PipeWire 1.3.0
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cpu.h
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1/* Simple Plugin API */
2/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
3/* SPDX-License-Identifier: MIT */
4
5#ifndef SPA_CPU_H
6#define SPA_CPU_H
7
8#ifdef __cplusplus
9extern "C" {
10#endif
11
12#include <stdarg.h>
13
14#include <spa/utils/defs.h>
15#include <spa/utils/hook.h>
16
29#define SPA_TYPE_INTERFACE_CPU SPA_TYPE_INFO_INTERFACE_BASE "CPU"
30
31#define SPA_VERSION_CPU 0
32struct spa_cpu { struct spa_interface iface; };
33
34/* x86 specific */
35#define SPA_CPU_FLAG_MMX (1<<0)
36#define SPA_CPU_FLAG_MMXEXT (1<<1)
37#define SPA_CPU_FLAG_3DNOW (1<<2)
38#define SPA_CPU_FLAG_SSE (1<<3)
39#define SPA_CPU_FLAG_SSE2 (1<<4)
40#define SPA_CPU_FLAG_3DNOWEXT (1<<5)
41#define SPA_CPU_FLAG_SSE3 (1<<6)
42#define SPA_CPU_FLAG_SSSE3 (1<<7)
43#define SPA_CPU_FLAG_SSE41 (1<<8)
44#define SPA_CPU_FLAG_SSE42 (1<<9)
45#define SPA_CPU_FLAG_AESNI (1<<10)
46#define SPA_CPU_FLAG_AVX (1<<11)
47#define SPA_CPU_FLAG_XOP (1<<12)
48#define SPA_CPU_FLAG_FMA4 (1<<13)
49#define SPA_CPU_FLAG_CMOV (1<<14)
50#define SPA_CPU_FLAG_AVX2 (1<<15)
51#define SPA_CPU_FLAG_FMA3 (1<<16)
52#define SPA_CPU_FLAG_BMI1 (1<<17)
53#define SPA_CPU_FLAG_BMI2 (1<<18)
54#define SPA_CPU_FLAG_AVX512 (1<<19)
55#define SPA_CPU_FLAG_SLOW_UNALIGNED (1<<20)
57/* PPC specific */
58#define SPA_CPU_FLAG_ALTIVEC (1<<0)
59#define SPA_CPU_FLAG_VSX (1<<1)
60#define SPA_CPU_FLAG_POWER8 (1<<2)
62/* ARM specific */
63#define SPA_CPU_FLAG_ARMV5TE (1 << 0)
64#define SPA_CPU_FLAG_ARMV6 (1 << 1)
65#define SPA_CPU_FLAG_ARMV6T2 (1 << 2)
66#define SPA_CPU_FLAG_VFP (1 << 3)
67#define SPA_CPU_FLAG_VFPV3 (1 << 4)
68#define SPA_CPU_FLAG_NEON (1 << 5)
69#define SPA_CPU_FLAG_ARMV8 (1 << 6)
70
71/* RISCV specific */
72#define SPA_CPU_FLAG_RISCV_V (1 << 0)
74#define SPA_CPU_FORCE_AUTODETECT ((uint32_t)-1)
76#define SPA_CPU_VM_NONE (0)
77#define SPA_CPU_VM_OTHER (1 << 0)
78#define SPA_CPU_VM_KVM (1 << 1)
79#define SPA_CPU_VM_QEMU (1 << 2)
80#define SPA_CPU_VM_BOCHS (1 << 3)
81#define SPA_CPU_VM_XEN (1 << 4)
82#define SPA_CPU_VM_UML (1 << 5)
83#define SPA_CPU_VM_VMWARE (1 << 6)
84#define SPA_CPU_VM_ORACLE (1 << 7)
85#define SPA_CPU_VM_MICROSOFT (1 << 8)
86#define SPA_CPU_VM_ZVM (1 << 9)
87#define SPA_CPU_VM_PARALLELS (1 << 10)
88#define SPA_CPU_VM_BHYVE (1 << 11)
89#define SPA_CPU_VM_QNX (1 << 12)
90#define SPA_CPU_VM_ACRN (1 << 13)
91#define SPA_CPU_VM_POWERVM (1 << 14)
92
93static inline const char *spa_cpu_vm_type_to_string(uint32_t vm_type)
94{
95 switch(vm_type) {
96 case SPA_CPU_VM_NONE:
97 return NULL;
98 case SPA_CPU_VM_KVM:
99 return "kvm";
100 case SPA_CPU_VM_QEMU:
101 return "qemu";
102 case SPA_CPU_VM_BOCHS:
103 return "bochs";
104 case SPA_CPU_VM_XEN:
105 return "xen";
106 case SPA_CPU_VM_UML:
107 return "uml";
109 return "vmware";
111 return "oracle";
113 return "microsoft";
115 return "zvm";
117 return "parallels";
118 case SPA_CPU_VM_BHYVE:
119 return "bhyve";
120 case SPA_CPU_VM_QNX:
121 return "qnx";
122 case SPA_CPU_VM_ACRN:
123 return "acrn";
125 return "powervm";
126 case SPA_CPU_VM_OTHER:
127 return "other";
128 default:
129 return "unknown";
130 }
132
136struct spa_cpu_methods {
139#define SPA_VERSION_CPU_METHODS 2
140 uint32_t version;
143 uint32_t (*get_flags) (void *object);
144
146 int (*force_flags) (void *object, uint32_t flags);
149 uint32_t (*get_count) (void *object);
150
152 uint32_t (*get_max_align) (void *object);
153
154 /* check if running in a VM. Since:1 */
155 uint32_t (*get_vm_type) (void *object);
156
157 /* denormals will be handled as zero, either with FTZ or DAZ.
