1088 lines
36 KiB
C
1088 lines
36 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2018 Intel Corporation
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*
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* Author: Gaurav K Singh <gaurav.k.singh@intel.com>
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* Manasi Navare <manasi.d.navare@intel.com>
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*/
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#include <drm/i915_drm.h>
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#include "i915_drv.h"
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#include "intel_drv.h"
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enum ROW_INDEX_BPP {
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ROW_INDEX_6BPP = 0,
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ROW_INDEX_8BPP,
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ROW_INDEX_10BPP,
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ROW_INDEX_12BPP,
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ROW_INDEX_15BPP,
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MAX_ROW_INDEX
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};
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enum COLUMN_INDEX_BPC {
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COLUMN_INDEX_8BPC = 0,
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COLUMN_INDEX_10BPC,
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COLUMN_INDEX_12BPC,
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COLUMN_INDEX_14BPC,
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COLUMN_INDEX_16BPC,
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MAX_COLUMN_INDEX
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};
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#define DSC_SUPPORTED_VERSION_MIN 1
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/* From DSC_v1.11 spec, rc_parameter_Set syntax element typically constant */
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static u16 rc_buf_thresh[] = {
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896, 1792, 2688, 3584, 4480, 5376, 6272, 6720, 7168, 7616,
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7744, 7872, 8000, 8064
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};
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struct rc_parameters {
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u16 initial_xmit_delay;
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u8 first_line_bpg_offset;
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u16 initial_offset;
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u8 flatness_min_qp;
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u8 flatness_max_qp;
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u8 rc_quant_incr_limit0;
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u8 rc_quant_incr_limit1;
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struct drm_dsc_rc_range_parameters rc_range_params[DSC_NUM_BUF_RANGES];
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};
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/*
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* Selected Rate Control Related Parameter Recommended Values
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* from DSC_v1.11 spec & C Model release: DSC_model_20161212
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*/
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static struct rc_parameters rc_params[][MAX_COLUMN_INDEX] = {
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{
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/* 6BPP/8BPC */
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{ 768, 15, 6144, 3, 13, 11, 11, {
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{ 0, 4, 0 }, { 1, 6, -2 }, { 3, 8, -2 }, { 4, 8, -4 },
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{ 5, 9, -6 }, { 5, 9, -6 }, { 6, 9, -6 }, { 6, 10, -8 },
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{ 7, 11, -8 }, { 8, 12, -10 }, { 9, 12, -10 }, { 10, 12, -12 },
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{ 10, 12, -12 }, { 11, 12, -12 }, { 13, 14, -12 }
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}
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},
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/* 6BPP/10BPC */
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{ 768, 15, 6144, 7, 17, 15, 15, {
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{ 0, 8, 0 }, { 3, 10, -2 }, { 7, 12, -2 }, { 8, 12, -4 },
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{ 9, 13, -6 }, { 9, 13, -6 }, { 10, 13, -6 }, { 10, 14, -8 },
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{ 11, 15, -8 }, { 12, 16, -10 }, { 13, 16, -10 },
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{ 14, 16, -12 }, { 14, 16, -12 }, { 15, 16, -12 },
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{ 17, 18, -12 }
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}
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},
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/* 6BPP/12BPC */
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{ 768, 15, 6144, 11, 21, 19, 19, {
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{ 0, 12, 0 }, { 5, 14, -2 }, { 11, 16, -2 }, { 12, 16, -4 },
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{ 13, 17, -6 }, { 13, 17, -6 }, { 14, 17, -6 }, { 14, 18, -8 },
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{ 15, 19, -8 }, { 16, 20, -10 }, { 17, 20, -10 },
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{ 18, 20, -12 }, { 18, 20, -12 }, { 19, 20, -12 },
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{ 21, 22, -12 }
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}
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},
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/* 6BPP/14BPC */
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{ 768, 15, 6144, 15, 25, 23, 27, {
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{ 0, 16, 0 }, { 7, 18, -2 }, { 15, 20, -2 }, { 16, 20, -4 },
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{ 17, 21, -6 }, { 17, 21, -6 }, { 18, 21, -6 }, { 18, 22, -8 },
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{ 19, 23, -8 }, { 20, 24, -10 }, { 21, 24, -10 },
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{ 22, 24, -12 }, { 22, 24, -12 }, { 23, 24, -12 },
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{ 25, 26, -12 }
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}
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},
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/* 6BPP/16BPC */
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{ 768, 15, 6144, 19, 29, 27, 27, {
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{ 0, 20, 0 }, { 9, 22, -2 }, { 19, 24, -2 }, { 20, 24, -4 },
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{ 21, 25, -6 }, { 21, 25, -6 }, { 22, 25, -6 }, { 22, 26, -8 },
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{ 23, 27, -8 }, { 24, 28, -10 }, { 25, 28, -10 },
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{ 26, 28, -12 }, { 26, 28, -12 }, { 27, 28, -12 },
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{ 29, 30, -12 }
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}
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},
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},
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{
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/* 8BPP/8BPC */
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{ 512, 12, 6144, 3, 12, 11, 11, {
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{ 0, 4, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 },
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{ 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 },
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{ 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, { 5, 12, -12 },
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{ 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 }
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}
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},
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/* 8BPP/10BPC */
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{ 512, 12, 6144, 7, 16, 15, 15, {
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{ 0, 4, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 },
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{ 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 },
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{ 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 },
