// SPDX-License-Identifier: MIT
/*
* Copyright 2021 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 "dcn10/dcn10_resource.h"
#include "dcn10_fpu.h"
#include "resource.h"
#include "amdgpu_dm/dc_fpu.h"
/**
* DOC : DCN10 FPU manipulation Overview
*
* The DCN architecture relies on FPU operations , which require special
* compilation flags and the use of kernel_fpu_begin / end functions ; ideally , we
* want to avoid spreading FPU access across multiple files . With this idea in
* mind , this file aims to centralize DCN10 functions that require FPU access
* in a single place . Code in this file follows the following code pattern :
*
* 1 . Functions that use FPU operations should be isolated in static functions .
* 2 . The FPU functions should have the noinline attribute to ensure anything
* that deals with FP register is contained within this call .
* 3 . All function that needs to be accessed outside this file requires a
* public interface that not uses any FPU reference .
* 4 . Developers * * must not * * use DC_FP_START / END in this file , but they need
* to ensure that the caller invokes it before access any function available
* in this file . For this reason , public functions in this file must invoke
* dc_assert_fp_enabled ( ) ;
*
* Let ' s expand a little bit more the idea in the code pattern . To fully
* isolate FPU operations in a single place , we must avoid situations where
* compilers spill FP values to registers due to FP enable in a specific C
* file . Note that even if we isolate all FPU functions in a single file and
* call its interface from other files , the compiler might enable the use of
* FPU before we call DC_FP_START . Nevertheless , it is the programmer ' s
* responsibility to invoke DC_FP_START / END in the correct place . To highlight
* situations where developers forgot to use the FP protection before calling
* the DC FPU interface functions , we introduce a helper that checks if the
* function is invoked under FP protection . If not , it will trigger a kernel
* warning .
*/
struct _vcs_dpi_ip_params_st dcn1_0_ip = {
.rob_buffer_size_kbytes = 64 ,
.det_buffer_size_kbytes = 164 ,
.dpte_buffer_size_in_pte_reqs_luma = 42 ,
.dpp_output_buffer_pixels = 2560 ,
.opp_output_buffer_lines = 1 ,
.pixel_chunk_size_kbytes = 8 ,
.pte_enable = 1 ,
.pte_chunk_size_kbytes = 2 ,
.meta_chunk_size_kbytes = 2 ,
.writeback_chunk_size_kbytes = 2 ,
.line_buffer_size_bits = 589824 ,
.max_line_buffer_lines = 12 ,
.IsLineBufferBppFixed = 0 ,
.LineBufferFixedBpp = -1 ,
.writeback_luma_buffer_size_kbytes = 12 ,
.writeback_chroma_buffer_size_kbytes = 8 ,
.max_num_dpp = 4 ,
.max_num_wb = 2 ,
.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 = 4 ,
.max_vscl_ratio = 4 ,
.hscl_mults = 4 ,
.vscl_mults = 4 ,
.max_hscl_taps = 8 ,
.max_vscl_taps = 8 ,
.dispclk_ramp_margin_percent = 1 ,
.underscan_factor = 1 .10 ,
.min_vblank_lines = 14 ,
.dppclk_delay_subtotal = 90 ,
.dispclk_delay_subtotal = 42 ,
.dcfclk_cstate_latency = 10 ,
.max_inter_dcn_tile_repeaters = 8 ,
.can_vstartup_lines_exceed_vsync_plus_back_porch_lines_minus_one = 0 ,
.bug_forcing_LC_req_same_size_fixed = 0 ,
};
struct _vcs_dpi_soc_bounding_box_st dcn1_0_soc = {
.sr_exit_time_us = 9 .0 ,
.sr_enter_plus_exit_time_us = 11 .0 ,
.urgent_latency_us = 4 .0 ,
.writeback_latency_us = 12 .0 ,
.ideal_dram_bw_after_urgent_percent = 80 .0 ,
.max_request_size_bytes = 256 ,
.downspread_percent = 0 .5 ,
.dram_page_open_time_ns = 50 .0 ,
.dram_rw_turnaround_time_ns = 17 .5 ,
.dram_return_buffer_per_channel_bytes = 8192 ,
.round_trip_ping_latency_dcfclk_cycles = 128 ,
.urgent_out_of_order_return_per_channel_bytes = 256 ,
.channel_interleave_bytes = 256 ,
.num_banks = 8 ,
.num_chans = 2 ,
.vmm_page_size_bytes = 4096 ,
.dram_clock_change_latency_us = 17 .0 ,
.writeback_dram_clock_change_latency_us = 23 .0 ,
.return_bus_width_bytes = 64 ,
};
void dcn10_resource_construct_fp(struct dc *dc)
{
dc_assert_fp_enabled();
if (dc->ctx->dce_version == DCN_VERSION_1_01) {
struct dcn_soc_bounding_box *dcn_soc = dc->dcn_soc;
struct dcn_ip_params *dcn_ip = dc->dcn_ip;
struct display_mode_lib *dml = &dc->dml;
dml->ip.max_num_dpp = 3 ;
/* TODO how to handle 23.84? */
dcn_soc->dram_clock_change_latency = 23 ;
dcn_ip->max_num_dpp = 3 ;
}
if (ASICREV_IS_RV1_F0(dc->ctx->asic_id.hw_internal_rev)) {
dc->dcn_soc->urgent_latency = 3 ;
dc->debug.disable_dmcu = true ;
dc->dcn_soc->fabric_and_dram_bandwidth_vmax0p9 = 41 .60 f;
}
dc->dcn_soc->number_of_channels = dc->ctx->asic_id.vram_width / ddr4_dram_width;
ASSERT(dc->dcn_soc->number_of_channels < 3 );
if (dc->dcn_soc->number_of_channels == 0 )/*old sbios bug*/
dc->dcn_soc->number_of_channels = 2 ;
if (dc->dcn_soc->number_of_channels == 1 ) {
dc->dcn_soc->fabric_and_dram_bandwidth_vmax0p9 = 19 .2 f;
dc->dcn_soc->fabric_and_dram_bandwidth_vnom0p8 = 17 .066 f;
dc->dcn_soc->fabric_and_dram_bandwidth_vmid0p72 = 14 .933 f;
dc->dcn_soc->fabric_and_dram_bandwidth_vmin0p65 = 12 .8 f;
if (ASICREV_IS_RV1_F0(dc->ctx->asic_id.hw_internal_rev))
dc->dcn_soc->fabric_and_dram_bandwidth_vmax0p9 = 20 .80 f;
}
}
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