Re: [PATCH v3 5/7] drm/etnaviv: Switch to fdinfo helper

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On Tue, Apr 11, 2023 at 03:56:10PM -0700, Rob Clark wrote:
> From: Rob Clark <robdclark@xxxxxxxxxxxx>
> 
> Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>

You're on an old tree, this got reverted. But I'm kinda wondering whether
another patch on top shouldn't just includ the drm_show_fdinfo in
DRM_GEM_FOPS macro ... There's really no good reasons for drivers to not
have this I think?
-Daniel

> ---
>  drivers/gpu/drm/etnaviv/etnaviv_drv.c | 10 ++++------
>  1 file changed, 4 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> index 44ca803237a5..170000d6af94 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> @@ -476,9 +476,8 @@ static const struct drm_ioctl_desc etnaviv_ioctls[] = {
>  	ETNA_IOCTL(PM_QUERY_SIG, pm_query_sig, DRM_RENDER_ALLOW),
>  };
>  
> -static void etnaviv_fop_show_fdinfo(struct seq_file *m, struct file *f)
> +static void etnaviv_fop_show_fdinfo(struct drm_printer *p, struct drm_file *file)
>  {
> -	struct drm_file *file = f->private_data;
>  	struct drm_device *dev = file->minor->dev;
>  	struct etnaviv_drm_private *priv = dev->dev_private;
>  	struct etnaviv_file_private *ctx = file->driver_priv;
> @@ -487,8 +486,6 @@ static void etnaviv_fop_show_fdinfo(struct seq_file *m, struct file *f)
>  	 * For a description of the text output format used here, see
>  	 * Documentation/gpu/drm-usage-stats.rst.
>  	 */
> -	seq_printf(m, "drm-driver:\t%s\n", dev->driver->name);
> -	seq_printf(m, "drm-client-id:\t%u\n", ctx->id);
>  
>  	for (int i = 0; i < ETNA_MAX_PIPES; i++) {
>  		struct etnaviv_gpu *gpu = priv->gpu[i];
> @@ -507,7 +504,7 @@ static void etnaviv_fop_show_fdinfo(struct seq_file *m, struct file *f)
>  			cur = snprintf(engine + cur, sizeof(engine) - cur,
>  				       "%sNN", cur ? "/" : "");
>  
> -		seq_printf(m, "drm-engine-%s:\t%llu ns\n", engine,
> +		drm_printf(p, "drm-engine-%s:\t%llu ns\n", engine,
>  			   ctx->sched_entity[i].elapsed_ns);
>  	}
>  }
> @@ -515,7 +512,7 @@ static void etnaviv_fop_show_fdinfo(struct seq_file *m, struct file *f)
>  static const struct file_operations fops = {
>  	.owner = THIS_MODULE,
>  	DRM_GEM_FOPS,
> -	.show_fdinfo = etnaviv_fop_show_fdinfo,
> +	.show_fdinfo = drm_fop_show_fdinfo,
>  };
>  
>  static const struct drm_driver etnaviv_drm_driver = {
> @@ -529,6 +526,7 @@ static const struct drm_driver etnaviv_drm_driver = {
>  #ifdef CONFIG_DEBUG_FS
>  	.debugfs_init       = etnaviv_debugfs_init,
>  #endif
> +	.show_fdinfo        = etnaviv_fop_show_fdinfo,
>  	.ioctls             = etnaviv_ioctls,
>  	.num_ioctls         = DRM_ETNAVIV_NUM_IOCTLS,
>  	.fops               = &fops,
> -- 
> 2.39.2
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch



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