path: root/common/recipes-kernel/linux/linux-yocto-4.14.71/4910-drm-amd-display-Convert-remaining-loggers-off-dc_log.patch

From d61f6143e00948ad798ee4f747124addd1988d01 Mon Sep 17 00:00:00 2001
From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date: Tue, 19 Jun 2018 09:58:24 -0400
Subject: [PATCH 4910/5725] drm/amd/display: Convert remaining loggers off
 dc_logger

- Removed dal/dm/dc loggers from linux, switched to kernel prints
- Modified functions that used these directly to use macros
- dc_logger support is completely dropped from Linux

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Raveendra Talabattula <raveendra.talabattula@amd.com>
---
 drivers/gpu/drm/amd/display/TODO                   |   8 +-
 drivers/gpu/drm/amd/display/dc/basics/Makefile     |   2 +-
 .../gpu/drm/amd/display/dc/basics/log_helpers.c    |  71 +---
 drivers/gpu/drm/amd/display/dc/basics/logger.c     | 406 ---------------------
 .../gpu/drm/amd/display/dc/calcs/calcs_logger.h    |   9 +-
 drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c   |   6 +-
 drivers/gpu/drm/amd/display/dc/core/dc.c           |  15 +-
 drivers/gpu/drm/amd/display/dc/core/dc_stream.c    |  23 +-
 drivers/gpu/drm/amd/display/dc/dc_stream.h         |   5 +-
 drivers/gpu/drm/amd/display/dc/dc_types.h          |   2 -
 .../drm/amd/display/dc/dce110/dce110_resource.c    |  34 +-
 .../drm/amd/display/dc/dce112/dce112_resource.c    |  34 +-
 .../gpu/drm/amd/display/include/logger_interface.h | 138 +++----
 drivers/gpu/drm/amd/display/include/logger_types.h |  59 ---
 14 files changed, 99 insertions(+), 713 deletions(-)
 delete mode 100644 drivers/gpu/drm/amd/display/dc/basics/logger.c

diff --git a/drivers/gpu/drm/amd/display/TODO b/drivers/gpu/drm/amd/display/TODO
index 357d5964..a8a6c10 100644
--- a/drivers/gpu/drm/amd/display/TODO
+++ b/drivers/gpu/drm/amd/display/TODO
@@ -97,10 +97,10 @@ share it with drivers. But that's a very long term goal, and by far not just an
 issue with DC - other drivers, especially around DP sink handling, are equally
 guilty.
 
-19. The DC logger is still a rather sore thing, but I know that the DRM_DEBUG
-stuff just isn't up to the challenges either. We need to figure out something
-that integrates better with DRM and linux debug printing, while not being
-useless with filtering output. dynamic debug printing might be an option.
+19. DONE - The DC logger is still a rather sore thing, but I know that the
+DRM_DEBUG stuff just isn't up to the challenges either. We need to figure out
+something that integrates better with DRM and linux debug printing, while not
+being useless with filtering output. dynamic debug printing might be an option.
 
 20. Use kernel i2c device to program HDMI retimer. Some boards have an HDMI
 retimer that we need to program to pass PHY compliance. Currently that's
diff --git a/drivers/gpu/drm/amd/display/dc/basics/Makefile b/drivers/gpu/drm/amd/display/dc/basics/Makefile
index fbf4dbf..ccd94a3 100644
--- a/drivers/gpu/drm/amd/display/dc/basics/Makefile
+++ b/drivers/gpu/drm/amd/display/dc/basics/Makefile
@@ -4,7 +4,7 @@
 # subcomponents.
 
 BASICS = conversion.o fixpt31_32.o \
-	logger.o log_helpers.o vector.o
+	log_helpers.o vector.o
 
 AMD_DAL_BASICS = $(addprefix $(AMDDALPATH)/dc/basics/,$(BASICS))
 
diff --git a/drivers/gpu/drm/amd/display/dc/basics/log_helpers.c b/drivers/gpu/drm/amd/display/dc/basics/log_helpers.c
index f6c00a5..26583f3 100644
--- a/drivers/gpu/drm/amd/display/dc/basics/log_helpers.c
+++ b/drivers/gpu/drm/amd/display/dc/basics/log_helpers.c
@@ -28,77 +28,12 @@
 #include "include/logger_interface.h"
 #include "dm_helpers.h"
 
-#define NUM_ELEMENTS(a) (sizeof(a) / sizeof((a)[0]))
-
-struct dc_signal_type_info {
-	enum signal_type type;
-	char name[MAX_NAME_LEN];
-};
-
-static const struct dc_signal_type_info signal_type_info_tbl[] = {
-		{SIGNAL_TYPE_NONE,             "NC"},
-		{SIGNAL_TYPE_DVI_SINGLE_LINK,  "DVI"},
-		{SIGNAL_TYPE_DVI_DUAL_LINK,    "DDVI"},
-		{SIGNAL_TYPE_HDMI_TYPE_A,      "HDMIA"},
-		{SIGNAL_TYPE_LVDS,             "LVDS"},
-		{SIGNAL_TYPE_RGB,              "VGA"},
-		{SIGNAL_TYPE_DISPLAY_PORT,     "DP"},
-		{SIGNAL_TYPE_DISPLAY_PORT_MST, "MST"},
-		{SIGNAL_TYPE_EDP,              "eDP"},
-		{SIGNAL_TYPE_VIRTUAL,          "Virtual"}
-};
-
-void dc_conn_log(struct dc_context *ctx,
-		const struct dc_link *link,
-		uint8_t *hex_data,
-		int hex_data_count,
-		enum dc_log_type event,
-		const char *msg,
-		...)
+void dc_conn_log_hex_linux(const uint8_t *hex_data, int hex_data_count)
 {
 	int i;
-	va_list args;
-	struct log_entry entry = { 0 };
-	enum signal_type signal;
-
-	if (link->local_sink)
-		signal = link->local_sink->sink_signal;
-	else
-		signal = link->connector_signal;
-
-	if (link->type == dc_connection_mst_branch)
-		signal = SIGNAL_TYPE_DISPLAY_PORT_MST;
-
-	dm_logger_open(ctx->logger, &entry, event);
-
-	for (i = 0; i < NUM_ELEMENTS(signal_type_info_tbl); i++)
-		if (signal == signal_type_info_tbl[i].type)
-			break;
-
-	if (i == NUM_ELEMENTS(signal_type_info_tbl))
-		goto fail;
-
-	dm_logger_append_heading(&entry);
-
-	dm_logger_append(&entry, "[%s][ConnIdx:%d] ",
-			signal_type_info_tbl[i].name,
-			link->link_index);
-
-	va_start(args, msg);
-	dm_logger_append_va(&entry, msg, args);
-
-	if (entry.buf_offset > 0 &&
-	    entry.buf[entry.buf_offset - 1] == '\n')
-		entry.buf_offset--;
 
