diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_vdsc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vdsc.c | 1218 |
1 files changed, 1218 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c new file mode 100644 index 000000000..269f97923 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c @@ -0,0 +1,1218 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright © 2018 Intel Corporation + * + * Author: Gaurav K Singh <gaurav.k.singh@intel.com> + * Manasi Navare <manasi.d.navare@intel.com> + */ +#include <linux/limits.h> + +#include <drm/display/drm_dsc_helper.h> + +#include "i915_drv.h" +#include "intel_crtc.h" +#include "intel_de.h" +#include "intel_display_types.h" +#include "intel_dsi.h" +#include "intel_qp_tables.h" +#include "intel_vdsc.h" + +enum ROW_INDEX_BPP { + ROW_INDEX_6BPP = 0, + ROW_INDEX_8BPP, + ROW_INDEX_10BPP, + ROW_INDEX_12BPP, + ROW_INDEX_15BPP, + MAX_ROW_INDEX +}; + +enum COLUMN_INDEX_BPC { + COLUMN_INDEX_8BPC = 0, + COLUMN_INDEX_10BPC, + COLUMN_INDEX_12BPC, + COLUMN_INDEX_14BPC, + COLUMN_INDEX_16BPC, + MAX_COLUMN_INDEX +}; + +/* From DSC_v1.11 spec, rc_parameter_Set syntax element typically constant */ +static const u16 rc_buf_thresh[] = { + 896, 1792, 2688, 3584, 4480, 5376, 6272, 6720, 7168, 7616, + 7744, 7872, 8000, 8064 +}; + +struct rc_parameters { + u16 initial_xmit_delay; + u8 first_line_bpg_offset; + u16 initial_offset; + u8 flatness_min_qp; + u8 flatness_max_qp; + u8 rc_quant_incr_limit0; + u8 rc_quant_incr_limit1; + struct drm_dsc_rc_range_parameters rc_range_params[DSC_NUM_BUF_RANGES]; +}; + +/* + * Selected Rate Control Related Parameter Recommended Values + * from DSC_v1.11 spec & C Model release: DSC_model_20161212 + */ +static const struct rc_parameters rc_parameters[][MAX_COLUMN_INDEX] = { +{ + /* 6BPP/8BPC */ + { 768, 15, 6144, 3, 13, 11, 11, { + { 0, 4, 0 }, { 1, 6, -2 }, { 3, 8, -2 }, { 4, 8, -4 }, + { 5, 9, -6 }, { 5, 9, -6 }, { 6, 9, -6 }, { 6, 10, -8 }, + { 7, 11, -8 }, { 8, 12, -10 }, { 9, 12, -10 }, { 10, 12, -12 }, + { 10, 12, -12 }, { 11, 12, -12 }, { 13, 14, -12 } + } + }, + /* 6BPP/10BPC */ + { 768, 15, 6144, 7, 17, 15, 15, { + { 0, 8, 0 }, { 3, 10, -2 }, { 7, 12, -2 }, { 8, 12, -4 }, + { 9, 13, -6 }, { 9, 13, -6 }, { 10, 13, -6 }, { 10, 14, -8 }, + { 11, 15, -8 }, { 12, 16, -10 }, { 13, 16, -10 }, + { 14, 16, -12 }, { 14, 16, -12 }, { 15, 16, -12 }, + { 17, 18, -12 } + } + }, + /* 6BPP/12BPC */ + { 768, 15, 6144, 11, 21, 19, 19, { + { 0, 12, 0 }, { 5, 14, -2 }, { 11, 16, -2 }, { 12, 16, -4 }, + { 13, 17, -6 }, { 13, 17, -6 }, { 14, 17, -6 }, { 14, 18, -8 }, + { 15, 19, -8 }, { 16, 20, -10 }, { 17, 20, -10 }, + { 18, 20, -12 }, { 18, 20, -12 }, { 19, 20, -12 }, + { 21, 22, -12 } + } + }, + /* 6BPP/14BPC */ + { 768, 15, 6144, 15, 25, 23, 27, { + { 0, 16, 0 }, { 7, 18, -2 }, { 15, 20, -2 }, { 16, 20, -4 }, + { 17, 21, -6 }, { 17, 21, -6 }, { 18, 21, -6 }, { 18, 22, -8 }, + { 19, 23, -8 }, { 20, 24, -10 }, { 21, 24, -10 }, + { 22, 24, -12 }, { 22, 24, -12 }, { 23, 24, -12 }, + { 25, 26, -12 } + } + }, + /* 6BPP/16BPC */ + { 768, 15, 6144, 19, 29, 27, 27, { + { 0, 20, 0 }, { 9, 22, -2 }, { 19, 24, -2 }, { 20, 24, -4 }, + { 21, 25, -6 }, { 21, 25, -6 }, { 22, 25, -6 }, { 22, 26, -8 }, + { 23, 27, -8 }, { 24, 28, -10 }, { 25, 28, -10 }, + { 26, 28, -12 }, { 26, 28, -12 }, { 27, 28, -12 }, + { 29, 30, -12 } + } + }, +}, +{ + /* 8BPP/8BPC */ + { 512, 12, 6144, 3, 12, 11, 11, { + { 0, 4, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, + { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, + { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, { 5, 12, -12 }, + { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 } + } + }, + /* 8BPP/10BPC */ + { 512, 12, 6144, 7, 16, 15, 15, { + { 0, 4, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 5, 10, -2 }, + { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, + { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 }, + { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 } + } + }, + /* 8BPP/12BPC */ + { 512, 12, 6144, 11, 20, 19, 19, { + { 0, 12, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 9, 14, -2 }, + { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, + { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 }, + { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 }, + { 21, 23, -12 } + } + }, + /* 8BPP/14BPC */ + { 512, 12, 6144, 15, 24, 23, 23, { + { 0, 12, 0 }, { 5, 13, 0 }, { 11, 15, 0 }, { 12, 17, -2 }, + { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, + { 15, 21, -8 }, { 15, 22, -10 }, { 17, 22, -10 }, + { 17, 23, -12 }, { 17, 23, -12 }, { 21, 24, -12 }, + { 24, 25, -12 } + } + }, + /* 8BPP/16BPC */ + { 512, 12, 6144, 19, 28, 27, 27, { + { 0, 12, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 15, 20, -2 }, + { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, + { 19, 25, -8 }, { 19, 26, -10 }, { 21, 26, -10 }, + { 21, 27, -12 }, { 21, 27, -12 }, { 25, 28, -12 }, + { 28, 29, -12 } + } + }, +}, +{ + /* 10BPP/8BPC */ + { 410, 15, 5632, 3, 12, 11, 11, { + { 0, 3, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 2, 6, -2 }, + { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, + { 3, 9, -8 }, { 3, 9, -10 }, { 5, 10, -10 }, { 5, 10, -10 }, + { 5, 11, -12 }, { 7, 11, -12 }, { 11, 12, -12 } + } + }, + /* 10BPP/10BPC */ + { 410, 15, 5632, 7, 16, 15, 15, { + { 0, 7, 2 }, { 4, 8, 0 }, { 5, 9, 0 }, { 6, 10, -2 }, + { 7, 11, -4 }, { 7, 11, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, + { 7, 13, -8 }, { 7, 13, -10 }, { 9, 14, -10 }, { 9, 14, -10 }, + { 9, 15, -12 }, { 11, 15, -12 }, { 15, 16, -12 } + } + }, + /* 10BPP/12BPC */ + { 410, 15, 5632, 11, 20, 19, 19, { + { 0, 11, 2 }, { 4, 12, 0 }, { 9, 13, 0 }, { 10, 14, -2 }, + { 11, 15, -4 }, { 11, 15, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, + { 11, 17, -8 }, { 11, 17, -10 }, { 13, 18, -10 }, + { 13, 18, -10 }, { 13, 19, -12 }, { 15, 19, -12 }, + { 19, 20, -12 } + } + }, + /* 10BPP/14BPC */ + { 410, 15, 5632, 15, 24, 23, 23, { + { 0, 11, 2 }, { 5, 13, 0 }, { 11, 15, 0 }, { 13, 18, -2 }, + { 15, 19, -4 }, { 15, 19, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, + { 15, 21, -8 }, { 15, 21, -10 }, { 17, 22, -10 }, + { 17, 22, -10 }, { 17, 23, -12 }, { 19, 23, -12 }, + { 23, 24, -12 } + } + }, + /* 10BPP/16BPC */ + { 410, 15, 5632, 19, 28, 27, 27, { + { 0, 11, 2 }, { 6, 14, 0 }, { 13, 17, 0 }, { 16, 20, -2 }, + { 19, 23, -4 }, { 19, 23, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, + { 19, 25, -8 }, { 19, 25, -10 }, { 21, 26, -10 }, + { 21, 26, -10 }, { 21, 27, -12 }, { 23, 27, -12 }, + { 27, 28, -12 } + } + }, +}, +{ + /* 12BPP/8BPC */ + { 341, 15, 2048, 3, 12, 11, 11, { + { 0, 2, 2 }, { 0, 4, 0 }, { 1, 5, 0 }, { 1, 6, -2 }, + { 3, 7, -4 }, { 3, 7, -6 }, { 3, 7, -8 }, { 3, 8, -8 }, + { 3, 9, -8 }, { 3, 10, -10 }, { 5, 11, -10 }, + { 5, 12, -12 }, { 5, 13, -12 }, { 7, 13, -12 }, { 13, 15, -12 } + } + }, + /* 12BPP/10BPC */ + { 341, 15, 2048, 7, 16, 15, 15, { + { 0, 2, 2 }, { 2, 5, 0 }, { 3, 7, 0 }, { 4, 8, -2 }, + { 6, 9, -4 }, { 7, 10, -6 }, { 7, 11, -8 }, { 7, 12, -8 }, + { 7, 13, -8 }, { 7, 14, -10 }, { 9, 15, -10 }, { 9, 16, -12 }, + { 9, 17, -12 }, { 11, 17, -12 }, { 17, 19, -12 } + } + }, + /* 12BPP/12BPC */ + { 341, 15, 2048, 11, 20, 19, 19, { + { 0, 6, 2 }, { 4, 9, 0 }, { 7, 11, 0 }, { 8, 12, -2 }, + { 10, 13, -4 }, { 11, 14, -6 }, { 11, 15, -8 }, { 11, 16, -8 }, + { 11, 17, -8 }, { 11, 18, -10 }, { 13, 19, -10 }, + { 13, 20, -12 }, { 13, 21, -12 }, { 15, 21, -12 }, + { 21, 23, -12 } + } + }, + /* 12BPP/14BPC */ + { 341, 15, 2048, 15, 24, 23, 23, { + { 0, 6, 2 }, { 7, 10, 0 }, { 9, 13, 0 }, { 11, 16, -2 }, + { 14, 17, -4 }, { 15, 18, -6 }, { 