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linux/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dsc.c
Eryk Brol 5e061a4d02 drm/amd/display: Rename bytes_pp to the correct bits_pp 
[Why]
Struct dcn_dsc_state is used for reading current state
and parameters of DSC on a pipe, the target rate parameter
uses bytes per pixel even though its reading BITS_PER_PIXEL
register.

[How]
Changing it to Bits Per Pixel for consistency.

Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Mikita Lipski <Mikita.Lipski@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-06 16:37:47 -04:00

727 lines
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/*
* Copyright 2017 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 "reg_helper.h"
#include "dcn20_dsc.h"
#include "dsc/dscc_types.h"
static void dsc_log_pps(struct display_stream_compressor *dsc, struct drm_dsc_config *pps);
static bool dsc_prepare_config(const struct dsc_config *dsc_cfg, struct dsc_reg_values *dsc_reg_vals,
struct dsc_optc_config *dsc_optc_cfg);
static void dsc_init_reg_values(struct dsc_reg_values *reg_vals);
static void dsc_update_from_dsc_parameters(struct dsc_reg_values *reg_vals, const struct dsc_parameters *dsc_params);
static void dsc_write_to_registers(struct display_stream_compressor *dsc, const struct dsc_reg_values *reg_vals);
static enum dsc_pixel_format dsc_dc_pixel_encoding_to_dsc_pixel_format(enum dc_pixel_encoding dc_pix_enc, bool is_ycbcr422_simple);
static enum dsc_bits_per_comp dsc_dc_color_depth_to_dsc_bits_per_comp(enum dc_color_depth);
/* Object I/F functions */
static void dsc2_get_enc_caps(struct dsc_enc_caps *dsc_enc_caps, int pixel_clock_100Hz);
static void dsc2_read_state(struct display_stream_compressor *dsc, struct dcn_dsc_state *s);
static bool dsc2_validate_stream(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg);
static void dsc2_set_config(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg,
struct dsc_optc_config *dsc_optc_cfg);
static bool dsc2_get_packed_pps(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, uint8_t *dsc_packed_pps);
static void dsc2_enable(struct display_stream_compressor *dsc, int opp_pipe);
static void dsc2_disable(struct display_stream_compressor *dsc);
const struct dsc_funcs dcn20_dsc_funcs = {
.dsc_get_enc_caps = dsc2_get_enc_caps,
.dsc_read_state = dsc2_read_state,
.dsc_validate_stream = dsc2_validate_stream,
.dsc_set_config = dsc2_set_config,
.dsc_get_packed_pps = dsc2_get_packed_pps,
.dsc_enable = dsc2_enable,
.dsc_disable = dsc2_disable,
};
/* Macro definitios for REG_SET macros*/
#define CTX \
dsc20->base.ctx
#define REG(reg)\
dsc20->dsc_regs->reg
#undef FN
#define FN(reg_name, field_name) \
dsc20->dsc_shift->field_name, dsc20->dsc_mask->field_name
#define DC_LOGGER \
dsc->ctx->logger
enum dsc_bits_per_comp {
DSC_BPC_8 = 8,
DSC_BPC_10 = 10,
DSC_BPC_12 = 12,
DSC_BPC_UNKNOWN
};
/* API functions (external or via structure->function_pointer) */
void dsc2_construct(struct dcn20_dsc *dsc,
struct dc_context *ctx,
int inst,
const struct dcn20_dsc_registers *dsc_regs,
const struct dcn20_dsc_shift *dsc_shift,
const struct dcn20_dsc_mask *dsc_mask)
{
dsc->base.ctx = ctx;
dsc->base.inst = inst;
dsc->base.funcs = &dcn20_dsc_funcs;
dsc->dsc_regs = dsc_regs;
dsc->dsc_shift = dsc_shift;
dsc->dsc_mask = dsc_mask;
dsc->max_image_width = 5184;
}
#define DCN20_MAX_PIXEL_CLOCK_Mhz 1188
#define DCN20_MAX_DISPLAY_CLOCK_Mhz 1200
/* This returns the capabilities for a single DSC encoder engine. Number of slices and total throughput
* can be doubled, tripled etc. by using additional DSC engines.
*/
static void dsc2_get_enc_caps(struct dsc_enc_caps *dsc_enc_caps, int pixel_clock_100Hz)
{
dsc_enc_caps->dsc_version = 0x21; /* v1.2 - DP spec defined it in reverse order and we kept it */
dsc_enc_caps->slice_caps.bits.NUM_SLICES_1 = 1;
dsc_enc_caps->slice_caps.bits.NUM_SLICES_2 = 1;
dsc_enc_caps->slice_caps.bits.NUM_SLICES_3 = 1;
dsc_enc_caps->slice_caps.bits.NUM_SLICES_4 = 1;
dsc_enc_caps->lb_bit_depth = 13;
dsc_enc_caps->is_block_pred_supported = true;
dsc_enc_caps->color_formats.bits.RGB = 1;
dsc_enc_caps->color_formats.bits.YCBCR_444 = 1;
dsc_enc_caps->color_formats.bits.YCBCR_SIMPLE_422 = 1;
dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_422 = 0;
dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_420 = 1;
dsc_enc_caps->color_depth.bits.COLOR_DEPTH_8_BPC = 1;
dsc_enc_caps->color_depth.bits.COLOR_DEPTH_10_BPC = 1;
dsc_enc_caps->color_depth.bits.COLOR_DEPTH_12_BPC = 1;
/* Maximum total throughput with all the slices combined. This is different from how DP spec specifies it.
