1 /* Prototypes for system library functions. */ 2 3 #ifndef _SYSLIB_H 4 #define _SYSLIB_H 5 6 #include <sys/types.h> 7 #include <sys/sigtypes.h> 8 9 #include <minix/ipc.h> 10 #include <minix/u64.h> 11 #include <minix/devio.h> 12 13 #include <minix/safecopies.h> 14 #include <minix/sef.h> 15 #include <machine/mcontext.h> 16 17 /* Forward declaration */ 18 struct reg86u; 19 struct rs_pci; 20 struct rusage; 21 22 #define SYSTASK SYSTEM 23 24 /*==========================================================================* 25 * Minix system library. * 26 *==========================================================================*/ 27 int _taskcall(endpoint_t who, int syscallnr, message *msgptr); 28 int _kernel_call(int syscallnr, message *msgptr); 29 30 int sys_abort(int how); 31 int sys_enable_iop(endpoint_t proc_ep); 32 int sys_exec(endpoint_t proc_ep, vir_bytes stack_ptr, vir_bytes progname, 33 vir_bytes pc, vir_bytes ps_str); 34 int sys_fork(endpoint_t parent, endpoint_t child, endpoint_t *, 35 u32_t vm, vir_bytes *); 36 int sys_clear(endpoint_t proc_ep); 37 int sys_exit(void); 38 int sys_trace(int req, endpoint_t proc_ep, long addr, long *data_p); 39 40 int sys_schedule(endpoint_t proc_ep, int priority, int quantum, int cpu, 41 int niced); 42 int sys_schedctl(unsigned flags, endpoint_t proc_ep, int priority, int 43 quantum, int cpu); 44 45 /* Shorthands for sys_runctl() system call. */ 46 #define sys_stop(proc_ep) sys_runctl(proc_ep, RC_STOP, 0) 47 #define sys_delay_stop(proc_ep) sys_runctl(proc_ep, RC_STOP, RC_DELAY) 48 #define sys_resume(proc_ep) sys_runctl(proc_ep, RC_RESUME, 0) 49 int sys_runctl(endpoint_t proc_ep, int action, int flags); 50 51 int sys_update(endpoint_t src_ep, endpoint_t dst_ep, int flags); 52 int sys_statectl(int request, void* address, int length); 53 int sys_privctl(endpoint_t proc_ep, int req, void *p); 54 int sys_privquery_mem(endpoint_t proc_ep, phys_bytes physstart, 55 phys_bytes physlen); 56 int sys_setgrant(cp_grant_t *grants, int ngrants); 57 58 int sys_int86(struct reg86u *reg86p); 59 int sys_vm_setbuf(phys_bytes base, phys_bytes size, phys_bytes high); 60 int sys_vm_map(endpoint_t proc_ep, int do_map, phys_bytes base, 61 phys_bytes size, phys_bytes offset); 62 int sys_vmctl(endpoint_t who, int param, u32_t value); 63 int sys_vmctl_get_pdbr(endpoint_t who, u32_t *pdbr); 64 int sys_vmctl_get_memreq(endpoint_t *who, vir_bytes *mem, vir_bytes 65 *len, int *wrflag, endpoint_t *who_s, vir_bytes *mem_s, endpoint_t *); 66 int sys_vmctl_enable_paging(void * data); 67 68 int sys_readbios(phys_bytes address, void *buf, size_t size); 69 int sys_settime(int now, clockid_t clk_id, time_t sec, long nsec); 70 int sys_stime(time_t boottime); 71 int sys_vmctl_get_mapping(int index, phys_bytes *addr, phys_bytes *len, 72 int *flags); 73 int sys_vmctl_reply_mapping(int index, vir_bytes addr); 74 int sys_vmctl_set_addrspace(endpoint_t who, phys_bytes ptroot, void 75 *ptroot_v); 76 77 78 /* Shorthands for sys_sdevio() system call. */ 79 #define sys_insb(port, proc_ep, buffer, count) \ 80 sys_sdevio(DIO_INPUT_BYTE, port, proc_ep, buffer, count, 0) 81 #define sys_insw(port, proc_ep, buffer, count) \ 82 sys_sdevio(DIO_INPUT_WORD, port, proc_ep, buffer, count, 0) 83 #define