 	if (hex_data)
 		for (i = 0; i < hex_data_count; i++)
-			dm_logger_append(&entry, "%2.2X ", hex_data[i]);
-
-	dm_logger_append(&entry, "^\n");
-
-fail:
-	dm_logger_close(&entry);
-
-	va_end(args);
+			DC_LOG_DEBUG("%2.2X ", hex_data[i]);
 }
+
diff --git a/drivers/gpu/drm/amd/display/dc/basics/logger.c b/drivers/gpu/drm/amd/display/dc/basics/logger.c
deleted file mode 100644
index 733bc5b..0000000
--- a/drivers/gpu/drm/amd/display/dc/basics/logger.c
+++ /dev/null
@@ -1,406 +0,0 @@
-/*
- * Copyright 2012-15 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
- *
- */
-#include "dm_services.h"
-#include "include/logger_interface.h"
-#include "logger.h"
-
-
-#define NUM_ELEMENTS(a) (sizeof(a) / sizeof((a)[0]))
-
-static const struct dc_log_type_info log_type_info_tbl[] = {
-		{LOG_ERROR,                 "Error"},
-		{LOG_WARNING,               "Warning"},
-		{LOG_DEBUG,                 "Debug"},
-		{LOG_DC,                    "DC_Interface"},
-		{LOG_DTN,                   "DTN"},
-		{LOG_SURFACE,               "Surface"},
-		{LOG_HW_HOTPLUG,            "HW_Hotplug"},
-		{LOG_HW_LINK_TRAINING,      "HW_LKTN"},
-		{LOG_HW_SET_MODE,           "HW_Mode"},
-		{LOG_HW_RESUME_S3,          "HW_Resume"},
-		{LOG_HW_AUDIO,              "HW_Audio"},
-		{LOG_HW_HPD_IRQ,            "HW_HPDIRQ"},
-		{LOG_MST,                   "MST"},
-		{LOG_SCALER,                "Scaler"},
-		{LOG_BIOS,                  "BIOS"},
-		{LOG_BANDWIDTH_CALCS,       "BWCalcs"},
-		{LOG_BANDWIDTH_VALIDATION,  "BWValidation"},
-		{LOG_I2C_AUX,               "I2C_AUX"},
-		{LOG_SYNC,                  "Sync"},
-		{LOG_BACKLIGHT,             "Backlight"},
-		{LOG_FEATURE_OVERRIDE,      "Override"},
-		{LOG_DETECTION_EDID_PARSER, "Edid"},
-		{LOG_DETECTION_DP_CAPS,     "DP_Caps"},
-		{LOG_RESOURCE,              "Resource"},
-		{LOG_DML,                   "DML"},
-		{LOG_EVENT_MODE_SET,        "Mode"},
-		{LOG_EVENT_DETECTION,       "Detect"},
-		{LOG_EVENT_LINK_TRAINING,   "LKTN"},
-		{LOG_EVENT_LINK_LOSS,       "LinkLoss"},
-		{LOG_EVENT_UNDERFLOW,       "Underflow"},
-		{LOG_IF_TRACE,              "InterfaceTrace"},
-		{LOG_PERF_TRACE,            "PerfTrace"},
-		{LOG_DISPLAYSTATS,          "DisplayStats"}
-};
-
-
-/* ----------- Object init and destruction ----------- */
-static bool construct(struct dc_context *ctx, struct dal_logger *logger,
-		      uint32_t log_mask)
-{
-	/* malloc buffer and init offsets */
-	logger->log_buffer_size = DAL_LOGGER_BUFFER_MAX_SIZE;
-	logger->log_buffer = kcalloc(logger->log_buffer_size, sizeof(char),
-				     GFP_KERNEL);
-	if (!logger->log_buffer)
-		return false;
-
-	/* Initialize both offsets to start of buffer (empty) */
-	logger->buffer_read_offset = 0;
-	logger->buffer_write_offset = 0;
-
-	logger->open_count = 0;
-
-	logger->flags.bits.ENABLE_CONSOLE = 1;
-	logger->flags.bits.ENABLE_BUFFER = 0;
-
-	logger->ctx = ctx;
-
-	logger->mask = log_mask;
-
-	return true;
-}
-
-static void destruct(struct dal_logger *logger)
-{
-	if (logger->log_buffer) {
-		kfree(logger->log_buffer);
-		logger->log_buffer = NULL;
-	}
-}
-
-struct dal_logger *dal_logger_create(struct dc_context *ctx, uint32_t log_mask)
-{
-	/* malloc struct */
-	struct dal_logger *logger = kzalloc(sizeof(struct dal_logger),
-					    GFP_KERNEL);
-
-	if (!logger)
-		return NULL;
-	if (!construct(ctx, logger, log_mask)) {
-		kfree(logger);
-		return NULL;
-	}
-
-	return logger;
-}
-
-uint32_t dal_logger_destroy(struct dal_logger **logger)
-{
-	if (logger == NULL || *logger == NULL)
-		return 1;
-	destruct(*logger);
-	kfree(*logger);
-	*logger = NULL;
-
-	return 0;
-}
-
-/* ------------------------------------------------------------------------ */
-void dm_logger_append_heading(struct log_entry *entry)
-{
-	int j;
-
-	for (j = 0; j < NUM_ELEMENTS(log_type_info_tbl); j++) {
-
-		const struct dc_log_type_info *info = &log_type_info_tbl[j];
-
-		if (info->type == entry->type)
-			dm_logger_append(entry, "[%s]\t", info->name);
-	}
-}
-
-
-/* Print everything unread existing in log_buffer to debug console*/
-void dm_logger_flush_buffer(struct dal_logger *logger, bool should_warn)
-{
-	char *string_start = &logger->log_buffer[logger->buffer_read_offset];
-
-	if (should_warn)
-		dm_output_to_console(
-			"---------------- FLUSHING LOG BUFFER ----------------\n");
-	while (logger->buffer_read_offset < logger->buffer_write_offset) {
-
-		if (logger->log_buffer[logger->buffer_read_offset] == '\0') {
-			dm_output_to_console("%s", string_start);
-			string_start = logger->log_buffer + logger->buffer_read_offset + 1;
-		}
-		logger->buffer_read_offset++;
-	}
-	if (should_warn)
-		dm_output_to_console(
-			"-------------- END FLUSHING LOG BUFFER --------------\n\n");
-}
-/* ------------------------------------------------------------------------ */
-
-/* Warning: Be careful that 'msg' is null terminated and the total size is
- * less than DAL_LOGGER_BUFFER_MAX_LOG_LINE_SIZE (256) including '\0'
- */
-static bool dal_logger_should_log(
-	struct dal_logger *logger,
-	enum dc_log_type log_type)
-{
-	if (logger->mask & (1 << log_type))
-		return true;
-
