---
tests/kms_frontbuffer_tracking.c | 178 +++++++++++++++++++++++++++++++++++++--
1 file changed, 170 insertions(+), 8 deletions(-)
diff --git a/tests/kms_frontbuffer_tracking.c b/tests/kms_frontbuffer_tracking.c
index 1601cab..4b87273 100644
--- a/tests/kms_frontbuffer_tracking.c
+++ b/tests/kms_frontbuffer_tracking.c
@@ -34,7 +34,7 @@
IGT_TEST_DESCRIPTION("Test the Kernel's frontbuffer tracking mechanism and "
- "its related features: FBC and PSR");
+ "its related features: FBC, PSR and DRRS");
/*
* One of the aspects of this test is that, for every subtest, we try different
@@ -105,8 +105,9 @@ struct test_mode {
FEATURE_NONE = 0,
FEATURE_FBC = 1,
FEATURE_PSR = 2,
- FEATURE_COUNT = 4,
- FEATURE_DEFAULT = 4,
+ FEATURE_DRRS = 4,
+ FEATURE_COUNT = 8,
+ FEATURE_DEFAULT = 8,
} feature;
/* Possible pixel formats. We just use FORMAT_DEFAULT for most tests and
@@ -156,6 +157,7 @@ struct rect {
struct {
int fd;
int debugfs;
+ int drrs_debugfs_fd;
drmModeResPtr res;
drmModeConnectorPtr connectors[MAX_CONNECTORS];
drmModeEncoderPtr encoders[MAX_ENCODERS];
@@ -182,6 +184,13 @@ struct {
.can_test = false,
};
+#define MAX_DRRS_STATUS_BUF_LEN 256
+
+struct {
+ bool can_test;
+} drrs = {
+ .can_test = false,
+};
#define SINK_CRC_SIZE 12
typedef struct {
@@ -825,6 +834,60 @@ static void psr_print_status(void)
igt_info("PSR status:\n%s\n", buf);
}
+void drrs_set(unsigned int val)
+{
+ char buf[2];
+
+ igt_debug("Manually %sabling DRRS. %llu\n", val ? "en" : "dis", val);
+ snprintf(buf, sizeof(buf), "%d", val);
+ igt_assert_eq(write(drm.drrs_debugfs_fd,
+ buf, strlen(buf)), strlen(buf));
+}
+
+static bool is_drrs_high(void)
+{
+ char buf[MAX_DRRS_STATUS_BUF_LEN];
+
+ debugfs_read("i915_drrs_status", buf);
+ return strstr(buf, "DRRS_HIGH_RR");
+}
+
+static bool is_drrs_low(void)
+{
+ char buf[MAX_DRRS_STATUS_BUF_LEN];
+
+ debugfs_read("i915_drrs_status", buf);
+ return strstr(buf, "DRRS_LOW_RR");
+}
+
+static bool is_drrs_supported(void)
+{
+ char buf[MAX_DRRS_STATUS_BUF_LEN];
+
+ debugfs_read("i915_drrs_status", buf);
+ return strstr(buf, "DRRS Supported: Yes");
+}
+
+static bool is_drrs_inactive(void)
+{
+ char buf[MAX_DRRS_STATUS_BUF_LEN];
+
+ debugfs_read("i915_drrs_status", buf);
+
+ if (strstr(buf, "DRRS_State: "))
+ return false;
+
+ return true;
+}
+
+static void drrs_print_status(void)
+{
+ char buf[MAX_DRRS_STATUS_BUF_LEN];
+
+ debugfs_read("i915_drrs_status", buf);
+ igt_info("DRRS STATUS :\n%s\n", buf);
+}
+
static struct timespec fbc_get_last_action(void)
{
struct timespec ret = { 0, 0 };
@@ -935,10 +998,17 @@ static bool psr_wait_until_enabled(void)
return igt_wait(psr_is_enabled(), 5000, 1);
}
+static bool drrs_wait_until_rr_switch_to_low(void)
+{
+ return igt_wait(is_drrs_low(), 5000, 1);
+}
+
#define fbc_enable() igt_set_module_param_int("enable_fbc", 1)
#define fbc_disable() igt_set_module_param_int("enable_fbc", 0)
#define psr_enable() igt_set_module_param_int("enable_psr", 1)
#define psr_disable() igt_set_module_param_int("enable_psr", 0)
+#define drrs_enable() drrs_set(1)
+#define drrs_disable() drrs_set(0)
static void get_sink_crc(sink_crc_t *crc, bool mandatory)
{
@@ -1184,6 +1254,7 @@ static void disable_features(const struct test_mode *t)
fbc_disable();
psr_disable();
+ drrs_disable();
}
static void *busy_thread_func(void *data)
