}
}
+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));
+ }
+}
+
+static float calculate_net_bw_in_kbytes_sec(struct _vcs_dpi_voltage_scaling_st *entry)
+{
+ float memory_bw_kbytes_sec = 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);
+
+ float fabric_bw_kbytes_sec = entry->fabricclk_mhz * dcn3_2_soc.return_bus_width_bytes * ((float)dcn3_2_soc.pct_ideal_fabric_bw_after_urgent / 100);
+
+ float sdp_bw_kbytes_sec = entry->dcfclk_mhz * dcn3_2_soc.return_bus_width_bytes * ((float)dcn3_2_soc.pct_ideal_sdp_bw_after_urgent / 100);
+
+ float limiting_bw_kbytes_sec = memory_bw_kbytes_sec;
+
+ if (fabric_bw_kbytes_sec < limiting_bw_kbytes_sec)
+ limiting_bw_kbytes_sec = fabric_bw_kbytes_sec;
+
+ if (sdp_bw_kbytes_sec < limiting_bw_kbytes_sec)
+ limiting_bw_kbytes_sec = sdp_bw_kbytes_sec;
+
+ return limiting_bw_kbytes_sec;
+}
+
+static void insert_entry_into_table_sorted(struct _vcs_dpi_voltage_scaling_st *table, unsigned int *num_entries,
+ struct _vcs_dpi_voltage_scaling_st *entry)
+{
+ int index = 0;
+ int i = 0;
+ float net_bw_of_new_state = 0;
+
+ if (*num_entries == 0) {
+ table[0] = *entry;
+ (*num_entries)++;
+ } else {
+ net_bw_of_new_state = calculate_net_bw_in_kbytes_sec(entry);
+ while (net_bw_of_new_state > calculate_net_bw_in_kbytes_sec(&table[index])) {
+ index++;
+ if (index >= *num_entries)
+ break;
+ }
+
+ for (i = *num_entries; i > index; i--) {
+ table[i] = table[i - 1];
+ }
+
+ table[index] = *entry;
+ (*num_entries)++;
+ }
+}
+
+static void remove_entry_from_table_at_index(struct _vcs_dpi_voltage_scaling_st *table, unsigned int *num_entries,
+ unsigned int index)
+{
+ int i;
+
+ if (*num_entries == 0)
+ return;
+
+ for (i = index; i < *num_entries - 1; i++) {
+ table[i] = table[i + 1];
+ }
+ memset(&table[--(*num_entries)], 0, sizeof(struct _vcs_dpi_voltage_scaling_st));
+}
+
+static int build_synthetic_soc_states(struct clk_bw_params *bw_params,
+ struct _vcs_dpi_voltage_scaling_st *table, unsigned int *num_entries)
+{
+ int i, j;
+ struct _vcs_dpi_voltage_scaling_st entry = {0};
+
+ unsigned int max_dcfclk_mhz = 0, max_dispclk_mhz = 0, max_dppclk_mhz = 0,
+ max_phyclk_mhz = 0, max_dtbclk_mhz = 0, max_fclk_mhz = 0, max_uclk_mhz = 0;
+
+ unsigned int min_dcfclk_mhz = 199, min_fclk_mhz = 299;
+
+ static const unsigned int num_dcfclk_stas = 5;
+ unsigned int dcfclk_sta_targets[DC__VOLTAGE_STATES] = {199, 615, 906, 1324, 1564};
+
+ unsigned int num_uclk_dpms = 0;
+ unsigned int num_fclk_dpms = 0;
+ unsigned int num_dcfclk_dpms = 0;
+
+ for (i = 0; i < MAX_NUM_DPM_LVL; i++) {
+ if (bw_params->clk_table.entries[i].dcfclk_mhz > max_dcfclk_mhz)
+ max_dcfclk_mhz = bw_params->clk_table.entries[i].dcfclk_mhz;
+ if (bw_params->clk_table.entries[i].fclk_mhz > max_fclk_mhz)
+ max_fclk_mhz = bw_params->clk_table.entries[i].fclk_mhz;
+ if (bw_params->clk_table.entries[i].memclk_mhz > max_uclk_mhz)
+ max_uclk_mhz = bw_params->clk_table.entries[i].memclk_mhz;
+ if (bw_params->clk_table.entries[i].dispclk_mhz > max_dispclk_mhz)
+ max_dispclk_mhz = bw_params->clk_table.entries[i].dispclk_mhz;
+ if (bw_params->clk_table.entries[i].dppclk_mhz > max_dppclk_mhz)
+ max_dppclk_mhz = bw_params->clk_table.entries[i].dppclk_mhz;
+ if (bw_params->clk_table.entries[i].phyclk_mhz > max_phyclk_mhz)
+ max_phyclk_mhz = bw_params->clk_table.entries[i].phyclk_mhz;
+ if (bw_params->clk_table.entries[i].dtbclk_mhz > max_dtbclk_mhz)
+ max_dtbclk_mhz = bw_params->clk_table.entries[i].dtbclk_mhz;
+
+ if (bw_params->clk_table.entries[i].memclk_mhz > 0)
+ num_uclk_dpms++;
+ if (bw_params->clk_table.entries[i].fclk_mhz > 0)
+ num_fclk_dpms++;
+ if (bw_params->clk_table.entries[i].dcfclk_mhz > 0)
+ num_dcfclk_dpms++;
+ }
+
+ if (!max_dcfclk_mhz || !max_dispclk_mhz || !max_dtbclk_mhz)
+ return -1;
+
+ if (max_dppclk_mhz == 0)
+ max_dppclk_mhz = max_dispclk_mhz;
+
+ if (max_fclk_mhz == 0)
+ max_fclk_mhz = max_dcfclk_mhz * dcn3_2_soc.pct_ideal_sdp_bw_after_urgent / dcn3_2_soc.pct_ideal_fabric_bw_after_urgent;
+
+ if (max_phyclk_mhz == 0)
+ max_phyclk_mhz = dcn3_2_soc.clock_limits[0].phyclk_mhz;
+
+ *num_entries = 0;
+ entry.dispclk_mhz = max_dispclk_mhz;
+ entry.dscclk_mhz = max_dispclk_mhz / 3;
+ entry.dppclk_mhz = max_dppclk_mhz;
+ entry.dtbclk_mhz = max_dtbclk_mhz;
+ entry.phyclk_mhz = max_phyclk_mhz;
+ entry.phyclk_d18_mhz = dcn3_2_soc.clock_limits[0].phyclk_d18_mhz;
+ entry.phyclk_d32_mhz = dcn3_2_soc.clock_limits[0].phyclk_d32_mhz;
+
+ // Insert all the DCFCLK STAs
+ for (i = 0; i < num_dcfclk_stas; i++) {
+ entry.dcfclk_mhz = dcfclk_sta_targets[i];
+ entry.fabricclk_mhz = 0;
+ entry.dram_speed_mts = 0;
+
+ get_optimal_ntuple(&entry);
+ insert_entry_into_table_sorted(table, num_entries, &entry);
+ }
+
+ // Insert the max DCFCLK
+ entry.dcfclk_mhz = max_dcfclk_mhz;
+ entry.fabricclk_mhz = 0;
+ entry.dram_speed_mts = 0;
+
+ get_optimal_ntuple(&entry);
+ insert_entry_into_table_sorted(table, num_entries, &entry);
+
+ // Insert the UCLK DPMS
+ for (i = 0; i < num_uclk_dpms; i++) {
+ entry.dcfclk_mhz = 0;
+ entry.fabricclk_mhz = 0;
+ entry.dram_speed_mts = bw_params->clk_table.entries[i].memclk_mhz * 16;
+
+ get_optimal_ntuple(&entry);
+ insert_entry_into_table_sorted(table, num_entries, &entry);
+ }
+
+ // If FCLK is coarse grained, insert individual DPMs.
