Re: [PATCH 1/4] drm/amd/amdgpu: Fold TTM debugfs entries into array

[Tom St Denis <tom.stdenis@xxxxxxx>]

On 18/09/17 08:48 AM, Christian König wrote:
> Am 18.09.2017 um 14:35 schrieb Tom St Denis:
> > Signed-off-by: Tom St Denis <tom.stdenis@xxxxxxx>
> > ---
> >   drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 53 
> > ++++++++++++++++++---------------
> >   drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h |  4 +--
> >   2 files changed, 31 insertions(+), 26 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c 
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> > index 8ee16dfdb8af..7848ffa99eb4 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> > @@ -1809,6 +1809,18 @@ static const struct file_operations 
> > amdgpu_ttm_gtt_fops = {
> >   #endif
> > +
> > +
> > +static const struct {
> > +    char *name;
> > +    const struct file_operations *fops;
> > +} ttm_debugfs_entries[] = {
> > +    { "amdgpu_vram", &amdgpu_ttm_vram_fops },
> > +#ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS
> > +    { "amdgpu_gtt", &amdgpu_ttm_gtt_fops },
> > +#endif
> > +};
> > +
> >   #endif
> >   static int amdgpu_ttm_debugfs_init(struct amdgpu_device *adev)
> > @@ -1819,22 +1831,21 @@ static int amdgpu_ttm_debugfs_init(struct 
> > amdgpu_device *adev)
> >       struct drm_minor *minor = adev->ddev->primary;
> >       struct dentry *ent, *root = minor->debugfs_root;
> > -    ent = debugfs_create_file("amdgpu_vram", S_IFREG | S_IRUGO, root,
> > -                  adev, &amdgpu_ttm_vram_fops);
> > -    if (IS_ERR(ent))
> > -        return PTR_ERR(ent);
> > -    i_size_write(ent->d_inode, adev->mc.mc_vram_size);
> > -    adev->mman.vram = ent;
> > -
> > -#ifdef CONFIG_DRM_AMDGPU_GART_DEBUGFS
> > -    ent = debugfs_create_file("amdgpu_gtt", S_IFREG | S_IRUGO, root,
> > -                  adev, &amdgpu_ttm_gtt_fops);
> > -    if (IS_ERR(ent))
> > -        return PTR_ERR(ent);
> > -    i_size_write(ent->d_inode, adev->mc.gart_size);
> > -    adev->mman.gtt = ent;
> > +    for (count = 0; count < ARRAY_SIZE(ttm_debugfs_entries); count++) {
> > +        ent = debugfs_create_file(
> > +                ttm_debugfs_entries[count].name,
> > +                S_IFREG | S_IRUGO, root,
> > +                adev,
> > +                ttm_debugfs_entries[count].fops);
> > +        if (IS_ERR(ent))
> > +            return PTR_ERR(ent);
> > +        if (!strcmp(ttm_debugfs_entries[count].name, "amdgpu_vram"))
> > +            i_size_write(ent->d_inode, adev->mc.mc_vram_size);
> > +        else if (!strcmp(ttm_debugfs_entries[count].name, "amdgpu_gtt"))
> > +            i_size_write(ent->d_inode, adev->mc.gart_size);
>
> Uff, string compare? That is screaming break me by typo.
>
> Maybe but the domain type into the struct as well?
>
> Apart from that looks good to me,


Sure, a quick grep didn't turn up any defines/enums for VRAM vs GTT 
though so just make some up?

Tom
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