@@ -3911,7 +3911,8 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
return -EINVAL;
crtc = obj_to_crtc(obj);
- state = dev->driver->atomic_begin(dev, page_flip->flags);
+ state = dev->driver->atomic_begin(dev,
+ page_flip->flags | DRM_MODE_ATOMIC_NONBLOCK);
if (IS_ERR(state))
return PTR_ERR(state);
@@ -4324,3 +4325,157 @@ void drm_mode_config_cleanup(struct drm_device *dev)
idr_destroy(&dev->mode_config.crtc_idr);
}
EXPORT_SYMBOL(drm_mode_config_cleanup);
+
+int drm_mode_atomic_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_atomic *arg = data;
+ uint32_t __user *objs_ptr = (uint32_t __user *)(unsigned long)(arg->objs_ptr);
+ uint32_t __user *count_props_ptr = (uint32_t __user *)(unsigned long)(arg->count_props_ptr);
+ uint32_t __user *props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
+ uint64_t __user *prop_values_ptr = (uint64_t __user *)(unsigned long)(arg->prop_values_ptr);
+ uint64_t __user *blob_values_ptr = (uint64_t __user *)(unsigned long)(arg->blob_values_ptr);
+ unsigned int copied_objs = 0;
+ unsigned int copied_props = 0;
+ unsigned int copied_blobs = 0;
+ void *state;
+ int ret = 0;
+ unsigned int i, j;
+
+ if (arg->flags & ~DRM_MODE_ATOMIC_FLAGS)
+ return -EINVAL;
+
+ /* can't test and expect an event at the same time. */
+ if ((arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) &&
+ (arg->flags & DRM_MODE_PAGE_FLIP_EVENT))
+ return -EINVAL;
+
+ state = dev->driver->atomic_begin(dev, arg->flags);
+ if (IS_ERR(state)) {
+ ret = PTR_ERR(state);
+ goto out;
+ }
+
+ for (i = 0; i < arg->count_objs; i++) {
+ uint32_t obj_id, count_props;
+ struct drm_mode_object *obj;
+
+ if (get_user(obj_id, objs_ptr + copied_objs)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ obj = drm_mode_object_find(dev, obj_id, DRM_MODE_OBJECT_ANY);
+ if (!obj || !obj->properties) {
+ ret = -ENOENT;
+ goto out;
+ }
+
+ if ((obj->type == DRM_MODE_OBJECT_CRTC) &&
+ (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) {
+ struct drm_pending_vblank_event *e =
+ create_vblank_event(dev, file_priv, arg->user_data);
+ if (!e) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ ret = dev->driver->atomic_set_event(dev, state, obj, e);
+ if (ret) {
+ destroy_vblank_event(dev, file_priv, e);
+ goto out;
+ }
+ }
+
+ if (get_user(count_props, count_props_ptr + copied_objs)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ copied_objs++;
+
+ for (j = 0; j < count_props; j++) {
+ uint32_t prop_id;
+ uint64_t prop_value;
+ struct drm_mode_object *prop_obj;
+ struct drm_property *prop;
+ void *blob_data = NULL;
+
+ if (get_user(prop_id, props_ptr + copied_props)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ if (!object_has_prop(obj, prop_id)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ prop_obj = drm_mode_object_find(dev, prop_id,
+ DRM_MODE_OBJECT_PROPERTY);
+ if (!prop_obj) {
+ ret = -ENOENT;
+ goto out;
+ }
+ prop = obj_to_property(prop_obj);
+
+ if (get_user(prop_value, prop_values_ptr + copied_props)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ if (!drm_property_change_is_valid(prop, prop_value)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if ((prop->flags & DRM_MODE_PROP_BLOB) && prop_value) {
+ uint64_t blob_ptr;
+
+ if (get_user(blob_ptr, blob_values_ptr + copied_blobs)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ blob_data = kmalloc(prop_value, GFP_KERNEL);
+ if (!blob_data) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ if (copy_from_user(blob_data, (void __user *)(unsigned long)blob_ptr, prop_value)) {
+ kfree(blob_data);
+ ret = -EFAULT;
+ goto out;
+ }
+ }
+
+ /* User space sends the blob pointer even if we
+ * don't use it (length==0).
