drm: Move drm_getmap into drm_bufs.c and give it a legacy prefix

It belongs right next to the addmap and rmmap functions really. And
for OCD consistency name it drm_legacy_getmap_ioctl.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1461691808-12414-4-git-send-email-daniel.vetter@ffwll.ch

drivers/gpu/drm/drm_bufs.c

@@ -416,6 +416,58 @@ int drm_legacy_addmap_ioctl(struct drm_device *dev, void *data,
 	return 0;
 }
 
+/*
+ * Get a mapping information.
+ *
+ * \param inode device inode.
+ * \param file_priv DRM file private.
+ * \param cmd command.
+ * \param arg user argument, pointing to a drm_map structure.
+ *
+ * \return zero on success or a negative number on failure.
+ *
+ * Searches for the mapping with the specified offset and copies its information
+ * into userspace
+ */
+int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data,
+			    struct drm_file *file_priv)
+{
+	struct drm_map *map = data;
+	struct drm_map_list *r_list = NULL;
+	struct list_head *list;
+	int idx;
+	int i;
+
+	idx = map->offset;
+	if (idx < 0)
+		return -EINVAL;
+
+	i = 0;
+	mutex_lock(&dev->struct_mutex);
+	list_for_each(list, &dev->maplist) {
+		if (i == idx) {
+			r_list = list_entry(list, struct drm_map_list, head);
+			break;
+		}
+		i++;
+	}
+	if (!r_list || !r_list->map) {
+		mutex_unlock(&dev->struct_mutex);
+		return -EINVAL;
+	}
+
+	map->offset = r_list->map->offset;
+	map->size = r_list->map->size;
+	map->type = r_list->map->type;
+	map->flags = r_list->map->flags;
+	map->handle = (void *)(unsigned long) r_list->user_token;
+	map->mtrr = arch_phys_wc_index(r_list->map->mtrr);
+
+	mutex_unlock(&dev->struct_mutex);
+
+	return 0;
+}
+
 /**
  * Remove a map private from list and deallocate resources if the mapping
  * isn't in use.

drivers/gpu/drm/drm_ioctl.c

@@ -149,58 +149,6 @@ static int drm_set_busid(struct drm_device *dev, struct drm_file *file_priv)
 	return 0;
 }
 
-/*
- * Get a mapping information.
- *
- * \param inode device inode.
- * \param file_priv DRM file private.
- * \param cmd command.
- * \param arg user argument, pointing to a drm_map structure.
- *
- * \return zero on success or a negative number on failure.
- *
- * Searches for the mapping with the specified offset and copies its information
- * into userspace
- */
-static int drm_getmap(struct drm_device *dev, void *data,
-	       struct drm_file *file_priv)
-{
-	struct drm_map *map = data;
-	struct drm_map_list *r_list = NULL;
-	struct list_head *list;
-	int idx;
-	int i;
-
-	idx = map->offset;
-	if (idx < 0)
-		return -EINVAL;
-
-	i = 0;
-	mutex_lock(&dev->struct_mutex);
-	list_for_each(list, &dev->maplist) {
-		if (i == idx) {
-			r_list = list_entry(list, struct drm_map_list, head);
-			break;
-		}
-		i++;
-	}
-	if (!r_list || !r_list->map) {
-		mutex_unlock(&dev->struct_mutex);
-		return -EINVAL;
-	}
-
-	map->offset = r_list->map->offset;
-	map->size = r_list->map->size;
-	map->type = r_list->map->type;
-	map->flags = r_list->map->flags;
-	map->handle = (void *)(unsigned long) r_list->user_token;
-	map->mtrr = arch_phys_wc_index(r_list->map->mtrr);
-
-	mutex_unlock(&dev->struct_mutex);
-
-	return 0;
-}
-
 /*
  * Get client information.
  *
@@ -558,7 +506,7 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
 	DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
-	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_legacy_getmap_ioctl, DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED|DRM_RENDER_ALLOW),

drivers/gpu/drm/drm_legacy.h

@@ -63,6 +63,8 @@ int drm_legacy_getsareactx(struct drm_device *d, void *v, struct drm_file *f);
 
 #define DRM_MAP_HASH_OFFSET 0x10000000
 
+int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data,
+			    struct drm_file *file_priv);
 int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
 int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
 int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f);