36 static int dsi_populate_dsc_params(struct drm_dsc_config *dsc);
163 	struct drm_dsc_config *dsc;  member
844 	struct drm_dsc_config *dsc = msm_host->dsc;  in dsi_update_dsc_timing()  local
851 	/* first calculate dsc parameters and then program  in dsi_update_dsc_timing()
855 	slice_per_intf = DIV_ROUND_UP(intf_width, dsc->slice_width);  in dsi_update_dsc_timing()
861 	if (slice_per_intf > dsc->slice_count)  in dsi_update_dsc_timing()
862 		dsc->slice_count = 1;  in dsi_update_dsc_timing()
864 	slice_per_intf = DIV_ROUND_UP(hdisplay, dsc->slice_width);  in dsi_update_dsc_timing()
865 	bytes_in_slice = DIV_ROUND_UP(dsc->slice_width * dsc->bits_per_pixel, 8);  in dsi_update_dsc_timing()
867 	dsc->slice_chunk_size = bytes_in_slice;  in dsi_update_dsc_timing()
872 	pkt_per_line = slice_per_intf / dsc->slice_count;  in dsi_update_dsc_timing()
936 	if (msm_host->dsc) {  in dsi_timing_setup()
937 		struct drm_dsc_config *dsc = msm_host->dsc;  in dsi_timing_setup()  local
939 		/* update dsc params with timing params */  in dsi_timing_setup()
940 		if (!dsc || !mode->hdisplay || !mode->vdisplay) {  in dsi_timing_setup()
946 		dsc->pic_width = mode->hdisplay;  in dsi_timing_setup()
947 		dsc->pic_height = mode->vdisplay;  in dsi_timing_setup()
948 		DBG("Mode %dx%d\n", dsc->pic_width, dsc->pic_height);  in dsi_timing_setup()
950 		/* we do the calculations for dsc parameters here so that  in dsi_timing_setup()
953 		dsi_populate_dsc_params(dsc);  in dsi_timing_setup()
965 		if (msm_host->dsc)  in dsi_timing_setup()
986 		if (msm_host->dsc)  in dsi_timing_setup()
990 		if (!msm_host->dsc)  in dsi_timing_setup()
1606 	if (dsi->dsc)  in dsi_host_attach()
1607 		msm_host->dsc = dsi->dsc;  in dsi_host_attach()
1757 static int dsi_populate_dsc_params(struct drm_dsc_config *dsc)  in dsi_populate_dsc_params()  argument
1770 	dsc->rc_model_size = 8192;  in dsi_populate_dsc_params()
1771 	dsc->first_line_bpg_offset = 12;  in dsi_populate_dsc_params()
1772 	dsc->rc_edge_factor = 6;  in dsi_populate_dsc_params()
1773 	dsc->rc_tgt_offset_high = 3;  in dsi_populate_dsc_params()
1774 	dsc->rc_tgt_offset_low = 3;  in dsi_populate_dsc_params()
1775 	dsc->simple_422 = 0;  in dsi_populate_dsc_params()
1776 	dsc->convert_rgb = 1;  in dsi_populate_dsc_params()
1777 	dsc->vbr_enable = 0;  in dsi_populate_dsc_params()
1781 		dsc->rc_buf_thresh[i] = dsi_dsc_rc_buf_thresh[i];  in dsi_populate_dsc_params()
1784 		dsc->rc_range_params[i].range_min_qp = min_qp[i];  in dsi_populate_dsc_params()
1785 		dsc->rc_range_params[i].range_max_qp = max_qp[i];  in dsi_populate_dsc_params()
1786 		dsc->rc_range_params[i].range_bpg_offset = bpg_offset[i];  in dsi_populate_dsc_params()
1789 	dsc->initial_offset = 6144; /* Not bpp 12 */  in dsi_populate_dsc_params()
1790 	if (dsc->bits_per_pixel != 8)  in dsi_populate_dsc_params()
1791 		dsc->initial_offset = 2048;	/* bpp = 12 */  in dsi_populate_dsc_params()
1794 	if (dsc->bits_per_component == 12)  in dsi_populate_dsc_params()
1797 	dsc->initial_xmit_delay = 512;  in dsi_populate_dsc_params()
1798 	dsc->initial_scale_value = 32;  in dsi_populate_dsc_params()
1799 	dsc->first_line_bpg_offset = 12;  in dsi_populate_dsc_params()
1800 	dsc->line_buf_depth = dsc->bits_per_component + 1;  in dsi_populate_dsc_params()