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{ 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 }
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}
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},
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/* 8BPP/12BPC */
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{ 512, 12, 6144, 11, 20, 19, 19, {
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{ 0, 12, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 9, 14, -2 },
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{ 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 },
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{ 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 },
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{ 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 },
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{ 21, 23, -12 }
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}
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},
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/* 8BPP/14BPC */
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{ 512, 12, 6144, 15, 24, 23, 23, {
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{ 0, 12, 0 }, { 5, 13, 0 }, { 11, 15, 0 }, { 12, 17, -2 },
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{ 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 },
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{ 15, 21, -8 }, { 15, 22, -10 }, { 17, 22, -10 },
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{ 17, 23, -12 }, { 17, 23, -12 }, { 21, 24, -12 },
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{ 24, 25, -12 }
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}
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},
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/* 8BPP/16BPC */
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{ 512, 12, 6144, 19, 28, 27, 27, {
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{ 0, 12, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 15, 20, -2 },
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{ 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 },
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{ 19, 25, -8 }, { 19, 26, -10 }, { 21, 26, -10 },
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{ 21, 27, -12 }, { 21, 27, -12 }, { 25, 28, -12 },
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{ 28, 29, -12 }
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}
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},
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},
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{
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/* 10BPP/8BPC */
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{ 410, 15, 5632, 3, 12, 11, 11, {
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{ 0, 3, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 2, 6, -2 },
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{ 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 },
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{ 3, 9, -8 }, { 3, 9, -10 }, { 5, 10, -10 }, { 5, 10, -10 },
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{ 5, 11, -12 }, { 7, 11, -12 }, { 11, 12, -12 }
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}
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},
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/* 10BPP/10BPC */
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{ 410, 15, 5632, 7, 16, 15, 15, {
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{ 0, 7, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 6, 10, -2 },
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{ 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 },
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{ 7, 13, -8 }, { 7, 13, -10 }, { 9, 14, -10 }, { 9, 14, -10 },
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{ 9, 15, -12 }, { 11, 15, -12 }, { 15, 16, -12 }
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}
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},
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/* 10BPP/12BPC */
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{ 410, 15, 5632, 11, 20, 19, 19, {
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{ 0, 11, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 10, 14, -2 },
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{ 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 },
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{ 11, 17, -8 }, { 11, 17, -10 }, { 13, 18, -10 },
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{ 13, 18, -10 }, { 13, 19, -12 }, { 15, 19, -12 },
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{ 19, 20, -12 }
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}
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},
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/* 10BPP/14BPC */
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{ 410, 15, 5632, 15, 24, 23, 23, {
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{ 0, 11, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 13, 18, -2 },
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{ 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 },
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{ 15, 21, -8 }, { 15, 21, -10 }, { 17, 22, -10 },
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{ 17, 22, -10 }, { 17, 23, -12 }, { 19, 23, -12 },
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{ 23, 24, -12 }
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}
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},
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/* 10BPP/16BPC */
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{ 410, 15, 5632, 19, 28, 27, 27, {
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{ 0, 11, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 16, 20, -2 },
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{ 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 },
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{ 19, 25, -8 }, { 19, 25, -10 }, { 21, 26, -10 },
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{ 21, 26, -10 }, { 21, 27, -12 }, { 23, 27, -12 },
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{ 27, 28, -12 }
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}
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},
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},
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{
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/* 12BPP/8BPC */
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{ 341, 15, 2048, 3, 12, 11, 11, {
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{ 0, 2, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 },
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{ 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 },
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{ 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 },
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{ 5, 12, -12 }, { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 }
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}
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},
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/* 12BPP/10BPC */
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{ 341, 15, 2048, 7, 16, 15, 15, {
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{ 0, 2, 2 }, { 2, 5, 0 }, { 3, 7, 0 }, { 4, 8, -2 },
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{ 6, 9, -4 }, { 7, 10, -6 }, { 7, 11, -8 }, { 7, 12, -8 },
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{ 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 },
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{ 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 }
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}
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},
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/* 12BPP/12BPC */
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{ 341, 15, 2048, 11, 20, 19, 19, {
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{ 0, 6, 2 }, { 4, 9, 0 }, { 7, 11, 0 }, { 8, 12, -2 },
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{ 10, 13, -4 }, { 11, 14, -6 }, { 11, 15, -8 }, { 11, 16, -8 },
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{ 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 },
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{ 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 },
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{ 21, 23, -12 }
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}
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},
