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qemu-e2k/target-tricore/cpu.h
Benjamin Herrenschmidt 97ed5ccdee tlb: Add "ifetch" argument to cpu_mmu_index() 
This is set to true when the index is for an instruction fetch
translation.

The core get_page_addr_code() sets it, as do the SOFTMMU_CODE_ACCESS
acessors.

All targets ignore it for now, and all other callers pass "false".

This will allow targets who wish to split the mmu index between
instruction and data accesses to do so. A subsequent patch will
do just that for PowerPC.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Message-Id: <1439796853-4410-2-git-send-email-benh@kernel.crashing.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-11 08:15:28 -07:00

400 lines
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/*
* TriCore emulation for qemu: main CPU struct.
*
* Copyright (c) 2012-2014 Bastian Koppelmann C-Lab/University Paderborn
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#if !defined(__TRICORE_CPU_H__)
#define __TRICORE_CPU_H__
#include "tricore-defs.h"
#include "config.h"
#include "qemu-common.h"
#include "exec/cpu-defs.h"
#include "fpu/softfloat.h"
#define ELF_MACHINE EM_TRICORE
#define CPUArchState struct CPUTriCoreState
struct CPUTriCoreState;
struct tricore_boot_info;
#define NB_MMU_MODES 3
typedef struct tricore_def_t tricore_def_t;
typedef struct CPUTriCoreState CPUTriCoreState;
struct CPUTriCoreState {
/* GPR Register */
uint32_t gpr_a[16];
uint32_t gpr_d[16];
/* CSFR Register */
uint32_t PCXI;
/* Frequently accessed PSW_USB bits are stored separately for efficiency.
This contains all the other bits. Use psw_{read,write} to access
the whole PSW. */
uint32_t PSW;
/* PSW flag cache for faster execution
*/
uint32_t PSW_USB_C;
uint32_t PSW_USB_V; /* Only if bit 31 set, then flag is set */
uint32_t PSW_USB_SV; /* Only if bit 31 set, then flag is set */
uint32_t PSW_USB_AV; /* Only if bit 31 set, then flag is set. */
uint32_t PSW_USB_SAV; /* Only if bit 31 set, then flag is set. */
uint32_t PC;
uint32_t SYSCON;
uint32_t CPU_ID;
uint32_t BIV;
uint32_t BTV;
uint32_t ISP;
uint32_t ICR;
uint32_t FCX;
uint32_t LCX;
uint32_t COMPAT;
/* Mem Protection Register */
uint32_t DPR0_0L;
uint32_t DPR0_0U;
uint32_t DPR0_1L;
uint32_t DPR0_1U;
uint32_t DPR0_2L;
uint32_t DPR0_2U;
uint32_t DPR0_3L;
uint32_t DPR0_3U;
uint32_t DPR1_0L;
uint32_t DPR1_0U;
uint32_t DPR1_1L;
uint32_t DPR1_1U;
uint32_t DPR1_2L;
uint32_t DPR1_2U;
uint32_t DPR1_3L;
uint32_t DPR1_3U;
uint32_t DPR2_0L;
uint32_t DPR2_0U;
uint32_t DPR2_1L;
uint32_t DPR2_1U;
uint32_t DPR2_2L;
uint32_t DPR2_2U;
uint32_t DPR2_3L;
uint32_t DPR2_3U;
uint32_t DPR3_0L;
uint32_t DPR3_0U;
uint32_t DPR3_1L;
uint32_t DPR3_1U;
uint32_t DPR3_2L;
uint32_t DPR3_2U;
uint32_t DPR3_3L;
