[igt-dev] [PATCH i-g-t] tests/i915/i915_pm_dc: Validate display enters to DC9 state
Jigar Bhatt
jigar.bhatt at intel.com
Mon Jan 18 11:48:10 UTC 2021
From: jbhatt <jigar.bhatt at intel.com>
Signed-off-by: jbhatt <jigar.bhatt at intel.com>
---
tests/i915/i915_pm_dc.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c
index 30c6024..679ac94 100644
--- a/tests/i915/i915_pm_dc.c
+++ b/tests/i915/i915_pm_dc.c
@@ -384,6 +384,25 @@ static void test_dc_state_dpms(data_t *data, int dc_flag)
cleanup_dc_dpms(data);
}
+static bool check_dc9(uint32_t debugfs_fd, int prev_dc5, int prev_dc6)
+{
+ char buf[4096];
+ char *str;
+ igt_debugfs_simple_read(debugfs_fd, "i915_pm_req_res_info", buf, sizeof(buf));
+ str = strstr(buf, "DC9 Ready = ");
+ igt_assert_f((str&&strlen(str)>12&&str[12]=='y'&&strstr(str,"yes")), "Not in DC9 ready\n");
+ return igt_wait((read_dc_counter(debugfs_fd, CHECK_DC5)>prev_dc5 || read_dc_counter(debugfs_fd, CHECK_DC6)>prev_dc6),3000,100);
+}
+static void test_dc9_dpms(data_t *data)
+{
+ require_dc_counter(data->debugfs_fd, CHECK_DC5);
+ require_dc_counter(data->debugfs_fd, CHECK_DC6);
+ int dc5_prev=read_dc_counter(data->debugfs_fd, CHECK_DC5);
+ int dc6_prev=read_dc_counter(data->debugfs_fd, CHECK_DC6);
+ dpms_off(data);
+ igt_assert_f(check_dc9(data->debugfs_fd,dc5_prev,dc6_prev),"\n Not in DC9");
+ dpms_on(data);
+}
IGT_TEST_DESCRIPTION("These tests validate Display Power DC states");
int main(int argc, char *argv[])
{
@@ -449,6 +468,10 @@ int main(int argc, char *argv[])
test_dc_state_dpms(&data, CHECK_DC6);
}
+ igt_describe("This test validates display engine entry to DC9 state");
+ igt_subtest("dc9-dpms") {
+ test_dc9_dpms(&data);
+ }
igt_fixture {
free(data.pwr_dmn_info);
close(data.debugfs_fd);
--
2.8.1
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