+ */
+ if (prop->flags & DRM_MODE_PROP_BLOB)
+ copied_blobs++;
+
+ /* The driver will be in charge of blob_data from now on. */
+ ret = drm_mode_set_obj_prop(obj, state, prop,
+ prop_value, blob_data);
+ if (ret)
+ goto out;
+
+ copied_props++;
+ }
+ }
+
+ ret = dev->driver->atomic_check(dev, state);
+ if (ret)
+ goto out;
+
+ if (arg->flags & DRM_MODE_ATOMIC_TEST_ONLY)
+ goto out;
+
+ ret = dev->driver->atomic_commit(dev, state);
+
+ out:
+ dev->driver->atomic_end(dev, state);
+
+ return ret;
+}
@@ -166,6 +166,7 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_GETPROPERTIES, drm_mode_obj_get_properties_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_SETPROPERTY, drm_mode_obj_set_property_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR2, drm_mode_cursor2_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATOMIC, drm_mode_atomic_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
};
#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls )
@@ -1158,6 +1158,12 @@ struct drm_pending_vblank_event {
struct drm_event_vblank event;
};
+struct drm_pending_atomic_event {
+ struct drm_pending_event base;
+ int pipe;
+ struct drm_event_atomic event;
+};
+
/**
* DRM device structure. This structure represent a complete card that
* may contain multiple heads.
@@ -1318,6 +1318,8 @@ extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
+extern int drm_mode_atomic_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv);
extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
int *bpp);
@@ -733,6 +733,7 @@ struct drm_prime_handle {
#define DRM_IOCTL_MODE_OBJ_GETPROPERTIES DRM_IOWR(0xB9, struct drm_mode_obj_get_properties)
#define DRM_IOCTL_MODE_OBJ_SETPROPERTY DRM_IOWR(0xBA, struct drm_mode_obj_set_property)
#define DRM_IOCTL_MODE_CURSOR2 DRM_IOWR(0xBB, struct drm_mode_cursor2)
+#define DRM_IOCTL_MODE_ATOMIC DRM_IOWR(0xBC, struct drm_mode_atomic)
/**
* Device specific ioctls should only be in their respective headers
@@ -774,6 +775,17 @@ struct drm_event_vblank {
__u32 reserved;
};
+struct drm_event_atomic {
+ struct drm_event base;
+ __u64 user_data;
+ __u32 tv_sec;
+ __u32 tv_usec;
+ __u32 sequence;
+ __u32 obj_id;
+ __u32 old_fb_id;
+ __u32 reserved;
+};
+
#define DRM_CAP_DUMB_BUFFER 0x1
#define DRM_CAP_VBLANK_HIGH_CRTC 0x2
#define DRM_CAP_DUMB_PREFERRED_DEPTH 0x3
@@ -489,4 +489,26 @@ struct drm_mode_destroy_dumb {
uint32_t handle;
};
+/* page-flip flags are valid, plus: */
+#define DRM_MODE_ATOMIC_TEST_ONLY 0x0100
+#define DRM_MODE_ATOMIC_NONBLOCK 0x0200
+
+#define DRM_MODE_ATOMIC_FLAGS (\
+ DRM_MODE_PAGE_FLIP_EVENT |\
+ DRM_MODE_PAGE_FLIP_ASYNC |\
+ DRM_MODE_ATOMIC_TEST_ONLY |\
+ DRM_MODE_ATOMIC_NONBLOCK)
+
+/* FIXME come up with some sane error reporting mechanism? */
+struct drm_mode_atomic {
+ __u32 flags;
+ __u32 count_objs;
+ __u64 objs_ptr;
+ __u64 count_props_ptr;
+ __u64 props_ptr;
+ __u64 prop_values_ptr;
+ __u64 blob_values_ptr;
+ __u64 user_data;
+};
+
#endif