Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright © 2022 Intel Corporation
4 */
5
6#ifndef _XE_GUC_LOG_H_
7#define _XE_GUC_LOG_H_
8
9#include "xe_guc_log_types.h"
10#include "abi/guc_log_abi.h"
11
12struct drm_printer;
13struct xe_device;
14
15#if IS_ENABLED(CONFIG_DRM_XE_DEBUG_GUC)
16#define XE_GUC_LOG_EVENT_DATA_BUFFER_SIZE SZ_16M
17#define XE_GUC_LOG_CRASH_DUMP_BUFFER_SIZE SZ_1M
18#define XE_GUC_LOG_STATE_CAPTURE_BUFFER_SIZE SZ_2M
19#elif IS_ENABLED(CONFIG_DRM_XE_DEBUG)
20#define XE_GUC_LOG_EVENT_DATA_BUFFER_SIZE SZ_8M
21#define XE_GUC_LOG_CRASH_DUMP_BUFFER_SIZE SZ_1M
22#define XE_GUC_LOG_STATE_CAPTURE_BUFFER_SIZE SZ_1M
23#else
24#define XE_GUC_LOG_EVENT_DATA_BUFFER_SIZE SZ_64K
25#define XE_GUC_LOG_CRASH_DUMP_BUFFER_SIZE SZ_16K
26#define XE_GUC_LOG_STATE_CAPTURE_BUFFER_SIZE SZ_1M
27#endif
28
29#define GUC_LOG_SIZE (SZ_4K + \
30 XE_GUC_LOG_EVENT_DATA_BUFFER_SIZE + \
31 XE_GUC_LOG_CRASH_DUMP_BUFFER_SIZE + \
32 XE_GUC_LOG_STATE_CAPTURE_BUFFER_SIZE)
33
34#define XE_GUC_LOG_EVENT_DATA_OFFSET SZ_4K
35#define XE_GUC_LOG_CRASH_DUMP_OFFSET (XE_GUC_LOG_EVENT_DATA_OFFSET + \
36 XE_GUC_LOG_EVENT_DATA_BUFFER_SIZE)
37#define XE_GUC_LOG_STATE_CAPTURE_OFFSET (XE_GUC_LOG_CRASH_DUMP_OFFSET + \
38 XE_GUC_LOG_CRASH_DUMP_BUFFER_SIZE)
39
40/*
41 * While we're using plain log level in i915, GuC controls are much more...
42 * "elaborate"? We have a couple of bits for verbosity, separate bit for actual
43 * log enabling, and separate bit for default logging - which "conveniently"
44 * ignores the enable bit.
45 */
46#define GUC_LOG_LEVEL_DISABLED 0
47#define GUC_LOG_LEVEL_NON_VERBOSE 1
48#define GUC_LOG_LEVEL_IS_ENABLED(x) ((x) > GUC_LOG_LEVEL_DISABLED)
49#define GUC_LOG_LEVEL_IS_VERBOSE(x) ((x) > GUC_LOG_LEVEL_NON_VERBOSE)
50#define GUC_LOG_LEVEL_TO_VERBOSITY(x) ({ \
51 typeof(x) _x = (x); \
52 GUC_LOG_LEVEL_IS_VERBOSE(_x) ? _x - 2 : 0; \
53})
54#define GUC_VERBOSITY_TO_LOG_LEVEL(x) ((x) + 2)
55#define GUC_LOG_LEVEL_MAX GUC_VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX)
56
57int xe_guc_log_init(struct xe_guc_log *log);
58void xe_guc_log_print(struct xe_guc_log *log, struct drm_printer *p);
59void xe_guc_log_print_lfd(struct xe_guc_log *log, struct drm_printer *p);
60void xe_guc_log_print_dmesg(struct xe_guc_log *log);
61struct xe_guc_log_snapshot *xe_guc_log_snapshot_capture(struct xe_guc_log *log, bool atomic);
62void xe_guc_log_snapshot_print(struct xe_guc_log_snapshot *snapshot, struct drm_printer *p);
63void xe_guc_log_snapshot_free(struct xe_guc_log_snapshot *snapshot);
64
65static inline u32
66xe_guc_log_get_level(struct xe_guc_log *log)
67{
68 return log->level;
69}
70
71bool xe_guc_check_log_buf_overflow(struct xe_guc_log *log,
72 enum guc_log_type type,
73 unsigned int full_cnt);
74
75#endif