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drm/amd/pm: add support to umd P-state "fetch" function for vangogh

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This patch is to add supoort to umd P-state function for vangogh.
It enables the "fetch" function of 3 sysfs nodes: pp_dpm_mclk,
pp_dpm_fclk, pp_dpm_socclk,the function is used to fetch
the current frequency of memclk/fclk/socclk.

Signed-off-by: Xiaojian Du <Xiaojian.Du@amd.com>
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiaojian Du 2020-12-15 16:41:26 +08:00 committed by Alex Deucher
parent 23289a221a
commit ae7b32e7c3
1 changed files with 110 additions and 1 deletions
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111
drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c
View File

@ -407,10 +407,53 @@ static bool vangogh_is_dpm_running(struct smu_context *smu)
return !!(feature_enabled & SMC_DPM_FEATURE);
}
static int vangogh_get_dpm_clk_limited(struct smu_context *smu, enum smu_clk_type clk_type,
uint32_t dpm_level, uint32_t *freq)
{
DpmClocks_t *clk_table = smu->smu_table.clocks_table;
if (!clk_table || clk_type >= SMU_CLK_COUNT)
return -EINVAL;
switch (clk_type) {
case SMU_SOCCLK:
if (dpm_level >= clk_table->NumSocClkLevelsEnabled)
return -EINVAL;
*freq = clk_table->SocClocks[dpm_level];
break;
case SMU_UCLK:
case SMU_MCLK:
if (dpm_level >= clk_table->NumDfPstatesEnabled)
return -EINVAL;
*freq = clk_table->DfPstateTable[dpm_level].memclk;
break;
case SMU_FCLK:
if (dpm_level >= clk_table->NumDfPstatesEnabled)
return -EINVAL;
*freq = clk_table->DfPstateTable[dpm_level].fclk;
break;
default:
return -EINVAL;
}
return 0;
}
static int vangogh_print_fine_grain_clk(struct smu_context *smu,
enum smu_clk_type clk_type, char *buf)
{
int size = 0;
DpmClocks_t *clk_table = smu->smu_table.clocks_table;
SmuMetrics_t metrics;
int i, size = 0, ret = 0;
uint32_t cur_value = 0, value = 0, count = 0;
bool cur_value_match_level = false;
memset(&metrics, 0, sizeof(metrics));
ret = smu_cmn_get_metrics_table(smu, &metrics, false);
if (ret)
return ret;
switch (clk_type) {
case SMU_OD_SCLK:
@ -429,6 +472,44 @@ static int vangogh_print_fine_grain_clk(struct smu_context *smu,
smu->gfx_default_hard_min_freq, smu->gfx_default_soft_max_freq);
}
break;
case SMU_SOCCLK:
/* the level 3 ~ 6 of socclk use the same frequency for vangogh */
count = clk_table->NumSocClkLevelsEnabled;
cur_value = metrics.SocclkFrequency;
break;
case SMU_MCLK:
count = clk_table->NumDfPstatesEnabled;
cur_value = metrics.MemclkFrequency;
break;
case SMU_FCLK:
count = clk_table->NumDfPstatesEnabled;
ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_GetFclkFrequency, 0, &cur_value);
if (ret)
return ret;
break;
default:
break;
}
switch (clk_type) {
case SMU_SOCCLK:
case SMU_MCLK:
case SMU_FCLK:
for (i = 0; i < count; i++) {
ret = vangogh_get_dpm_clk_limited(smu, clk_type, i, &value);
if (ret)
return ret;
if (!value)
continue;
size += sprintf(buf + size, "%d: %uMhz %s\n", i, value,
cur_value == value ? "*" : "");
if (cur_value == value)
cur_value_match_level = true;
}
if (!cur_value_match_level)
size += sprintf(buf + size, " %uMhz *\n", cur_value);
break;
default:
break;
}
@ -727,6 +808,33 @@ static int vangogh_set_fine_grain_gfx_freq_parameters(struct smu_context *smu)
return 0;
}
static int vangogh_get_dpm_clock_table(struct smu_context *smu, struct dpm_clocks *clock_table)
{
DpmClocks_t *table = smu->smu_table.clocks_table;
int i;
if (!clock_table || !table)
return -EINVAL;
for (i = 0; i < NUM_SOCCLK_DPM_LEVELS; i++) {
clock_table->SocClocks[i].Freq = table->SocClocks[i];
clock_table->SocClocks[i].Vol = table->SocVoltage[i];
}
for (i = 0; i < NUM_FCLK_DPM_LEVELS; i++) {
clock_table->FClocks[i].Freq = table->DfPstateTable[i].fclk;
clock_table->FClocks[i].Vol = table->DfPstateTable[i].voltage;
}
for (i = 0; i < NUM_FCLK_DPM_LEVELS; i++) {
clock_table->MemClocks[i].Freq = table->DfPstateTable[i].memclk;
clock_table->MemClocks[i].Vol = table->DfPstateTable[i].voltage;
}
return 0;
}
static int vangogh_system_features_control(struct smu_context *smu, bool en)
{
struct amdgpu_device *adev = smu->adev;
@ -798,6 +906,7 @@ static const struct pptable_funcs vangogh_ppt_funcs = {
.set_default_dpm_table = vangogh_set_default_dpm_tables,
.set_fine_grain_gfx_freq_parameters = vangogh_set_fine_grain_gfx_freq_parameters,
.system_features_control = vangogh_system_features_control,
.get_dpm_clock_table = vangogh_get_dpm_clock_table,
.post_init = vangogh_post_smu_init,
};