From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id C624F6E9A3 for ; Fri, 5 Feb 2021 09:13:12 +0000 (UTC) From: Jigar Bhatt Date: Fri, 5 Feb 2021 14:45:22 +0530 Message-Id: <20210205091522.770859-2-jigar.bhatt@intel.com> In-Reply-To: <20210205091522.770859-1-jigar.bhatt@intel.com> References: <20210121083432.526247-1-jigar.bhatt@intel.com> <20210205091522.770859-1-jigar.bhatt@intel.com> MIME-Version: 1.0 Subject: [igt-dev] [PATCH i-g-t v3] tests/i915/i915_pm_dc: Add DC9 igt test List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: igt-dev@lists.freedesktop.org Cc: jigar.bhatt@intel.com List-ID: DC9 igt test validation depends on DC9 Ready and DC{5,6} counters reset. When Display Engine enters to DC9, it resets DMC f/w and DC5/DC6 counter. We don't have a DC9 counter unlike DC{5,6} therefore this tests uses "DC9 Ready" from i915_pm_req_res_info debugfs and DC{5,6} counter reset method to validate DC9. Signed-off-by: Jigar Bhatt --- tests/i915/i915_pm_dc.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c index 30c6024..957d04a 100644 --- a/tests/i915/i915_pm_dc.c +++ b/tests/i915/i915_pm_dc.c @@ -384,6 +384,27 @@ 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]; + igt_skip_on_f(!igt_debugfs_simple_read(debugfs_fd, "i915_pm_req_res_info", buf, sizeof(buf)),"skipping DC9 test"); + igt_assert_f(strstr(buf, "DC9 Ready : yes"),"DC9 is not ready"); + /* + * since we do not have DC9 Counter, + * so we rely on dc5/dc6 counter reset to check if Display Engine was in DC9. + */ + return igt_wait((read_dc_counter(debugfs_fd, CHECK_DC5)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 +470,10 @@ 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 _______________________________________________ igt-dev mailing list igt-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/igt-dev