/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
+ * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
*
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
*
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the
+ * License may not be used to create, or enable the creation or
+ * redistribution of, unlawful or unlicensed copies of an Apple operating
+ * system, or to circumvent, violate, or enable the circumvention or
+ * violation of, any terms of an Apple operating system software license
+ * agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
* file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
* limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
*/
/*-
* Copyright (c) 1988 University of Utah.
#include <sys/param.h>
#include <sys/dir.h>
#include <sys/proc.h>
-#include <sys/buf.h>
#include <sys/systm.h>
#include <sys/vm.h>
-#include <sys/uio.h>
+#include <sys/uio_internal.h>
#include <sys/malloc.h>
#include <vm/pmap.h>
static caddr_t devzerobuf;
-extern vm_offset_t mem_actual;
extern pmap_t kernel_pmap;
+extern boolean_t kernacc(off_t, size_t );
+
+int mmread(dev_t dev, struct uio *uio);
+int mmrw(dev_t dev, struct uio *uio, enum uio_rw rw);
+int mmioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p);
+int mmwrite(dev_t dev, struct uio *uio);
+int
mmread(dev, uio)
dev_t dev;
struct uio *uio;
return (mmrw(dev, uio, UIO_READ));
}
+int
mmwrite(dev, uio)
dev_t dev;
struct uio *uio;
return (mmrw(dev, uio, UIO_WRITE));
}
+int
+mmioctl(__unused dev_t dev, u_long cmd, __unused caddr_t data,
+ __unused int flag, __unused struct proc *p)
+{
+ switch (cmd) {
+ case FIONBIO:
+ case FIOASYNC:
+ /* OK to do nothing: we always return immediately */
+ break;
+ default:
+ return ENODEV;
+ }
+
+ return (0);
+}
+
+int
mmrw(dev, uio, rw)
dev_t dev;
struct uio *uio;
enum uio_rw rw;
{
register int o;
- register u_int c, v;
- register struct iovec *iov;
+#if LP64KERN
+ register uint64_t c;
+#else
+ register uint c;
+#endif
+ addr64_t vll;
int error = 0;
vm_offset_t where;
- int spl;
- vm_size_t size;
- extern boolean_t kernacc(off_t, size_t );
-
- while (uio->uio_resid > 0 && error == 0) {
- iov = uio->uio_iov;
- if (iov->iov_len == 0) {
- uio->uio_iov++;
+
+ while (uio_resid(uio) > 0 && error == 0) {
+ if (uio_iov_len(uio) == 0) {
+ uio_next_iov(uio);
uio->uio_iovcnt--;
if (uio->uio_iovcnt < 0)
panic("mmrw");
/* minor device 0 is physical memory */
case 0:
- v = trunc_page(uio->uio_offset);
- if (uio->uio_offset >= ((dgWork.dgFlags & enaDiagDM) ? mem_actual : mem_size))
+ vll = trunc_page_64(uio->uio_offset);
+ if(((vll >> 31) == 1) || vll >= ((dgWork.dgFlags & enaDiagDM) ? mem_actual : max_mem))
goto fault;
- size= PAGE_SIZE;
-
if(dgWork.dgFlags & enaDiagDM) { /* Can we really get all memory? */
- if (kmem_alloc_pageable(kernel_map, &where, size) != KERN_SUCCESS) {
+ if (kmem_alloc_pageable(kernel_map, &where, PAGE_SIZE) != KERN_SUCCESS) {
goto fault;
}
else {
- (void)mapping_make(kernel_pmap, 0, where, v,
- VM_PROT_READ, 2, 0); /* Map it in for the moment */
+ addr64_t collad;
+
+ collad = mapping_make(kernel_pmap, (addr64_t)where, (ppnum_t)(vll >> 12), 0, 1, VM_PROT_READ); /* Map it in for the moment */
+ if(collad) { /* See if it failed (shouldn't happen) */
+ kmem_free(kernel_map, where, PAGE_SIZE); /* Toss the page */
+ goto fault; /* Kill the transfer */
+ }
}
}
else {
- if (kmem_alloc(kernel_map, &where, size)
+ if (kmem_alloc(kernel_map, &where, 4096)
!= KERN_SUCCESS) {
goto fault;
}
}
- o = uio->uio_offset - v;
- c = min(PAGE_SIZE - o, (u_int)iov->iov_len);
- error = uiomove((caddr_t) (where + o), c, uio);
+ o = uio->uio_offset - vll;
+ // LP64todo - fix this!
+ c = min(PAGE_SIZE - o, uio_iov_len(uio));
+ error = uiomove((caddr_t)(where + o), c, uio);
- if(dgWork.dgFlags & enaDiagDM) (void)mapping_remove(kernel_pmap, where); /* Unmap it */
+ if(dgWork.dgFlags & enaDiagDM) (void)mapping_remove(kernel_pmap, (addr64_t)where); /* Unmap it */
kmem_free(kernel_map, where, PAGE_SIZE);
continue;
/* minor device 1 is kernel memory */
case 1:
/* Do some sanity checking */
- if (((caddr_t)uio->uio_offset >= VM_MAX_KERNEL_ADDRESS) ||
- ((caddr_t)uio->uio_offset <= VM_MIN_KERNEL_ADDRESS))
+ if (((addr64_t)uio->uio_offset > vm_last_addr) ||
+ ((addr64_t)uio->uio_offset < VM_MIN_KERNEL_ADDRESS))
goto fault;
- c = iov->iov_len;
- if (!kernacc((caddr_t)uio->uio_offset, c))
+ c = uio_iov_len(uio);
+ if (!kernacc(uio->uio_offset, c))
goto fault;
- error = uiomove((caddr_t)uio->uio_offset, (int)c, uio);
+ error = uiomove64(uio->uio_offset, c, uio);
continue;
/* minor device 2 is EOF/RATHOLE */
case 2:
if (rw == UIO_READ)
return (0);
- c = iov->iov_len;
+ c = uio_iov_len(uio);
break;
/* minor device 3 is ZERO/RATHOLE */
case 3:
bzero(devzerobuf, PAGE_SIZE);
}
if(uio->uio_rw == UIO_WRITE) {
- c = iov->iov_len;
+ c = uio_iov_len(uio);
break;
}
- c = min(iov->iov_len, PAGE_SIZE);
- error = uiomove(devzerobuf, (int)c, uio);
+ // LP64todo - fix this!
+ c = min(uio_iov_len(uio), PAGE_SIZE);
+ error = uiomove(devzerobuf, c, uio);
continue;
default:
goto fault;
if (error)
break;
- iov->iov_base += c;
- iov->iov_len -= c;
+ uio_iov_base_add(uio, c);
uio->uio_offset += c;
- uio->uio_resid -= c;
+#if LP64KERN
+ uio_setresid(uio, (uio_resid(uio) - c));
+ uio_iov_len_add(uio, -((int64_t)c));
+#else
+ uio_setresid(uio, (uio_resid(uio) - c));
+ uio_iov_len_add(uio, -((int)c));
+#endif
}
return (error);
fault:
projects / apple / xnu.git / blobdiff