Correct the power limit setting for SMU V11 asics.
Change-Id: Idedc590c35934397bd77b7ac825b063cd319dbbf
Signed-off-by: Evan Quan <evan.quan@xxxxxxx>
---
.../gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c | 23 ++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
index 624065d3c079..3288760a5431 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
@@ -929,9 +929,13 @@ int smu_v11_0_get_current_power_limit(struct smu_context *smu,
if (power_src < 0)
return -EINVAL;
+ /*
+ * BIT 24-31: ControllerId (hardcoded as PPT0)
+ * BIT 16-23: PowerSource
+ */
ret = smu_cmn_send_smc_msg_with_param(smu,
SMU_MSG_GetPptLimit,
- power_src << 16,
+ (0 << 24) | (power_src << 16),
power_limit);
if (ret)
dev_err(smu->adev->dev, "[%s] get PPT limit failed!", __func__);
@@ -941,6 +945,7 @@ int smu_v11_0_get_current_power_limit(struct smu_context *smu,
int smu_v11_0_set_power_limit(struct smu_context *smu, uint32_t n)
{
+ int power_src;
int ret = 0;
if (!smu_cmn_feature_is_enabled(smu, SMU_FEATURE_PPT_BIT)) {
@@ -948,6 +953,22 @@ int smu_v11_0_set_power_limit(struct smu_context *smu, uint32_t n)
return -EOPNOTSUPP;
}
+ power_src = smu_cmn_to_asic_specific_index(smu,
+ CMN2ASIC_MAPPING_PWR,
+ smu->adev->pm.ac_power ?
+ SMU_POWER_SOURCE_AC :
+ SMU_POWER_SOURCE_DC);
+ if (power_src < 0)
+ return -EINVAL;
+
+ /*
+ * BIT 24-31: ControllerId (hardcoded as PPT0)
+ * BIT 16-23: PowerSource
+ * BIT 0-15: PowerLimit
+ */
+ n &= 0xFFFF;
+ n |= 0 << 24;
+ n |= (power_src) << 16;
ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_SetPptLimit, n, NULL);
if (ret) {
dev_err(smu->adev->dev, "[%s] Set power limit Failed!\n", __func__);
--
2.29.0
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