-	return false;
-}
-
-static void log_to_debug_console(struct log_entry *entry)
-{
-	struct dal_logger *logger = entry->logger;
-
-	if (logger->flags.bits.ENABLE_CONSOLE == 0)
-		return;
-
-	if (entry->buf_offset) {
-		switch (entry->type) {
-		case LOG_ERROR:
-			dm_error("%s", entry->buf);
-			break;
-		default:
-			dm_output_to_console("%s", entry->buf);
-			break;
-		}
-	}
-}
-
-
-static void log_to_internal_buffer(struct log_entry *entry)
-{
-
-	uint32_t size = entry->buf_offset;
-	struct dal_logger *logger = entry->logger;
-
-	if (logger->flags.bits.ENABLE_BUFFER == 0)
-		return;
-
-	if (logger->log_buffer == NULL)
-		return;
-
-	if (size > 0 && size < logger->log_buffer_size) {
-
-		int buffer_space = logger->log_buffer_size -
-				logger->buffer_write_offset;
-
-		if (logger->buffer_write_offset == logger->buffer_read_offset) {
-			/* Buffer is empty, start writing at beginning */
-			buffer_space = logger->log_buffer_size;
-			logger->buffer_write_offset = 0;
-			logger->buffer_read_offset = 0;
-		}
-
-		if (buffer_space > size) {
-			/* No wrap around, copy 'size' bytes
-			 * from 'entry->buf' to 'log_buffer'
-			 */
-			memmove(logger->log_buffer +
-					logger->buffer_write_offset,
-					entry->buf, size);
-			logger->buffer_write_offset += size;
-
-		} else {
-			/* Not enough room remaining, we should flush
-			 * existing logs */
-
-			/* Flush existing unread logs to console */
-			dm_logger_flush_buffer(logger, true);
-
-			/* Start writing to beginning of buffer */
-			memmove(logger->log_buffer, entry->buf, size);
-			logger->buffer_write_offset = size;
-			logger->buffer_read_offset = 0;
-		}
-
-	}
-}
-
-static void append_entry(
-		struct log_entry *entry,
-		char *buffer,
-		uint32_t buf_size)
-{
-	if (!entry->buf ||
-		entry->buf_offset + buf_size > entry->max_buf_bytes
-	) {
-		BREAK_TO_DEBUGGER();
-		return;
-	}
-
-	/* Todo: check if off by 1 byte due to \0 anywhere */
-	memmove(entry->buf + entry->buf_offset, buffer, buf_size);
-	entry->buf_offset += buf_size;
-}
-
-
-void dm_logger_write(
-	struct dal_logger *logger,
-	enum dc_log_type log_type,
-	const char *msg,
-	...)
-{
-	if (logger && dal_logger_should_log(logger, log_type)) {
-		uint32_t size;
-		va_list args;
-		char buffer[LOG_MAX_LINE_SIZE];
-		struct log_entry entry;
-
-		va_start(args, msg);
-
-		entry.logger = logger;
-
-		entry.buf = buffer;
-
-		entry.buf_offset = 0;
-		entry.max_buf_bytes = DAL_LOGGER_BUFFER_MAX_SIZE * sizeof(char);
-
-		entry.type = log_type;
-
-		dm_logger_append_heading(&entry);
-
-		size = dm_log_to_buffer(
-			buffer, LOG_MAX_LINE_SIZE - 1, msg, args);
-
-		buffer[entry.buf_offset + size] = '\0';
-		entry.buf_offset += size + 1;
-
-		/* --Flush log_entry buffer-- */
-		/* print to kernel console */
-		log_to_debug_console(&entry);
-		/* log internally for dsat */
-		log_to_internal_buffer(&entry);
-
-		va_end(args);
-	}
-}
-
-/* Same as dm_logger_write, except without open() and close(), which must
- * be done separately.
- */
-void dm_logger_append(
-	struct log_entry *entry,
-	const char *msg,
-	...)
-{
-	va_list args;
-
-	va_start(args, msg);
-	dm_logger_append_va(entry, msg, args);
-	va_end(args);
-}
-
-void dm_logger_append_va(
-	struct log_entry *entry,
-	const char *msg,
-	va_list args)
-{
-	struct dal_logger *logger;
-
-	if (!entry) {
-		BREAK_TO_DEBUGGER();
-		return;
-	}
-
-	logger = entry->logger;
-
-	if (logger && logger->open_count > 0 &&
-		dal_logger_should_log(logger, entry->type)) {
-
-		uint32_t size;
-		char buffer[LOG_MAX_LINE_SIZE];
-
-		size = dm_log_to_buffer(
-			buffer, LOG_MAX_LINE_SIZE, msg, args);
-
-		if (size < LOG_MAX_LINE_SIZE - 1) {
-			append_entry(entry, buffer, size);
-		} else {
-			append_entry(entry, "LOG_ERROR, line too long\n", 27);
-		}
-	}
-}
-
-void dm_logger_open(
-		struct dal_logger *logger,
-		struct log_entry *entry, /* out */
-		enum dc_log_type log_type)
-{
-	if (!entry) {
-		BREAK_TO_DEBUGGER();
-		return;
-	}
-
-	entry->type = log_type;
-	entry->logger = logger;
-
-	entry->buf = kzalloc(DAL_LOGGER_BUFFER_MAX_SIZE * sizeof(char),
-			     GFP_KERNEL);
-
-	entry->buf_offset = 0;
-	entry->max_buf_bytes = DAL_LOGGER_BUFFER_MAX_SIZE * sizeof(char);
-
-	logger->open_count++;
-
-	dm_logger_append_heading(entry);
-}
-
-void dm_logger_close(struct log_entry *entry)
-{
-	struct dal_logger *logger = entry->logger;
-
-	if (logger && logger->open_count > 0) {
-		logger->open_count--;
-	} else {
-		BREAK_TO_DEBUGGER();
-		goto cleanup;
-	}
-
-	/* --Flush log_entry buffer-- */
-	/* print to kernel console */
-	log_to_debug_console(entry);
-	/* log internally for dsat */
-	log_to_internal_buffer(entry);
-
-	/* TODO: Write end heading */
-
-cleanup:
-	if (entry->buf) {
-		kfree(entry->buf);
-		entry->buf = NULL;
-		entry->buf_offset = 0;
-		entry->max_buf_bytes = 0;
-	}
-}
-
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/calcs_logger.h b/drivers/gpu/drm/amd/display/dc/calcs/calcs_logger.h
index fc3f98f..62435bf 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/calcs_logger.h
+++ b/drivers/gpu/drm/amd/display/dc/calcs/calcs_logger.h
@@ -25,10 +25,9 @@
 
