[igt-dev] [PATCH] tests/amdgpu: add sync object tests

Luben Tuikov luben.tuikov at amd.com
Wed Aug 30 15:06:12 UTC 2023


Looks great--thanks! :-)

Regards,
Luben

On 2023-08-30 10:55, vitaly.prosyak at amd.com wrote:
> From: Vitaly Prosyak <vitaly.prosyak at amd.com>
> 
> Using worker thread to wait on point and then signal point on other thread.
> Another test uses a worker thread to signal point and wait on the main
> thread using amdgpu_cs_syncobj_timeline_wait.
> 
> The command consists of two chunks :
> 1. AMDGPU_CHUNK_ID_IB uses GFX_COMPUTE_NOP  or SDMA_NOP.
> 2. The second chunk is AMDGPU_CHUNK_ID_SYNCOBJ_TIMELINE_WAIT
>    or AMDGPU_CHUNK_ID_SYNCOBJ_TIMELINE_SIGNAL which has the
>    point number .
> 
> v2 : Kamil helped with podman script to fix the build
>      failure when drmlib version < 2.4.97
> v3 : Kamil suggested sort alphabetically includes.
>      Luben suggested code and meson script improvements.
> 
> 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>
> Signed-off-by: Vitaly Prosyak <vitaly.prosyak at amd.com>
> Reviewed-by: Luben Tuikov <luben.tuikov at amd.com>
> Reviewed-by: Kamil Konieczny <kamil.konieczny at linux.intel.com>
> ---
>  tests/amdgpu/amd_syncobj.c | 262 +++++++++++++++++++++++++++++++++++++
>  tests/amdgpu/meson.build   |   5 +
>  2 files changed, 267 insertions(+)
>  create mode 100644 tests/amdgpu/amd_syncobj.c
> 
> diff --git a/tests/amdgpu/amd_syncobj.c b/tests/amdgpu/amd_syncobj.c
> new file mode 100644
> index 000000000..e1d80758e
> --- /dev/null
> +++ b/tests/amdgpu/amd_syncobj.c
> @@ -0,0 +1,262 @@
> +// SPDX-License-Identifier: MIT
> +/*
> + * Copyright 2017 Advanced Micro Devices, Inc.
> + * Copyright 2023 Advanced Micro Devices, Inc.
> + */
> +
> +#include <amdgpu.h>
> +#include <amdgpu_drm.h>
> +#include <pthread.h>
> +
> +#include "igt.h"
> +#include "lib/amdgpu/amd_PM4.h"
> +#include "lib/amdgpu/amd_sdma.h"
> +#include "lib/amdgpu/amd_memory.h"
> +
> +struct syncobj_point {
> +	amdgpu_device_handle device;
> +	uint32_t syncobj_handle;
> +	uint64_t point;
> +};
> +
> +
> +static bool
> +syncobj_timeline_enable(int fd)
> +{
> +	int r;
> +	uint64_t cap = 0;
> +
> +	r = drmGetCap(fd, DRM_CAP_SYNCOBJ_TIMELINE, &cap);
> +
> +	return !(r || cap == 0);
> +}
> +
> +static void
> +syncobj_command_submission_helper(amdgpu_device_handle device_handle,
> +		uint32_t syncobj_handle, bool wait_or_signal, uint64_t point)
> +{
> +	amdgpu_context_handle context_handle;
> +	amdgpu_bo_handle ib_result_handle;
> +	void *ib_result_cpu;
> +	uint64_t ib_result_mc_address;
> +	struct drm_amdgpu_cs_chunk chunks[2];
> +	struct drm_amdgpu_cs_chunk_data chunk_data;
> +	struct drm_amdgpu_cs_chunk_syncobj syncobj_data;
> +	struct amdgpu_cs_fence fence_status;
> +	amdgpu_bo_list_handle bo_list;
> +	amdgpu_va_handle va_handle;
> +	uint32_t expired;
> +	int i, r;
> +	uint64_t seq_no;
> +	uint32_t *ptr;
> +
> +	r = amdgpu_cs_ctx_create(device_handle, &context_handle);
> +	igt_assert_eq(r, 0);
> +
> +	r = amdgpu_bo_alloc_and_map(device_handle, 4096, 4096,
> +				    AMDGPU_GEM_DOMAIN_GTT, 0,
> +				    &ib_result_handle, &ib_result_cpu,
> +				    &ib_result_mc_address, &va_handle);
> +	igt_assert_eq(r, 0);
> +
> +	r = amdgpu_get_bo_list(device_handle, ib_result_handle, NULL, &bo_list);
