发件人: amd-gfx
<amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> 代表 Yang Wang <KevinYang.Wang@xxxxxxx>
日期:
星期三, 2022年5月11日
15:01
收件人: amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>
抄送: Wang, Yang(Kevin) <KevinYang.Wang@xxxxxxx>
主题: [PATCH] drm/amd/pm: add smu power_limit callback
for smu_v13_0_7
[CAUTION: External Email]
- get_power_limit
- set_power_limit
add above callback functions to enable power_cap hwmon node.
Signed-off-by: Yang Wang <KevinYang.Wang@xxxxxxx>
---
.../drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 39 +++++++++++++++++++
1 file changed, 39 insertions(+)
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 7c9e0ba7ab50..4e1861fb2c6a 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
@@ -1367,6 +1367,43 @@ static int smu_v13_0_7_enable_mgpu_fan_boost(struct smu_context *smu)
NULL);
}
+static int smu_v13_0_7_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_7_powerplay_table *powerplay_table =
+ (struct smu_13_0_7_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_7_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 int smu_v13_0_7_get_power_profile_mode(struct smu_context *smu, char *buf)
{
DpmActivityMonitorCoeffIntExternal_t activity_monitor_external[PP_SMC_POWER_PROFILE_COUNT];
@@ -1539,6 +1576,8 @@ static const struct pptable_funcs smu_v13_0_7_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_7_enable_mgpu_fan_boost,
+ .get_power_limit = smu_v13_0_7_get_power_limit,
+ .set_power_limit = smu_v13_0_set_power_limit,
.get_power_profile_mode = smu_v13_0_7_get_power_profile_mode,
.set_power_profile_mode = smu_v13_0_7_set_power_profile_mode,
.set_tool_table_location = smu_v13_0_set_tool_table_location,
--
2.25.1
