Add SMU13 fan minimum pwm OD setting support.

Signed-off-by: Evan Quan <evan.q...@amd.com>
---
 .../gpu/drm/amd/include/kgd_pp_interface.h    |  2 +
 drivers/gpu/drm/amd/pm/amdgpu_pm.c            | 45 ++++++++++++++++
 drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h       |  2 +
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c     |  2 +
 drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h  |  1 +
 .../drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c  | 51 ++++++++++++++++++-
 .../drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c  | 51 ++++++++++++++++++-
 7 files changed, 152 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h 
b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index e2eefc8d8edc..cac972cedce1 100644
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -118,6 +118,7 @@ enum pp_clock_type {
        OD_ACOUSTIC_LIMIT,
        OD_ACOUSTIC_TARGET,
        OD_FAN_TARGET_TEMPERATURE,
+       OD_FAN_MINIMUM_PWM,
 };
 
 enum amd_pp_sensors {
@@ -196,6 +197,7 @@ enum PP_OD_DPM_TABLE_COMMAND {
        PP_OD_EDIT_ACOUSTIC_LIMIT,
        PP_OD_EDIT_ACOUSTIC_TARGET,
        PP_OD_EDIT_FAN_TARGET_TEMPERATURE,
+       PP_OD_EDIT_FAN_MINIMUM_PWM,
 };
 
 struct pp_states_info {
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c 
b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 63edd45e224d..47a6ff398f7a 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -3832,6 +3832,43 @@ static umode_t fan_target_temperature_visible(struct 
amdgpu_device *adev)
        return umode;
 }
 
+static ssize_t fan_minimum_pwm_show(struct kobject *kobj,
+                                   struct kobj_attribute *attr,
+                                   char *buf)
+{
+       struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
+       struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
+
+       return (ssize_t)amdgpu_retrieve_od_settings(adev, OD_FAN_MINIMUM_PWM, 
buf);
+}
+
+static ssize_t fan_minimum_pwm_store(struct kobject *kobj,
+                                    struct kobj_attribute *attr,
+                                    const char *buf,
+                                    size_t count)
+{
+       struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
+       struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
+
+       return (ssize_t)amdgpu_distribute_custom_od_settings(adev,
+                                                            
PP_OD_EDIT_FAN_MINIMUM_PWM,
+                                                            buf,
+                                                            count);
+}
+
+static umode_t fan_minimum_pwm_visible(struct amdgpu_device *adev)
+{
+       umode_t umode = 0000;
+
+       if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE)
+               umode |= S_IRUSR | S_IRGRP | S_IROTH;
+
+       if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET)
+               umode |= S_IWUSR;
+
+       return umode;
+}
+
 static struct od_feature_set amdgpu_od_set = {
        .containers = {
                [0] = {
@@ -3877,6 +3914,14 @@ static struct od_feature_set amdgpu_od_set = {
                                                .store = 
fan_target_temperature_store,
                                        },
                                },
+                               [5] = {
+                                       .name = "fan_minimum_pwm",
+                                       .ops = {
+                                               .is_visible = 
fan_minimum_pwm_visible,
+                                               .show = fan_minimum_pwm_show,
+                                               .store = fan_minimum_pwm_store,
+                                       },
+                               },
                        },
                },
        },
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h 
b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
index 80d2ac1ecb9f..342c4d8318dc 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
@@ -324,6 +324,8 @@ struct config_table_setting
 #define OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET           BIT(7)
 #define OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE BIT(8)
 #define OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET      BIT(9)
+#define OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE                BIT(10)
+#define OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET             BIT(11)
 
 struct amdgpu_pm {
        struct mutex            mutex;
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c 
b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 22a6527139a6..d22ed5a272ce 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -2491,6 +2491,8 @@ static enum smu_clk_type smu_convert_to_smuclk(enum 
pp_clock_type type)
                clk_type = SMU_OD_ACOUSTIC_TARGET; break;
        case OD_FAN_TARGET_TEMPERATURE:
                clk_type = SMU_OD_FAN_TARGET_TEMPERATURE; break;
+       case OD_FAN_MINIMUM_PWM:
+               clk_type = SMU_OD_FAN_MINIMUM_PWM; break;
        default:
                clk_type = SMU_CLK_COUNT; break;
        }
diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h 
b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
index 7c405486ec52..3a56ebcc2b6a 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
@@ -283,6 +283,7 @@ enum smu_clk_type {
        SMU_OD_ACOUSTIC_LIMIT,
        SMU_OD_ACOUSTIC_TARGET,
        SMU_OD_FAN_TARGET_TEMPERATURE,
+       SMU_OD_FAN_MINIMUM_PWM,
        SMU_CLK_COUNT,
 };
 
