1 /* $NetBSD: arm32_machdep.c,v 1.44 2004/03/24 15:34:47 atatat Exp $ */ 2 3 /*- 4 * Copyright (c) 2004 Olivier Houchard 5 * Copyright (c) 1994-1998 Mark Brinicombe. 6 * Copyright (c) 1994 Brini. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include "opt_ddb.h" 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include <sys/param.h> 37 #include <sys/proc.h> 38 #include <sys/reg.h> 39 #include <sys/systm.h> 40 41 #include <machine/cpu.h> 42 43 #ifdef DDB 44 #include <ddb/ddb.h> 45 46 DB_SHOW_COMMAND(cp15, db_show_cp15) 47 { 48 u_int reg; 49 50 reg = cp15_midr_get(); 51 db_printf("Cpu ID: 0x%08x\n", reg); 52 reg = cp15_ctr_get(); 53 db_printf("Current Cache Lvl ID: 0x%08x\n",reg); 54 55 reg = cp15_sctlr_get(); 56 db_printf("Ctrl: 0x%08x\n",reg); 57 reg = cp15_actlr_get(); 58 db_printf("Aux Ctrl: 0x%08x\n",reg); 59 60 reg = cp15_id_pfr0_get(); 61 db_printf("Processor Feat 0: 0x%08x\n", reg); 62 reg = cp15_id_pfr1_get(); 63 db_printf("Processor Feat 1: 0x%08x\n", reg); 64 reg = cp15_id_dfr0_get(); 65 db_printf("Debug Feat 0: 0x%08x\n", reg); 66 reg = cp15_id_afr0_get(); 67 db_printf("Auxiliary Feat 0: 0x%08x\n", reg); 68 reg = cp15_id_mmfr0_get(); 69 db_printf("Memory Model Feat 0: 0x%08x\n", reg); 70 reg = cp15_id_mmfr1_get(); 71 db_printf("Memory Model Feat 1: 0x%08x\n", reg); 72 reg = cp15_id_mmfr2_get(); 73 db_printf("Memory Model Feat 2: 0x%08x\n", reg); 74 reg = cp15_id_mmfr3_get(); 75 db_printf("Memory Model Feat 3: 0x%08x\n", reg); 76 reg = cp15_ttbr_get(); 77 db_printf("TTB0: 0x%08x\n", reg); 78 } 79 80 DB_SHOW_COMMAND(vtop, db_show_vtop) 81 { 82 u_int reg; 83 84 if (have_addr) { 85 cp15_ats1cpr_set(addr); 86 reg = cp15_par_get(); 87 db_printf("Physical address reg: 0x%08x\n",reg); 88 } else 89 db_printf("show vtop <virt_addr>\n"); 90 } 91 #endif /* DDB */ 92 93 int 94 fill_regs(struct thread *td, struct reg *regs) 95 { 96 struct trapframe *tf = td->td_frame; 97 bcopy(&tf->tf_r0, regs->r, sizeof(regs->r)); 98 regs->r_sp = tf->tf_usr_sp; 99 regs->r_lr = tf->tf_usr_lr; 100 regs->r_pc = tf->tf_pc; 101 regs->r_cpsr = tf->tf_spsr; 102 return (0); 103 } 104 105 int 106 fill_fpregs(struct thread *td, struct fpreg *regs) 107 { 108 bzero(regs, sizeof(*regs)); 109 return (0); 110 } 111 112 int 113 set_regs(struct thread *td, struct reg *regs) 114 { 115 struct trapframe *tf = td->td_frame; 116 117 bcopy(regs->r, &tf->tf_r0, sizeof(regs->r)); 118 tf->tf_usr_sp = regs->r_sp; 119 tf->tf_usr_lr = regs->r_lr; 120 tf->tf_pc = regs->r_pc; 121 tf->tf_spsr &= ~PSR_FLAGS; 122 tf->tf_spsr |= regs->r_cpsr & PSR_FLAGS; 123 return (0); 124 } 125 126 int 127 set_fpregs(struct thread *td, struct fpreg *regs) 128 { 129 return (0); 130 } 131 132 int 133 fill_dbregs(struct thread *td, struct dbreg *regs) 134 { 135 136 bzero(regs, sizeof(*regs)); 137 return (0); 138 } 139 140 int 141 set_dbregs(struct thread *td, struct dbreg *regs) 142 { 143 return (0); 144 } 145