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/* 12BPP/14BPC */
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{ 341, 15, 2048, 15, 24, 23, 23, {
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{ 0, 6, 2 }, { 7, 10, 0 }, { 9, 13, 0 }, { 11, 16, -2 },
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{ 14, 17, -4 }, { 15, 18, -6 }, { 15, 19, -8 }, { 15, 20, -8 },
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{ 15, 20, -8 }, { 15, 21, -10 }, { 17, 21, -10 },
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{ 17, 21, -12 }, { 17, 21, -12 }, { 19, 22, -12 },
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{ 22, 23, -12 }
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}
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},
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/* 12BPP/16BPC */
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{ 341, 15, 2048, 19, 28, 27, 27, {
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{ 0, 6, 2 }, { 6, 11, 0 }, { 11, 15, 0 }, { 14, 18, -2 },
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{ 18, 21, -4 }, { 19, 22, -6 }, { 19, 23, -8 }, { 19, 24, -8 },
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{ 19, 24, -8 }, { 19, 25, -10 }, { 21, 25, -10 },
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{ 21, 25, -12 }, { 21, 25, -12 }, { 23, 26, -12 },
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{ 26, 27, -12 }
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}
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},
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},
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{
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/* 15BPP/8BPC */
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{ 273, 15, 2048, 3, 12, 11, 11, {
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{ 0, 0, 10 }, { 0, 1, 8 }, { 0, 1, 6 }, { 0, 2, 4 },
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{ 1, 2, 2 }, { 1, 3, 0 }, { 1, 3, -2 }, { 2, 4, -4 },
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{ 2, 5, -6 }, { 3, 5, -8 }, { 4, 6, -10 }, { 4, 7, -10 },
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{ 5, 7, -12 }, { 7, 8, -12 }, { 8, 9, -12 }
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}
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},
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/* 15BPP/10BPC */
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{ 273, 15, 2048, 7, 16, 15, 15, {
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{ 0, 2, 10 }, { 2, 5, 8 }, { 3, 5, 6 }, { 4, 6, 4 },
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{ 5, 6, 2 }, { 5, 7, 0 }, { 5, 7, -2 }, { 6, 8, -4 },
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{ 6, 9, -6 }, { 7, 9, -8 }, { 8, 10, -10 }, { 8, 11, -10 },
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{ 9, 11, -12 }, { 11, 12, -12 }, { 12, 13, -12 }
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}
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},
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/* 15BPP/12BPC */
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{ 273, 15, 2048, 11, 20, 19, 19, {
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{ 0, 4, 10 }, { 2, 7, 8 }, { 4, 9, 6 }, { 6, 11, 4 },
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{ 9, 11, 2 }, { 9, 11, 0 }, { 9, 12, -2 }, { 10, 12, -4 },
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{ 11, 13, -6 }, { 11, 13, -8 }, { 12, 14, -10 },
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{ 13, 15, -10 }, { 13, 15, -12 }, { 15, 16, -12 },
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{ 16, 17, -12 }
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}
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},
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/* 15BPP/14BPC */
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{ 273, 15, 2048, 15, 24, 23, 23, {
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{ 0, 4, 10 }, { 3, 8, 8 }, { 6, 11, 6 }, { 9, 14, 4 },
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{ 13, 15, 2 }, { 13, 15, 0 }, { 13, 16, -2 }, { 14, 16, -4 },
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{ 15, 17, -6 }, { 15, 17, -8 }, { 16, 18, -10 },
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{ 17, 19, -10 }, { 17, 19, -12 }, { 19, 20, -12 },
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{ 20, 21, -12 }
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}
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},
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/* 15BPP/16BPC */
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{ 273, 15, 2048, 19, 28, 27, 27, {
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{ 0, 4, 10 }, { 4, 9, 8 }, { 8, 13, 6 }, { 12, 17, 4 },
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{ 17, 19, 2 }, { 17, 20, 0 }, { 17, 20, -2 }, { 18, 20, -4 },
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{ 19, 21, -6 }, { 19, 21, -8 }, { 20, 22, -10 },
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{ 21, 23, -10 }, { 21, 23, -12 }, { 23, 24, -12 },
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{ 24, 25, -12 }
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}
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}
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}
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};
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static int get_row_index_for_rc_params(u16 compressed_bpp)
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{
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switch (compressed_bpp) {
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case 6:
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return ROW_INDEX_6BPP;
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case 8:
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return ROW_INDEX_8BPP;
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case 10:
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return ROW_INDEX_10BPP;
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case 12:
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return ROW_INDEX_12BPP;
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case 15:
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return ROW_INDEX_15BPP;
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default:
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return -EINVAL;
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}
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}
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static int get_column_index_for_rc_params(u8 bits_per_component)
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{
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switch (bits_per_component) {
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case 8:
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return COLUMN_INDEX_8BPC;
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case 10:
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return COLUMN_INDEX_10BPC;
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case 12:
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return COLUMN_INDEX_12BPC;
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case 14:
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return COLUMN_INDEX_14BPC;
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case 16:
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return COLUMN_INDEX_16BPC;
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default:
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return -EINVAL;
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}
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}
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static int intel_compute_rc_parameters(struct drm_dsc_config *vdsc_cfg)
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{
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unsigned long groups_per_line = 0;
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unsigned long groups_total = 0;
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unsigned long num_extra_mux_bits = 0;
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unsigned long slice_bits = 0;
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unsigned long hrd_delay = 0;
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unsigned long final_scale = 0;
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unsigned long rbs_min = 0;
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/* Number of groups used to code each line of a slice */
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groups_per_line = DIV_ROUND_UP(vdsc_cfg->slice_width,