 #ifndef _CALCS_CALCS_LOGGER_H_
 #define _CALCS_CALCS_LOGGER_H_
-#define DC_LOGGER \
-	logger
+#define DC_LOGGER ctx->logger
 
-static void print_bw_calcs_dceip(struct dal_logger *logger, const struct bw_calcs_dceip *dceip)
+static void print_bw_calcs_dceip(struct dc_context *ctx, const struct bw_calcs_dceip *dceip)
 {
 
 	DC_LOG_BANDWIDTH_CALCS("#####################################################################");
@@ -122,7 +121,7 @@ static void print_bw_calcs_dceip(struct dal_logger *logger, const struct bw_calc
 
 }
 
-static void print_bw_calcs_vbios(struct dal_logger *logger, const struct bw_calcs_vbios *vbios)
+static void print_bw_calcs_vbios(struct dc_context *ctx, const struct bw_calcs_vbios *vbios)
 {
 
 	DC_LOG_BANDWIDTH_CALCS("#####################################################################");
@@ -181,7 +180,7 @@ static void print_bw_calcs_vbios(struct dal_logger *logger, const struct bw_calc
 
 }
 
-static void print_bw_calcs_data(struct dal_logger *logger, struct bw_calcs_data *data)
+static void print_bw_calcs_data(struct dc_context *ctx, struct bw_calcs_data *data)
 {
 
 	int i, j, k;
diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
index 2c4e8f0..160d11a 100644
--- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
@@ -3010,9 +3010,9 @@ bool bw_calcs(struct dc_context *ctx,
 		struct bw_fixed low_yclk = vbios->low_yclk;
 
 		if (ctx->dc->debug.bandwidth_calcs_trace) {
-			print_bw_calcs_dceip(ctx->logger, dceip);
-			print_bw_calcs_vbios(ctx->logger, vbios);
-			print_bw_calcs_data(ctx->logger, data);
+			print_bw_calcs_dceip(ctx, dceip);
+			print_bw_calcs_vbios(ctx, vbios);
+			print_bw_calcs_data(ctx, data);
 		}
 		calculate_bandwidth(dceip, vbios, data);
 
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index b14741d..e9e7953 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -465,9 +465,6 @@ static void destruct(struct dc *dc)
 	if (dc->ctx->created_bios)
 		dal_bios_parser_destroy(&dc->ctx->dc_bios);
 
-	if (dc->ctx->logger)
-		dal_logger_destroy(&dc->ctx->logger);
-
 	kfree(dc->ctx);
 	dc->ctx = NULL;
 
