[qemu.git] / target-microblaze / cpu.h

/*
 *  MicroBlaze virtual CPU header
 *
 *  Copyright (c) 2009 Edgar E. Iglesias
 *
 * 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
 * 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/>.
 */
#ifndef CPU_MICROBLAZE_H
#define CPU_MICROBLAZE_H

#define TARGET_LONG_BITS 32

#define CPUState struct CPUMBState

#include "cpu-defs.h"
#include "softfloat.h"
struct CPUMBState;
#if !defined(CONFIG_USER_ONLY)
#include "mmu.h"
#endif

#define TARGET_HAS_ICE 1

#define ELF_MACHINE	EM_MICROBLAZE

#define EXCP_NMI        1
#define EXCP_MMU        2
#define EXCP_IRQ        3
#define EXCP_BREAK      4
#define EXCP_HW_BREAK   5
#define EXCP_HW_EXCP    6

/* Register aliases. R0 - R15 */
#define R_SP     1
#define SR_PC    0
#define SR_MSR   1
#define SR_EAR   3
#define SR_ESR   5
#define SR_FSR   7
#define SR_BTR   0xb
#define SR_EDR   0xd

/* MSR flags.  */
#define MSR_BE  (1<<0) /* 0x001 */
#define MSR_IE  (1<<1) /* 0x002 */
#define MSR_C   (1<<2) /* 0x004 */
#define MSR_BIP (1<<3) /* 0x008 */
#define MSR_FSL (1<<4) /* 0x010 */
#define MSR_ICE (1<<5) /* 0x020 */
#define MSR_DZ  (1<<6) /* 0x040 */
#define MSR_DCE (1<<7) /* 0x080 */
#define MSR_EE  (1<<8) /* 0x100 */
#define MSR_EIP (1<<9) /* 0x200 */
#define MSR_CC  (1<<31)

/* Machine State Register (MSR) Fields */
#define MSR_UM (1<<11) /* User Mode */
#define MSR_UMS        (1<<12) /* User Mode Save */
#define MSR_VM (1<<13) /* Virtual Mode */
#define MSR_VMS        (1<<14) /* Virtual Mode Save */

#define MSR_KERNEL      MSR_EE|MSR_VM
//#define MSR_USER     MSR_KERNEL|MSR_UM|MSR_IE
#define MSR_KERNEL_VMS  MSR_EE|MSR_VMS
//#define MSR_USER_VMS MSR_KERNEL_VMS|MSR_UMS|MSR_IE

/* Exception State Register (ESR) Fields */
#define          ESR_DIZ       (1<<11) /* Zone Protection */
#define          ESR_S         (1<<10) /* Store instruction */

#define          ESR_EC_FSL             0
#define          ESR_EC_UNALIGNED_DATA  1
#define          ESR_EC_ILLEGAL_OP      2
#define          ESR_EC_INSN_BUS        3
#define          ESR_EC_DATA_BUS        4
#define          ESR_EC_DIVZERO         5
#define          ESR_EC_FPU             6
#define          ESR_EC_PRIVINSN        7
#define          ESR_EC_DATA_STORAGE    8
#define          ESR_EC_INSN_STORAGE    9
#define          ESR_EC_DATA_TLB        10
#define          ESR_EC_INSN_TLB        11

/* Floating Point Status Register (FSR) Bits */
#define FSR_IO          (1<<4) /* Invalid operation */
#define FSR_DZ          (1<<3) /* Divide-by-zero */
#define FSR_OF          (1<<2) /* Overflow */
#define FSR_UF          (1<<1) /* Underflow */
#define FSR_DO          (1<<0) /* Denormalized operand error */

/* Version reg.  */
/* Basic PVR mask */
#define PVR0_PVR_FULL_MASK              0x80000000
#define PVR0_USE_BARREL_MASK            0x40000000
#define PVR0_USE_DIV_MASK               0x20000000
#define PVR0_USE_HW_MUL_MASK            0x10000000
#define PVR0_USE_FPU_MASK               0x08000000
#define PVR0_USE_EXC_MASK               0x04000000
#define PVR0_USE_ICACHE_MASK            0x02000000
#define PVR0_USE_DCACHE_MASK            0x01000000
#define PVR0_USE_MMU                    0x00800000      /* new */
#define PVR0_USE_BTC			0x00400000
#define PVR0_ENDI			0x00200000
#define PVR0_FAULT			0x00100000
#define PVR0_VERSION_MASK               0x0000FF00
#define PVR0_USER1_MASK                 0x000000FF

