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/systm.h> 39 40 #include <machine/cpu.h> 41 #include <machine/reg.h> 42 43 #ifdef DDB 44 #include <ddb/ddb.h> 45 46 #if __ARM_ARCH >= 6 47 48 DB_SHOW_COMMAND(cp15, db_show_cp15) 49 { 50 u_int reg; 51 52 reg = cp15_midr_get(); 53 db_printf("Cpu ID: 0x%08x\n", reg); 54 reg = cp15_ctr_get(); 55 db_printf("Current Cache Lvl ID: 0x%08x\n",reg); 56 57 reg = cp15_sctlr_get(); 58 db_printf("Ctrl: 0x%08x\n",reg); 59 reg = cp15_actlr_get(); 60 db_printf("Aux Ctrl: 0x%08x\n",reg); 61 62 reg = cp15_id_pfr0_get(); 63 db_printf("Processor Feat 0: 0x%08x\n", reg); 64 reg = cp15_id_pfr1_get(); 65 db_printf("Processor Feat 1: 0x%08x\n", reg); 66 reg = cp15_id_dfr0_get(); 67 db_printf("Debug Feat 0: 0x%08x\n", reg); 68 reg = cp15_id_afr0_get(); 69 db_printf("Auxiliary Feat 0: 0x%08x\n", reg); 70 reg = cp15_id_mmfr0_get(); 71 db_printf("Memory Model Feat 0: 0x%08x\n", reg); 72 reg = cp15_id_mmfr1_get(); 73 db_printf("Memory Model Feat 1: 0x%08x\n", reg); 74 reg = cp15_id_mmfr2_get(); 75 db_printf("Memory Model Feat 2: 0x%08x\n", reg); 76 reg = cp15_id_mmfr3_get(); 77 db_printf("Memory Model Feat 3: 0x%08x\n", reg); 78 reg = cp15_ttbr_get(); 79 db_printf("TTB0: 0x%08x\n", reg); 80 } 81 82 DB_SHOW_COMMAND(vtop, db_show_vtop) 83 { 84 u_int reg; 85 86 if (have_addr) { 87 cp15_ats1cpr_set(addr); 88 reg = cp15_par_get(); 89 db_printf("Physical address reg: 0x%08x\n",reg); 90 } else 91 db_printf("show vtop <virt_addr>\n"); 92 } 93 #endif /* __ARM_ARCH >= 6 */ 94 #endif /* DDB */ 95 96 int 97 fill_regs(struct thread *td, struct reg *regs) 98 { 99 struct trapframe *tf = td->td_frame; 100 bcopy(&tf->tf_r0, regs->r, sizeof(regs->r)); 101 regs->r_sp = tf->tf_usr_sp; 102 regs->r_lr = tf->tf_usr_lr; 103 regs->r_pc = tf->tf_pc; 104 regs->r_cpsr = tf->tf_spsr; 105 return (0); 106 } 107 108 int 109 fill_fpregs(struct thread *td, struct fpreg *regs) 110 { 111 bzero(regs, sizeof(*regs)); 112 return (0); 113 } 114 115 int 116 set_regs(struct thread *td, struct reg *regs) 117 { 118 struct trapframe *tf = td->td_frame; 119 120 bcopy(regs->r, &tf->tf_r0, sizeof(regs->r)); 121 tf->tf_usr_sp = regs->r_sp; 122 tf->tf_usr_lr = regs->r_lr; 123 tf->tf_pc = regs->r_pc; 124 tf->tf_spsr &= ~PSR_FLAGS; 125 tf->tf_spsr |= regs->r_cpsr & PSR_FLAGS; 126 return (0); 127 } 128 129 int 130 set_fpregs(struct thread *td, struct fpreg *regs) 131 { 132 return (0); 133 } 134 135 int 136 fill_dbregs(struct thread *td, struct dbreg *regs) 137 { 138 139 bzero(regs, sizeof(*regs)); 140 return (0); 141 } 142 143 int 144 set_dbregs(struct thread *td, struct dbreg *regs) 145 { 146 return (0); 147 } 148