diff options
| author | Kevin Gao <kgao1003@amd.com> | 2025-04-17 15:37:06 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-05-05 12:58:17 -0400 |
| commit | 18a77bda7a9b999dc6c04bf6d68b1fc89d8ed4d6 (patch) | |
| tree | 24c0870d8ebc47fa623d0b17a58dfe9592851a5a | |
| parent | c00a39f62bd57bf4942d769261dd2e5c4077835d (diff) | |
drm/amd/display: Add skip rIOMMU dc config option
[Why]
Need option to skip rIOMMU calls for dcn21.
[How]
Added rIOMMU dc config option and check for whether to skip
rIOMMU calls.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Kevin Gao <kgao1003@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/hubbub/dcn21/dcn21_hubbub.c | 6 |
2 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index ca879f27b0dd..914012948740 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -448,6 +448,7 @@ struct dc_config { bool enable_windowed_mpo_odm; bool forceHBR2CP2520; // Used for switching between test patterns TPS4 and CP2520 uint32_t allow_edp_hotplug_detection; + bool skip_riommu_prefetch_wa; bool clamp_min_dcfclk; uint64_t vblank_alignment_dto_params; uint8_t vblank_alignment_max_frame_time_diff; diff --git a/drivers/gpu/drm/amd/display/dc/hubbub/dcn21/dcn21_hubbub.c b/drivers/gpu/drm/amd/display/dc/hubbub/dcn21/dcn21_hubbub.c index 2546224b326a..e4496ad203b2 100644 --- a/drivers/gpu/drm/amd/display/dc/hubbub/dcn21/dcn21_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/hubbub/dcn21/dcn21_hubbub.c @@ -132,9 +132,9 @@ int hubbub21_init_dchub(struct hubbub *hubbub, // Init VMID 0 based on PA config dcn20_vmid_setup(&hubbub1->vmid[0], &phys_config); } - - dcn21_dchvm_init(hubbub); - + if (!hubbub1->base.ctx->dc->config.skip_riommu_prefetch_wa) { + dcn21_dchvm_init(hubbub); + } return hubbub1->num_vmid; } |