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DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Aug 2023 16:26:36.9927 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3bd70db2-99a6-4c3e-71e1-08db943e68d9 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.118.232]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000E9DC.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB8431 X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.20 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: meriton@nvidia.com, khoav@nvidia.com Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: "kernel-team" BugLink: https://bugs.launchpad.net/bugs/2029505 The following debugfs nodes are added: * ddr_thermal_throttling_state - shows current ddr thermal throttling state. * ddr_thermal_throttling_event_count - shows ddr thermal throttle event count. Signed-off-by: Jitendra Lanka --- drivers/platform/mellanox/mlxbf-ptm.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/platform/mellanox/mlxbf-ptm.c b/drivers/platform/mellanox/mlxbf-ptm.c index eb4460cb058b..59ac99695825 100644 --- a/drivers/platform/mellanox/mlxbf-ptm.c +++ b/drivers/platform/mellanox/mlxbf-ptm.c @@ -26,6 +26,8 @@ #define MLNX_PTM_GET_POWER_ENVELOPE 0x8200010B #define MLNX_PTM_GET_ATX_PWR_STATE 0x8200010C #define MLNX_PTM_GET_CUR_PPROFILE 0x8200010D +#define MLNX_PTM_GET_DDR_TTHROTTLE 0x8200010E +#define MLNX_PTM_GET_DDR_TEMP_EVT_CTR 0x8200010F #define MLNX_POWER_ERROR 300 @@ -172,6 +174,23 @@ static int current_pprofile_show(void *data, u64 *val) DEFINE_SIMPLE_ATTRIBUTE(current_pprofile_fops, current_pprofile_show, NULL, "%llu\n"); +static int ddr_thermal_throttling_state_show(void *data, u64 *val) +{ + *val = smc_call0(MLNX_PTM_GET_DDR_TTHROTTLE); + + return 0; +} +DEFINE_SIMPLE_ATTRIBUTE(ddr_thermal_throttling_state_fops, + ddr_thermal_throttling_state_show, NULL, "%llu\n"); + +static int ddr_thermal_evt_counter_show(void *data, u64 *val) +{ + *val = smc_call0(MLNX_PTM_GET_DDR_TEMP_EVT_CTR); + + return 0; +} +DEFINE_SIMPLE_ATTRIBUTE(ddr_thermal_evt_counter_fops, + ddr_thermal_evt_counter_show, NULL, "%llu\n"); static int __init mlxbf_ptm_init(void) { @@ -212,6 +231,10 @@ static int __init mlxbf_ptm_init(void) NULL, &atx_status_fops); debugfs_create_file("active_power_profile", 0444, status, NULL, ¤t_pprofile_fops); + debugfs_create_file("ddr_thermal_throttling_event_count", 0444, status, + NULL, &ddr_thermal_evt_counter_fops); + debugfs_create_file("ddr_thermal_throttling_state", 0444, status, + NULL, &ddr_thermal_throttling_state_fops); return 0; }