+ if (num_fclk_dpms > 2) {
+ for (i = 0; i < num_fclk_dpms; i++) {
+ entry.dcfclk_mhz = 0;
+ entry.fabricclk_mhz = bw_params->clk_table.entries[i].fclk_mhz;
+ entry.dram_speed_mts = 0;
+
+ get_optimal_ntuple(&entry);
+ insert_entry_into_table_sorted(table, num_entries, &entry);
+ }
+ }
+ // If FCLK fine grained, only insert max
+ else {
+ entry.dcfclk_mhz = 0;
+ entry.fabricclk_mhz = max_fclk_mhz;
+ entry.dram_speed_mts = 0;
+
+ get_optimal_ntuple(&entry);
+ insert_entry_into_table_sorted(table, num_entries, &entry);
+ }
+
+ // At this point, the table contains all "points of interest" based on
+ // DPMs from PMFW, and STAs. Table is sorted by BW, and all clock
+ // ratios (by derate, are exact).
+
+ // Remove states that require higher clocks than are supported
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ if (table[i].dcfclk_mhz > max_dcfclk_mhz ||
+ table[i].fabricclk_mhz > max_fclk_mhz ||
+ table[i].dram_speed_mts > max_uclk_mhz * 16)
+ remove_entry_from_table_at_index(table, num_entries, i);
+ }
+
+ // At this point, the table only contains supported points of interest
+ // it could be used as is, but some states may be redundant due to
+ // coarse grained nature of some clocks, so we want to round up to
+ // coarse grained DPMs and remove duplicates.
+
+ // Round up UCLKs
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ for (j = 0; j < num_uclk_dpms; j++) {
+ if (bw_params->clk_table.entries[j].memclk_mhz * 16 >= table[i].dram_speed_mts) {
+ table[i].dram_speed_mts = bw_params->clk_table.entries[j].memclk_mhz * 16;
+ break;
+ }
+ }
+ }
+
+ // If FCLK is coarse grained, round up to next DPMs
+ if (num_fclk_dpms > 2) {
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ for (j = 0; j < num_fclk_dpms; j++) {
+ if (bw_params->clk_table.entries[j].fclk_mhz >= table[i].fabricclk_mhz) {
+ table[i].fabricclk_mhz = bw_params->clk_table.entries[j].fclk_mhz;
+ break;
+ }
+ }
+ }
+ }
+ // Otherwise, round up to minimum.
+ else {
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ if (table[i].fabricclk_mhz < min_fclk_mhz) {
+ table[i].fabricclk_mhz = min_fclk_mhz;
+ break;
+ }
+ }
+ }
+
+ // Round DCFCLKs up to minimum
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ if (table[i].dcfclk_mhz < min_dcfclk_mhz) {
+ table[i].dcfclk_mhz = min_dcfclk_mhz;
+ break;
+ }
+ }
+
+ // Remove duplicate states, note duplicate states are always neighbouring since table is sorted.
+ i = 0;
+ while (i < *num_entries - 1) {
+ if (table[i].dcfclk_mhz == table[i + 1].dcfclk_mhz &&
+ table[i].fabricclk_mhz == table[i + 1].fabricclk_mhz &&
+ table[i].dram_speed_mts == table[i + 1].dram_speed_mts)
+ remove_entry_from_table_at_index(table, num_entries, i + 1);
+ else
+ i++;
+ }
+
+ // Fix up the state indicies
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ table[i].state = i;
+ }
+
+ return 0;
+}
+
/* dcn32_update_bw_bounding_box
* This would override some dcn3_2 ip_or_soc initial parameters hardcoded from spreadsheet
* with actual values as per dGPU SKU:
/* Overrides Clock levelsfrom CLK Mgr table entries as reported by PM FW */
if ((!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) && (bw_params->clk_table.entries[0].memclk_mhz)) {
- unsigned int i = 0, j = 0, num_states = 0;
-
- unsigned int dcfclk_mhz[DC__VOLTAGE_STATES] = {0};
- unsigned int dram_speed_mts[DC__VOLTAGE_STATES] = {0};
- unsigned int optimal_uclk_for_dcfclk_sta_targets[DC__VOLTAGE_STATES] = {0};
- unsigned int optimal_dcfclk_for_uclk[DC__VOLTAGE_STATES] = {0};
-
- unsigned int dcfclk_sta_targets[DC__VOLTAGE_STATES] = {615, 906, 1324, 1564};
- unsigned int num_dcfclk_sta_targets = 4, num_uclk_states = 0;
- unsigned int max_dcfclk_mhz = 0, max_dispclk_mhz = 0, max_dppclk_mhz = 0, max_phyclk_mhz = 0;
-
- for (i = 0; i < MAX_NUM_DPM_LVL; i++) {
- if (bw_params->clk_table.entries[i].dcfclk_mhz > max_dcfclk_mhz)
- max_dcfclk_mhz = bw_params->clk_table.entries[i].dcfclk_mhz;
- if (bw_params->clk_table.entries[i].dispclk_mhz > max_dispclk_mhz)
- max_dispclk_mhz = bw_params->clk_table.entries[i].dispclk_mhz;
- if (bw_params->clk_table.entries[i].dppclk_mhz > max_dppclk_mhz)
- max_dppclk_mhz = bw_params->clk_table.entries[i].dppclk_mhz;
- if (bw_params->clk_table.entries[i].phyclk_mhz > max_phyclk_mhz)
- max_phyclk_mhz = bw_params->clk_table.entries[i].phyclk_mhz;
- }
- if (!max_dcfclk_mhz)
- max_dcfclk_mhz = dcn3_2_soc.clock_limits[0].dcfclk_mhz;
- if (!max_dispclk_mhz)
- max_dispclk_mhz = dcn3_2_soc.clock_limits[0].dispclk_mhz;
- if (!max_dppclk_mhz)
- max_dppclk_mhz = dcn3_2_soc.clock_limits[0].dppclk_mhz;
- if (!max_phyclk_mhz)
- max_phyclk_mhz = dcn3_2_soc.clock_limits[0].phyclk_mhz;
-
- if (max_dcfclk_mhz > dcfclk_sta_targets[num_dcfclk_sta_targets-1]) {
- // If max DCFCLK is greater than the max DCFCLK STA target, insert into the DCFCLK STA target array
- dcfclk_sta_targets[num_dcfclk_sta_targets] = max_dcfclk_mhz;
- num_dcfclk_sta_targets++;
- } else if (max_dcfclk_mhz < dcfclk_sta_targets[num_dcfclk_sta_targets-1]) {
- // If max DCFCLK is less than the max DCFCLK STA target, cap values and remove duplicates
- for (i = 0; i < num_dcfclk_sta_targets; i++) {
- if (dcfclk_sta_targets[i] > max_dcfclk_mhz) {
- dcfclk_sta_targets[i] = max_dcfclk_mhz;
- break;
+ if (dc->debug.use_legacy_soc_bb_mechanism) {
+ unsigned int i = 0, j = 0, num_states = 0;
+
+ unsigned int dcfclk_mhz[DC__VOLTAGE_STATES] = {0};
+ unsigned int dram_speed_mts[DC__VOLTAGE_STATES] = {0};
+ unsigned int optimal_uclk_for_dcfclk_sta_targets[DC__VOLTAGE_STATES] = {0};
+ unsigned int optimal_dcfclk_for_uclk[DC__VOLTAGE_STATES] = {0};
+ unsigned int min_dcfclk = UINT_MAX;
+ /* Set 199 as first value in STA target array to have a minimum DCFCLK value.
