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disp: msm: sde: update initial lines calculation for dscv1.2

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This change updates the initial lines calculation implementation
to support dsc 1.2.

Change-Id: I322057efc5a4be94d42c29680437d1923ee3547e
Signed-off-by: Abhijit Kulkarni <kabhijit@codeaurora.org>
This commit is contained in:
Abhijit Kulkarni
2019-05-12 13:06:34 -07:00
parent 62eecded22
commit 673ebb896c
1 changed files with 53 additions and 14 deletions
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67
msm/sde/sde_encoder_dce.c
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@@ -112,29 +112,68 @@ static void _dce_dsc_pclk_param_calc(struct msm_display_dsc_info *dsc,
}
static int _dce_dsc_initial_line_calc(struct msm_display_dsc_info *dsc,
int enc_ip_width)
int enc_ip_width,
int dsc_cmn_mode)
{
int max_ssm_delay, max_se_size, obuf_latency;
int input_ssm_out_latency, base_hs_latency;
int max_ssm_delay, max_se_size, max_muxword_size;
int compress_bpp_group, obuf_latency, input_ssm_out_latency;
int base_hs_latency, chunk_bits, ob_data_width;
int output_rate_extra_budget_bits, multi_hs_extra_budget_bits;
int multi_hs_extra_latency, mux_word_size;
int ob_data_width_4comps, ob_data_width_3comps;
int output_rate_ratio_complement, container_slice_width;
int rtl_num_components, multi_hs_c, multi_hs_d;
/* Hardent core config */
int max_muxword_size = 48;
int output_rate = 64;
int rtl_max_bpc = 10;
int multiplex_mode_enable = 0, split_panel_enable = 0;
int rtl_max_bpc = 10, rtl_output_data_width = 64;
int pipeline_latency = 28;
int bpc = dsc->bpc, bpp = dsc->bpp;
int num_of_active_ss = dsc->full_frame_slices;
bool native_422 = false, native_420 = false;
if (dsc_cmn_mode & DSC_MODE_MULTIPLEX)
multiplex_mode_enable = 1;
if (dsc_cmn_mode & DSC_MODE_SPLIT_PANEL)
split_panel_enable = 0;
container_slice_width = (native_422 ?
dsc->slice_width / 2 : dsc->slice_width);
max_muxword_size = ((rtl_max_bpc >= 12) ? 64 : 48);
max_se_size = 4 * (rtl_max_bpc + 1);
max_ssm_delay = max_se_size + max_muxword_size - 1;
mux_word_size = (dsc->bpc >= 12 ? 64 : 48);
input_ssm_out_latency = pipeline_latency + (3 * (max_ssm_delay + 2));
obuf_latency = DIV_ROUND_UP((9 * output_rate +
mux_word_size), dsc->bpp) + 1;
mux_word_size = (bpc >= 12 ? 64 : 48);
compress_bpp_group = (native_422 ? 2 * bpp : bpp);
input_ssm_out_latency = pipeline_latency + (3 * (max_ssm_delay + 2)
* num_of_active_ss);
rtl_num_components = (native_420 | native_422 ? 4 : 3);
ob_data_width_4comps = ((rtl_output_data_width >= (2 *
max_muxword_size)) ?
rtl_output_data_width :
(2 * rtl_output_data_width));
ob_data_width_3comps = (rtl_output_data_width >= max_muxword_size ?
rtl_output_data_width : 2 * rtl_output_data_width);
ob_data_width = (rtl_num_components == 4 ?
ob_data_width_4comps : ob_data_width_3comps);
obuf_latency = DIV_ROUND_UP((9 * ob_data_width + mux_word_size),
compress_bpp_group) + 1;
base_hs_latency = dsc->initial_xmit_delay + input_ssm_out_latency
+ obuf_latency;
multi_hs_extra_latency = DIV_ROUND_UP((8 * dsc->chunk_size), dsc->bpp);
+ obuf_latency;
chunk_bits = 8 * dsc->chunk_size;
output_rate_ratio_complement = ob_data_width - compress_bpp_group;
output_rate_extra_budget_bits =
(output_rate_ratio_complement * chunk_bits) >>
(ob_data_width == 128 ? 7 : 6);
multi_hs_c = split_panel_enable * multiplex_mode_enable;
multi_hs_d = (num_of_active_ss > 1) * (ob_data_width >
compress_bpp_group);
multi_hs_extra_budget_bits = (multi_hs_c ?
chunk_bits : (multi_hs_d ? chunk_bits :
output_rate_extra_budget_bits));
multi_hs_extra_latency = DIV_ROUND_UP(multi_hs_extra_budget_bits,
compress_bpp_group);
dsc->initial_lines = DIV_ROUND_UP((base_hs_latency +
multi_hs_extra_latency), dsc->slice_width);
multi_hs_extra_latency),
container_slice_width);
return 0;
}
@@ -307,7 +346,7 @@ static int _dce_dsc_setup(struct sde_encoder_virt *sde_enc,
if (dsc_merge)
enc_ip_w = intf_ip_w / 2;
_dce_dsc_initial_line_calc(dsc, enc_ip_w);
_dce_dsc_initial_line_calc(dsc, enc_ip_w, dsc_common_mode);
/*
* __is_ich_reset_override_needed should be called only after