2 * TriCore emulation for qemu: main CPU struct.
4 * Copyright (c) 2012-2014 Bastian Koppelmann C-Lab/University Paderborn
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 Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
19 #if !defined(__TRICORE_CPU_H__)
20 #define __TRICORE_CPU_H__
22 #include "tricore-defs.h"
23 #include "qemu-common.h"
24 #include "exec/cpu-defs.h"
25 #include "fpu/softfloat.h"
27 #define CPUArchState struct CPUTriCoreState
29 struct CPUTriCoreState;
31 struct tricore_boot_info;
33 #define NB_MMU_MODES 3
35 typedef struct tricore_def_t tricore_def_t;
37 typedef struct CPUTriCoreState CPUTriCoreState;
38 struct CPUTriCoreState {
44 /* Frequently accessed PSW_USB bits are stored separately for efficiency.
45 This contains all the other bits. Use psw_{read,write} to access
49 /* PSW flag cache for faster execution
52 uint32_t PSW_USB_V; /* Only if bit 31 set, then flag is set */
53 uint32_t PSW_USB_SV; /* Only if bit 31 set, then flag is set */
54 uint32_t PSW_USB_AV; /* Only if bit 31 set, then flag is set. */
55 uint32_t PSW_USB_SAV; /* Only if bit 31 set, then flag is set. */
68 /* Mem Protection Register */
151 /* Memory Management Registers */
169 /* Debug Registers */
185 /* Floating Point Registers */
190 uint32_t hflags; /* CPU State */
194 /* Internal CPU feature flags. */
197 const tricore_def_t *cpu_model;
199 struct QEMUTimer *timer; /* Internal timer */
202 #define MASK_PCXI_PCPN 0xff000000
203 #define MASK_PCXI_PIE 0x00800000
204 #define MASK_PCXI_UL 0x00400000
205 #define MASK_PCXI_PCXS 0x000f0000
206 #define MASK_PCXI_PCXO 0x0000ffff
208 #define MASK_PSW_USB 0xff000000
209 #define MASK_USB_C 0x80000000
210 #define MASK_USB_V 0x40000000
211 #define MASK_USB_SV 0x20000000
212 #define MASK_USB_AV 0x10000000
213 #define MASK_USB_SAV 0x08000000
214 #define MASK_PSW_PRS 0x00003000
215 #define MASK_PSW_IO 0x00000c00
216 #define MASK_PSW_IS 0x00000200
217 #define MASK_PSW_GW 0x00000100
218 #define MASK_PSW_CDE 0x00000080
219 #define MASK_PSW_CDC 0x0000007f
221 #define MASK_SYSCON_PRO_TEN 0x2
222 #define MASK_SYSCON_FCD_SF 0x1
224 #define MASK_CPUID_MOD 0xffff0000
225 #define MASK_CPUID_MOD_32B 0x0000ff00
226 #define MASK_CPUID_REV 0x000000ff
228 #define MASK_ICR_PIPN 0x00ff0000
229 #define MASK_ICR_IE 0x00000100
230 #define MASK_ICR_CCPN 0x000000ff
232 #define MASK_FCX_FCXS 0x000f0000
233 #define MASK_FCX_FCXO 0x0000ffff
235 #define MASK_LCX_LCXS 0x000f0000
236 #define MASK_LCX_LCX0 0x0000ffff
238 #define MASK_DBGSR_DE 0x1
239 #define MASK_DBGSR_HALT 0x6
240 #define MASK_DBGSR_SUSP 0x10
241 #define MASK_DBGSR_PREVSUSP 0x20
242 #define MASK_DBGSR_PEVT 0x40
243 #define MASK_DBGSR_EVTSRC 0x1f00
245 #define TRICORE_HFLAG_KUU 0x3
246 #define TRICORE_HFLAG_UM0 0x00002 /* user mode-0 flag */
247 #define TRICORE_HFLAG_UM1 0x00001 /* user mode-1 flag */
248 #define TRICORE_HFLAG_SM 0x00000 /* kernel mode flag */
250 enum tricore_features {
257 static inline int tricore_feature(CPUTriCoreState *env, int feature)
259 return (env->features & (1ULL << feature)) != 0;
262 /* TriCore Traps Classes*/
339 uint32_t psw_read(CPUTriCoreState *env);
340 void psw_write(CPUTriCoreState *env, uint32_t val);
343 #define MMU_USER_IDX 2
345 void tricore_cpu_list(FILE *f, fprintf_function cpu_fprintf);
347 #define cpu_exec cpu_tricore_exec
348 #define cpu_signal_handler cpu_tricore_signal_handler
349 #define cpu_list tricore_cpu_list
351 static inline int cpu_mmu_index(CPUTriCoreState *env, bool ifetch)
358 #include "exec/cpu-all.h"
361 /* 1 bit to define user level / supervisor access */
364 /* 1 bit to indicate direction */
366 /* Type of instruction that generated the access */
367 ACCESS_CODE = 0x10, /* Code fetch access */
368 ACCESS_INT = 0x20, /* Integer load/store access */
369 ACCESS_FLOAT = 0x30, /* floating point load/store access */
372 void cpu_state_reset(CPUTriCoreState *s);
373 int cpu_tricore_exec(CPUState *cpu);
374 void tricore_tcg_init(void);
375 int cpu_tricore_signal_handler(int host_signum, void *pinfo, void *puc);
377 static inline void cpu_get_tb_cpu_state(CPUTriCoreState *env, target_ulong *pc,
378 target_ulong *cs_base, int *flags)
385 TriCoreCPU *cpu_tricore_init(const char *cpu_model);
387 #define cpu_init(cpu_model) CPU(cpu_tricore_init(cpu_model))
391 int cpu_tricore_handle_mmu_fault(CPUState *cpu, target_ulong address,
392 int rw, int mmu_idx);
393 #define cpu_handle_mmu_fault cpu_tricore_handle_mmu_fault
395 #include "exec/exec-all.h"
397 #endif /*__TRICORE_CPU_H__ */