Add SMU13 fan target temperature OD setting support.

Signed-off-by: Evan Quan <evan.q...@amd.com>
--
v1->v2:
  - add missing kerneldoc for the new interface(Alex)
---
 Documentation/gpu/amdgpu/thermal.rst          |  6 ++
 .../gpu/drm/amd/include/kgd_pp_interface.h    |  2 +
 drivers/gpu/drm/amd/pm/amdgpu_pm.c            | 59 +++++++++++++++++++
 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 +++++++++++++++-
 8 files changed, 172 insertions(+), 2 deletions(-)

diff --git a/Documentation/gpu/amdgpu/thermal.rst 
b/Documentation/gpu/amdgpu/thermal.rst
index 25774032cc16..073ab9e418b1 100644
--- a/Documentation/gpu/amdgpu/thermal.rst
+++ b/Documentation/gpu/amdgpu/thermal.rst
@@ -88,6 +88,12 @@ acoustic_target_rpm_threshold
 .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
    :doc: acoustic_target_rpm_threshold
 
+fan_target_temperature
+----------------------
+
+.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
+   :doc: fan_target_temperature
+
 GFXOFF
 ======
 
diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h 
b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index ca44e5bea2e5..c1065136f527 100644
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -117,6 +117,7 @@ enum pp_clock_type {
        OD_FAN_CURVE,
        OD_ACOUSTIC_LIMIT,
        OD_ACOUSTIC_TARGET,
+       OD_FAN_TARGET_TEMPERATURE,
 };
 
 enum amd_pp_sensors {
@@ -195,6 +196,7 @@ enum PP_OD_DPM_TABLE_COMMAND {
        PP_OD_EDIT_FAN_CURVE,
        PP_OD_EDIT_ACOUSTIC_LIMIT,
        PP_OD_EDIT_ACOUSTIC_TARGET,
+       PP_OD_EDIT_FAN_TARGET_TEMPERATURE,
 };
 
 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 6f5fea6394af..682eef0c0eeb 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -3721,6 +3721,57 @@ static umode_t acoustic_target_threshold_visible(struct 
amdgpu_device *adev)
        return umode;
 }
 
+/**
+ * DOC: fan_target_temperature
+ *
+ * The amdgpu driver provides a sysfs API for checking and adjusting the
+ * target tempeature in Celsius degree for fan control.
+ *
+ * Reading back the file shows you the current setting and the permitted
+ * ranges if changable.
+ *
+ * Writing an integer to the file, change the setting accordingly.
+ *
+ * When you have finished the editing, write "c" (commit) to the file to commit
+ * your changes. NOTE: this will switch the fan control to auto mode.
+ */
+static ssize_t fan_target_temperature_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_TARGET_TEMPERATURE, buf);
+}
+
+static ssize_t fan_target_temperature_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_TARGET_TEMPERATURE,
+                                                            buf,
+                                                            count);
+}
+
+static umode_t fan_target_temperature_visible(struct amdgpu_device *adev)
+{
+       umode_t umode = 0000;
+
+       if (adev->pm.od_feature_mask & 
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE)
+               umode |= S_IRUSR | S_IRGRP | S_IROTH;
+
+       if (adev->pm.od_feature_mask & 
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET)
+               umode |= S_IWUSR;
+
+       return umode;
+}
+
 static struct od_feature_set amdgpu_od_set = {
        .containers = {
                [0] = {
@@ -3758,6 +3809,14 @@ static struct od_feature_set amdgpu_od_set = {
                                                .store = 
acoustic_target_threshold_store,
                                        },
                                },
+                               [4] = {
+                                       .name = "fan_target_temperature",
+                                       .ops = {
+                                               .is_visible = 
fan_target_temperature_visible,
+                                               .show = 
fan_target_temperature_show,
+                                               .store = 
fan_target_temperature_store,
+                                       },
+                               },
                        },
                },
        },
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h 
b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
index 6b2bbd13db09..80d2ac1ecb9f 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
@@ -322,6 +322,8 @@ struct config_table_setting
 #define OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_SET            BIT(5)
 #define OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE      BIT(6)
 #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)
 