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DSC_RC_PIXELS_PER_GROUP);
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/* chunksize in Bytes */
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vdsc_cfg->slice_chunk_size = DIV_ROUND_UP(vdsc_cfg->slice_width *
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vdsc_cfg->bits_per_pixel,
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(8 * 16));
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if (vdsc_cfg->convert_rgb)
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num_extra_mux_bits = 3 * (vdsc_cfg->mux_word_size +
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(4 * vdsc_cfg->bits_per_component + 4)
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- 2);
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else
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num_extra_mux_bits = 3 * vdsc_cfg->mux_word_size +
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(4 * vdsc_cfg->bits_per_component + 4) +
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2 * (4 * vdsc_cfg->bits_per_component) - 2;
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/* Number of bits in one Slice */
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slice_bits = 8 * vdsc_cfg->slice_chunk_size * vdsc_cfg->slice_height;
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while ((num_extra_mux_bits > 0) &&
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((slice_bits - num_extra_mux_bits) % vdsc_cfg->mux_word_size))
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num_extra_mux_bits--;
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if (groups_per_line < vdsc_cfg->initial_scale_value - 8)
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vdsc_cfg->initial_scale_value = groups_per_line + 8;
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/* scale_decrement_interval calculation according to DSC spec 1.11 */
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if (vdsc_cfg->initial_scale_value > 8)
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vdsc_cfg->scale_decrement_interval = groups_per_line /
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(vdsc_cfg->initial_scale_value - 8);
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else
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vdsc_cfg->scale_decrement_interval = DSC_SCALE_DECREMENT_INTERVAL_MAX;
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vdsc_cfg->final_offset = vdsc_cfg->rc_model_size -
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(vdsc_cfg->initial_xmit_delay *
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vdsc_cfg->bits_per_pixel + 8) / 16 + num_extra_mux_bits;
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if (vdsc_cfg->final_offset >= vdsc_cfg->rc_model_size) {
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DRM_DEBUG_KMS("FinalOfs < RcModelSze for this InitialXmitDelay\n");
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return -ERANGE;
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}
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final_scale = (vdsc_cfg->rc_model_size * 8) /
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(vdsc_cfg->rc_model_size - vdsc_cfg->final_offset);
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if (vdsc_cfg->slice_height > 1)
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/*
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* NflBpgOffset is 16 bit value with 11 fractional bits
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* hence we multiply by 2^11 for preserving the
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* fractional part
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*/
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vdsc_cfg->nfl_bpg_offset = DIV_ROUND_UP((vdsc_cfg->first_line_bpg_offset << 11),
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(vdsc_cfg->slice_height - 1));
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else
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vdsc_cfg->nfl_bpg_offset = 0;
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/* 2^16 - 1 */
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if (vdsc_cfg->nfl_bpg_offset > 65535) {
|
|
DRM_DEBUG_KMS("NflBpgOffset is too large for this slice height\n");
|
|
return -ERANGE;
|
|
}
|
|
|
|
/* Number of groups used to code the entire slice */
|
|
groups_total = groups_per_line * vdsc_cfg->slice_height;
|
|
|
|
/* slice_bpg_offset is 16 bit value with 11 fractional bits */
|
|
vdsc_cfg->slice_bpg_offset = DIV_ROUND_UP(((vdsc_cfg->rc_model_size -
|
|
vdsc_cfg->initial_offset +
|
|
num_extra_mux_bits) << 11),
|
|
groups_total);
|
|
|
|
if (final_scale > 9) {
|
|
/*
|
|
* ScaleIncrementInterval =
|
|
* finaloffset/((NflBpgOffset + SliceBpgOffset)*8(finalscale - 1.125))
|
|
* as (NflBpgOffset + SliceBpgOffset) has 11 bit fractional value,
|
|
* we need divide by 2^11 from pstDscCfg values
|
|
*/
|
|
vdsc_cfg->scale_increment_interval =
|
|
(vdsc_cfg->final_offset * (1 << 11)) /
|
|
((vdsc_cfg->nfl_bpg_offset +
|
|
vdsc_cfg->slice_bpg_offset) *
|
|
(final_scale - 9));
|
|
} else {
|
|
/*
|
|
* If finalScaleValue is less than or equal to 9, a value of 0 should
|
|
* be used to disable the scale increment at the end of the slice
|
|
*/
|
|
vdsc_cfg->scale_increment_interval = 0;
|
|
}
|
|
|
|
if (vdsc_cfg->scale_increment_interval > 65535) {
|
|
DRM_DEBUG_KMS("ScaleIncrementInterval is large for slice height\n");
|
|
return -ERANGE;
|
|
}
|
|
|
|
/*
|
|
* DSC spec mentions that bits_per_pixel specifies the target
|
|
* bits/pixel (bpp) rate that is used by the encoder,
|
|
* in steps of 1/16 of a bit per pixel
|
|
*/
|
|
rbs_min = vdsc_cfg->rc_model_size - vdsc_cfg->initial_offset +
|
|
DIV_ROUND_UP(vdsc_cfg->initial_xmit_delay *
|
|
vdsc_cfg->bits_per_pixel, 16) +
|
|
groups_per_line * vdsc_cfg->first_line_bpg_offset;
|
|
|
|
hrd_delay = DIV_ROUND_UP((rbs_min * 16), vdsc_cfg->bits_per_pixel);
|
|
vdsc_cfg->rc_bits = (hrd_delay * vdsc_cfg->bits_per_pixel) / 16;
|
|
vdsc_cfg->initial_dec_delay = hrd_delay - vdsc_cfg->initial_xmit_delay;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int intel_dp_compute_dsc_params(struct intel_dp *intel_dp,
|
|
struct intel_crtc_state *pipe_config)
|
|
{
|
|
struct drm_dsc_config *vdsc_cfg = &pipe_config->dp_dsc_cfg;
|
|
u16 compressed_bpp = pipe_config->dsc_params.compressed_bpp;
|
|
u8 i = 0;
|
|
int row_index = 0;
|
|
int column_index = 0;
|
|
u8 line_buf_depth = 0;
|
|
|
|
vdsc_cfg->pic_width = pipe_config->base.adjusted_mode.crtc_hdisplay;
|
|
vdsc_cfg->pic_height = pipe_config->base.adjusted_mode.crtc_vdisplay;
|
|
vdsc_cfg->slice_width = DIV_ROUND_UP(vdsc_cfg->pic_width,
|
|
pipe_config->dsc_params.slice_count);
|
|
/*
|
|
* Slice Height of 8 works for all currently available panels. So start
|
|
* with that if pic_height is an integral multiple of 8.
|
|
* Eventually add logic to try multiple slice heights.
|
|
*/
|
|
if (vdsc_cfg->pic_height % 8 == 0)
|
|
vdsc_cfg->slice_height = 8;
|
|
else if (vdsc_cfg->pic_height % 4 == 0)
|
|
vdsc_cfg->slice_height = 4;
|
|
else
|
|
vdsc_cfg->slice_height = 2;
|
|
|
|
/* Values filled from DSC Sink DPCD */
|
|
vdsc_cfg->dsc_version_major =
|
|
(intel_dp->dsc_dpcd[DP_DSC_REV - DP_DSC_SUPPORT] &
|
|
DP_DSC_MAJOR_MASK) >> DP_DSC_MAJOR_SHIFT;
|
|
vdsc_cfg->dsc_version_minor =
|
|
min(DSC_SUPPORTED_VERSION_MIN,
|
|
(intel_dp->dsc_dpcd[DP_DSC_REV - DP_DSC_SUPPORT] &
|
|
DP_DSC_MINOR_MASK) >> DP_DSC_MINOR_SHIFT);
|
|
|
|
vdsc_cfg->convert_rgb = intel_dp->dsc_dpcd[DP_DSC_DEC_COLOR_FORMAT_CAP - DP_DSC_SUPPORT] &
|
|
DP_DSC_RGB;
|
|
|
|
line_buf_depth = drm_dp_dsc_sink_line_buf_depth(intel_dp->dsc_dpcd);
|
|
if (!line_buf_depth) {
|
|
DRM_DEBUG_KMS("DSC Sink Line Buffer Depth invalid\n");
|
|
return -EINVAL;
|
|
}
|
|
if (vdsc_cfg->dsc_version_minor == 2)
|
|
vdsc_cfg->line_buf_depth = (line_buf_depth == DSC_1_2_MAX_LINEBUF_DEPTH_BITS) ?
|
|
DSC_1_2_MAX_LINEBUF_DEPTH_VAL : line_buf_depth;
|
|
else
|
|
vdsc_cfg->line_buf_depth = (line_buf_depth > DSC_1_1_MAX_LINEBUF_DEPTH_BITS) ?
|
|
DSC_1_1_MAX_LINEBUF_DEPTH_BITS : line_buf_depth;
|
|
|
|
/* Gen 11 does not support YCbCr */
|
|
vdsc_cfg->enable422 = false;
|
|
/* Gen 11 does not support VBR */
|
|
vdsc_cfg->vbr_enable = false;
|
|
vdsc_cfg->block_pred_enable =
|
|
intel_dp->dsc_dpcd[DP_DSC_BLK_PREDICTION_SUPPORT - DP_DSC_SUPPORT] &
|
|
DP_DSC_BLK_PREDICTION_IS_SUPPORTED;
|
|
|
|
/* Gen 11 only supports integral values of bpp */
|
|
vdsc_cfg->bits_per_pixel = compressed_bpp << 4;
|
|
vdsc_cfg->bits_per_component = pipe_config->pipe_bpp / 3;
|
|
|
|
for (i = 0; i < DSC_NUM_BUF_RANGES - 1; i++) {
|
|
/*
|
|
* six 0s are appended to the lsb of each threshold value
|
|
* internally in h/w.
