[PATCH 4/4] tests/amdgpu: add semaphore across process test

[Chunming Zhou <David1.Zhou-5C7GfCeVMHo@public.gmane.org>]

Change-Id: I6e8c8cfa1a05f51f3c03670baea68ed6da94fa11
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
---
 tests/amdgpu/basic_tests.c | 131 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)

diff --git a/tests/amdgpu/basic_tests.c b/tests/amdgpu/basic_tests.c
index 02e863a..c7da54d 100644
--- a/tests/amdgpu/basic_tests.c
+++ b/tests/amdgpu/basic_tests.c
@@ -47,6 +47,7 @@ static void amdgpu_command_submission_sdma(void);
 static void amdgpu_command_submission_multi_fence(void);
 static void amdgpu_userptr_test(void);
 static void amdgpu_semaphore_test(void);
+static void amdgpu_semaphore_across_process_test(void);
 static void amdgpu_svm_test(void);
 static void amdgpu_multi_svm_test(void);
 static void amdgpu_va_range_test(void);
@@ -60,6 +61,7 @@ CU_TestInfo basic_tests[] = {
 	{ "Command submission Test (SDMA)", amdgpu_command_submission_sdma },
 	{ "Command submission Test (Multi-fence)", amdgpu_command_submission_multi_fence },
 	{ "SW semaphore Test",  amdgpu_semaphore_test },
+	{ "SW semaphore across process Test",  amdgpu_semaphore_across_process_test },
 	{ "VA range Test", amdgpu_va_range_test},
 	{ "SVM Test", amdgpu_svm_test },
 	{ "SVM Test (multi-GPUs)", amdgpu_multi_svm_test },
@@ -515,6 +517,135 @@ static void amdgpu_command_submission_gfx(void)
 	amdgpu_command_submission_gfx_shared_ib();
 }
 