> +	igt_assert_eq(r, 0);
> +
> +	ptr = ib_result_cpu;
> +
> +	for (i = 0; i < 16; ++i)
> +		ptr[i] = wait_or_signal ? GFX_COMPUTE_NOP : SDMA_NOP;
> +
> +	chunks[0].chunk_id = AMDGPU_CHUNK_ID_IB;
> +	chunks[0].length_dw = sizeof(struct drm_amdgpu_cs_chunk_ib) / 4;
> +	chunks[0].chunk_data = (uint64_t)(uintptr_t)&chunk_data;
> +	chunk_data.ib_data._pad = 0;
> +	chunk_data.ib_data.va_start = ib_result_mc_address;
> +	chunk_data.ib_data.ib_bytes = 16 * 4;
> +	chunk_data.ib_data.ip_type = wait_or_signal ? AMDGPU_HW_IP_GFX : AMDGPU_HW_IP_DMA;
> +	chunk_data.ib_data.ip_instance = 0;
> +	chunk_data.ib_data.ring = 0;
> +	chunk_data.ib_data.flags = 0;
> +
> +	chunks[1].chunk_id = wait_or_signal ?
> +		AMDGPU_CHUNK_ID_SYNCOBJ_TIMELINE_WAIT :
> +		AMDGPU_CHUNK_ID_SYNCOBJ_TIMELINE_SIGNAL;
> +	chunks[1].length_dw = sizeof(struct drm_amdgpu_cs_chunk_syncobj) / 4;
> +	chunks[1].chunk_data = (uint64_t)(uintptr_t)&syncobj_data;
> +	syncobj_data.handle = syncobj_handle;
> +	syncobj_data.point = point;
> +	syncobj_data.flags = DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT;
> +
> +	r = amdgpu_cs_submit_raw(device_handle,
> +				 context_handle,
> +				 bo_list,
> +				 2,
> +				 chunks,
> +				 &seq_no);
> +	igt_assert_eq(r, 0);
> +
> +	memset(&fence_status, 0, sizeof(struct amdgpu_cs_fence));
> +	fence_status.context = context_handle;
> +	fence_status.ip_type = wait_or_signal ? AMDGPU_HW_IP_GFX : AMDGPU_HW_IP_DMA;
> +	fence_status.ip_instance = 0;
> +	fence_status.ring = 0;
> +	fence_status.fence = seq_no;
> +
> +	r = amdgpu_cs_query_fence_status(&fence_status,
> +			AMDGPU_TIMEOUT_INFINITE, 0, &expired);
> +	igt_assert_eq(r, 0);
> +
> +	r = amdgpu_bo_list_destroy(bo_list);
> +	igt_assert_eq(r, 0);
> +
> +	amdgpu_bo_unmap_and_free(ib_result_handle, va_handle,
> +				     ib_result_mc_address, 4096);
> +
> +	r = amdgpu_cs_ctx_free(context_handle);
> +	igt_assert_eq(r, 0);
> +}
> +
> +static void *
> +syncobj_wait(void *data)
> +{
> +	struct syncobj_point *sp = (struct syncobj_point *)data;
> +
> +	syncobj_command_submission_helper(sp->device, sp->syncobj_handle, true,
> +					      sp->point);
> +
> +	return (void *)0;
> +}
> +
> +static void *
> +syncobj_signal(void *data)
> +{
> +	struct syncobj_point *sp = (struct syncobj_point *)data;
> +
> +	syncobj_command_submission_helper(sp->device, sp->syncobj_handle, false,
> +						sp->point);
> +
> +	return (void *)0;
> +}
> +
> +static void
> +amdgpu_syncobj_timeline(amdgpu_device_handle device_handle)
> +{
> +	static pthread_t wait_thread;
> +	static pthread_t signal_thread;
> +	static pthread_t c_thread;
> +	struct syncobj_point sp1, sp2, sp3;
> +	uint32_t syncobj_handle;
> +	uint64_t payload;
> +	uint64_t wait_point, signal_point;
> +	uint64_t timeout;
> +	struct timespec tp;
> +	int r, sync_fd;
> +	void *tmp, *tmp2;
> +
> +	r =  amdgpu_cs_create_syncobj2(device_handle, 0, &syncobj_handle);
> +	igt_assert_eq(r, 0);
> +
> +	// wait on point 5
> +	sp1.syncobj_handle = syncobj_handle;
> +	sp1.device = device_handle;
> +	sp1.point = 5;
> +	r = pthread_create(&wait_thread, NULL, syncobj_wait, &sp1);
> +	igt_assert_eq(r, 0);
> +
> +	// signal on point 10
> +	sp2.syncobj_handle = syncobj_handle;
> +	sp2.device = device_handle;
> +	sp2.point = 10;