|
|
* Only 8 bits are allowed for programming RcBufThreshold
|
|
*/
|
|
vdsc_cfg->rc_buf_thresh[i] = rc_buf_thresh[i] >> 6;
|
|
}
|
|
|
|
/*
|
|
* For 6bpp, RC Buffer threshold 12 and 13 need a different value
|
|
* as per C Model
|
|
*/
|
|
if (compressed_bpp == 6) {
|
|
vdsc_cfg->rc_buf_thresh[12] = 0x7C;
|
|
vdsc_cfg->rc_buf_thresh[13] = 0x7D;
|
|
}
|
|
|
|
row_index = get_row_index_for_rc_params(compressed_bpp);
|
|
column_index =
|
|
get_column_index_for_rc_params(vdsc_cfg->bits_per_component);
|
|
|
|
if (row_index < 0 || column_index < 0)
|
|
return -EINVAL;
|
|
|
|
vdsc_cfg->first_line_bpg_offset =
|
|
rc_params[row_index][column_index].first_line_bpg_offset;
|
|
vdsc_cfg->initial_xmit_delay =
|
|
rc_params[row_index][column_index].initial_xmit_delay;
|
|
vdsc_cfg->initial_offset =
|
|
rc_params[row_index][column_index].initial_offset;
|
|
vdsc_cfg->flatness_min_qp =
|
|
rc_params[row_index][column_index].flatness_min_qp;
|
|
vdsc_cfg->flatness_max_qp =
|
|
rc_params[row_index][column_index].flatness_max_qp;
|
|
vdsc_cfg->rc_quant_incr_limit0 =
|
|
rc_params[row_index][column_index].rc_quant_incr_limit0;
|
|
vdsc_cfg->rc_quant_incr_limit1 =
|
|
rc_params[row_index][column_index].rc_quant_incr_limit1;
|
|
|
|
for (i = 0; i < DSC_NUM_BUF_RANGES; i++) {
|
|
vdsc_cfg->rc_range_params[i].range_min_qp =
|
|
rc_params[row_index][column_index].rc_range_params[i].range_min_qp;
|
|
vdsc_cfg->rc_range_params[i].range_max_qp =
|
|
rc_params[row_index][column_index].rc_range_params[i].range_max_qp;
|
|
/*
|
|
* Range BPG Offset uses 2's complement and is only a 6 bits. So
|
|
* mask it to get only 6 bits.
|
|
*/
|
|
vdsc_cfg->rc_range_params[i].range_bpg_offset =
|
|
rc_params[row_index][column_index].rc_range_params[i].range_bpg_offset &
|
|
DSC_RANGE_BPG_OFFSET_MASK;
|
|
}
|
|
|
|
/*
|
|
* BitsPerComponent value determines mux_word_size:
|
|
* When BitsPerComponent is 12bpc, muxWordSize will be equal to 64 bits
|
|
* When BitsPerComponent is 8 or 10bpc, muxWordSize will be equal to
|
|
* 48 bits
|
|
*/
|
|
if (vdsc_cfg->bits_per_component == 8 ||
|
|
vdsc_cfg->bits_per_component == 10)
|
|
vdsc_cfg->mux_word_size = DSC_MUX_WORD_SIZE_8_10_BPC;
|
|
else if (vdsc_cfg->bits_per_component == 12)
|
|
vdsc_cfg->mux_word_size = DSC_MUX_WORD_SIZE_12_BPC;
|
|
|
|
/* RC_MODEL_SIZE is a constant across all configurations */
|
|
vdsc_cfg->rc_model_size = DSC_RC_MODEL_SIZE_CONST;
|
|
/* InitialScaleValue is a 6 bit value with 3 fractional bits (U3.3) */
|
|
vdsc_cfg->initial_scale_value = (vdsc_cfg->rc_model_size << 3) /
|
|
(vdsc_cfg->rc_model_size - vdsc_cfg->initial_offset);
|
|
|
|
return intel_compute_rc_parameters(vdsc_cfg);
|
|
}
|
|
|
|
enum intel_display_power_domain
|
|
intel_dsc_power_domain(const struct intel_crtc_state *crtc_state)
|
|
{
|
|
enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
|
|
|
|
/*
|
|
* On ICL VDSC/joining for eDP transcoder uses a separate power well PW2
|
|
* This requires POWER_DOMAIN_TRANSCODER_EDP_VDSC power domain.
|
|
* For any other transcoder, VDSC/joining uses the power well associated
|
|
* with the pipe/transcoder in use. Hence another reference on the
|
|
* transcoder power domain will suffice.
