linux/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h

/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2014-2019 Intel Corporation
 */

#ifndef _INTEL_GUC_LOG_H_
#define _INTEL_GUC_LOG_H_

#include <linux/mutex.h>
#include <linux/relay.h>
#include <linux/workqueue.h>

#include "intel_guc_fwif.h"
#include "i915_gem.h"

struct intel_guc;

/*
 * While we're using plain log level in i915, GuC controls are much more...
 * "elaborate"? We have a couple of bits for verbosity, separate bit for actual
 * log enabling, and separate bit for default logging - which "conveniently"
 * ignores the enable bit.
 */
#define GUC_LOG_LEVEL_DISABLED …
#define GUC_LOG_LEVEL_NON_VERBOSE …
#define GUC_LOG_LEVEL_IS_ENABLED(x) …
#define GUC_LOG_LEVEL_IS_VERBOSE(x) …
#define GUC_LOG_LEVEL_TO_VERBOSITY(x) …
#define GUC_VERBOSITY_TO_LOG_LEVEL(x) …
#define GUC_LOG_LEVEL_MAX …

enum { … };

struct intel_guc_log { … };

void intel_guc_log_init_early(struct intel_guc_log *log);
bool intel_guc_check_log_buf_overflow(struct intel_guc_log *log, enum guc_log_buffer_type type,
				      unsigned int full_cnt);
unsigned int intel_guc_get_log_buffer_size(struct intel_guc_log *log,
					   enum guc_log_buffer_type type);
size_t intel_guc_get_log_buffer_offset(struct intel_guc_log *log, enum guc_log_buffer_type type);
int intel_guc_log_create(struct intel_guc_log *log);
void intel_guc_log_destroy(struct intel_guc_log *log);

int intel_guc_log_set_level(struct intel_guc_log *log, u32 level);
bool intel_guc_log_relay_created(const struct intel_guc_log *log);
int intel_guc_log_relay_open(struct intel_guc_log *log);
int intel_guc_log_relay_start(struct intel_guc_log *log);
void intel_guc_log_relay_flush(struct intel_guc_log *log);
void intel_guc_log_relay_close(struct intel_guc_log *log);

void intel_guc_log_handle_flush_event(struct intel_guc_log *log);

static inline u32 intel_guc_log_get_level(struct intel_guc_log *log)
{ … }

void intel_guc_log_info(struct intel_guc_log *log, struct drm_printer *p);
int intel_guc_log_dump(struct intel_guc_log *log, struct drm_printer *p,
		       bool dump_load_err);

u32 intel_guc_log_section_size_capture(struct intel_guc_log *log);

#endif