 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 3bfa9b9bb247..22a6527139a6 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -2489,6 +2489,8 @@ static enum smu_clk_type smu_convert_to_smuclk(enum 
pp_clock_type type)
                clk_type = SMU_OD_ACOUSTIC_LIMIT; break;
        case OD_ACOUSTIC_TARGET:
                clk_type = SMU_OD_ACOUSTIC_TARGET; break;
+       case OD_FAN_TARGET_TEMPERATURE:
+               clk_type = SMU_OD_FAN_TARGET_TEMPERATURE; 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 8049c20c1e66..1a00f807fb09 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
@@ -284,6 +284,7 @@ enum smu_clk_type {
        SMU_OD_FAN_CURVE,
        SMU_OD_ACOUSTIC_LIMIT,
        SMU_OD_ACOUSTIC_TARGET,
+       SMU_OD_FAN_TARGET_TEMPERATURE,
        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 d483c06c2464..953620f95abc 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
@@ -106,6 +106,7 @@
 #define PP_OD_FEATURE_FAN_CURVE_PWM                    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 LINK_SPEED_MAX                                 3
 
@@ -1135,6 +1136,10 @@ static void smu_v13_0_0_get_od_setting_limits(struct 
smu_context *smu,
                od_min_setting = 
overdrive_lowerlimits->AcousticTargetRpmThreshold;
                od_max_setting = 
overdrive_upperlimits->AcousticTargetRpmThreshold;
                break;
+       case PP_OD_FEATURE_FAN_TARGET_TEMPERATURE:
+               od_min_setting = overdrive_lowerlimits->FanTargetTemperature;
+               od_max_setting = overdrive_upperlimits->FanTargetTemperature;
+               break;
        default:
                od_min_setting = od_max_setting = INT_MAX;
                break;
@@ -1429,6 +1434,24 @@ static int smu_v13_0_0_print_clk_levels(struct 
smu_context *smu,
                                      min_value, max_value);
                break;
 
+       case SMU_OD_FAN_TARGET_TEMPERATURE:
+               if (!smu_v13_0_0_is_od_feature_supported(smu,
+                                                        
PP_OD_FEATURE_FAN_CURVE_BIT))
+                       break;
+
+               size += sysfs_emit_at(buf, size, "FAN_TARGET_TEMPERATURE:\n");
+               size += sysfs_emit_at(buf, size, "%d\n",
+                                       
(int)od_table->OverDriveTable.FanTargetTemperature);
+
+               size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
+               smu_v13_0_0_get_od_setting_limits(smu,
+                                                 
PP_OD_FEATURE_FAN_TARGET_TEMPERATURE,
+                                                 &min_value,
+                                                 &max_value);
+               size += sysfs_emit_at(buf, size, "TARGET_TEMPERATURE: %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) &&
@@ -1721,6 +1744,28 @@ 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_TARGET_TEMPERATURE:
+               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_TARGET_TEMPERATURE,
+                                                 &minimum,
+                                                 &maximum);
+               if (input[0] < minimum ||
+                   input[0] > maximum) {
+                       dev_info(adev->dev, "fan target temperature 
setting(%ld) must be within [%d, %d]!\n",
+                                input[0], minimum, maximum);
+                       return -EINVAL;
+               }
+
+               od_table->OverDriveTable.FanTargetTemperature = 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_0_set_supported_od_feature_mask(struct smu_context *smu)
                                            
OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_RETRIEVE |
                                            
OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_SET |
                                            
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE |
-                                           
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET;
+                                           
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET |
+                                           
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE |
+                                           
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET;
 }
 
 static int smu_v13_0_0_set_default_od_settings(struct smu_context *smu)
@@ -2047,6 +2094,8 @@ static int smu_v13_0_0_set_default_od_settings(struct 
smu_context *smu)
                        
user_od_table_bak.OverDriveTable.AcousticLimitRpmThreshold;
                user_od_table->OverDriveTable.AcousticTargetRpmThreshold =
                        
user_od_table_bak.OverDriveTable.AcousticTargetRpmThreshold;
+               user_od_table->OverDriveTable.FanTargetTemperature =
+                       user_od_table_bak.OverDriveTable.FanTargetTemperature;
        }
 
        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 61caa5d54e57..a4d48ef5aaa7 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
@@ -82,6 +82,7 @@
 #define PP_OD_FEATURE_FAN_CURVE_PWM                    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 LINK_SPEED_MAX                                 3
 
@@ -1121,6 +1122,10 @@ static void smu_v13_0_7_get_od_setting_limits(struct 
smu_context *smu,
                od_min_setting = 
overdrive_lowerlimits->AcousticTargetRpmThreshold;
                od_max_setting = 
overdrive_upperlimits->AcousticTargetRpmThreshold;
                break;
+       case PP_OD_FEATURE_FAN_TARGET_TEMPERATURE:
+               od_min_setting = overdrive_lowerlimits->FanTargetTemperature;
+               od_max_setting = overdrive_upperlimits->FanTargetTemperature;
+               break;
        default:
                od_min_setting = od_max_setting = INT_MAX;
                break;
@@ -1415,6 +1420,24 @@ static int smu_v13_0_7_print_clk_levels(struct 
smu_context *smu,
                                      min_value, max_value);
                break;
 
+       case SMU_OD_FAN_TARGET_TEMPERATURE:
+               if (!smu_v13_0_7_is_od_feature_supported(smu,
+                                                        
PP_OD_FEATURE_FAN_CURVE_BIT))
+                       break;
+
+               size += sysfs_emit_at(buf, size, "FAN_TARGET_TEMPERATURE:\n");
+               size += sysfs_emit_at(buf, size, "%d\n",
+                                       
(int)od_table->OverDriveTable.FanTargetTemperature);
+
+               size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
+               smu_v13_0_7_get_od_setting_limits(smu,
+                                                 
PP_OD_FEATURE_FAN_TARGET_TEMPERATURE,
+                                                 &min_value,
+                                                 &max_value);
+               size += sysfs_emit_at(buf, size, "TARGET_TEMPERATURE: %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) &&
@@ -1707,6 +1730,28 @@ 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_TARGET_TEMPERATURE:
+               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_TARGET_TEMPERATURE,
+                                                 &minimum,
+                                                 &maximum);
+               if (input[0] < minimum ||
+                   input[0] > maximum) {
+                       dev_info(adev->dev, "fan target temperature 
setting(%ld) must be within [%d, %d]!\n",
+                                input[0], minimum, maximum);
+                       return -EINVAL;
+               }
+
+               od_table->OverDriveTable.FanTargetTemperature = 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,
@@ -1964,7 +2009,9 @@ static void 
smu_v13_0_7_set_supported_od_feature_mask(struct smu_context *smu)
                                            
OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_RETRIEVE |
                                            
OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_SET |
                                            
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE |
-                                           
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET;
+                                           
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET |
+                                           
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE |
+                                           
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET;
 }
 
 static int smu_v13_0_7_set_default_od_settings(struct smu_context *smu)
@@ -2028,6 +2075,8 @@ static int smu_v13_0_7_set_default_od_settings(struct 
smu_context *smu)
                        
user_od_table_bak.OverDriveTable.AcousticLimitRpmThreshold;
                user_od_table->OverDriveTable.AcousticTargetRpmThreshold =
                        
user_od_table_bak.OverDriveTable.AcousticTargetRpmThreshold;
+               user_od_table->OverDriveTable.FanTargetTemperature =
+                       user_od_table_bak.OverDriveTable.FanTargetTemperature;
        }
 
        smu_v13_0_7_set_supported_od_feature_mask(smu);
-- 
2.34.1

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