|
|
*/
|
|
if (cpu_transcoder == TRANSCODER_EDP)
|
|
return POWER_DOMAIN_TRANSCODER_EDP_VDSC;
|
|
else
|
|
return POWER_DOMAIN_TRANSCODER(cpu_transcoder);
|
|
}
|
|
|
|
static void intel_configure_pps_for_dsc_encoder(struct intel_encoder *encoder,
|
|
const struct intel_crtc_state *crtc_state)
|
|
{
|
|
struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
|
|
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
|
|
const struct drm_dsc_config *vdsc_cfg = &crtc_state->dp_dsc_cfg;
|
|
enum pipe pipe = crtc->pipe;
|
|
enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
|
|
u32 pps_val = 0;
|
|
u32 rc_buf_thresh_dword[4];
|
|
u32 rc_range_params_dword[8];
|
|
u8 num_vdsc_instances = (crtc_state->dsc_params.dsc_split) ? 2 : 1;
|
|
int i = 0;
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_0 registers */
|
|
pps_val = DSC_VER_MAJ | vdsc_cfg->dsc_version_minor <<
|
|
DSC_VER_MIN_SHIFT |
|
|
vdsc_cfg->bits_per_component << DSC_BPC_SHIFT |
|
|
vdsc_cfg->line_buf_depth << DSC_LINE_BUF_DEPTH_SHIFT;
|
|
if (vdsc_cfg->block_pred_enable)
|
|
pps_val |= DSC_BLOCK_PREDICTION;
|
|
if (vdsc_cfg->convert_rgb)
|
|
pps_val |= DSC_COLOR_SPACE_CONVERSION;
|
|
if (vdsc_cfg->enable422)
|
|
pps_val |= DSC_422_ENABLE;
|
|
if (vdsc_cfg->vbr_enable)
|
|
pps_val |= DSC_VBR_ENABLE;
|
|
DRM_INFO("PPS0 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_0, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_0, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_0(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_0(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_1 registers */
|
|
pps_val = 0;
|
|
pps_val |= DSC_BPP(vdsc_cfg->bits_per_pixel);
|
|
DRM_INFO("PPS1 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_1, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_1, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_1(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_2 registers */
|
|
pps_val = 0;
|
|
pps_val |= DSC_PIC_HEIGHT(vdsc_cfg->pic_height) |
|
|
DSC_PIC_WIDTH(vdsc_cfg->pic_width / num_vdsc_instances);
|
|
DRM_INFO("PPS2 = 0x%08x\n", pps_val);
|
|
if (encoder->type == INTEL_OUTPUT_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_2, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_2, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_2(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_2(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_3 registers */
|
|
pps_val = 0;
|
|
pps_val |= DSC_SLICE_HEIGHT(vdsc_cfg->slice_height) |
|
|
DSC_SLICE_WIDTH(vdsc_cfg->slice_width);
|
|
DRM_INFO("PPS3 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_3, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_3, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_3(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_3(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_4 registers */
|
|
pps_val = 0;
|
|
pps_val |= DSC_INITIAL_XMIT_DELAY(vdsc_cfg->initial_xmit_delay) |
|
|
DSC_INITIAL_DEC_DELAY(vdsc_cfg->initial_dec_delay);
|
|
DRM_INFO("PPS4 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_4, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_4, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_4(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_4(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_5 registers */
|
|
pps_val = 0;
|
|
pps_val |= DSC_SCALE_INC_INT(vdsc_cfg->scale_increment_interval) |
|
|
DSC_SCALE_DEC_INT(vdsc_cfg->scale_decrement_interval);
|
|
DRM_INFO("PPS5 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_5, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_5, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_5(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_5(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_6 registers */
|
|
pps_val = 0;
|
|
pps_val |= DSC_INITIAL_SCALE_VALUE(vdsc_cfg->initial_scale_value) |
|
|
DSC_FIRST_LINE_BPG_OFFSET(vdsc_cfg->first_line_bpg_offset) |
|
|
DSC_FLATNESS_MIN_QP(vdsc_cfg->flatness_min_qp) |
|
|
DSC_FLATNESS_MAX_QP(vdsc_cfg->flatness_max_qp);
|
|
DRM_INFO("PPS6 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_6, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_6, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_6(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_6(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_7 registers */
|
|
pps_val = 0;
|
|
pps_val |= DSC_SLICE_BPG_OFFSET(vdsc_cfg->slice_bpg_offset) |
|
|
DSC_NFL_BPG_OFFSET(vdsc_cfg->nfl_bpg_offset);
|
|
DRM_INFO("PPS7 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_7, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_7, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_7(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_7(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_8 registers */
|
|
pps_val = 0;
|
|
pps_val |= DSC_FINAL_OFFSET(vdsc_cfg->final_offset) |
|
|
DSC_INITIAL_OFFSET(vdsc_cfg->initial_offset);
|
|
DRM_INFO("PPS8 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_8, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_8, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_8(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_8(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_9 registers */
