[PATCH 2/2] drm/amdgpu: export test ring debugfs interface

[Deucher, Alexander]

> -----Original Message-----
> From: Huang Rui [mailto:ray.huang at amd.com]
> Sent: Wednesday, May 10, 2017 10:29 PM
> To: amd-gfx at lists.freedesktop.org; Deucher, Alexander; Koenig, Christian
> Cc: Zhou, David(ChunMing); Wang, Ken; Huan, Alvin; Huang, Ray
> Subject: [PATCH 2/2] drm/amdgpu: export test ring debugfs interface
> 
> Signed-off-by: Huang Rui <ray.huang at amd.com>

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

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 44
> ++++++++++++++++++++++++++++--
>  1 file changed, 42 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> index 7becf11..3637396 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> @@ -3625,14 +3625,54 @@ static int amdgpu_debugfs_test_ib(struct
> seq_file *m, void *data)
>  	return 0;
>  }
> 
> +static int amdgpu_ring_tests(struct amdgpu_device *adev)
> +{
> +	unsigned i;
> +	int r = 0;
> +
> +	for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
> +		struct amdgpu_ring *ring = adev->rings[i];
> +
> +		if (!ring || !ring->ready)
> +			continue;
> +
> +		r = amdgpu_ring_test_ring(ring);
> +		if (r) {
> +			ring->ready = false;
> +			DRM_ERROR("amdgpu: failed to test ring %d
> (%d).\n",
> +				  i, r);
> +		}
> +	}
> +
> +	return r;
> +}
> +
> +static int amdgpu_debugfs_test_ring(struct seq_file *m, void *data)
> +{
> +	struct drm_info_node *node = (struct drm_info_node *) m-
> >private;
> +	struct drm_device *dev = node->minor->dev;
> +	struct amdgpu_device *adev = dev->dev_private;
> +	int r = 0;
> +
> +	seq_printf(m, "run ring test:\n");
> +	r = amdgpu_ring_tests(adev);
> +	if (r)
> +		seq_printf(m, "ring tests failed (%d).\n", r);
> +	else
> +		seq_printf(m, "ring tests passed.\n");
> +
> +	return 0;
> +}
> +
>  static const struct drm_info_list amdgpu_debugfs_test_ib_ring_list[] = {
> -	{"amdgpu_test_ib", &amdgpu_debugfs_test_ib}
> +	{"amdgpu_test_ib", &amdgpu_debugfs_test_ib},
> +	{"amdgpu_test_ring", &amdgpu_debugfs_test_ring}
>  };
> 
>  static int amdgpu_debugfs_test_ib_ring_init(struct amdgpu_device *adev)
>  {
>  	return amdgpu_debugfs_add_files(adev,
> -					amdgpu_debugfs_test_ib_ring_list,
> 1);
> +					amdgpu_debugfs_test_ib_ring_list,
> 2);
>  }
> 
>  int amdgpu_debugfs_init(struct drm_minor *minor)
> --
> 2.7.4