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drm/nouveau: Add size to vbios.rom file in debugfs 

With this, nvbios /sys/kernel/debug/dri/*/vbios.rom now works!

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Lyude Paul 2018-09-19 13:13:52 -04:00 committed by Ben Skeggs
parent 67287964da
commit 6f5521da02
1 changed files with 19 additions and 4 deletions
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23
drivers/gpu/drm/nouveau/nouveau_debugfs.c
View File

@ -220,8 +220,9 @@ static const struct nouveau_debugfs_files {
int
nouveau_drm_debugfs_init(struct drm_minor *minor)
{
struct nouveau_drm *drm = nouveau_drm(minor->dev);
struct dentry *dentry;
int i;
int i, ret;
for (i = 0; i < ARRAY_SIZE(nouveau_debugfs_files); i++) {
dentry = debugfs_create_file(nouveau_debugfs_files[i].name,
@ -232,9 +233,23 @@ nouveau_drm_debugfs_init(struct drm_minor *minor)
return -ENOMEM;
}
return drm_debugfs_create_files(nouveau_debugfs_list,
NOUVEAU_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
ret = drm_debugfs_create_files(nouveau_debugfs_list,
NOUVEAU_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
if (ret)
return ret;
/* Set the size of the vbios since we know it, and it's confusing to
* userspace if it wants to seek() but the file has a length of 0
*/
dentry = debugfs_lookup("vbios.rom", minor->debugfs_root);
if (!dentry)
return 0;
d_inode(dentry)->i_size = drm->vbios.length;
dput(dentry);
return 0;
}
int