* Our decoder's total throughput in Pix/s is equal to DISPCLK. This is then shared between slices.
* The value below is the absolute maximum value. The actual throughput may be lower, but it'll always
* be sufficient to process the input pixel rate fed into a single DSC engine.
*/
dsc_enc_caps->max_total_throughput_mps = DCN20_MAX_DISPLAY_CLOCK_Mhz;
/* For pixel clock bigger than a single-pipe limit we'll need two engines, which then doubles our
* throughput and number of slices, but also introduces a lower limit of 2 slices
*/
if (pixel_clock_100Hz >= DCN20_MAX_PIXEL_CLOCK_Mhz*10000) {
dsc_enc_caps->slice_caps.bits.NUM_SLICES_1 = 0;
dsc_enc_caps->slice_caps.bits.NUM_SLICES_8 = 1;
dsc_enc_caps->max_total_throughput_mps = DCN20_MAX_DISPLAY_CLOCK_Mhz * 2;
}
// TODO DSC: This is actually image width limitation, not a slice width. This should be added to the criteria to use ODM.
dsc_enc_caps->max_slice_width = 5184; /* (including 64 overlap pixels for eDP MSO mode) */
dsc_enc_caps->bpp_increment_div = 16; /* 1/16th of a bit */
}
/* this function read dsc related register fields to be logged later in dcn10_log_hw_state
* into a dcn_dsc_state struct.
*/
static void dsc2_read_state(struct display_stream_compressor *dsc, struct dcn_dsc_state *s)
{
struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc);
REG_GET(DSC_TOP_CONTROL, DSC_CLOCK_EN, &s->dsc_clock_en);
REG_GET(DSCC_PPS_CONFIG3, SLICE_WIDTH, &s->dsc_slice_width);
REG_GET(DSCC_PPS_CONFIG1, BITS_PER_PIXEL, &s->dsc_bits_per_pixel);
REG_GET(DSCC_PPS_CONFIG3, SLICE_HEIGHT, &s->dsc_slice_height);
REG_GET(DSCC_PPS_CONFIG1, CHUNK_SIZE, &s->dsc_chunk_size);
REG_GET(DSCC_PPS_CONFIG2, PIC_WIDTH, &s->dsc_pic_width);
REG_GET(DSCC_PPS_CONFIG2, PIC_HEIGHT, &s->dsc_pic_height);
REG_GET(DSCC_PPS_CONFIG7, SLICE_BPG_OFFSET, &s->dsc_slice_bpg_offset);
}
static bool dsc2_validate_stream(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg)
{
struct dsc_optc_config dsc_optc_cfg;
struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc);
if (dsc_cfg->pic_width > dsc20->max_image_width)
return false;
return dsc_prepare_config(dsc_cfg, &dsc20->reg_vals, &dsc_optc_cfg);
}
static void dsc_config_log(struct display_stream_compressor *dsc, const struct dsc_config *config)
{
DC_LOG_DSC("\tnum_slices_h %d", config->dc_dsc_cfg.num_slices_h);
DC_LOG_DSC("\tnum_slices_v %d", config->dc_dsc_cfg.num_slices_v);
DC_LOG_DSC("\tbits_per_pixel %d (%d.%04d)",
config->dc_dsc_cfg.bits_per_pixel,
config->dc_dsc_cfg.bits_per_pixel / 16,
((config->dc_dsc_cfg.bits_per_pixel % 16) * 10000) / 16);
DC_LOG_DSC("\tcolor_depth %d", config->color_depth);
}
static void dsc2_set_config(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg,
struct dsc_optc_config *dsc_optc_cfg)
{
bool is_config_ok;
struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc);
DC_LOG_DSC(" ");
DC_LOG_DSC("Setting DSC Config at DSC inst %d", dsc->inst);
dsc_config_log(dsc, dsc_cfg);
is_config_ok = dsc_prepare_config(dsc_cfg, &dsc20->reg_vals, dsc_optc_cfg);
ASSERT(is_config_ok);
DC_LOG_DSC("programming DSC Picture Parameter Set (PPS):");
dsc_log_pps(dsc, &dsc20->reg_vals.pps);
dsc_write_to_registers(dsc, &dsc20->reg_vals);
}
static bool dsc2_get_packed_pps(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, uint8_t *dsc_packed_pps)
{
bool is_config_ok;
struct dsc_reg_values dsc_reg_vals;
struct dsc_optc_config dsc_optc_cfg;
memset(&dsc_reg_vals, 0, sizeof(dsc_reg_vals));
memset(&dsc_optc_cfg, 0, sizeof(dsc_optc_cfg));
DC_LOG_DSC("Getting packed DSC PPS for DSC Config:");
dsc_config_log(dsc, dsc_cfg);
DC_LOG_DSC("DSC Picture Parameter Set (PPS):");
is_config_ok = dsc_prepare_config(dsc_cfg, &dsc_reg_vals, &dsc_optc_cfg);
