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| author | Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> | 2024-03-21 18:20:38 -0600 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-04-09 22:05:58 -0400 |
| commit | ffa6d7ab1b4acae9cab8adfd0ad340c74a8589c5 (patch) | |
| tree | ecfd14c0ad2c018cad097a5b0b6ed843e278867a /drivers/gpu/drm | |
| parent | e7927b2914d40cff609b43a1cf9077e6737a2e27 (diff) | |
| download | linux-stable-ffa6d7ab1b4acae9cab8adfd0ad340c74a8589c5.tar.gz linux-stable-ffa6d7ab1b4acae9cab8adfd0ad340c74a8589c5.tar.bz2 linux-stable-ffa6d7ab1b4acae9cab8adfd0ad340c74a8589c5.zip | |
drm/amd/display: Update DSC compute parameter calculation
Adjust bytes per pixel calculation to use div_u64.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dsc/rc_calc_dpi.c | 7 |
1 files changed, 3 insertions, 4 deletions
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; |