1803 	dsc->flatness_min_qp = 3;  in dsi_populate_dsc_params()
1804 	dsc->flatness_max_qp = 12;  in dsi_populate_dsc_params()
1805 	dsc->rc_quant_incr_limit0 = 11;  in dsi_populate_dsc_params()
1806 	dsc->rc_quant_incr_limit1 = 11;  in dsi_populate_dsc_params()
1807 	dsc->mux_word_size = DSC_MUX_WORD_SIZE_8_10_BPC;  in dsi_populate_dsc_params()
1812 	groups_per_line = DIV_ROUND_UP(dsc->slice_width, 3);  in dsi_populate_dsc_params()
1813 	dsc->slice_chunk_size = dsc->slice_width * dsc->bits_per_pixel / 8;  in dsi_populate_dsc_params()
1814 	if ((dsc->slice_width * dsc->bits_per_pixel) % 8)  in dsi_populate_dsc_params()
1815 		dsc->slice_chunk_size++;  in dsi_populate_dsc_params()
1818 	min_rate_buffer_size =  dsc->rc_model_size - dsc->initial_offset +  in dsi_populate_dsc_params()
1819 				dsc->initial_xmit_delay * dsc->bits_per_pixel +  in dsi_populate_dsc_params()
1820 				groups_per_line * dsc->first_line_bpg_offset;  in dsi_populate_dsc_params()
1822 	hrd_delay = DIV_ROUND_UP(min_rate_buffer_size, dsc->bits_per_pixel);  in dsi_populate_dsc_params()
1824 	dsc->initial_dec_delay = hrd_delay - dsc->initial_xmit_delay;  in dsi_populate_dsc_params()
1826 	dsc->initial_scale_value = 8 * dsc->rc_model_size /  in dsi_populate_dsc_params()
1827 				       (dsc->rc_model_size - dsc->initial_offset);  in dsi_populate_dsc_params()
1829 	slice_bits = 8 * dsc->slice_chunk_size * dsc->slice_height;  in dsi_populate_dsc_params()
1831 	groups_total = groups_per_line * dsc->slice_height;  in dsi_populate_dsc_params()
1833 	data = dsc->first_line_bpg_offset * 2048;  in dsi_populate_dsc_params()
1835 	dsc->nfl_bpg_offset = DIV_ROUND_UP(data, (dsc->slice_height - 1));  in dsi_populate_dsc_params()
1837 	pre_num_extra_mux_bits = 3 * (mux_words_size + (4 * dsc->bits_per_component + 4) - 2);  in dsi_populate_dsc_params()
1842 	data = 2048 * (dsc->rc_model_size - dsc->initial_offset + num_extra_mux_bits);  in dsi_populate_dsc_params()
1843 	dsc->slice_bpg_offset = DIV_ROUND_UP(data, groups_total);  in dsi_populate_dsc_params()
1846 	data = dsc->bits_per_pixel * 16;  in dsi_populate_dsc_params()
1852 	data = (dsc->initial_xmit_delay * target_bpp_x16) / 16;  in dsi_populate_dsc_params()
1853 	final_value =  dsc->rc_model_size - data + num_extra_mux_bits;  in dsi_populate_dsc_params()
1854 	dsc->final_offset = final_value;  in dsi_populate_dsc_params()
1856 	final_scale = 8 * dsc->rc_model_size / (dsc->rc_model_size - final_value);  in dsi_populate_dsc_params()
1858 	data = (final_scale - 9) * (dsc->nfl_bpg_offset + dsc->slice_bpg_offset);  in dsi_populate_dsc_params()
1859 	dsc->scale_increment_interval = (2048 * dsc->final_offset) / data;  in dsi_populate_dsc_params()
1861 	dsc->scale_decrement_interval = groups_per_line / (dsc->initial_scale_value - 8);  in dsi_populate_dsc_params()
2553 	struct drm_dsc_config *dsc = msm_host->dsc;  in msm_dsi_host_check_dsc()  local
2557 	if (!msm_host->dsc)  in msm_dsi_host_check_dsc()
2560 	if (pic_width % dsc->slice_width) {  in msm_dsi_host_check_dsc()
2562 		       pic_width, dsc->slice_width);  in msm_dsi_host_check_dsc()
2566 	if (pic_height % dsc->slice_height) {  in msm_dsi_host_check_dsc()
2568 		       pic_height, dsc->slice_height);  in msm_dsi_host_check_dsc()
2657 	return msm_host->dsc;  in msm_dsi_host_get_dsc_config()