[PATCH 29/31] drm/amd/display: Create dcn321_fpu file
Rodrigo Siqueira
Rodrigo.Siqueira at amd.com
Fri Jul 15 18:17:03 UTC 2022
The file dcn321_resource has a lot of FPU operations that should be
inside the dml folder. This commit introduces the dcn321_fpu file and
moves some of the FPU operation functions to this new file.
Reviewed-by: Harry Wentland <Harry.Wentland at amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
---
.../amd/display/dc/dcn321/dcn321_resource.c | 225 ++---------------
.../amd/display/dc/dcn321/dcn321_resource.h | 3 +
drivers/gpu/drm/amd/display/dc/dml/Makefile | 2 +
.../amd/display/dc/dml/dcn321/dcn321_fpu.c | 238 ++++++++++++++++++
.../amd/display/dc/dml/dcn321/dcn321_fpu.h | 36 +++
5 files changed, 296 insertions(+), 208 deletions(-)
create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
create mode 100644 drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.h
diff --git a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
index d218c6dd71aa..6619bcb30de7 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.c
@@ -37,6 +37,8 @@
#include "dcn20/dcn20_resource.h"
#include "dcn30/dcn30_resource.h"
+#include "dml/dcn321/dcn321_fpu.h"
+
#include "dcn10/dcn10_ipp.h"
#include "dcn30/dcn30_hubbub.h"
#include "dcn31/dcn31_hubbub.h"
@@ -120,134 +122,6 @@ static const struct IP_BASE DCN_BASE = { { { { 0x00000012, 0x000000C0, 0x000034C
#define fixed16_to_double(x) (((double)x) / ((double) (1 << 16)))
#define fixed16_to_double_to_cpu(x) fixed16_to_double(le32_to_cpu(x))
-#define DCN3_2_DEFAULT_DET_SIZE 256
-
-struct _vcs_dpi_ip_params_st dcn3_21_ip = {
- .gpuvm_enable = 0,
- .gpuvm_max_page_table_levels = 4,
- .hostvm_enable = 0,
- .rob_buffer_size_kbytes = 128,
- .det_buffer_size_kbytes = DCN3_2_DEFAULT_DET_SIZE,
- .config_return_buffer_size_in_kbytes = 1280,
- .compressed_buffer_segment_size_in_kbytes = 64,
- .meta_fifo_size_in_kentries = 22,
- .zero_size_buffer_entries = 512,
- .compbuf_reserved_space_64b = 256,
- .compbuf_reserved_space_zs = 64,
- .dpp_output_buffer_pixels = 2560,
- .opp_output_buffer_lines = 1,
- .pixel_chunk_size_kbytes = 8,
- .alpha_pixel_chunk_size_kbytes = 4, // not appearing in spreadsheet, match c code from hw team
- .min_pixel_chunk_size_bytes = 1024,
- .dcc_meta_buffer_size_bytes = 6272,
- .meta_chunk_size_kbytes = 2,
- .min_meta_chunk_size_bytes = 256,
- .writeback_chunk_size_kbytes = 8,
- .ptoi_supported = false,
- .num_dsc = 4,
- .maximum_dsc_bits_per_component = 12,
- .maximum_pixels_per_line_per_dsc_unit = 6016,
- .dsc422_native_support = true,
- .is_line_buffer_bpp_fixed = true,
- .line_buffer_fixed_bpp = 57,
- .line_buffer_size_bits = 1171920, //DPP doc, DCN3_2_DisplayMode_73.xlsm still shows as 986880 bits with 48 bpp
- .max_line_buffer_lines = 32,
- .writeback_interface_buffer_size_kbytes = 90,
- .max_num_dpp = 4,
- .max_num_otg = 4,
- .max_num_hdmi_frl_outputs = 1,
- .max_num_wb = 1,
- .max_dchub_pscl_bw_pix_per_clk = 4,
- .max_pscl_lb_bw_pix_per_clk = 2,
- .max_lb_vscl_bw_pix_per_clk = 4,
- .max_vscl_hscl_bw_pix_per_clk = 4,
- .max_hscl_ratio = 6,
- .max_vscl_ratio = 6,
- .max_hscl_taps = 8,
- .max_vscl_taps = 8,
- .dpte_buffer_size_in_pte_reqs_luma = 64,
