diff options
| author | Ilya Bakoulin <ilya.bakoulin@amd.com> | 2023-11-16 23:28:53 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-30 00:49:23 +0300 |
| commit | 5290ed0a8b261115fe4965a6d95a642b0742d159 (patch) | |
| tree | c3b08aec964a7fc31205c5e2ff5e37402851feab /drivers/gpu/drm/amd/display/dc/dsc | |
| parent | d581ceab26a1be9fe94befe2604cbe99eadf1acc (diff) | |
| download | linux-5290ed0a8b261115fe4965a6d95a642b0742d159.tar.xz | |
drm/amd/display: Add DSC granular throughput adjustment
[Why/How]
Update DSC DPCD parsing to take granular throughput adjustment into
consideration.
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Ilya Bakoulin <ilya.bakoulin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dsc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c | 10 |
1 files changed, 8 insertions, 2 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 e8b5f17beb96..0df6c55eb326 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c @@ -331,8 +331,9 @@ bool dc_dsc_parse_dsc_dpcd(const struct dc *dc, int buff_block_size; int buff_size; - if (!dsc_buff_block_size_from_dpcd(dpcd_dsc_basic_data[DP_DSC_RC_BUF_BLK_SIZE - DP_DSC_SUPPORT], - &buff_block_size)) + if (!dsc_buff_block_size_from_dpcd( + dpcd_dsc_basic_data[DP_DSC_RC_BUF_BLK_SIZE - DP_DSC_SUPPORT] & 0x03, + &buff_block_size)) return false; buff_size = dpcd_dsc_basic_data[DP_DSC_RC_BUF_SIZE - DP_DSC_SUPPORT] + 1; @@ -357,10 +358,15 @@ bool dc_dsc_parse_dsc_dpcd(const struct dc *dc, { int dpcd_throughput = dpcd_dsc_basic_data[DP_DSC_PEAK_THROUGHPUT - DP_DSC_SUPPORT]; + int dsc_throughput_granular_delta; + + dsc_throughput_granular_delta = dpcd_dsc_basic_data[DP_DSC_RC_BUF_BLK_SIZE - DP_DSC_SUPPORT] >> 3; + dsc_throughput_granular_delta *= 2; if (!dsc_throughput_from_dpcd(dpcd_throughput & DP_DSC_THROUGHPUT_MODE_0_MASK, &dsc_sink_caps->throughput_mode_0_mps)) return false; + dsc_sink_caps->throughput_mode_0_mps += dsc_throughput_granular_delta; dpcd_throughput = (dpcd_throughput & DP_DSC_THROUGHPUT_MODE_1_MASK) >> DP_DSC_THROUGHPUT_MODE_1_SHIFT; if (!dsc_throughput_from_dpcd(dpcd_throughput, &dsc_sink_caps->throughput_mode_1_mps)) |