diff options
| author | Lyude Paul <lyude@redhat.com> | 2018-09-19 13:13:52 -0400 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2018-12-11 15:37:09 +1000 |
| commit | 6f5521da028c7905ce292a60184ffd64abddad8e (patch) | |
| tree | 584e398c1a74059465075f7cfdbad230d5907e94 | |
| parent | 67287964dae3aae65ec006f15c094936f0146812 (diff) | |
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>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_debugfs.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c index 7379c20584a2..88a52f6b39fe 100644 --- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c +++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c @@ -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 |