+ * For DCN32 we set min to 199 so minimum FCLK DPM0 (300Mhz can be achieved) */
+ unsigned int dcfclk_sta_targets[DC__VOLTAGE_STATES] = {199, 615, 906, 1324, 1564};
+ unsigned int num_dcfclk_sta_targets = 4, num_uclk_states = 0;
+ unsigned int max_dcfclk_mhz = 0, max_dispclk_mhz = 0, max_dppclk_mhz = 0, max_phyclk_mhz = 0;
+
+ for (i = 0; i < MAX_NUM_DPM_LVL; i++) {
+ if (bw_params->clk_table.entries[i].dcfclk_mhz > max_dcfclk_mhz)
+ max_dcfclk_mhz = bw_params->clk_table.entries[i].dcfclk_mhz;
+ if (bw_params->clk_table.entries[i].dcfclk_mhz != 0 &&
+ bw_params->clk_table.entries[i].dcfclk_mhz < min_dcfclk)
+ min_dcfclk = bw_params->clk_table.entries[i].dcfclk_mhz;
+ if (bw_params->clk_table.entries[i].dispclk_mhz > max_dispclk_mhz)
+ max_dispclk_mhz = bw_params->clk_table.entries[i].dispclk_mhz;
+ if (bw_params->clk_table.entries[i].dppclk_mhz > max_dppclk_mhz)
+ max_dppclk_mhz = bw_params->clk_table.entries[i].dppclk_mhz;
+ if (bw_params->clk_table.entries[i].phyclk_mhz > max_phyclk_mhz)
+ max_phyclk_mhz = bw_params->clk_table.entries[i].phyclk_mhz;
+ }
+ if (min_dcfclk > dcfclk_sta_targets[0])
+ dcfclk_sta_targets[0] = min_dcfclk;
+ if (!max_dcfclk_mhz)
+ max_dcfclk_mhz = dcn3_2_soc.clock_limits[0].dcfclk_mhz;
+ if (!max_dispclk_mhz)
+ max_dispclk_mhz = dcn3_2_soc.clock_limits[0].dispclk_mhz;
+ if (!max_dppclk_mhz)
+ max_dppclk_mhz = dcn3_2_soc.clock_limits[0].dppclk_mhz;
+ if (!max_phyclk_mhz)
+ max_phyclk_mhz = dcn3_2_soc.clock_limits[0].phyclk_mhz;
+
+ if (max_dcfclk_mhz > dcfclk_sta_targets[num_dcfclk_sta_targets-1]) {
+ // If max DCFCLK is greater than the max DCFCLK STA target, insert into the DCFCLK STA target array
+ dcfclk_sta_targets[num_dcfclk_sta_targets] = max_dcfclk_mhz;
+ num_dcfclk_sta_targets++;
+ } else if (max_dcfclk_mhz < dcfclk_sta_targets[num_dcfclk_sta_targets-1]) {
+ // If max DCFCLK is less than the max DCFCLK STA target, cap values and remove duplicates
+ for (i = 0; i < num_dcfclk_sta_targets; i++) {
+ if (dcfclk_sta_targets[i] > max_dcfclk_mhz) {
+ dcfclk_sta_targets[i] = max_dcfclk_mhz;
+ break;
+ }
}
+ // Update size of array since we "removed" duplicates
+ num_dcfclk_sta_targets = i + 1;
}
- // Update size of array since we "removed" duplicates
- num_dcfclk_sta_targets = i + 1;
- }
- num_uclk_states = bw_params->clk_table.num_entries;
+ num_uclk_states = bw_params->clk_table.num_entries;
- // Calculate optimal dcfclk for each uclk
- for (i = 0; i < num_uclk_states; i++) {
- dcn32_get_optimal_dcfclk_fclk_for_uclk(bw_params->clk_table.entries[i].memclk_mhz * 16,
- &optimal_dcfclk_for_uclk[i], NULL);
- if (optimal_dcfclk_for_uclk[i] < bw_params->clk_table.entries[0].dcfclk_mhz) {
- optimal_dcfclk_for_uclk[i] = bw_params->clk_table.entries[0].dcfclk_mhz;
+ // Calculate optimal dcfclk for each uclk
+ for (i = 0; i < num_uclk_states; i++) {
+ dcn32_get_optimal_dcfclk_fclk_for_uclk(bw_params->clk_table.entries[i].memclk_mhz * 16,
+ &optimal_dcfclk_for_uclk[i], NULL);
+ if (optimal_dcfclk_for_uclk[i] < bw_params->clk_table.entries[0].dcfclk_mhz) {
+ optimal_dcfclk_for_uclk[i] = bw_params->clk_table.entries[0].dcfclk_mhz;
+ }
}
- }
- // Calculate optimal uclk for each dcfclk sta target
- for (i = 0; i < num_dcfclk_sta_targets; i++) {
- for (j = 0; j < num_uclk_states; j++) {
- if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j]) {
- optimal_uclk_for_dcfclk_sta_targets[i] =
- bw_params->clk_table.entries[j].memclk_mhz * 16;
- break;
+ // Calculate optimal uclk for each dcfclk sta target
+ for (i = 0; i < num_dcfclk_sta_targets; i++) {
+ for (j = 0; j < num_uclk_states; j++) {
+ if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j]) {
+ optimal_uclk_for_dcfclk_sta_targets[i] =
+ bw_params->clk_table.entries[j].memclk_mhz * 16;
+ break;
+ }
}
}
- }
- i = 0;
- j = 0;
- // create the final dcfclk and uclk table
- while (i < num_dcfclk_sta_targets && j < num_uclk_states && num_states < DC__VOLTAGE_STATES) {
- if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j] && i < num_dcfclk_sta_targets) {
- dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
- dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
- } else {
- if (j < num_uclk_states && optimal_dcfclk_for_uclk[j] <= max_dcfclk_mhz) {
- dcfclk_mhz[num_states] = optimal_dcfclk_for_uclk[j];
- dram_speed_mts[num_states++] = bw_params->clk_table.entries[j++].memclk_mhz * 16;
+ i = 0;
+ j = 0;
+ // create the final dcfclk and uclk table
+ while (i < num_dcfclk_sta_targets && j < num_uclk_states && num_states < DC__VOLTAGE_STATES) {
+ if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j] && i < num_dcfclk_sta_targets) {
+ dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
+ dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
} else {
- j = num_uclk_states;
+ if (j < num_uclk_states && optimal_dcfclk_for_uclk[j] <= max_dcfclk_mhz) {
+ dcfclk_mhz[num_states] = optimal_dcfclk_for_uclk[j];
+ dram_speed_mts[num_states++] = bw_params->clk_table.entries[j++].memclk_mhz * 16;
+ } else {
+ j = num_uclk_states;
+ }
}
}
- }
- while (i < num_dcfclk_sta_targets && num_states < DC__VOLTAGE_STATES) {
- dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
- dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
- }
-
- while (j < num_uclk_states && num_states < DC__VOLTAGE_STATES &&
- optimal_dcfclk_for_uclk[j] <= max_dcfclk_mhz) {
- dcfclk_mhz[num_states] = optimal_dcfclk_for_uclk[j];