@@ -490,7 +487,6 @@ static void destruct(struct dc *dc)
 static bool construct(struct dc *dc,
 		const struct dc_init_data *init_params)
 {
-	struct dal_logger *logger;
 	struct dc_context *dc_ctx;
 	struct bw_calcs_dceip *dc_dceip;
 	struct bw_calcs_vbios *dc_vbios;
@@ -555,14 +551,7 @@ static bool construct(struct dc *dc,
 	}
 
 	/* Create logger */
-	logger = dal_logger_create(dc_ctx, init_params->log_mask);
 
-	if (!logger) {
-		/* can *not* call logger. call base driver 'print error' */
-		dm_error("%s: failed to create Logger!\n", __func__);
-		goto fail;
-	}
-	dc_ctx->logger = logger;
 	dc_ctx->dce_environment = init_params->dce_environment;
 
 	dc_version = resource_parse_asic_id(init_params->asic_id);
@@ -1007,9 +996,7 @@ bool dc_commit_state(struct dc *dc, struct dc_state *context)
 	for (i = 0; i < context->stream_count; i++) {
 		struct dc_stream_state *stream = context->streams[i];
 
-		dc_stream_log(stream,
-				dc->ctx->logger,
-				LOG_DC);
+		dc_stream_log(dc, stream);
 	}
 
 	result = dc_commit_state_no_check(dc, context);
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
index 3732a1d..0223f48 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c
@@ -30,6 +30,8 @@
 #include "ipp.h"
 #include "timing_generator.h"
 
+#define DC_LOGGER dc->ctx->logger
+
 /*******************************************************************************
  * Private functions
  ******************************************************************************/
@@ -317,16 +319,10 @@ bool dc_stream_get_scanoutpos(const struct dc_stream_state *stream,
 	return ret;
 }
 
-
-void dc_stream_log(
-	const struct dc_stream_state *stream,
-	struct dal_logger *dm_logger,
-	enum dc_log_type log_type)
+void dc_stream_log(const struct dc *dc, const struct dc_stream_state *stream)
 {
-
-	dm_logger_write(dm_logger,
-			log_type,
-			"core_stream 0x%x: src: %d, %d, %d, %d; dst: %d, %d, %d, %d, colorSpace:%d\n",
+	DC_LOG_DC(
+			"core_stream 0x%p: src: %d, %d, %d, %d; dst: %d, %d, %d, %d, colorSpace:%d\n",
 			stream,
 			stream->src.x,
 			stream->src.y,
@@ -337,21 +333,18 @@ void dc_stream_log(
 			stream->dst.width,
 			stream->dst.height,
 			stream->output_color_space);
-	dm_logger_write(dm_logger,
-			log_type,
+	DC_LOG_DC(
 			"\tpix_clk_khz: %d, h_total: %d, v_total: %d, pixelencoder:%d, displaycolorDepth:%d\n",
 			stream->timing.pix_clk_khz,
 			stream->timing.h_total,
 			stream->timing.v_total,
 			stream->timing.pixel_encoding,
 			stream->timing.display_color_depth);
-	dm_logger_write(dm_logger,
-			log_type,
+	DC_LOG_DC(
 			"\tsink name: %s, serial: %d\n",
 			stream->sink->edid_caps.display_name,
 			stream->sink->edid_caps.serial_number);
-	dm_logger_write(dm_logger,
-			log_type,
+	DC_LOG_DC(
 			"\tlink: %d\n",
 			stream->sink->link->link_index);
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index 597c6bf..e7a05d2 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -158,10 +158,7 @@ void dc_commit_updates_for_stream(struct dc *dc,
 /*
  * Log the current stream state.
  */
-void dc_stream_log(
-	const struct dc_stream_state *stream,
-	struct dal_logger *dc_logger,
-	enum dc_log_type log_type);
+void dc_stream_log(const struct dc *dc, const struct dc_stream_state *stream);
 
 uint8_t dc_get_current_stream_count(struct dc *dc);
 struct dc_stream_state *dc_get_stream_at_index(struct dc *dc, uint8_t i);
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 9467249..59bf0d5 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -77,8 +77,6 @@ struct dc_context {
 	struct dc *dc;
 
 	void *driver_context; /* e.g. amdgpu_device */
-
-	struct dal_logger *logger;
 	void *cgs_device;
 
 	enum dce_environment dce_environment;
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
index 3edaa00..1c902e4 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
@@ -794,43 +794,38 @@ static bool dce110_validate_bandwidth(
 
