[igt-dev] [PATCH i-g-t v2 2/2] tests/i915_pm_rpm: use device coherent mapping instead of mmap_gtt

[Ramalingam C]

Since on new discrete GPUs we dont have the mappable aperture, if that
is acceptable for the test purpose, we should use GEM_MMAP_OFFSET.
Hence using gem_mmap_device_coherent() which wraps the mmap options in
the order of gem_mmap_offset / gem_mmap / mmap_gtt

Incase of fencing/gtt related tests, we mandate the existance of the
mmap_gtt.

v2:
  3 tests are skipped based on mappable aperture and tiling support

Signed-off-by: Ramalingam C <ramalingam.c at intel.com>
---
 tests/i915/i915_pm_rpm.c | 26 +++++++++++++++++++-------
 1 file changed, 19 insertions(+), 7 deletions(-)

diff --git a/tests/i915/i915_pm_rpm.c b/tests/i915/i915_pm_rpm.c
index 3d7343240802..5ad2d833d53b 100644
--- a/tests/i915/i915_pm_rpm.c
+++ b/tests/i915/i915_pm_rpm.c
@@ -1535,7 +1535,7 @@ static void fill_igt_fb(struct igt_fb *fb, uint32_t color)
 	int i;
 	uint32_t *ptr;
 
-	ptr = gem_mmap__gtt(drm_fd, fb->gem_handle, fb->size, PROT_WRITE);
+	ptr = gem_mmap__device_coherent(drm_fd, fb->gem_handle, 0, fb->size, PROT_WRITE);
 	for (i = 0; i < fb->size/sizeof(uint32_t); i++)
 		ptr[i] = color;
 	igt_assert(munmap(ptr, fb->size) == 0);
@@ -2016,16 +2016,20 @@ igt_main_args("", long_options, help_str, opt_handler, NULL)
 	/* GEM */
 	igt_subtest("gem-mmap-cpu")
 		gem_mmap_subtest(false);
-	igt_subtest("gem-mmap-gtt")
+	igt_subtest("gem-mmap-gtt") {
+		gem_require_mappable_ggtt(drm_fd);
 		gem_mmap_subtest(true);
+	}
 	igt_subtest("gem-pread")
 		gem_pread_subtest();
 	igt_subtest("gem-execbuf")
 		gem_execbuf_subtest();
 	igt_subtest("gem-idle")
 		gem_idle_subtest();
-	igt_subtest("gem-evict-pwrite")
+	igt_subtest("gem-evict-pwrite") {
+		gem_require_mappable_ggtt(drm_fd);
 		gem_evict_pwrite_subtest();
+	}
 
 	/* Planes and cursors */
 	igt_subtest("cursor")
@@ -2058,10 +2062,14 @@ igt_main_args("", long_options, help_str, opt_handler, NULL)
 		dpms_mode_unset_subtest(SCREEN_TYPE_LPSP);
 	igt_subtest("dpms-mode-unset-non-lpsp")
 		dpms_mode_unset_subtest(SCREEN_TYPE_NON_LPSP);
-	igt_subtest("fences")
+	igt_subtest("fences") {
+		gem_require_mappable_ggtt(drm_fd);
 		fences_subtest(false);
-	igt_subtest("fences-dpms")
+	}
+	igt_subtest("fences-dpms") {
+		gem_require_mappable_ggtt(drm_fd);
 		fences_subtest(true);
+	}
 
 	/* Modeset stress */
 	igt_subtest("modeset-lpsp-stress")
@@ -2102,10 +2110,14 @@ igt_main_args("", long_options, help_str, opt_handler, NULL)
 		gem_execbuf_stress_subtest(rounds, WAIT_STATUS | WAIT_EXTRA);
 
 	/* power-wake reference tests */
-	igt_subtest("pm-tiling")
+	igt_subtest("pm-tiling") {
+		gem_require_mappable_ggtt(drm_fd);
 		pm_test_tiling();
-	igt_subtest("pm-caching")
+	}
+	igt_subtest("pm-caching") {
+		gem_require_mappable_ggtt(drm_fd);
 		pm_test_caching();
+	}
 
 	igt_fixture
 		teardown_environment();
-- 
2.20.1