15, 19, -8 }, { 15, 20, -8 }, + { 15, 20, -8 }, { 15, 21, -10 }, { 17, 21, -10 }, + { 17, 21, -12 }, { 17, 21, -12 }, { 19, 22, -12 }, + { 22, 23, -12 } + } + }, + /* 12BPP/16BPC */ + { 341, 15, 2048, 19, 28, 27, 27, { + { 0, 6, 2 }, { 6, 11, 0 }, { 11, 15, 0 }, { 14, 18, -2 }, + { 18, 21, -4 }, { 19, 22, -6 }, { 19, 23, -8 }, { 19, 24, -8 }, + { 19, 24, -8 }, { 19, 25, -10 }, { 21, 25, -10 }, + { 21, 25, -12 }, { 21, 25, -12 }, { 23, 26, -12 }, + { 26, 27, -12 } + } + }, +}, +{ + /* 15BPP/8BPC */ + { 273, 15, 2048, 3, 12, 11, 11, { + { 0, 0, 10 }, { 0, 1, 8 }, { 0, 1, 6 }, { 0, 2, 4 }, + { 1, 2, 2 }, { 1, 3, 0 }, { 1, 3, -2 }, { 2, 4, -4 }, + { 2, 5, -6 }, { 3, 5, -8 }, { 4, 6, -10 }, { 4, 7, -10 }, + { 5, 7, -12 }, { 7, 8, -12 }, { 8, 9, -12 } + } + }, + /* 15BPP/10BPC */ + { 273, 15, 2048, 7, 16, 15, 15, { + { 0, 2, 10 }, { 2, 5, 8 }, { 3, 5, 6 }, { 4, 6, 4 }, + { 5, 6, 2 }, { 5, 7, 0 }, { 5, 7, -2 }, { 6, 8, -4 }, + { 6, 9, -6 }, { 7, 9, -8 }, { 8, 10, -10 }, { 8, 11, -10 }, + { 9, 11, -12 }, { 11, 12, -12 }, { 12, 13, -12 } + } + }, + /* 15BPP/12BPC */ + { 273, 15, 2048, 11, 20, 19, 19, { + { 0, 4, 10 }, { 2, 7, 8 }, { 4, 9, 6 }, { 6, 11, 4 }, + { 9, 11, 2 }, { 9, 11, 0 }, { 9, 12, -2 }, { 10, 12, -4 }, + { 11, 13, -6 }, { 11, 13, -8 }, { 12, 14, -10 }, + { 13, 15, -10 }, { 13, 15, -12 }, { 15, 16, -12 }, + { 16, 17, -12 } + } + }, + /* 15BPP/14BPC */ + { 273, 15, 2048, 15, 24, 23, 23, { + { 0, 4, 10 }, { 3, 8, 8 }, { 6, 11, 6 }, { 9, 14, 4 }, + { 13, 15, 2 }, { 13, 15, 0 }, { 13, 16, -2 }, { 14, 16, -4 }, + { 15, 17, -6 }, { 15, 17, -8 }, { 16, 18, -10 }, + { 17, 19, -10 }, { 17, 19, -12 }, { 19, 20, -12 }, + { 20, 21, -12 } + } + }, + /* 15BPP/16BPC */ + { 273, 15, 2048, 19, 28, 27, 27, { + { 0, 4, 10 }, { 4, 9, 8 }, { 8, 13, 6 }, { 12, 17, 4 }, + { 17, 19, 2 }, { 17, 20, 0 }, { 17, 20, -2 }, { 18, 20, -4 }, + { 19, 21, -6 }, { 19, 21, -8 }, { 20, 22, -10 }, + { 21, 23, -10 }, { 21, 23, -12 }, { 23, 24, -12 }, + { 24, 25, -12 } + } + } +} + +}; + +static int get_row_index_for_rc_params(u16 compressed_bpp) +{ + switch (compressed_bpp) { + case 6: + return ROW_INDEX_6BPP; + case 8: + return ROW_INDEX_8BPP; + case 10: + return ROW_INDEX_10BPP; + case 12: + return ROW_INDEX_12BPP; + case 15: + return ROW_INDEX_15BPP; + default: + return -EINVAL; + } +} + +static int get_column_index_for_rc_params(u8 bits_per_component) +{ + switch (bits_per_component) { + case 8: + return COLUMN_INDEX_8BPC; + case 10: + return COLUMN_INDEX_10BPC; + case 12: + return COLUMN_INDEX_12BPC; + case 14: + return COLUMN_INDEX_14BPC; + case 16: + return COLUMN_INDEX_16BPC; + default: + return -EINVAL; + } +} + +static const struct rc_parameters *get_rc_params(u16 compressed_bpp, + u8 bits_per_component) +{ + int row_index, column_index; + + row_index = get_row_index_for_rc_params(compressed_bpp); + if (row_index < 0) + return NULL; + + column_index = get_column_index_for_rc_params(bits_per_component); + if (column_index < 0) + return NULL; + + return &rc_parameters[row_index][column_index]; +} + +bool intel_dsc_source_support(const struct intel_crtc_state *crtc_state) +{ + const struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + + if (!RUNTIME_INFO(i915)->has_dsc) + return false; + + if (DISPLAY_VER(i915) >= 12) + return true; + + if (DISPLAY_VER(i915) >= 11 && cpu_transcoder != TRANSCODER_A) + return true; + + return false; +} + +static bool is_pipe_dsc(struct intel_crtc *crtc, enum transcoder cpu_transcoder) +{ + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + + if (DISPLAY_VER(i915) >= 12) + return true; + + if (cpu_transcoder == TRANSCODER_EDP || + cpu_transcoder == TRANSCODER_DSI_0 || + cpu_transcoder == TRANSCODER_DSI_1) + return false; + + /* There's no pipe A DSC engine on ICL */ + drm_WARN_ON(&i915->drm, crtc->pipe == PIPE_A); + + return