diff options
| author | Dillon Varone <Dillon.Varone@amd.com> | 2022-11-17 13:57:31 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-11-29 11:03:38 -0500 |
| commit | 359bcc904e233c8285d40a92121c8a5056d36e6f (patch) | |
| tree | 2d238297af1a762c059ef96daeea4e83f84d3047 /drivers/gpu | |
| parent | aaae52110a381033d960c087bd276e2a857eb7cb (diff) | |
| download | linux-359bcc904e233c8285d40a92121c8a5056d36e6f.tar.bz2 | |
drm/amd/display: Fix arithmetic error in MALL size calculations for subvp
[Description]
Need to subtract unused section of the viewport when calculating required space
in MALL for subvp instead of adding, to prevent over allocation.
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c | 4 |
1 files changed, 2 insertions, 2 deletions
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..d869c057230f 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 @@ -97,14 +97,14 @@ uint32_t dcn32_helper_calculate_num_ways_for_subvp(struct dc *dc, struct dc_stat * FLOOR(vp_x_start, blk_width) */ full_vp_width_blk_aligned = ((pipe->plane_res.scl_data.viewport.x + - pipe->plane_res.scl_data.viewport.width + mblk_width - 1) / mblk_width * mblk_width) + + pipe->plane_res.scl_data.viewport.width + mblk_width - 1) / mblk_width * mblk_width) - (pipe->plane_res.scl_data.viewport.x / mblk_width * mblk_width); /* full_vp_height_blk_aligned = FLOOR(vp_y_start + full_vp_height + blk_height - 1, blk_height) - * FLOOR(vp_y_start, blk_height) */ full_vp_height_blk_aligned = ((pipe->plane_res.scl_data.viewport.y + - full_vp_height + mblk_height - 1) / mblk_height * mblk_height) + + full_vp_height + mblk_height - 1) / mblk_height * mblk_height) - (pipe->plane_res.scl_data.viewport.y / mblk_height * mblk_height); /* mall_alloc_width_blk_aligned_l/c = full_vp_width_blk_aligned_l/c */ |