Revert "Revert "drm/panfrost: Use drm_gem_map_offset()""

This reverts commit be855382bacb5ccfd24f9be6098d87acf4cfbb15.

Mandatory review was missing from this patch.

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190807142101.251400-3-sean@poorly.run

diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c
index b187daa4da856661b808981e310327241df0769b..b2e325e270b7adbab8a62cee64ecc1086823e748 100644 (file)
--- a/drivers/gpu/drm/panfrost/panfrost_drv.c
+++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
@@ -291,26 +291,14 @@ static int panfrost_ioctl_mmap_bo(struct drm_device *dev, void *data,
                      struct drm_file *file_priv)
 {
        struct drm_panfrost_mmap_bo *args = data;
-       struct drm_gem_object *gem_obj;
-       int ret;
 
        if (args->flags != 0) {
                DRM_INFO("unknown mmap_bo flags: %d\n", args->flags);
                return -EINVAL;
        }
 
-       gem_obj = drm_gem_object_lookup(file_priv, args->handle);
-       if (!gem_obj) {
-               DRM_DEBUG("Failed to look up GEM BO %d\n", args->handle);
-               return -ENOENT;
-       }
-
-       ret = drm_gem_create_mmap_offset(gem_obj);
-       if (ret == 0)
-               args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node);
-       drm_gem_object_put_unlocked(gem_obj);
-
-       return ret;
+       return drm_gem_map_offset(file_priv, dev, args->handle,
+                                      &args->offset);
 }
 
 static int panfrost_ioctl_get_bo_offset(struct drm_device *dev, void *data,