true; +} + +static void +calculate_rc_params(struct rc_parameters *rc, + struct drm_dsc_config *vdsc_cfg) +{ + int bpc = vdsc_cfg->bits_per_component; + int bpp = vdsc_cfg->bits_per_pixel >> 4; + static const s8 ofs_und6[] = { + 0, -2, -2, -4, -6, -6, -8, -8, -8, -10, -10, -12, -12, -12, -12 + }; + static const s8 ofs_und8[] = { + 2, 0, 0, -2, -4, -6, -8, -8, -8, -10, -10, -10, -12, -12, -12 + }; + static const s8 ofs_und12[] = { + 2, 0, 0, -2, -4, -6, -8, -8, -8, -10, -10, -10, -12, -12, -12 + }; + static const s8 ofs_und15[] = { + 10, 8, 6, 4, 2, 0, -2, -4, -6, -8, -10, -10, -12, -12, -12 + }; + int qp_bpc_modifier = (bpc - 8) * 2; + u32 res, buf_i, bpp_i; + + if (vdsc_cfg->slice_height >= 8) + rc->first_line_bpg_offset = + 12 + DIV_ROUND_UP((9 * min(34, vdsc_cfg->slice_height - 8)), 100); + else + rc->first_line_bpg_offset = 2 * (vdsc_cfg->slice_height - 1); + + /* Our hw supports only 444 modes as of today */ + if (bpp >= 12) + rc->initial_offset = 2048; + else if (bpp >= 10) + rc->initial_offset = 5632 - DIV_ROUND_UP(((bpp - 10) * 3584), 2); + else if (bpp >= 8) + rc->initial_offset = 6144 - DIV_ROUND_UP(((bpp - 8) * 512), 2); + else + rc->initial_offset = 6144; + + /* initial_xmit_delay = rc_model_size/2/compression_bpp */ + rc->initial_xmit_delay = DIV_ROUND_UP(DSC_RC_MODEL_SIZE_CONST, 2 * bpp); + + rc->flatness_min_qp = 3 + qp_bpc_modifier; + rc->flatness_max_qp = 12 + qp_bpc_modifier; + + rc->rc_quant_incr_limit0 = 11 + qp_bpc_modifier; + rc->rc_quant_incr_limit1 = 11 + qp_bpc_modifier; + + bpp_i = (2 * (bpp - 6)); + for (buf_i = 0; buf_i < DSC_NUM_BUF_RANGES; buf_i++) { + /* Read range_minqp and range_max_qp from qp tables */ + rc->rc_range_params[buf_i].range_min_qp = + intel_lookup_range_min_qp(bpc, buf_i, bpp_i); + rc->rc_range_params[buf_i].range_max_qp = + intel_lookup_range_max_qp(bpc, buf_i, bpp_i); + + /* Calculate range_bgp_offset */ + if (bpp <= 6) { + rc->rc_range_params[buf_i].range_bpg_offset = ofs_und6[buf_i]; + } else if (bpp <= 8) { + res = DIV_ROUND_UP(((bpp - 6) * (ofs_und8[buf_i] - ofs_und6[buf_i])), 2); + rc->rc_range_params[buf_i].range_bpg_offset = + ofs_und6[buf_i] + res; + } else if (bpp <= 12) { + rc->rc_range_params[buf_i].range_bpg_offset = + ofs_und8[buf_i]; + } else if (bpp <= 15) { + res = DIV_ROUND_UP(((bpp - 12) * (ofs_und15[buf_i] - ofs_und12[buf_i])), 3); + rc->rc_range_params[buf_i].range_bpg_offset = + ofs_und12[buf_i] + res; + } else { + rc->rc_range_params[buf_i].range_bpg_offset = + ofs_und15[buf_i]; + } + } +} + +int intel_dsc_compute_params(struct intel_crtc_state *pipe_config) +{ + struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct drm_dsc_config *vdsc_cfg = &pipe_config->dsc.config; + u16 compressed_bpp = pipe_config->dsc.compressed_bpp; + const struct rc_parameters *rc_params; + struct rc_parameters *rc = NULL; + u8 i = 0; + + vdsc_cfg->pic_width = pipe_config->hw.adjusted_mode.crtc_hdisplay; + vdsc_cfg->slice_width = DIV_ROUND_UP(vdsc_cfg->pic_width, + pipe_config->dsc.slice_count); + + /* Gen 11 does not support YCbCr */ + vdsc_cfg->simple_422 = false; + /* Gen 11 does not support VBR */ + vdsc_cfg->vbr_enable = false; + + /* 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; + } + + /* + * From XE_LPD onwards we supports compression bpps in steps of 1 + * upto uncompressed bpp-1, hence add calculations for all the rc + * parameters + */ + if (DISPLAY_VER(dev_priv) >= 13) { + rc = kmalloc(sizeof(*rc), GFP_KERNEL); + if (!rc) + return -ENOMEM; + + calculate_rc_params(rc, vdsc_cfg); + rc_params = rc; + } else { + rc_params = get_rc_params(compressed_bpp, + vdsc_cfg->bits_per_component); + if (!rc_params) + return -EINVAL; + } + + vdsc_cfg->first_line_bpg_offset = rc_params->first_line_bpg_offset; + vdsc_cfg->initial_xmit_delay = rc_params->initial_xmit_delay; + vdsc_cfg->initial_offset = rc_params->initial_offset; + vdsc_cfg->flatness_min_qp = rc_params->flatness_min_qp; + vdsc_cfg->flatness_max_qp = rc_params->flatness_max_qp; + vdsc_cfg->rc_quant_incr_limit0 = rc_params->rc_quant_incr_limit0; + vdsc_cfg->rc_quant_incr_limit1 = rc_params->rc_quant_incr_limit1; + + for (i = 0; i < DSC_NUM_BUF_RANGES; i++) { + vdsc_cfg->rc_range_params[i].range_min_qp = + rc_params->rc_range_params[i].range_min_qp; + vdsc_cfg->rc_range_params[i].range_max_qp = + rc_params->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->rc_range_params[i].range_bpg_offset & + DSC_RANGE_BPG_OFFSET_MASK; + } + + /* + * BitsPerComponent value determines mux_word_size: + * When BitsPerComponent is less than or 10bpc, muxWordSize will be equal to + * 48 bits otherwise 64 + */ + if (vdsc_cfg->bits_per_component <= 10) + vdsc_cfg->mux_word_size = DSC_MUX_WORD_SIZE_8_10_BPC; + else + vdsc_cfg->mux_word_size = DSC_MUX_WORD_SIZE_12_BPC; + + /* 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); + + kfree(rc); + + return 0; +} + +enum intel_display_power_domain +intel_dsc_power_domain(struct intel_crtc *crtc, enum transcoder cpu_transcoder) +{ + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + + /* + * VDSC/joining uses a separate power well, PW2, and requires + * POWER_DOMAIN_TRANSCODER_VDSC_PW2 power domain in two cases: + * + * - ICL eDP/DSI transcoder + * - Display version 12 (except RKL) pipe A + * + * For any other pipe, VDSC/joining uses the power well associated with + * the pipe in use. Hence another reference on the pipe power domain + * will suffice. (Except no VDSC/joining on ICL pipe A.) + */ + if (DISPLAY_VER(i915) == 12 && !IS_ROCKETLAKE(i915) && pipe == PIPE_A) + return POWER_DOMAIN_TRANSCODER_VDSC_PW2; + else if (is_pipe_dsc(crtc, cpu_transcoder)) + return POWER_DOMAIN_PIPE(pipe); + else + return POWER_DOMAIN_TRANSCODER_VDSC_PW2; +} + +static void intel_dsc_pps_configure(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + const struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config; + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + enum pipe pipe = crtc->pipe; + u32 pps_val = 0; + u32 rc_buf_thresh_dword[4]; + u32 rc_range_params_dword[8]; + u8 num_vdsc_instances = (crtc_state->dsc.dsc_split) ? 2 : 1; + int i = 0; + + if (crtc_state->bigjoiner_pipes) + num_vdsc_instances *= 2; + + /* 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->dsc_version_minor == 2) + pps_val |= DSC_ALT_ICH_SEL; + 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->simple_422) + pps_val |= DSC_422_ENABLE; + if (vdsc_cfg->vbr_enable) + pps_val |= DSC_VBR_ENABLE; + drm_dbg_kms(&dev_priv->drm, "PPS0 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_0, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_0, + pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_0(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "PPS1 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_1, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_1, + pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "PPS2 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_2, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_2, + pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_2(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "PPS3 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_3, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_3, + pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_3(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "PPS4 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_4, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_4, + pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_4(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "PPS5 