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[qemu/ar7.git] / target / moxie / cpu.h
blob8991aaef9a8dac56992771eb12af2301d0ac8bc8
1 /*
2 * Moxie emulation
4 * Copyright (c) 2008, 2010, 2013 Anthony Green
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 of the License, or (at your option) any later version.
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.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #ifndef MOXIE_CPU_H
21 #define MOXIE_CPU_H
23 #include "qemu-common.h"
25 #define TARGET_LONG_BITS 32
27 #define CPUArchState struct CPUMoxieState
29 #define MOXIE_EX_DIV0 0
30 #define MOXIE_EX_BAD 1
31 #define MOXIE_EX_IRQ 2
32 #define MOXIE_EX_SWI 3
33 #define MOXIE_EX_MMU_MISS 4
34 #define MOXIE_EX_BREAK 16
36 #include "exec/cpu-defs.h"
37 #include "fpu/softfloat.h"
39 #define TARGET_PAGE_BITS 12 /* 4k */
41 #define TARGET_PHYS_ADDR_SPACE_BITS 32
42 #define TARGET_VIRT_ADDR_SPACE_BITS 32
44 #define NB_MMU_MODES 1
46 typedef struct CPUMoxieState {
48 uint32_t flags; /* general execution flags */
49 uint32_t gregs[16]; /* general registers */
50 uint32_t sregs[256]; /* special registers */
51 uint32_t pc; /* program counter */
52 /* Instead of saving the cc value, we save the cmp arguments
53 and compute cc on demand. */
54 uint32_t cc_a; /* reg a for condition code calculation */
55 uint32_t cc_b; /* reg b for condition code calculation */
57 void *irq[8];
59 /* Fields up to this point are cleared by a CPU reset */
60 struct {} end_reset_fields;
62 CPU_COMMON
64 } CPUMoxieState;
66 #include "qom/cpu.h"
68 #define TYPE_MOXIE_CPU "moxie-cpu"
70 #define MOXIE_CPU_CLASS(klass) \
71 OBJECT_CLASS_CHECK(MoxieCPUClass, (klass), TYPE_MOXIE_CPU)
72 #define MOXIE_CPU(obj) \
73 OBJECT_CHECK(MoxieCPU, (obj), TYPE_MOXIE_CPU)
74 #define MOXIE_CPU_GET_CLASS(obj) \
75 OBJECT_GET_CLASS(MoxieCPUClass, (obj), TYPE_MOXIE_CPU)
77 /**
78 * MoxieCPUClass:
79 * @parent_reset: The parent class' reset handler.
81 * A Moxie CPU model.
83 typedef struct MoxieCPUClass {
84 /*< private >*/
85 CPUClass parent_class;
86 /*< public >*/
88 DeviceRealize parent_realize;
89 void (*parent_reset)(CPUState *cpu);
90 } MoxieCPUClass;
92 /**
93 * MoxieCPU:
94 * @env: #CPUMoxieState
96 * A Moxie CPU.
98 typedef struct MoxieCPU {
99 /*< private >*/
100 CPUState parent_obj;
101 /*< public >*/
103 CPUMoxieState env;
104 } MoxieCPU;
106 static inline MoxieCPU *moxie_env_get_cpu(CPUMoxieState *env)
108 return container_of(env, MoxieCPU, env);
111 #define ENV_GET_CPU(e) CPU(moxie_env_get_cpu(e))
113 #define ENV_OFFSET offsetof(MoxieCPU, env)
115 MoxieCPU *cpu_moxie_init(const char *cpu_model);
116 void moxie_cpu_do_interrupt(CPUState *cs);
117 void moxie_cpu_dump_state(CPUState *cpu, FILE *f,
118 fprintf_function cpu_fprintf, int flags);
119 hwaddr moxie_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
120 void moxie_translate_init(void);
121 int cpu_moxie_signal_handler(int host_signum, void *pinfo,
122 void *puc);
124 #define cpu_init(cpu_model) CPU(cpu_moxie_init(cpu_model))
126 #define cpu_signal_handler cpu_moxie_signal_handler
128 static inline int cpu_mmu_index(CPUMoxieState *env, bool ifetch)
130 return 0;
133 #include "exec/cpu-all.h"
135 static inline void cpu_get_tb_cpu_state(CPUMoxieState *env, target_ulong *pc,
136 target_ulong *cs_base, uint32_t *flags)
138 *pc = env->pc;
139 *cs_base = 0;
140 *flags = 0;
143 int moxie_cpu_handle_mmu_fault(CPUState *cpu, vaddr address,
144 int rw, int mmu_idx);
146 #endif /* MOXIE_CPU_H */