@@ -1508,6 +1579,12 @@ static void teardown_crcs(void)
igt_pipe_crc_free(pipe_crc);
}
+static void teardown_drrs(void)
+{
+ if (drm.drrs_debugfs_fd != -1)
+ close(drm.drrs_debugfs_fd);
+}
+
static bool fbc_supported_on_chipset(void)
{
char buf[128];
@@ -1577,6 +1654,29 @@ static void teardown_psr(void)
{
}
+static void setup_drrs(void)
+{
+ if (get_connector(prim_mode_params.connector_id)->connector_type !=
+ DRM_MODE_CONNECTOR_eDP) {
+ igt_info("Can't test DRRS: no usable eDP screen.\n");
+ return;
+ }
+
+ if (!is_drrs_supported()) {
+ igt_info("Can't test DRRS: Not supported.\n");
+ return;
+ }
+
+ drm.drrs_debugfs_fd = openat(drm.debugfs, "i915_drrs_ctl", O_WRONLY);
+
+ if (drm.drrs_debugfs_fd > 0) {
+ drrs.can_test = true;
+ } else {
+ igt_info("Can't test DRRS: Debugfs entry i915_drrs_ctl not found.\n");
+ drrs.can_test = false;
+ }
+}
+
static void setup_environment(void)
{
setup_drm();
@@ -1584,6 +1684,7 @@ static void setup_environment(void)
setup_fbc();
setup_psr();
+ setup_drrs();
setup_crcs();
}
@@ -1596,6 +1697,7 @@ static void teardown_environment(void)
teardown_psr();
teardown_fbc();
teardown_modeset();
+ teardown_drrs();
teardown_drm();
}
@@ -1662,6 +1764,11 @@ static void do_flush(const struct test_mode *t)
#define ASSERT_PSR_ENABLED (1 << 6)
#define ASSERT_PSR_DISABLED (1 << 7)
+#define DRRS_ASSERT_FLAGS (7 << 8)
+#define ASSERT_DRRS_HIGH (1 << 8)
+#define ASSERT_DRRS_LOW (1 << 9)
+#define ASSERT_DRRS_INACTIVE (1 << 10)
+
static int adjust_assertion_flags(const struct test_mode *t, int flags)
{
if (!(flags & DONT_ASSERT_FEATURE_STATUS)) {
@@ -1669,12 +1776,17 @@ static int adjust_assertion_flags(const struct test_mode *t, int flags)
flags |= ASSERT_FBC_ENABLED;
if (!(flags & ASSERT_PSR_DISABLED))
flags |= ASSERT_PSR_ENABLED;
+ if (!((flags & ASSERT_DRRS_LOW) ||
+ (flags & ASSERT_DRRS_INACTIVE)))
+ flags |= ASSERT_DRRS_HIGH;
}
if ((t->feature & FEATURE_FBC) == 0)
flags &= ~FBC_ASSERT_FLAGS;
if ((t->feature & FEATURE_PSR) == 0)
flags &= ~PSR_ASSERT_FLAGS;
+ if ((t->feature & FEATURE_DRRS) == 0)
+ flags &= ~DRRS_ASSERT_FLAGS;
return flags;
}
@@ -1706,6 +1818,23 @@ static void do_status_assertions(int flags)
return;
}
+ if (flags & ASSERT_DRRS_HIGH) {
+ if (!is_drrs_high()) {
+ drrs_print_status();
+ igt_assert_f(false, "DRRS HIGH\n");
+ }
+ } else if (flags & ASSERT_DRRS_LOW) {
+ if (!drrs_wait_until_rr_switch_to_low()) {
+ drrs_print_status();
+ igt_assert_f(false, "DRRS LOW\n");
+ }
+ } else if (flags & ASSERT_DRRS_INACTIVE) {
+ if (!is_drrs_inactive()) {
+ drrs_print_status();
+ igt_assert_f(false, "DRRS INACTIVE\n");
+ }
+ }
+
if (flags & ASSERT_FBC_ENABLED) {
igt_require(!fbc_not_enough_stolen());
igt_require(!fbc_stride_not_supported());
@@ -1833,6 +1962,8 @@ static void enable_features_for_test(const struct test_mode *t)
fbc_enable();
if (t->feature & FEATURE_PSR)
psr_enable();
+ if (t->feature & FEATURE_DRRS)
+ drrs_enable();
}
static void check_test_requirements(const struct test_mode *t)
@@ -1852,6 +1983,18 @@ static void check_test_requirements(const struct test_mode *t)
"Can't test PSR without sink CRCs\n");
}
+ if (t->feature & FEATURE_DRRS)
+ igt_require_f(drrs.can_test,
+ "Can't test DRRS with the current outputs\n");
+
+ /*
+ * In kernel, When PSR is enabled, DRRS will be disabled. So If a test
+ * case needs DRRS + PSR enabled, that will be skipped.
