From a831bafa00c390e99d204bf4eaf45ddc47de7e0d Mon Sep 17 00:00:00 2001 From: Xiaomeng Hou Date: Fri, 5 Mar 2021 15:26:24 +0800 Subject: [PATCH] drm/amd/pm: add support to get dpm clock value for yellow carp Implement the sysfs API for getting values of pp dpm clocks(pp_dpm_socclk/mclk/fclk/vclk/dclk) for yellow carp. Signed-off-by: Xiaomeng Hou Reviewed-by: Kevin Wang Reviewed-by: Huang Rui Signed-off-by: Alex Deucher --- .../gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c | 128 ++++++++++++++++++++- 1 file changed, 127 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c index fa871df..211cc9b 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c @@ -458,10 +458,113 @@ static int yellow_carp_od_edit_dpm_table(struct smu_context *smu, enum PP_OD_DPM return ret; } +static int yellow_carp_get_current_clk_freq(struct smu_context *smu, + enum smu_clk_type clk_type, + uint32_t *value) +{ + MetricsMember_t member_type; + + switch (clk_type) { + case SMU_SOCCLK: + member_type = METRICS_AVERAGE_SOCCLK; + break; + case SMU_VCLK: + member_type = METRICS_AVERAGE_VCLK; + break; + case SMU_DCLK: + member_type = METRICS_AVERAGE_DCLK; + break; + case SMU_MCLK: + member_type = METRICS_AVERAGE_UCLK; + break; + case SMU_FCLK: + return smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_GetFclkFrequency, 0, value); + default: + break; + } + + return yellow_carp_get_smu_metrics_data(smu, member_type, value); +} + +static int yellow_carp_get_dpm_level_count(struct smu_context *smu, + enum smu_clk_type clk_type, + uint32_t *count) +{ + DpmClocks_t *clk_table = smu->smu_table.clocks_table; + + switch (clk_type) { + case SMU_SOCCLK: + *count = clk_table->NumSocClkLevelsEnabled; + break; + case SMU_VCLK: + *count = clk_table->VcnClkLevelsEnabled; + break; + case SMU_DCLK: + *count = clk_table->VcnClkLevelsEnabled; + break; + case SMU_MCLK: + *count = clk_table->NumDfPstatesEnabled; + break; + case SMU_FCLK: + *count = clk_table->NumDfPstatesEnabled; + break; + default: + break; + } + + return 0; +} + +static int yellow_carp_get_dpm_freq_by_index(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_VCLK: + if (dpm_level >= clk_table->VcnClkLevelsEnabled) + return -EINVAL; + *freq = clk_table->VClocks[dpm_level]; + break; + case SMU_DCLK: + if (dpm_level >= clk_table->VcnClkLevelsEnabled) + return -EINVAL; + *freq = clk_table->DClocks[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 yellow_carp_print_clk_levels(struct smu_context *smu, enum smu_clk_type clk_type, char *buf) { - int size = 0; + int i, size = 0, ret = 0; + uint32_t cur_value = 0, value = 0, count = 0; switch (clk_type) { case SMU_OD_SCLK: @@ -476,10 +579,33 @@ static int yellow_carp_print_clk_levels(struct smu_context *smu, size += sprintf(buf + size, "SCLK: %7uMhz %10uMhz\n", smu->gfx_default_hard_min_freq, smu->gfx_default_soft_max_freq); break; + case SMU_SOCCLK: + case SMU_VCLK: + case SMU_DCLK: + case SMU_MCLK: + case SMU_FCLK: + ret = yellow_carp_get_current_clk_freq(smu, clk_type, &cur_value); + if (ret) + goto print_clk_out; + + ret = yellow_carp_get_dpm_level_count(smu, clk_type, &count); + if (ret) + goto print_clk_out; + + for (i = 0; i < count; i++) { + ret = yellow_carp_get_dpm_freq_by_index(smu, clk_type, i, &value); + if (ret) + goto print_clk_out; + + size += sprintf(buf + size, "%d: %uMhz %s\n", i, value, + cur_value == value ? "*" : ""); + } + break; default: break; } +print_clk_out: return size; } -- 2.7.4