| vmparam.h (172317) | vmparam.h (174938) |
|---|---|
| 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * Copyright (c) 1994 John S. Dyson 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. --- 23 unchanged lines hidden (view full) --- 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * from: @(#)vmparam.h 5.9 (Berkeley) 5/12/91 39 * from: FreeBSD: src/sys/i386/include/vmparam.h,v 1.33 2000/03/30 | 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * Copyright (c) 1994 John S. Dyson 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * William Jolitz. --- 23 unchanged lines hidden (view full) --- 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * from: @(#)vmparam.h 5.9 (Berkeley) 5/12/91 39 * from: FreeBSD: src/sys/i386/include/vmparam.h,v 1.33 2000/03/30 |
| 40 * $FreeBSD: head/sys/sparc64/include/vmparam.h 172317 2007-09-25 06:25:06Z alc $ | 40 * $FreeBSD: head/sys/sparc64/include/vmparam.h 174938 2007-12-27 16:45:39Z alc $ |
| 41 */ 42 43 44#ifndef _MACHINE_VMPARAM_H_ 45#define _MACHINE_VMPARAM_H_ 46 47/* 48 * Virtual memory related constants, all in bytes --- 68 unchanged lines hidden (view full) --- 117 * at most four TTEs, collectively mapping 16MB of physical memory. 118 * By reducing the number of distinct 16MB "pages" that are used by UMA, 119 * the physical memory allocator reduces the likelihood of both 4MB 120 * page TLB misses and cache misses caused by 4MB page TLB misses. 121 */ 122#define VM_NFREEORDER 12 123 124/* | 41 */ 42 43 44#ifndef _MACHINE_VMPARAM_H_ 45#define _MACHINE_VMPARAM_H_ 46 47/* 48 * Virtual memory related constants, all in bytes --- 68 unchanged lines hidden (view full) --- 117 * at most four TTEs, collectively mapping 16MB of physical memory. 118 * By reducing the number of distinct 16MB "pages" that are used by UMA, 119 * the physical memory allocator reduces the likelihood of both 4MB 120 * page TLB misses and cache misses caused by 4MB page TLB misses. 121 */ 122#define VM_NFREEORDER 12 123 124/* |
| 125 * Disable superpage reservations. 126 */ 127#ifndef VM_NRESERVLEVEL 128#define VM_NRESERVLEVEL 0 129#endif 130 131/* |
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| 125 * Address space layout. 126 * 127 * UltraSPARC I and II implement a 44 bit virtual address space. The address 128 * space is split into 2 regions at each end of the 64 bit address space, with 129 * an out of range "hole" in the middle. UltraSPARC III implements the full 130 * 64 bit virtual address space, but we don't really have any use for it and 131 * 43 bits of user address space is considered to be "enough", so we ignore it. 132 * --- 97 unchanged lines hidden --- | 132 * Address space layout. 133 * 134 * UltraSPARC I and II implement a 44 bit virtual address space. The address 135 * space is split into 2 regions at each end of the 64 bit address space, with 136 * an out of range "hole" in the middle. UltraSPARC III implements the full 137 * 64 bit virtual address space, but we don't really have any use for it and 138 * 43 bits of user address space is considered to be "enough", so we ignore it. 139 * --- 97 unchanged lines hidden --- |