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c 
b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
index 54745791fa9e..584b69a6da5d 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
@@ -107,6 +107,7 @@
 #define PP_OD_FEATURE_FAN_ACOUSTIC_LIMIT               8
 #define PP_OD_FEATURE_FAN_ACOUSTIC_TARGET              9
 #define PP_OD_FEATURE_FAN_TARGET_TEMPERATURE           10
+#define PP_OD_FEATURE_FAN_MINIMUM_PWM                  11
 
 static struct cmn2asic_msg_mapping smu_v13_0_0_message_map[SMU_MSG_MAX_COUNT] 
= {
        MSG_MAP(TestMessage,                    PPSMC_MSG_TestMessage,          
       1),
@@ -1113,6 +1114,10 @@ static void smu_v13_0_0_get_od_setting_limits(struct 
smu_context *smu,
                od_min_setting = overdrive_lowerlimits->FanTargetTemperature;
                od_max_setting = overdrive_upperlimits->FanTargetTemperature;
                break;
+       case PP_OD_FEATURE_FAN_MINIMUM_PWM:
+               od_min_setting = overdrive_lowerlimits->FanMinimumPwm;
+               od_max_setting = overdrive_upperlimits->FanMinimumPwm;
+               break;
        default:
                od_min_setting = od_max_setting = INT_MAX;
                break;
@@ -1423,6 +1428,24 @@ static int smu_v13_0_0_print_clk_levels(struct 
smu_context *smu,
                                      min_value, max_value);
                break;
 
+       case SMU_OD_FAN_MINIMUM_PWM:
+               if (!smu_v13_0_0_is_od_feature_supported(smu,
+                                                        
PP_OD_FEATURE_FAN_CURVE_BIT))
+                       break;
+
+               size += sysfs_emit_at(buf, size, "FAN_MINIMUM_PWM:\n");
+               size += sysfs_emit_at(buf, size, "%d\n",
+                                       
(int)od_table->OverDriveTable.FanMinimumPwm);
+
+               size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
+               smu_v13_0_0_get_od_setting_limits(smu,
+                                                 PP_OD_FEATURE_FAN_MINIMUM_PWM,
+                                                 &min_value,
+                                                 &max_value);
+               size += sysfs_emit_at(buf, size, "MINIMUM_PWM: %u %u\n",
+                                     min_value, max_value);
+               break;
+
        case SMU_OD_RANGE:
                if (!smu_v13_0_0_is_od_feature_supported(smu, 
PP_OD_FEATURE_GFXCLK_BIT) &&
                    !smu_v13_0_0_is_od_feature_supported(smu, 
PP_OD_FEATURE_UCLK_BIT) &&
@@ -1740,6 +1763,28 @@ static int smu_v13_0_0_od_edit_dpm_table(struct 
smu_context *smu,
                od_table->OverDriveTable.FeatureCtrlMask |= 
BIT(PP_OD_FEATURE_FAN_CURVE_BIT);
                break;
 
+       case PP_OD_EDIT_FAN_MINIMUM_PWM:
+               if (!smu_v13_0_0_is_od_feature_supported(smu, 
PP_OD_FEATURE_FAN_CURVE_BIT)) {
+                       dev_warn(adev->dev, "Fan curve setting not 
supported!\n");
+                       return -ENOTSUPP;
+               }
+
+               smu_v13_0_0_get_od_setting_limits(smu,
+                                                 PP_OD_FEATURE_FAN_MINIMUM_PWM,
+                                                 &minimum,
+                                                 &maximum);
+               if (input[0] < minimum ||
+                   input[0] > maximum) {
+                       dev_info(adev->dev, "fan minimum pwm setting(%ld) must 
be within [%d, %d]!\n",
+                                input[0], minimum, maximum);
+                       return -EINVAL;
+               }
+
+               od_table->OverDriveTable.FanMinimumPwm = input[0];
+               od_table->OverDriveTable.FanMode = FAN_MODE_AUTO;
+               od_table->OverDriveTable.FeatureCtrlMask |= 
BIT(PP_OD_FEATURE_FAN_CURVE_BIT);
+               break;
+
        case PP_OD_RESTORE_DEFAULT_TABLE:
                feature_ctrlmask = od_table->OverDriveTable.FeatureCtrlMask;
                memcpy(od_table,
@@ -2001,7 +2046,9 @@ static void 
smu_v13_0_0_set_supported_od_feature_mask(struct smu_context *smu)
                                            
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE |
                                            
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET |
                                            
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE |
-                                           
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET;
+                                           
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET |
+                                           
OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE |
+                                           OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET;
 }
 
 static int smu_v13_0_0_set_default_od_settings(struct smu_context *smu)
@@ -2067,6 +2114,8 @@ static int smu_v13_0_0_set_default_od_settings(struct 
smu_context *smu)
                        
user_od_table_bak.OverDriveTable.AcousticTargetRpmThreshold;
                user_od_table->OverDriveTable.FanTargetTemperature =
                        user_od_table_bak.OverDriveTable.FanTargetTemperature;
+               user_od_table->OverDriveTable.FanMinimumPwm =
+                       user_od_table_bak.OverDriveTable.FanMinimumPwm;
        }
 
