linux-kernel - Re: [PATCH] drm/v3d: Fix BO stats accounting for dma-buf-imported buffers.

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Date:   Fri, 8 Feb 2019 00:27:17 +0100
From:   Daniel Vetter <daniel@...ll.ch>
To:     Eric Anholt <eric@...olt.net>
Cc:     dri-devel@...ts.freedesktop.org, david.emett@...adcom.com,
        thomas.spurden@...adcom.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/v3d: Fix BO stats accounting for dma-buf-imported
 buffers.

On Thu, Feb 07, 2019 at 03:26:13PM -0800, Eric Anholt wrote:
> We always decrement at GEM free, so make sure we increment at GEM
> creation for dma-bufs.

Indeed. Reviewed-by: Daniel Vetter <daniel.vetter@...ll.ch>

> 
> Signed-off-by: Eric Anholt <eric@...olt.net>
> ---
>  drivers/gpu/drm/v3d/v3d_bo.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/gpu/drm/v3d/v3d_bo.c b/drivers/gpu/drm/v3d/v3d_bo.c
> index a08766d39eab..b1766f096c4b 100644
> --- a/drivers/gpu/drm/v3d/v3d_bo.c
> +++ b/drivers/gpu/drm/v3d/v3d_bo.c
> @@ -282,6 +282,7 @@ v3d_prime_import_sg_table(struct drm_device *dev,
>  			  struct dma_buf_attachment *attach,
>  			  struct sg_table *sgt)
>  {
> +	struct v3d_dev *v3d = to_v3d_dev(dev);
>  	struct drm_gem_object *obj;
>  	struct v3d_bo *bo;
>  
> @@ -296,6 +297,11 @@ v3d_prime_import_sg_table(struct drm_device *dev,
>  	obj->import_attach = attach;
>  	v3d_bo_get_pages(bo);
>  
> +	mutex_lock(&v3d->bo_lock);
> +	v3d->bo_stats.num_allocated++;
> +	v3d->bo_stats.pages_allocated += obj->size >> PAGE_SHIFT;
> +	mutex_unlock(&v3d->bo_lock);
> +
>  	v3d_mmu_insert_ptes(bo);
>  
>  	return obj;
> -- 
> 2.20.0.rc1
> 
> _______________________________________________
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> dri-devel@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

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

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