From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id E0C8210E527 for ; Tue, 17 Jan 2023 08:52:00 +0000 (UTC) From: Mohammed Thasleem To: igt-dev@lists.freedesktop.org Date: Tue, 17 Jan 2023 14:20:55 +0530 Message-Id: <20230117085055.128552-1-mohammed.thasleem@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [igt-dev] [PATCH RFC i-g-t] [RFC] tests/i915/i915_pm_dc: Add DC6 test for mtl List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: The flow for DC6 validation has changed for MTL. DC6 state achieved based on PKGC10 entry. This test validates PKGC10 entry and confirm DC6 achieved. Signed-off-by: Mohammed Thasleem --- tests/i915/i915_pm_dc.c | 39 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 38 insertions(+), 1 deletion(-) diff --git a/tests/i915/i915_pm_dc.c b/tests/i915/i915_pm_dc.c index ba49d014..c30269a6 100644 --- a/tests/i915/i915_pm_dc.c +++ b/tests/i915/i915_pm_dc.c @@ -45,6 +45,7 @@ #define PWR_DOMAIN_INFO "i915_power_domain_info" #define RPM_STATUS "i915_runtime_pm_status" #define KMS_HELPER "/sys/module/drm_kms_helper/parameters/" +#define PACKAGE_STATE_PATH "/sys/kernel/debug/pmc_core/" #define KMS_POLL_DISABLE 0 #define DC9_RESETS_DC_COUNTERS(devid) (!(IS_DG1(devid) || IS_DG2(devid))) @@ -60,6 +61,8 @@ typedef struct { int drm_fd; int msr_fd; int debugfs_fd; + int pmc_fd; + uint32_t ver; uint32_t devid; char *debugfs_dump; igt_display_t display; @@ -485,6 +488,36 @@ static void test_dc9_dpms(data_t *data) setup_dc9_dpms(data, dc_target); } +static unsigned int read_pk10_value(int pmc_fd) +{ + char buf[4096]; + char *str; + + igt_require((pmc_fd = open(PACKAGE_STATE_PATH, O_RDONLY)) >= 0); + + igt_debugfs_simple_read(pmc_fd, "package_cstate_show", + buf, sizeof(buf)); + igt_skip_on_f(!strstr(buf, "Package C10"), + "PK10 will be not supported.\n"); + str = strstr(buf, "Package C10"); + igt_assert_f(str, "PK10 value not available\n"); + + return get_dc_counter(str); +} + +static void test_pk10_dpms(data_t *data) +{ + unsigned int timeout_sec = 30; + unsigned int prev_value = 0, cur_value = 0; + + prev_value = read_pk10_value(data->pmc_fd); + dpms_off(data); + igt_wait((cur_value = read_pk10_value(data->pmc_fd)), + timeout_sec * 1000, 100); + igt_assert_f(cur_value > prev_value, "PK10 is not achieived.\n"); + dpms_on(data); +} + static void kms_poll_state_restore(int sig) { int sysfs_fd; @@ -506,6 +539,7 @@ igt_main igt_require(data.debugfs_fd != -1); kmstest_set_vt_graphics_mode(); data.devid = intel_get_drm_devid(data.drm_fd); + data.ver = intel_display_ver(data.devid); igt_pm_enable_sata_link_power_management(); igt_require(igt_setup_runtime_pm(data.drm_fd)); igt_require(igt_pm_dmc_loaded(data.debugfs_fd)); @@ -557,7 +591,10 @@ igt_main igt_subtest("dc6-dpms") { igt_require_f(igt_pm_pc8_plus_residencies_enabled(data.msr_fd), "PC8+ residencies not supported\n"); - test_dc_state_dpms(&data, CHECK_DC6); + if (data.ver == 14) + test_pk10_dpms(&data); + else + test_dc_state_dpms(&data, CHECK_DC6); } igt_describe("This test validates display engine entry to DC9 state"); -- 2.25.1