diff options
Diffstat (limited to 'sys/ia64/ia64/uio_machdep.c')
| -rw-r--r-- | sys/ia64/ia64/uio_machdep.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/sys/ia64/ia64/uio_machdep.c b/sys/ia64/ia64/uio_machdep.c deleted file mode 100644 index 35a4d42..0000000 --- a/sys/ia64/ia64/uio_machdep.c +++ /dev/null @@ -1,120 +0,0 @@ -/*- - * Copyright (c) 2004 Alan L. Cox <alc@cs.rice.edu> - * Copyright (c) 1982, 1986, 1991, 1993 - * The Regents of the University of California. All rights reserved. - * (c) UNIX System Laboratories, Inc. - * All or some portions of this file are derived from material licensed - * to the University of California by American Telephone and Telegraph - * Co. or Unix System Laboratories, Inc. and are reproduced herein with - * the permission of UNIX System Laboratories, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * @(#)kern_subr.c 8.3 (Berkeley) 1/21/94 - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/mutex.h> -#include <sys/proc.h> -#include <sys/systm.h> -#include <sys/uio.h> - -#include <vm/vm.h> -#include <vm/vm_page.h> - -#include <machine/vmparam.h> - -/* - * Implement uiomove(9) from physical memory using the direct map to - * avoid the creation and destruction of ephemeral mappings. - */ -int -uiomove_fromphys(vm_page_t ma[], vm_offset_t offset, int n, struct uio *uio) -{ - struct thread *td = curthread; - struct iovec *iov; - void *cp; - vm_offset_t page_offset; - size_t cnt; - int error = 0; - int save = 0; - - KASSERT(uio->uio_rw == UIO_READ || uio->uio_rw == UIO_WRITE, - ("uiomove_fromphys: mode")); - KASSERT(uio->uio_segflg != UIO_USERSPACE || uio->uio_td == curthread, - ("uiomove_fromphys proc")); - save = td->td_pflags & TDP_DEADLKTREAT; - td->td_pflags |= TDP_DEADLKTREAT; - while (n > 0 && uio->uio_resid) { - iov = uio->uio_iov; - cnt = iov->iov_len; - if (cnt == 0) { - uio->uio_iov++; - uio->uio_iovcnt--; - continue; - } - if (cnt > n) - cnt = n; - page_offset = offset & PAGE_MASK; - cnt = min(cnt, PAGE_SIZE - page_offset); - cp = (char *) - IA64_PHYS_TO_RR7(ma[offset >> PAGE_SHIFT]->phys_addr) + - page_offset; - switch (uio->uio_segflg) { - case UIO_USERSPACE: - maybe_yield(); - if (uio->uio_rw == UIO_READ) - error = copyout(cp, iov->iov_base, cnt); - else - error = copyin(iov->iov_base, cp, cnt); - if (error) - goto out; - break; - case UIO_SYSSPACE: - if (uio->uio_rw == UIO_READ) - bcopy(cp, iov->iov_base, cnt); - else - bcopy(iov->iov_base, cp, cnt); - break; - case UIO_NOCOPY: - break; - } - iov->iov_base = (char *)iov->iov_base + cnt; - iov->iov_len -= cnt; - uio->uio_resid -= cnt; - uio->uio_offset += cnt; - offset += cnt; - n -= cnt; - } -out: - if (save == 0) - td->td_pflags &= ~TDP_DEADLKTREAT; - return (error); -} |