/* User 2 PVR mask */
#define PVR1_USER2_MASK                 0xFFFFFFFF

/* Configuration PVR masks */
#define PVR2_D_OPB_MASK                 0x80000000
#define PVR2_D_LMB_MASK                 0x40000000
#define PVR2_I_OPB_MASK                 0x20000000
#define PVR2_I_LMB_MASK                 0x10000000
#define PVR2_INTERRUPT_IS_EDGE_MASK     0x08000000
#define PVR2_EDGE_IS_POSITIVE_MASK      0x04000000
#define PVR2_D_PLB_MASK                 0x02000000      /* new */
#define PVR2_I_PLB_MASK                 0x01000000      /* new */
#define PVR2_INTERCONNECT               0x00800000      /* new */
#define PVR2_USE_EXTEND_FSL             0x00080000      /* new */
#define PVR2_USE_FSL_EXC                0x00040000      /* new */
#define PVR2_USE_MSR_INSTR              0x00020000
#define PVR2_USE_PCMP_INSTR             0x00010000
#define PVR2_AREA_OPTIMISED             0x00008000
#define PVR2_USE_BARREL_MASK            0x00004000
#define PVR2_USE_DIV_MASK               0x00002000
#define PVR2_USE_HW_MUL_MASK            0x00001000
#define PVR2_USE_FPU_MASK               0x00000800
#define PVR2_USE_MUL64_MASK             0x00000400
#define PVR2_USE_FPU2_MASK              0x00000200      /* new */
#define PVR2_USE_IPLBEXC                0x00000100
#define PVR2_USE_DPLBEXC                0x00000080
#define PVR2_OPCODE_0x0_ILL_MASK        0x00000040
#define PVR2_UNALIGNED_EXC_MASK         0x00000020
#define PVR2_ILL_OPCODE_EXC_MASK        0x00000010
#define PVR2_IOPB_BUS_EXC_MASK          0x00000008
#define PVR2_DOPB_BUS_EXC_MASK          0x00000004
#define PVR2_DIV_ZERO_EXC_MASK          0x00000002
#define PVR2_FPU_EXC_MASK               0x00000001

/* Debug and exception PVR masks */
#define PVR3_DEBUG_ENABLED_MASK         0x80000000
#define PVR3_NUMBER_OF_PC_BRK_MASK      0x1E000000
#define PVR3_NUMBER_OF_RD_ADDR_BRK_MASK 0x00380000
#define PVR3_NUMBER_OF_WR_ADDR_BRK_MASK 0x0000E000
#define PVR3_FSL_LINKS_MASK             0x00000380

/* ICache config PVR masks */
#define PVR4_USE_ICACHE_MASK            0x80000000
#define PVR4_ICACHE_ADDR_TAG_BITS_MASK  0x7C000000
#define PVR4_ICACHE_USE_FSL_MASK        0x02000000
#define PVR4_ICACHE_ALLOW_WR_MASK       0x01000000
#define PVR4_ICACHE_LINE_LEN_MASK       0x00E00000
#define PVR4_ICACHE_BYTE_SIZE_MASK      0x001F0000

/* DCache config PVR masks */
#define PVR5_USE_DCACHE_MASK            0x80000000
#define PVR5_DCACHE_ADDR_TAG_BITS_MASK  0x7C000000
#define PVR5_DCACHE_USE_FSL_MASK        0x02000000
#define PVR5_DCACHE_ALLOW_WR_MASK       0x01000000
#define PVR5_DCACHE_LINE_LEN_MASK       0x00E00000
#define PVR5_DCACHE_BYTE_SIZE_MASK      0x001F0000
#define PVR5_DCACHE_WRITEBACK_MASK      0x00004000

/* ICache base address PVR mask */
#define PVR6_ICACHE_BASEADDR_MASK       0xFFFFFFFF

/* ICache high address PVR mask */
#define PVR7_ICACHE_HIGHADDR_MASK       0xFFFFFFFF

/* DCache base address PVR mask */
#define PVR8_DCACHE_BASEADDR_MASK       0xFFFFFFFF

/* DCache high address PVR mask */
#define PVR9_DCACHE_HIGHADDR_MASK       0xFFFFFFFF

