From e6be0a9913c817689b61a7dc36550b80a3b27f62 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Wed, 7 Aug 2019 10:52:48 -0400 Subject: [PATCH] Revert "drm/panfrost: Use drm_gem_map_offset()" This reverts commit 583bbf46133c726bae277e8f4e32bfba2a528c7f. Turns out we need mmap to work on imported BOs even if the current code is buggy. Signed-off-by: Rob Herring Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20190807145253.2037-3-sean@poorly.run --- drivers/gpu/drm/panfrost/panfrost_drv.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c index b2e325e270b7..b187daa4da85 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -291,14 +291,26 @@ 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; } - return drm_gem_map_offset(file_priv, dev, args->handle, - &args->offset); + 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; } static int panfrost_ioctl_get_bo_offset(struct drm_device *dev, void *data,