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Revert "drm/panfrost: Use drm_gem_map_offset()" 

This reverts commit 583bbf4613.

Turns out we need mmap to work on imported BOs even if the current code
is buggy.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190807145253.2037-3-sean@poorly.run
This commit is contained in:
Rob Herring 2019-08-07 10:52:48 -04:00 committed by Sean Paul
parent 0a0b65d8ea
commit e6be0a9913
1 changed files with 14 additions and 2 deletions
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16
drivers/gpu/drm/panfrost/panfrost_drv.c
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@ -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,