PipeWire: spa/support/cpu.h Source File

PipeWire 0.3.51

cpu.h
Go to the documentation of this file.
1/* Simple Plugin API
2 *
3 * Copyright © 2018 Wim Taymans
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 (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24
25#ifndef SPA_CPU_H
26#define SPA_CPU_H
27
28#ifdef __cplusplus
29extern "C" {
30#endif
31
32#include <stdarg.h>
33
34#include <spa/utils/defs.h>
35#include <spa/utils/hook.h>
36
49#define SPA_TYPE_INTERFACE_CPU SPA_TYPE_INFO_INTERFACE_BASE "CPU"
50
51#define SPA_VERSION_CPU 0
52struct spa_cpu { struct spa_interface iface; };
53
54/* x86 specific */
55#define SPA_CPU_FLAG_MMX (1<<0)
56#define SPA_CPU_FLAG_MMXEXT (1<<1)
57#define SPA_CPU_FLAG_3DNOW (1<<2)
58#define SPA_CPU_FLAG_SSE (1<<3)
59#define SPA_CPU_FLAG_SSE2 (1<<4)
60#define SPA_CPU_FLAG_3DNOWEXT (1<<5)
61#define SPA_CPU_FLAG_SSE3 (1<<6)
62#define SPA_CPU_FLAG_SSSE3 (1<<7)
63#define SPA_CPU_FLAG_SSE41 (1<<8)
64#define SPA_CPU_FLAG_SSE42 (1<<9)
65#define SPA_CPU_FLAG_AESNI (1<<10)
66#define SPA_CPU_FLAG_AVX (1<<11)
67#define SPA_CPU_FLAG_XOP (1<<12)
68#define SPA_CPU_FLAG_FMA4 (1<<13)
69#define SPA_CPU_FLAG_CMOV (1<<14)
70#define SPA_CPU_FLAG_AVX2 (1<<15)
71#define SPA_CPU_FLAG_FMA3 (1<<16)
72#define SPA_CPU_FLAG_BMI1 (1<<17)
73#define SPA_CPU_FLAG_BMI2 (1<<18)
74#define SPA_CPU_FLAG_AVX512 (1<<19)
75#define SPA_CPU_FLAG_SLOW_UNALIGNED (1<<20)
77/* PPC specific */
78#define SPA_CPU_FLAG_ALTIVEC (1<<0)
79#define SPA_CPU_FLAG_VSX (1<<1)
80#define SPA_CPU_FLAG_POWER8 (1<<2)
82/* ARM specific */
83#define SPA_CPU_FLAG_ARMV5TE (1 << 0)
84#define SPA_CPU_FLAG_ARMV6 (1 << 1)
85#define SPA_CPU_FLAG_ARMV6T2 (1 << 2)
86#define SPA_CPU_FLAG_VFP (1 << 3)
87#define SPA_CPU_FLAG_VFPV3 (1 << 4)
88#define SPA_CPU_FLAG_NEON (1 << 5)
89#define SPA_CPU_FLAG_ARMV8 (1 << 6)
90
91#define SPA_CPU_FORCE_AUTODETECT ((uint32_t)-1)
92
93#define SPA_CPU_VM_NONE (0)
94#define SPA_CPU_VM_OTHER (1 << 0)
95#define SPA_CPU_VM_KVM (1 << 1)
96#define SPA_CPU_VM_QEMU (1 << 2)
97#define SPA_CPU_VM_BOCHS (1 << 3)
98#define SPA_CPU_VM_XEN (1 << 4)
99#define SPA_CPU_VM_UML (1 << 5)
100#define SPA_CPU_VM_VMWARE (1 << 6)
101#define SPA_CPU_VM_ORACLE (1 << 7)
102#define SPA_CPU_VM_MICROSOFT (1 << 8)
103#define SPA_CPU_VM_ZVM (1 << 9)
104#define SPA_CPU_VM_PARALLELS (1 << 10)
105#define SPA_CPU_VM_BHYVE (1 << 11)
106#define SPA_CPU_VM_QNX (1 << 12)
107#define SPA_CPU_VM_ACRN (1 << 13)
108#define SPA_CPU_VM_POWERVM (1 << 14)
109
113struct spa_cpu_methods {
116#define SPA_VERSION_CPU_METHODS 2
117 uint32_t version;
118
120 uint32_t (*get_flags) (void *object);
121
123 int (*force_flags) (void *object, uint32_t flags);
124
126 uint32_t (*get_count) (void *object);
127
129 uint32_t (*get_max_align) (void *object);
130
131 /* check if running in a VM. Since:1 */
132 uint32_t (*get_vm_type) (void *object);
133
134 /* denormals will be handled as zero, either with FTZ or DAZ.
135 * Since:2 */
136 int (*zero_denormals) (void *object, bool enable);
137};
138
139#define spa_cpu_method(o,method,version,...) \
140({ \
141 int _res = -ENOTSUP; \
142 struct spa_cpu *_c = o; \
143 spa_interface_call_res(&_c->iface, \
144 struct spa_cpu_methods, _res, \
145 method, version, ##__VA_ARGS__); \
146 _res; \
147})
148#define spa_cpu_get_flags(c) spa_cpu_method(c, get_flags, 0)
149#define spa_cpu_force_flags(c,f) spa_cpu_method(c, force_flags, 0, f)
150#define spa_cpu_get_count(c) spa_cpu_method(c, get_count, 0)
151#define spa_cpu_get_max_align(c) spa_cpu_method(c, get_max_align, 0)
152#define spa_cpu_get_vm_type(c) spa_cpu_method(c, get_vm_type, 1)
153#define spa_cpu_zero_denormals(c,e) spa_cpu_method(c, zero_denormals, 2, e)
154
156#define SPA_KEY_CPU_FORCE "cpu.force"
157#define SPA_KEY_CPU_VM_TYPE "cpu.vm.type"
158#define SPA_KEY_CPU_ZERO_DENORMALS "cpu.zero.denormals"
164#ifdef __cplusplus
165} /* extern "C" */
166#endif
167
168#endif /* SPA_CPU_H */
defs.h
spa/utils/defs.h
hook.h
spa/utils/hook.h
spa_cpu_methods
methods
Definition: cpu.h:168
spa_cpu_methods::get_max_align
uint32_t(* get_max_align)(void *object)
get maximum required alignment of data
Definition: cpu.h:185
spa_cpu_methods::force_flags
int(* force_flags)(void *object, uint32_t flags)
force CPU flags, use SPA_CPU_FORCE_AUTODETECT to autodetect CPU flags
Definition: cpu.h:179
spa_cpu_methods::get_count
uint32_t(* get_count)(void *object)
get number of CPU cores
Definition: cpu.h:182
spa_cpu_methods::get_flags
uint32_t(* get_flags)(void *object)
get CPU flags
Definition: cpu.h:176
spa_cpu_methods::zero_denormals
int(* zero_denormals)(void *object, bool enable)
Definition: cpu.h:192
spa_cpu_methods::get_vm_type
uint32_t(* get_vm_type)(void *object)
Definition: cpu.h:188
spa_cpu_methods::version
uint32_t version
Definition: cpu.h:173
spa_cpu
Definition: cpu.h:59
spa_cpu::iface
struct spa_interface iface
Definition: cpu.h:59
spa_interface
Definition: hook.h:158