From: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
Daniel thought fences were not surviving runtime PM on DPMS, so we
wrote this test to check. The good news is that the test passed, so
there's no need for a Kernel patch, at least on the Kernel I tested.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
---
tests/pm_rpm.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
diff --git a/tests/pm_rpm.c b/tests/pm_rpm.c
index 84c71bd..5e520da 100644
--- a/tests/pm_rpm.c
+++ b/tests/pm_rpm.c
@@ -1704,6 +1704,74 @@ static void planes_subtest(bool universal, bool dpms)
}
}
+static void fences_subtest(bool dpms)
+{
+ uint32_t connector_id, crtc_id = 0;
+ drmModeModeInfoPtr mode;
+ struct igt_fb scanout_fb;
+ int rc, i;
+ uint32_t *buf_ptr;
+ uint32_t tiling = false, swizzle;
+
+ disable_all_screens(&ms_data);
+ igt_assert(wait_for_suspended());
+
+ igt_require(find_connector_for_modeset(&ms_data, SCREEN_TYPE_ANY,
+ &connector_id, &mode));
+
+ crtc_id = ms_data.res->crtcs[0];
+ igt_assert(crtc_id);
+
+ igt_create_fb(drm_fd, mode->hdisplay, mode->vdisplay,
+ DRM_FORMAT_XRGB8888, true, &scanout_fb);
+
+ /* Even though we passed "true" as the tiling argument, double-check
+ * that the fb is really tiled. */
+ gem_get_tiling(drm_fd, scanout_fb.gem_handle, &tiling, &swizzle);
+ igt_assert(tiling);
+
+ buf_ptr = gem_mmap__gtt(drm_fd, scanout_fb.gem_handle,
+ scanout_fb.size, PROT_WRITE | PROT_READ);
+ for (i = 0; i < scanout_fb.size/sizeof(uint32_t); i++)
+ buf_ptr[i] = i;
+
+ rc = drmModeSetCrtc(drm_fd, crtc_id, scanout_fb.fb_id, 0, 0,
+ &connector_id, 1, mode);
+ igt_assert(rc == 0);
+ igt_assert(wait_for_active());
+
+ if (dpms)
+ disable_all_screens_dpms(&ms_data);
+ else
+ disable_all_screens(&ms_data);
+ igt_assert(wait_for_suspended());
+
+ for (i = 0; i < scanout_fb.size/sizeof(uint32_t); i++)
+ igt_assert_eq(buf_ptr[i], i);
+ igt_assert(wait_for_suspended());
+
+ if (dpms) {
+ drmModeConnectorPtr c = NULL;
+
+ for (i = 0; i < ms_data.res->count_connectors; i++)
+ if (ms_data.connectors[i]->connector_id == connector_id)
+ c = ms_data.connectors[i];
+ igt_assert(c);
+
+ kmstest_set_connector_dpms(drm_fd, c, DRM_MODE_DPMS_ON);
+ } else {
+ rc = drmModeSetCrtc(drm_fd, crtc_id, scanout_fb.fb_id, 0, 0,
+ &connector_id, 1, mode);
+ igt_assert(rc == 0);
+ }
+ igt_assert(wait_for_active());
+
+ for (i = 0; i < scanout_fb.size/sizeof(uint32_t); i++)
+ igt_assert_eq(buf_ptr[i], i);
+
+ igt_assert(munmap(buf_ptr, scanout_fb.size) == 0);
+}
+
int rounds = 50;
bool stay = false;
@@ -1808,6 +1876,10 @@ int main(int argc, char *argv[])
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")
+ fences_subtest(false);
+ igt_subtest("fences-dpms")
+ fences_subtest(true);
/* Modeset stress */
igt_subtest("modeset-lpsp-stress")
--
2.0.1
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