/* Target family PVR mask */
#define PVR10_TARGET_FAMILY_MASK        0xFF000000

/* MMU descrtiption */
#define PVR11_USE_MMU                   0xC0000000
#define PVR11_MMU_ITLB_SIZE             0x38000000
#define PVR11_MMU_DTLB_SIZE             0x07000000
#define PVR11_MMU_TLB_ACCESS            0x00C00000
#define PVR11_MMU_ZONES                 0x003C0000
/* MSR Reset value PVR mask */
#define PVR11_MSR_RESET_VALUE_MASK      0x000007FF


/* CPU flags.  */

/* Condition codes.  */
#define CC_GE  5
#define CC_GT  4
#define CC_LE  3
#define CC_LT  2
#define CC_NE  1
#define CC_EQ  0

#define NB_MMU_MODES    3
typedef struct CPUMBState {
    uint32_t debug;
    uint32_t btaken;
    uint32_t btarget;
    uint32_t bimm;

    uint32_t imm;
    uint32_t regs[33];
    uint32_t sregs[24];
    float_status fp_status;

    /* Internal flags.  */
#define IMM_FLAG	4
#define MSR_EE_FLAG     (1 << 8)
#define DRTI_FLAG	(1 << 16)
#define DRTE_FLAG	(1 << 17)
#define DRTB_FLAG	(1 << 18)
#define D_FLAG		(1 << 19)  /* Bit in ESR.  */
/* TB dependant CPUState.  */
#define IFLAGS_TB_MASK  (D_FLAG | IMM_FLAG | DRTI_FLAG | DRTE_FLAG | DRTB_FLAG)
    uint32_t iflags;

    struct {
        uint32_t regs[16];
    } pvr;

#if !defined(CONFIG_USER_ONLY)
    /* Unified MMU.  */
    struct microblaze_mmu mmu;
#endif

    CPU_COMMON
} CPUMBState;

CPUState *cpu_mb_init(const char *cpu_model);
int cpu_mb_exec(CPUState *s);
void cpu_mb_close(CPUState *s);
void do_interrupt(CPUState *env);
/* you can call this signal handler from your SIGBUS and SIGSEGV
   signal handlers to inform the virtual CPU of exceptions. non zero
   is returned if the signal was handled by the virtual CPU.  */
int cpu_mb_signal_handler(int host_signum, void *pinfo,
                          void *puc);

enum {
    CC_OP_DYNAMIC, /* Use env->cc_op  */
    CC_OP_FLAGS,
    CC_OP_CMP,
};

/* FIXME: MB uses variable pages down to 1K but linux only uses 4k.  */
#define TARGET_PAGE_BITS 12
#define MMAP_SHIFT TARGET_PAGE_BITS

#define TARGET_PHYS_ADDR_SPACE_BITS 32
#define TARGET_VIRT_ADDR_SPACE_BITS 32

#define cpu_init cpu_mb_init
#define cpu_exec cpu_mb_exec
#define cpu_gen_code cpu_mb_gen_code
#define cpu_signal_handler cpu_mb_signal_handler

#define CPU_SAVE_VERSION 1

/* MMU modes definitions */
#define MMU_MODE0_SUFFIX _nommu
#define MMU_MODE1_SUFFIX _kernel
#define MMU_MODE2_SUFFIX _user
#define MMU_NOMMU_IDX   0
#define MMU_KERNEL_IDX  1
#define MMU_USER_IDX    2
/* See NB_MMU_MODES further up the file.  */

static inline int cpu_mmu_index (CPUState *env)
{
        /* Are we in nommu mode?.  */
        if (!(env->sregs[SR_MSR] & MSR_VM))
            return MMU_NOMMU_IDX;

	if (env->sregs[SR_MSR] & MSR_UM)
            return MMU_USER_IDX;
        return MMU_KERNEL_IDX;
}

int cpu_mb_handle_mmu_fault(CPUState *env, target_ulong address, int rw,
                            int mmu_idx, int is_softmmu);
#define cpu_handle_mmu_fault cpu_mb_handle_mmu_fault

#if defined(CONFIG_USER_ONLY)
static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
{
    if (newsp)
        env->regs[R_SP] = newsp;
    env->regs[3] = 0;
}
#endif

static inline void cpu_set_tls(CPUState *env, target_ulong newtls)
{
}

static inline int cpu_interrupts_enabled(CPUState *env)
{
    return env->sregs[SR_MSR] & MSR_IE;
}