- dram_speed_mts[num_states++] = bw_params->clk_table.entries[j++].memclk_mhz * 16;
- }
-
- dcn3_2_soc.num_states = num_states;
- for (i = 0; i < dcn3_2_soc.num_states; i++) {
- dcn3_2_soc.clock_limits[i].state = i;
- dcn3_2_soc.clock_limits[i].dcfclk_mhz = dcfclk_mhz[i];
- dcn3_2_soc.clock_limits[i].fabricclk_mhz = dcfclk_mhz[i];
+ while (i < num_dcfclk_sta_targets && num_states < DC__VOLTAGE_STATES) {
+ dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
+ dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
+ }
- /* Fill all states with max values of all these clocks */
- dcn3_2_soc.clock_limits[i].dispclk_mhz = max_dispclk_mhz;
- dcn3_2_soc.clock_limits[i].dppclk_mhz = max_dppclk_mhz;
- dcn3_2_soc.clock_limits[i].phyclk_mhz = max_phyclk_mhz;
- dcn3_2_soc.clock_limits[i].dscclk_mhz = max_dispclk_mhz / 3;
+ while (j < num_uclk_states && num_states < DC__VOLTAGE_STATES &&
+ optimal_dcfclk_for_uclk[j] <= max_dcfclk_mhz) {
+ dcfclk_mhz[num_states] = optimal_dcfclk_for_uclk[j];
+ dram_speed_mts[num_states++] = bw_params->clk_table.entries[j++].memclk_mhz * 16;
+ }
- /* Populate from bw_params for DTBCLK, SOCCLK */
- if (i > 0) {
- if (!bw_params->clk_table.entries[i].dtbclk_mhz) {
- dcn3_2_soc.clock_limits[i].dtbclk_mhz = dcn3_2_soc.clock_limits[i-1].dtbclk_mhz;
- } else {
+ dcn3_2_soc.num_states = num_states;
+ for (i = 0; i < dcn3_2_soc.num_states; i++) {
+ dcn3_2_soc.clock_limits[i].state = i;
+ dcn3_2_soc.clock_limits[i].dcfclk_mhz = dcfclk_mhz[i];
+ dcn3_2_soc.clock_limits[i].fabricclk_mhz = dcfclk_mhz[i];
+
+ /* Fill all states with max values of all these clocks */
+ dcn3_2_soc.clock_limits[i].dispclk_mhz = max_dispclk_mhz;
+ dcn3_2_soc.clock_limits[i].dppclk_mhz = max_dppclk_mhz;
+ dcn3_2_soc.clock_limits[i].phyclk_mhz = max_phyclk_mhz;
+ dcn3_2_soc.clock_limits[i].dscclk_mhz = max_dispclk_mhz / 3;
+
+ /* Populate from bw_params for DTBCLK, SOCCLK */
+ if (i > 0) {
+ if (!bw_params->clk_table.entries[i].dtbclk_mhz) {
+ dcn3_2_soc.clock_limits[i].dtbclk_mhz = dcn3_2_soc.clock_limits[i-1].dtbclk_mhz;
+ } else {
+ dcn3_2_soc.clock_limits[i].dtbclk_mhz = bw_params->clk_table.entries[i].dtbclk_mhz;
+ }
+ } else if (bw_params->clk_table.entries[i].dtbclk_mhz) {
dcn3_2_soc.clock_limits[i].dtbclk_mhz = bw_params->clk_table.entries[i].dtbclk_mhz;
}
- } else if (bw_params->clk_table.entries[i].dtbclk_mhz) {
- dcn3_2_soc.clock_limits[i].dtbclk_mhz = bw_params->clk_table.entries[i].dtbclk_mhz;
- }
- if (!bw_params->clk_table.entries[i].socclk_mhz && i > 0)
- dcn3_2_soc.clock_limits[i].socclk_mhz = dcn3_2_soc.clock_limits[i-1].socclk_mhz;
- else
- dcn3_2_soc.clock_limits[i].socclk_mhz = bw_params->clk_table.entries[i].socclk_mhz;
+ if (!bw_params->clk_table.entries[i].socclk_mhz && i > 0)
+ dcn3_2_soc.clock_limits[i].socclk_mhz = dcn3_2_soc.clock_limits[i-1].socclk_mhz;
+ else
+ dcn3_2_soc.clock_limits[i].socclk_mhz = bw_params->clk_table.entries[i].socclk_mhz;
- if (!dram_speed_mts[i] && i > 0)
- dcn3_2_soc.clock_limits[i].dram_speed_mts = dcn3_2_soc.clock_limits[i-1].dram_speed_mts;
- else
- dcn3_2_soc.clock_limits[i].dram_speed_mts = dram_speed_mts[i];
+ if (!dram_speed_mts[i] && i > 0)
+ dcn3_2_soc.clock_limits[i].dram_speed_mts = dcn3_2_soc.clock_limits[i-1].dram_speed_mts;
+ else
+ dcn3_2_soc.clock_limits[i].dram_speed_mts = dram_speed_mts[i];
- /* These clocks cannot come from bw_params, always fill from dcn3_2_soc[0] */
- /* PHYCLK_D18, PHYCLK_D32 */
- dcn3_2_soc.clock_limits[i].phyclk_d18_mhz = dcn3_2_soc.clock_limits[0].phyclk_d18_mhz;
- dcn3_2_soc.clock_limits[i].phyclk_d32_mhz = dcn3_2_soc.clock_limits[0].phyclk_d32_mhz;
+ /* These clocks cannot come from bw_params, always fill from dcn3_2_soc[0] */
+ /* PHYCLK_D18, PHYCLK_D32 */
+ dcn3_2_soc.clock_limits[i].phyclk_d18_mhz = dcn3_2_soc.clock_limits[0].phyclk_d18_mhz;
+ dcn3_2_soc.clock_limits[i].phyclk_d32_mhz = dcn3_2_soc.clock_limits[0].phyclk_d32_mhz;
+ }
+ } else {
+ build_synthetic_soc_states(bw_params, dcn3_2_soc.clock_limits, &dcn3_2_soc.num_states);
}
/* Re-init DML with updated bb */
(dcn3_21_soc.return_bus_width_bytes * (dcn3_21_soc.max_avg_sdp_bw_use_normal_percent / 100));
}
+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_21_soc.return_bus_width_bytes * ((float)dcn3_21_soc.pct_ideal_sdp_bw_after_urgent / 100);
+
+ entry->fabricclk_mhz = bw_on_sdp / (dcn3_21_soc.return_bus_width_bytes * ((float)dcn3_21_soc.pct_ideal_fabric_bw_after_urgent / 100));
+ entry->dram_speed_mts = bw_on_sdp / (dcn3_21_soc.num_chans *
+ dcn3_21_soc.dram_channel_width_bytes * ((float)dcn3_21_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_21_soc.return_bus_width_bytes * ((float)dcn3_21_soc.pct_ideal_fabric_bw_after_urgent / 100);
+
+ entry->dcfclk_mhz = bw_on_fabric / (dcn3_21_soc.return_bus_width_bytes * ((float)dcn3_21_soc.pct_ideal_sdp_bw_after_urgent / 100));
+ entry->dram_speed_mts = bw_on_fabric / (dcn3_21_soc.num_chans *
+ dcn3_21_soc.dram_channel_width_bytes * ((float)dcn3_21_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_21_soc.num_chans *
+ dcn3_21_soc.dram_channel_width_bytes * ((float)dcn3_21_soc.pct_ideal_dram_sdp_bw_after_urgent_pixel_only / 100);
+
+ entry->fabricclk_mhz = bw_on_dram / (dcn3_21_soc.return_bus_width_bytes * ((float)dcn3_21_soc.pct_ideal_fabric_bw_after_urgent / 100));
+ entry->dcfclk_mhz = bw_on_dram / (dcn3_21_soc.return_bus_width_bytes * ((float)dcn3_21_soc.pct_ideal_sdp_bw_after_urgent / 100));