uint32_t DPR3_3U;
uint32_t CPR0_0L;
uint32_t CPR0_0U;
uint32_t CPR0_1L;
uint32_t CPR0_1U;
uint32_t CPR0_2L;
uint32_t CPR0_2U;
uint32_t CPR0_3L;
uint32_t CPR0_3U;
uint32_t CPR1_0L;
uint32_t CPR1_0U;
uint32_t CPR1_1L;
uint32_t CPR1_1U;
uint32_t CPR1_2L;
uint32_t CPR1_2U;
uint32_t CPR1_3L;
uint32_t CPR1_3U;
uint32_t CPR2_0L;
uint32_t CPR2_0U;
uint32_t CPR2_1L;
uint32_t CPR2_1U;
uint32_t CPR2_2L;
uint32_t CPR2_2U;
uint32_t CPR2_3L;
uint32_t CPR2_3U;
uint32_t CPR3_0L;
uint32_t CPR3_0U;
uint32_t CPR3_1L;
uint32_t CPR3_1U;
uint32_t CPR3_2L;
uint32_t CPR3_2U;
uint32_t CPR3_3L;
uint32_t CPR3_3U;
uint32_t DPM0;
uint32_t DPM1;
uint32_t DPM2;
uint32_t DPM3;
uint32_t CPM0;
uint32_t CPM1;
uint32_t CPM2;
uint32_t CPM3;
/* Memory Management Registers */
uint32_t MMU_CON;
uint32_t MMU_ASI;
uint32_t MMU_TVA;
uint32_t MMU_TPA;
uint32_t MMU_TPX;
uint32_t MMU_TFA;
/* {1.3.1 only */
uint32_t BMACON;
uint32_t SMACON;
uint32_t DIEAR;
uint32_t DIETR;
uint32_t CCDIER;
uint32_t MIECON;
uint32_t PIEAR;
uint32_t PIETR;
uint32_t CCPIER;
/*} */
/* Debug Registers */
uint32_t DBGSR;
uint32_t EXEVT;
uint32_t CREVT;
uint32_t SWEVT;
uint32_t TR0EVT;
uint32_t TR1EVT;
uint32_t DMS;
uint32_t DCX;
uint32_t DBGTCR;
uint32_t CCTRL;
uint32_t CCNT;
uint32_t ICNT;
uint32_t M1CNT;
uint32_t M2CNT;
uint32_t M3CNT;
/* Floating Point Registers */
/* XXX: */
/* QEMU */
int error_code;
uint32_t hflags; /* CPU State */
CPU_COMMON
/* Internal CPU feature flags. */
uint64_t features;
const tricore_def_t *cpu_model;
void *irq[8];
struct QEMUTimer *timer; /* Internal timer */
};
#define MASK_PCXI_PCPN 0xff000000
#define MASK_PCXI_PIE 0x00800000
#define MASK_PCXI_UL 0x00400000
#define MASK_PCXI_PCXS 0x000f0000
#define MASK_PCXI_PCXO 0x0000ffff
#define MASK_PSW_USB 0xff000000
#define MASK_USB_C 0x80000000
#define MASK_USB_V 0x40000000
#define MASK_USB_SV 0x20000000
#define MASK_USB_AV 0x10000000
#define MASK_USB_SAV 0x08000000
#define MASK_PSW_PRS 0x00003000
#define MASK_PSW_IO 0x00000c00
#define MASK_PSW_IS 0x00000200
#define MASK_PSW_GW 0x00000100
#define MASK_PSW_CDE 0x00000080
#define MASK_PSW_CDC 0x0000007f
#define MASK_SYSCON_PRO_TEN 0x2
#define MASK_SYSCON_FCD_SF 0x1
#define MASK_CPUID_MOD 0xffff0000
#define MASK_CPUID_MOD_32B 0x0000ff00
#define MASK_CPUID_REV 0x000000ff
#define MASK_ICR_PIPN 0x00ff0000
#define MASK_ICR_IE 0x00000100
#define MASK_ICR_CCPN 0x000000ff
#define MASK_FCX_FCXS 0x000f0000
#define MASK_FCX_FCXO 0x0000ffff
#define MASK_LCX_LCXS 0x000f0000
#define MASK_LCX_LCX0 0x0000ffff
#define MASK_DBGSR_DE 0x1
#define MASK_DBGSR_HALT 0x6
#define MASK_DBGSR_SUSP 0x10
#define MASK_DBGSR_PREVSUSP 0x20
#define MASK_DBGSR_PEVT 0x40
#define MASK_DBGSR_EVTSRC 0x1f00
#define TRICORE_HFLAG_KUU 0x3
#define TRICORE_HFLAG_UM0 0x00002 /* user mode-0 flag */