sys_outsb(port, proc_ep, buffer, count) \ 84 sys_sdevio(DIO_OUTPUT_BYTE, port, proc_ep, buffer, count, 0) 85 #define sys_outsw(port, proc_ep, buffer, count) \ 86 sys_sdevio(DIO_OUTPUT_WORD, port, proc_ep, buffer, count, 0) 87 #define sys_safe_insb(port, ept, grant, offset, count) \ 88 sys_sdevio(DIO_SAFE_INPUT_BYTE, port, ept, (void*)grant, count, offset) 89 #define sys_safe_outsb(port, ept, grant, offset, count) \ 90 sys_sdevio(DIO_SAFE_OUTPUT_BYTE, port, ept, (void*)grant, count, offset) 91 #define sys_safe_insw(port, ept, grant, offset, count) \ 92 sys_sdevio(DIO_SAFE_INPUT_WORD, port, ept, (void*)grant, count, offset) 93 #define sys_safe_outsw(port, ept, grant, offset, count) \ 94 sys_sdevio(DIO_SAFE_OUTPUT_WORD, port, ept, (void*)grant, count, offset) 95 int sys_sdevio(int req, long port, endpoint_t proc_ep, void *buffer, int 96 count, vir_bytes offset); 97 void *alloc_contig(size_t len, int flags, phys_bytes *phys); 98 int free_contig(void *addr, size_t len); 99 100 #define AC_ALIGN4K 0x01 101 #define AC_LOWER16M 0x02 102 #define AC_ALIGN64K 0x04 103 #define AC_LOWER1M 0x08 104 105 /* Clock functionality: get system times, (un)schedule an alarm call, or 106 * retrieve/set a process-virtual timer. 107 */ 108 int sys_times(endpoint_t proc_ep, clock_t *user_time, clock_t *sys_time, 109 clock_t *uptime, time_t *boottime); 110 111 #define sys_setalarm(exp, abs) sys_setalarm2(exp, abs, NULL, NULL) 112 int sys_setalarm2(clock_t exp_time, int abs_time, clock_t *time_left, 113 clock_t *uptime); 114 115 int sys_vtimer(endpoint_t proc_nr, int which, clock_t *newval, clock_t 116 *oldval); 117 118 /* Shorthands for sys_irqctl() system call. */ 119 #define sys_irqdisable(hook_id) \ 120 sys_irqctl(IRQ_DISABLE, 0, 0, hook_id) 121 #define sys_irqenable(hook_id) \ 122 sys_irqctl(IRQ_ENABLE, 0, 0, hook_id) 123 #define sys_irqsetpolicy(irq_vec, policy, hook_id) \ 124 sys_irqctl(IRQ_SETPOLICY, irq_vec, policy, hook_id) 125 #define sys_irqrmpolicy(hook_id) \ 126 sys_irqctl(IRQ_RMPOLICY, 0, 0, hook_id) 127 int sys_irqctl(int request, int irq_vec, int policy, int *irq_hook_id); 128 129 /* Shorthands for sys_vircopy() and sys_physcopy() system calls. */ 130 #define sys_datacopy(p1, v1, p2, v2, len) sys_vircopy(p1, v1, p2, v2, len, 0) 131 #define sys_datacopy_try(p1, v1, p2, v2, len) sys_vircopy(p1, v1, p2, v2, len, CP_FLAG_TRY) 132 int sys_vircopy(endpoint_t src_proc, vir_bytes src_v, 133 endpoint_t dst_proc, vir_bytes dst_vir, phys_bytes bytes, int flags); 134 135 #define sys_abscopy(src_phys, dst_phys, bytes) \ 136 sys_physcopy(NONE, src_phys, NONE, dst_phys, bytes, 0) 137 int sys_physcopy(endpoint_t src_proc, vir_bytes src_vir, 138 endpoint_t dst_proc, vir_bytes dst_vir, phys_bytes bytes, int flags); 139 140 141 /* Grant-based copy functions. */ 142 int sys_safecopyfrom(endpoint_t source, cp_grant_id_t grant, vir_bytes 143 grant_offset, vir_bytes my_address, size_t bytes); 144 int sys_safecopyto(endpoint_t dest, cp_grant_id_t grant, vir_bytes 145 grant_offset, vir_bytes my_address, size_t bytes); 146 int sys_vsafecopy(struct vscp_vec *copyvec, int elements); 147 148 int sys_safememset(endpoint_t source, cp_grant_id_t grant, vir_bytes 149 grant_offset, int pattern, size_t bytes); 150 151 int sys_memset(endpoint_t