From: Meenakshikumar Somasundaram <meenakshikumar.somasunda...@amd.com>
[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....@amd.com>
Acked-by: Wayne Lin <wayne....@amd.com>
Acked-by: Nicholas Kazlauskas <nicholas.kazlaus...@amd.com>
Signed-off-by: Meenakshikumar Somasundaram <meenakshikumar.somasunda...@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 50 ++++++++++++++
.../drm/amd/display/dc/core/dc_link_dpia.c | 16 ++++-
drivers/gpu/drm/amd/display/dc/core/dc_stat.c | 3 +-
drivers/gpu/drm/amd/display/dc/dc.h | 7 ++
drivers/gpu/drm/amd/display/dc/dm_helpers.h | 5 ++
drivers/gpu/drm/amd/display/dmub/dmub_srv.h | 2 +
.../gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 65 +++++++++++++++++++
.../drm/amd/display/dmub/src/dmub_srv_stat.c | 5 ++
8 files changed, 149 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c
b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 6cdf68ca9048..517a2f0b4ba1 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -3678,6 +3678,56 @@ uint8_t get_link_index_from_dpia_port_index(const struct
dc *dc,
return link_index;
}
+/**
+ *****************************************************************************
+ * Function: dc_process_dmub_set_config_async
+ *
+ * @brief
+ * Submits set_config command to dmub via inbox message
+ *
+ * @param
+ * [in] dc: dc structure
+ * [in] link_index: link index
+ * [in] payload: aux payload
+ * [out] notify: set_config immediate reply
+ *
+ * @return
+ * True if successful, False if failure
+ *****************************************************************************
+ */
+bool dc_process_dmub_set_config_async(struct dc *dc,
+ uint32_t link_index,
+ struct set_config_cmd_payload *payload,
+ struct dmub_notification *notify)
+{
+ union dmub_rb_cmd cmd = {0};
+ struct dc_dmub_srv *dmub_srv = dc->ctx->dmub_srv;
+ bool is_cmd_complete = true;
+
+ /* prepare SET_CONFIG command */
+ cmd.set_config_access.header.type = DMUB_CMD__DPIA;
+ cmd.set_config_access.header.sub_type =
DMUB_CMD__DPIA_SET_CONFIG_ACCESS;
+
+ cmd.set_config_access.set_config_control.instance =
dc->links[link_index]->ddc_hw_inst;
+ cmd.set_config_access.set_config_control.cmd_pkt.msg_type =
payload->msg_type;
+ cmd.set_config_access.set_config_control.cmd_pkt.msg_data =
payload->msg_data;
+
+ if (!dc_dmub_srv_cmd_with_reply_data(dmub_srv, &cmd)) {
+ /* command is not processed by dmub */
+ notify->sc_status = SET_CONFIG_UNKNOWN_ERROR;
+ return is_cmd_complete;
+ }
+
+ /* command processed by dmub, if ret_status is 1, it is completed
instantly */
+ if (cmd.set_config_access.header.ret_status == 1)
+ notify->sc_status =
cmd.set_config_access.set_config_control.immed_status;
+ else
+ /* cmd pending, will receive notification via outbox */
+ is_cmd_complete = false;
+
+ return is_cmd_complete;
+}
+
/**
* dc_disable_accelerated_mode - disable accelerated mode
* @dc: dc structure
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 4b1ad057bd1f..a7fc60565bda 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
@@ -31,6 +31,8 @@
#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
@@ -91,10 +93,18 @@ 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. */
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stat.c
b/drivers/gpu/drm/amd/display/dc/core/dc_stat.c
index 7d4a5dc8fc91..4b372aa52801 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stat.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stat.c
@@ -64,7 +64,8 @@ void dc_stat_get_dmub_notification(const struct dc *dc,
struct dmub_notification
/* For HPD/HPD RX, convert dpia port index into link index */
if (notify->type == DMUB_NOTIFICATION_HPD ||
- notify->type == DMUB_NOTIFICATION_HPD_IRQ) {
+ notify->type == DMUB_NOTIFICATION_HPD_IRQ ||
+ notify->type == DMUB_NOTIFICATION_SET_CONFIG_REPLY) {
notify->link_index =
get_link_index_from_dpia_port_index(dc,
notify->link_index);
}
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h
b/drivers/gpu/drm/amd/display/dc/dc.h
index d51c7b000eb9..082706c921af 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -44,6 +44,8 @@
/* forward declaration */
struct aux_payload;
+struct set_config_cmd_payload;
+struct dmub_notification;
#define DC_VER "3.2.156"
@@ -1398,6 +1400,11 @@ bool dc_process_dmub_aux_transfer_async(struct dc *dc,
/* Get dc link index from dpia port index */
uint8_t get_link_index_from_dpia_port_index(const struct dc *dc,
uint8_t dpia_port_index);
+
+bool dc_process_dmub_set_config_async(struct dc *dc,
+ uint32_t link_index,
+ struct set_config_cmd_payload *payload,
+ struct dmub_notification *notify);
/*******************************************************************************
