/**
* drm_crtc_init_with_planes - Initialise a new CRTC object with
* specified primary and cursor planes.
* @dev: DRM device
* @crtc: CRTC object to init
* @primary: Primary plane for CRTC
* @cursor: Cursor plane for CRTC
* @funcs: callbacks for the new CRTC
* @name: printf style format string for the CRTC name, or NULL for default name
*
* Inits a new object created as base part of a driver crtc object. Drivers
* should use this function instead of drm_crtc_init(), which is only provided
* for backwards compatibility with drivers which do not yet support universal
* planes). For really simple hardware which has only 1 plane look at
* drm_simple_display_pipe_init() instead.
*
* Returns:
* Zero on success, error code on failure.
*/
int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
struct drm_plane *primary,
struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs,
const char *name, ...)
{
struct drm_mode_config *config = &dev->mode_config;
int ret;
WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY);
WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR);
/* crtc index is used with 32bit bitmasks */
if (WARN_ON(config->num_crtc >= 32))
return -EINVAL;
WARN_ON(drm_drv_uses_atomic_modeset(dev) &&
(!funcs->atomic_destroy_state ||
!funcs->atomic_duplicate_state));
crtc->dev = dev;
crtc->funcs = funcs;
INIT_LIST_HEAD(&crtc->commit_list);
spin_lock_init(&crtc->commit_lock);
drm_modeset_lock_init(&crtc->mutex);
ret = drm_mode_object_add(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
if (ret)
return ret;
if (name) {
va_list ap;
va_start(ap, name);
crtc->name = kvasprintf(GFP_KERNEL, name, ap);
va_end(ap);
} else {
crtc->name = kasprintf(GFP_KERNEL, "crtc-%d",
drm_num_crtcs(dev));
}
if (!crtc->name) {
drm_mode_object_unregister(dev, &crtc->base);
return -ENOMEM;
}
crtc->fence_context = dma_fence_context_alloc(1);
spin_lock_init(&crtc->fence_lock);
snprintf(crtc->timeline_name, sizeof(crtc->timeline_name),
"CRTC:%d-%s", crtc->base.id, crtc->name);
crtc->base.properties = &crtc->properties;
list_add_tail(&crtc->head, &config->crtc_list);
crtc->index = config->num_crtc++;
crtc->primary = primary;
crtc->cursor = cursor;
if (primary && !primary->possible_crtcs)
primary->possible_crtcs = drm_crtc_mask(crtc);
if (cursor && !cursor->possible_crtcs)
cursor->possible_crtcs = drm_crtc_mask(crtc);
ret = drm_crtc_crc_init(crtc);
if (ret) {
drm_mode_object_unregister(dev, &crtc->base);
return ret;
}
if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
drm_object_attach_property(&crtc->base, config->prop_active, 0);
drm_object_attach_property(&crtc->base, config->prop_mode_id, 0);
drm_object_attach_property(&crtc->base,
config->prop_out_fence_ptr, 0);
drm_object_attach_property(&crtc->base,
config->prop_vrr_enabled, 0);
}
return 0;
}
/**
* 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,
uint32_t 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_add(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_in_fence_fd, -1);
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;
}
/**
* 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
* @format_modifiers: array of struct drm_format modifiers terminated by
* DRM_FORMAT_MOD_INVALID
* @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,
uint32_t possible_crtcs,
const struct drm_plane_funcs *funcs,
const uint32_t *formats, unsigned int format_count,
const uint64_t *format_modifiers,
enum drm_plane_type type,
const char *name, ...)
{
struct drm_mode_config *config = &dev->mode_config;
unsigned int format_modifier_count = 0;
int ret;
/* plane index is used with 32bit bitmasks */
if (WARN_ON(config->num_total_plane >= 32))
return -EINVAL;
WARN_ON(drm_drv_uses_atomic_modeset(dev) &&
(!funcs->atomic_destroy_state ||
!funcs->atomic_duplicate_state));
ret = drm_mode_object_add(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;
}
/*
* First driver to need more than 64 formats needs to fix this. Each
* format is encoded as a bit and the current code only supports a u64.
*/
if (WARN_ON(format_count > 64))
return -EINVAL;
if (format_modifiers) {
const uint64_t *temp_modifiers = format_modifiers;
while (*temp_modifiers++ != DRM_FORMAT_MOD_INVALID)
format_modifier_count++;
}
plane->modifier_count = format_modifier_count;
plane->modifiers = kmalloc_array(format_modifier_count,
sizeof(format_modifiers[0]),
GFP_KERNEL);
if (format_modifier_count && !plane->modifiers) {
DRM_DEBUG_KMS("out of memory when allocating plane\n");
kfree(plane->format_types);
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);
kfree(plane->modifiers);
drm_mode_object_unregister(dev, &plane->base);
return -ENOMEM;
}
memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
plane->format_count = format_count;
memcpy(plane->modifiers, format_modifiers,
format_modifier_count * sizeof(format_modifiers[0]));
plane->possible_crtcs = possible_crtcs;
plane->type = type;
list_add_tail(&plane->head, &config->plane_list);
plane->index = config->num_total_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_in_fence_fd, -1);
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);
}
if (config->allow_fb_modifiers)
create_in_format_blob(dev, plane);
return 0;
}
