/*      $NetBSD: procfs_machdep.c,v 1.9 2014/04/06 14:47:46 martin Exp $        */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: procfs_machdep.c,v 1.9 2014/04/06 14:47:46 martin Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/vnode.h>
#include <sys/proc.h>

#include <miscfs/procfs/procfs.h>

#include <machine/reg.h>


/*
 * Linux-style /proc/cpuinfo.
 * Only used when procfs is mounted with -o linux.
 */
int
procfs_getcpuinfstr(char *buf, size_t *len)
{
        *len = 0;

        return 0;
}

#ifdef __HAVE_PROCFS_MACHDEP
void
procfs_machdep_allocvp(struct vnode *vp)
{
        struct pfsnode *pfs = vp->v_data;

        switch (pfs->pfs_type) {
        case Pmachdep_vecregs:  /* /proc/N/vecregs = -rw------- */
                pfs->pfs_mode = S_IRUSR|S_IWUSR;
                vp->v_type = VREG;
                break;

        default:
                panic("procfs_machdep_allocvp");
        }
}

int
procfs_machdep_rw(struct lwp *curl, struct lwp *l, struct pfsnode *pfs,
    struct uio *uio)
{

        switch (pfs->pfs_type) {
        case Pmachdep_vecregs:
                return (procfs_machdep_dovecregs(curl, l, pfs, uio));

        default:
                panic("procfs_machdep_rw");
        }

        /* NOTREACHED */
        return (EINVAL);
}

int
procfs_machdep_getattr(struct vnode *vp, struct vattr *vap, struct proc *procp)
{
        struct pfsnode *pfs = VTOPFS(vp);

        switch (pfs->pfs_type) {
        case Pmachdep_vecregs:
                vap->va_bytes = vap->va_size = sizeof(struct vreg);
                break;

        default:
                panic("procfs_machdep_getattr");
        }

        return (0);
}

int
procfs_machdep_dovecregs(struct lwp *curl, struct lwp *l,
    struct pfsnode *pfs, struct uio *uio)
{

        return (process_machdep_dovecregs(curl, l, uio));
}

int
procfs_machdep_validvecregs(struct lwp *l, struct mount *mp)
{

        return (process_machdep_validvecregs(l->l_proc));
}
#endif