who, unsigned long pattern, 152 phys_bytes base, phys_bytes bytes); 153 154 int sys_vumap(endpoint_t endpt, struct vumap_vir *vvec, 155 int vcount, size_t offset, int access, struct vumap_phys *pvec, 156 int *pcount); 157 int sys_umap(endpoint_t proc_ep, int seg, vir_bytes vir_addr, vir_bytes 158 bytes, phys_bytes *phys_addr); 159 int sys_umap_data_fb(endpoint_t proc_ep, vir_bytes vir_addr, vir_bytes 160 bytes, phys_bytes *phys_addr); 161 int sys_umap_remote(endpoint_t proc_ep, endpoint_t grantee, int seg, 162 vir_bytes vir_addr, vir_bytes bytes, phys_bytes *phys_addr); 163 164 /* Shorthands for sys_diagctl() system call. */ 165 #define sys_diagctl_diag(buf,len) \ 166 sys_diagctl(DIAGCTL_CODE_DIAG, buf, len) 167 #define sys_diagctl_stacktrace(ep) \ 168 sys_diagctl(DIAGCTL_CODE_STACKTRACE, NULL, ep) 169 #define sys_diagctl_register() \ 170 sys_diagctl(DIAGCTL_CODE_REGISTER, NULL, 0) 171 #define sys_diagctl_unregister() \ 172 sys_diagctl(DIAGCTL_CODE_UNREGISTER, NULL, 0) 173 int sys_diagctl(int ctl, char *arg1, int arg2); 174 175 /* Shorthands for sys_getinfo() system call. */ 176 #define sys_getkinfo(dst) sys_getinfo(GET_KINFO, dst, 0,0,0) 177 #define sys_getloadinfo(dst) sys_getinfo(GET_LOADINFO, dst, 0,0,0) 178 #define sys_getmachine(dst) sys_getinfo(GET_MACHINE, dst, 0,0,0) 179 #define sys_getcpuinfo(dst) sys_getinfo(GET_CPUINFO, dst, 0,0,0) 180 #define sys_getproctab(dst) sys_getinfo(GET_PROCTAB, dst, 0,0,0) 181 #define sys_getprivtab(dst) sys_getinfo(GET_PRIVTAB, dst, 0,0,0) 182 #define sys_getproc(dst,nr) sys_getinfo(GET_PROC, dst, 0,0, nr) 183 #define sys_getrandomness(dst) sys_getinfo(GET_RANDOMNESS, dst, 0,0,0) 184 #define sys_getrandom_bin(d,b) sys_getinfo(GET_RANDOMNESS_BIN, d, 0,0,b) 185 #define sys_getimage(dst) sys_getinfo(GET_IMAGE, dst, 0,0,0) 186 #define sys_getirqhooks(dst) sys_getinfo(GET_IRQHOOKS, dst, 0,0,0) 187 #define sys_getirqactids(dst) sys_getinfo(GET_IRQACTIDS, dst, 0,0,0) 188 #define sys_getmonparams(v,vl) sys_getinfo(GET_MONPARAMS, v,vl, 0,0) 189 #define sys_getschedinfo(v1,v2) sys_getinfo(GET_SCHEDINFO, v1,0, v2,0) 190 #define sys_getpriv(dst, nr) sys_getinfo(GET_PRIV, dst, 0,0, nr) 191 #define sys_getidletsc(dst) sys_getinfo(GET_IDLETSC, dst, 0,0,0) 192 #define sys_getregs(dst,nr) sys_getinfo(GET_REGS, dst, 0,0, nr) 193 #define sys_getcputicks(dst,nr) sys_getinfo(GET_CPUTICKS, dst, 0,0, nr) 194 int sys_getinfo(int request, void *val_ptr, int val_len, void *val_ptr2, 195 int val_len2); 196 int sys_whoami(endpoint_t *ep, char *name, int namelen, int 197 *priv_flags, int* init_flags); 198 199 /* Signal control. */ 200 int sys_kill(endpoint_t proc_ep, int sig); 201 int sys_sigsend(endpoint_t proc_ep, struct sigmsg *sig_ctxt); 202 int sys_sigreturn(endpoint_t proc_ep, struct sigmsg *sig_ctxt); 203 int sys_getksig(endpoint_t *proc_ep, sigset_t *k_sig_map); 204 int sys_endksig(endpoint_t proc_ep); 205 206 /* NOTE: two different approaches were used to distinguish the device I/O 207 * types 'byte', 'word', 'long': the latter uses #define and results in a 208 * smaller implementation, but looses the static type checking. 