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_5, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_5, + pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_5(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "PPS6 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_6, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_6, + pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_6(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "PPS7 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_7, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_7, + pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_7(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "PPS8 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_8, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_8, + pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_8(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + ICL_DSC1_PICTURE_PARAMETER_SET_8(pipe), + pps_val); + } + + /* Populate PICTURE_PARAMETER_SET_9 registers */ + pps_val = 0; + pps_val |= DSC_RC_MODEL_SIZE(vdsc_cfg->rc_model_size) | + DSC_RC_EDGE_FACTOR(DSC_RC_EDGE_FACTOR_CONST); + drm_dbg_kms(&dev_priv->drm, "PPS9 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_9, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, DSCC_PICTURE_PARAMETER_SET_9, + pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_9(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "PPS10 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_10, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + DSCC_PICTURE_PARAMETER_SET_10, pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_10(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "PPS16 = 0x%08x\n", pps_val); + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_PICTURE_PARAMETER_SET_16, + pps_val); + /* + * If 2 VDSC instances are needed, configure PPS for second + * VDSC + */ + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + DSCC_PICTURE_PARAMETER_SET_16, pps_val); + } else { + intel_de_write(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_16(pipe), + pps_val); + if (crtc_state->dsc.dsc_split) + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "RC_BUF_THRESH_%d = 0x%08x\n", i, + rc_buf_thresh_dword[i / 4]); + } + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_RC_BUF_THRESH_0, + rc_buf_thresh_dword[0]); + intel_de_write(dev_priv, DSCA_RC_BUF_THRESH_0_UDW, + rc_buf_thresh_dword[1]); + intel_de_write(dev_priv, DSCA_RC_BUF_THRESH_1, + rc_buf_thresh_dword[2]); + intel_de_write(dev_priv, DSCA_RC_BUF_THRESH_1_UDW, + rc_buf_thresh_dword[3]); + if (crtc_state->dsc.dsc_split) { + intel_de_write(dev_priv, DSCC_RC_BUF_THRESH_0, + rc_buf_thresh_dword[0]); + intel_de_write(dev_priv, DSCC_RC_BUF_THRESH_0_UDW, + rc_buf_thresh_dword[1]); + intel_de_write(dev_priv, DSCC_RC_BUF_THRESH_1, + rc_buf_thresh_dword[2]); + intel_de_write(dev_priv, DSCC_RC_BUF_THRESH_1_UDW, + rc_buf_thresh_dword[3]); + } + } else { + intel_de_write(dev_priv, ICL_DSC0_RC_BUF_THRESH_0(pipe), + rc_buf_thresh_dword[0]); + intel_de_write(dev_priv, ICL_DSC0_RC_BUF_THRESH_0_UDW(pipe), + rc_buf_thresh_dword[1]); + intel_de_write(dev_priv, ICL_DSC0_RC_BUF_THRESH_1(pipe), + rc_buf_thresh_dword[2]); + intel_de_write(dev_priv, ICL_DSC0_RC_BUF_THRESH_1_UDW(pipe), + rc_buf_thresh_dword[3]); + if (crtc_state->dsc.dsc_split) { + intel_de_write(dev_priv, + ICL_DSC1_RC_BUF_THRESH_0(pipe), + rc_buf_thresh_dword[0]); + intel_de_write(dev_priv, + ICL_DSC1_RC_BUF_THRESH_0_UDW(pipe), + rc_buf_thresh_dword[1]); + intel_de_write(dev_priv, + ICL_DSC1_RC_BUF_THRESH_1(pipe), + rc_buf_thresh_dword[2]); + intel_de_write(dev_priv, + 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_dbg_kms(&dev_priv->drm, "RC_RANGE_PARAM_%d = 0x%08x\n", i, + rc_range_params_dword[i / 2]); + } + if (!is_pipe_dsc(crtc, cpu_transcoder)) { + intel_de_write(dev_priv, DSCA_RC_RANGE_PARAMETERS_0, + rc_range_params_dword[0]); + intel_de_write(dev_priv, DSCA_RC_RANGE_PARAMETERS_0_UDW, + rc_range_params_dword[1]); + intel_de_write(dev_priv, DSCA_RC_RANGE_PARAMETERS_1, + rc_range_params_dword[2]); + intel_de_write(dev_priv, DSCA_RC_RANGE_PARAMETERS_1_UDW, + rc_range_params_dword[3]); + intel_de_write(dev_priv, DSCA_RC_RANGE_PARAMETERS_2, + rc_range_params_dword[4]); + intel_de_write(dev_priv, DSCA_RC_RANGE_PARAMETERS_2_UDW, + rc_range_params_dword[5]); + intel_de_write(dev_priv, DSCA_RC_RANGE_PARAMETERS_3, + rc_range_params_dword[6]); + intel_de_write(dev_priv, DSCA_RC_RANGE_PARAMETERS_3_UDW, + rc_range_params_dword[7]); + if (crtc_state->dsc.dsc_split) { + intel_de_write(dev_priv, DSCC_RC_RANGE_PARAMETERS_0, + rc_range_params_dword[0]); + intel_de_write(dev_priv, + DSCC_RC_RANGE_PARAMETERS_0_UDW, + rc_range_params_dword[1]); + intel_de_write(dev_priv, DSCC_RC_RANGE_PARAMETERS_1, + rc_range_params_dword[2]); + intel_de_write(dev_priv, + DSCC_RC_RANGE_PARAMETERS_1_UDW, + rc_range_params_dword[3]); + intel_de_write(dev_priv, DSCC_RC_RANGE_PARAMETERS_2, + rc_range_params_dword[4]); + intel_de_write(dev_priv, + DSCC_RC_RANGE_PARAMETERS_2_UDW, + rc_range_params_dword[5]); + intel_de_write(dev_priv, DSCC_RC_RANGE_PARAMETERS_3, + rc_range_params_dword[6]); + intel_de_write(dev_priv, + DSCC_RC_RANGE_PARAMETERS_3_UDW, + rc_range_params_dword[7]); + } + } else { + intel_de_write(dev_priv, ICL_DSC0_RC_RANGE_PARAMETERS_0(pipe), + rc_range_params_dword[0]); + intel_de_write(dev_priv, + ICL_DSC0_RC_RANGE_PARAMETERS_0_UDW(pipe), + rc_range_params_dword[1]); + intel_de_write(dev_priv, ICL_DSC0_RC_RANGE_PARAMETERS_1(pipe), + rc_range_params_dword[2]); + intel_de_write(dev_priv, + ICL_DSC0_RC_RANGE_PARAMETERS_1_UDW(pipe), + rc_range_params_dword[3]); + intel_de_write(dev_priv, ICL_DSC0_RC_RANGE_PARAMETERS_2(pipe), + rc_range_params_dword[4]); + intel_de_write(dev_priv, + ICL_DSC0_RC_RANGE_PARAMETERS_2_UDW(pipe), + rc_range_params_dword[5]); + intel_de_write(dev_priv, ICL_DSC0_RC_RANGE_PARAMETERS_3(pipe), + rc_range_params_dword[6]); + intel_de_write(dev_priv, + ICL_DSC0_RC_RANGE_PARAMETERS_3_UDW(pipe), + rc_range_params_dword[7]); + if (crtc_state->dsc.dsc_split) { + intel_de_write(dev_priv, + ICL_DSC1_RC_RANGE_PARAMETERS_0(pipe), + rc_range_params_dword[0]); + intel_de_write(dev_priv, + ICL_DSC1_RC_RANGE_PARAMETERS_0_UDW(pipe), + rc_range_params_dword[1]); + intel_de_write(dev_priv, + ICL_DSC1_RC_RANGE_PARAMETERS_1(pipe), + rc_range_params_dword[2]); + intel_de_write(dev_priv, + ICL_DSC1_RC_RANGE_PARAMETERS_1_UDW(pipe), + rc_range_params_dword[3]); + intel_de_write(dev_priv, + ICL_DSC1_RC_RANGE_PARAMETERS_2(pipe), + rc_range_params_dword[4]); + intel_de_write(dev_priv, + ICL_DSC1_RC_RANGE_PARAMETERS_2_UDW(pipe), + rc_range_params_dword[5]); + intel_de_write(dev_priv, + ICL_DSC1_RC_RANGE_PARAMETERS_3(pipe), + rc_range_params_dword[6]); + intel_de_write(dev_priv, + ICL_DSC1_RC_RANGE_PARAMETERS_3_UDW(pipe), + rc_range_params_dword[7]); + } + } +} + +void intel_dsc_dsi_pps_write(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state) +{ + const struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config; + struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); + struct mipi_dsi_device *dsi; + struct drm_dsc_picture_parameter_set pps; + enum port port; + + if (!crtc_state->dsc.compression_enable) + return; + + drm_dsc_pps_payload_pack(&pps, vdsc_cfg); + + for_each_dsi_port(port, intel_dsi->ports) { + dsi = intel_dsi->dsi_hosts[port]->device; + + mipi_dsi_picture_parameter_set(dsi, &pps); + mipi_dsi_compression_mode(dsi, true); + } +} + +void intel_dsc_dp_pps_write(struct intel_encoder *encoder, + const struct intel_crtc_state *crtc_state) +{ + struct intel_digital_port *dig_port = enc_to_dig_port(encoder); + const struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config; + struct drm_dsc_pps_infoframe dp_dsc_pps_sdp; + + if (!crtc_state->dsc.compression_enable) + return; + + /* Prepare DP SDP PPS header as per DP 1.4 spec, Table 2-123 */ + drm_dsc_dp_pps_header_init(&dp_dsc_pps_sdp.pps_header); + + /* Fill the PPS payload bytes as per DSC spec 1.2 Table 4-1 */ + drm_dsc_pps_payload_pack(&dp_dsc_pps_sdp.pps_payload, vdsc_cfg); + + dig_port->write_infoframe(encoder, crtc_state, + DP_SDP_PPS, &dp_dsc_pps_sdp, + sizeof(dp_dsc_pps_sdp)); +} + +static i915_reg_t dss_ctl1_reg(struct intel_crtc *crtc, enum transcoder cpu_transcoder) +{ + return is_pipe_dsc(crtc, cpu_transcoder) ? + ICL_PIPE_DSS_CTL1(crtc->pipe) : DSS_CTL1; +} + +static i915_reg_t dss_ctl2_reg(struct intel_crtc *crtc, enum transcoder cpu_transcoder) +{ + return is_pipe_dsc(crtc, cpu_transcoder) ? + ICL_PIPE_DSS_CTL2(crtc->pipe) : DSS_CTL2; +} + +void intel_uncompressed_joiner_enable(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + u32 dss_ctl1_val = 0; + + if (crtc_state->bigjoiner_pipes && !crtc_state->dsc.compression_enable) { + if (intel_crtc_is_bigjoiner_slave(crtc_state)) + dss_ctl1_val |= UNCOMPRESSED_JOINER_SLAVE; + else + dss_ctl1_val |= UNCOMPRESSED_JOINER_MASTER; + + intel_de_write(dev_priv, dss_ctl1_reg(crtc, crtc_state->cpu_transcoder), dss_ctl1_val); + } +} + +void intel_dsc_enable(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + u32 dss_ctl1_val = 0; + u32 dss_ctl2_val = 0; + + if (!crtc_state->dsc.compression_enable) + return; + + intel_dsc_pps_configure(crtc_state); + + dss_ctl2_val |= LEFT_BRANCH_VDSC_ENABLE; + if (crtc_state->dsc.dsc_split) { + dss_ctl2_val |= RIGHT_BRANCH_VDSC_ENABLE; + dss_ctl1_val |= JOINER_ENABLE; + } + if (crtc_state->bigjoiner_pipes) { + dss_ctl1_val |= BIG_JOINER_ENABLE; + if (!intel_crtc_is_bigjoiner_slave(crtc_state)) + dss_ctl1_val |= MASTER_BIG_JOINER_ENABLE; + } + intel_de_write(dev_priv, dss_ctl1_reg(crtc, crtc_state->cpu_transcoder), dss_ctl1_val); + intel_de_write(dev_priv, dss_ctl2_reg(crtc, crtc_state->cpu_transcoder), 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->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + /* Disable only if either of them is enabled */ + if (old_crtc_state->dsc.compression_enable || + old_crtc_state->bigjoiner_pipes) { + intel_de_write(dev_priv, dss_ctl1_reg(crtc, old_crtc_state->cpu_transcoder), 0); + intel_de_write(dev_priv, dss_ctl2_reg(crtc, old_crtc_state->cpu_transcoder), 0); + } +} + +void intel_dsc_get_config(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct drm_dsc_config *vdsc_cfg = &crtc_state->dsc.config; + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + enum pipe pipe = crtc->pipe; + enum intel_display_power_domain power_domain; + intel_wakeref_t wakeref; + u32 dss_ctl1, dss_ctl2, val; + + if (!intel_dsc_source_support(crtc_state)) + return; + + power_domain = intel_dsc_power_domain(crtc, cpu_transcoder); + + wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain); + if (!wakeref) + return; + + dss_ctl1 = intel_de_read(dev_priv, dss_ctl1_reg(crtc, cpu_transcoder)); + dss_ctl2 = intel_de_read(dev_priv, dss_ctl2_reg(crtc, cpu_transcoder)); + + crtc_state->dsc.compression_enable = dss_ctl2 & LEFT_BRANCH_VDSC_ENABLE; + if (!crtc_state->dsc.compression_enable) + goto out; + + crtc_state->dsc.dsc_split = (dss_ctl2 & RIGHT_BRANCH_VDSC_ENABLE) && + (dss_ctl1 & JOINER_ENABLE); + + /* FIXME: add more state readout as needed */ + + /* PPS1 */ + if (!is_pipe_dsc(crtc, cpu_transcoder)) + val = intel_de_read(dev_priv, DSCA_PICTURE_PARAMETER_SET_1); + else + val = intel_de_read(dev_priv, + ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe)); + vdsc_cfg->bits_per_pixel = val; + crtc_state->dsc.compressed_bpp = vdsc_cfg->bits_per_pixel >> 4; +out: + intel_display_power_put(dev_priv, power_domain, wakeref); +} |