+ }
+}
+
+static float calculate_net_bw_in_kbytes_sec(struct _vcs_dpi_voltage_scaling_st *entry)
+{
+ float memory_bw_kbytes_sec = entry->dram_speed_mts * dcn3_21_soc.num_chans *
+ dcn3_21_soc.dram_channel_width_bytes * ((float)dcn3_21_soc.pct_ideal_dram_sdp_bw_after_urgent_pixel_only / 100);
+
+ float fabric_bw_kbytes_sec = entry->fabricclk_mhz * dcn3_21_soc.return_bus_width_bytes * ((float)dcn3_21_soc.pct_ideal_fabric_bw_after_urgent / 100);
+
+ float sdp_bw_kbytes_sec = entry->dcfclk_mhz * dcn3_21_soc.return_bus_width_bytes * ((float)dcn3_21_soc.pct_ideal_sdp_bw_after_urgent / 100);
+
+ float limiting_bw_kbytes_sec = memory_bw_kbytes_sec;
+
+ if (fabric_bw_kbytes_sec < limiting_bw_kbytes_sec)
+ limiting_bw_kbytes_sec = fabric_bw_kbytes_sec;
+
+ if (sdp_bw_kbytes_sec < limiting_bw_kbytes_sec)
+ limiting_bw_kbytes_sec = sdp_bw_kbytes_sec;
+
+ return limiting_bw_kbytes_sec;
+}
+
+static void insert_entry_into_table_sorted(struct _vcs_dpi_voltage_scaling_st *table, unsigned int *num_entries,
+ struct _vcs_dpi_voltage_scaling_st *entry)
+{
+ int index = 0;
+ int i = 0;
+ float net_bw_of_new_state = 0;
+
+ if (*num_entries == 0) {
+ table[0] = *entry;
+ (*num_entries)++;
+ } else {
+ net_bw_of_new_state = calculate_net_bw_in_kbytes_sec(entry);
+ while (net_bw_of_new_state > calculate_net_bw_in_kbytes_sec(&table[index])) {
+ index++;
+ if (index >= *num_entries)
+ break;
+ }
+
+ for (i = *num_entries; i > index; i--) {
+ table[i] = table[i - 1];
+ }
+
+ table[index] = *entry;
+ (*num_entries)++;
+ }
+}
+
+static void remove_entry_from_table_at_index(struct _vcs_dpi_voltage_scaling_st *table, unsigned int *num_entries,
+ unsigned int index)
+{
+ int i;
+
+ if (*num_entries == 0)
+ return;
+
+ for (i = index; i < *num_entries - 1; i++) {
+ table[i] = table[i + 1];
+ }
+ memset(&table[--(*num_entries)], 0, sizeof(struct _vcs_dpi_voltage_scaling_st));
+}
+
+static int build_synthetic_soc_states(struct clk_bw_params *bw_params,
+ struct _vcs_dpi_voltage_scaling_st *table, unsigned int *num_entries)
+{
+ int i, j;
+ struct _vcs_dpi_voltage_scaling_st entry = {0};
+
+ unsigned int max_dcfclk_mhz = 0, max_dispclk_mhz = 0, max_dppclk_mhz = 0,
+ max_phyclk_mhz = 0, max_dtbclk_mhz = 0, max_fclk_mhz = 0, max_uclk_mhz = 0;
+
+ unsigned int min_dcfclk_mhz = 199, min_fclk_mhz = 299;
+
+ static const unsigned int num_dcfclk_stas = 5;
+ unsigned int dcfclk_sta_targets[DC__VOLTAGE_STATES] = {199, 615, 906, 1324, 1564};
+
+ unsigned int num_uclk_dpms = 0;
+ unsigned int num_fclk_dpms = 0;
+ unsigned int num_dcfclk_dpms = 0;
+
+ for (i = 0; i < MAX_NUM_DPM_LVL; i++) {
+ if (bw_params->clk_table.entries[i].dcfclk_mhz > max_dcfclk_mhz)
+ max_dcfclk_mhz = bw_params->clk_table.entries[i].dcfclk_mhz;
+ if (bw_params->clk_table.entries[i].fclk_mhz > max_fclk_mhz)
+ max_fclk_mhz = bw_params->clk_table.entries[i].fclk_mhz;
+ if (bw_params->clk_table.entries[i].memclk_mhz > max_uclk_mhz)
+ max_uclk_mhz = bw_params->clk_table.entries[i].memclk_mhz;
+ if (bw_params->clk_table.entries[i].dispclk_mhz > max_dispclk_mhz)
+ max_dispclk_mhz = bw_params->clk_table.entries[i].dispclk_mhz;
+ if (bw_params->clk_table.entries[i].dppclk_mhz > max_dppclk_mhz)
+ max_dppclk_mhz = bw_params->clk_table.entries[i].dppclk_mhz;
+ if (bw_params->clk_table.entries[i].phyclk_mhz > max_phyclk_mhz)
+ max_phyclk_mhz = bw_params->clk_table.entries[i].phyclk_mhz;
+ if (bw_params->clk_table.entries[i].dtbclk_mhz > max_dtbclk_mhz)
+ max_dtbclk_mhz = bw_params->clk_table.entries[i].dtbclk_mhz;
+
+ if (bw_params->clk_table.entries[i].memclk_mhz > 0)
+ num_uclk_dpms++;
+ if (bw_params->clk_table.entries[i].fclk_mhz > 0)
+ num_fclk_dpms++;
+ if (bw_params->clk_table.entries[i].dcfclk_mhz > 0)
+ num_dcfclk_dpms++;
+ }
+
+ if (!max_dcfclk_mhz || !max_dispclk_mhz || !max_dtbclk_mhz)
+ return -1;
+
+ if (max_dppclk_mhz == 0)
+ max_dppclk_mhz = max_dispclk_mhz;
+
+ if (max_fclk_mhz == 0)
+ max_fclk_mhz = max_dcfclk_mhz * dcn3_21_soc.pct_ideal_sdp_bw_after_urgent / dcn3_21_soc.pct_ideal_fabric_bw_after_urgent;
+
+ if (max_phyclk_mhz == 0)
+ max_phyclk_mhz = dcn3_21_soc.clock_limits[0].phyclk_mhz;
+
+ *num_entries = 0;
+ entry.dispclk_mhz = max_dispclk_mhz;
+ entry.dscclk_mhz = max_dispclk_mhz / 3;
+ entry.dppclk_mhz = max_dppclk_mhz;
+ entry.dtbclk_mhz = max_dtbclk_mhz;
+ entry.phyclk_mhz = max_phyclk_mhz;
+ entry.phyclk_d18_mhz = dcn3_21_soc.clock_limits[0].phyclk_d18_mhz;
+ entry.phyclk_d32_mhz = dcn3_21_soc.clock_limits[0].phyclk_d32_mhz;
+
+ // Insert all the DCFCLK STAs
+ for (i = 0; i < num_dcfclk_stas; i++) {
+ entry.dcfclk_mhz = dcfclk_sta_targets[i];
+ entry.fabricclk_mhz = 0;
+ entry.dram_speed_mts = 0;
+
+ get_optimal_ntuple(&entry);
+ insert_entry_into_table_sorted(table, num_entries, &entry);
+ }
+
+ // Insert the max DCFCLK
+ entry.dcfclk_mhz = max_dcfclk_mhz;
+ entry.fabricclk_mhz = 0;
+ entry.dram_speed_mts = 0;
+
+ get_optimal_ntuple(&entry);
+ insert_entry_into_table_sorted(table, num_entries, &entry);
+
+ // Insert the UCLK DPMS
+ for (i = 0; i < num_uclk_dpms; i++) {
+ entry.dcfclk_mhz = 0;
+ entry.fabricclk_mhz = 0;
+ entry.dram_speed_mts = bw_params->clk_table.entries[i].memclk_mhz * 16;
+
+ get_optimal_ntuple(&entry);
+ insert_entry_into_table_sorted(table, num_entries, &entry);
+ }
+
+ // If FCLK is coarse grained, insert individual DPMs.