        smu_v13_0_0_set_supported_od_feature_mask(smu);
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c 
b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
index 68e42aad3370..a1f45378e7eb 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
@@ -83,6 +83,7 @@
 #define PP_OD_FEATURE_FAN_ACOUSTIC_LIMIT               8
 #define PP_OD_FEATURE_FAN_ACOUSTIC_TARGET              9
 #define PP_OD_FEATURE_FAN_TARGET_TEMPERATURE           10
+#define PP_OD_FEATURE_FAN_MINIMUM_PWM                  11
 
 static struct cmn2asic_msg_mapping smu_v13_0_7_message_map[SMU_MSG_MAX_COUNT] 
= {
        MSG_MAP(TestMessage,                    PPSMC_MSG_TestMessage,          
       1),
@@ -1100,6 +1101,10 @@ static void smu_v13_0_7_get_od_setting_limits(struct 
smu_context *smu,
                od_min_setting = overdrive_lowerlimits->FanTargetTemperature;
                od_max_setting = overdrive_upperlimits->FanTargetTemperature;
                break;
+       case PP_OD_FEATURE_FAN_MINIMUM_PWM:
+               od_min_setting = overdrive_lowerlimits->FanMinimumPwm;
+               od_max_setting = overdrive_upperlimits->FanMinimumPwm;
+               break;
        default:
                od_min_setting = od_max_setting = INT_MAX;
                break;
@@ -1410,6 +1415,24 @@ static int smu_v13_0_7_print_clk_levels(struct 
smu_context *smu,
                                      min_value, max_value);
                break;
 
+       case SMU_OD_FAN_MINIMUM_PWM:
+               if (!smu_v13_0_7_is_od_feature_supported(smu,
+                                                        
PP_OD_FEATURE_FAN_CURVE_BIT))
+                       break;
+
+               size += sysfs_emit_at(buf, size, "FAN_MINIMUM_PWM:\n");
+               size += sysfs_emit_at(buf, size, "%d\n",
+                                       
(int)od_table->OverDriveTable.FanMinimumPwm);
+
+               size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
+               smu_v13_0_7_get_od_setting_limits(smu,
+                                                 PP_OD_FEATURE_FAN_MINIMUM_PWM,
+                                                 &min_value,
+                                                 &max_value);
+               size += sysfs_emit_at(buf, size, "MINIMUM_PWM: %u %u\n",
+                                     min_value, max_value);
+               break;
+
        case SMU_OD_RANGE:
                if (!smu_v13_0_7_is_od_feature_supported(smu, 
PP_OD_FEATURE_GFXCLK_BIT) &&
                    !smu_v13_0_7_is_od_feature_supported(smu, 
PP_OD_FEATURE_UCLK_BIT) &&
@@ -1727,6 +1750,28 @@ static int smu_v13_0_7_od_edit_dpm_table(struct 
smu_context *smu,
                od_table->OverDriveTable.FeatureCtrlMask |= 
BIT(PP_OD_FEATURE_FAN_CURVE_BIT);
                break;
 
+       case PP_OD_EDIT_FAN_MINIMUM_PWM:
+               if (!smu_v13_0_7_is_od_feature_supported(smu, 
PP_OD_FEATURE_FAN_CURVE_BIT)) {
+                       dev_warn(adev->dev, "Fan curve setting not 
supported!\n");
+                       return -ENOTSUPP;
+               }
+
+               smu_v13_0_7_get_od_setting_limits(smu,
+                                                 PP_OD_FEATURE_FAN_MINIMUM_PWM,
+                                                 &minimum,
+                                                 &maximum);
+               if (input[0] < minimum ||
+                   input[0] > maximum) {
+                       dev_info(adev->dev, "fan minimum pwm setting(%ld) must 
be within [%d, %d]!\n",
+                                input[0], minimum, maximum);
+                       return -EINVAL;
+               }
+
+               od_table->OverDriveTable.FanMinimumPwm = input[0];
+               od_table->OverDriveTable.FanMode = FAN_MODE_AUTO;
+               od_table->OverDriveTable.FeatureCtrlMask |= 
BIT(PP_OD_FEATURE_FAN_CURVE_BIT);
+               break;
+
        case PP_OD_RESTORE_DEFAULT_TABLE:
                feature_ctrlmask = od_table->OverDriveTable.FeatureCtrlMask;
                memcpy(od_table,
@@ -1983,7 +2028,9 @@ static void 
smu_v13_0_7_set_supported_od_feature_mask(struct smu_context *smu)
                                            
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE |
                                            
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET |
                                            
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE |
-                                           
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET;
+                                           
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET |
+                                           
OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE |
+                                           OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET;
 }
 
 static int smu_v13_0_7_set_default_od_settings(struct smu_context *smu)
@@ -2049,6 +2096,8 @@ static int smu_v13_0_7_set_default_od_settings(struct 
smu_context *smu)
                        
user_od_table_bak.OverDriveTable.AcousticTargetRpmThreshold;
                user_od_table->OverDriveTable.FanTargetTemperature =
                        user_od_table_bak.OverDriveTable.FanTargetTemperature;
+               user_od_table->OverDriveTable.FanMinimumPwm =
+                       user_od_table_bak.OverDriveTable.FanMinimumPwm;
        }
 
        smu_v13_0_7_set_supported_od_feature_mask(smu);
-- 
2.34.1

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