diff options
Diffstat (limited to 'arch/mips/kernel')
| -rw-r--r-- | arch/mips/kernel/sysirix.c | 119 |
1 files changed, 82 insertions, 37 deletions
diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c index c1b672e76..6aae9bb7e 100644 --- a/arch/mips/kernel/sysirix.c +++ b/arch/mips/kernel/sysirix.c @@ -1,4 +1,4 @@ -/* $Id: sysirix.c,v 1.3 1997/07/20 15:32:25 ralf Exp $ +/* $Id: sysirix.c,v 1.4 1997/08/06 19:15:08 miguel Exp $ * sysirix.c: IRIX system call emulation. * * Copyright (C) 1996 David S. Miller @@ -29,7 +29,9 @@ /* 2,300 lines of complete and utter shit coming up... */ /* The sysmp commands supported thus far. */ -#define MP_PGSIZE 14 /* Return system page size in v1. */ +#define MP_NPROCS 1 /* # processor in complex */ +#define MP_NAPROCS 2 /* # active processors in complex */ +#define MP_PGSIZE 14 /* Return system page size in v1. */ asmlinkage int irix_sysmp(struct pt_regs *regs) { @@ -45,7 +47,12 @@ asmlinkage int irix_sysmp(struct pt_regs *regs) case MP_PGSIZE: error = PAGE_SIZE; break; - + case MP_NPROCS: + error = NPROCS; + break; + case MP_NAPROCS: + error = NPROCS; + break; default: printk("SYSMP[%s:%d]: Unsupported opcode %d\n", current->comm, current->pid, (int)cmd); @@ -228,12 +235,17 @@ extern asmlinkage int sys_getsid(pid_t pid); extern asmlinkage int sys_getgroups(int gidsetsize, gid_t *grouplist); extern asmlinkage int sys_setgroups(int gidsetsize, gid_t *grouplist); extern int getrusage(struct task_struct *p, int who, struct rusage *ru); +extern char *prom_getenv(char *name); +extern long prom_setenv(char *name, char *value); /* The syssgi commands supported thus far. */ #define SGI_SYSID 1 /* Return unique per-machine identifier. */ #define SGI_RDNAME 6 /* Return string name of a process. */ +#define SGI_SETNVRAM 8 /* Set PROM variable. */ +#define SGI_GETNVRAM 9 /* Get PROM variable. */ #define SGI_SETPGID 21 /* Set process group id. */ #define SGI_SYSCONF 22 /* POSIX sysconf garbage. */ +#define SGI_PATHCONF 24 /* POSIX sysconf garbage. */ #define SGI_SETGROUPS 40 /* POSIX sysconf garbage. */ #define SGI_GETGROUPS 41 /* POSIX sysconf garbage. */ #define SGI_RUSAGE 56 /* BSD style rusage(). */ @@ -246,40 +258,73 @@ extern int getrusage(struct task_struct *p, int who, struct rusage *ru); asmlinkage int irix_syssgi(struct pt_regs *regs) { - unsigned long cmd; - int retval, base = 0; - - lock_kernel(); - if(regs->regs[2] == 1000) - base = 1; - - cmd = regs->regs[base + 4]; - switch(cmd) { - case SGI_SYSID: { - char *buf = (char *) regs->regs[base + 5]; - - /* XXX Use ethernet addr.... */ - retval = clear_user(buf, 64); - break; - } - - case SGI_RDNAME: { - int pid = (int) regs->regs[base + 5]; - char *buf = (char *) regs->regs[base + 6]; - struct task_struct *p; - - retval = verify_area(VERIFY_WRITE, buf, 16); - if(retval) - break; - for_each_task(p) { - if(p->pid == pid) - goto found0; - } - retval = -ESRCH; - - found0: - copy_to_user(buf, p->comm, 16); - retval = 0; + unsigned long cmd; + int retval, base = 0; + + lock_kernel(); + if(regs->regs[2] == 1000) + base = 1; + + cmd = regs->regs[base + 4]; + switch(cmd) { + case SGI_SYSID: { + char *buf = (char *) regs->regs[base + 5]; + + /* XXX Use ethernet addr.... */ + retval = clear_user(buf, 64); + break; + } + + case SGI_RDNAME: { + int pid = (int) regs->regs[base + 5]; + char *buf = (char *) regs->regs[base + 6]; + struct task_struct *p; + + retval = verify_area(VERIFY_WRITE, buf, 16); + if(retval) + break; + for_each_task(p) { + if(p->pid == pid) + goto found0; + } + retval = -ESRCH; + + found0: + /* XXX Need to check sizes. */ + copy_to_user(buf, p->comm, 16); + retval = 0; + break; + } + + case SGI_GETNVRAM: { + char *name = (char *) regs->regs[base+5]; + char *buf = (char *) regs->regs[base+6]; + char *value; + retval = verify_area(VERIFY_WRITE, buf, 128); + if (retval) + break; + value = prom_getenv(name); + if (!value) { + retval = -EINVAL; + break; + } + /* Do I strlen() for the length? */ + copy_to_user(buf, value, 128); + retval = 0; + break; + } + + case SGI_SETNVRAM: { + char *name = (char *) regs->regs[base+5]; + char *buf = (char *) regs->regs[base+6]; + retval = prom_setenv(name, buf); + /* XXX make sure retval conforms to syssgi(2) */ + printk("[%s:%d] setnvram(\"%s\", \"%s\"): retval %d", + current->comm, current->pid, + name, value, retval); + if (retval == PROM_ENOENT) + retval = -ENOENT; + break; } case SGI_SETPGID: { |