- .dpte_buffer_size_in_pte_reqs_chroma = 34,
- .dispclk_ramp_margin_percent = 1,
- .max_inter_dcn_tile_repeaters = 8,
- .cursor_buffer_size = 16,
- .cursor_chunk_size = 2,
- .writeback_line_buffer_buffer_size = 0,
- .writeback_min_hscl_ratio = 1,
- .writeback_min_vscl_ratio = 1,
- .writeback_max_hscl_ratio = 1,
- .writeback_max_vscl_ratio = 1,
- .writeback_max_hscl_taps = 1,
- .writeback_max_vscl_taps = 1,
- .dppclk_delay_subtotal = 47,
- .dppclk_delay_scl = 50,
- .dppclk_delay_scl_lb_only = 16,
- .dppclk_delay_cnvc_formatter = 28,
- .dppclk_delay_cnvc_cursor = 6,
- .dispclk_delay_subtotal = 125,
- .dynamic_metadata_vm_enabled = false,
- .odm_combine_4to1_supported = false,
- .dcc_supported = true,
- .max_num_dp2p0_outputs = 2,
- .max_num_dp2p0_streams = 4,
-};
-
-struct _vcs_dpi_soc_bounding_box_st dcn3_21_soc = {
- .clock_limits = {
- {
- .state = 0,
- .dcfclk_mhz = 1564.0,
- .fabricclk_mhz = 400.0,
- .dispclk_mhz = 2150.0,
- .dppclk_mhz = 2150.0,
- .phyclk_mhz = 810.0,
- .phyclk_d18_mhz = 667.0,
- .phyclk_d32_mhz = 625.0,
- .socclk_mhz = 1200.0,
- .dscclk_mhz = 716.667,
- .dram_speed_mts = 1600.0,
- .dtbclk_mhz = 1564.0,
- },
- },
- .num_states = 1,
- .sr_exit_time_us = 5.20,
- .sr_enter_plus_exit_time_us = 9.60,
- .sr_exit_z8_time_us = 285.0,
- .sr_enter_plus_exit_z8_time_us = 320,
- .writeback_latency_us = 12.0,
- .round_trip_ping_latency_dcfclk_cycles = 263,
- .urgent_latency_pixel_data_only_us = 4.0,
- .urgent_latency_pixel_mixed_with_vm_data_us = 4.0,
- .urgent_latency_vm_data_only_us = 4.0,
- .fclk_change_latency_us = 20,
- .usr_retraining_latency_us = 2,
- .smn_latency_us = 2,
- .mall_allocated_for_dcn_mbytes = 64,
- .urgent_out_of_order_return_per_channel_pixel_only_bytes = 4096,
- .urgent_out_of_order_return_per_channel_pixel_and_vm_bytes = 4096,
- .urgent_out_of_order_return_per_channel_vm_only_bytes = 4096,
- .pct_ideal_sdp_bw_after_urgent = 100.0,
- .pct_ideal_fabric_bw_after_urgent = 67.0,
- .pct_ideal_dram_sdp_bw_after_urgent_pixel_only = 20.0,
- .pct_ideal_dram_sdp_bw_after_urgent_pixel_and_vm = 60.0, // N/A, for now keep as is until DML implemented
- .pct_ideal_dram_sdp_bw_after_urgent_vm_only = 30.0, // N/A, for now keep as is until DML implemented
- .pct_ideal_dram_bw_after_urgent_strobe = 67.0,
- .max_avg_sdp_bw_use_normal_percent = 80.0,
- .max_avg_fabric_bw_use_normal_percent = 60.0,
- .max_avg_dram_bw_use_normal_strobe_percent = 50.0,
- .max_avg_dram_bw_use_normal_percent = 15.0,
- .num_chans = 8,
- .dram_channel_width_bytes = 2,
- .fabric_datapath_to_dcn_data_return_bytes = 64,
- .return_bus_width_bytes = 64,
- .downspread_percent = 0.38,
- .dcn_downspread_percent = 0.5,
- .dram_clock_change_latency_us = 400,
- .dispclk_dppclk_vco_speed_mhz = 4300.0,
- .do_urgent_latency_adjustment = true,
- .urgent_latency_adjustment_fabric_clock_component_us = 1.0,
- .urgent_latency_adjustment_fabric_clock_reference_mhz = 1000,
-};
-
enum dcn321_clk_src_array_id {
DCN321_CLK_SRC_PLL0,
DCN321_CLK_SRC_PLL1,
@@ -1719,76 +1593,6 @@ static void dcn321_get_optimal_dcfclk_fclk_for_uclk(unsigned int uclk_mts,
(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)
{
@@ -1872,8 +1676,9 @@ static int build_synthetic_soc_states(struct clk_bw_params *bw_params,
