1139825Simp/*- 290643Sbenno * Copyright (C) 2002 Benno Rice. 390643Sbenno * All rights reserved. 490643Sbenno * 590643Sbenno * Redistribution and use in source and binary forms, with or without 690643Sbenno * modification, are permitted provided that the following conditions 790643Sbenno * are met: 890643Sbenno * 1. Redistributions of source code must retain the above copyright 990643Sbenno * notice, this list of conditions and the following disclaimer. 1090643Sbenno * 2. Redistributions in binary form must reproduce the above copyright 1190643Sbenno * notice, this list of conditions and the following disclaimer in the 1290643Sbenno * documentation and/or other materials provided with the distribution. 1390643Sbenno * 1490643Sbenno * THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR 1590643Sbenno * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1690643Sbenno * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1790643Sbenno * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 1890643Sbenno * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 1990643Sbenno * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 2090643Sbenno * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 2190643Sbenno * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 2290643Sbenno * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 2390643Sbenno * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2490643Sbenno * 2590643Sbenno * $FreeBSD: releng/10.3/sys/powerpc/include/sr.h 214574 2010-10-30 23:07:30Z nwhitehorn $ 2690643Sbenno */ 2790643Sbenno 2890643Sbenno#ifndef _MACHINE_SR_H_ 2990833Sobrien#define _MACHINE_SR_H_ 3090643Sbenno 3190643Sbenno/* 3290643Sbenno * Bit definitions for segment registers. 3390643Sbenno * 3490643Sbenno * PowerPC Microprocessor Family: The Programming Environments for 32-bit 3590643Sbenno * Microprocessors, section 2.3.5 3690643Sbenno */ 3790643Sbenno 3890643Sbenno#define SR_TYPE 0x80000000 /* Type selector */ 3990643Sbenno#define SR_KS 0x40000000 /* Supervisor-state protection key */ 4090643Sbenno#define SR_KP 0x20000000 /* User-state protection key */ 4190833Sobrien#define SR_N 0x10000000 /* No-execute protection */ 4290643Sbenno#define SR_VSID_MASK 0x00ffffff /* Virtual Segment ID mask */ 4390643Sbenno 44125687Sgrehan/* Kernel segment register usage */ 45126478Sgrehan#define USER_SR 12 46126478Sgrehan#define KERNEL_SR 13 47126478Sgrehan#define KERNEL2_SR 14 48204128Snwhitehorn#define KERNEL3_SR 15 49209975Snwhitehorn#define KERNEL_VSIDBITS 0xfffffUL 50125687Sgrehan#define KERNEL_SEGMENT (0xfffff0 + KERNEL_SR) 51126478Sgrehan#define KERNEL2_SEGMENT (0xfffff0 + KERNEL2_SR) 52125687Sgrehan#define EMPTY_SEGMENT 0xfffff0 53209975Snwhitehorn#ifdef __powerpc64__ 54209975Snwhitehorn#define USER_ADDR 0xcffffffff0000000UL 55209975Snwhitehorn#else 56209975Snwhitehorn#define USER_ADDR ((uintptr_t)USER_SR << ADDR_SR_SHFT) 57209975Snwhitehorn#endif 58209975Snwhitehorn#define SEGMENT_LENGTH 0x10000000UL 59209975Snwhitehorn#define SEGMENT_INVMASK 0x0fffffffUL 60209975Snwhitehorn#define SEGMENT_MASK ~SEGMENT_INVMASK 61125687Sgrehan 6290643Sbenno#endif /* !_MACHINE_SR_H_ */ 63