[Intel-gfx] [PATCH i-g-t] tests/pm_rpm tests for set_caching and set_tiling ioctl(s)

[marius.c.vlad at intel.com]

From: Marius Vlad <marius.c.vlad at intel.com>

Signed-off-by: Marius Vlad <marius.c.vlad at intel.com>
---
 tests/pm_rpm.c | 90 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/tests/pm_rpm.c b/tests/pm_rpm.c
index c4fb19c..86d16ad 100644
--- a/tests/pm_rpm.c
+++ b/tests/pm_rpm.c
@@ -1729,6 +1729,90 @@ static void planes_subtest(bool universal, bool dpms)
 	}
 }
 
+static void pm_test_tiling(void)
+{
+	uint32_t handle;
+	uint8_t *gem_buf;
+	uint32_t i, tiling_modes[3] = {
+		I915_TILING_NONE,
+		I915_TILING_X,
+		I915_TILING_Y,
+	};
+	uint32_t ti, sw, j;
+	uint32_t obj_size = (8 * 1024 * 1024);
+
+	handle = gem_create(drm_fd, obj_size);
+
+	for (i = 0; i < ARRAY_SIZE(tiling_modes); i++) {
+		disable_all_screens_and_wait(&ms_data);
+
+		if (tiling_modes[i] == 0) {
+			gem_set_tiling(drm_fd, handle, tiling_modes[i], 0);
+
+			gem_buf = gem_mmap__cpu(drm_fd, handle, 0,
+					obj_size, PROT_WRITE);
+
+			for (j = 0; j < obj_size; j++)
+				gem_buf[j] = j & 0xff;
+
+			igt_assert(munmap(gem_buf, obj_size) == 0);
+
+			gem_get_tiling(drm_fd, handle, &ti, &sw);
+			igt_assert(tiling_modes[i] == ti);
+		} else {
+			gem_set_tiling(drm_fd, handle, tiling_modes[i], 512);
+			gem_buf = gem_mmap__cpu(drm_fd, handle, 0,
+					obj_size, PROT_WRITE);
+
+			for (j = 0; j < obj_size; j++)
+				gem_buf[j] = j & 0xff;
+
+			igt_assert(munmap(gem_buf, obj_size) == 0);
+
+			gem_get_tiling(drm_fd, handle, &ti, &sw);
+			igt_assert(tiling_modes[i] == ti);
+		}
+
+		enable_one_screen_and_wait(&ms_data);
+	}
+
+	gem_close(drm_fd, handle);
+}
+
+static void pm_test_caching(void)
+{
+	uint32_t handle, got_caching, obj_size = (8 * 1024 * 1024);
+	void *src_buf;
+	uint32_t i, cache_levels[3] = {
+		I915_CACHING_NONE,
+		I915_CACHING_CACHED,
+		I915_CACHING_DISPLAY,
+	};
+
+	handle = gem_create(drm_fd, obj_size);
+	src_buf = malloc(obj_size);
+
+	memset(src_buf, 0x65, obj_size);
+
+	for (i = 0; i < ARRAY_SIZE(cache_levels); i++) {
+		disable_all_screens_and_wait(&ms_data);
+
+		gem_set_caching(drm_fd, handle, cache_levels[i]);
+		gem_write(drm_fd, handle, 0, src_buf, obj_size);
+
+		got_caching = gem_get_caching(drm_fd, handle);
+
+		enable_one_screen_and_wait(&ms_data);
+
+		/* skip CACHING_DISPLAY, some platforms do not have it */
+		if (i != 2)
+			igt_assert(got_caching == cache_levels[i]);
+	}
+
+	free(src_buf);
+	gem_close(drm_fd, handle);
+}
+
 static void fences_subtest(bool dpms)
 {
 	int i;
@@ -1927,6 +2011,12 @@ int main(int argc, char *argv[])
 	igt_subtest("gem-execbuf-stress-extra-wait")
 		gem_execbuf_stress_subtest(rounds, WAIT_STATUS | WAIT_EXTRA);
 
+	/* power-wake reference tests */
+	igt_subtest("pm-tiling")
+		pm_test_tiling();
+	igt_subtest("pm-caching")
+		pm_test_caching();
+
 	igt_fixture
 		teardown_environment();
 
-- 
2.6.2