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1/* SPDX-License-Identifier: MIT */2/*3 * Copyright © 2014-2019 Intel Corporation4 */5 6#ifndef _INTEL_GUC_LOG_H_7#define _INTEL_GUC_LOG_H_8 9#include <linux/mutex.h>10#include <linux/relay.h>11#include <linux/workqueue.h>12 13#include "intel_guc_fwif.h"14#include "i915_gem.h"15 16struct intel_guc;17 18/*19 * While we're using plain log level in i915, GuC controls are much more...20 * "elaborate"? We have a couple of bits for verbosity, separate bit for actual21 * log enabling, and separate bit for default logging - which "conveniently"22 * ignores the enable bit.23 */24#define GUC_LOG_LEVEL_DISABLED 025#define GUC_LOG_LEVEL_NON_VERBOSE 126#define GUC_LOG_LEVEL_IS_ENABLED(x) ((x) > GUC_LOG_LEVEL_DISABLED)27#define GUC_LOG_LEVEL_IS_VERBOSE(x) ((x) > GUC_LOG_LEVEL_NON_VERBOSE)28#define GUC_LOG_LEVEL_TO_VERBOSITY(x) ({ \29 typeof(x) _x = (x); \30 GUC_LOG_LEVEL_IS_VERBOSE(_x) ? _x - 2 : 0; \31})32#define GUC_VERBOSITY_TO_LOG_LEVEL(x) ((x) + 2)33#define GUC_LOG_LEVEL_MAX GUC_VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX)34 35enum {36 GUC_LOG_SECTIONS_CRASH,37 GUC_LOG_SECTIONS_DEBUG,38 GUC_LOG_SECTIONS_CAPTURE,39 GUC_LOG_SECTIONS_LIMIT40};41 42struct intel_guc_log {43 u32 level;44 45 /* Allocation settings */46 struct {47 s32 bytes; /* Size in bytes */48 s32 units; /* GuC API units - 1MB or 4KB */49 s32 count; /* Number of API units */50 u32 flag; /* GuC API units flag */51 } sizes[GUC_LOG_SECTIONS_LIMIT];52 bool sizes_initialised;53 54 /* Combined buffer allocation */55 struct i915_vma *vma;56 void *buf_addr;57 58 /* RelayFS support */59 struct {60 bool buf_in_use;61 bool started;62 struct work_struct flush_work;63 struct rchan *channel;64 struct mutex lock;65 u32 full_count;66 } relay;67 68 /* logging related stats */69 struct {70 u32 sampled_overflow;71 u32 overflow;72 u32 flush;73 } stats[GUC_MAX_LOG_BUFFER];74};75 76void intel_guc_log_init_early(struct intel_guc_log *log);77bool intel_guc_check_log_buf_overflow(struct intel_guc_log *log, enum guc_log_buffer_type type,78 unsigned int full_cnt);79unsigned int intel_guc_get_log_buffer_size(struct intel_guc_log *log,80 enum guc_log_buffer_type type);81size_t intel_guc_get_log_buffer_offset(struct intel_guc_log *log, enum guc_log_buffer_type type);82int intel_guc_log_create(struct intel_guc_log *log);83void intel_guc_log_destroy(struct intel_guc_log *log);84 85int intel_guc_log_set_level(struct intel_guc_log *log, u32 level);86bool intel_guc_log_relay_created(const struct intel_guc_log *log);87int intel_guc_log_relay_open(struct intel_guc_log *log);88int intel_guc_log_relay_start(struct intel_guc_log *log);89void intel_guc_log_relay_flush(struct intel_guc_log *log);90void intel_guc_log_relay_close(struct intel_guc_log *log);91 92void intel_guc_log_handle_flush_event(struct intel_guc_log *log);93 94static inline u32 intel_guc_log_get_level(struct intel_guc_log *log)95{96 return log->level;97}98 99void intel_guc_log_info(struct intel_guc_log *log, struct drm_printer *p);100int intel_guc_log_dump(struct intel_guc_log *log, struct drm_printer *p,101 bool dump_load_err);102 103u32 intel_guc_log_section_size_capture(struct intel_guc_log *log);104 105#endif106