|
|
pps_val = 0;
|
|
pps_val |= DSC_RC_MODEL_SIZE(DSC_RC_MODEL_SIZE_CONST) |
|
|
DSC_RC_EDGE_FACTOR(DSC_RC_EDGE_FACTOR_CONST);
|
|
DRM_INFO("PPS9 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_9, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_9, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_9(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_9(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate PICTURE_PARAMETER_SET_10 registers */
|
|
pps_val = 0;
|
|
pps_val |= DSC_RC_QUANT_INC_LIMIT0(vdsc_cfg->rc_quant_incr_limit0) |
|
|
DSC_RC_QUANT_INC_LIMIT1(vdsc_cfg->rc_quant_incr_limit1) |
|
|
DSC_RC_TARGET_OFF_HIGH(DSC_RC_TGT_OFFSET_HI_CONST) |
|
|
DSC_RC_TARGET_OFF_LOW(DSC_RC_TGT_OFFSET_LO_CONST);
|
|
DRM_INFO("PPS10 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_10, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_10, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_10(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_10(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate Picture parameter set 16 */
|
|
pps_val = 0;
|
|
pps_val |= DSC_SLICE_CHUNK_SIZE(vdsc_cfg->slice_chunk_size) |
|
|
DSC_SLICE_PER_LINE((vdsc_cfg->pic_width / num_vdsc_instances) /
|
|
vdsc_cfg->slice_width) |
|
|
DSC_SLICE_ROW_PER_FRAME(vdsc_cfg->pic_height /
|
|
vdsc_cfg->slice_height);
|
|
DRM_INFO("PPS16 = 0x%08x\n", pps_val);
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_PICTURE_PARAMETER_SET_16, pps_val);
|
|
/*
|
|
* If 2 VDSC instances are needed, configure PPS for second
|
|
* VDSC
|
|
*/
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(DSCC_PICTURE_PARAMETER_SET_16, pps_val);
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_PICTURE_PARAMETER_SET_16(pipe), pps_val);
|
|
if (crtc_state->dsc_params.dsc_split)
|
|
I915_WRITE(ICL_DSC1_PICTURE_PARAMETER_SET_16(pipe),
|
|
pps_val);
|
|
}
|
|
|
|
/* Populate the RC_BUF_THRESH registers */
|
|
memset(rc_buf_thresh_dword, 0, sizeof(rc_buf_thresh_dword));
|
|
for (i = 0; i < DSC_NUM_BUF_RANGES - 1; i++) {
|
|
rc_buf_thresh_dword[i / 4] |=
|
|
(u32)(vdsc_cfg->rc_buf_thresh[i] <<
|
|
BITS_PER_BYTE * (i % 4));
|
|
DRM_INFO(" RC_BUF_THRESH%d = 0x%08x\n", i,
|
|
rc_buf_thresh_dword[i / 4]);
|
|
}
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_RC_BUF_THRESH_0, rc_buf_thresh_dword[0]);
|
|
I915_WRITE(DSCA_RC_BUF_THRESH_0_UDW, rc_buf_thresh_dword[1]);
|
|
I915_WRITE(DSCA_RC_BUF_THRESH_1, rc_buf_thresh_dword[2]);
|
|
I915_WRITE(DSCA_RC_BUF_THRESH_1_UDW, rc_buf_thresh_dword[3]);
|
|
if (crtc_state->dsc_params.dsc_split) {
|
|
I915_WRITE(DSCC_RC_BUF_THRESH_0,
|
|
rc_buf_thresh_dword[0]);
|
|
I915_WRITE(DSCC_RC_BUF_THRESH_0_UDW,
|
|
rc_buf_thresh_dword[1]);
|
|
I915_WRITE(DSCC_RC_BUF_THRESH_1,
|
|
rc_buf_thresh_dword[2]);
|
|
I915_WRITE(DSCC_RC_BUF_THRESH_1_UDW,
|
|
rc_buf_thresh_dword[3]);
|
|
}
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_RC_BUF_THRESH_0(pipe),
|
|
rc_buf_thresh_dword[0]);
|
|
I915_WRITE(ICL_DSC0_RC_BUF_THRESH_0_UDW(pipe),
|
|
rc_buf_thresh_dword[1]);
|
|
I915_WRITE(ICL_DSC0_RC_BUF_THRESH_1(pipe),
|
|
rc_buf_thresh_dword[2]);
|
|
I915_WRITE(ICL_DSC0_RC_BUF_THRESH_1_UDW(pipe),
|
|
rc_buf_thresh_dword[3]);
|
|
if (crtc_state->dsc_params.dsc_split) {
|
|
I915_WRITE(ICL_DSC1_RC_BUF_THRESH_0(pipe),
|
|
rc_buf_thresh_dword[0]);
|
|
I915_WRITE(ICL_DSC1_RC_BUF_THRESH_0_UDW(pipe),
|
|
rc_buf_thresh_dword[1]);
|
|
I915_WRITE(ICL_DSC1_RC_BUF_THRESH_1(pipe),
|
|
rc_buf_thresh_dword[2]);
|
|
I915_WRITE(ICL_DSC1_RC_BUF_THRESH_1_UDW(pipe),
|
|
rc_buf_thresh_dword[3]);
|
|
}
|
|
}
|
|
|
|
/* Populate the RC_RANGE_PARAMETERS registers */
|
|
memset(rc_range_params_dword, 0, sizeof(rc_range_params_dword));
|
|
for (i = 0; i < DSC_NUM_BUF_RANGES; i++) {
|
|
rc_range_params_dword[i / 2] |=
|
|
(u32)(((vdsc_cfg->rc_range_params[i].range_bpg_offset <<
|
|
RC_BPG_OFFSET_SHIFT) |
|
|
(vdsc_cfg->rc_range_params[i].range_max_qp <<
|
|
RC_MAX_QP_SHIFT) |
|
|
(vdsc_cfg->rc_range_params[i].range_min_qp <<
|
|
RC_MIN_QP_SHIFT)) << 16 * (i % 2));
|
|
DRM_INFO(" RC_RANGE_PARAM_%d = 0x%08x\n", i,
|
|
rc_range_params_dword[i / 2]);
|
|
}
|
|
if (cpu_transcoder == TRANSCODER_EDP) {
|
|
I915_WRITE(DSCA_RC_RANGE_PARAMETERS_0,
|
|
rc_range_params_dword[0]);
|
|
I915_WRITE(DSCA_RC_RANGE_PARAMETERS_0_UDW,
|
|
rc_range_params_dword[1]);
|
|
I915_WRITE(DSCA_RC_RANGE_PARAMETERS_1,
|
|
rc_range_params_dword[2]);
|
|
I915_WRITE(DSCA_RC_RANGE_PARAMETERS_1_UDW,
|
|
rc_range_params_dword[3]);
|
|
I915_WRITE(DSCA_RC_RANGE_PARAMETERS_2,
|
|
rc_range_params_dword[4]);
|
|
I915_WRITE(DSCA_RC_RANGE_PARAMETERS_2_UDW,
|
|
rc_range_params_dword[5]);
|
|
I915_WRITE(DSCA_RC_RANGE_PARAMETERS_3,
|
|
rc_range_params_dword[6]);
|
|
I915_WRITE(DSCA_RC_RANGE_PARAMETERS_3_UDW,
|
|
rc_range_params_dword[7]);
|
|
if (crtc_state->dsc_params.dsc_split) {
|
|
I915_WRITE(DSCC_RC_RANGE_PARAMETERS_0,
|
|
rc_range_params_dword[0]);
|
|
I915_WRITE(DSCC_RC_RANGE_PARAMETERS_0_UDW,
|
|
rc_range_params_dword[1]);
|
|
I915_WRITE(DSCC_RC_RANGE_PARAMETERS_1,
|
|
rc_range_params_dword[2]);
|
|
I915_WRITE(DSCC_RC_RANGE_PARAMETERS_1_UDW,
|
|
