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/*
* 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
*
*/
// header file of functions being implemented
#include "dcn32_resource.h"
#include "dcn20/dcn20_resource.h"
#include "dml/dcn32/display_mode_vba_util_32.h"
/**
* ********************************************************************************************
* dcn32_helper_calculate_num_ways_for_subvp: Calculate number of ways needed for SubVP
*
* This function first checks the bytes required per pixel on the SubVP pipe, then calculates
* the total number of pixels required in the SubVP MALL region. These are used to calculate
* the number of cache lines used (then number of ways required) for SubVP MCLK switching.
*
* @param [in] dc: current dc state
* @param [in] context: new dc state
*
* @return: number of ways required for SubVP
*
* ********************************************************************************************
*/
uint32_t dcn32_helper_calculate_num_ways_for_subvp(struct dc *dc, struct dc_state *context)
{
uint32_t num_ways = 0;
uint32_t mall_region_pixels = 0;
uint32_t bytes_per_pixel = 0;
uint32_t cache_lines_used = 0;
uint32_t lines_per_way = 0;
uint32_t total_cache_lines = 0;
uint32_t bytes_in_mall = 0;
uint32_t num_mblks = 0;
uint32_t cache_lines_per_plane = 0;
uint32_t i = 0;
for (i = 0; i < dc->res_pool->pipe_count; i++) {
struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
// Find the phantom pipes
if (pipe->stream && pipe->plane_state && !pipe->top_pipe &&
pipe->stream->mall_stream_config.type == SUBVP_PHANTOM) {
bytes_per_pixel = pipe->plane_state->format >= SURFACE_PIXEL_FORMAT_GRPH_ARGB16161616 ? 8 : 4;
mall_region_pixels = pipe->stream->timing.h_addressable * pipe->stream->timing.v_addressable;
// For bytes required in MALL, calculate based on number of MBlks required
num_mblks = (mall_region_pixels * bytes_per_pixel +
DCN3_2_MALL_MBLK_SIZE_BYTES - 1) / DCN3_2_MALL_MBLK_SIZE_BYTES;
bytes_in_mall = num_mblks * DCN3_2_MALL_MBLK_SIZE_BYTES;
// cache lines used is total bytes / cache_line size. Add +2 for worst case alignment
// (MALL is 64-byte aligned)
cache_lines_per_plane = bytes_in_mall / dc->caps.cache_line_size + 2;
// For DCC we must cache the meat surface, so double cache lines required
if (pipe->plane_state->dcc.enable)
cache_lines_per_plane *= 2;
cache_lines_used += cache_lines_per_plane;
}
}
total_cache_lines = dc->caps.max_cab_allocation_bytes / dc->caps.cache_line_size;
lines_per_way = total_cache_lines / dc->caps.cache_num_ways;
num_ways = cache_lines_used / lines_per_way;
if (cache_lines_used % lines_per_way > 0)
num_ways++;
return num_ways;
}
void dcn32_merge_pipes_for_subvp(struct dc *dc,
struct dc_state *context)
{
uint32_t i;
/* merge pipes if necessary */
for (i = 0; i < dc->res_pool->pipe_count; i++) {
struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
// For now merge all pipes for SubVP since pipe split case isn't supported yet
/* if ODM merge we ignore mpc tree, mpo pipes will have their own flags */
if (pipe->prev_odm_pipe) {
/*split off odm pipe*/
pipe->prev_odm_pipe->next_odm_pipe = pipe->next_odm_pipe;
if (pipe->next_odm_pipe)
pipe->next_odm_pipe->prev_odm_pipe = pipe->prev_odm_pipe;
pipe->bottom_pipe = NULL;
pipe->next_odm_pipe = NULL;
pipe->plane_state = NULL;
pipe->stream = NULL;
pipe->top_pipe = NULL;
pipe->prev_odm_pipe = NULL;
if (pipe->stream_res.dsc)
dcn20_release_dsc(&context->res_ctx, dc->res_pool, &pipe->stream_res.dsc);
memset(&pipe->plane_res, 0, sizeof(pipe->plane_res));
memset(&pipe->stream_res, 0, sizeof(pipe->stream_res));
} else if (pipe->top_pipe && pipe->top_pipe->plane_state == pipe->plane_state) {
struct pipe_ctx *top_pipe = pipe->top_pipe;
struct pipe_ctx *bottom_pipe = pipe->bottom_pipe;
top_pipe->bottom_pipe = bottom_pipe;
if (bottom_pipe)
bottom_pipe->top_pipe = top_pipe;
pipe->top_pipe = NULL;
pipe->bottom_pipe = NULL;
pipe->plane_state = NULL;
pipe->stream = NULL;
memset(&pipe->plane_res, 0, sizeof(pipe->plane_res));
memset(&pipe->stream_res, 0, sizeof(pipe->stream_res));
}
}
}
bool dcn32_all_pipes_have_stream_and_plane(struct dc *dc,
struct dc_state *context)
{
uint32_t i;
for (i = 0; i < dc->res_pool->pipe_count; i++) {
struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
if (!pipe->stream)
continue;
if (!pipe->plane_state)
return false;
}
return true;
}
bool dcn32_subvp_in_use(struct dc *dc,
struct dc_state *context)
{
uint32_t i;
for (i = 0; i < dc->res_pool->pipe_count; i++) {
struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
if (pipe->stream && pipe->stream->mall_stream_config.type != SUBVP_NONE)
return true;
}
return false;
}
bool dcn32_mpo_in_use(struct dc_state *context)
{
uint32_t i;
for (i = 0; i < context->stream_count; i++) {
if (context->stream_status[i].plane_count > 1)
return true;
}
return false;
}
void dcn32_determine_det_override(struct dc_state *context, display_e2e_pipe_params_st *pipes,
bool *is_pipe_split_expected, int pipe_cnt)
{
int i, j, count, stream_segments, pipe_segments[MAX_PIPES];
if (context->stream_count > 0) {
stream_segments = 18 / context->stream_count;
for (i = 0; i < context->stream_count; i++) {
count = 0;
for (j = 0; j < pipe_cnt; j++) {
if (context->res_ctx.pipe_ctx[j].stream == context->streams[i]) {
count++;
if (is_pipe_split_expected[j])
count++;
}
}
pipe_segments[i] = stream_segments / count;
}
for (i = 0; i < pipe_cnt; i++) {
pipes[i].pipe.src.det_size_override = 0;
for (j = 0; j < context->stream_count; j++) {
if (context->res_ctx.pipe_ctx[i].stream == context->streams[j]) {
pipes[i].pipe.src.det_size_override = pipe_segments[j] * DCN3_2_DET_SEG_SIZE;
break;
}
}
}
} else {
for (i = 0; i < pipe_cnt; i++)
pipes[i].pipe.src.det_size_override = 4 * DCN3_2_DET_SEG_SIZE; //DCN3_2_DEFAULT_DET_SIZE
}
}
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