1 /*
2 * Alpha specific proc functions for linux-user
3 *
4 * SPDX-License-Identifier: GPL-2.0-or-later
5 */
6 #ifndef ALPHA_TARGET_PROC_H
7 #define ALPHA_TARGET_PROC_H
8
open_cpuinfo(CPUArchState * cpu_env,int fd)9 static int open_cpuinfo(CPUArchState *cpu_env, int fd)
10 {
11 int max_cpus = sysconf(_SC_NPROCESSORS_CONF);
12 int num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
13 unsigned long cpu_mask;
14 char model[32];
15 const char *p, *q;
16 int t;
17
18 p = object_class_get_name(OBJECT_CLASS(CPU_GET_CLASS(env_cpu(cpu_env))));
19 q = strchr(p, '-');
20 t = q - p;
21 assert(t < sizeof(model));
22 memcpy(model, p, t);
23 model[t] = 0;
24
25 t = sched_getaffinity(getpid(), sizeof(cpu_mask), (cpu_set_t *)&cpu_mask);
26 if (t < 0) {
27 if (num_cpus >= sizeof(cpu_mask) * 8) {
28 cpu_mask = -1;
29 } else {
30 cpu_mask = (1UL << num_cpus) - 1;
31 }
32 }
33
34 dprintf(fd,
35 "cpu\t\t\t: Alpha\n"
36 "cpu model\t\t: %s\n"
37 "cpu variation\t\t: 0\n"
38 "cpu revision\t\t: 0\n"
39 "cpu serial number\t: JA00000000\n"
40 "system type\t\t: QEMU\n"
41 "system variation\t: QEMU_v" QEMU_VERSION "\n"
42 "system revision\t\t: 0\n"
43 "system serial number\t: AY00000000\n"
44 "cycle frequency [Hz]\t: 250000000\n"
45 "timer frequency [Hz]\t: 250.00\n"
46 "page size [bytes]\t: %d\n"
47 "phys. address bits\t: %d\n"
48 "max. addr. space #\t: 255\n"
49 "BogoMIPS\t\t: 2500.00\n"
50 "kernel unaligned acc\t: 0 (pc=0,va=0)\n"
51 "user unaligned acc\t: 0 (pc=0,va=0)\n"
52 "platform string\t\t: AlphaServer QEMU user-mode VM\n"
53 "cpus detected\t\t: %d\n"
54 "cpus active\t\t: %d\n"
55 "cpu active mask\t\t: %016lx\n"
56 "L1 Icache\t\t: n/a\n"
57 "L1 Dcache\t\t: n/a\n"
58 "L2 cache\t\t: n/a\n"
59 "L3 cache\t\t: n/a\n",
60 model, TARGET_PAGE_SIZE, TARGET_PHYS_ADDR_SPACE_BITS,
61 max_cpus, num_cpus, cpu_mask);
62
63 return 0;
64 }
65 #define HAVE_ARCH_PROC_CPUINFO
66
67 #endif /* ALPHA_TARGET_PROC_H */
68