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drm/amd/display: Support for SET_CONFIG processing with DMUB

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[Why]
To process SET_CONFIG transactions with DMUB using inbox1 and
outbox1 mail boxes.

[How]
1) Added inbox1 DPIA command subtype DMUB_CMD__DPIA_SET_CONFIG_ACCESS to
   issue SET_CONFIG command to DMUB in dc_process_dmub_set_config_async().
   DMUB processes the command with DPIA sends reply back immediately or
   in an outbox1 message triggering an outbox1 interrupt to driver.
2) DMUB posts SET_CONFIG reply as an Outbox1 message of type
   DMUB_OUT_CMD__SET_CONFIG_REPLY.
3) The dmub async to sync mechanism for AUX is modified to accommodate
   SET_CONFIG commands for both command issue and reply code paths.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Meenakshikumar Somasundaram
2021-04-30 19:02:33 -04:00
committed by Alex Deucher
parent 80789bcffe
commit 71af9d465b
8 changed files with 149 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/amd/display/dc/dm_helpers.h
View File

@@ -179,4 +179,9 @@ int dm_helper_dmub_aux_transfer_sync(
const struct dc_link *link,
struct aux_payload *payload,
enum aux_return_code_type *operation_result);
enum set_config_status;
int dm_helpers_dmub_set_config_sync(struct dc_context *ctx,
const struct dc_link *link,
struct set_config_cmd_payload *payload,
enum set_config_status *operation_result);
#endif /* __DM_HELPERS__ */