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| author |   Eric Yang <Eric.Yang2@amd.com> | 2021-07-09 12:57:50 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-07-23 10:07:58 -0400 |
| commit | a4d5df1787cc143b513b9f472ead1ff5eaa550e1 (patch) | |
| tree | 12b8b8eba21ada474cdd94a00f5b2fdbb61a7b08 /drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h | |
| parent | drm/amd/display: Line Buffer changes (diff) | |
| download | wireguard-linux-a4d5df1787cc143b513b9f472ead1ff5eaa550e1.tar.xz wireguard-linux-a4d5df1787cc143b513b9f472ead1ff5eaa550e1.zip | |
drm/amd/display: add workaround for riommu invalidation request hang
[Why]
When an riommu invalidation request come at the same time as a pipe is
disabled there can be a case where DCN cannot ACK the request if only
one VMID is setup in the inuse list.
[How]
Setup a second unused VMID will work around the issue.
Reviewed-by: Jun Lei <jun.lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h b/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h index 713f5558f5e1..259283d8bde8 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h +++ b/drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h @@ -166,12 +166,15 @@ struct hubbub_funcs { void (*program_det_size)(struct hubbub *hubbub, int hubp_inst, unsigned det_buffer_size_in_kbyte); void (*program_compbuf_size)(struct hubbub *hubbub, unsigned compbuf_size_kb, bool safe_to_increase); void (*init_crb)(struct hubbub *hubbub); + void (*apply_invalidation_req_wa)(struct hubbub *hubbub, + struct dcn_hubbub_phys_addr_config *pa_config); }; struct hubbub { const struct hubbub_funcs *funcs; struct dc_context *ctx; bool riommu_active; + struct dcn_hubbub_phys_addr_config vmid_cache; }; #endif |