From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id B52656E217 for ; Mon, 22 Feb 2021 04:44:17 +0000 (UTC) From: Jigar Bhatt Date: Mon, 22 Feb 2021 10:16:45 +0530 Message-Id: <20210222044645.131579-1-jigar.bhatt@intel.com> In-Reply-To: <20210121083432.526247-1-jigar.bhatt@intel.com> References: <20210121083432.526247-1-jigar.bhatt@intel.com> MIME-Version: 1.0 Subject: [igt-dev] [PATCH i-g-t v4] 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 DC{5,6} counter reset method to validate DC9. Signed-off-by: Jigar Bhatt --- tests/i915/i915_pm_dc.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c index 30c6024..f901400 100644 --- a/tests/i915/i915_pm_dc.c +++ b/tests/i915/i915_pm_dc.c @@ -384,6 +384,32 @@ 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) +{ + /* + * 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)>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); + igt_disable_runtime_pm(); + data->runtime_suspend_disabled = true; + dpms_off(data); + dpms_on(data); + data->runtime_suspend_disabled = false; + igt_restore_runtime_pm(); + igt_setup_runtime_pm(data->drm_fd); + dpms_off(data); + igt_assert_f(!check_dc9(data->debugfs_fd,dc5_prev,dc6_prev),"Not in DC9"); + dpms_on(data); +} + IGT_TEST_DESCRIPTION("These tests validate Display Power DC states"); int main(int argc, char *argv[]) { @@ -449,6 +475,11 @@ 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