+ if (num_fclk_dpms > 2) {
+ for (i = 0; i < num_fclk_dpms; i++) {
+ entry.dcfclk_mhz = 0;
+ entry.fabricclk_mhz = bw_params->clk_table.entries[i].fclk_mhz;
+ entry.dram_speed_mts = 0;
+
+ get_optimal_ntuple(&entry);
+ insert_entry_into_table_sorted(table, num_entries, &entry);
+ }
+ }
+ // If FCLK fine grained, only insert max
+ else {
+ entry.dcfclk_mhz = 0;
+ entry.fabricclk_mhz = max_fclk_mhz;
+ entry.dram_speed_mts = 0;
+
+ get_optimal_ntuple(&entry);
+ insert_entry_into_table_sorted(table, num_entries, &entry);
+ }
+
+ // At this point, the table contains all "points of interest" based on
+ // DPMs from PMFW, and STAs. Table is sorted by BW, and all clock
+ // ratios (by derate, are exact).
+
+ // Remove states that require higher clocks than are supported
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ if (table[i].dcfclk_mhz > max_dcfclk_mhz ||
+ table[i].fabricclk_mhz > max_fclk_mhz ||
+ table[i].dram_speed_mts > max_uclk_mhz * 16)
+ remove_entry_from_table_at_index(table, num_entries, i);
+ }
+
+ // At this point, the table only contains supported points of interest
+ // it could be used as is, but some states may be redundant due to
+ // coarse grained nature of some clocks, so we want to round up to
+ // coarse grained DPMs and remove duplicates.
+
+ // Round up UCLKs
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ for (j = 0; j < num_uclk_dpms; j++) {
+ if (bw_params->clk_table.entries[j].memclk_mhz * 16 >= table[i].dram_speed_mts) {
+ table[i].dram_speed_mts = bw_params->clk_table.entries[j].memclk_mhz * 16;
+ break;
+ }
+ }
+ }
+
+ // If FCLK is coarse grained, round up to next DPMs
+ if (num_fclk_dpms > 2) {
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ for (j = 0; j < num_fclk_dpms; j++) {
+ if (bw_params->clk_table.entries[j].fclk_mhz >= table[i].fabricclk_mhz) {
+ table[i].fabricclk_mhz = bw_params->clk_table.entries[j].fclk_mhz;
+ break;
+ }
+ }
+ }
+ }
+ // Otherwise, round up to minimum.
+ else {
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ if (table[i].fabricclk_mhz < min_fclk_mhz) {
+ table[i].fabricclk_mhz = min_fclk_mhz;
+ break;
+ }
+ }
+ }
+
+ // Round DCFCLKs up to minimum
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ if (table[i].dcfclk_mhz < min_dcfclk_mhz) {
+ table[i].dcfclk_mhz = min_dcfclk_mhz;
+ break;
+ }
+ }
+
+ // Remove duplicate states, note duplicate states are always neighbouring since table is sorted.
+ i = 0;
+ while (i < *num_entries - 1) {
+ if (table[i].dcfclk_mhz == table[i + 1].dcfclk_mhz &&
+ table[i].fabricclk_mhz == table[i + 1].fabricclk_mhz &&
+ table[i].dram_speed_mts == table[i + 1].dram_speed_mts)
+ remove_entry_from_table_at_index(table, num_entries, i + 1);
+ else
+ i++;
+ }
+
+ // Fix up the state indicies
+ for (i = *num_entries - 1; i >= 0 ; i--) {
+ table[i].state = i;
+ }
+
+ return 0;
+}
+
/* dcn321_update_bw_bounding_box
* This would override some dcn3_2 ip_or_soc initial parameters hardcoded from spreadsheet
* with actual values as per dGPU SKU:
/* Overrides Clock levelsfrom CLK Mgr table entries as reported by PM FW */
if ((!IS_FPGA_MAXIMUS_DC(dc->ctx->dce_environment)) && (bw_params->clk_table.entries[0].memclk_mhz)) {
- unsigned int i = 0, j = 0, num_states = 0;
-
- unsigned int dcfclk_mhz[DC__VOLTAGE_STATES] = {0};
- unsigned int dram_speed_mts[DC__VOLTAGE_STATES] = {0};
- unsigned int optimal_uclk_for_dcfclk_sta_targets[DC__VOLTAGE_STATES] = {0};
- unsigned int optimal_dcfclk_for_uclk[DC__VOLTAGE_STATES] = {0};
-
- unsigned int dcfclk_sta_targets[DC__VOLTAGE_STATES] = {615, 906, 1324, 1564};
- unsigned int num_dcfclk_sta_targets = 4, num_uclk_states = 0;
- unsigned int max_dcfclk_mhz = 0, max_dispclk_mhz = 0, max_dppclk_mhz = 0, max_phyclk_mhz = 0;
-
- for (i = 0; i < MAX_NUM_DPM_LVL; i++) {
- if (bw_params->clk_table.entries[i].dcfclk_mhz > max_dcfclk_mhz)
- max_dcfclk_mhz = bw_params->clk_table.entries[i].dcfclk_mhz;
- if (bw_params->clk_table.entries[i].dispclk_mhz > max_dispclk_mhz)
- max_dispclk_mhz = bw_params->clk_table.entries[i].dispclk_mhz;
- if (bw_params->clk_table.entries[i].dppclk_mhz > max_dppclk_mhz)
- max_dppclk_mhz = bw_params->clk_table.entries[i].dppclk_mhz;
- if (bw_params->clk_table.entries[i].phyclk_mhz > max_phyclk_mhz)
- max_phyclk_mhz = bw_params->clk_table.entries[i].phyclk_mhz;
- }
- if (!max_dcfclk_mhz)
- max_dcfclk_mhz = dcn3_21_soc.clock_limits[0].dcfclk_mhz;
- if (!max_dispclk_mhz)
- max_dispclk_mhz = dcn3_21_soc.clock_limits[0].dispclk_mhz;
- if (!max_dppclk_mhz)
- max_dppclk_mhz = dcn3_21_soc.clock_limits[0].dppclk_mhz;
- if (!max_phyclk_mhz)
- max_phyclk_mhz = dcn3_21_soc.clock_limits[0].phyclk_mhz;
-
- if (max_dcfclk_mhz > dcfclk_sta_targets[num_dcfclk_sta_targets-1]) {
- // If max DCFCLK is greater than the max DCFCLK STA target, insert into the DCFCLK STA target array
- dcfclk_sta_targets[num_dcfclk_sta_targets] = max_dcfclk_mhz;
- num_dcfclk_sta_targets++;
- } else if (max_dcfclk_mhz < dcfclk_sta_targets[num_dcfclk_sta_targets-1]) {