#include "cpu-all.h"

static inline target_ulong cpu_get_pc(CPUState *env)
{
    return env->sregs[SR_PC];
}

static inline void cpu_get_tb_cpu_state(CPUState *env, target_ulong *pc,
                                        target_ulong *cs_base, int *flags)
{
    *pc = env->sregs[SR_PC];
    *cs_base = 0;
    *flags = (env->iflags & IFLAGS_TB_MASK) |
                 (env->sregs[SR_MSR] & (MSR_UM | MSR_VM | MSR_EE));
}

#if !defined(CONFIG_USER_ONLY)
void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
                          int is_asi, int size);
#endif
#endif
Commit	Line	Data
4acb54ba EI	1	/*
	2	* MicroBlaze virtual CPU header
	3	*
	4	* Copyright (c) 2009 Edgar E. Iglesias
	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 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	* General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Lesser General Public
8167ee88	17	* License along with this library; if not, see <http://www.gnu.org/licenses/>.
4acb54ba EI	18	*/
	19	#ifndef CPU_MICROBLAZE_H
	20	#define CPU_MICROBLAZE_H
	21
	22	#define TARGET_LONG_BITS 32
	23
	24	#define CPUState struct CPUMBState
	25
	26	#include "cpu-defs.h"
97694c57	27	#include "softfloat.h"
4acb54ba EI	28	struct CPUMBState;
	29	#if !defined(CONFIG_USER_ONLY)
	30	#include "mmu.h"
	31	#endif
	32
	33	#define TARGET_HAS_ICE 1
	34
0d5d4699	35	#define ELF_MACHINE EM_MICROBLAZE
4acb54ba EI	36
	37	#define EXCP_NMI 1
	38	#define EXCP_MMU 2
	39	#define EXCP_IRQ 3
	40	#define EXCP_BREAK 4
	41	#define EXCP_HW_BREAK 5
cedb936b	42	#define EXCP_HW_EXCP 6
4acb54ba EI	43
	44	/* Register aliases. R0 - R15 */
	45	#define R_SP 1
	46	#define SR_PC 0
	47	#define SR_MSR 1
	48	#define SR_EAR 3
	49	#define SR_ESR 5
	50	#define SR_FSR 7
	51	#define SR_BTR 0xb
	52	#define SR_EDR 0xd
	53
	54	/* MSR flags. */
	55	#define MSR_BE (1<<0) /* 0x001 */
	56	#define MSR_IE (1<<1) /* 0x002 */
	57	#define MSR_C (1<<2) /* 0x004 */
	58	#define MSR_BIP (1<<3) /* 0x008 */
	59	#define MSR_FSL (1<<4) /* 0x010 */
	60	#define MSR_ICE (1<<5) /* 0x020 */
	61	#define MSR_DZ (1<<6) /* 0x040 */
	62	#define MSR_DCE (1<<7) /* 0x080 */
	63	#define MSR_EE (1<<8) /* 0x100 */
	64	#define MSR_EIP (1<<9) /* 0x200 */
	65	#define MSR_CC (1<<31)
	66
	67	/* Machine State Register (MSR) Fields */
	68	#define MSR_UM (1<<11) /* User Mode */
	69	#define MSR_UMS (1<<12) /* User Mode Save */
	70	#define MSR_VM (1<<13) /* Virtual Mode */
	71	#define MSR_VMS (1<<14) /* Virtual Mode Save */
	72
	73	#define MSR_KERNEL MSR_EE\|MSR_VM
	74	//#define MSR_USER MSR_KERNEL\|MSR_UM\|MSR_IE
	75	#define MSR_KERNEL_VMS MSR_EE\|MSR_VMS
	76	//#define MSR_USER_VMS MSR_KERNEL_VMS\|MSR_UMS\|MSR_IE
	77
	78	/* Exception State Register (ESR) Fields */
	79	#define ESR_DIZ (1<<11) /* Zone Protection */
	80	#define ESR_S (1<<10) /* Store instruction */
	81
cedb936b EI	82	#define ESR_EC_FSL 0
	83	#define ESR_EC_UNALIGNED_DATA 1
