From 52ee96c407273c8dfce51a2e642d0420f2531f2e Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Thu, 31 Mar 2022 17:50:13 +0800
Subject: drm/amd/pm: enable power limit retrieving and setting for SMU 13.0.0
Git-commit: fcd1ac96ccec4e761fd840a26f8b523df74d1d91
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
Fulfill the interfaces for retrieving and setting power limit on
SMU 13.0.0.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
.../drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 42 +++++++++++++++++++
1 file changed, 42 insertions(+)
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 e4bc8d85b151..f4184ea90e86 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
@@ -114,6 +114,7 @@ static struct cmn2asic_msg_mapping smu_v13_0_0_message_map[SMU_MSG_MAX_COUNT] =
MSG_MAP(AllowGfxOff, PPSMC_MSG_AllowGfxOff, 0),
MSG_MAP(DisallowGfxOff, PPSMC_MSG_DisallowGfxOff, 0),
MSG_MAP(SetMGpuFanBoostLimitRpm, PPSMC_MSG_SetMGpuFanBoostLimitRpm, 0),
+ MSG_MAP(GetPptLimit, PPSMC_MSG_GetPptLimit, 0),
};
static struct cmn2asic_mapping smu_v13_0_0_clk_map[SMU_CLK_COUNT] = {
@@ -138,6 +139,7 @@ static struct cmn2asic_mapping smu_v13_0_0_feature_mask_map[SMU_FEATURE_COUNT] =
[SMU_FEATURE_DPM_VCLK_BIT] = {1, FEATURE_MM_DPM_BIT},
[SMU_FEATURE_DPM_DCLK_BIT] = {1, FEATURE_MM_DPM_BIT},
[SMU_FEATURE_FAN_CONTROL_BIT] = {1, FEATURE_FAN_CONTROL_BIT},
+ [SMU_FEATURE_PPT_BIT] = {1, FEATURE_THROTTLERS_BIT},
};
static struct cmn2asic_mapping smu_v13_0_0_table_map[SMU_TABLE_COUNT] = {
@@ -1305,6 +1307,44 @@ static int smu_v13_0_0_enable_mgpu_fan_boost(struct smu_context *smu)
NULL);
}
+static int smu_v13_0_0_get_power_limit(struct smu_context *smu,
+ uint32_t *current_power_limit,
+ uint32_t *default_power_limit,
+ uint32_t *max_power_limit)
+{
+ struct smu_table_context *table_context = &smu->smu_table;
+ struct smu_13_0_0_powerplay_table *powerplay_table =
+ (struct smu_13_0_0_powerplay_table *)table_context->power_play_table;
+ PPTable_t *pptable = table_context->driver_pptable;
+ SkuTable_t *skutable = &pptable->SkuTable;
+ uint32_t power_limit, od_percent;
+
+ if (smu_v13_0_get_current_power_limit(smu, &power_limit))
+ power_limit = smu->adev->pm.ac_power ?
+ skutable->SocketPowerLimitAc[PPT_THROTTLER_PPT0] :
+ skutable->SocketPowerLimitDc[PPT_THROTTLER_PPT0];
+
+ if (current_power_limit)
+ *current_power_limit = power_limit;
+ if (default_power_limit)
+ *default_power_limit = power_limit;
+
+ if (max_power_limit) {
+ if (smu->od_enabled) {
+ od_percent = le32_to_cpu(powerplay_table->overdrive_table.max[SMU_13_0_0_ODSETTING_POWERPERCENTAGE]);
+
+ dev_dbg(smu->adev->dev, "ODSETTING_POWERPERCENTAGE: %d (default: %d)\n", od_percent, power_limit);
+
+ power_limit *= (100 + od_percent);
+ power_limit /= 100;
+ }
+ *max_power_limit = power_limit;
+ }
+
+ return 0;
+}
+
+
static const struct pptable_funcs smu_v13_0_0_ppt_funcs = {
.get_allowed_feature_mask = smu_v13_0_0_get_allowed_feature_mask,
.set_default_dpm_table = smu_v13_0_0_set_default_dpm_table,
@@ -1351,6 +1391,8 @@ static const struct pptable_funcs smu_v13_0_0_ppt_funcs = {
.get_fan_control_mode = smu_v13_0_get_fan_control_mode,
.set_fan_control_mode = smu_v13_0_set_fan_control_mode,
.enable_mgpu_fan_boost = smu_v13_0_0_enable_mgpu_fan_boost,
+ .get_power_limit = smu_v13_0_0_get_power_limit,
+ .set_power_limit = smu_v13_0_set_power_limit,
};
void smu_v13_0_0_set_ppt_funcs(struct smu_context *smu)
--
2.38.1