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drm/amd/pm: add xgmi plpd mode selecting interface for smu v13.0.6

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Add the interface to change xgmi per-link power down policy.

v2: split from sysfs interface code and miscellaneous updates
v3: check against XGMI_PLPD_DEFAULT/XGMI_PLPD_OPTIMIZED and
    pass PPSMC param

Signed-off-by: Le Ma <le.ma@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Le Ma 2023-09-07 15:32:13 +08:00 committed by Alex Deucher
parent 10d9ee96ce
commit d07f1c20dd
4 changed files with 66 additions and 1 deletions
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24
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
View File

@ -3157,6 +3157,30 @@ static int smu_get_prv_buffer_details(void *handle, void **addr, size_t *size)
return 0;
}
int smu_set_xgmi_plpd_mode(struct smu_context *smu,
enum pp_xgmi_plpd_mode mode)
{
int ret = -EOPNOTSUPP;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return ret;
/* PLPD policy is not supported if it's NONE */
if (smu->plpd_mode == XGMI_PLPD_NONE)
return ret;
if (smu->plpd_mode == mode)
return 0;
if (smu->ppt_funcs && smu->ppt_funcs->select_xgmi_plpd_policy)
ret = smu->ppt_funcs->select_xgmi_plpd_policy(smu, mode);
if (!ret)
smu->plpd_mode = mode;
return ret;
}
static const struct amd_pm_funcs swsmu_pm_funcs = {
/* export for sysfs */
.set_fan_control_mode = smu_set_fan_control_mode,

9
drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
View File

@ -840,6 +840,12 @@ struct pptable_funcs {
*/
int (*allow_xgmi_power_down)(struct smu_context *smu, bool en);
/**
* @select_xgmi_plpd_policy: Select xgmi per-link power down policy.
*/
int (*select_xgmi_plpd_policy)(struct smu_context *smu,
enum pp_xgmi_plpd_mode mode);
/**
* @update_pcie_parameters: Update and upload the system's PCIe
* capabilites to the SMU.
@ -1487,6 +1493,9 @@ int smu_set_ac_dc(struct smu_context *smu);
int smu_allow_xgmi_power_down(struct smu_context *smu, bool en);
int smu_set_xgmi_plpd_mode(struct smu_context *smu,
enum pp_xgmi_plpd_mode mode);
int smu_get_entrycount_gfxoff(struct smu_context *smu, u64 *value);
int smu_get_residency_gfxoff(struct smu_context *smu, u32 *value);

3
drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
View File

@ -252,7 +252,8 @@
__SMU_DUMMY_MAP(QueryValidMcaCount), \
__SMU_DUMMY_MAP(QueryValidMcaCeCount), \
__SMU_DUMMY_MAP(McaBankDumpDW), \
__SMU_DUMMY_MAP(McaBankCeDumpDW),
__SMU_DUMMY_MAP(McaBankCeDumpDW), \
__SMU_DUMMY_MAP(SelectPLPDMode),
#undef __SMU_DUMMY_MAP
#define __SMU_DUMMY_MAP(type) SMU_MSG_##type

31
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
View File

@ -170,6 +170,7 @@ static const struct cmn2asic_msg_mapping smu_v13_0_6_message_map[SMU_MSG_MAX_COU
MSG_MAP(QueryValidMcaCeCount, PPSMC_MSG_QueryValidMcaCeCount, 0),
MSG_MAP(McaBankDumpDW, PPSMC_MSG_McaBankDumpDW, 0),
MSG_MAP(McaBankCeDumpDW, PPSMC_MSG_McaBankCeDumpDW, 0),
MSG_MAP(SelectPLPDMode, PPSMC_MSG_SelectPLPDMode, 0),
};
static const struct cmn2asic_mapping smu_v13_0_6_clk_map[SMU_CLK_COUNT] = {
@ -2716,6 +2717,35 @@ static const struct amdgpu_mca_smu_funcs smu_v13_0_6_mca_smu_funcs = {
.mca_get_ras_mca_idx_array = mca_smu_get_ras_mca_idx_array,
};
static int smu_v13_0_6_select_xgmi_plpd_policy(struct smu_context *smu,
enum pp_xgmi_plpd_mode mode)
{
struct amdgpu_device *adev = smu->adev;
int ret, param;
switch (mode) {
case XGMI_PLPD_DEFAULT:
param = PPSMC_PLPD_MODE_DEFAULT;
break;
case XGMI_PLPD_OPTIMIZED:
param = PPSMC_PLPD_MODE_OPTIMIZED;
break;
default:
return -EINVAL;
}
/* change xgmi per-link power down policy */
ret = smu_cmn_send_smc_msg_with_param(
smu, SMU_MSG_SelectPLPDMode, param, NULL);
if (ret)
dev_err(adev->dev,
"select xgmi per-link power down policy %d failed\n",
mode);
return ret;
}
static const struct pptable_funcs smu_v13_0_6_ppt_funcs = {
/* init dpm */
.get_allowed_feature_mask = smu_v13_0_6_get_allowed_feature_mask,
@ -2756,6 +2786,7 @@ static const struct pptable_funcs smu_v13_0_6_ppt_funcs = {
.od_edit_dpm_table = smu_v13_0_6_usr_edit_dpm_table,
.set_df_cstate = smu_v13_0_6_set_df_cstate,
.allow_xgmi_power_down = smu_v13_0_6_allow_xgmi_power_down,
.select_xgmi_plpd_policy = smu_v13_0_6_select_xgmi_plpd_policy,
.log_thermal_throttling_event = smu_v13_0_6_log_thermal_throttling_event,
.get_pp_feature_mask = smu_cmn_get_pp_feature_mask,
.get_gpu_metrics = smu_v13_0_6_get_gpu_metrics,