| mmu_oea64.c (279594) | mmu_oea64.c (279940) |
|---|---|
| 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: head/sys/powerpc/aim/mmu_oea64.c 279594 2015-03-04 16:45:31Z nwhitehorn $"); | 28__FBSDID("$FreeBSD: head/sys/powerpc/aim/mmu_oea64.c 279940 2015-03-13 00:08:58Z nwhitehorn $"); |
| 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. --- 1856 unchanged lines hidden (view full) --- 1893 entropy = (moea64_vsidcontext >> 20); 1894 continue; 1895 } 1896 i = ffs(~moea64_vsid_bitmap[n]) - 1; 1897 mask = 1 << i; 1898 hash &= VSID_HASHMASK & ~(VSID_NBPW - 1); 1899 hash |= i; 1900 } | 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. --- 1856 unchanged lines hidden (view full) --- 1893 entropy = (moea64_vsidcontext >> 20); 1894 continue; 1895 } 1896 i = ffs(~moea64_vsid_bitmap[n]) - 1; 1897 mask = 1 << i; 1898 hash &= VSID_HASHMASK & ~(VSID_NBPW - 1); 1899 hash |= i; 1900 } |
| 1901 if (hash == VSID_VRMA) /* also special, avoid this too */ 1902 continue; |
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| 1901 KASSERT(!(moea64_vsid_bitmap[n] & mask), 1902 ("Allocating in-use VSID %#zx\n", hash)); 1903 moea64_vsid_bitmap[n] |= mask; 1904 mtx_unlock(&moea64_slb_mutex); 1905 return (hash); 1906 } 1907 1908 mtx_unlock(&moea64_slb_mutex); --- 746 unchanged lines hidden --- | 1903 KASSERT(!(moea64_vsid_bitmap[n] & mask), 1904 ("Allocating in-use VSID %#zx\n", hash)); 1905 moea64_vsid_bitmap[n] |= mask; 1906 mtx_unlock(&moea64_slb_mutex); 1907 return (hash); 1908 } 1909 1910 mtx_unlock(&moea64_slb_mutex); --- 746 unchanged lines hidden --- |