 	if (memcmp(&dc->current_state->bw.dce,
 			&context->bw.dce, sizeof(context->bw.dce))) {
-		struct log_entry log_entry;
-		dm_logger_open(
-			dc->ctx->logger,
-			&log_entry,
-			LOG_BANDWIDTH_CALCS);
-		dm_logger_append(&log_entry, "%s: finish,\n"
+
+		DC_LOG_BANDWIDTH_CALCS(
+			"%s: finish,\n"
+			"nbpMark_b: %d nbpMark_a: %d urgentMark_b: %d urgentMark_a: %d\n"
+			"stutMark_b: %d stutMark_a: %d\n"
 			"nbpMark_b: %d nbpMark_a: %d urgentMark_b: %d urgentMark_a: %d\n"
-			"stutMark_b: %d stutMark_a: %d\n",
+			"stutMark_b: %d stutMark_a: %d\n"
+			"nbpMark_b: %d nbpMark_a: %d urgentMark_b: %d urgentMark_a: %d\n"
+			"stutMark_b: %d stutMark_a: %d stutter_mode_enable: %d\n"
+			"cstate: %d pstate: %d nbpstate: %d sync: %d dispclk: %d\n"
+			"sclk: %d sclk_sleep: %d yclk: %d blackout_recovery_time_us: %d\n"
+			,
 			__func__,
 			context->bw.dce.nbp_state_change_wm_ns[0].b_mark,
 			context->bw.dce.nbp_state_change_wm_ns[0].a_mark,
 			context->bw.dce.urgent_wm_ns[0].b_mark,
 			context->bw.dce.urgent_wm_ns[0].a_mark,
 			context->bw.dce.stutter_exit_wm_ns[0].b_mark,
-			context->bw.dce.stutter_exit_wm_ns[0].a_mark);
-		dm_logger_append(&log_entry,
-			"nbpMark_b: %d nbpMark_a: %d urgentMark_b: %d urgentMark_a: %d\n"
-			"stutMark_b: %d stutMark_a: %d\n",
+			context->bw.dce.stutter_exit_wm_ns[0].a_mark,
 			context->bw.dce.nbp_state_change_wm_ns[1].b_mark,
 			context->bw.dce.nbp_state_change_wm_ns[1].a_mark,
 			context->bw.dce.urgent_wm_ns[1].b_mark,
 			context->bw.dce.urgent_wm_ns[1].a_mark,
 			context->bw.dce.stutter_exit_wm_ns[1].b_mark,
-			context->bw.dce.stutter_exit_wm_ns[1].a_mark);
-		dm_logger_append(&log_entry,
-			"nbpMark_b: %d nbpMark_a: %d urgentMark_b: %d urgentMark_a: %d\n"
-			"stutMark_b: %d stutMark_a: %d stutter_mode_enable: %d\n",
+			context->bw.dce.stutter_exit_wm_ns[1].a_mark,
 			context->bw.dce.nbp_state_change_wm_ns[2].b_mark,
 			context->bw.dce.nbp_state_change_wm_ns[2].a_mark,
 			context->bw.dce.urgent_wm_ns[2].b_mark,
 			context->bw.dce.urgent_wm_ns[2].a_mark,
 			context->bw.dce.stutter_exit_wm_ns[2].b_mark,
 			context->bw.dce.stutter_exit_wm_ns[2].a_mark,
-			context->bw.dce.stutter_mode_enable);
-		dm_logger_append(&log_entry,
-			"cstate: %d pstate: %d nbpstate: %d sync: %d dispclk: %d\n"
-			"sclk: %d sclk_sleep: %d yclk: %d blackout_recovery_time_us: %d\n",
+			context->bw.dce.stutter_mode_enable,
 			context->bw.dce.cpuc_state_change_enable,
 			context->bw.dce.cpup_state_change_enable,
 			context->bw.dce.nbp_state_change_enable,
@@ -840,7 +835,6 @@ static bool dce110_validate_bandwidth(
 			context->bw.dce.sclk_deep_sleep_khz,
 			context->bw.dce.yclk_khz,
 			context->bw.dce.blackout_recovery_time_us);
-		dm_logger_close(&log_entry);
 	}
 	return result;
 }
diff --git a/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c b/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
index 9e1afb1..30d5b32 100644
--- a/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
@@ -744,43 +744,38 @@ bool dce112_validate_bandwidth(
 
 	if (memcmp(&dc->current_state->bw.dce,
 			&context->bw.dce, sizeof(context->bw.dce))) {
-		struct log_entry log_entry;
-		dm_logger_open(
-			dc->ctx->logger,
-			&log_entry,
-			LOG_BANDWIDTH_CALCS);
-		dm_logger_append(&log_entry, "%s: finish,\n"
+
+		DC_LOG_BANDWIDTH_CALCS(
+			"%s: finish,\n"
+			"nbpMark_b: %d nbpMark_a: %d urgentMark_b: %d urgentMark_a: %d\n"
+			"stutMark_b: %d stutMark_a: %d\n"
 			"nbpMark_b: %d nbpMark_a: %d urgentMark_b: %d urgentMark_a: %d\n"
-			"stutMark_b: %d stutMark_a: %d\n",
+			"stutMark_b: %d stutMark_a: %d\n"
+			"nbpMark_b: %d nbpMark_a: %d urgentMark_b: %d urgentMark_a: %d\n"
+			"stutMark_b: %d stutMark_a: %d stutter_mode_enable: %d\n"
+			"cstate: %d pstate: %d nbpstate: %d sync: %d dispclk: %d\n"
+			"sclk: %d sclk_sleep: %d yclk: %d blackout_recovery_time_us: %d\n"
+			,
 			__func__,
 			context->bw.dce.nbp_state_change_wm_ns[0].b_mark,
 			context->bw.dce.nbp_state_change_wm_ns[0].a_mark,
 			context->bw.dce.urgent_wm_ns[0].b_mark,
 			context->bw.dce.urgent_wm_ns[0].a_mark,
 			context->bw.dce.stutter_exit_wm_ns[0].b_mark,
-			context->bw.dce.stutter_exit_wm_ns[0].a_mark);
-		dm_logger_append(&log_entry,
-			"nbpMark_b: %d nbpMark_a: %d urgentMark_b: %d urgentMark_a: %d\n"
-			"stutMark_b: %d stutMark_a: %d\n",
+			context->bw.dce.stutter_exit_wm_ns[0].a_mark,
 			context->bw.dce.nbp_state_change_wm_ns[1].b_mark,
 			context->bw.dce.nbp_state_change_wm_ns[1].a_mark,
 			context->bw.dce.urgent_wm_ns[1].b_mark,
 			context->bw.dce.urgent_wm_ns[1].a_mark,
 			context->bw.dce.stutter_exit_wm_ns[1].b_mark,
-			context->bw.dce.stutter_exit_wm_ns[1].a_mark);
-		dm_logger_append(&log_entry,
-			"nbpMark_b: %d nbpMark_a: %d urgentMark_b: %d urgentMark_a: %d\n"
-			"stutMark_b: %d stutMark_a: %d stutter_mode_enable: %d\n",
+			context->bw.dce.stutter_exit_wm_ns[1].a_mark,
 			context->bw.dce.nbp_state_change_wm_ns[2].b_mark,
 			context->bw.dce.nbp_state_change_wm_ns[2].a_mark,
 			context->bw.dce.urgent_wm_ns[2].b_mark,
 			context->bw.dce.urgent_wm_ns[2].a_mark,
 			context->bw.dce.stutter_exit_wm_ns[2].b_mark,
 			context->bw.dce.stutter_exit_wm_ns[2].a_mark,
-			context->bw.dce.stutter_mode_enable);
-		dm_logger_append(&log_entry,
-			"cstate: %d pstate: %d nbpstate: %d sync: %d dispclk: %d\n"
-			"sclk: %d sclk_sleep: %d yclk: %d blackout_recovery_time_us: %d\n",
+			context->bw.dce.stutter_mode_enable,
 			context->bw.dce.cpuc_state_change_enable,
 			context->bw.dce.cpup_state_change_enable,
 			context->bw.dce.nbp_state_change_enable,
@@ -790,7 +785,6 @@ bool dce112_validate_bandwidth(
 			context->bw.dce.sclk_deep_sleep_khz,
 			context->bw.dce.yclk_khz,
 			context->bw.dce.blackout_recovery_time_us);
-		dm_logger_close(&log_entry);
 	}
 	return result;
 }
diff --git a/drivers/gpu/drm/amd/display/include/logger_interface.h b/drivers/gpu/drm/amd/display/include/logger_interface.h
index 0f10ed7..e3c7961 100644
--- a/drivers/gpu/drm/amd/display/include/logger_interface.h
+++ b/drivers/gpu/drm/amd/display/include/logger_interface.h
@@ -40,49 +40,7 @@ struct dc_state;
  *
  */
 