+ */
+ igt_require_f(!((t->feature & FEATURE_PSR) &&
+ (t->feature & FEATURE_DRRS)),
+ "Can't test PSR and DRRS together\n");
+
if (opt.only_pipes != PIPE_COUNT)
igt_require(t->pipes == opt.only_pipes);
}
@@ -1973,7 +2116,7 @@ static void rte_subtest(const struct test_mode *t)
unset_all_crtcs();
do_assertions(ASSERT_FBC_DISABLED | ASSERT_PSR_DISABLED |
- DONT_ASSERT_CRC);
+ DONT_ASSERT_CRC | ASSERT_DRRS_INACTIVE);
enable_prim_screen_and_wait(t);
set_cursor_for_test(t, &prim_mode_params);
@@ -2065,6 +2208,13 @@ static void draw_subtest(const struct test_mode *t)
if (op_disables_psr(t, t->method))
assertions |= ASSERT_PSR_DISABLED;
+ /*
+ * On FBS_INDIVIDUAL, write to offscreen plane will not touch the
+ * current frambuffer. Hence assert for DRRS_LOW.
+ */
+ if ((t->fbs == FBS_INDIVIDUAL) && (t->screen == SCREEN_OFFSCREEN))
+ assertions |= ASSERT_DRRS_LOW;
+
prepare_subtest(t, pattern);
target = pick_target(t, params);
@@ -2273,7 +2423,11 @@ static void slow_draw_subtest(const struct test_mode *t)
sleep(2);
update_wanted_crc(t, &pattern->crcs[t->format][r]);
- do_assertions(0);
+
+ if (t->feature & FEATURE_DRRS)
+ do_assertions(ASSERT_DRRS_LOW);
+ else
+ do_assertions(0);
}
}
@@ -2882,14 +3036,14 @@ static void suspend_subtest(const struct test_mode *t)
sleep(5);
igt_system_suspend_autoresume(SUSPEND_STATE_MEM, SUSPEND_TEST_NONE);
sleep(5);
- do_assertions(0);
+ do_assertions(ASSERT_DRRS_LOW);
unset_all_crtcs();
sleep(5);
igt_system_suspend_autoresume(SUSPEND_STATE_MEM, SUSPEND_TEST_NONE);
sleep(5);
do_assertions(ASSERT_FBC_DISABLED | ASSERT_PSR_DISABLED |
- DONT_ASSERT_CRC);
+ DONT_ASSERT_CRC | ASSERT_DRRS_INACTIVE);
set_mode_for_params(params);
do_assertions(0);
@@ -3371,6 +3525,14 @@ static const char *feature_str(int feature)
return "psr";
case FEATURE_FBC | FEATURE_PSR:
return "fbcpsr";
+ case FEATURE_DRRS:
+ return "drrs";
+ case FEATURE_FBC | FEATURE_DRRS:
+ return "fbcdrrs";
+ case FEATURE_PSR | FEATURE_DRRS:
+ return "psrdrrs";
+ case FEATURE_FBC | FEATURE_PSR | FEATURE_DRRS:
+ return "fbcpsrdrrs";
default:
igt_assert(false);
}
@@ -3635,7 +3797,7 @@ int main(int argc, char *argv[])
tilingchange_subtest(&t);
}
- if (t.feature & FEATURE_PSR)
+ if ((t.feature & FEATURE_PSR) || (t.feature & FEATURE_DRRS))
igt_subtest_f("%s-slowdraw", feature_str(t.feature))
slow_draw_subtest(&t);
--
1.9.1
