blob: 5f46ba801eefe6dfb1d8dcc84f9e71b87db0865b [file] [log] [blame]
Richard Henderson61766fe2016-12-15 11:26:14 -08001/*
2 * QEMU HPPA CPU
3 *
4 * Copyright (c) 2016 Richard Henderson <rth@twiddle.net>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see
18 * <http://www.gnu.org/licenses/lgpl-2.1.html>
19 */
20
21#include "qemu/osdep.h"
22#include "qapi/error.h"
Markus Armbruster04424282019-04-17 21:17:57 +020023#include "qemu/qemu-print.h"
Philippe Mathieu-Daudéb8012ec2022-02-07 09:27:54 +010024#include "qemu/timer.h"
Richard Henderson61766fe2016-12-15 11:26:14 -080025#include "cpu.h"
Markus Armbruster0b8fa322019-05-23 16:35:07 +020026#include "qemu/module.h"
Richard Henderson61766fe2016-12-15 11:26:14 -080027#include "exec/exec-all.h"
Alex Bennée24f91e82018-01-19 18:24:22 +000028#include "fpu/softfloat.h"
Richard Henderson61766fe2016-12-15 11:26:14 -080029
30
31static void hppa_cpu_set_pc(CPUState *cs, vaddr value)
32{
33 HPPACPU *cpu = HPPA_CPU(cs);
34
35 cpu->env.iaoq_f = value;
36 cpu->env.iaoq_b = value + 4;
37}
38
Richard Henderson04a37d42020-10-29 12:30:01 -070039static void hppa_cpu_synchronize_from_tb(CPUState *cs,
40 const TranslationBlock *tb)
Richard Henderson61766fe2016-12-15 11:26:14 -080041{
42 HPPACPU *cpu = HPPA_CPU(cs);
43
Richard Hendersonc301f342017-10-21 22:53:35 -070044#ifdef CONFIG_USER_ONLY
Richard Henderson61766fe2016-12-15 11:26:14 -080045 cpu->env.iaoq_f = tb->pc;
46 cpu->env.iaoq_b = tb->cs_base;
Richard Hendersonc301f342017-10-21 22:53:35 -070047#else
48 /* Recover the IAOQ values from the GVA + PRIV. */
49 uint32_t priv = (tb->flags >> TB_FLAG_PRIV_SHIFT) & 3;
50 target_ulong cs_base = tb->cs_base;
51 target_ulong iasq_f = cs_base & ~0xffffffffull;
52 int32_t diff = cs_base;
53
54 cpu->env.iasq_f = iasq_f;
55 cpu->env.iaoq_f = (tb->pc & ~iasq_f) + priv;
56 if (diff) {
57 cpu->env.iaoq_b = cpu->env.iaoq_f + diff;
58 }
59#endif
60
Richard Henderson3d68ee72017-10-09 10:17:24 -070061 cpu->env.psw_n = (tb->flags & PSW_N) != 0;
Richard Henderson61766fe2016-12-15 11:26:14 -080062}
63
Richard Henderson4f5f2542017-12-28 17:36:45 -080064static bool hppa_cpu_has_work(CPUState *cs)
65{
Helge Deller4a4554c2022-01-05 23:09:04 +010066 return cs->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI);
Richard Henderson4f5f2542017-12-28 17:36:45 -080067}
68
Richard Henderson61766fe2016-12-15 11:26:14 -080069static void hppa_cpu_disas_set_info(CPUState *cs, disassemble_info *info)
70{
71 info->mach = bfd_mach_hppa20;
72 info->print_insn = print_insn_hppa;
73}
74
Claudio Fontana8535dd72021-02-04 17:39:19 +010075#ifndef CONFIG_USER_ONLY
Richard Hendersonfa947a62021-07-29 10:45:10 -100076static void QEMU_NORETURN
77hppa_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
78 MMUAccessType access_type, int mmu_idx,
79 uintptr_t retaddr)
Richard Henderson08aec8b2017-10-29 16:31:08 +010080{
81 HPPACPU *cpu = HPPA_CPU(cs);
82 CPUHPPAState *env = &cpu->env;
83
84 cs->exception_index = EXCP_UNALIGN;
85 if (env->psw & PSW_Q) {
86 /* ??? Needs tweaking for hppa64. */
87 env->cr[CR_IOR] = addr;
88 env->cr[CR_ISR] = addr >> 32;
89 }
90
91 cpu_loop_exit_restore(cs, retaddr);
92}
Claudio Fontana8535dd72021-02-04 17:39:19 +010093#endif /* CONFIG_USER_ONLY */
Richard Henderson08aec8b2017-10-29 16:31:08 +010094
Richard Henderson61766fe2016-12-15 11:26:14 -080095static void hppa_cpu_realizefn(DeviceState *dev, Error **errp)
96{
97 CPUState *cs = CPU(dev);
98 HPPACPUClass *acc = HPPA_CPU_GET_CLASS(dev);
99 Error *local_err = NULL;
100
101 cpu_exec_realizefn(cs, &local_err);
102 if (local_err != NULL) {
103 error_propagate(errp, local_err);
104 return;
105 }
106
107 qemu_init_vcpu(cs);
108 acc->parent_realize(dev, errp);
Richard Henderson49c29d62017-12-28 17:50:14 -0800109
110#ifndef CONFIG_USER_ONLY
111 {
112 HPPACPU *cpu = HPPA_CPU(cs);
113 cpu->alarm_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
114 hppa_cpu_alarm_timer, cpu);
115 }
116#endif
Richard Henderson61766fe2016-12-15 11:26:14 -0800117}
118