#define TRICORE_HFLAG_UM1 0x00001 /* user mode-1 flag */
#define TRICORE_HFLAG_SM 0x00000 /* kernel mode flag */
enum tricore_features {
TRICORE_FEATURE_13,
TRICORE_FEATURE_131,
TRICORE_FEATURE_16,
TRICORE_FEATURE_161,
};
static inline int tricore_feature(CPUTriCoreState *env, int feature)
{
return (env->features & (1ULL << feature)) != 0;
}
/* TriCore Traps Classes*/
enum {
TRAPC_NONE = -1,
TRAPC_MMU = 0,
TRAPC_PROT = 1,
TRAPC_INSN_ERR = 2,
TRAPC_CTX_MNG = 3,
TRAPC_SYSBUS = 4,
TRAPC_ASSERT = 5,
TRAPC_SYSCALL = 6,
TRAPC_NMI = 7,
};
/* Class 0 TIN */
enum {
TIN0_VAF = 0,
TIN0_VAP = 1,
};
/* Class 1 TIN */
enum {
TIN1_PRIV = 1,
TIN1_MPR = 2,
TIN1_MPW = 3,
TIN1_MPX = 4,
TIN1_MPP = 5,
TIN1_MPN = 6,
TIN1_GRWP = 7,
};
/* Class 2 TIN */
enum {
TIN2_IOPC = 1,
TIN2_UOPC = 2,
TIN2_OPD = 3,
TIN2_ALN = 4,
TIN2_MEM = 5,
};
/* Class 3 TIN */
enum {
TIN3_FCD = 1,
TIN3_CDO = 2,
TIN3_CDU = 3,
TIN3_FCU = 4,
TIN3_CSU = 5,
TIN3_CTYP = 6,
TIN3_NEST = 7,
};
/* Class 4 TIN */
enum {
TIN4_PSE = 1,
TIN4_DSE = 2,
TIN4_DAE = 3,
TIN4_CAE = 4,
TIN4_PIE = 5,
TIN4_DIE = 6,
};
/* Class 5 TIN */
enum {
TIN5_OVF = 1,
TIN5_SOVF = 1,
};
/* Class 6 TIN
*
* Is always TIN6_SYS
*/
/* Class 7 TIN */
enum {
TIN7_NMI = 0,
};
uint32_t psw_read(CPUTriCoreState *env);
void psw_write(CPUTriCoreState *env, uint32_t val);
#include "cpu-qom.h"
#define MMU_USER_IDX 2
void tricore_cpu_list(FILE *f, fprintf_function cpu_fprintf);
#define cpu_exec cpu_tricore_exec
#define cpu_signal_handler cpu_tricore_signal_handler
#define cpu_list tricore_cpu_list
static inline int cpu_mmu_index(CPUTriCoreState *env, bool ifetch)
{
return 0;
}
#include "exec/cpu-all.h"
enum {
/* 1 bit to define user level / supervisor access */
ACCESS_USER = 0x00,
ACCESS_SUPER = 0x01,
/* 1 bit to indicate direction */
ACCESS_STORE = 0x02,
/* Type of instruction that generated the access */
ACCESS_CODE = 0x10, /* Code fetch access */
ACCESS_INT = 0x20, /* Integer load/store access */
ACCESS_FLOAT = 0x30, /* floating point load/store access */
};
void cpu_state_reset(CPUTriCoreState *s);
int cpu_tricore_exec(CPUState *cpu);
void tricore_tcg_init(void);
int cpu_tricore_signal_handler(int host_signum, void *pinfo, void *puc);
static inline void cpu_get_tb_cpu_state(CPUTriCoreState *env, target_ulong *pc,
target_ulong *cs_base, int *flags)
{
*pc = env->PC;
*cs_base = 0;
*flags = 0;
}
TriCoreCPU *cpu_tricore_init(const char *cpu_model);
#define cpu_init(cpu_model) CPU(cpu_tricore_init(cpu_model))
/* helpers.c */
int cpu_tricore_handle_mmu_fault(CPUState *cpu, target_ulong address,
int rw, int mmu_idx);
#define cpu_handle_mmu_fault cpu_tricore_handle_mmu_fault
#include "exec/exec-all.h"
#endif /*__TRICORE_CPU_H__ */
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