- // If max DCFCLK is less than the max DCFCLK STA target, cap values and remove duplicates
- for (i = 0; i < num_dcfclk_sta_targets; i++) {
- if (dcfclk_sta_targets[i] > max_dcfclk_mhz) {
- dcfclk_sta_targets[i] = max_dcfclk_mhz;
- break;
+ if (dc->debug.use_legacy_soc_bb_mechanism) {
+ unsigned int i = 0, j = 0, num_states = 0;
+
+ unsigned int dcfclk_mhz[DC__VOLTAGE_STATES] = {0};
+ unsigned int dram_speed_mts[DC__VOLTAGE_STATES] = {0};
+ unsigned int optimal_uclk_for_dcfclk_sta_targets[DC__VOLTAGE_STATES] = {0};
+ unsigned int optimal_dcfclk_for_uclk[DC__VOLTAGE_STATES] = {0};
+
+ unsigned int dcfclk_sta_targets[DC__VOLTAGE_STATES] = {615, 906, 1324, 1564};
+ unsigned int num_dcfclk_sta_targets = 4, num_uclk_states = 0;
+ unsigned int max_dcfclk_mhz = 0, max_dispclk_mhz = 0, max_dppclk_mhz = 0, max_phyclk_mhz = 0;
+
+ for (i = 0; i < MAX_NUM_DPM_LVL; i++) {
+ if (bw_params->clk_table.entries[i].dcfclk_mhz > max_dcfclk_mhz)
+ max_dcfclk_mhz = bw_params->clk_table.entries[i].dcfclk_mhz;
+ if (bw_params->clk_table.entries[i].dispclk_mhz > max_dispclk_mhz)
+ max_dispclk_mhz = bw_params->clk_table.entries[i].dispclk_mhz;
+ if (bw_params->clk_table.entries[i].dppclk_mhz > max_dppclk_mhz)
+ max_dppclk_mhz = bw_params->clk_table.entries[i].dppclk_mhz;
+ if (bw_params->clk_table.entries[i].phyclk_mhz > max_phyclk_mhz)
+ max_phyclk_mhz = bw_params->clk_table.entries[i].phyclk_mhz;
+ }
+ if (!max_dcfclk_mhz)
+ max_dcfclk_mhz = dcn3_21_soc.clock_limits[0].dcfclk_mhz;
+ if (!max_dispclk_mhz)
+ max_dispclk_mhz = dcn3_21_soc.clock_limits[0].dispclk_mhz;
+ if (!max_dppclk_mhz)
+ max_dppclk_mhz = dcn3_21_soc.clock_limits[0].dppclk_mhz;
+ if (!max_phyclk_mhz)
+ max_phyclk_mhz = dcn3_21_soc.clock_limits[0].phyclk_mhz;
+
+ if (max_dcfclk_mhz > dcfclk_sta_targets[num_dcfclk_sta_targets-1]) {
+ // If max DCFCLK is greater than the max DCFCLK STA target, insert into the DCFCLK STA target array
+ dcfclk_sta_targets[num_dcfclk_sta_targets] = max_dcfclk_mhz;
+ num_dcfclk_sta_targets++;
+ } else if (max_dcfclk_mhz < dcfclk_sta_targets[num_dcfclk_sta_targets-1]) {
+ // If max DCFCLK is less than the max DCFCLK STA target, cap values and remove duplicates
+ for (i = 0; i < num_dcfclk_sta_targets; i++) {
+ if (dcfclk_sta_targets[i] > max_dcfclk_mhz) {
+ dcfclk_sta_targets[i] = max_dcfclk_mhz;
+ break;
+ }
}
+ // Update size of array since we "removed" duplicates
+ num_dcfclk_sta_targets = i + 1;
}
- // Update size of array since we "removed" duplicates
- num_dcfclk_sta_targets = i + 1;
- }
- num_uclk_states = bw_params->clk_table.num_entries;
+ num_uclk_states = bw_params->clk_table.num_entries;
- // Calculate optimal dcfclk for each uclk
- for (i = 0; i < num_uclk_states; i++) {
- dcn321_get_optimal_dcfclk_fclk_for_uclk(bw_params->clk_table.entries[i].memclk_mhz * 16,
- &optimal_dcfclk_for_uclk[i], NULL);
- if (optimal_dcfclk_for_uclk[i] < bw_params->clk_table.entries[0].dcfclk_mhz) {
- optimal_dcfclk_for_uclk[i] = bw_params->clk_table.entries[0].dcfclk_mhz;
+ // Calculate optimal dcfclk for each uclk
+ for (i = 0; i < num_uclk_states; i++) {
+ dcn321_get_optimal_dcfclk_fclk_for_uclk(bw_params->clk_table.entries[i].memclk_mhz * 16,
+ &optimal_dcfclk_for_uclk[i], NULL);
+ if (optimal_dcfclk_for_uclk[i] < bw_params->clk_table.entries[0].dcfclk_mhz) {
+ optimal_dcfclk_for_uclk[i] = bw_params->clk_table.entries[0].dcfclk_mhz;
+ }
}
- }
- // Calculate optimal uclk for each dcfclk sta target
- for (i = 0; i < num_dcfclk_sta_targets; i++) {
- for (j = 0; j < num_uclk_states; j++) {
- if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j]) {
- optimal_uclk_for_dcfclk_sta_targets[i] =
- bw_params->clk_table.entries[j].memclk_mhz * 16;
- break;
+ // Calculate optimal uclk for each dcfclk sta target
+ for (i = 0; i < num_dcfclk_sta_targets; i++) {
+ for (j = 0; j < num_uclk_states; j++) {
+ if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j]) {
+ optimal_uclk_for_dcfclk_sta_targets[i] =
+ bw_params->clk_table.entries[j].memclk_mhz * 16;
+ break;
+ }
}
}
- }
- i = 0;
- j = 0;
- // create the final dcfclk and uclk table
- while (i < num_dcfclk_sta_targets && j < num_uclk_states && num_states < DC__VOLTAGE_STATES) {
- if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j] && i < num_dcfclk_sta_targets) {
- dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
- dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
- } else {
- if (j < num_uclk_states && optimal_dcfclk_for_uclk[j] <= max_dcfclk_mhz) {
- dcfclk_mhz[num_states] = optimal_dcfclk_for_uclk[j];
- dram_speed_mts[num_states++] = bw_params->clk_table.entries[j++].memclk_mhz * 16;
+ i = 0;
+ j = 0;
+ // create the final dcfclk and uclk table
+ while (i < num_dcfclk_sta_targets && j < num_uclk_states && num_states < DC__VOLTAGE_STATES) {
+ if (dcfclk_sta_targets[i] < optimal_dcfclk_for_uclk[j] && i < num_dcfclk_sta_targets) {
+ dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
+ dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
} else {
- j = num_uclk_states;
+ if (j < num_uclk_states && optimal_dcfclk_for_uclk[j] <= max_dcfclk_mhz) {
+ dcfclk_mhz[num_states] = optimal_dcfclk_for_uclk[j];
+ dram_speed_mts[num_states++] = bw_params->clk_table.entries[j++].memclk_mhz * 16;
+ } else {
+ j = num_uclk_states;
+ }
}
}
- }
- while (i < num_dcfclk_sta_targets && num_states < DC__VOLTAGE_STATES) {
- dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
- dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
- }
+ while (i < num_dcfclk_sta_targets && num_states < DC__VOLTAGE_STATES) {
+ dcfclk_mhz[num_states] = dcfclk_sta_targets[i];
+ dram_speed_mts[num_states++] = optimal_uclk_for_dcfclk_sta_targets[i++];
+ }
- while (j < num_uclk_states && num_states < DC__VOLTAGE_STATES &&
- optimal_dcfclk_for_uclk[j] <= max_dcfclk_mhz) {
- dcfclk_mhz[num_states] = optimal_dcfclk_for_uclk[j];
- dram_speed_mts[num_states++] = bw_params->clk_table.entries[j++].memclk_mhz * 16;
- }
+ while (j < num_uclk_states && num_states < DC__VOLTAGE_STATES &&
+ optimal_dcfclk_for_uclk[j] <= max_dcfclk_mhz) {
+ dcfclk_mhz[num_states] = optimal_dcfclk_for_uclk[j];
+ dram_speed_mts[num_states++] = bw_params->clk_table.entries[j++].memclk_mhz * 16;
+ }
- dcn3_21_soc.num_states = num_states;
- for (i = 0; i < dcn3_21_soc.num_states; i++) {
- dcn3_21_soc.clock_limits[i].state = i;
- dcn3_21_soc.clock_limits[i].dcfclk_mhz = dcfclk_mhz[i];
- dcn3_21_soc.clock_limits[i].fabricclk_mhz = dcfclk_mhz[i];
-
- /* Fill all states with max values of all these clocks */
- dcn3_21_soc.clock_limits[i].dispclk_mhz = max_dispclk_mhz;
- dcn3_21_soc.clock_limits[i].dppclk_mhz = max_dppclk_mhz;
- dcn3_21_soc.clock_limits[i].phyclk_mhz = max_phyclk_mhz;
- dcn3_21_soc.clock_limits[i].dscclk_mhz = max_dispclk_mhz / 3;
-
- /* Populate from bw_params for DTBCLK, SOCCLK */
- if (i > 0) {
- if (!bw_params->clk_table.entries[i].dtbclk_mhz) {
- dcn3_21_soc.clock_limits[i].dtbclk_mhz = dcn3_21_soc.clock_limits[i-1].dtbclk_mhz;
- } else {
- dcn3_21_soc.clock_limits[i].dtbclk_mhz = bw_params->clk_table.entries[i].dtbclk_mhz;
+ dcn3_21_soc.num_states = num_states;
+ for (i = 0; i < dcn3_21_soc.num_states; i++) {
+ dcn3_21_soc.clock_limits[i].state = i;
+ dcn3_21_soc.clock_limits[i].dcfclk_mhz = dcfclk_mhz[i];
+ dcn3_21_soc.clock_limits[i].fabricclk_mhz = dcfclk_mhz[i];
+
+ /* Fill all states with max values of all these clocks */
+ dcn3_21_soc.clock_limits[i].dispclk_mhz = max_dispclk_mhz;
+ dcn3_21_soc.clock_limits[i].dppclk_mhz = max_dppclk_mhz;
+ dcn3_21_soc.clock_limits[i].phyclk_mhz = max_phyclk_mhz;
+ dcn3_21_soc.clock_limits[i].dscclk_mhz = max_dispclk_mhz / 3;
+
+ /* Populate from bw_params for DTBCLK, SOCCLK */
+ if (i > 0) {
+ if (!bw_params->clk_table.entries[i].dtbclk_mhz) {
+ dcn3_21_soc.clock_limits[i].dtbclk_mhz = dcn3_21_soc.clock_limits[i-1].dtbclk_mhz;
+ } else {
+ dcn3_21_soc.clock_limits[i].dtbclk_mhz = bw_params->clk_table.entries[i].dtbclk_mhz;
+ }
+ } else if (bw_params->clk_table.entries[i].dtbclk_mhz) {
+ dcn3_21_soc.clock_limits[i].dtbclk_mhz = bw_params->clk_table.entries[i].dtbclk_mhz;
}
- } else if (bw_params->clk_table.entries[i].dtbclk_mhz) {
- dcn3_21_soc.clock_limits[i].dtbclk_mhz = bw_params->clk_table.entries[i].dtbclk_mhz;
- }
- if (!bw_params->clk_table.entries[i].socclk_mhz && i > 0)
- dcn3_21_soc.clock_limits[i].socclk_mhz = dcn3_21_soc.clock_limits[i-1].socclk_mhz;
- else
- dcn3_21_soc.clock_limits[i].socclk_mhz = bw_params->clk_table.entries[i].socclk_mhz;
+ if (!bw_params->clk_table.entries[i].socclk_mhz && i > 0)
+ dcn3_21_soc.clock_limits[i].socclk_mhz = dcn3_21_soc.clock_limits[i-1].socclk_mhz;
+ else
+ dcn3_21_soc.clock_limits[i].socclk_mhz = bw_params->clk_table.entries[i].socclk_mhz;
- if (!dram_speed_mts[i] && i > 0)
- dcn3_21_soc.clock_limits[i].dram_speed_mts = dcn3_21_soc.clock_limits[i-1].dram_speed_mts;
- else
- dcn3_21_soc.clock_limits[i].dram_speed_mts = dram_speed_mts[i];
+ if (!dram_speed_mts[i] && i > 0)
+ dcn3_21_soc.clock_limits[i].dram_speed_mts = dcn3_21_soc.clock_limits[i-1].dram_speed_mts;
+ else
+ dcn3_21_soc.clock_limits[i].dram_speed_mts = dram_speed_mts[i];
- /* These clocks cannot come from bw_params, always fill from dcn3_21_soc[0] */
- /* PHYCLK_D18, PHYCLK_D32 */
- dcn3_21_soc.clock_limits[i].phyclk_d18_mhz = dcn3_21_soc.clock_limits[0].phyclk_d18_mhz;
- dcn3_21_soc.clock_limits[i].phyclk_d32_mhz = dcn3_21_soc.clock_limits[0].phyclk_d32_mhz;
+ /* These clocks cannot come from bw_params, always fill from dcn3_21_soc[0] */
+ /* PHYCLK_D18, PHYCLK_D32 */
+ dcn3_21_soc.clock_limits[i].phyclk_d18_mhz = dcn3_21_soc.clock_limits[0].phyclk_d18_mhz;
+ dcn3_21_soc.clock_limits[i].phyclk_d32_mhz = dcn3_21_soc.clock_limits[0].phyclk_d32_mhz;
+ }
+ } else {
+ build_synthetic_soc_states(bw_params, dcn3_21_soc.clock_limits, &dcn3_21_soc.num_states);
}
/* Re-init DML with updated bb */
projects / mirror_ubuntu-kernels.git / commitdiff