209 */ 210 int sys_voutb(pvb_pair_t *pvb_pairs, int nr_ports); 211 int sys_voutw(pvw_pair_t *pvw_pairs, int nr_ports); 212 int sys_voutl(pvl_pair_t *pvl_pairs, int nr_ports); 213 int sys_vinb(pvb_pair_t *pvb_pairs, int nr_ports); 214 int sys_vinw(pvw_pair_t *pvw_pairs, int nr_ports); 215 int sys_vinl(pvl_pair_t *pvl_pairs, int nr_ports); 216 217 /* Shorthands for sys_out() system call. */ 218 #define sys_outb(p,v) sys_out((p), (u32_t) (v), _DIO_BYTE) 219 #define sys_outw(p,v) sys_out((p), (u32_t) (v), _DIO_WORD) 220 #define sys_outl(p,v) sys_out((p), (u32_t) (v), _DIO_LONG) 221 int sys_out(int port, u32_t value, int type); 222 223 /* Shorthands for sys_in() system call. */ 224 #define sys_inb(p,v) sys_in((p), (v), _DIO_BYTE) 225 #define sys_inw(p,v) sys_in((p), (v), _DIO_WORD) 226 #define sys_inl(p,v) sys_in((p), (v), _DIO_LONG) 227 int sys_in(int port, u32_t *value, int type); 228 229 /* arm pinmux */ 230 int sys_padconf(u32_t padconf, u32_t mask, u32_t value); 231 232 /* pci.c */ 233 void pci_init(void); 234 int pci_first_dev(int *devindp, u16_t *vidp, u16_t *didp); 235 int pci_next_dev(int *devindp, u16_t *vidp, u16_t *didp); 236 int pci_find_dev(u8_t bus, u8_t dev, u8_t func, int *devindp); 237 void pci_reserve(int devind); 238 int pci_reserve_ok(int devind); 239 void pci_ids(int devind, u16_t *vidp, u16_t *didp); 240 void pci_rescan_bus(u8_t busnr); 241 u8_t pci_attr_r8(int devind, int port); 242 u16_t pci_attr_r16(int devind, int port); 243 u32_t pci_attr_r32(int devind, int port); 244 void pci_attr_w8(int devind, int port, u8_t value); 245 void pci_attr_w16(int devind, int port, u16_t value); 246 void pci_attr_w32(int devind, int port, u32_t value); 247 char *pci_dev_name(u16_t vid, u16_t did); 248 char *pci_slot_name(int devind); 249 int pci_set_acl(struct rs_pci *rs_pci); 250 int pci_del_acl(endpoint_t proc_ep); 251 int pci_get_bar(int devind, int port, u32_t *base, u32_t *size, int 252 *ioflag); 253 254 /* Profiling. */ 255 int sys_sprof(int action, int size, int freq, int type, endpoint_t 256 endpt, vir_bytes ctl_ptr, vir_bytes mem_ptr); 257 258 /* machine context */ 259 int sys_getmcontext(endpoint_t proc, vir_bytes mcp); 260 int sys_setmcontext(endpoint_t proc, vir_bytes mcp); 261 262 /* input */ 263 int tty_input_inject(int type, int code, int val); 264 265 /* Miscellaneous calls from servers and drivers. */ 266 pid_t srv_fork(uid_t reuid, gid_t regid); 267 int srv_kill(pid_t pid, int sig); 268 int getprocnr(pid_t pid, endpoint_t *proc_ep); 269 int mapdriver(char *label, devmajor_t major); 270 pid_t getnpid(endpoint_t proc_ep); 271 uid_t getnuid(endpoint_t proc_ep); 272 gid_t getngid(endpoint_t proc_ep); 273 int checkperms(endpoint_t endpt, char *path, size_t size); 274 int copyfd(endpoint_t endpt, int fd, int what); 275 #define COPYFD_FROM 0 /* copy file descriptor from remote process */ 276 #define COPYFD_TO 1 /* copy file descriptor to remote process */ 277 #define COPYFD_CLOSE 2 /* close file descriptor in remote process */ 278 279 /* 280 * These are also the event numbers used in PROC_EVENT messages, but in order 281 * to allow for subscriptions to multiple events, they form a bit mask. 282 */ 283 #define PROC_EVENT_EXIT 0x01 /* process has exited */ 284 #define PROC_EVENT_SIGNAL 0x02 /* process has caught signal */ 285 int proceventmask(unsigned int mask); 286 287 #endif /* _SYSLIB_H */ 288 289