[igt-dev] [PATCH] tests/amd_dispatch: add negative test

[vitaly prosyak]

Hi Jesse,

Please ,add to the commit message as below.

The change looks good to me.

Reviewed-by : Vitaly Prosyak <vitaly.prosyak at amd.com>

--

Thanks, Vitaly

On 2023-10-10 02:50, Jesse Zhang wrote:
> Dispatch a bad program on gfx/compute ring.
> Check wether they will hang.
Expose the additional parameter 'hung' to the upper layer.

Dispatch existent a binary shader that waits for the register to be changed, 

but it does not occur and as a result, we have GPU reset and check this.

Improve test description.

>
> V2:
>   -add detail description and fix code style(Kamil)
>
> Cc: Vitaly Prosyak <vitaly.prosyak at amd.com>
> Cc: Luben Tuikov <luben.tuikov at amd.com>
> Cc: Alex Deucher <alexander.deucher at amd.com>
> Cc: Christian Koenig <christian.koenig at amd.com>
> Cc: Kamil Konieczny <kamil.konieczny at linux.intel.com>
> ---
>  lib/amdgpu/amd_dispatch.c   |  4 ++--
>  lib/amdgpu/amd_dispatch.h   |  2 +-
>  tests/amdgpu/amd_dispatch.c | 38 ++++++++++++++++++++++++++++++++-----
>  3 files changed, 36 insertions(+), 8 deletions(-)
>
> diff --git a/lib/amdgpu/amd_dispatch.c b/lib/amdgpu/amd_dispatch.c
> index 9de3986ba..040381a11 100644
> --- a/lib/amdgpu/amd_dispatch.c
> +++ b/lib/amdgpu/amd_dispatch.c
> @@ -524,7 +524,7 @@ amdgpu_dispatch_hang_slow_helper(amdgpu_device_handle device_handle,
>  	}
>  }
>  
> -void amdgpu_gfx_dispatch_test(amdgpu_device_handle device_handle, uint32_t ip_type)
> +void amdgpu_gfx_dispatch_test(amdgpu_device_handle device_handle, uint32_t ip_type, int hang)
>  {
>  	int r;
>  	struct drm_amdgpu_info_hw_ip info;
> @@ -547,7 +547,7 @@ void amdgpu_gfx_dispatch_test(amdgpu_device_handle device_handle, uint32_t ip_ty
>  		amdgpu_memset_dispatch_test(device_handle, ip_type, ring_id,
>  					    version);
>  		amdgpu_memcpy_dispatch_test(device_handle, ip_type, ring_id,
> -					    version, 0);
> +					    version, hang);
>  	}
>  }
>  
> diff --git a/lib/amdgpu/amd_dispatch.h b/lib/amdgpu/amd_dispatch.h
> index c500b5b3f..4df8b1355 100644
> --- a/lib/amdgpu/amd_dispatch.h
> +++ b/lib/amdgpu/amd_dispatch.h
> @@ -27,7 +27,7 @@
>  #include <amdgpu.h>
>  
>  void amdgpu_gfx_dispatch_test(amdgpu_device_handle device_handle,
> -			      uint32_t ip_type);
> +			      uint32_t ip_type, int hang);
>  
>  void amdgpu_memcpy_dispatch_test(amdgpu_device_handle device_handle,
>  					uint32_t ip_type,
> diff --git a/tests/amdgpu/amd_dispatch.c b/tests/amdgpu/amd_dispatch.c
> index 769f26cd0..323284306 100644
> --- a/tests/amdgpu/amd_dispatch.c
> +++ b/tests/amdgpu/amd_dispatch.c
> @@ -24,6 +24,18 @@ amdgpu_dispatch_hang_slow_compute(amdgpu_device_handle device_handle)
>  	amdgpu_dispatch_hang_slow_helper(device_handle, AMDGPU_HW_IP_COMPUTE);
