[PATCH libdrm 2/2] tests/amdgpu: add gpu reset test

[Cui, Flora]

1. perform gpu reset
2. perform dispatch test to verify gpu reset to a good state

Change-Id: I4bba0d1b829288bba7b6885d7e68c8f69ef8f4b5
Signed-off-by: Flora Cui <flora.cui at amd.com>
---
 tests/amdgpu/amdgpu_test.c |  5 +++++
 tests/amdgpu/basic_tests.c | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/tests/amdgpu/amdgpu_test.c b/tests/amdgpu/amdgpu_test.c
index 73403fb..0c9364a 100644
--- a/tests/amdgpu/amdgpu_test.c
+++ b/tests/amdgpu/amdgpu_test.c
@@ -472,6 +472,11 @@ static void amdgpu_disable_suites()
 	if (family_id < AMDGPU_FAMILY_AI || family_id > AMDGPU_FAMILY_RV)
 		if (amdgpu_set_test_active(BASIC_TESTS_STR, "Draw Test", CU_FALSE))
 			fprintf(stderr, "test deactivation failed - %s\n", CU_get_error_msg());
+
+	/* This test was ran on GFX9 only */
+	if (family_id < AMDGPU_FAMILY_AI || family_id > AMDGPU_FAMILY_RV)
+		if (amdgpu_set_test_active(BASIC_TESTS_STR, "GPU reset Test", CU_FALSE))
+			fprintf(stderr, "test deactivation failed - %s\n", CU_get_error_msg());
 }
 
 /* The main() function for setting up and running the tests.
diff --git a/tests/amdgpu/basic_tests.c b/tests/amdgpu/basic_tests.c
index 8fa7088..c04df8b 100644
--- a/tests/amdgpu/basic_tests.c
+++ b/tests/amdgpu/basic_tests.c
@@ -24,6 +24,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
 #ifdef HAVE_ALLOCA_H
 # include <alloca.h>
 #endif
@@ -51,6 +54,7 @@ static void amdgpu_sync_dependency_test(void);
 static void amdgpu_bo_eviction_test(void);
 static void amdgpu_dispatch_test(void);
 static void amdgpu_draw_test(void);
+static void amdgpu_gpu_reset_test(void);
 
 static void amdgpu_command_submission_write_linear_helper(unsigned ip_type);
 static void amdgpu_command_submission_const_fill_helper(unsigned ip_type);
@@ -74,6 +78,7 @@ CU_TestInfo basic_tests[] = {
 	{ "Sync dependency Test",  amdgpu_sync_dependency_test },
 	{ "Dispatch Test",  amdgpu_dispatch_test },
 	{ "Draw Test",  amdgpu_draw_test },
+	{ "GPU reset Test", amdgpu_gpu_reset_test },
 	CU_TEST_INFO_NULL,
 };
 #define BUFFER_SIZE (8 * 1024)
@@ -3131,3 +3136,36 @@ static void amdgpu_draw_test(void)
 		amdgpu_memcpy_draw_test(device_handle, ring_id);
 	}
 }
+
+static void amdgpu_gpu_reset_test(void)
+{
+	int r;
+	char debugfs_path[256], tmp[10];
+	int fd;
+	struct stat sbuf;
+	amdgpu_context_handle context_handle;
+	uint32_t hang_state, hangs;
+
+	r = amdgpu_cs_ctx_create(device_handle, &context_handle);
+	CU_ASSERT_EQUAL(r, 0);
+
+	r = fstat(drm_amdgpu[0], &sbuf);
+	CU_ASSERT_EQUAL(r, 0);
+
+	sprintf(debugfs_path, "/sys/kernel/debug/dri/%d/amdgpu_gpu_recover", minor(sbuf.st_rdev));
+	fd = open(debugfs_path, O_RDONLY);
+	CU_ASSERT(fd >= 0);
+
+	r = read(fd, tmp, sizeof(tmp)/sizeof(char));
+	CU_ASSERT(r > 0);
+
+	r = amdgpu_cs_query_reset_state(context_handle, &hang_state, &hangs);
+	CU_ASSERT_EQUAL(r, 0);
+	CU_ASSERT_EQUAL(hang_state, AMDGPU_CTX_UNKNOWN_RESET);
+
+	close(fd);
+	r = amdgpu_cs_ctx_free(context_handle);
+	CU_ASSERT_EQUAL(r, 0);
+
+	amdgpu_dispatch_test();
+}
-- 
2.7.4