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disp: msm: sde: fix dsc 1_2 rate control parameter

Kaynağa Gözat 
This change fixes the rate control parameter namely
first_line_bpg_offset as per recommended hardware
settings.

Change-Id: I88cfc745443cdf6b96a8fca01306dec8a7572b1f
Signed-off-by: Abhijit Kulkarni <kabhijit@codeaurora.org>
Bu işleme şunda yer alıyor:
Abhijit Kulkarni
2020-11-20 21:17:00 -08:00
ebeveyn 7a98aa2134
işleme 6244f0a8f8
1 değiştirilmiş dosya ile 44 ekleme ve 8 silme
Yama Dosyasını İndir Diff Dosyasını İndir Tüm dosyaları genişlet Tüm dosyaları daralt

52
msm/sde_dsc_helper.c
Dosyayı Görüntüle

@@ -39,7 +39,7 @@ static u16 sde_dsc_rc_buf_thresh[DSC_NUM_BUF_RANGES - 1] =
*/
static char sde_dsc_rc_range_min_qp[DSC_RATIO_TYPE_MAX][DSC_NUM_BUF_RANGES] = {
/* DSC v1.1 */
{0, 0, 1, 1, 3, 3, 3, 3, 3, 3, 5, 5, 5, 7, 12},
{0, 0, 1, 1, 3, 3, 3, 3, 3, 3, 5, 5, 5, 7, 13},
{0, 4, 5, 5, 7, 7, 7, 7, 7, 7, 9, 9, 9, 11, 17},
{0, 4, 5, 6, 7, 7, 7, 7, 7, 7, 9, 9, 9, 11, 15},
/* DSC v1.1 SCR and DSC v1.2 RGB 444 */
@@ -180,6 +180,36 @@ static int _get_rc_table_index(struct drm_dsc_config *dsc, int scr_ver)
return -EINVAL;
}
u8 _get_dsc_v1_2_bpg_offset(struct drm_dsc_config *dsc)
{
u8 bpg_offset = 0;
u8 uncompressed_bpg_rate;
u8 bpp = DSC_BPP(*dsc);
if (dsc->slice_height < 8)
bpg_offset = 2 * (dsc->slice_height - 1);
else if (dsc->slice_height < 20)
bpg_offset = 12;
else if (dsc->slice_height <= 30)
bpg_offset = 13;
else if (dsc->slice_height < 42)
bpg_offset = 14;
else
bpg_offset = 15;
if (dsc->native_422)
uncompressed_bpg_rate = 3 * bpp * 4;
else if (dsc->native_420)
uncompressed_bpg_rate = 3 * bpp;
else
uncompressed_bpg_rate = (3 * bpp + 2) * 3;
if (bpg_offset < (uncompressed_bpg_rate - (3 * bpp)))
return bpg_offset;
else
return (uncompressed_bpg_rate - (3 * bpp));
}
int sde_dsc_populate_dsc_config(struct drm_dsc_config *dsc, int scr_ver) {
int bpp, bpc;
int groups_per_line, groups_total;
@@ -193,12 +223,15 @@ int sde_dsc_populate_dsc_config(struct drm_dsc_config *dsc, int scr_ver) {
dsc->rc_model_size = 8192;
if (dsc->dsc_version_major == 0x1 && ((dsc->dsc_version_minor == 0x1 &&
scr_ver == 0x1) ||
(dsc->dsc_version_minor == 0x2)))
dsc->first_line_bpg_offset = 15;
else
dsc->first_line_bpg_offset = 12;
if ((dsc->dsc_version_major == 0x1) &&
(dsc->dsc_version_minor == 0x1)) {
if (scr_ver == 0x1)
dsc->first_line_bpg_offset = 15;
else
dsc->first_line_bpg_offset = 12;
} else if (dsc->dsc_version_minor == 0x2) {
dsc->first_line_bpg_offset = _get_dsc_v1_2_bpg_offset(dsc);
}
dsc->rc_edge_factor = 6;
dsc->rc_tgt_offset_high = 3;
@@ -499,7 +532,10 @@ int sde_dsc_create_pps_buf_cmd(struct msm_display_dsc_info *dsc_info,
}
if (dsc->dsc_version_minor == 0x2) {
data = dsc->native_422 | dsc->native_420 << 1;
if (dsc->native_422)
data = BIT(0);
else if (dsc->native_420)
data = BIT(1);
*bp++ = data; /* pps88 */
*bp++ = dsc->second_line_bpg_offset; /* pps89 */