+static void amdgpu_semaphore_across_process_test(void)
+{
+	struct amdgpu_context  *context_handle;
+	amdgpu_semaphore_handle sem;
+	amdgpu_bo_handle ib_result_handle[2];
+	void *ib_result_cpu[2];
+	uint64_t ib_result_mc_address[2];
+	struct amdgpu_cs_request ibs_request[2] = {0};
+	struct amdgpu_cs_ib_info ib_info[2] = {0};
+	struct amdgpu_cs_fence fence_status = {0};
+	uint32_t *ptr;
+	uint32_t expired;
+	uint32_t shared_handle;
+	amdgpu_bo_list_handle bo_list[2];
+	amdgpu_va_handle va_handle[2];
+	int r, i, pid;
+
+	r = amdgpu_cs_create_semaphore_object(device_handle, &sem);
+	CU_ASSERT_EQUAL(r, 0);
+	r = amdgpu_cs_ctx_create(device_handle, &context_handle);
+	CU_ASSERT_EQUAL(r, 0);
+
+	r = amdgpu_bo_alloc_and_map(device_handle, 4096, 4096,
+				    AMDGPU_GEM_DOMAIN_GTT, 0,
+				    &ib_result_handle[0], &ib_result_cpu[0],
+				    &ib_result_mc_address[0], &va_handle[0]);
+	CU_ASSERT_EQUAL(r, 0);
+
+	r = amdgpu_get_bo_list(device_handle, ib_result_handle[0],
+			       NULL, &bo_list[0]);
+	CU_ASSERT_EQUAL(r, 0);
+
+	ptr = ib_result_cpu[0];
+	ptr[0] = SDMA_NOP;
+	ib_info[0].ib_mc_address = ib_result_mc_address[0];
+	ib_info[0].size = 1;
+
+	ibs_request[0].ip_type = AMDGPU_HW_IP_DMA;
+	ibs_request[0].number_of_ibs = 1;
+	ibs_request[0].ibs = &ib_info[0];
+	ibs_request[0].resources = bo_list[0];
+	ibs_request[0].fence_info.handle = NULL;
+	r = amdgpu_cs_submit(context_handle, 0,&ibs_request[0], 1);
+	CU_ASSERT_EQUAL(r, 0);
+	r = amdgpu_cs_signal_semaphore(context_handle, AMDGPU_HW_IP_DMA, 0, 0, sem);
+	CU_ASSERT_EQUAL(r, 0);
+	r = amdgpu_cs_export_semaphore(sem, &shared_handle);
+	CU_ASSERT_EQUAL(r, 0);
+
+	pid = fork();
+	/* child process */
+	if (pid == 0) {
+		amdgpu_device_handle child_device_handle;
+		uint32_t  child_major_version;
+		uint32_t  child_minor_version;
+		amdgpu_semaphore_handle child_sem;
+		amdgpu_context_handle context_handle1;
+
+		r = amdgpu_device_initialize(drm_amdgpu[0], &child_major_version,
+					     &child_minor_version, &child_device_handle);
+		CU_ASSERT_EQUAL(r, 0);
+
+		r = amdgpu_bo_alloc_and_map(child_device_handle, 4096, 4096,
+					    AMDGPU_GEM_DOMAIN_GTT, 0,
+					    &ib_result_handle[1], &ib_result_cpu[1],
+					    &ib_result_mc_address[1], &va_handle[1]);
+		CU_ASSERT_EQUAL(r, 0);
+
+		r = amdgpu_get_bo_list(child_device_handle, ib_result_handle[1],
+				       NULL, &bo_list[1]);
+		CU_ASSERT_EQUAL(r, 0);
+
+		r = amdgpu_cs_import_semaphore(&child_sem, child_device_handle, shared_handle);
+		CU_ASSERT_EQUAL(r, 0);
+
+		r = amdgpu_cs_ctx_create(child_device_handle, &context_handle1);
+		CU_ASSERT_EQUAL(r, 0);
+
+		r = amdgpu_cs_wait_semaphore(context_handle1, AMDGPU_HW_IP_GFX, 0, 0, child_sem);
+		CU_ASSERT_EQUAL(r, 0);
+		ptr = ib_result_cpu[1];
+		ptr[0] = GFX_COMPUTE_NOP;
+		ib_info[1].ib_mc_address = ib_result_mc_address[1];
+		ib_info[1].size = 1;
+
+		ibs_request[1].ip_type = AMDGPU_HW_IP_GFX;
+		ibs_request[1].number_of_ibs = 1;
+		ibs_request[1].ibs = &ib_info[1];
+		ibs_request[1].resources = bo_list[1];
+		ibs_request[1].fence_info.handle = NULL;
+
+		r = amdgpu_cs_submit(context_handle1, 0,&ibs_request[1], 1);
+		CU_ASSERT_EQUAL(r, 0);
+
+		fence_status.context = context_handle1;
+		fence_status.ip_type = AMDGPU_HW_IP_GFX;
+		fence_status.fence = ibs_request[1].seq_no;
+		r = amdgpu_cs_query_fence_status(&fence_status,
+						 500000000, 0, &expired);
+		CU_ASSERT_EQUAL(r, 0);
+		CU_ASSERT_EQUAL(expired, true);
+
+		r = amdgpu_bo_unmap_and_free(ib_result_handle[1], va_handle[1],
+					     ib_result_mc_address[1], 4096);
+		CU_ASSERT_EQUAL(r, 0);
+
+		r = amdgpu_bo_list_destroy(bo_list[1]);
+		CU_ASSERT_EQUAL(r, 0);
+
+		r = amdgpu_cs_ctx_free(context_handle1);
+		CU_ASSERT_EQUAL(r, 0);
+
+		amdgpu_device_deinitialize(child_device_handle);
+	} else {
+		r = amdgpu_bo_unmap_and_free(ib_result_handle[0], va_handle[0],
+					     ib_result_mc_address[0], 4096);
+		CU_ASSERT_EQUAL(r, 0);
+
+		r = amdgpu_bo_list_destroy(bo_list[0]);
+		CU_ASSERT_EQUAL(r, 0);
+
+		r = amdgpu_cs_ctx_free(context_handle);
+		CU_ASSERT_EQUAL(r, 0);
+
+		r = amdgpu_cs_destroy_semaphore(sem);
+		CU_ASSERT_EQUAL(r, 0);
+	}
+}
+
 static void amdgpu_semaphore_test(void)
 {
 	amdgpu_context_handle context_handle[2];
-- 
1.9.1

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