| 1 | /* $OpenBSD: param.h,v 1.39 2023/12/14 13:26:49 claudio Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (C) 1995, 1996 Wolfgang Solfrank. |
| 5 | * Copyright (C) 1995, 1996 TooLs GmbH. |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * Redistribution and use in source and binary forms, with or without |
| 9 | * modification, are permitted provided that the following conditions |
| 10 | * are met: |
| 11 | * 1. Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer in the |
| 15 | * documentation and/or other materials provided with the distribution. |
| 16 | * 3. All advertising materials mentioning features or use of this software |
| 17 | * must display the following acknowledgement: |
| 18 | * This product includes software developed by TooLs GmbH. |
| 19 | * 4. The name of TooLs GmbH may not be used to endorse or promote products |
| 20 | * derived from this software without specific prior written permission. |
| 21 | * |
| 22 | * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR |
| 23 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 24 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 25 | * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 26 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 27 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 28 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 29 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 30 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 31 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 32 | */ |
| 33 | |
| 34 | #ifndef _POWERPC_PARAM_H_ |
| 35 | #define _POWERPC_PARAM_H_ |
| 36 | |
| 37 | #ifdef _KERNEL |
| 38 | #ifndef _LOCORE |
| 39 | #include <machine/cpu.h> |
| 40 | #endif /* _LOCORE */ |
| 41 | #endif |
| 42 | |
| 43 | #define MACHINE_ARCH "powerpc" |
| 44 | #define _MACHINE_ARCH powerpc |
| 45 | #define MID_MACHINE MID_POWERPC |
| 46 | |
| 47 | #define PAGE_SHIFT 12 |
| 48 | #define PAGE_SIZE (1 << PAGE_SHIFT) |
| 49 | #define PAGE_MASK (PAGE_SIZE - 1) |
| 50 | |
| 51 | #ifdef _KERNEL |
| 52 | |
| 53 | #define NBPG PAGE_SIZE |
| 54 | #define PGSHIFT PAGE_SHIFT |
| 55 | #define PGOFSET PAGE_MASK |
| 56 | |
| 57 | #define UPAGES 4 /* pages of u-area */ |
| 58 | #define USPACE (UPAGES * PAGE_SIZE) /* total size of u-area */ |
| 59 | #define USPACE_ALIGN 0 /* u-area alignment 0-none */ |
| 60 | |
| 61 | #define NMBCLUSTERS (32 * 1024) /* max cluster allocation */ |
| 62 | |
| 63 | /* |
| 64 | * Fixed segments |
| 65 | */ |
| 66 | #define PPC_USER_SR 13 |
| 67 | #define PPC_KERNEL_SR 14 |
| 68 | #define PPC_KERNEL_SEG0 0xfffff0 |
| 69 | #define PPC_KERNEL_SEGMENT (PPC_KERNEL_SEG0 + PPC_KERNEL_SR) |
| 70 | #define PPC_USER_ADDR ((void *)(PPC_USER_SR << ADDR_SR_SHIFT)) |
| 71 | |
| 72 | #endif /* _KERNEL */ |
| 73 | |
| 74 | #endif /* _POWERPC_PARAM_H_ */ |