Richard Henderson61766fe2016-12-15 11:26:14 -0800119static void hppa_cpu_initfn(Object *obj)
120{
121 CPUState *cs = CPU(obj);
122 HPPACPU *cpu = HPPA_CPU(obj);
123 CPUHPPAState *env = &cpu->env;
124
Richard Henderson7506ed92019-03-28 11:26:22 -1000125 cpu_set_cpustate_pointers(cpu);
Richard Henderson1a19da02017-10-11 13:19:11 -0700126 cs->exception_index = -1;
Richard Henderson61766fe2016-12-15 11:26:14 -0800127 cpu_hppa_loaded_fr0(env);
Richard Henderson1a19da02017-10-11 13:19:11 -0700128 cpu_hppa_put_psw(env, PSW_W);
Richard Henderson61766fe2016-12-15 11:26:14 -0800129}
130
Igor Mammedov8fc24ad2017-08-24 18:31:33 +0200131static ObjectClass *hppa_cpu_class_by_name(const char *cpu_model)
Richard Henderson61766fe2016-12-15 11:26:14 -0800132{
Igor Mammedov8fc24ad2017-08-24 18:31:33 +0200133 return object_class_by_name(TYPE_HPPA_CPU);
Richard Henderson61766fe2016-12-15 11:26:14 -0800134}
135
Philippe Mathieu-Daudé8b80bd22021-05-17 12:51:31 +0200136#ifndef CONFIG_USER_ONLY
137#include "hw/core/sysemu-cpu-ops.h"
138
139static const struct SysemuCPUOps hppa_sysemu_ops = {
Philippe Mathieu-Daudé08928c62021-05-17 12:51:37 +0200140 .get_phys_page_debug = hppa_cpu_get_phys_page_debug,
Philippe Mathieu-Daudé8b80bd22021-05-17 12:51:31 +0200141};
142#endif
143
Claudio Fontana78271682021-02-04 17:39:23 +0100144#include "hw/core/tcg-cpu-ops.h"
145
Richard Henderson11906552021-02-27 15:21:17 -0800146static const struct TCGCPUOps hppa_tcg_ops = {
Claudio Fontana78271682021-02-04 17:39:23 +0100147 .initialize = hppa_translate_init,
148 .synchronize_from_tb = hppa_cpu_synchronize_from_tb,
Claudio Fontana78271682021-02-04 17:39:23 +0100149
150#ifndef CONFIG_USER_ONLY
Richard Henderson860e0b92021-09-14 16:39:34 -0700151 .tlb_fill = hppa_cpu_tlb_fill,
Philippe Mathieu-Daudé68fa1782021-09-11 18:54:19 +0200152 .cpu_exec_interrupt = hppa_cpu_exec_interrupt,
Claudio Fontana78271682021-02-04 17:39:23 +0100153 .do_interrupt = hppa_cpu_do_interrupt,
154 .do_unaligned_access = hppa_cpu_do_unaligned_access,
155#endif /* !CONFIG_USER_ONLY */
156};
157
Richard Henderson61766fe2016-12-15 11:26:14 -0800158static void hppa_cpu_class_init(ObjectClass *oc, void *data)
159{
160 DeviceClass *dc = DEVICE_CLASS(oc);
161 CPUClass *cc = CPU_CLASS(oc);
162 HPPACPUClass *acc = HPPA_CPU_CLASS(oc);
163
Philippe Mathieu-Daudébf853882018-01-13 23:04:12 -0300164 device_class_set_parent_realize(dc, hppa_cpu_realizefn,
165 &acc->parent_realize);
Richard Henderson61766fe2016-12-15 11:26:14 -0800166
Igor Mammedov8fc24ad2017-08-24 18:31:33 +0200167 cc->class_by_name = hppa_cpu_class_by_name;
Richard Henderson4f5f2542017-12-28 17:36:45 -0800168 cc->has_work = hppa_cpu_has_work;
Richard Henderson61766fe2016-12-15 11:26:14 -0800169 cc->dump_state = hppa_cpu_dump_state;
170 cc->set_pc = hppa_cpu_set_pc;
Richard Henderson61766fe2016-12-15 11:26:14 -0800171 cc->gdb_read_register = hppa_cpu_gdb_read_register;
172 cc->gdb_write_register = hppa_cpu_gdb_write_register;
Richard Henderson3c7bef02019-04-02 15:30:10 +0700173#ifndef CONFIG_USER_ONLY
Richard Hendersonc6436032017-11-20 11:06:04 +0100174 dc->vmsd = &vmstate_hppa_cpu;
Philippe Mathieu-Daudé8b80bd22021-05-17 12:51:31 +0200175 cc->sysemu_ops = &hppa_sysemu_ops;
Helge Deller813dff12017-10-01 22:11:45 +0200176#endif
Richard Henderson61766fe2016-12-15 11:26:14 -0800177 cc->disas_set_info = hppa_cpu_disas_set_info;
Richard Henderson61766fe2016-12-15 11:26:14 -0800178 cc->gdb_num_core_regs = 128;
Claudio Fontana78271682021-02-04 17:39:23 +0100179 cc->tcg_ops = &hppa_tcg_ops;
Richard Henderson61766fe2016-12-15 11:26:14 -0800180}
181
182static const TypeInfo hppa_cpu_type_info = {
183 .name = TYPE_HPPA_CPU,
184 .parent = TYPE_CPU,
185 .instance_size = sizeof(HPPACPU),
186 .instance_init = hppa_cpu_initfn,
187 .abstract = false,
188 .class_size = sizeof(HPPACPUClass),
189 .class_init = hppa_cpu_class_init,
190};
191
192static void hppa_cpu_register_types(void)
193{
194 type_register_static(&hppa_cpu_type_info);
195}
196
197type_init(hppa_cpu_register_types)