	84	#define ESR_EC_ILLEGAL_OP 2
	85	#define ESR_EC_INSN_BUS 3
	86	#define ESR_EC_DATA_BUS 4
	87	#define ESR_EC_DIVZERO 5
	88	#define ESR_EC_FPU 6
	89	#define ESR_EC_PRIVINSN 7
	90	#define ESR_EC_DATA_STORAGE 8
	91	#define ESR_EC_INSN_STORAGE 9
	92	#define ESR_EC_DATA_TLB 10
	93	#define ESR_EC_INSN_TLB 11
4acb54ba	94
bdc0bf29 EI	95	/* Floating Point Status Register (FSR) Bits */
	96	#define FSR_IO (1<<4) /* Invalid operation */
	97	#define FSR_DZ (1<<3) /* Divide-by-zero */
	98	#define FSR_OF (1<<2) /* Overflow */
	99	#define FSR_UF (1<<1) /* Underflow */
	100	#define FSR_DO (1<<0) /* Denormalized operand error */
	101
4acb54ba EI	102	/* Version reg. */
	103	/* Basic PVR mask */
	104	#define PVR0_PVR_FULL_MASK 0x80000000
	105	#define PVR0_USE_BARREL_MASK 0x40000000
	106	#define PVR0_USE_DIV_MASK 0x20000000
	107	#define PVR0_USE_HW_MUL_MASK 0x10000000
	108	#define PVR0_USE_FPU_MASK 0x08000000
	109	#define PVR0_USE_EXC_MASK 0x04000000
	110	#define PVR0_USE_ICACHE_MASK 0x02000000
	111	#define PVR0_USE_DCACHE_MASK 0x01000000
	112	#define PVR0_USE_MMU 0x00800000 /* new */
c4374bb7 MS	113	#define PVR0_USE_BTC 0x00400000
	114	#define PVR0_ENDI 0x00200000
	115	#define PVR0_FAULT 0x00100000
4acb54ba EI	116	#define PVR0_VERSION_MASK 0x0000FF00
	117	#define PVR0_USER1_MASK 0x000000FF
	118
	119	/* User 2 PVR mask */
	120	#define PVR1_USER2_MASK 0xFFFFFFFF
	121
	122	/* Configuration PVR masks */
	123	#define PVR2_D_OPB_MASK 0x80000000
	124	#define PVR2_D_LMB_MASK 0x40000000
	125	#define PVR2_I_OPB_MASK 0x20000000
	126	#define PVR2_I_LMB_MASK 0x10000000
	127	#define PVR2_INTERRUPT_IS_EDGE_MASK 0x08000000
	128	#define PVR2_EDGE_IS_POSITIVE_MASK 0x04000000
	129	#define PVR2_D_PLB_MASK 0x02000000 /* new */
	130	#define PVR2_I_PLB_MASK 0x01000000 /* new */
	131	#define PVR2_INTERCONNECT 0x00800000 /* new */
	132	#define PVR2_USE_EXTEND_FSL 0x00080000 /* new */
	133	#define PVR2_USE_FSL_EXC 0x00040000 /* new */
	134	#define PVR2_USE_MSR_INSTR 0x00020000
	135	#define PVR2_USE_PCMP_INSTR 0x00010000
	136	#define PVR2_AREA_OPTIMISED 0x00008000
	137	#define PVR2_USE_BARREL_MASK 0x00004000
	138	#define PVR2_USE_DIV_MASK 0x00002000
	139	#define PVR2_USE_HW_MUL_MASK 0x00001000
	140	#define PVR2_USE_FPU_MASK 0x00000800
	141	#define PVR2_USE_MUL64_MASK 0x00000400
	142	#define PVR2_USE_FPU2_MASK 0x00000200 /* new */
	143	#define PVR2_USE_IPLBEXC 0x00000100
	144	#define PVR2_USE_DPLBEXC 0x00000080
	145	#define PVR2_OPCODE_0x0_ILL_MASK 0x00000040
	146	#define PVR2_UNALIGNED_EXC_MASK 0x00000020
	147	#define PVR2_ILL_OPCODE_EXC_MASK 0x00000010
	148	#define PVR2_IOPB_BUS_EXC_MASK 0x00000008
	149	#define PVR2_DOPB_BUS_EXC_MASK 0x00000004
	150	#define PVR2_DIV_ZERO_EXC_MASK 0x00000002
	151	#define PVR2_FPU_EXC_MASK 0x00000001
	152
	153	/* Debug and exception PVR masks */
	154	#define PVR3_DEBUG_ENABLED_MASK 0x80000000
