[PATCH] drm/amdgpu: print DMA-buf status in debugfs

[Deucher, Alexander]

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

________________________________
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Christian König <ckoenig.leichtzumerken at gmail.com>
Sent: Wednesday, April 18, 2018 6:13:09 AM
To: amd-gfx at lists.freedesktop.org
Subject: Re: [PATCH] drm/amdgpu: print DMA-buf status in debugfs

Ping? Could anybody review that?

Thanks,
Christian.

Am 11.04.2018 um 15:09 schrieb Christian König:
> Just note if a BO was imported/exported.
>
> Signed-off-by: Christian König <christian.koenig at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 11 +++++++++++
>   1 file changed, 11 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> index 28c2706e48d7..93d3f333444b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> @@ -765,6 +765,8 @@ static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
>        struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
>        struct seq_file *m = data;
>
> +     struct dma_buf_attachment *attachment;
> +     struct dma_buf *dma_buf;
>        unsigned domain;
>        const char *placement;
>        unsigned pin_count;
> @@ -793,6 +795,15 @@ static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
>        pin_count = READ_ONCE(bo->pin_count);
>        if (pin_count)
>                seq_printf(m, " pin count %d", pin_count);
> +
> +     dma_buf = READ_ONCE(bo->gem_base.dma_buf);
> +     attachment = READ_ONCE(bo->gem_base.import_attach);
> +
> +     if (attachment)
> +             seq_printf(m, " imported from %p", dma_buf);
> +     else if (dma_buf)
> +             seq_printf(m, " exported as %p", dma_buf);
> +
>        seq_printf(m, "\n");
>
>        return 0;

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