2 * Copyright (c) 2012-2014 Bastian Koppelmann C-Lab/University Paderborn
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 #include "qemu/osdep.h"
30 #if defined(CONFIG_SOFTMMU)
31 static int get_physical_address(CPUTriCoreState *env, hwaddr *physical,
32 int *prot, target_ulong address,
33 int rw, int access_type)
35 int ret = TLBRET_MATCH;
37 *physical = address & 0xFFFFFFFF;
38 *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
44 /* TODO: Add exeption support*/
45 static void raise_mmu_exception(CPUTriCoreState *env, target_ulong address,
46 int rw, int tlb_error)
50 int cpu_tricore_handle_mmu_fault(CPUState *cs, target_ulong address,
53 TriCoreCPU *cpu = TRICORE_CPU(cs);
54 CPUTriCoreState *env = &cpu->env;
61 access_type = ACCESS_INT;
62 ret = get_physical_address(env, &physical, &prot,
63 address, rw, access_type);
64 qemu_log_mask(CPU_LOG_MMU, "%s address=" TARGET_FMT_lx " ret %d physical " TARGET_FMT_plx
65 " prot %d\n", __func__, address, ret, physical, prot);
67 if (ret == TLBRET_MATCH) {
68 tlb_set_page(cs, address & TARGET_PAGE_MASK,
69 physical & TARGET_PAGE_MASK, prot | PAGE_EXEC,
70 mmu_idx, TARGET_PAGE_SIZE);
73 raise_mmu_exception(env, address, rw, ret);
80 TriCoreCPU *cpu_tricore_init(const char *cpu_model)
82 return TRICORE_CPU(cpu_generic_init(TYPE_TRICORE_CPU, cpu_model));
85 static void tricore_cpu_list_entry(gpointer data, gpointer user_data)
87 ObjectClass *oc = data;
88 CPUListState *s = user_data;
92 typename = object_class_get_name(oc);
93 name = g_strndup(typename, strlen(typename) - strlen("-" TYPE_TRICORE_CPU));
94 (*s->cpu_fprintf)(s->file, " %s\n",
99 void tricore_cpu_list(FILE *f, fprintf_function cpu_fprintf)
103 .cpu_fprintf = cpu_fprintf,
107 list = object_class_get_list(TYPE_TRICORE_CPU, false);
108 (*cpu_fprintf)(f, "Available CPUs:\n");
109 g_slist_foreach(list, tricore_cpu_list_entry, &s);
113 uint32_t psw_read(CPUTriCoreState *env)
115 /* clear all USB bits */
116 env->PSW &= 0xffffff;
117 /* now set them from the cache */
118 env->PSW |= ((env->PSW_USB_C != 0) << 31);
119 env->PSW |= ((env->PSW_USB_V & (1 << 31)) >> 1);
120 env->PSW |= ((env->PSW_USB_SV & (1 << 31)) >> 2);
121 env->PSW |= ((env->PSW_USB_AV & (1 << 31)) >> 3);
122 env->PSW |= ((env->PSW_USB_SAV & (1 << 31)) >> 4);
127 void psw_write(CPUTriCoreState *env, uint32_t val)
129 env->PSW_USB_C = (val & MASK_USB_C);
130 env->PSW_USB_V = (val & MASK_USB_V) << 1;
131 env->PSW_USB_SV = (val & MASK_USB_SV) << 2;
132 env->PSW_USB_AV = (val & MASK_USB_AV) << 3;
133 env->PSW_USB_SAV = (val & MASK_USB_SAV) << 4;