>  }
>  
> +static void
> +amdgpu_dispatch_hang_gfx(amdgpu_device_handle device_handle)
> +{
> +	amdgpu_gfx_dispatch_test(device_handle, AMDGPU_HW_IP_GFX, 1);
> +}
> +
> +static void
> +amdgpu_dispatch_hang_compute(amdgpu_device_handle device_handle)
> +{
> +	amdgpu_gfx_dispatch_test(device_handle, AMDGPU_HW_IP_COMPUTE, 1);
> +}
> +
>  static void
>  amdgpu_gpu_reset_test(amdgpu_device_handle device_handle, int drm_amdgpu)
>  {
> @@ -54,8 +66,8 @@ amdgpu_gpu_reset_test(amdgpu_device_handle device_handle, int drm_amdgpu)
>  	r = amdgpu_cs_ctx_free(context_handle);
>  	igt_assert_eq(r, 0);
>  
> -	amdgpu_gfx_dispatch_test(device_handle, AMDGPU_HW_IP_GFX);
> -	amdgpu_gfx_dispatch_test(device_handle, AMDGPU_HW_IP_COMPUTE);
> +	amdgpu_gfx_dispatch_test(device_handle, AMDGPU_HW_IP_GFX, 0);
> +	amdgpu_gfx_dispatch_test(device_handle, AMDGPU_HW_IP_COMPUTE, 0);
>  }
>  
>  igt_main
> @@ -85,7 +97,7 @@ igt_main
>  		asic_rings_readness(device, 1, arr_cap);
>  
>  	}
> -	igt_describe("Test-GPU-reset-using-a-binary-shader-to-hang-the-job-on-compute-ring");
> +	igt_describe("Test GPU reset using a binary shader to slow hang the job on compute ring");
>  	igt_subtest_with_dynamic("amdgpu-dispatch-test-compute-with-IP-COMPUTE") {
>  		if (arr_cap[AMD_IP_COMPUTE]) {
>  			igt_dynamic_f("amdgpu-dispatch-test-compute")
> @@ -93,7 +105,7 @@ igt_main
>  		}
>  	}
>  
> -	igt_describe("Test-GPU-reset-using-a-binary-shader-to-hang-the-job-on-gfx-ring");
> +	igt_describe("Test GPU reset using a binary shader to slow hang the job on gfx ring");
>  	igt_subtest_with_dynamic("amdgpu-dispatch-test-gfx-with-IP-GFX") {
>  		if (arr_cap[AMD_IP_GFX]) {
>  			igt_dynamic_f("amdgpu-dispatch-test-gfx")
> @@ -101,7 +113,23 @@ igt_main
>  		}
>  	}
>  
> -	igt_describe("Test-GPU-reset-using-amdgpu-debugfs-to-hang-the-job-on-gfx-ring");
> +	igt_describe("Test GPU reset using a binary shader to hang the job on gfx ring");
> +	igt_subtest_with_dynamic("amdgpu-dispatch-hang-test-gfx-with-IP-GFX") {
> +		if (arr_cap[AMD_IP_GFX]) {
> +			igt_dynamic_f("amdgpu-dispatch-hang-test-gfx")
> +			amdgpu_dispatch_hang_gfx(device);
> +		}
> +	}
> +
> +	igt_describe("Test GPU reset using a binary shader to hang the job on compute ring");
> +	igt_subtest_with_dynamic("amdgpu-dispatch-hang-test-compute-with-IP-COMPUTE") {
> +		if (arr_cap[AMD_IP_COMPUTE]) {
> +			igt_dynamic_f("amdgpu-dispatch-hang-test-compute")
> +			amdgpu_dispatch_hang_compute(device);
> +		}
> +	}
> +
> +	igt_describe("Test GPU reset using amdgpu debugfs to hang the job on gfx ring");
>  	igt_subtest_with_dynamic("amdgpu-reset-test-gfx-with-IP-GFX-and-COMPUTE") {
>  		if (arr_cap[AMD_IP_GFX] && arr_cap[AMD_IP_COMPUTE]) {
>  			igt_dynamic_f("amdgpu-reset-gfx-compute")
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