entry.fabricclk_mhz = 0;
entry.dram_speed_mts = 0;
- get_optimal_ntuple(&entry);
- insert_entry_into_table_sorted(table, num_entries, &entry);
+ DC_FP_START();
+ dcn321_insert_entry_into_table_sorted(table, num_entries, &entry);
+ DC_FP_END();
}
// Insert the max DCFCLK
@@ -1881,8 +1686,9 @@ static int build_synthetic_soc_states(struct clk_bw_params *bw_params,
entry.fabricclk_mhz = 0;
entry.dram_speed_mts = 0;
- get_optimal_ntuple(&entry);
- insert_entry_into_table_sorted(table, num_entries, &entry);
+ DC_FP_START();
+ dcn321_insert_entry_into_table_sorted(table, num_entries, &entry);
+ DC_FP_END();
// Insert the UCLK DPMS
for (i = 0; i < num_uclk_dpms; i++) {
@@ -1890,8 +1696,9 @@ static int build_synthetic_soc_states(struct clk_bw_params *bw_params,
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);
+ DC_FP_START();
+ dcn321_insert_entry_into_table_sorted(table, num_entries, &entry);
+ DC_FP_END();
}
// If FCLK is coarse grained, insert individual DPMs.
@@ -1901,8 +1708,9 @@ static int build_synthetic_soc_states(struct clk_bw_params *bw_params,
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);
+ DC_FP_START();
+ dcn321_insert_entry_into_table_sorted(table, num_entries, &entry);
+ DC_FP_END();
}
}
// If FCLK fine grained, only insert max
@@ -1911,8 +1719,9 @@ static int build_synthetic_soc_states(struct clk_bw_params *bw_params,
entry.fabricclk_mhz = max_fclk_mhz;
entry.dram_speed_mts = 0;
- get_optimal_ntuple(&entry);
- insert_entry_into_table_sorted(table, num_entries, &entry);
+ DC_FP_START();
+ dcn321_insert_entry_into_table_sorted(table, num_entries, &entry);
+ DC_FP_END();
}
// At this point, the table contains all "points of interest" based on
diff --git a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.h b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.h
index 2732085a0e88..82cbf009f2d3 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.h
+++ b/drivers/gpu/drm/amd/display/dc/dcn321/dcn321_resource.h
@@ -31,6 +31,9 @@
#define TO_DCN321_RES_POOL(pool)\
container_of(pool, struct dcn321_resource_pool, base)
+extern struct _vcs_dpi_ip_params_st dcn3_21_ip;
+extern struct _vcs_dpi_soc_bounding_box_st dcn3_21_soc;
+
struct dcn321_resource_pool {
struct resource_pool base;
};
diff --git a/drivers/gpu/drm/amd/display/dc/dml/Makefile b/drivers/gpu/drm/amd/display/dc/dml/Makefile
index 01cb0ef3a2b0..359f6e9a1da0 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/dml/Makefile
@@ -76,6 +76,7 @@ CFLAGS_$(AMDDALPATH)/dc/dml/dcn32/dcn32_fpu.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn32/display_mode_vba_32.o := $(dml_ccflags) $(frame_warn_flag)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn32/display_rq_dlg_calc_32.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn32/display_mode_vba_util_32.o := $(dml_ccflags)
+CFLAGS_$(AMDDALPATH)/dc/dml/dcn321/dcn321_fpu.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn31/dcn31_fpu.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn301/dcn301_fpu.o := $(dml_ccflags)
CFLAGS_$(AMDDALPATH)/dc/dml/dcn302/dcn302_fpu.o := $(dml_ccflags)
@@ -126,6 +127,7 @@ DML += dcn31/display_mode_vba_31.o dcn31/display_rq_dlg_calc_31.o
