| mmu_oea64.c (323968) | mmu_oea64.c (327785) |
|---|---|
| 1/*- 2 * Copyright (c) 2008-2015 Nathan Whitehorn 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * --- 11 unchanged lines hidden (view full) --- 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2008-2015 Nathan Whitehorn 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * --- 11 unchanged lines hidden (view full) --- 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: stable/11/sys/powerpc/aim/mmu_oea64.c 323968 2017-09-24 12:53:33Z markj $"); | 28__FBSDID("$FreeBSD: stable/11/sys/powerpc/aim/mmu_oea64.c 327785 2018-01-10 20:39:26Z markj $"); |
| 29 30/* 31 * Manages physical address maps. 32 * 33 * Since the information managed by this module is also stored by the 34 * logical address mapping module, this module may throw away valid virtual 35 * to physical mappings at almost any time. However, invalidations of 36 * mappings must be done as requested. --- 1473 unchanged lines hidden (view full) --- 1510 1511static void * 1512moea64_uma_page_alloc(uma_zone_t zone, vm_size_t bytes, uint8_t *flags, 1513 int wait) 1514{ 1515 struct pvo_entry *pvo; 1516 vm_offset_t va; 1517 vm_page_t m; | 29 30/* 31 * Manages physical address maps. 32 * 33 * Since the information managed by this module is also stored by the 34 * logical address mapping module, this module may throw away valid virtual 35 * to physical mappings at almost any time. However, invalidations of 36 * mappings must be done as requested. --- 1473 unchanged lines hidden (view full) --- 1510 1511static void * 1512moea64_uma_page_alloc(uma_zone_t zone, vm_size_t bytes, uint8_t *flags, 1513 int wait) 1514{ 1515 struct pvo_entry *pvo; 1516 vm_offset_t va; 1517 vm_page_t m; |
| 1518 int pflags, needed_lock; | 1518 int needed_lock; |
| 1519 1520 /* 1521 * This entire routine is a horrible hack to avoid bothering kmem 1522 * for new KVA addresses. Because this can get called from inside 1523 * kmem allocation routines, calling kmem for a new address here 1524 * can lead to multiply locking non-recursive mutexes. 1525 */ 1526 1527 *flags = UMA_SLAB_PRIV; 1528 needed_lock = !PMAP_LOCKED(kernel_pmap); | 1519 1520 /* 1521 * This entire routine is a horrible hack to avoid bothering kmem 1522 * for new KVA addresses. Because this can get called from inside 1523 * kmem allocation routines, calling kmem for a new address here 1524 * can lead to multiply locking non-recursive mutexes. 1525 */ 1526 1527 *flags = UMA_SLAB_PRIV; 1528 needed_lock = !PMAP_LOCKED(kernel_pmap); |
| 1529 pflags = malloc2vm_flags(wait) | VM_ALLOC_WIRED; | |
| 1530 | 1529 |
| 1531 for (;;) { 1532 m = vm_page_alloc(NULL, 0, pflags | VM_ALLOC_NOOBJ); 1533 if (m == NULL) { 1534 if (wait & M_NOWAIT) 1535 return (NULL); 1536 VM_WAIT; 1537 } else 1538 break; 1539 } | 1530 m = vm_page_alloc(NULL, 0, 1531 malloc2vm_flags(wait) | VM_ALLOC_WIRED | VM_ALLOC_NOOBJ); 1532 if (m == NULL) 1533 return (NULL); |
| 1540 1541 va = VM_PAGE_TO_PHYS(m); 1542 1543 pvo = alloc_pvo_entry(1 /* bootstrap */); 1544 1545 pvo->pvo_pte.prot = VM_PROT_READ | VM_PROT_WRITE; 1546 pvo->pvo_pte.pa = VM_PAGE_TO_PHYS(m) | LPTE_M; 1547 --- 1191 unchanged lines hidden --- | 1534 1535 va = VM_PAGE_TO_PHYS(m); 1536 1537 pvo = alloc_pvo_entry(1 /* bootstrap */); 1538 1539 pvo->pvo_pte.prot = VM_PROT_READ | VM_PROT_WRITE; 1540 pvo->pvo_pte.pa = VM_PAGE_TO_PHYS(m) | LPTE_M; 1541 --- 1191 unchanged lines hidden --- |