Brooklyn/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
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2022-03-15 21:13:23 +05:00

85 lines
2.3 KiB
C

/* 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;
#ifdef CONFIG_DRM_I915_DEBUG_GUC
#define CRASH_BUFFER_SIZE SZ_2M
#define DEBUG_BUFFER_SIZE SZ_16M
#else
#define CRASH_BUFFER_SIZE SZ_8K
#define DEBUG_BUFFER_SIZE SZ_64K
#endif
/*
* 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 0
#define GUC_LOG_LEVEL_NON_VERBOSE 1
#define GUC_LOG_LEVEL_IS_ENABLED(x) ((x) > GUC_LOG_LEVEL_DISABLED)
#define GUC_LOG_LEVEL_IS_VERBOSE(x) ((x) > GUC_LOG_LEVEL_NON_VERBOSE)
#define GUC_LOG_LEVEL_TO_VERBOSITY(x) ({ \
typeof(x) _x = (x); \
GUC_LOG_LEVEL_IS_VERBOSE(_x) ? _x - 2 : 0; \
})
#define GUC_VERBOSITY_TO_LOG_LEVEL(x) ((x) + 2)
#define GUC_LOG_LEVEL_MAX GUC_VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX)
struct intel_guc_log {
u32 level;
struct i915_vma *vma;
struct {
void *buf_addr;
bool started;
struct work_struct flush_work;
struct rchan *channel;
struct mutex lock;
u32 full_count;
} relay;
/* logging related stats */
struct {
u32 sampled_overflow;
u32 overflow;
u32 flush;
} stats[GUC_MAX_LOG_BUFFER];
};
void intel_guc_log_init_early(struct intel_guc_log *log);
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)
{
return log->level;
}
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);
#endif