diff options
| author |  Sung Joon Kim <sungkim@amd.com>
| 2023-08-09 16:39:53 -0400 |
|---|---|---|
| committer |  Alex Deucher <alexander.deucher@amd.com>
| 2023-10-09 16:50:27 -0400 |
| commit | 1d93c4db4e0fc82e9f975af213fd8dd00dd6ecc8 (patch) | |
| tree | 9b9a7d44a70ec5ef109ea9b68970adee175d07c4 /drivers/gpu/drm/amd/display/dc/dml2 | |
| parent | drm/amd/display: Handle multiple streams sourcing same surface (diff) | |
| download | linux-1d93c4db4e0fc82e9f975af213fd8dd00dd6ecc8.tar.gz linux-1d93c4db4e0fc82e9f975af213fd8dd00dd6ecc8.tar.bz2 linux-1d93c4db4e0fc82e9f975af213fd8dd00dd6ecc8.zip | |
drm/amd/display: Use fixed DET Buffer Size
[why]
Regression from DML1.0 where we use differen DET buffer sizes for each
pipe. From the spec, we need to use DET buffer size of 384 kb for each
pipe
[how]
Ensure to use 384 kb DET buffer sizes for each available pipe.
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Sung Joon Kim <sungkim@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml2')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c | 22 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h | 1 |
2 files changed, 14 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c index 946a98af0020..4c3661fbecbc 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_utils.c @@ -414,17 +414,21 @@ void dml2_apply_det_buffer_allocation_policy(struct dml2_context *in_ctx, struct for (plane_index = 0; plane_index < dml_dispcfg->num_surfaces; plane_index++) { - dml_dispcfg->plane.DETSizeOverride[plane_index] = ((max_det_size / num_of_streams) / num_of_planes_per_stream[stream_index] / in_ctx->det_helper_scratch.dpps_per_surface[plane_index]); + if (in_ctx->config.override_det_buffer_size_kbytes) + dml_dispcfg->plane.DETSizeOverride[plane_index] = max_det_size / in_ctx->config.dcn_pipe_count; + else { + dml_dispcfg->plane.DETSizeOverride[plane_index] = ((max_det_size / num_of_streams) / num_of_planes_per_stream[stream_index] / in_ctx->det_helper_scratch.dpps_per_surface[plane_index]); + + /* If the override size is not divisible by det_segment_size then round off to nearest number divisible by det_segment_size as + * this is a requirement. + */ + if (dml_dispcfg->plane.DETSizeOverride[plane_index] % in_ctx->config.det_segment_size != 0) { + dml_dispcfg->plane.DETSizeOverride[plane_index] = dml_dispcfg->plane.DETSizeOverride[plane_index] & ~0x3F; + } - /* If the override size is not divisible by det_segment_size then round off to nearest number divisible by det_segment_size as - * this is a requirement. - */ - if (dml_dispcfg->plane.DETSizeOverride[plane_index] % in_ctx->config.det_segment_size != 0) { - dml_dispcfg->plane.DETSizeOverride[plane_index] = dml_dispcfg->plane.DETSizeOverride[plane_index] & ~0x3F; + if (plane_index + 1 < dml_dispcfg->num_surfaces && dml_dispcfg->plane.BlendingAndTiming[plane_index] != dml_dispcfg->plane.BlendingAndTiming[plane_index + 1]) + stream_index++; } - - if (plane_index + 1 < dml_dispcfg->num_surfaces && dml_dispcfg->plane.BlendingAndTiming[plane_index] != dml_dispcfg->plane.BlendingAndTiming[plane_index + 1]) - stream_index++; } } diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h index 4d0377354bdd..f3b85b0891d3 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h +++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_wrapper.h @@ -137,6 +137,7 @@ struct dml2_configuration_options { bool skip_hw_state_mapping; bool optimize_odm_4to1; bool minimize_dispclk_using_odm; + bool override_det_buffer_size_kbytes; struct dml2_dc_callbacks callbacks; struct { bool force_disable_subvp; |