diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dsc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c | 7 |
2 files changed, 13 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c index ac41f9c0a283..150ef23440a2 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c @@ -458,7 +458,7 @@ bool dc_dsc_compute_bandwidth_range( bool is_dsc_possible = false; struct dsc_enc_caps dsc_enc_caps; struct dsc_enc_caps dsc_common_caps; - struct dc_dsc_config config; + struct dc_dsc_config config = {0}; struct dc_dsc_config_options options = {0}; options.dsc_min_slice_height_override = dsc_min_slice_height_override; @@ -868,9 +868,9 @@ static bool setup_dsc_config( struct dc_dsc_config *dsc_cfg) { struct dsc_enc_caps dsc_common_caps; - int max_slices_h; - int min_slices_h; - int num_slices_h; + int max_slices_h = 0; + int min_slices_h = 0; + int num_slices_h = 0; int pic_width; int slice_width; int target_bpp; @@ -1055,7 +1055,12 @@ static bool setup_dsc_config( if (!is_dsc_possible) goto done; - dsc_cfg->num_slices_v = pic_height/slice_height; + if (slice_height > 0) { + dsc_cfg->num_slices_v = pic_height / slice_height; + } else { + is_dsc_possible = false; + goto done; + } if (target_bandwidth_kbps > 0) { is_dsc_possible = decide_dsc_target_bpp_x16( diff --git a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c index 36d6c1646a51..59864130cf83 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c @@ -101,7 +101,6 @@ int dscc_compute_dsc_parameters(const struct drm_dsc_config *pps, { int ret; struct drm_dsc_config dsc_cfg; - unsigned long long tmp; dsc_params->pps = *pps; dsc_params->pps.initial_scale_value = 8 * rc->rc_model_size / (rc->rc_model_size - rc->initial_fullness_offset); @@ -112,9 +111,9 @@ int dscc_compute_dsc_parameters(const struct drm_dsc_config *pps, dsc_cfg.mux_word_size = dsc_params->pps.bits_per_component <= 10 ? 48 : 64; ret = drm_dsc_compute_rc_parameters(&dsc_cfg); - tmp = (unsigned long long)dsc_cfg.slice_chunk_size * 0x10000000 + (dsc_cfg.slice_width - 1); - do_div(tmp, (uint32_t)dsc_cfg.slice_width); //ROUND-UP - dsc_params->bytes_per_pixel = (uint32_t)tmp; + dsc_params->bytes_per_pixel = + (uint32_t)(div_u64(((uint64_t)dsc_cfg.slice_chunk_size * 0x10000000 + (dsc_cfg.slice_width - 1)), + (uint32_t)dsc_cfg.slice_width)); /* Round-up */ copy_pps_fields(&dsc_params->pps, &dsc_cfg); dsc_params->rc_buffer_model_size = dsc_cfg.rc_bits; |