ASSERT(is_config_ok);
drm_dsc_pps_payload_pack((struct drm_dsc_picture_parameter_set *)dsc_packed_pps, &dsc_reg_vals.pps);
dsc_log_pps(dsc, &dsc_reg_vals.pps);
return is_config_ok;
}
static void dsc2_enable(struct display_stream_compressor *dsc, int opp_pipe)
{
struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc);
int dsc_clock_en;
int dsc_fw_config;
int enabled_opp_pipe;
DC_LOG_DSC("enable DSC %d at opp pipe %d", dsc->inst, opp_pipe);
REG_GET(DSC_TOP_CONTROL, DSC_CLOCK_EN, &dsc_clock_en);
REG_GET_2(DSCRM_DSC_FORWARD_CONFIG, DSCRM_DSC_FORWARD_EN, &dsc_fw_config, DSCRM_DSC_OPP_PIPE_SOURCE, &enabled_opp_pipe);
if ((dsc_clock_en || dsc_fw_config) && enabled_opp_pipe != opp_pipe) {
DC_LOG_DSC("ERROR: DSC %d at opp pipe %d already enabled!", dsc->inst, enabled_opp_pipe);
ASSERT(0);
}
REG_UPDATE(DSC_TOP_CONTROL,
DSC_CLOCK_EN, 1);
REG_UPDATE_2(DSCRM_DSC_FORWARD_CONFIG,
DSCRM_DSC_FORWARD_EN, 1,
DSCRM_DSC_OPP_PIPE_SOURCE, opp_pipe);
}
static void dsc2_disable(struct display_stream_compressor *dsc)
{
struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc);
int dsc_clock_en;
int dsc_fw_config;
int enabled_opp_pipe;
DC_LOG_DSC("disable DSC %d", dsc->inst);
REG_GET(DSC_TOP_CONTROL, DSC_CLOCK_EN, &dsc_clock_en);
REG_GET_2(DSCRM_DSC_FORWARD_CONFIG, DSCRM_DSC_FORWARD_EN, &dsc_fw_config, DSCRM_DSC_OPP_PIPE_SOURCE, &enabled_opp_pipe);
if (!dsc_clock_en || !dsc_fw_config) {
DC_LOG_DSC("ERROR: DSC %d at opp pipe %d already disabled!", dsc->inst, enabled_opp_pipe);
ASSERT(0);
}
REG_UPDATE(DSCRM_DSC_FORWARD_CONFIG,
DSCRM_DSC_FORWARD_EN, 0);
REG_UPDATE(DSC_TOP_CONTROL,
DSC_CLOCK_EN, 0);
}
/* This module's internal functions */
static void dsc_log_pps(struct display_stream_compressor *dsc, struct drm_dsc_config *pps)
{
int i;
int bits_per_pixel = pps->bits_per_pixel;
DC_LOG_DSC("\tdsc_version_major %d", pps->dsc_version_major);
DC_LOG_DSC("\tdsc_version_minor %d", pps->dsc_version_minor);
DC_LOG_DSC("\tbits_per_component %d", pps->bits_per_component);
DC_LOG_DSC("\tline_buf_depth %d", pps->line_buf_depth);
DC_LOG_DSC("\tblock_pred_enable %d", pps->block_pred_enable);
DC_LOG_DSC("\tconvert_rgb %d", pps->convert_rgb);
DC_LOG_DSC("\tsimple_422 %d", pps->simple_422);
DC_LOG_DSC("\tvbr_enable %d", pps->vbr_enable);
DC_LOG_DSC("\tbits_per_pixel %d (%d.%04d)", bits_per_pixel, bits_per_pixel / 16, ((bits_per_pixel % 16) * 10000) / 16);
DC_LOG_DSC("\tpic_height %d", pps->pic_height);
DC_LOG_DSC("\tpic_width %d", pps->pic_width);
DC_LOG_DSC("\tslice_height %d", pps->slice_height);
DC_LOG_DSC("\tslice_width %d", pps->slice_width);
DC_LOG_DSC("\tslice_chunk_size %d", pps->slice_chunk_size);
DC_LOG_DSC("\tinitial_xmit_delay %d", pps->initial_xmit_delay);
DC_LOG_DSC("\tinitial_dec_delay %d", pps->initial_dec_delay);
DC_LOG_DSC("\tinitial_scale_value %d", pps->initial_scale_value);
DC_LOG_DSC("\tscale_increment_interval %d", pps->scale_increment_interval);
DC_LOG_DSC("\tscale_decrement_interval %d", pps->scale_decrement_interval);
DC_LOG_DSC("\tfirst_line_bpg_offset %d", pps->first_line_bpg_offset);
DC_LOG_DSC("\tnfl_bpg_offset %d", pps->nfl_bpg_offset);
DC_LOG_DSC("\tslice_bpg_offset %d", pps->slice_bpg_offset);
DC_LOG_DSC("\tinitial_offset %d", pps->initial_offset);
DC_LOG_DSC("\tfinal_offset %d", pps->final_offset);
DC_LOG_DSC("\tflatness_min_qp %d", pps->flatness_min_qp);
DC_LOG_DSC("\tflatness_max_qp %d", pps->flatness_max_qp);
/* DC_LOG_DSC("\trc_parameter_set %d", pps->rc_parameter_set); */
DC_LOG_DSC("\tnative_420 %d", pps->native_420);
DC_LOG_DSC("\tnative_422 %d", pps->native_422);
DC_LOG_DSC("\tsecond_line_bpg_offset %d", pps->second_line_bpg_offset);
DC_LOG_DSC("\tnsl_bpg_offset %d", pps->nsl_bpg_offset);
