drm/amd/display: add aux transition event log.

[Why]
Enhance aux transition debugging information.

[How]
Added Aux request and reply event log.

Signed-off-by: Chiawen Huang <chiawen.huang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dm_event_log.h b/drivers/gpu/drm/amd/display/dc/dm_event_log.h
new file mode 100644 (file)
index 0000000..c1ce2dd
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dm_event_log.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2018 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+/**
+ * This file defines external dependencies of Display Core.
+ */
+
+#ifndef __DM_EVENT_LOG_H__
+
+#define __DM_EVENT_LOG_H__
+
+#define EVENT_LOG_I2CAUX_READ(transType, dcc, address, status, len, data)
+#define EVENT_LOG_I2CAUX_WRITE(transType, dcc, address, status, len, data)
+#define EVENT_LOG_AUX_REQ(dcc, type, action, address, len, data)
+#define EVENT_LOG_AUX_Reply(dcc, type, swStatus, replyStatus, len, data)
+
+#endif

diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.c b/drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.c
index 0afd2fa..03292c5 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.c
+++ b/drivers/gpu/drm/amd/display/dc/i2caux/aux_engine.c
@@ -24,6 +24,7 @@
  */
 
 #include "dm_services.h"
+#include "dm_event_log.h"
 
 /*
  * Pre-requisites: headers required by header of this unit
@@ -296,6 +297,12 @@ static bool read_command(
 
        if (request->payload.address_space ==
                I2CAUX_TRANSACTION_ADDRESS_SPACE_DPCD) {
+               EVENT_LOG_I2CAUX_READ(request->payload.address_space,
+                               engine->base.ddc->pin_data->en,
+                               request->payload.address,
+                               request->status,
+                               request->payload.length,
+                               request->payload.data);
                DC_LOG_I2C_AUX("READ: addr:0x%x  value:0x%x Result:%d",
                                request->payload.address,
                                request->payload.data[0],
@@ -512,6 +519,12 @@ static bool write_command(
 
        if (request->payload.address_space ==
                I2CAUX_TRANSACTION_ADDRESS_SPACE_DPCD) {
+               EVENT_LOG_I2CAUX_WRITE(request->payload.address_space,
+                               engine->base.ddc->pin_data->en,
+                               request->payload.address,
+                               request->status,
+                               request->payload.length,
+                               request->payload.data);
                DC_LOG_I2C_AUX("WRITE: addr:0x%x  value:0x%x Result:%d",
                                request->payload.address,
                                request->payload.data[0],

diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c
index ae5caa9..4a88fc7 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c
+++ b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c
@@ -24,6 +24,7 @@
  */
 
 #include "dm_services.h"
+#include "dm_event_log.h"
 
 /*
  * Pre-requisites: headers required by header of this unit
@@ -273,6 +274,8 @@ static void submit_channel_request(
        REG_WAIT(AUX_SW_STATUS, AUX_SW_DONE, 0,
                                10, aux110->timeout_period/10);
        REG_UPDATE(AUX_SW_CONTROL, AUX_SW_GO, 1);
+       EVENT_LOG_AUX_REQ(engine->base.ddc->pin_data->en, Native, request->action,
+                                       request->address, request->length, request->data);
 }
 
 static int read_channel_reply(struct aux_engine *engine, uint32_t size,
@@ -336,7 +339,9 @@ static void process_channel_reply(
        uint32_t sw_status;
 
        bytes_replied = read_channel_reply(engine, reply->length, reply->data,
-                                          &reply_result, &sw_status);
+                                               &reply_result, &sw_status);
+       EVENT_LOG_AUX_Reply(engine->base.ddc->pin_data->en, Native,
+                                       sw_status, reply_result, bytes_replied, reply->data);
 
        /* in case HPD is LOW, exit AUX transaction */
        if ((sw_status & AUX_SW_STATUS__AUX_SW_HPD_DISCON_MASK)) {

diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.c b/drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.c
index 4b54fcf..1747b9f 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.c
+++ b/drivers/gpu/drm/amd/display/dc/i2caux/i2c_hw_engine.c
@@ -24,6 +24,7 @@
  */
 
 #include "dm_services.h"
+#include "dm_event_log.h"
 
 /*
  * Pre-requisites: headers required by header of this unit
@@ -170,6 +171,23 @@ bool dal_i2c_hw_engine_submit_request(
                        process_channel_reply(&hw_engine->base, &reply);
        }
 
+       if (i2caux_request->operation == I2CAUX_TRANSACTION_READ) {
+               EVENT_LOG_I2CAUX_READ(i2caux_request->payload.address_space,
+                                                       engine->ddc->pin_data->en,
+                                                       i2caux_request->payload.address,
+                                                       i2caux_request->status,
+                                                       i2caux_request->payload.length,
+                                                       i2caux_request->payload.data);
+       } else if (i2caux_request->operation == I2CAUX_TRANSACTION_WRITE) {
+               EVENT_LOG_I2CAUX_WRITE(i2caux_request->payload.address_space,
+                                                       engine->ddc->pin_data->en,
+                                                       i2caux_request->payload.address,
+                                                       i2caux_request->status,
+                                                       i2caux_request->payload.length,
+                                                       i2caux_request->payload.data);
+       }
+
+
        return result;
 }