diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c index 66102db87265..7c60a954737b 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c @@ -353,6 +353,29 @@ static float calculate_net_bw_in_kbytes_sec(struct _vcs_dpi_voltage_scaling_st * return limiting_bw_kbytes_sec; } +static void get_optimal_ntuple(struct _vcs_dpi_voltage_scaling_st *entry) +{ + if (entry->dcfclk_mhz > 0) { + float bw_on_sdp = entry->dcfclk_mhz * dcn3_2_soc.return_bus_width_bytes * ((float)dcn3_2_soc.pct_ideal_sdp_bw_after_urgent / 100); + + entry->fabricclk_mhz = bw_on_sdp / (dcn3_2_soc.return_bus_width_bytes * ((float)dcn3_2_soc.pct_ideal_fabric_bw_after_urgent / 100)); + entry->dram_speed_mts = bw_on_sdp / (dcn3_2_soc.num_chans * + dcn3_2_soc.dram_channel_width_bytes * ((float)dcn3_2_soc.pct_ideal_dram_sdp_bw_after_urgent_pixel_only / 100)); + } else if (entry->fabricclk_mhz > 0) { + float bw_on_fabric = entry->fabricclk_mhz * dcn3_2_soc.return_bus_width_bytes * ((float)dcn3_2_soc.pct_ideal_fabric_bw_after_urgent / 100); + + entry->dcfclk_mhz = bw_on_fabric / (dcn3_2_soc.return_bus_width_bytes * ((float)dcn3_2_soc.pct_ideal_sdp_bw_after_urgent / 100)); + entry->dram_speed_mts = bw_on_fabric / (dcn3_2_soc.num_chans * + dcn3_2_soc.dram_channel_width_bytes * ((float)dcn3_2_soc.pct_ideal_dram_sdp_bw_after_urgent_pixel_only / 100)); + } else if (entry->dram_speed_mts > 0) { + float bw_on_dram = entry->dram_speed_mts * dcn3_2_soc.num_chans * + dcn3_2_soc.dram_channel_width_bytes * ((float)dcn3_2_soc.pct_ideal_dram_sdp_bw_after_urgent_pixel_only / 100); + + entry->fabricclk_mhz = bw_on_dram / (dcn3_2_soc.return_bus_width_bytes * ((float)dcn3_2_soc.pct_ideal_fabric_bw_after_urgent / 100)); + entry->dcfclk_mhz = bw_on_dram / (dcn3_2_soc.return_bus_width_bytes * ((float)dcn3_2_soc.pct_ideal_sdp_bw_after_urgent / 100)); + } +} + void insert_entry_into_table_sorted(struct _vcs_dpi_voltage_scaling_st *table, unsigned int *num_entries, struct _vcs_dpi_voltage_scaling_st *entry) @@ -363,6 +386,8 @@ void insert_entry_into_table_sorted(struct _vcs_dpi_voltage_scaling_st *table, dc_assert_fp_enabled(); + get_optimal_ntuple(entry); + if (*num_entries == 0) { table[0] = *entry; (*num_entries)++; |