An object property is an id (idr) for a drm mode object. This will allow a property to be used set/get a framebuffer, CRTC, etc. --- drivers/gpu/drm/drm_crtc.c | 34 ++++++++++++++++++++++++++++++---- include/drm/drm_crtc.h | 10 ++++++++++ include/uapi/drm/drm_mode.h | 1 + 3 files changed, 41 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 55f37db..4d33816 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -2828,6 +2828,8 @@ struct drm_property *drm_property_create(struct drm_device *dev, int flags, if (!property) return NULL;
+ property->dev = dev; + if (num_values) { property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); if (!property->values) @@ -2931,6 +2933,23 @@ struct drm_property *drm_property_create_range(struct drm_device *dev, int flags } EXPORT_SYMBOL(drm_property_create_range);
+struct drm_property *drm_property_create_object(struct drm_device *dev, + int flags, const char *name, uint32_t type) +{ + struct drm_property *property; + + flags |= DRM_MODE_PROP_OBJECT; + + property = drm_property_create(dev, flags, name, 1); + if (!property) + return NULL; + + property->values[0] = type; + + return property; +} +EXPORT_SYMBOL(drm_property_create_object); + int drm_property_add_enum(struct drm_property *property, int index, uint64_t value, const char *name) { @@ -3259,6 +3278,11 @@ static bool drm_property_change_is_valid(struct drm_property *property, } else if (property->flags & DRM_MODE_PROP_BLOB) { /* Only the driver knows */ return true; + } else if (property->flags & DRM_MODE_PROP_OBJECT) { + /* a zero value for an object property translates to null: */ + if (value == 0) + return true; + return drm_property_get_obj(property, value) != NULL; } else { int i; for (i = 0; i < property->num_values; i++) @@ -3335,9 +3359,9 @@ static int drm_mode_plane_set_obj_prop(struct drm_plane *plane, return ret; }
-static int drm_mode_set_obj_prop(struct drm_device *dev, - struct drm_mode_object *obj, void *state, - struct drm_property *property, uint64_t value, void *blob_data) +static int drm_mode_set_obj_prop(struct drm_mode_object *obj, + void *state, struct drm_property *property, + uint64_t value, void *blob_data) { if (drm_property_change_is_valid(property, value)) { switch (obj->type) { @@ -3351,6 +3375,8 @@ static int drm_mode_set_obj_prop(struct drm_device *dev, return drm_mode_plane_set_obj_prop(obj_to_plane(obj), state, property, value, blob_data); } + } else { + DRM_DEBUG("invalid value: %s = %llx\n", property->name, value); }
return -EINVAL; @@ -3385,7 +3411,7 @@ static int drm_mode_set_obj_prop_id(struct drm_device *dev, void *state, return -ENOENT; property = obj_to_property(prop_obj);
- return drm_mode_set_obj_prop(dev, arg_obj, state, property, + return drm_mode_set_obj_prop(arg_obj, state, property, value, blob_data); }
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 3650254..4141074 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -306,6 +306,7 @@ struct drm_property { char name[DRM_PROP_NAME_LEN]; uint32_t num_values; uint64_t *values; + struct drm_device *dev;
struct list_head enum_blob_list; }; @@ -1041,6 +1042,8 @@ struct drm_property *drm_property_create_bitmask(struct drm_device *dev, struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, const char *name, uint64_t min, uint64_t max); +struct drm_property *drm_property_create_object(struct drm_device *dev, + int flags, const char *name, uint32_t type); extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property); extern int drm_property_add_enum(struct drm_property *property, int index, uint64_t value, const char *name); @@ -1059,6 +1062,13 @@ extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, int gamma_size); extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type); + +static inline struct drm_mode_object * +drm_property_get_obj(struct drm_property *property, uint64_t value) +{ + return drm_mode_object_find(property->dev, value, property->values[0]); +} + /* IOCTLs */ extern int drm_mode_getresources(struct drm_device *dev, void *data, struct drm_file *file_priv); diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index f104c26..73cfd1e 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -250,6 +250,7 @@ struct drm_mode_get_connector { #define DRM_MODE_PROP_ENUM (1<<3) /* enumerated type with text strings */ #define DRM_MODE_PROP_BLOB (1<<4) #define DRM_MODE_PROP_BITMASK (1<<5) /* bitmask of enumerated types */ +#define DRM_MODE_PROP_OBJECT (1<<6) /* drm mode object */
struct drm_mode_property_enum { __u64 value;