* DSC Interfaces
******************************************************************************/
diff --git a/drivers/gpu/drm/amd/display/dc/dm_helpers.h
b/drivers/gpu/drm/amd/display/dc/dm_helpers.h
index 3a905fb667bf..0fe66b080a03 100644
--- a/drivers/gpu/drm/amd/display/dc/dm_helpers.h
+++ b/drivers/gpu/drm/amd/display/dc/dm_helpers.h
@@ -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__ */
diff --git a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h
b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h
index efb667cf6c98..7a86c97af910 100644
--- a/drivers/gpu/drm/amd/display/dmub/dmub_srv.h
+++ b/drivers/gpu/drm/amd/display/dmub/dmub_srv.h
@@ -119,6 +119,7 @@ enum dmub_notification_type {
DMUB_NOTIFICATION_AUX_REPLY,
DMUB_NOTIFICATION_HPD,
DMUB_NOTIFICATION_HPD_IRQ,
+ DMUB_NOTIFICATION_SET_CONFIG_REPLY,
DMUB_NOTIFICATION_MAX
};
@@ -440,6 +441,7 @@ struct dmub_notification {
union {
struct aux_reply_data aux_reply;
enum dp_hpd_status hpd_status;
+ enum set_config_status sc_status;
};
};
diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
index 8461442b03a9..4c61e73ceccd 100644
--- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
+++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
@@ -684,11 +684,16 @@ enum dmub_out_cmd_type {
* Command type used for DP HPD event notification
*/
DMUB_OUT_CMD__DP_HPD_NOTIFY = 2,
+ /**
+ * Command type used for SET_CONFIG Reply notification
+ */
+ DMUB_OUT_CMD__SET_CONFIG_REPLY = 3,
};
/* DMUB_CMD__DPIA command sub-types. */
enum dmub_cmd_dpia_type {
DMUB_CMD__DPIA_DIG1_DPIA_CONTROL = 0,
+ DMUB_CMD__DPIA_SET_CONFIG_ACCESS = 1,
};
#pragma pack(push, 1)
@@ -1038,6 +1043,31 @@ struct dmub_rb_cmd_dig1_dpia_control {
struct dmub_cmd_dig_dpia_control_data dpia_control;
};
+/**
+ * SET_CONFIG Command Payload
+ */
+struct set_config_cmd_payload {
+ uint8_t msg_type; /* set config message type */
+ uint8_t msg_data; /* set config message data */
+};
+
+/**
+ * Data passed from driver to FW in a DMUB_CMD__DPIA_SET_CONFIG_ACCESS command.
+ */
+struct dmub_cmd_set_config_control_data {
+ struct set_config_cmd_payload cmd_pkt;
+ uint8_t instance; /* DPIA instance */
+ uint8_t immed_status; /* Immediate status returned in case of error */
+};
+
+/**
+ * DMUB command structure for SET_CONFIG command.
+ */
+struct dmub_rb_cmd_set_config_access {
+ struct dmub_cmd_header header; /* header */
+ struct dmub_cmd_set_config_control_data set_config_control; /* set
config data */
+};
+
/**
* struct dmub_rb_cmd_dpphy_init - DPPHY init.
*/
@@ -1285,6 +1315,33 @@ struct dmub_rb_cmd_dp_hpd_notify {
struct dp_hpd_data hpd_data;
};
+/**
+ * Definition of a SET_CONFIG reply from DPOA.
+ */
+enum set_config_status {
+ SET_CONFIG_PENDING = 0,
+ SET_CONFIG_ACK_RECEIVED,
+ SET_CONFIG_RX_TIMEOUT,
+ SET_CONFIG_UNKNOWN_ERROR,
+};
+
+/**
+ * Definition of a set_config reply
+ */
+struct set_config_reply_control_data {
+ uint8_t instance; /* DPIA Instance */
+ uint8_t status; /* Set Config reply */
+ uint16_t pad; /* Alignment */
+};
+
+/**
+ * Definition of a DMUB_OUT_CMD__SET_CONFIG_REPLY command.
+ */
+struct dmub_rb_cmd_dp_set_config_reply {
+ struct dmub_cmd_header header;
+ struct set_config_reply_control_data set_config_reply_control;
+};
+
/*
* Command IDs should be treated as stable ABI.
* Do not reuse or modify IDs.
@@ -2483,6 +2540,10 @@ union dmub_rb_cmd {
* Definition of a DMUB_CMD__DPIA_DIG1_CONTROL command.
*/
struct dmub_rb_cmd_dig1_dpia_control dig1_dpia_control;
+ /**
+ * Definition of a DMUB_CMD__DPIA_SET_CONFIG_ACCESS command.
+ */
+ struct dmub_rb_cmd_set_config_access set_config_access;
/**
* Definition of a DMUB_CMD__EDID_CEA command.
*/
@@ -2505,6 +2566,10 @@ union dmub_rb_out_cmd {
* HPD notify command.
*/
struct dmub_rb_cmd_dp_hpd_notify dp_hpd_notify;
+ /**
+ * SET_CONFIG reply command.
+ */
+ struct dmub_rb_cmd_dp_set_config_reply set_config_reply;
};
#pragma pack(pop)
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c
b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c
index d7f66e5285c0..44502ec919a2 100644
--- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv_stat.c
@@ -87,6 +87,11 @@ enum dmub_status dmub_srv_stat_get_notification(struct
dmub_srv *dmub,
notify->link_index = cmd.dp_hpd_notify.hpd_data.instance;
notify->result = AUX_RET_SUCCESS;
break;
+ case DMUB_OUT_CMD__SET_CONFIG_REPLY:
+ notify->type = DMUB_NOTIFICATION_SET_CONFIG_REPLY;
+ notify->link_index =
cmd.set_config_reply.set_config_reply_control.instance;
+ notify->sc_status =
cmd.set_config_reply.set_config_reply_control.status;
+ break;
default:
notify->type = DMUB_NOTIFICATION_NO_DATA;
break;
--
2.25.1
