[igt-dev] [PATCH 2/2] i915/gem_exec_blt: Add tests that do a single copy using blitter

[Vanshidhar Konda]

Add a basic test that does a single copy of data using the blitter
engine. The intention is to verify if blitter engine is copying data
as expected.

Signed-off-by: Vanshidhar Konda <vanshidhar.r.konda at intel.com>
---
 tests/i915/gem_exec_blt.c | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/tests/i915/gem_exec_blt.c b/tests/i915/gem_exec_blt.c
index 6be73f53..e229c615 100644
--- a/tests/i915/gem_exec_blt.c
+++ b/tests/i915/gem_exec_blt.c
@@ -194,7 +194,10 @@ static void init_buffer_data(void *addr, int object_size, uint32_t base_dword)
 #define verify_data(src__, dst__, size) \
 	igt_assert_eq(memcmp(src__, dst__, size), 0)
 
-static void run(int fd, int object_size, bool dumb)
+#define RUN_DUMB_BUF BIT(0)
+#define RUN_SINGLE_ITER BIT(1)
+
+static void run(int fd, int object_size, unsigned int flags)
 {
 	struct drm_i915_gem_execbuffer2 execbuf;
 	struct drm_i915_gem_exec_object2 exec[3];
@@ -205,7 +208,7 @@ static void run(int fd, int object_size, bool dumb)
 	int ring;
 	void *src_buffer, *dst_buffer;
 
-	if (dumb)
+	if (flags & RUN_DUMB_BUF)
 		handle = kmstest_dumb_create(fd, 32, 32, 32, NULL, NULL);
 	else
 		handle = gem_create(fd, 4096);
@@ -256,6 +259,9 @@ static void run(int fd, int object_size, bool dumb)
 
 	verify_data(src_buffer, dst_buffer, object_size);
 
+	if (flags & RUN_SINGLE_ITER)
+		goto done;
+
 	for (count = 1; count <= 1<<12; count <<= 1) {
 		struct timeval start, end;
 		const int reps = 9;
@@ -283,6 +289,7 @@ static void run(int fd, int object_size, bool dumb)
 		fflush(stdout);
 	}
 
+done:
 	munmap(src_buffer, object_size);
 	munmap(dst_buffer, object_size);
 
@@ -348,6 +355,15 @@ igt_main
 		max = igt_sysfs_get_u32(sysfs, "gt_max_freq_mhz");
 	}
 
+	igt_describe("Run a single copy operation using the blitter engine");
+	igt_subtest("basic-normal")
+		run(fd, OBJECT_SIZE, RUN_SINGLE_ITER);
+
+	igt_describe("Run a single copy operation using the blitter engine"
+		     " with one object as a dumb buffer");
+	igt_subtest("basic-dumb-buf")
+		run(fd, OBJECT_SIZE, RUN_SINGLE_ITER | RUN_DUMB_BUF);
+
 	for (r = rps; r->suffix; r++) {
 		igt_fixture r->func(sysfs);
 
@@ -355,10 +371,10 @@ igt_main
 			run(fd, OBJECT_SIZE, false);
 
 		igt_subtest_f("normal%s", r->suffix)
-			run(fd, OBJECT_SIZE, false);
+			run(fd, OBJECT_SIZE, 0);
 
 		igt_subtest_f("dumb-buf%s", r->suffix)
-			run(fd, OBJECT_SIZE, true);
+			run(fd, OBJECT_SIZE, RUN_DUMB_BUF);
 	}
 
 	igt_fixture {
-- 
2.23.0