DC_LOG_DSC("\tsecond_line_offset_adj %d", pps->second_line_offset_adj);
DC_LOG_DSC("\trc_model_size %d", pps->rc_model_size);
DC_LOG_DSC("\trc_edge_factor %d", pps->rc_edge_factor);
DC_LOG_DSC("\trc_quant_incr_limit0 %d", pps->rc_quant_incr_limit0);
DC_LOG_DSC("\trc_quant_incr_limit1 %d", pps->rc_quant_incr_limit1);
DC_LOG_DSC("\trc_tgt_offset_high %d", pps->rc_tgt_offset_high);
DC_LOG_DSC("\trc_tgt_offset_low %d", pps->rc_tgt_offset_low);
for (i = 0; i < NUM_BUF_RANGES - 1; i++)
DC_LOG_DSC("\trc_buf_thresh[%d] %d", i, pps->rc_buf_thresh[i]);
for (i = 0; i < NUM_BUF_RANGES; i++) {
DC_LOG_DSC("\trc_range_parameters[%d].range_min_qp %d", i, pps->rc_range_params[i].range_min_qp);
DC_LOG_DSC("\trc_range_parameters[%d].range_max_qp %d", i, pps->rc_range_params[i].range_max_qp);
DC_LOG_DSC("\trc_range_parameters[%d].range_bpg_offset %d", i, pps->rc_range_params[i].range_bpg_offset);
}
}
static bool dsc_prepare_config(const struct dsc_config *dsc_cfg, struct dsc_reg_values *dsc_reg_vals,
struct dsc_optc_config *dsc_optc_cfg)
{
struct dsc_parameters dsc_params;
/* Validate input parameters */
ASSERT(dsc_cfg->dc_dsc_cfg.num_slices_h);
ASSERT(dsc_cfg->dc_dsc_cfg.num_slices_v);
ASSERT(dsc_cfg->dc_dsc_cfg.version_minor == 1 || dsc_cfg->dc_dsc_cfg.version_minor == 2);
ASSERT(dsc_cfg->pic_width);
ASSERT(dsc_cfg->pic_height);
ASSERT((dsc_cfg->dc_dsc_cfg.version_minor == 1 &&
(8 <= dsc_cfg->dc_dsc_cfg.linebuf_depth && dsc_cfg->dc_dsc_cfg.linebuf_depth <= 13)) ||
(dsc_cfg->dc_dsc_cfg.version_minor == 2 &&
((8 <= dsc_cfg->dc_dsc_cfg.linebuf_depth && dsc_cfg->dc_dsc_cfg.linebuf_depth <= 15) ||
dsc_cfg->dc_dsc_cfg.linebuf_depth == 0)));
ASSERT(96 <= dsc_cfg->dc_dsc_cfg.bits_per_pixel && dsc_cfg->dc_dsc_cfg.bits_per_pixel <= 0x3ff); // 6.0 <= bits_per_pixel <= 63.9375
if (!dsc_cfg->dc_dsc_cfg.num_slices_v || !dsc_cfg->dc_dsc_cfg.num_slices_h ||
!(dsc_cfg->dc_dsc_cfg.version_minor == 1 || dsc_cfg->dc_dsc_cfg.version_minor == 2) ||
!dsc_cfg->pic_width || !dsc_cfg->pic_height ||
!((dsc_cfg->dc_dsc_cfg.version_minor == 1 && // v1.1 line buffer depth range:
8 <= dsc_cfg->dc_dsc_cfg.linebuf_depth && dsc_cfg->dc_dsc_cfg.linebuf_depth <= 13) ||
(dsc_cfg->dc_dsc_cfg.version_minor == 2 && // v1.2 line buffer depth range:
((8 <= dsc_cfg->dc_dsc_cfg.linebuf_depth && dsc_cfg->dc_dsc_cfg.linebuf_depth <= 15) ||
dsc_cfg->dc_dsc_cfg.linebuf_depth == 0))) ||
!(96 <= dsc_cfg->dc_dsc_cfg.bits_per_pixel && dsc_cfg->dc_dsc_cfg.bits_per_pixel <= 0x3ff)) {
dm_output_to_console("%s: Invalid parameters\n", __func__);
return false;
}
dsc_init_reg_values(dsc_reg_vals);
/* Copy input config */
dsc_reg_vals->pixel_format = dsc_dc_pixel_encoding_to_dsc_pixel_format(dsc_cfg->pixel_encoding, dsc_cfg->dc_dsc_cfg.ycbcr422_simple);
dsc_reg_vals->num_slices_h = dsc_cfg->dc_dsc_cfg.num_slices_h;
dsc_reg_vals->num_slices_v = dsc_cfg->dc_dsc_cfg.num_slices_v;
dsc_reg_vals->pps.dsc_version_minor = dsc_cfg->dc_dsc_cfg.version_minor;
dsc_reg_vals->pps.pic_width = dsc_cfg->pic_width;
dsc_reg_vals->pps.pic_height = dsc_cfg->pic_height;
dsc_reg_vals->pps.bits_per_component = dsc_dc_color_depth_to_dsc_bits_per_comp(dsc_cfg->color_depth);
dsc_reg_vals->pps.block_pred_enable = dsc_cfg->dc_dsc_cfg.block_pred_enable;
dsc_reg_vals->pps.line_buf_depth = dsc_cfg->dc_dsc_cfg.linebuf_depth;
dsc_reg_vals->alternate_ich_encoding_en = dsc_reg_vals->pps.dsc_version_minor == 1 ? 0 : 1;
dsc_reg_vals->ich_reset_at_eol = (dsc_cfg->is_odm || dsc_reg_vals->num_slices_h > 1) ? 0xF : 0;
// TODO: in addition to validating slice height (pic height must be divisible by slice height),
// see what happens when the same condition doesn't apply for slice_width/pic_width.
