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author | Xiaojian Du <Xiaojian.Du@amd.com> | 2020-12-15 16:41:26 +0800 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2021-01-05 11:29:48 -0500 |
commit | ae7b32e7c30268196e1b3c61e0dcb50b4e842f39 (patch) | |
tree | 8351fd663c36f0cd79b1ea9ff6e5cae59504d47f /drivers | |
parent | 23289a221a632fa133cc5159ddcec051ca545b13 (diff) | |
download | linux-stable-ae7b32e7c30268196e1b3c61e0dcb50b4e842f39.tar.gz linux-stable-ae7b32e7c30268196e1b3c61e0dcb50b4e842f39.tar.bz2 linux-stable-ae7b32e7c30268196e1b3c61e0dcb50b4e842f39.zip |
drm/amd/pm: add support to umd P-state "fetch" function for vangogh
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>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c | 111 |
1 files changed, 110 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c index 79b4de33c2fb..0ad475527077 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/vangogh_ppt.c @@ -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, }; |