	155	#define PVR3_NUMBER_OF_PC_BRK_MASK 0x1E000000
	156	#define PVR3_NUMBER_OF_RD_ADDR_BRK_MASK 0x00380000
	157	#define PVR3_NUMBER_OF_WR_ADDR_BRK_MASK 0x0000E000
	158	#define PVR3_FSL_LINKS_MASK 0x00000380
	159
	160	/* ICache config PVR masks */
	161	#define PVR4_USE_ICACHE_MASK 0x80000000
	162	#define PVR4_ICACHE_ADDR_TAG_BITS_MASK 0x7C000000
	163	#define PVR4_ICACHE_USE_FSL_MASK 0x02000000
	164	#define PVR4_ICACHE_ALLOW_WR_MASK 0x01000000
	165	#define PVR4_ICACHE_LINE_LEN_MASK 0x00E00000
	166	#define PVR4_ICACHE_BYTE_SIZE_MASK 0x001F0000
	167
	168	/* DCache config PVR masks */
	169	#define PVR5_USE_DCACHE_MASK 0x80000000
	170	#define PVR5_DCACHE_ADDR_TAG_BITS_MASK 0x7C000000
	171	#define PVR5_DCACHE_USE_FSL_MASK 0x02000000
	172	#define PVR5_DCACHE_ALLOW_WR_MASK 0x01000000
	173	#define PVR5_DCACHE_LINE_LEN_MASK 0x00E00000
	174	#define PVR5_DCACHE_BYTE_SIZE_MASK 0x001F0000
c4374bb7	175	#define PVR5_DCACHE_WRITEBACK_MASK 0x00004000
4acb54ba EI	176
	177	/* ICache base address PVR mask */
	178	#define PVR6_ICACHE_BASEADDR_MASK 0xFFFFFFFF
	179
	180	/* ICache high address PVR mask */
	181	#define PVR7_ICACHE_HIGHADDR_MASK 0xFFFFFFFF
	182
	183	/* DCache base address PVR mask */
	184	#define PVR8_DCACHE_BASEADDR_MASK 0xFFFFFFFF
	185
	186	/* DCache high address PVR mask */
	187	#define PVR9_DCACHE_HIGHADDR_MASK 0xFFFFFFFF
	188
	189	/* Target family PVR mask */
	190	#define PVR10_TARGET_FAMILY_MASK 0xFF000000
	191
	192	/* MMU descrtiption */
	193	#define PVR11_USE_MMU 0xC0000000
	194	#define PVR11_MMU_ITLB_SIZE 0x38000000
	195	#define PVR11_MMU_DTLB_SIZE 0x07000000
	196	#define PVR11_MMU_TLB_ACCESS 0x00C00000
	197	#define PVR11_MMU_ZONES 0x003C0000
	198	/* MSR Reset value PVR mask */
	199	#define PVR11_MSR_RESET_VALUE_MASK 0x000007FF
	200
	201
	202
	203	/* CPU flags. */
	204
	205	/* Condition codes. */
	206	#define CC_GE 5
	207	#define CC_GT 4
	208	#define CC_LE 3
	209	#define CC_LT 2
	210	#define CC_NE 1
	211	#define CC_EQ 0
	212
	213	#define NB_MMU_MODES 3
	214	typedef struct CPUMBState {
	215	uint32_t debug;
	216	uint32_t btaken;
	217	uint32_t btarget;
	218	uint32_t bimm;
	219
	220	uint32_t imm;
	221	uint32_t regs[33];
	222	uint32_t sregs[24];
97694c57	223	float_status fp_status;
4acb54ba EI	224
4acb54ba EI	225	/* Internal flags. */
cedb936b EI	226	#define IMM_FLAG 4
cedb936b EI	227	#define MSR_EE_FLAG (1 << 8)
4acb54ba EI	228	#define DRTI_FLAG (1 << 16)
	229	#define DRTE_FLAG (1 << 17)
	230	#define DRTB_FLAG (1 << 18)
	231	#define D_FLAG (1 << 19) /* Bit in ESR. */
	232	/* TB dependant CPUState. */
fd1dc858	233	#define IFLAGS_TB_MASK (D_FLAG \| IMM_FLAG \| DRTI_FLAG \| DRTE_FLAG \| DRTB_FLAG)
4acb54ba EI	234	uint32_t iflags;
	235
	236	struct {
	237	uint32_t regs[16];
	238	} pvr;
	239
	240	#if !defined(CONFIG_USER_ONLY)
	241	/* Unified MMU. */
	242	struct microblaze_mmu mmu;
	243	#endif
	244
	245	CPU_COMMON
	246	} CPUMBState;
	247