dsc_reg_vals->pps.slice_width = dsc_cfg->pic_width / dsc_cfg->dc_dsc_cfg.num_slices_h;
dsc_reg_vals->pps.slice_height = dsc_cfg->pic_height / dsc_cfg->dc_dsc_cfg.num_slices_v;
ASSERT(dsc_reg_vals->pps.slice_height * dsc_cfg->dc_dsc_cfg.num_slices_v == dsc_cfg->pic_height);
if (!(dsc_reg_vals->pps.slice_height * dsc_cfg->dc_dsc_cfg.num_slices_v == dsc_cfg->pic_height)) {
dm_output_to_console("%s: pix height %d not divisible by num_slices_v %d\n\n", __func__, dsc_cfg->pic_height, dsc_cfg->dc_dsc_cfg.num_slices_v);
return false;
}
dsc_reg_vals->bpp_x32 = dsc_cfg->dc_dsc_cfg.bits_per_pixel << 1;
if (dsc_reg_vals->pixel_format == DSC_PIXFMT_NATIVE_YCBCR420 || dsc_reg_vals->pixel_format == DSC_PIXFMT_NATIVE_YCBCR422)
dsc_reg_vals->pps.bits_per_pixel = dsc_reg_vals->bpp_x32;
else
dsc_reg_vals->pps.bits_per_pixel = dsc_reg_vals->bpp_x32 >> 1;
dsc_reg_vals->pps.convert_rgb = dsc_reg_vals->pixel_format == DSC_PIXFMT_RGB ? 1 : 0;
dsc_reg_vals->pps.native_422 = (dsc_reg_vals->pixel_format == DSC_PIXFMT_NATIVE_YCBCR422);
dsc_reg_vals->pps.native_420 = (dsc_reg_vals->pixel_format == DSC_PIXFMT_NATIVE_YCBCR420);
dsc_reg_vals->pps.simple_422 = (dsc_reg_vals->pixel_format == DSC_PIXFMT_SIMPLE_YCBCR422);
if (dscc_compute_dsc_parameters(&dsc_reg_vals->pps, &dsc_params)) {
dm_output_to_console("%s: DSC config failed\n", __func__);
return false;
}
dsc_update_from_dsc_parameters(dsc_reg_vals, &dsc_params);
dsc_optc_cfg->bytes_per_pixel = dsc_params.bytes_per_pixel;
dsc_optc_cfg->slice_width = dsc_reg_vals->pps.slice_width;
dsc_optc_cfg->is_pixel_format_444 = dsc_reg_vals->pixel_format == DSC_PIXFMT_RGB ||
dsc_reg_vals->pixel_format == DSC_PIXFMT_YCBCR444 ||
dsc_reg_vals->pixel_format == DSC_PIXFMT_SIMPLE_YCBCR422;
return true;
}
static enum dsc_pixel_format dsc_dc_pixel_encoding_to_dsc_pixel_format(enum dc_pixel_encoding dc_pix_enc, bool is_ycbcr422_simple)
{
enum dsc_pixel_format dsc_pix_fmt = DSC_PIXFMT_UNKNOWN;
/* NOTE: We don't support DSC_PIXFMT_SIMPLE_YCBCR422 */
switch (dc_pix_enc) {
case PIXEL_ENCODING_RGB:
dsc_pix_fmt = DSC_PIXFMT_RGB;
break;
case PIXEL_ENCODING_YCBCR422:
if (is_ycbcr422_simple)
dsc_pix_fmt = DSC_PIXFMT_SIMPLE_YCBCR422;
else
dsc_pix_fmt = DSC_PIXFMT_NATIVE_YCBCR422;
break;
case PIXEL_ENCODING_YCBCR444:
dsc_pix_fmt = DSC_PIXFMT_YCBCR444;
break;
case PIXEL_ENCODING_YCBCR420:
dsc_pix_fmt = DSC_PIXFMT_NATIVE_YCBCR420;
break;
default:
dsc_pix_fmt = DSC_PIXFMT_UNKNOWN;
break;
}
ASSERT(dsc_pix_fmt != DSC_PIXFMT_UNKNOWN);
return dsc_pix_fmt;
}
static enum dsc_bits_per_comp dsc_dc_color_depth_to_dsc_bits_per_comp(enum dc_color_depth dc_color_depth)
{
enum dsc_bits_per_comp bpc = DSC_BPC_UNKNOWN;
switch (dc_color_depth) {
case COLOR_DEPTH_888:
bpc = DSC_BPC_8;
break;
case COLOR_DEPTH_101010:
bpc = DSC_BPC_10;
break;
case COLOR_DEPTH_121212:
bpc = DSC_BPC_12;
break;
default:
bpc = DSC_BPC_UNKNOWN;
break;
}
return bpc;
}
static void dsc_init_reg_values(struct dsc_reg_values *reg_vals)
{
int i;
memset(reg_vals, 0, sizeof(struct dsc_reg_values));
/* Non-PPS values */
reg_vals->dsc_clock_enable = 1;
reg_vals->dsc_clock_gating_disable = 0;
reg_vals->underflow_recovery_en = 0;
reg_vals->underflow_occurred_int_en = 0;
reg_vals->underflow_occurred_status = 0;
reg_vals->ich_reset_at_eol = 0;
reg_vals->alternate_ich_encoding_en = 0;
reg_vals->rc_buffer_model_size = 0;
