diff options
| author | Michael Strauss <michael.strauss@amd.com> | 2021-11-18 16:57:25 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-12-01 16:06:38 -0500 |
| commit | f3edefce70887d78ff88d9f179bdec5ea62a50a2 (patch) | |
| tree | 9f7dc6b3e209cdc50f1621219f29554430aa83b7 /drivers/gpu/drm/amd/display | |
| parent | 2f2a4b1879bf6448865af9bdab61d1b7986f6dd0 (diff) | |
| download | linux-f3edefce70887d78ff88d9f179bdec5ea62a50a2.tar.bz2 | |
drm/amd/display: Add force detile buffer size debug flag
[WHY]
Allow changing DET size with debug flag for testing purposes
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Michael Strauss <michael.strauss@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')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c | 3 |
2 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 5974d9c1bcb6..7f76e8fc5ace 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -75,6 +75,16 @@ enum dc_plane_type { DC_PLANE_TYPE_DCN_UNIVERSAL, }; +// Sizes defined as multiples of 64KB +enum det_size { + DET_SIZE_DEFAULT = 0, + DET_SIZE_192KB = 3, + DET_SIZE_256KB = 4, + DET_SIZE_320KB = 5, + DET_SIZE_384KB = 6 +}; + + struct dc_plane_cap { enum dc_plane_type type; uint32_t blends_with_above : 1; @@ -692,6 +702,8 @@ struct dc_debug_options { /* FEC/PSR1 sequence enable delay in 100us */ uint8_t fec_enable_delay_in100us; bool enable_driver_sequence_debug; + enum det_size crb_alloc_policy; + int crb_alloc_policy_min_disp_count; #if defined(CONFIG_DRM_AMD_DC_DCN) bool disable_z10; bool enable_sw_cntl_psr; diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c index d87210d79a03..a1ff2758dfeb 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c @@ -1830,6 +1830,9 @@ static int dcn31_populate_dml_pipes_from_context( context->bw_ctx.dml.ip.det_buffer_size_kbytes = 192; pipes[0].pipe.src.unbounded_req_mode = true; } + } else if (context->stream_count >= dc->debug.crb_alloc_policy_min_disp_count + && dc->debug.crb_alloc_policy > DET_SIZE_DEFAULT) { + context->bw_ctx.dml.ip.det_buffer_size_kbytes = dc->debug.crb_alloc_policy * 64; } return pipe_cnt; |