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Thu, 1 Jun 2023 18:29:41 -0500 From: Mario Limonciello To: Rafael Wysocki , , CC: , , , , , S-k Shyam-sundar , Natikar Basavaraj , Mario Limonciello Subject: [PATCH v3 2/4] ACPI: x86: Add pm_debug_messages for LPS0 _DSM state tracking Date: Thu, 1 Jun 2023 18:29:21 -0500 Message-ID: <20230601232923.1248-2-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230601232923.1248-1-mario.limonciello@amd.com> References: <20230601232923.1248-1-mario.limonciello@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT053:EE_|MN0PR12MB5906:EE_ X-MS-Office365-Filtering-Correlation-Id: 43636962-3cae-4cfc-11fa-08db62f813d8 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: jVo+aK7RPjTAGF4SpCX9Nd5F6z6o2p3wasZ0JCgyU0nUcPK0oiSekaDfYVfFi03cuUka6MgK4fpsurYAPgev1q+M9hHJJO6XVs73xSpuL7NR8c7n7mNdSuZLhL+Y3OD4iU0s3Esv+DyHcfa97BeY8h7XOYc5Fy4XNiiWX2VyFFOst6ldEzoRH+c/ml1/YD1hhBBc58SF9Kdz72eghKIRrqKo3BmlrPPU2VdZTuYwaRnXtu36fnDYAHtABIIWgCxd9Utac1Ex7n0JWsGTT34pEhti7mwj/s5lXVoFQOdpyHSXbMjv67V6AGKlMGe3dQo/kTV708OIKDZqN3oPMYtPZEKiGHSiOVkb87CGk4KPeMH5DFcQ7zu3CRsyDdlqeb2Gcfq0uMjbYlky1mnjQp7M5zOJpBChEApEahp6YJsuv8g/G3yHkvE0Z9ILswmLUxxKNnR/tHDXYVyZGMLk9c6xgG/7wA8QaLBt0xhMNl3fazWzfO4fXPOam2DKJR+i5m50GzqJzlK3KH3caa+8GnPyihHsyogey/5kGBozTPqnxeKDbb2y+ActNRv7/hh2k5JeUpH1ZRbRBqAU0cW6dmgLfwpKEe81JxGPNgR+pJAXipQ5C4usG5jjpavAJRymQY/nb+oSCPgdcbumlhoWqB4Lv50aipId59pwzptIKl9smKvo/B05LkW9KK/9j02Vgnb2RBQBazrhd3WxvbVzu2La2tB2BIild1gyplfVGRu57Pjxd8N4CJGXqWl6ke33mXtQLX4LgErO5HjDZe2t7ra+NA== X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(376002)(136003)(396003)(346002)(39860400002)(451199021)(46966006)(40470700004)(36840700001)(356005)(82740400003)(8676002)(8936002)(2906002)(16526019)(41300700001)(86362001)(82310400005)(81166007)(7696005)(186003)(2616005)(316002)(110136005)(54906003)(1076003)(26005)(478600001)(6666004)(336012)(426003)(83380400001)(5660300002)(36756003)(4326008)(47076005)(45080400002)(70206006)(70586007)(40460700003)(44832011)(36860700001)(40480700001)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Jun 2023 23:29:42.6614 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 43636962-3cae-4cfc-11fa-08db62f813d8 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT053.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB5906 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1767545282795562834?= X-GMAIL-MSGID: =?utf-8?q?1767545282795562834?= Enabling debugging messages for the state requires turning on dynamic debugging for the file. To make it more accessible, use `pm_debug_messages` and clearer strings for what is happening. Signed-off-by: Mario Limonciello --- drivers/acpi/x86/s2idle.c | 52 ++++++++++++++++++++++++++++++++++----- 1 file changed, 46 insertions(+), 6 deletions(-) diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c index e499c60c4579..7681f6ecab67 100644 --- a/drivers/acpi/x86/s2idle.c +++ b/drivers/acpi/x86/s2idle.c @@ -59,6 +59,7 @@ static int lps0_dsm_func_mask; static guid_t lps0_dsm_guid_microsoft; static int lps0_dsm_func_mask_microsoft; +static int lps0_dsm_state; /* Device constraint entry structure */ struct lpi_device_info { @@ -320,6 +321,44 @@ static void lpi_check_constraints(void) } } +static bool acpi_s2idle_vendor_amd(void) +{ + return boot_cpu_data.x86_vendor == X86_VENDOR_AMD; +} + +static const char *acpi_sleep_dsm_state_to_str(unsigned int state) +{ + if (lps0_dsm_func_mask_microsoft || !acpi_s2idle_vendor_amd()) { + switch (state) { + case ACPI_LPS0_SCREEN_OFF: + return "screen off"; + case ACPI_LPS0_SCREEN_ON: + return "screen on"; + case ACPI_LPS0_ENTRY: + return "lps0 entry"; + case ACPI_LPS0_EXIT: + return "lps0 exit"; + case ACPI_LPS0_MS_ENTRY: + return "lps0 ms entry"; + case ACPI_LPS0_MS_EXIT: + return "lps0 ms exit"; + } + } else { + switch (state) { + case ACPI_LPS0_SCREEN_ON_AMD: + return "screen on"; + case ACPI_LPS0_SCREEN_OFF_AMD: + return "screen off"; + case ACPI_LPS0_ENTRY_AMD: + return "lps0 entry"; + case ACPI_LPS0_EXIT_AMD: + return "lps0 exit"; + } + } + + return "unknown"; +} + static void acpi_sleep_run_lps0_dsm(unsigned int func, unsigned int func_mask, guid_t dsm_guid) { union acpi_object *out_obj; @@ -331,14 +370,15 @@ static void acpi_sleep_run_lps0_dsm(unsigned int func, unsigned int func_mask, g rev_id, func, NULL); ACPI_FREE(out_obj); - acpi_handle_debug(lps0_device_handle, "_DSM function %u evaluation %s\n", - func, out_obj ? "successful" : "failed"); + lps0_dsm_state = func; + if (pm_debug_messages_on) { + acpi_handle_info(lps0_device_handle, + "%s transitioned to state %s\n", + out_obj ? "Successfully" : "Failed to", + acpi_sleep_dsm_state_to_str(lps0_dsm_state)); + } } -static bool acpi_s2idle_vendor_amd(void) -{ - return boot_cpu_data.x86_vendor == X86_VENDOR_AMD; -} static int validate_dsm(acpi_handle handle, const char *uuid, int rev, guid_t *dsm_guid) {