/*reg_vals->disable_ich = 0;*/
reg_vals->dsc_dbg_en = 0;
for (i = 0; i < 4; i++)
reg_vals->rc_buffer_model_overflow_int_en[i] = 0;
/* PPS values */
reg_vals->pps.dsc_version_minor = 2;
reg_vals->pps.dsc_version_major = 1;
reg_vals->pps.line_buf_depth = 9;
reg_vals->pps.bits_per_component = 8;
reg_vals->pps.block_pred_enable = 1;
reg_vals->pps.slice_chunk_size = 0;
reg_vals->pps.pic_width = 0;
reg_vals->pps.pic_height = 0;
reg_vals->pps.slice_width = 0;
reg_vals->pps.slice_height = 0;
reg_vals->pps.initial_xmit_delay = 170;
reg_vals->pps.initial_dec_delay = 0;
reg_vals->pps.initial_scale_value = 0;
reg_vals->pps.scale_increment_interval = 0;
reg_vals->pps.scale_decrement_interval = 0;
reg_vals->pps.nfl_bpg_offset = 0;
reg_vals->pps.slice_bpg_offset = 0;
reg_vals->pps.nsl_bpg_offset = 0;
reg_vals->pps.initial_offset = 6144;
reg_vals->pps.final_offset = 0;
reg_vals->pps.flatness_min_qp = 3;
reg_vals->pps.flatness_max_qp = 12;
reg_vals->pps.rc_model_size = 8192;
reg_vals->pps.rc_edge_factor = 6;
reg_vals->pps.rc_quant_incr_limit0 = 11;
reg_vals->pps.rc_quant_incr_limit1 = 11;
reg_vals->pps.rc_tgt_offset_low = 3;
reg_vals->pps.rc_tgt_offset_high = 3;
}
/* Updates dsc_reg_values::reg_vals::xxx fields based on the values from computed params.
* This is required because dscc_compute_dsc_parameters returns a modified PPS, which in turn
* affects non-PPS register values.
*/
static void dsc_update_from_dsc_parameters(struct dsc_reg_values *reg_vals, const struct dsc_parameters *dsc_params)
{
int i;
reg_vals->pps = dsc_params->pps;
// pps_computed will have the "expanded" values; need to shift them to make them fit for regs.
for (i = 0; i < NUM_BUF_RANGES - 1; i++)
reg_vals->pps.rc_buf_thresh[i] = reg_vals->pps.rc_buf_thresh[i] >> 6;
reg_vals->rc_buffer_model_size = dsc_params->rc_buffer_model_size;
}
static void dsc_write_to_registers(struct display_stream_compressor *dsc, const struct dsc_reg_values *reg_vals)
{
uint32_t temp_int;
struct dcn20_dsc *dsc20 = TO_DCN20_DSC(dsc);
REG_SET(DSC_DEBUG_CONTROL, 0,
DSC_DBG_EN, reg_vals->dsc_dbg_en);
// dsccif registers
REG_SET_5(DSCCIF_CONFIG0, 0,
INPUT_INTERFACE_UNDERFLOW_RECOVERY_EN, reg_vals->underflow_recovery_en,
INPUT_INTERFACE_UNDERFLOW_OCCURRED_INT_EN, reg_vals->underflow_occurred_int_en,
INPUT_INTERFACE_UNDERFLOW_OCCURRED_STATUS, reg_vals->underflow_occurred_status,
INPUT_PIXEL_FORMAT, reg_vals->pixel_format,
DSCCIF_CONFIG0__BITS_PER_COMPONENT, reg_vals->pps.bits_per_component);
REG_SET_2(DSCCIF_CONFIG1, 0,
PIC_WIDTH, reg_vals->pps.pic_width,
PIC_HEIGHT, reg_vals->pps.pic_height);
// dscc registers
REG_SET_4(DSCC_CONFIG0, 0,
ICH_RESET_AT_END_OF_LINE, reg_vals->ich_reset_at_eol,
NUMBER_OF_SLICES_PER_LINE, reg_vals->num_slices_h - 1,
ALTERNATE_ICH_ENCODING_EN, reg_vals->alternate_ich_encoding_en,
NUMBER_OF_SLICES_IN_VERTICAL_DIRECTION, reg_vals->num_slices_v - 1);
REG_SET(DSCC_CONFIG1, 0,
DSCC_RATE_CONTROL_BUFFER_MODEL_SIZE, reg_vals->rc_buffer_model_size);
/*REG_SET_2(DSCC_CONFIG1, 0,
DSCC_RATE_CONTROL_BUFFER_MODEL_SIZE, reg_vals->rc_buffer_model_size,
DSCC_DISABLE_ICH, reg_vals->disable_ich);*/
REG_SET_4(DSCC_INTERRUPT_CONTROL_STATUS, 0,
DSCC_RATE_CONTROL_BUFFER_MODEL0_OVERFLOW_OCCURRED_INT_EN, reg_vals->rc_buffer_model_overflow_int_en[0],
DSCC_RATE_CONTROL_BUFFER_MODEL1_OVERFLOW_OCCURRED_INT_EN, reg_vals->rc_buffer_model_overflow_int_en[1],
