[Intel-gfx] [PATCH i-g-t 2/3] lib: Add reset-type helper in ioctl_wrappers

[Arkadiusz Hiler]

On Tue, Jun 20, 2017 at 11:25:01AM -0700, Michel Thierry wrote:
> Soon we will have tests that are only for platforms with reset-engine
> (GEN8+), so add a helper to query the has_gpu_reset via the getparam ioctl.
> 
> Signed-off-by: Michel Thierry <michel.thierry at intel.com>
> ---
>  lib/ioctl_wrappers.c | 22 ++++++++++++++++++++++
>  lib/ioctl_wrappers.h |  1 +
>  2 files changed, 23 insertions(+)
> 
> diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c
> index 0816a7b6..958b7d03 100644
> --- a/lib/ioctl_wrappers.c
> +++ b/lib/ioctl_wrappers.c
> @@ -1199,6 +1199,28 @@ bool gem_uses_full_ppgtt(int fd)
>  }
>  
>  /**
> + * gem_gpu_reset_type:
> + * @fd: open i915 drm file descriptor
> + *
> + * Query whether reset-engine (2), global-reset (1) or reset-disable (0)

What about using an enum to save us commenting on the magic numbers
later on?

-- 
Cheers,
Arek

> + * is available.
> + *
> + * Returns: GPU reset type available
> + */
> +int gem_gpu_reset_type(int fd)
> +{
> +	struct drm_i915_getparam gp;
> +	int gpu_reset_type = -1;
> +
> +	memset(&gp, 0, sizeof(gp));
> +	gp.param = I915_PARAM_HAS_GPU_RESET;
> +	gp.value = &gpu_reset_type;
> +	drmIoctl(fd, DRM_IOCTL_I915_GETPARAM, &gp);
> +
> +	return gpu_reset_type;
> +}
> +
> +/**
>   * gem_available_fences:
>   * @fd: open i915 drm file descriptor
>   *
> diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h
> index e1279d94..0fd4e8e4 100644
> --- a/lib/ioctl_wrappers.h
> +++ b/lib/ioctl_wrappers.h
> @@ -164,6 +164,7 @@ bool gem_has_blt(int fd);
>  bool gem_has_vebox(int fd);
>  bool gem_has_bsd2(int fd);
>  int gem_gtt_type(int fd);
> +int gem_gpu_reset_type(int fd);
>  bool gem_uses_ppgtt(int fd);
>  bool gem_uses_full_ppgtt(int fd);
>  int gem_available_fences(int fd);
> -- 
> 2.11.0
> 
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