8ad0152afb
The GuC log buffer sizes had to be configured statically at compile time. This can be quite troublesome when needing to get larger logs out of a released driver. So re-organise the code to allow a boot time module parameter override. Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220728022028.2190627-7-John.C.Harrison@Intel.com
105 lines
3 KiB
C
105 lines
3 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2014-2019 Intel Corporation
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*/
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#ifndef _INTEL_GUC_LOG_H_
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#define _INTEL_GUC_LOG_H_
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#include <linux/mutex.h>
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#include <linux/relay.h>
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#include <linux/workqueue.h>
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#include "intel_guc_fwif.h"
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#include "i915_gem.h"
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struct intel_guc;
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/*
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* While we're using plain log level in i915, GuC controls are much more...
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* "elaborate"? We have a couple of bits for verbosity, separate bit for actual
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* log enabling, and separate bit for default logging - which "conveniently"
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* ignores the enable bit.
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*/
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#define GUC_LOG_LEVEL_DISABLED 0
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#define GUC_LOG_LEVEL_NON_VERBOSE 1
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#define GUC_LOG_LEVEL_IS_ENABLED(x) ((x) > GUC_LOG_LEVEL_DISABLED)
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#define GUC_LOG_LEVEL_IS_VERBOSE(x) ((x) > GUC_LOG_LEVEL_NON_VERBOSE)
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#define GUC_LOG_LEVEL_TO_VERBOSITY(x) ({ \
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typeof(x) _x = (x); \
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GUC_LOG_LEVEL_IS_VERBOSE(_x) ? _x - 2 : 0; \
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})
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#define GUC_VERBOSITY_TO_LOG_LEVEL(x) ((x) + 2)
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#define GUC_LOG_LEVEL_MAX GUC_VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX)
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enum {
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GUC_LOG_SECTIONS_CRASH,
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GUC_LOG_SECTIONS_DEBUG,
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GUC_LOG_SECTIONS_CAPTURE,
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GUC_LOG_SECTIONS_LIMIT
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};
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struct intel_guc_log {
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u32 level;
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/* Allocation settings */
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struct {
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s32 bytes; /* Size in bytes */
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s32 units; /* GuC API units - 1MB or 4KB */
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s32 count; /* Number of API units */
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u32 flag; /* GuC API units flag */
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} sizes[GUC_LOG_SECTIONS_LIMIT];
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bool sizes_initialised;
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/* Combined buffer allocation */
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struct i915_vma *vma;
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void *buf_addr;
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/* RelayFS support */
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struct {
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bool buf_in_use;
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bool started;
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struct work_struct flush_work;
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struct rchan *channel;
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struct mutex lock;
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u32 full_count;
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} relay;
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/* logging related stats */
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struct {
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u32 sampled_overflow;
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u32 overflow;
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u32 flush;
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} stats[GUC_MAX_LOG_BUFFER];
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};
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void intel_guc_log_init_early(struct intel_guc_log *log);
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bool intel_guc_check_log_buf_overflow(struct intel_guc_log *log, enum guc_log_buffer_type type,
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unsigned int full_cnt);
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unsigned int intel_guc_get_log_buffer_size(struct intel_guc_log *log,
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enum guc_log_buffer_type type);
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size_t intel_guc_get_log_buffer_offset(struct intel_guc_log *log, enum guc_log_buffer_type type);
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int intel_guc_log_create(struct intel_guc_log *log);
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void intel_guc_log_destroy(struct intel_guc_log *log);
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int intel_guc_log_set_level(struct intel_guc_log *log, u32 level);
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bool intel_guc_log_relay_created(const struct intel_guc_log *log);
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int intel_guc_log_relay_open(struct intel_guc_log *log);
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int intel_guc_log_relay_start(struct intel_guc_log *log);
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void intel_guc_log_relay_flush(struct intel_guc_log *log);
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void intel_guc_log_relay_close(struct intel_guc_log *log);
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void intel_guc_log_handle_flush_event(struct intel_guc_log *log);
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static inline u32 intel_guc_log_get_level(struct intel_guc_log *log)
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{
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return log->level;
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}
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void intel_guc_log_info(struct intel_guc_log *log, struct drm_printer *p);
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int intel_guc_log_dump(struct intel_guc_log *log, struct drm_printer *p,
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bool dump_load_err);
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u32 intel_guc_log_section_size_capture(struct intel_guc_log *log);
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#endif
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