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Wysocki" , CC: Deepak Sharma , Alex Deucher , Mario Limonciello , Steven Noonan , Nathan Fontenot , Jinzhou Su , Xiaojian Du , Perry Yuan , Jassmine Meng , Borislav Petkov , Peter Zijlstra , Ingo Molnar , Viresh Kumar , Steven Rostedt , "Giovanni Gherdovich" , , Huang Rui Subject: [PATCH RESEND v6 6/9] cpupower: Add AMD P-State sysfs definition and access helper Date: Wed, 16 Feb 2022 15:35:55 +0800 Message-ID: <20220216073558.751071-7-ray.huang@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220216073558.751071-1-ray.huang@amd.com> References: <20220216073558.751071-1-ray.huang@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 7313c0e2-28c3-4add-e741-08d9f11f1e3b X-MS-TrafficTypeDiagnostic: DM6PR12MB3370:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:5797; X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 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:(13230001)(4636009)(36840700001)(46966006)(40470700004)(81166007)(7696005)(2616005)(40460700003)(82310400004)(508600001)(36860700001)(26005)(16526019)(356005)(186003)(1076003)(336012)(426003)(47076005)(83380400001)(86362001)(4326008)(2906002)(8676002)(316002)(36756003)(70586007)(70206006)(8936002)(54906003)(110136005)(7416002)(5660300002)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Feb 2022 07:37:00.2533 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7313c0e2-28c3-4add-e741-08d9f11f1e3b 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: BN8NAM11FT046.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3370 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Introduce the marco definitions and access helper function for AMD P-State sysfs interfaces such as each performance goals and frequency levels in amd helper file. They will be used to read the sysfs attribute from AMD P-State cpufreq driver for cpupower utilities. Signed-off-by: Huang Rui --- tools/power/cpupower/utils/helpers/amd.c | 30 ++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/tools/power/cpupower/utils/helpers/amd.c b/tools/power/cpupower/utils/helpers/amd.c index 97f2c857048e..4d45d1b44164 100644 --- a/tools/power/cpupower/utils/helpers/amd.c +++ b/tools/power/cpupower/utils/helpers/amd.c @@ -8,7 +8,10 @@ #include #include "helpers/helpers.h" +#include "cpufreq.h" +#include "acpi_cppc.h" +/* ACPI P-States Helper Functions for AMD Processors ***************/ #define MSR_AMD_PSTATE_STATUS 0xc0010063 #define MSR_AMD_PSTATE 0xc0010064 #define MSR_AMD_PSTATE_LIMIT 0xc0010061 @@ -146,4 +149,31 @@ int amd_pci_get_num_boost_states(int *active, int *states) pci_cleanup(pci_acc); return 0; } + +/* ACPI P-States Helper Functions for AMD Processors ***************/ + +/* AMD P-State Helper Functions ************************************/ +enum amd_pstate_value { + AMD_PSTATE_HIGHEST_PERF, + AMD_PSTATE_MAX_FREQ, + AMD_PSTATE_LOWEST_NONLINEAR_FREQ, + MAX_AMD_PSTATE_VALUE_READ_FILES, +}; + +static const char *amd_pstate_value_files[MAX_AMD_PSTATE_VALUE_READ_FILES] = { + [AMD_PSTATE_HIGHEST_PERF] = "amd_pstate_highest_perf", + [AMD_PSTATE_MAX_FREQ] = "amd_pstate_max_freq", + [AMD_PSTATE_LOWEST_NONLINEAR_FREQ] = "amd_pstate_lowest_nonlinear_freq", +}; + +static unsigned long amd_pstate_get_data(unsigned int cpu, + enum amd_pstate_value value) +{ + return cpufreq_get_sysfs_value_from_table(cpu, + amd_pstate_value_files, + value, + MAX_AMD_PSTATE_VALUE_READ_FILES); +} + +/* AMD P-State Helper Functions ************************************/ #endif /* defined(__i386__) || defined(__x86_64__) */