-struct dal_logger *dal_logger_create(struct dc_context *ctx, uint32_t log_mask);
-
-uint32_t dal_logger_destroy(struct dal_logger **logger);
-
-void dm_logger_flush_buffer(struct dal_logger *logger, bool should_warn);
-
-void dm_logger_write(
-		struct dal_logger *logger,
-		enum dc_log_type log_type,
-		const char *msg,
-		...);
-
-void dm_logger_append(
-		struct log_entry *entry,
-		const char *msg,
-		...);
-
-void dm_logger_append_va(
-		struct log_entry *entry,
-		const char *msg,
-		va_list args);
-
-void dm_logger_append_heading(struct log_entry *entry);
-
-void dm_logger_open(
-		struct dal_logger *logger,
-		struct log_entry *entry,
-		enum dc_log_type log_type);
-
-void dm_logger_close(struct log_entry *entry);
-
-void dc_conn_log(struct dc_context *ctx,
-		const struct dc_link *link,
-		uint8_t *hex_data,
-		int hex_data_count,
-		enum dc_log_type event,
-		const char *msg,
-		...);
-
-void logger_write(struct dal_logger *logger,
-		enum dc_log_type log_type,
-		const char *msg,
-		void *paralist);
+void dc_conn_log_hex_linux(const uint8_t *hex_data, int hex_data_count);
 
 void pre_surface_trace(
 		struct dc *dc,
@@ -108,28 +66,31 @@ void context_clock_trace(
  * marked by this macro.
  * Note that the message will be printed exactly once for every function
  * it is used in order to avoid repeating of the same message. */
+
 #define DAL_LOGGER_NOT_IMPL(fmt, ...) \
-{ \
-	static bool print_not_impl = true; \
-\
-	if (print_not_impl == true) { \
-		print_not_impl = false; \
-		dm_logger_write(ctx->logger, LOG_WARNING, \
-		"DAL_NOT_IMPL: " fmt, ##__VA_ARGS__); \
-	} \
-}
+	do { \
+		static bool print_not_impl = true; \
+		if (print_not_impl == true) { \
+			print_not_impl = false; \
+			DRM_WARN("DAL_NOT_IMPL: " fmt, ##__VA_ARGS__); \
+		} \
+	} while (0)
 
 /******************************************************************************
  * Convenience macros to save on typing.
  *****************************************************************************/
 
 #define DC_ERROR(...) \
-	dm_logger_write(dc_ctx->logger, LOG_ERROR, \
-		__VA_ARGS__)
+		do { \
+			(void)(dc_ctx); \
+			DC_LOG_ERROR(__VA_ARGS__); \
+		} while (0)
 
 #define DC_SYNC_INFO(...) \
-	dm_logger_write(dc_ctx->logger, LOG_SYNC, \
-		__VA_ARGS__)
+		do { \
+			(void)(dc_ctx); \
+			DC_LOG_SYNC(__VA_ARGS__); \
+		} while (0)
 
 /* Connectivity log format:
  * [time stamp]   [drm] [Major_minor] [connector name] message.....
@@ -139,20 +100,30 @@ void context_clock_trace(
  */
 
 #define CONN_DATA_DETECT(link, hex_data, hex_len, ...) \
-		dc_conn_log(link->ctx, link, hex_data, hex_len, \
-				LOG_EVENT_DETECTION, ##__VA_ARGS__)
+		do { \
+			(void)(link); \
+			dc_conn_log_hex_linux(hex_data, hex_len); \
+			DC_LOG_EVENT_DETECTION(__VA_ARGS__); \
+		} while (0)
 
 #define CONN_DATA_LINK_LOSS(link, hex_data, hex_len, ...) \
-		dc_conn_log(link->ctx, link, hex_data, hex_len, \
-				LOG_EVENT_LINK_LOSS, ##__VA_ARGS__)
+		do { \
+			(void)(link); \
+			dc_conn_log_hex_linux(hex_data, hex_len); \
+			DC_LOG_EVENT_LINK_LOSS(__VA_ARGS__); \
+		} while (0)
 