158 * Since:2 */
159 int (*zero_denormals) (void *object, bool enable);
160};
161
162#define spa_cpu_method(o,method,version,...) \
163({ \
164 int _res = -ENOTSUP; \
165 struct spa_cpu *_c = o; \
166 spa_interface_call_res(&_c->iface, \
167 struct spa_cpu_methods, _res, \
168 method, version, ##__VA_ARGS__); \
169 _res; \
170})
171#define spa_cpu_get_flags(c) spa_cpu_method(c, get_flags, 0)
172#define spa_cpu_force_flags(c,f) spa_cpu_method(c, force_flags, 0, f)
173#define spa_cpu_get_count(c) spa_cpu_method(c, get_count, 0)
174#define spa_cpu_get_max_align(c) spa_cpu_method(c, get_max_align, 0)
175#define spa_cpu_get_vm_type(c) spa_cpu_method(c, get_vm_type, 1)
176#define spa_cpu_zero_denormals(c,e) spa_cpu_method(c, zero_denormals, 2, e)
177
179#define SPA_KEY_CPU_FORCE "cpu.force"
180#define SPA_KEY_CPU_VM_TYPE "cpu.vm.type"
181#define SPA_KEY_CPU_ZERO_DENORMALS "cpu.zero.denormals"
187#ifdef __cplusplus
188} /* extern "C" */
189#endif
190
191#endif /* SPA_CPU_H */
spa/utils/defs.h
#define SPA_CPU_VM_POWERVM
Definition cpu.h:147
#define SPA_CPU_VM_OTHER
Definition cpu.h:119
#define SPA_CPU_VM_PARALLELS
Definition cpu.h:139
#define SPA_CPU_VM_QNX
Definition cpu.h:143
#define SPA_CPU_VM_VMWARE
Definition cpu.h:131
#define SPA_CPU_VM_ORACLE
Definition cpu.h:133
#define SPA_CPU_VM_MICROSOFT
Definition cpu.h:135
#define SPA_CPU_VM_XEN
Definition cpu.h:127
#define SPA_CPU_VM_KVM
Definition cpu.h:121
#define SPA_CPU_VM_ZVM
Definition cpu.h:137
#define SPA_CPU_VM_BHYVE
Definition cpu.h:141
#define SPA_CPU_VM_UML
Definition cpu.h:129
#define SPA_CPU_VM_BOCHS
Definition cpu.h:125
static const char * spa_cpu_vm_type_to_string(uint32_t vm_type)
Definition cpu.h:149
#define SPA_CPU_VM_NONE
Definition cpu.h:117
#define SPA_CPU_VM_QEMU
Definition cpu.h:123
#define SPA_CPU_VM_ACRN
Definition cpu.h:145
spa/utils/hook.h
methods
Definition cpu.h:192
uint32_t(* get_max_align)(void *object)
get maximum required alignment of data
Definition cpu.h:209
int(* force_flags)(void *object, uint32_t flags)
force CPU flags, use SPA_CPU_FORCE_AUTODETECT to autodetect CPU flags
Definition cpu.h:203
uint32_t(* get_count)(void *object)
get number of CPU cores
Definition cpu.h:206
uint32_t(* get_flags)(void *object)
get CPU flags
Definition cpu.h:200
int(* zero_denormals)(void *object, bool enable)
Definition cpu.h:216
uint32_t(* get_vm_type)(void *object)
Definition cpu.h:212
uint32_t version
Definition cpu.h:197
Definition cpu.h:39
struct spa_interface iface
Definition cpu.h:39
Definition hook.h:138