	248	CPUState cpu_mb_init(const char cpu_model);
	249	int cpu_mb_exec(CPUState *s);
	250	void cpu_mb_close(CPUState *s);
	251	void do_interrupt(CPUState *env);
	252	/* you can call this signal handler from your SIGBUS and SIGSEGV
	253	signal handlers to inform the virtual CPU of exceptions. non zero
	254	is returned if the signal was handled by the virtual CPU. */
	255	int cpu_mb_signal_handler(int host_signum, void *pinfo,
	256	void *puc);
	257
	258	enum {
	259	CC_OP_DYNAMIC, /* Use env->cc_op */
	260	CC_OP_FLAGS,
	261	CC_OP_CMP,
	262	};
	263
	264	/* FIXME: MB uses variable pages down to 1K but linux only uses 4k. */
	265	#define TARGET_PAGE_BITS 12
	266	#define MMAP_SHIFT TARGET_PAGE_BITS
	267
52705890 RH	268	#define TARGET_PHYS_ADDR_SPACE_BITS 32
	269	#define TARGET_VIRT_ADDR_SPACE_BITS 32
	270
4acb54ba EI	271	#define cpu_init cpu_mb_init
	272	#define cpu_exec cpu_mb_exec
	273	#define cpu_gen_code cpu_mb_gen_code
	274	#define cpu_signal_handler cpu_mb_signal_handler
	275
	276	#define CPU_SAVE_VERSION 1
	277
	278	/* MMU modes definitions */
	279	#define MMU_MODE0_SUFFIX _nommu
	280	#define MMU_MODE1_SUFFIX _kernel
	281	#define MMU_MODE2_SUFFIX _user
	282	#define MMU_NOMMU_IDX 0
	283	#define MMU_KERNEL_IDX 1
	284	#define MMU_USER_IDX 2
	285	/* See NB_MMU_MODES further up the file. */
	286
	287	static inline int cpu_mmu_index (CPUState *env)
	288	{
	289	/* Are we in nommu mode?. */
	290	if (!(env->sregs[SR_MSR] & MSR_VM))
	291	return MMU_NOMMU_IDX;
	292
	293	if (env->sregs[SR_MSR] & MSR_UM)
	294	return MMU_USER_IDX;
	295	return MMU_KERNEL_IDX;
	296	}
	297
	298	int cpu_mb_handle_mmu_fault(CPUState *env, target_ulong address, int rw,
	299	int mmu_idx, int is_softmmu);
0b5c1ce8	300	#define cpu_handle_mmu_fault cpu_mb_handle_mmu_fault
4acb54ba EI	301
	302	#if defined(CONFIG_USER_ONLY)
	303	static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
	304	{
	305	if (newsp)
	306	env->regs[R_SP] = newsp;
	307	env->regs[3] = 0;
	308	}
	309	#endif
	310
	311	static inline void cpu_set_tls(CPUState *env, target_ulong newtls)
	312	{
	313	}
	314
	315	static inline int cpu_interrupts_enabled(CPUState *env)
	316	{
	317	return env->sregs[SR_MSR] & MSR_IE;
	318	}
	319
	320	#include "cpu-all.h"
4acb54ba	321
4acb54ba EI	322	static inline target_ulong cpu_get_pc(CPUState *env)
	323	{
	324	return env->sregs[SR_PC];
	325	}
	326
	327	static inline void cpu_get_tb_cpu_state(CPUState env, target_ulong pc,
	328	target_ulong cs_base, int flags)
	329	{
	330	*pc = env->sregs[SR_PC];
	331	*cs_base = 0;
fd1dc858 EI	332	*flags = (env->iflags & IFLAGS_TB_MASK) \|
fd1dc858 EI	333	(env->sregs[SR_MSR] & (MSR_UM \| MSR_VM \| MSR_EE));
4acb54ba	334	}
faed1c2a	335
3c7b48b7	336	#if !defined(CONFIG_USER_ONLY)
c227f099	337	void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
faed1c2a	338	int is_asi, int size);
4acb54ba	339	#endif
3c7b48b7	340	#endif