DSCC_RATE_CONTROL_BUFFER_MODEL2_OVERFLOW_OCCURRED_INT_EN, reg_vals->rc_buffer_model_overflow_int_en[2],
DSCC_RATE_CONTROL_BUFFER_MODEL3_OVERFLOW_OCCURRED_INT_EN, reg_vals->rc_buffer_model_overflow_int_en[3]);
REG_SET_3(DSCC_PPS_CONFIG0, 0,
DSC_VERSION_MINOR, reg_vals->pps.dsc_version_minor,
LINEBUF_DEPTH, reg_vals->pps.line_buf_depth,
DSCC_PPS_CONFIG0__BITS_PER_COMPONENT, reg_vals->pps.bits_per_component);
if (reg_vals->pixel_format == DSC_PIXFMT_NATIVE_YCBCR420 || reg_vals->pixel_format == DSC_PIXFMT_NATIVE_YCBCR422)
temp_int = reg_vals->bpp_x32;
else
temp_int = reg_vals->bpp_x32 >> 1;
REG_SET_7(DSCC_PPS_CONFIG1, 0,
BITS_PER_PIXEL, temp_int,
SIMPLE_422, reg_vals->pixel_format == DSC_PIXFMT_SIMPLE_YCBCR422,
CONVERT_RGB, reg_vals->pixel_format == DSC_PIXFMT_RGB,
BLOCK_PRED_ENABLE, reg_vals->pps.block_pred_enable,
NATIVE_422, reg_vals->pixel_format == DSC_PIXFMT_NATIVE_YCBCR422,
NATIVE_420, reg_vals->pixel_format == DSC_PIXFMT_NATIVE_YCBCR420,
CHUNK_SIZE, reg_vals->pps.slice_chunk_size);
REG_SET_2(DSCC_PPS_CONFIG2, 0,
PIC_WIDTH, reg_vals->pps.pic_width,
PIC_HEIGHT, reg_vals->pps.pic_height);
REG_SET_2(DSCC_PPS_CONFIG3, 0,
SLICE_WIDTH, reg_vals->pps.slice_width,
SLICE_HEIGHT, reg_vals->pps.slice_height);
REG_SET(DSCC_PPS_CONFIG4, 0,
INITIAL_XMIT_DELAY, reg_vals->pps.initial_xmit_delay);
REG_SET_2(DSCC_PPS_CONFIG5, 0,
INITIAL_SCALE_VALUE, reg_vals->pps.initial_scale_value,
SCALE_INCREMENT_INTERVAL, reg_vals->pps.scale_increment_interval);
REG_SET_3(DSCC_PPS_CONFIG6, 0,
SCALE_DECREMENT_INTERVAL, reg_vals->pps.scale_decrement_interval,
FIRST_LINE_BPG_OFFSET, reg_vals->pps.first_line_bpg_offset,
SECOND_LINE_BPG_OFFSET, reg_vals->pps.second_line_bpg_offset);
REG_SET_2(DSCC_PPS_CONFIG7, 0,
NFL_BPG_OFFSET, reg_vals->pps.nfl_bpg_offset,
SLICE_BPG_OFFSET, reg_vals->pps.slice_bpg_offset);
REG_SET_2(DSCC_PPS_CONFIG8, 0,
NSL_BPG_OFFSET, reg_vals->pps.nsl_bpg_offset,
SECOND_LINE_OFFSET_ADJ, reg_vals->pps.second_line_offset_adj);
REG_SET_2(DSCC_PPS_CONFIG9, 0,
INITIAL_OFFSET, reg_vals->pps.initial_offset,
FINAL_OFFSET, reg_vals->pps.final_offset);
REG_SET_3(DSCC_PPS_CONFIG10, 0,
FLATNESS_MIN_QP, reg_vals->pps.flatness_min_qp,
FLATNESS_MAX_QP, reg_vals->pps.flatness_max_qp,
RC_MODEL_SIZE, reg_vals->pps.rc_model_size);
REG_SET_5(DSCC_PPS_CONFIG11, 0,
RC_EDGE_FACTOR, reg_vals->pps.rc_edge_factor,
RC_QUANT_INCR_LIMIT0, reg_vals->pps.rc_quant_incr_limit0,
RC_QUANT_INCR_LIMIT1, reg_vals->pps.rc_quant_incr_limit1,
RC_TGT_OFFSET_LO, reg_vals->pps.rc_tgt_offset_low,
RC_TGT_OFFSET_HI, reg_vals->pps.rc_tgt_offset_high);
REG_SET_4(DSCC_PPS_CONFIG12, 0,
RC_BUF_THRESH0, reg_vals->pps.rc_buf_thresh[0],
RC_BUF_THRESH1, reg_vals->pps.rc_buf_thresh[1],
RC_BUF_THRESH2, reg_vals->pps.rc_buf_thresh[2],
RC_BUF_THRESH3, reg_vals->pps.rc_buf_thresh[3]);
REG_SET_4(DSCC_PPS_CONFIG13, 0,
RC_BUF_THRESH4, reg_vals->pps.rc_buf_thresh[4],
RC_BUF_THRESH5, reg_vals->pps.rc_buf_thresh[5],
RC_BUF_THRESH6, reg_vals->pps.rc_buf_thresh[6],
RC_BUF_THRESH7, reg_vals->pps.rc_buf_thresh[7]);
REG_SET_4(DSCC_PPS_CONFIG14, 0,
RC_BUF_THRESH8, reg_vals->pps.rc_buf_thresh[8],
RC_BUF_THRESH9, reg_vals->pps.rc_buf_thresh[9],
RC_BUF_THRESH10, reg_vals->pps.rc_buf_thresh[10],
RC_BUF_THRESH11, reg_vals->pps.rc_buf_thresh[11]);
REG_SET_5(DSCC_PPS_CONFIG15, 0,
