_x = crtc->cursor_x; + crtc_y = crtc->cursor_y; + } + + if (fb) { + crtc_w = fb->width; + crtc_h = fb->height; + src_w = fb->width << 16; + src_h = fb->height << 16; + } + + /* + * setplane_internal will take care of deref'ing either the old or new + * framebuffer depending on success. + */ + ret = __setplane_internal(crtc->cursor, crtc, fb, + crtc_x, crtc_y, crtc_w, crtc_h, + 0, 0, src_w, src_h); + + /* Update successful; save new cursor position, if necessary */ + if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { + crtc->cursor_x = req->x; + crtc->cursor_y = req->y; + } + + return ret; +} + +static int drm_mode_cursor_common(struct drm_device *dev, + struct drm_mode_cursor2 *req, + struct drm_file *file_priv) +{ + struct drm_crtc *crtc; + int ret = 0; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) + return -EINVAL; + + crtc = drm_crtc_find(dev, req->crtc_id); + if (!crtc) { + DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); + return -ENOENT; + } + + /* + * If this crtc has a universal cursor plane, call that plane's update + * handler rather than using legacy cursor handlers. + */ + drm_modeset_lock_crtc(crtc, crtc->cursor); + if (crtc->cursor) { + ret = drm_mode_cursor_universal(crtc, req, file_priv); + goto out; + } + + if (req->flags & DRM_MODE_CURSOR_BO) { + if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { + ret = -ENXIO; + goto out; + } + /* Turns off the cursor if handle is 0 */ + if (crtc->funcs->cursor_set2) + ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, + req->width, req->height, req->hot_x, req->hot_y); + else + ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, + req->width, req->height); + } + + if (req->flags & DRM_MODE_CURSOR_MOVE) { + if (crtc->funcs->cursor_move) { + ret = crtc->funcs->cursor_move(crtc, req->x, req->y); + } else { + ret = -EFAULT; + goto out; + } + } +out: + drm_modeset_unlock_crtc(crtc); + + return ret; + +} + + +/** + * drm_mode_cursor_ioctl - set CRTC's cursor configuration + * @dev: drm device for the ioctl + * @data: data pointer for the ioctl + * @file_priv: drm file for the ioctl call + * + * Set the cursor configuration based on user request. + * + * Called by the user via ioctl. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_mode_cursor_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv) +{ + struct drm_mode_cursor *req = data; + struct drm_mode_cursor2 new_req; + + memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); + new_req.hot_x = new_req.hot_y = 0; + + return drm_mode_cursor_common(dev, &new_req, file_priv); +} + +/** + * drm_mode_cursor2_ioctl - set CRTC's cursor configuration + * @dev: drm device for the ioctl + * @data: data pointer for the ioctl + * @file_priv: drm file for the ioctl call + * + * Set the cursor configuration based on user request. This implements the 2nd + * version of the cursor ioctl, which allows userspace to additionally specify + * the hotspot of the pointer. + * + * Called by the user via ioctl. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_mode_cursor2_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv) +{ + struct drm_mode_cursor2 *req = data; + + return drm_mode_cursor_common(dev, req, file_priv); +} + +/** + * drm_mode_page_flip_ioctl - schedule an asynchronous fb update + * @dev: DRM device + * @data: ioctl data + * @file_priv: DRM file info + * + * This schedules an asynchronous update on a given CRTC, called page flip. + * Optionally a drm event is generated to signal the completion of the event. + * Generic drivers cannot assume that a pageflip with changed framebuffer + * properties (including driver specific metadata like tiling layout) will work, + * but some drivers support e.g. pixel format changes through the pageflip + * ioctl. + * + * Called by the user via ioctl. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_mode_page_flip_ioctl(struct drm_device *dev, + void *data, struct drm_file *file_priv) +{ + struct drm_mode_crtc_page_flip_target *page_flip = data; + struct drm_crtc *crtc; + struct drm_framebuffer *fb = NULL; + struct drm_pending_vblank_event *e = NULL; + u32 target_vblank = page_flip->sequence; + int ret = -EINVAL; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS) + return -EINVAL; + + if (page_flip->sequence != 0 && !(page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET)) + return -EINVAL; + + /* Only one of the DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags + * can be specified + */ + if ((page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) == DRM_MODE_PAGE_FLIP_TARGET) + return -EINVAL; + + if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) + return -EINVAL; + + crtc = drm_crtc_find(dev, page_flip->crtc_id); + if (!crtc) + return -ENOENT; + + drm_modeset_lock_crtc(crtc, crtc->primary); + if (crtc->primary->fb == NULL) { + /* The framebuffer is currently unbound, presumably + * due to a hotplug event, that userspace has not + * yet discovered. + */ + ret = -EBUSY; + goto out; + } + + if (crtc->funcs->page_flip == NULL) + goto out; + + fb = drm_framebuffer_lookup(dev, page_flip->fb_id); + if (!fb) { + ret = -ENOENT; + goto out; + } + + if (crtc->state) { + const struct drm_plane_state *state = crtc->primary->state; + + ret = drm_framebuffer_check_src_coords(state->src_x, + state->src_y, + state->src_w, + state->src_h, + fb); + } else { + ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); + } + if (ret) + goto out; + + if (crtc->primary->fb->pixel_format != fb->pixel_format) { + DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); + ret = -EINVAL; + goto out; + } + + if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { + e = kzalloc(sizeof *e, GFP_KERNEL); + if (!e) { + ret = -ENOMEM; + goto out; + } + e->event.base.type = DRM_EVENT_FLIP_COMPLETE; + e->event.base.length = sizeof(e->event); + e->event.user_data = page_flip->user_data; + ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base); + if (ret) { + kfree(e); + goto out; + } + } + + crtc->primary->old_fb = crtc->primary->fb; + if (crtc->funcs->page_flip_target) { + u32 current_vblank; + int r; + + r = drm_crtc_vblank_get(crtc); + if (r) + return r; + + current_vblank = drm_crtc_vblank_count(crtc); + + switch (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) { + case DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE: + if ((int)(target_vblank - current_vblank) > 1) { + DRM_DEBUG("Invalid absolute flip target %u, " + "must be <= %u\n", target_vblank, + current_vblank + 1); + drm_crtc_vblank_put(crtc); + return -EINVAL; + } + break; + case DRM_MODE_PAGE_FLIP_TARGET_RELATIVE: + if (target_vblank != 0 && target_vblank != 1) { + DRM_DEBUG("Invalid relative flip target %u, " + "must be 0 or 1\n", target_vblank); + drm_crtc_vblank_put(crtc); + return -EINVAL; + } + target_vblank += current_vblank; + break; + default: + target_vblank = current_vblank + + !(page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC); + break; + } + } else if (crtc->funcs->page_flip == NULL || + (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET)) { + return -EINVAL; + } + + if (crtc->funcs->page_flip_target) + ret = crtc->funcs->page_flip_target(crtc, fb, e, + page_flip->flags, + target_vblank); + else + ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); + if (ret) { + if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) + drm_event_cancel_free(dev, &e->base); + /* Keep the old fb, don't unref it. */ + crtc->primary->old_fb = NULL; + } else { + crtc->primary->fb = fb; + /* Unref only the old framebuffer. */ + fb = NULL; + } + +out: + if (ret && crtc->funcs->page_flip_target) + drm_crtc_vblank_put(crtc); + if (crtc->primary->old_fb) + drm_framebuffer_unreference(crtc->primary->old_fb); + crtc->primary->old_fb = NULL; + drm_modeset_unlock_crtc(crtc); + + return ret; +} |