[PATCH i-g-t 2/2] intel/xe_exec_store: Add Persistent subtest

[Kumar, Janga Rahul]

> -----Original Message-----
> From: igt-dev <igt-dev-bounces at lists.freedesktop.org> On Behalf Of
> sai.gowtham.ch at intel.com
> Sent: Friday, December 22, 2023 4:24 PM
> To: igt-dev at lists.freedesktop.org; Ch, Sai Gowtham
> <sai.gowtham.ch at intel.com>
> Subject: [PATCH i-g-t 2/2] intel/xe_exec_store: Add Persistent subtest
> 
> From: Sai Gowtham Ch <sai.gowtham.ch at intel.com>
> 
> Add persistent subtest to validate MI_PRT_BATCH_BUFFER_START.
> 
> Signed-off-by: Sai Gowtham Ch <sai.gowtham.ch at intel.com>
> ---
>  tests/intel/xe_exec_store.c | 86 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 86 insertions(+)
> 
> diff --git a/tests/intel/xe_exec_store.c b/tests/intel/xe_exec_store.c index
> ec875cffc..75bd65bb5 100644
> --- a/tests/intel/xe_exec_store.c
> +++ b/tests/intel/xe_exec_store.c
> @@ -74,6 +74,24 @@ static void cond_batch(struct data *data, uint64_t addr,
> int value)
>  	data->addr = batch_addr;
>  }
> 
> +static void persistance_batch(struct data *data, uint64_t addr) {
> +	int b;
> +	uint64_t batch_offset = (char *)&(data->batch) - (char *)data;
> +	uint64_t batch_addr = addr + batch_offset;
> +	uint64_t prt_offset = (char *)&(data->data) - (char *)data;
> +	uint64_t prt_addr = addr + prt_offset;
> +
> +	b = 0;
> +	data->batch[b++] = MI_BATCH_BUFFER_START;
> +	data->batch[b++] = MI_PRT_BATCH_BUFFER_START;
> +	data->batch[b++] = prt_addr;
> +	data->batch[b++] = prt_addr >> 32;
> +	data->batch[b++] = MI_BATCH_BUFFER_END;
> +
> +	data->addr = batch_addr;
> +
> +}
>  /**
>   * SUBTEST: basic-store
>   * Description: Basic test to verify store dword.
> @@ -246,6 +264,71 @@ static void store_cachelines(int fd, struct
> drm_xe_engine_class_instance *eci,
>  	xe_vm_destroy(fd, vm);
>  }
> 
> +/**
> + * SUBTEST: persistent
> + * DESCRIPTION: Validate MI_PRT_BATCH_BUFFER_START functionality  */
> +static void persistent(int fd) {
> +	struct drm_xe_sync sync = {
> +		.type = DRM_XE_SYNC_TYPE_SYNCOBJ,
> +		.flags = DRM_XE_SYNC_FLAG_SIGNAL,
> +	};
> +	struct drm_xe_exec exec = {
> +		.num_batch_buffer = 1,
> +		.num_syncs = 1,
> +		.syncs = to_user_pointer(&sync),
> +	};
> +	struct data *sd_data;
> +	struct data *prt_data;
> +	struct drm_xe_engine *engine;
> +	uint32_t vm, exec_queue,syncobj;
				^
space required after that ','

Thanks,
Rahul
> +	uint32_t sd_batch, prt_batch;
> +	uint64_t addr = 0x100000;
> +	int value = 0x123456;
> +	size_t batch_size = 4096;
> +
> +	syncobj = syncobj_create(fd, 0);
> +	sync.handle = syncobj;
> +
> +	vm = xe_vm_create(fd, 0, 0);
> +	batch_size = ALIGN(batch_size + xe_cs_prefetch_size(fd),
> +					xe_get_default_alignment(fd));
> +
> +	engine = xe_engine(fd, 1);
> +	sd_batch = xe_bo_create(fd, vm, batch_size,
> +			      vram_if_possible(fd, engine->instance.gt_id),
> +
> DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM);
> +	prt_batch = xe_bo_create(fd, vm, batch_size,
> +			      vram_if_possible(fd, engine->instance.gt_id),
> +
> DRM_XE_GEM_CREATE_FLAG_NEEDS_VISIBLE_VRAM);
> +
> +	xe_vm_bind_async(fd, vm, engine->instance.gt_id, sd_batch, 0, addr,
> batch_size, &sync, 1);
> +	sd_data = xe_bo_map(fd, sd_batch, batch_size);
> +	prt_data = xe_bo_map(fd, prt_batch, batch_size);
> +
> +	store_dword_batch(sd_data, addr, value);
> +	persistance_batch(prt_data, addr);
> +
> +	exec_queue = xe_exec_queue_create(fd, vm, &engine->instance, 0);
> +	exec.exec_queue_id = exec_queue;
> +	exec.address = prt_data->addr;
> +	sync.flags &= DRM_XE_SYNC_FLAG_SIGNAL;
> +	xe_exec(fd, &exec);
> +
> +	igt_assert(syncobj_wait(fd, &syncobj, 1, INT64_MAX, 0, NULL));
> +	igt_assert_eq(sd_data->data, value);
> +
> +	syncobj_destroy(fd, syncobj);
> +	munmap(sd_data, batch_size);
> +	munmap(prt_data, batch_size);
> +	gem_close(fd, sd_batch);
> +	gem_close(fd, prt_batch);
> +
> +	xe_exec_queue_destroy(fd, exec_queue);
> +	xe_vm_destroy(fd, vm);
> +}
> +
>  igt_main
>  {
>  	struct drm_xe_engine_class_instance *hwe; @@ -285,6 +368,9 @@
> igt_main
>  		xe_for_each_engine(fd, hwe)
>  			store_cachelines(fd, hwe, PAGES);
> 
> +	igt_subtest("persistent")
> +		persistent(fd);
> +
>  	igt_fixture {
>  		xe_device_put(fd);
>  		close(fd);
> --
> 2.39.1