RC_BUF_THRESH12, reg_vals->pps.rc_buf_thresh[12],
RC_BUF_THRESH13, reg_vals->pps.rc_buf_thresh[13],
RANGE_MIN_QP0, reg_vals->pps.rc_range_params[0].range_min_qp,
RANGE_MAX_QP0, reg_vals->pps.rc_range_params[0].range_max_qp,
RANGE_BPG_OFFSET0, reg_vals->pps.rc_range_params[0].range_bpg_offset);
REG_SET_6(DSCC_PPS_CONFIG16, 0,
RANGE_MIN_QP1, reg_vals->pps.rc_range_params[1].range_min_qp,
RANGE_MAX_QP1, reg_vals->pps.rc_range_params[1].range_max_qp,
RANGE_BPG_OFFSET1, reg_vals->pps.rc_range_params[1].range_bpg_offset,
RANGE_MIN_QP2, reg_vals->pps.rc_range_params[2].range_min_qp,
RANGE_MAX_QP2, reg_vals->pps.rc_range_params[2].range_max_qp,
RANGE_BPG_OFFSET2, reg_vals->pps.rc_range_params[2].range_bpg_offset);
REG_SET_6(DSCC_PPS_CONFIG17, 0,
RANGE_MIN_QP3, reg_vals->pps.rc_range_params[3].range_min_qp,
RANGE_MAX_QP3, reg_vals->pps.rc_range_params[3].range_max_qp,
RANGE_BPG_OFFSET3, reg_vals->pps.rc_range_params[3].range_bpg_offset,
RANGE_MIN_QP4, reg_vals->pps.rc_range_params[4].range_min_qp,
RANGE_MAX_QP4, reg_vals->pps.rc_range_params[4].range_max_qp,
RANGE_BPG_OFFSET4, reg_vals->pps.rc_range_params[4].range_bpg_offset);
REG_SET_6(DSCC_PPS_CONFIG18, 0,
RANGE_MIN_QP5, reg_vals->pps.rc_range_params[5].range_min_qp,
RANGE_MAX_QP5, reg_vals->pps.rc_range_params[5].range_max_qp,
RANGE_BPG_OFFSET5, reg_vals->pps.rc_range_params[5].range_bpg_offset,
RANGE_MIN_QP6, reg_vals->pps.rc_range_params[6].range_min_qp,
RANGE_MAX_QP6, reg_vals->pps.rc_range_params[6].range_max_qp,
RANGE_BPG_OFFSET6, reg_vals->pps.rc_range_params[6].range_bpg_offset);
REG_SET_6(DSCC_PPS_CONFIG19, 0,
RANGE_MIN_QP7, reg_vals->pps.rc_range_params[7].range_min_qp,
RANGE_MAX_QP7, reg_vals->pps.rc_range_params[7].range_max_qp,
RANGE_BPG_OFFSET7, reg_vals->pps.rc_range_params[7].range_bpg_offset,
RANGE_MIN_QP8, reg_vals->pps.rc_range_params[8].range_min_qp,
RANGE_MAX_QP8, reg_vals->pps.rc_range_params[8].range_max_qp,
RANGE_BPG_OFFSET8, reg_vals->pps.rc_range_params[8].range_bpg_offset);
REG_SET_6(DSCC_PPS_CONFIG20, 0,
RANGE_MIN_QP9, reg_vals->pps.rc_range_params[9].range_min_qp,
RANGE_MAX_QP9, reg_vals->pps.rc_range_params[9].range_max_qp,
RANGE_BPG_OFFSET9, reg_vals->pps.rc_range_params[9].range_bpg_offset,
RANGE_MIN_QP10, reg_vals->pps.rc_range_params[10].range_min_qp,
RANGE_MAX_QP10, reg_vals->pps.rc_range_params[10].range_max_qp,
RANGE_BPG_OFFSET10, reg_vals->pps.rc_range_params[10].range_bpg_offset);
REG_SET_6(DSCC_PPS_CONFIG21, 0,
RANGE_MIN_QP11, reg_vals->pps.rc_range_params[11].range_min_qp,
RANGE_MAX_QP11, reg_vals->pps.rc_range_params[11].range_max_qp,
RANGE_BPG_OFFSET11, reg_vals->pps.rc_range_params[11].range_bpg_offset,
RANGE_MIN_QP12, reg_vals->pps.rc_range_params[12].range_min_qp,
RANGE_MAX_QP12, reg_vals->pps.rc_range_params[12].range_max_qp,
RANGE_BPG_OFFSET12, reg_vals->pps.rc_range_params[12].range_bpg_offset);
REG_SET_6(DSCC_PPS_CONFIG22, 0,
RANGE_MIN_QP13, reg_vals->pps.rc_range_params[13].range_min_qp,
RANGE_MAX_QP13, reg_vals->pps.rc_range_params[13].range_max_qp,
RANGE_BPG_OFFSET13, reg_vals->pps.rc_range_params[13].range_bpg_offset,
RANGE_MIN_QP14, reg_vals->pps.rc_range_params[14].range_min_qp,
RANGE_MAX_QP14, reg_vals->pps.rc_range_params[14].range_max_qp,
RANGE_BPG_OFFSET14, reg_vals->pps.rc_range_params[14].range_bpg_offset);
}
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