diff options
| author | Eric Yang <[email protected]> | 2021-07-09 12:57:50 -0400 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2021-07-23 10:07:58 -0400 |
| commit | a4d5df1787cc143b513b9f472ead1ff5eaa550e1 (patch) | |
| tree | 12b8b8eba21ada474cdd94a00f5b2fdbb61a7b08 /drivers/gpu/drm/amd/display/dc/inc/hw/dchubbub.h | |
| parent | ba16b22d42283b6393db123ce0ff6e17bb0d01eb (diff) | |
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 <[email protected]>
Acked-by: Rodrigo Siqueira <[email protected]>
Signed-off-by: Eric Yang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
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 |