 #define CONN_MSG_LT(link, ...) \
-		dc_conn_log(link->ctx, link, NULL, 0, \
-				LOG_EVENT_LINK_TRAINING, ##__VA_ARGS__)
+		do { \
+			(void)(link); \
+			DC_LOG_EVENT_LINK_TRAINING(__VA_ARGS__); \
+		} while (0)
 
 #define CONN_MSG_MODE(link, ...) \
-		dc_conn_log(link->ctx, link, NULL, 0, \
-				LOG_EVENT_MODE_SET, ##__VA_ARGS__)
+		do { \
+			(void)(link); \
+			DC_LOG_EVENT_MODE_SET(__VA_ARGS__); \
+		} while (0)
 
 /*
  * Display Test Next logging
@@ -167,38 +138,21 @@ void context_clock_trace(
 	dm_dtn_log_end(dc_ctx)
 
 #define PERFORMANCE_TRACE_START() \
-	unsigned long long perf_trc_start_stmp = dm_get_timestamp(dc->ctx); \
-	unsigned long long perf_trc_start_log_msk = dc->ctx->logger->mask; \
-	unsigned int perf_trc_start_log_flags = dc->ctx->logger->flags.value; \
-	if (dc->debug.performance_trace) {\
-		dm_logger_flush_buffer(dc->ctx->logger, false);\
-		dc->ctx->logger->mask = 1<<LOG_PERF_TRACE;\
-		dc->ctx->logger->flags.bits.ENABLE_CONSOLE = 0;\
-		dc->ctx->logger->flags.bits.ENABLE_BUFFER = 1;\
-	}
-
-#define PERFORMANCE_TRACE_END() do {\
-	unsigned long long perf_trc_end_stmp = dm_get_timestamp(dc->ctx);\
-	if (dc->debug.performance_trace) {\
-		dm_logger_write(dc->ctx->logger, \
-				LOG_PERF_TRACE, \
-				"%s duration: %d ticks\n", __func__,\
+	unsigned long long perf_trc_start_stmp = dm_get_timestamp(dc->ctx)
+
+#define PERFORMANCE_TRACE_END() \
+	do { \
+		unsigned long long perf_trc_end_stmp = dm_get_timestamp(dc->ctx); \
+		if (dc->debug.performance_trace) { \
+			DC_LOG_PERF_TRACE("%s duration: %lld ticks\n", __func__, \
 				perf_trc_end_stmp - perf_trc_start_stmp); \
-		if (perf_trc_start_log_msk != 1<<LOG_PERF_TRACE) {\
-			dc->ctx->logger->mask = perf_trc_start_log_msk;\
-			dc->ctx->logger->flags.value = perf_trc_start_log_flags;\
-			dm_logger_flush_buffer(dc->ctx->logger, false);\
 		} \
-	} \
-} while (0)
+	} while (0)
 
-#define DISPLAY_STATS_BEGIN(entry) \
-	dm_logger_open(dc->ctx->logger, &entry, LOG_DISPLAYSTATS)
+#define DISPLAY_STATS_BEGIN(entry) (void)(entry)
 
-#define DISPLAY_STATS(msg, ...) \
-	dm_logger_append(&log_entry, msg, ##__VA_ARGS__)
+#define DISPLAY_STATS(msg, ...) DC_LOG_PERF_TRACE(msg, __VA_ARGS__)
 
-#define DISPLAY_STATS_END(entry) \
-	dm_logger_close(&entry)
+#define DISPLAY_STATS_END(entry) (void)(entry)
 
 #endif /* __DAL_LOGGER_INTERFACE_H__ */
diff --git a/drivers/gpu/drm/amd/display/include/logger_types.h b/drivers/gpu/drm/amd/display/include/logger_types.h
index 0a540b9..ad3695e 100644
--- a/drivers/gpu/drm/amd/display/include/logger_types.h
+++ b/drivers/gpu/drm/amd/display/include/logger_types.h
@@ -138,63 +138,4 @@ enum dc_log_type {
 		(1 << LOG_HW_AUDIO)| \
 		(1 << LOG_BANDWIDTH_CALCS)*/
 
-union logger_flags {
-	struct {
-		uint32_t ENABLE_CONSOLE:1; /* Print to console */
-		uint32_t ENABLE_BUFFER:1; /* Print to buffer */
-		uint32_t RESERVED:30;
-	} bits;
-	uint32_t value;
-};
-
-struct log_entry {
-	struct dal_logger *logger;
-	enum dc_log_type type;
-
-	char *buf;
-	uint32_t buf_offset;
-	uint32_t max_buf_bytes;
-};
-
-/**
-* Structure for enumerating log types
-*/
-struct dc_log_type_info {
-	enum dc_log_type type;
-	char name[MAX_NAME_LEN];
-};
-
-/* Structure for keeping track of offsets, buffer, etc */
-
-#define DAL_LOGGER_BUFFER_MAX_SIZE 2048
-
-/*Connectivity log needs to output EDID, which needs at lease 256x3 bytes,
- * change log line size to 896 to meet the request.
- */
-#define LOG_MAX_LINE_SIZE 896
-
-struct dal_logger {
-
-	/* How far into the circular buffer has been read by dsat
-	 * Read offset should never cross write offset. Write \0's to
-	 * read data just to be sure?
-	 */
-	uint32_t buffer_read_offset;
-
-	/* How far into the circular buffer we have written
-	 * Write offset should never cross read offset
-	 */
-	uint32_t buffer_write_offset;
-
-	uint32_t open_count;
-
-	char *log_buffer;	/* Pointer to malloc'ed buffer */
-	uint32_t log_buffer_size; /* Size of circular buffer */
-
-	uint32_t mask; /*array of masks for major elements*/
-
-	union logger_flags flags;
-	struct dc_context *ctx;
-};
-
 #endif /* __DAL_LOGGER_TYPES_H__ */
-- 
2.7.4