From: Dillon Varone <Dillon.Varone@xxxxxxx> [Description] Calculations for determining DCC meta size should be pitch*height*bpp/256. Reviewed-by: Alvin Lee <Alvin.Lee2@xxxxxxx> Acked-by: Jasdeep Dhillon <jdhillon@xxxxxxx> Signed-off-by: Dillon Varone <Dillon.Varone@xxxxxxx> --- drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c | 6 +++--- .../drm/amd/display/dc/dcn32/dcn32_resource_helpers.c | 11 ++++++++--- 2 files changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c index 76548b4b822c..c9b2343947be 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c @@ -262,11 +262,11 @@ static uint32_t dcn32_calculate_cab_allocation(struct dc *dc, struct dc_state *c num_mblks = ((mall_alloc_width_blk_aligned + mblk_width - 1) / mblk_width) * ((mall_alloc_height_blk_aligned + mblk_height - 1) / mblk_height); - /* For DCC: - * meta_num_mblk = CEILING(full_mblk_width_ub_l*full_mblk_height_ub_l*Bpe/256/mblk_bytes, 1) + /*For DCC: + * meta_num_mblk = CEILING(meta_pitch*full_vp_height*Bpe/256/mblk_bytes, 1) */ if (pipe->plane_state->dcc.enable) - num_mblks += (mall_alloc_width_blk_aligned * mall_alloc_width_blk_aligned * bytes_per_pixel + + num_mblks += (pipe->plane_state->dcc.meta_pitch * pipe->plane_res.scl_data.viewport.height * bytes_per_pixel + (256 * DCN3_2_MALL_MBLK_SIZE_BYTES) - 1) / (256 * DCN3_2_MALL_MBLK_SIZE_BYTES); bytes_in_mall = num_mblks * DCN3_2_MALL_MBLK_SIZE_BYTES; diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c index fa3778849db1..94fd125daa6b 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c +++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c @@ -121,14 +121,19 @@ uint32_t dcn32_helper_calculate_num_ways_for_subvp(struct dc *dc, struct dc_stat */ num_mblks = ((mall_alloc_width_blk_aligned + mblk_width - 1) / mblk_width) * ((mall_alloc_height_blk_aligned + mblk_height - 1) / mblk_height); + + /*For DCC: + * meta_num_mblk = CEILING(meta_pitch*full_vp_height*Bpe/256/mblk_bytes, 1) + */ + if (pipe->plane_state->dcc.enable) + num_mblks += (pipe->plane_state->dcc.meta_pitch * pipe->plane_res.scl_data.viewport.height * bytes_per_pixel + + (256 * DCN3_2_MALL_MBLK_SIZE_BYTES) - 1) / (256 * DCN3_2_MALL_MBLK_SIZE_BYTES); + bytes_in_mall = num_mblks * DCN3_2_MALL_MBLK_SIZE_BYTES; // cache lines used is total bytes / cache_line size. Add +2 for worst case alignment // (MALL is 64-byte aligned) cache_lines_per_plane = bytes_in_mall / dc->caps.cache_line_size + 2; - /* For DCC divide by 256 */ - if (pipe->plane_state->dcc.enable) - cache_lines_per_plane = cache_lines_per_plane + (cache_lines_per_plane / 256) + 1; cache_lines_used += cache_lines_per_plane; } } -- 2.34.1