DML += dcn32/display_mode_vba_32.o dcn32/display_rq_dlg_calc_32.o dcn32/display_mode_vba_util_32.o
DML += dcn31/dcn31_fpu.o
DML += dcn32/dcn32_fpu.o
+DML += dcn321/dcn321_fpu.o
DML += dcn301/dcn301_fpu.o
DML += dcn302/dcn302_fpu.o
DML += dcn303/dcn303_fpu.o
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
new file mode 100644
index 000000000000..78408698985b
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
@@ -0,0 +1,238 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "resource.h"
+#include "dcn321_fpu.h"
+#include "dcn32/dcn32_resource.h"
+#include "dcn321/dcn321_resource.h"
+
+#define DCN3_2_DEFAULT_DET_SIZE 256
+
+struct _vcs_dpi_ip_params_st dcn3_21_ip = {
+ .gpuvm_enable = 0,
+ .gpuvm_max_page_table_levels = 4,
+ .hostvm_enable = 0,
+ .rob_buffer_size_kbytes = 128,
+ .det_buffer_size_kbytes = DCN3_2_DEFAULT_DET_SIZE,
+ .config_return_buffer_size_in_kbytes = 1280,
+ .compressed_buffer_segment_size_in_kbytes = 64,
+ .meta_fifo_size_in_kentries = 22,
+ .zero_size_buffer_entries = 512,
+ .compbuf_reserved_space_64b = 256,
+ .compbuf_reserved_space_zs = 64,
+ .dpp_output_buffer_pixels = 2560,
+ .opp_output_buffer_lines = 1,
+ .pixel_chunk_size_kbytes = 8,
+ .alpha_pixel_chunk_size_kbytes = 4,
+ .min_pixel_chunk_size_bytes = 1024,
+ .dcc_meta_buffer_size_bytes = 6272,
+ .meta_chunk_size_kbytes = 2,
+ .min_meta_chunk_size_bytes = 256,
+ .writeback_chunk_size_kbytes = 8,
+ .ptoi_supported = false,
+ .num_dsc = 4,
+ .maximum_dsc_bits_per_component = 12,
+ .maximum_pixels_per_line_per_dsc_unit = 6016,
+ .dsc422_native_support = true,
+ .is_line_buffer_bpp_fixed = true,
+ .line_buffer_fixed_bpp = 57,
+ .line_buffer_size_bits = 1171920,
+ .max_line_buffer_lines = 32,
+ .writeback_interface_buffer_size_kbytes = 90,
+ .max_num_dpp = 4,
+ .max_num_otg = 4,
+ .max_num_hdmi_frl_outputs = 1,
+ .max_num_wb = 1,
+ .max_dchub_pscl_bw_pix_per_clk = 4,
+ .max_pscl_lb_bw_pix_per_clk = 2,
+ .max_lb_vscl_bw_pix_per_clk = 4,
+ .max_vscl_hscl_bw_pix_per_clk = 4,
+ .max_hscl_ratio = 6,
+ .max_vscl_ratio = 6,
+ .max_hscl_taps = 8,
+ .max_vscl_taps = 8,
+ .dpte_buffer_size_in_pte_reqs_luma = 64,
+ .dpte_buffer_size_in_pte_reqs_chroma = 34,
+ .dispclk_ramp_margin_percent = 1,
+ .max_inter_dcn_tile_repeaters = 8,
+ .cursor_buffer_size = 16,
+ .cursor_chunk_size = 2,
+ .writeback_line_buffer_buffer_size = 0,
+ .writeback_min_hscl_ratio = 1,
+ .writeback_min_vscl_ratio = 1,
+ .writeback_max_hscl_ratio = 1,
+ .writeback_max_vscl_ratio = 1,
+ .writeback_max_hscl_taps = 1,
+ .writeback_max_vscl_taps = 1,
+ .dppclk_delay_subtotal = 47,
+ .dppclk_delay_scl = 50,
+ .dppclk_delay_scl_lb_only = 16,
+ .dppclk_delay_cnvc_formatter = 28,
+ .dppclk_delay_cnvc_cursor = 6,
+ .dispclk_delay_subtotal = 125,
+ .dynamic_metadata_vm_enabled = false,
+ .odm_combine_4to1_supported = false,
+ .dcc_supported = true,
+ .max_num_dp2p0_outputs = 2,
+ .max_num_dp2p0_streams = 4,
+};
+
+struct _vcs_dpi_soc_bounding_box_st dcn3_21_soc = {
+ .clock_limits = {
+ {
+ .state = 0,
+ .dcfclk_mhz = 1564.0,
+ .fabricclk_mhz = 400.0,
+ .dispclk_mhz = 2150.0,
+ .dppclk_mhz = 2150.0,
+ .phyclk_mhz = 810.0,
+ .phyclk_d18_mhz = 667.0,
+ .phyclk_d32_mhz = 625.0,
