diff options
| author | Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> | 2021-04-30 19:02:33 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-10-06 15:52:11 -0400 |
| commit | 71af9d465bedb3f757056beb3f6985201cef0a5d (patch) | |
| tree | d1486abb594eeadb646843808e5454f99bd639e6 /drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c | |
| parent | 80789bcffec34b5c6b65f33e3c46bf859dc25888 (diff) | |
| download | linux-71af9d465bedb3f757056beb3f6985201cef0a5d.tar.bz2 | |
drm/amd/display: Support for SET_CONFIG processing with DMUB
[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>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c index 15dbea3518cf..6d0ddc82e6c8 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dpia.c @@ -32,6 +32,8 @@ #include "dpcd_defs.h" #include "link_hwss.h" #include "inc/link_dpcd.h" +#include "dm_helpers.h" +#include "dmub/inc/dmub_cmd.h" #define DC_LOGGER \ link->ctx->logger @@ -92,10 +94,18 @@ static enum link_training_result dpia_configure_link(struct dc_link *link, } static enum dc_status core_link_send_set_config(struct dc_link *link, - uint8_t msg_type, uint8_t msg_data) + uint8_t msg_type, + uint8_t msg_data) { - /** @todo Implement */ - return DC_OK; + struct set_config_cmd_payload payload; + enum set_config_status set_config_result = SET_CONFIG_PENDING; + + /* prepare set_config payload */ + payload.msg_type = msg_type; + payload.msg_data = msg_data; + + /* set_config should return ACK if successful */ + return (set_config_result == SET_CONFIG_ACK_RECEIVED) ? DC_OK : DC_ERROR_UNEXPECTED; } /* Build SET_CONFIG message data payload for specified message type. */ |