1 /**************************************************************************
2 *
3 * Copyright (C) 2019 Chromium.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included
13 * in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 **************************************************************************/
24
25 #ifndef VIRGL_UTIL_H
26 #define VIRGL_UTIL_H
27
28 #include <stdint.h>
29 #include <stdbool.h>
30
31 #ifdef HAVE_CONFIG_H
32 #include "config.h"
33 #endif
34
35 #define TRACE_WITH_PERFETTO 1
36 #define TRACE_WITH_STDERR 2
37 #define TRACE_WITH_PERCETTO 3
38
39 #define BIT(n) (UINT32_C(1) << (n))
40
has_bit(uint32_t mask,uint32_t bit)41 static inline bool has_bit(uint32_t mask, uint32_t bit)
42 {
43 return !!(mask & bit);
44 }
45
has_bits(uint32_t mask,uint32_t bits)46 static inline bool has_bits(uint32_t mask, uint32_t bits)
47 {
48 return !!((mask & bits) == bits);
49 }
50
is_only_bit(uint32_t mask,uint32_t bit)51 static inline bool is_only_bit(uint32_t mask, uint32_t bit)
52 {
53 return (mask == bit);
54 }
55
56 unsigned hash_func_u32(void *key);
57
58 int compare_func(void *key1, void *key2);
59
60 bool has_eventfd(void);
61 int create_eventfd(unsigned int initval);
62 int write_eventfd(int fd, uint64_t val);
63 void flush_eventfd(int fd);
64
65 #ifdef ENABLE_TRACING
66 void trace_init(void);
67
68 #define TRACE_INIT() trace_init()
69 #define TRACE_FUNC() TRACE_SCOPE(__func__)
70
71 #if ENABLE_TRACING == TRACE_WITH_PERCETTO
72
73 #include <percetto.h>
74
75 #define VIRGL_PERCETTO_CATEGORIES(C, G) \
76 C(virgl, "virglrenderer") \
77 C(virgls, "virglrenderer detailed events", "slow")
78
79 PERCETTO_CATEGORY_DECLARE(VIRGL_PERCETTO_CATEGORIES)
80
81 #define TRACE_SCOPE(SCOPE) TRACE_EVENT(virgl, SCOPE)
82 /* Trace high frequency events (tracing may impact performance). */
83 #define TRACE_SCOPE_SLOW(SCOPE) TRACE_EVENT(virgls, SCOPE)
84
85 #else
86
87 const char *trace_begin(const char *scope);
88 void trace_end(const char **scope);
89
90 #define TRACE_SCOPE(SCOPE) \
91 const char *trace_dummy __attribute__((cleanup (trace_end), unused)) = \
92 trace_begin(SCOPE)
93
94 #define TRACE_SCOPE_SLOW(SCOPE) TRACE_SCOPE(SCOPE)
95
96 #endif /* ENABLE_TRACING == TRACE_WITH_PERCETTO */
97
98 #else
99 #define TRACE_INIT()
100 #define TRACE_FUNC()
101 #define TRACE_SCOPE(SCOPE)
102 #define TRACE_SCOPE_SLOW(SCOPE)
103 #endif /* ENABLE_TRACING */
104
105 #endif /* VIRGL_UTIL_H */
106