+ .socclk_mhz = 1200.0,
+ .dscclk_mhz = 716.667,
+ .dram_speed_mts = 1600.0,
+ .dtbclk_mhz = 1564.0,
+ },
+ },
+ .num_states = 1,
+ .sr_exit_time_us = 5.20,
+ .sr_enter_plus_exit_time_us = 9.60,
+ .sr_exit_z8_time_us = 285.0,
+ .sr_enter_plus_exit_z8_time_us = 320,
+ .writeback_latency_us = 12.0,
+ .round_trip_ping_latency_dcfclk_cycles = 263,
+ .urgent_latency_pixel_data_only_us = 4.0,
+ .urgent_latency_pixel_mixed_with_vm_data_us = 4.0,
+ .urgent_latency_vm_data_only_us = 4.0,
+ .fclk_change_latency_us = 20,
+ .usr_retraining_latency_us = 2,
+ .smn_latency_us = 2,
+ .mall_allocated_for_dcn_mbytes = 64,
+ .urgent_out_of_order_return_per_channel_pixel_only_bytes = 4096,
+ .urgent_out_of_order_return_per_channel_pixel_and_vm_bytes = 4096,
+ .urgent_out_of_order_return_per_channel_vm_only_bytes = 4096,
+ .pct_ideal_sdp_bw_after_urgent = 100.0,
+ .pct_ideal_fabric_bw_after_urgent = 67.0,
+ .pct_ideal_dram_sdp_bw_after_urgent_pixel_only = 20.0,
+ .pct_ideal_dram_sdp_bw_after_urgent_pixel_and_vm = 60.0, // N/A, for now keep as is until DML implemented
+ .pct_ideal_dram_sdp_bw_after_urgent_vm_only = 30.0, // N/A, for now keep as is until DML implemented
+ .pct_ideal_dram_bw_after_urgent_strobe = 67.0,
+ .max_avg_sdp_bw_use_normal_percent = 80.0,
+ .max_avg_fabric_bw_use_normal_percent = 60.0,
+ .max_avg_dram_bw_use_normal_strobe_percent = 50.0,
+ .max_avg_dram_bw_use_normal_percent = 15.0,
+ .num_chans = 8,
+ .dram_channel_width_bytes = 2,
+ .fabric_datapath_to_dcn_data_return_bytes = 64,
+ .return_bus_width_bytes = 64,
+ .downspread_percent = 0.38,
+ .dcn_downspread_percent = 0.5,
+ .dram_clock_change_latency_us = 400,
+ .dispclk_dppclk_vco_speed_mhz = 4300.0,
+ .do_urgent_latency_adjustment = true,
+ .urgent_latency_adjustment_fabric_clock_component_us = 1.0,
+ .urgent_latency_adjustment_fabric_clock_reference_mhz = 1000,
+};
+
+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;
+ float fabric_bw_kbytes_sec;
+ float sdp_bw_kbytes_sec;
+ float limiting_bw_kbytes_sec;
+
+ 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);
+
+ 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);
+
+ 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);
+
+ 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;
+}
+
+void dcn321_insert_entry_into_table_sorted(struct _vcs_dpi_voltage_scaling_st *table,
+ unsigned int *num_entries,
+ struct _vcs_dpi_voltage_scaling_st *entry)
+{
+ int i = 0;
+ int index = 0;
+ float net_bw_of_new_state = 0;
+
+ dc_assert_fp_enabled();
+
+ get_optimal_ntuple(entry);
+
+ 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)++;
+ }
+}
+
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.h b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.h
new file mode 100644
index 000000000000..5b6b28526e18
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2022 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DCN32_FPU_H__
+#define __DCN32_FPU_H__
+
+#include "dml/display_mode_vba.h"
+
+void dcn321_insert_entry_into_table_sorted(struct _vcs_dpi_voltage_scaling_st *table,
+ unsigned int *num_entries,
+ struct _vcs_dpi_voltage_scaling_st *entry);
+
+#endif
--
2.37.0
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