rc_range_params_dword[3]);
|
|
I915_WRITE(DSCC_RC_RANGE_PARAMETERS_2,
|
|
rc_range_params_dword[4]);
|
|
I915_WRITE(DSCC_RC_RANGE_PARAMETERS_2_UDW,
|
|
rc_range_params_dword[5]);
|
|
I915_WRITE(DSCC_RC_RANGE_PARAMETERS_3,
|
|
rc_range_params_dword[6]);
|
|
I915_WRITE(DSCC_RC_RANGE_PARAMETERS_3_UDW,
|
|
rc_range_params_dword[7]);
|
|
}
|
|
} else {
|
|
I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_0(pipe),
|
|
rc_range_params_dword[0]);
|
|
I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_0_UDW(pipe),
|
|
rc_range_params_dword[1]);
|
|
I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_1(pipe),
|
|
rc_range_params_dword[2]);
|
|
I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_1_UDW(pipe),
|
|
rc_range_params_dword[3]);
|
|
I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_2(pipe),
|
|
rc_range_params_dword[4]);
|
|
I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_2_UDW(pipe),
|
|
rc_range_params_dword[5]);
|
|
I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_3(pipe),
|
|
rc_range_params_dword[6]);
|
|
I915_WRITE(ICL_DSC0_RC_RANGE_PARAMETERS_3_UDW(pipe),
|
|
rc_range_params_dword[7]);
|
|
if (crtc_state->dsc_params.dsc_split) {
|
|
I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_0(pipe),
|
|
rc_range_params_dword[0]);
|
|
I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_0_UDW(pipe),
|
|
rc_range_params_dword[1]);
|
|
I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_1(pipe),
|
|
rc_range_params_dword[2]);
|
|
I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_1_UDW(pipe),
|
|
rc_range_params_dword[3]);
|
|
I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_2(pipe),
|
|
rc_range_params_dword[4]);
|
|
I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_2_UDW(pipe),
|
|
rc_range_params_dword[5]);
|
|
I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_3(pipe),
|
|
rc_range_params_dword[6]);
|
|
I915_WRITE(ICL_DSC1_RC_RANGE_PARAMETERS_3_UDW(pipe),
|
|
rc_range_params_dword[7]);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void intel_dp_write_dsc_pps_sdp(struct intel_encoder *encoder,
|
|
const struct intel_crtc_state *crtc_state)
|
|
{
|
|
struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
|
|
struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
|
|
const struct drm_dsc_config *vdsc_cfg = &crtc_state->dp_dsc_cfg;
|
|
struct drm_dsc_pps_infoframe dp_dsc_pps_sdp;
|
|
|
|
/* Prepare DP SDP PPS header as per DP 1.4 spec, Table 2-123 */
|
|
drm_dsc_dp_pps_header_init(&dp_dsc_pps_sdp);
|
|
|
|
/* Fill the PPS payload bytes as per DSC spec 1.2 Table 4-1 */
|
|
drm_dsc_pps_infoframe_pack(&dp_dsc_pps_sdp, vdsc_cfg);
|
|
|
|
intel_dig_port->write_infoframe(encoder, crtc_state,
|
|
DP_SDP_PPS, &dp_dsc_pps_sdp,
|
|
sizeof(dp_dsc_pps_sdp));
|
|
}
|
|
|
|
void intel_dsc_enable(struct intel_encoder *encoder,
|
|
const struct intel_crtc_state *crtc_state)
|
|
{
|
|
struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
|
|
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
|
|
enum pipe pipe = crtc->pipe;
|
|
i915_reg_t dss_ctl1_reg, dss_ctl2_reg;
|
|
u32 dss_ctl1_val = 0;
|
|
u32 dss_ctl2_val = 0;
|
|
|
|
if (!crtc_state->dsc_params.compression_enable)
|
|
return;
|
|
|
|
/* Enable Power wells for VDSC/joining */
|
|
intel_display_power_get(dev_priv,
|
|
intel_dsc_power_domain(crtc_state));
|
|
|
|
intel_configure_pps_for_dsc_encoder(encoder, crtc_state);
|
|
|
|
intel_dp_write_dsc_pps_sdp(encoder, crtc_state);
|
|
|
|
if (crtc_state->cpu_transcoder == TRANSCODER_EDP) {
|
|
dss_ctl1_reg = DSS_CTL1;
|
|
dss_ctl2_reg = DSS_CTL2;
|
|
} else {
|
|
dss_ctl1_reg = ICL_PIPE_DSS_CTL1(pipe);
|
|
dss_ctl2_reg = ICL_PIPE_DSS_CTL2(pipe);
|
|
}
|
|
dss_ctl2_val |= LEFT_BRANCH_VDSC_ENABLE;
|
|
if (crtc_state->dsc_params.dsc_split) {
|
|
dss_ctl2_val |= RIGHT_BRANCH_VDSC_ENABLE;
|
|
dss_ctl1_val |= JOINER_ENABLE;
|
|
}
|
|
I915_WRITE(dss_ctl1_reg, dss_ctl1_val);
|
|
I915_WRITE(dss_ctl2_reg, dss_ctl2_val);
|
|
}
|
|
|
|
void intel_dsc_disable(const struct intel_crtc_state *old_crtc_state)
|
|
{
|
|
struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc);
|
|
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
|
|
enum pipe pipe = crtc->pipe;
|
|
i915_reg_t dss_ctl1_reg, dss_ctl2_reg;
|
|
u32 dss_ctl1_val = 0, dss_ctl2_val = 0;
|
|
|
|
if (!old_crtc_state->dsc_params.compression_enable)
|
|
return;
|
|
|
|
if (old_crtc_state->cpu_transcoder == TRANSCODER_EDP) {
|
|
dss_ctl1_reg = DSS_CTL1;
|
|
dss_ctl2_reg = DSS_CTL2;
|
|
} else {
|
|
dss_ctl1_reg = ICL_PIPE_DSS_CTL1(pipe);
|
|
dss_ctl2_reg = ICL_PIPE_DSS_CTL2(pipe);
|
|
}
|
|
dss_ctl1_val = I915_READ(dss_ctl1_reg);
|
|
if (dss_ctl1_val & JOINER_ENABLE)
|
|
dss_ctl1_val &= ~JOINER_ENABLE;
|
|
I915_WRITE(dss_ctl1_reg, dss_ctl1_val);
|
|
|
|
dss_ctl2_val = I915_READ(dss_ctl2_reg);
|
|
if (dss_ctl2_val & LEFT_BRANCH_VDSC_ENABLE ||
|
|
dss_ctl2_val & RIGHT_BRANCH_VDSC_ENABLE)
|
|
dss_ctl2_val &= ~(LEFT_BRANCH_VDSC_ENABLE |
|
|
RIGHT_BRANCH_VDSC_ENABLE);
|
|
I915_WRITE(dss_ctl2_reg, dss_ctl2_val);
|
|
|
|
/* Disable Power wells for VDSC/joining */
|
|
intel_display_power_put(dev_priv,
|
|
intel_dsc_power_domain(old_crtc_state));
|
|
}
|