> +	r = pthread_create(&signal_thread, NULL, syncobj_signal, &sp2);
> +	igt_assert_eq(r, 0);
> +
> +	r = pthread_join(signal_thread, &tmp);
> +	igt_assert_eq(r, 0);
> +
> +	r = pthread_join(wait_thread, &tmp2);
> +	igt_assert_eq(r, 0);
> +
> +	//query timeline payload
> +	r = amdgpu_cs_syncobj_query(device_handle, &syncobj_handle,
> +				    &payload, 1);
> +	igt_assert_eq(r, 0);
> +	igt_assert_eq(payload, 10);
> +
> +	//signal on point 16
> +	sp3.syncobj_handle = syncobj_handle;
> +	sp3.device = device_handle;
> +	sp3.point = 16;
> +	r = pthread_create(&c_thread, NULL, syncobj_signal, &sp3);
> +	igt_assert_eq(r, 0);
> +
> +	//CPU wait on point 16
> +	wait_point = 16;
> +	timeout = 0;
> +	clock_gettime(CLOCK_MONOTONIC, &tp);
> +	timeout = tp.tv_sec * 1000000000ULL + tp.tv_nsec;
> +	timeout += 10000000000; //10s
> +	r = amdgpu_cs_syncobj_timeline_wait(device_handle, &syncobj_handle,
> +					    &wait_point, 1, timeout,
> +					    DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL |
> +					    DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT,
> +					    NULL);
> +
> +	igt_assert_eq(r, 0);
> +	r = pthread_join(c_thread, &tmp);
> +	igt_assert_eq(r, 0);
> +
> +	// export point 16 and import to point 18
> +	r = amdgpu_cs_syncobj_export_sync_file2(device_handle, syncobj_handle,
> +						16,
> +						DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT,
> +						&sync_fd);
> +	igt_assert_eq(r, 0);
> +	r = amdgpu_cs_syncobj_import_sync_file2(device_handle, syncobj_handle,
> +						18, sync_fd);
> +	igt_assert_eq(r, 0);
> +	r = amdgpu_cs_syncobj_query(device_handle, &syncobj_handle,
> +				    &payload, 1);
> +	igt_assert_eq(r, 0);
> +	igt_assert_eq(payload, 18);
> +
> +	// CPU signal on point 20
> +	signal_point = 20;
> +	r = amdgpu_cs_syncobj_timeline_signal(device_handle, &syncobj_handle,
> +					      &signal_point, 1);
> +	igt_assert_eq(r, 0);
> +	r = amdgpu_cs_syncobj_query(device_handle, &syncobj_handle,
> +				    &payload, 1);
> +	igt_assert_eq(r, 0);
> +	igt_assert_eq(payload, 20);
> +
> +	r = amdgpu_cs_destroy_syncobj(device_handle, syncobj_handle);
> +	igt_assert_eq(r, 0);
> +
> +}
> +
> +igt_main
> +{
> +	amdgpu_device_handle device;
> +	int fd = -1;
> +
> +	igt_fixture {
> +		uint32_t major, minor;
> +		int err;
> +
> +		fd = drm_open_driver(DRIVER_AMDGPU);
> +		err = amdgpu_device_initialize(fd, &major, &minor, &device);
> +		igt_require(err == 0);
> +		igt_require(syncobj_timeline_enable(fd));
> +		igt_info("Initialized amdgpu, driver version %d.%d\n",
> +			 major, minor);
> +
> +	}
> +
> +	igt_subtest("amdgpu_syncobj_timeline")
> +	amdgpu_syncobj_timeline(device);
> +
> +	igt_fixture {
> +		amdgpu_device_deinitialize(device);
> +		close(fd);
> +	}
> +}
> diff --git a/tests/amdgpu/meson.build b/tests/amdgpu/meson.build
> index 6032a38e8..ebf52bf38 100644
> --- a/tests/amdgpu/meson.build
> +++ b/tests/amdgpu/meson.build
> @@ -37,6 +37,11 @@ if libdrm_amdgpu.found()
>  			  'amd_mall',
>  			  'amd_odm',
>  			]
> +	if libdrm_amdgpu.version().version_compare('> 2.4.97')
> +		amdgpu_progs +=[ 'amd_syncobj', ]
> +	else
> +		warning('libdrm <= 2.4.97 found, amd_syncobj test not applicable')
> +	endif
>  	amdgpu_deps += libdrm_amdgpu
>  endif
>  

-- 
Regards,
Luben



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