src/include/cpu_ppc.h

#ifndef CPU_PPC_H
#define CPU_PPC_H

/*
 *  Copyright (C) 2005  Anders Gavare.  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright  
 *     notice, this list of conditions and the following disclaimer in the 
 *     documentation and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE   
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 *  SUCH DAMAGE.
 *
 *
 *  $Id: cpu_ppc.h,v 1.55 2005/11/24 01:15:07 debug Exp $
 */

#include "misc.h"


struct cpu_family;

#define MODE_PPC                0
#define MODE_POWER              1

/*  PPC CPU types:  */
struct ppc_cpu_type_def { 
        char            *name;
        int             pvr;
        int             bits;
        int             flags;
        int             icache_shift;
        int             ilinesize;
        int             iway;
        int             dcache_shift;
        int             dlinesize;
        int             dway;
        int             l2cache_shift;
        int             l2linesize;
        int             l2way;
        int             altivec;

        /*  TODO: POWER vs PowerPC?  */
};

/*  Flags:  */
#define PPC_NOFP                1
#define PPC_601                 2
#define PPC_603                 4
/*  TODO: Most of these just bogus  */

#define PPC_CPU_TYPE_DEFS       {                                       \
        { "PPC405GP",   0,          32, PPC_NOFP, 15,5,2, 15,5,2, 20,5,1, 0 }, \
        { "PPC601",     0,          32, PPC_601, 14,5,4, 14,5,4, 0,0,0, 0 },    \
        { "PPC603",     0x00030302, 32, PPC_603, 14,5,4, 14,5,4, 0,0,0, 0 },    \
        { "PPC603e",    0x00060104, 32, PPC_603, 14,5,4, 14,5,4, 0,0,0, 0 },    \
        { "PPC604",     0x00040304, 32, 0, 15,5,4, 15,5,4, 0,0,0, 0 },  \
        { "PPC620",     0x00140000, 64, 0, 15,5,4, 15,5,4, 0,0,0, 0 },  \
        { "MPC7400",    0x000c0000, 32, 0, 15,5,2, 15,5,2, 19,5,1, 1 }, \
        { "PPC750",     0x00084202, 32, 0, 15,5,2, 15,5,2, 20,5,1, 0 }, \
        { "G4e",        0,          32, 0, 15,5,8, 15,5,8, 18,5,8, 1 }, \
        { "PPC970",     0x00390000, 64, 0, 16,7,1, 15,7,2, 19,7,1, 1 }, \
        { NULL,         0,          0,0,0,0,0,0,0,0,0,0,0,0 }           \
        }

#define PPC_NGPRS               32
#define PPC_NFPRS               32
#define PPC_N_TGPRS             4

#define PPC_N_IC_ARGS                   3
#define PPC_INSTR_ALIGNMENT_SHIFT       2
#define PPC_IC_ENTRIES_SHIFT            10
#define PPC_IC_ENTRIES_PER_PAGE         (1 << PPC_IC_ENTRIES_SHIFT)
#define PPC_PC_TO_IC_ENTRY(a)           (((a)>>PPC_INSTR_ALIGNMENT_SHIFT) \
                                        & (PPC_IC_ENTRIES_PER_PAGE-1))
#define PPC_ADDR_TO_PAGENR(a)           ((a) >> (PPC_IC_ENTRIES_SHIFT \
                                        + PPC_INSTR_ALIGNMENT_SHIFT))

struct ppc_instr_call {
        void    (*f)(struct cpu *, struct ppc_instr_call *);
        size_t  arg[PPC_N_IC_ARGS];
};

/*  Translation cache struct for each physical page:  */
struct ppc_tc_physpage {
        struct ppc_instr_call ics[PPC_IC_ENTRIES_PER_PAGE + 1];
        uint32_t        next_ofs;       /*  or 0 for end of chain  */
        int             flags;
        uint64_t        physaddr;
};

#define PPC_N_VPH_ENTRIES               1048576

#define PPC_MAX_VPH_TLB_ENTRIES         128
struct ppc_vpg_tlb_entry {
        uint8_t         valid;
        uint8_t         writeflag;
        int64_t         timestamp;
        uint64_t        vaddr_page;
        uint64_t        paddr_page;
        unsigned char   *host_page;
};

struct ppc_cpu {
        struct ppc_cpu_type_def cpu_type;

        uint64_t        of_emul_addr;

        int             mode;           /*  MODE_PPC or MODE_POWER  */
        int             bits;           /*  32 or 64  */

        int             irq_asserted;   /*  External Interrupt flag  */
        int             dec_intr_pending;/* Decrementer interrupt pending  */
        uint64_t        zero;           /*  A zero register  */

        uint32_t        cr;             /*  Condition Register  */
        uint32_t        fpscr;          /*  FP Status and Control Register  */
        uint64_t        gpr[PPC_NGPRS]; /*  General Purpose Registers  */
        uint64_t        fpr[PPC_NFPRS]; /*  Floating-Point Registers  */

        uint64_t        msr;            /*  Machine state register  */
        uint64_t        tgpr[PPC_N_TGPRS];/*Temporary gpr 0..3  */

        uint32_t        sr[16];         /*  Segment registers.  */
        uint64_t        spr[1024];

        uint64_t        ll_addr;        /*  Load-linked / store-conditional  */
        int             ll_bit;


        /*
         *  Instruction translation cache:
         */

        /*  cur_ic_page is a pointer to an array of PPC_IC_ENTRIES_PER_PAGE
            instruction call entries. next_ic points to the next such
            call to be executed.  */
        struct ppc_tc_physpage  *cur_physpage;
        struct ppc_instr_call   *cur_ic_page;
        struct ppc_instr_call   *next_ic;

        void                    (*combination_check)(struct cpu *,
                                    struct ppc_instr_call *, int low_addr);

        /*
         *  Virtual -> physical -> host address translation:
         *
         *  host_load and host_store point to arrays of PPC_N_VPH_ENTRIES
         *  pointers (to host pages); phys_addr points to an array of
         *  PPC_N_VPH_ENTRIES uint32_t.
         */

        struct ppc_vpg_tlb_entry        vph_tlb_entry[PPC_MAX_VPH_TLB_ENTRIES];
        unsigned char                   *host_load[PPC_N_VPH_ENTRIES]; 
        unsigned char                   *host_store[PPC_N_VPH_ENTRIES];
        uint32_t                        phys_addr[PPC_N_VPH_ENTRIES]; 
        struct ppc_tc_physpage          *phys_page[PPC_N_VPH_ENTRIES];

        uint32_t                        phystranslation[PPC_N_VPH_ENTRIES/32];
        uint8_t                         vaddr_to_tlbindex[PPC_N_VPH_ENTRIES];
};


/*  Machine status word bits: (according to Book 3)  */
#define PPC_MSR_SF      (1ULL << 63)    /*  Sixty-Four-Bit Mode  */
/*  bits 62..61 are reserved  */
#define PPC_MSR_HV      (1ULL << 60)    /*  Hypervisor  */
/*  bits 59..17  are reserved  */
#define PPC_MSR_VEC     (1 << 25)       /*  Altivec Enable  */
#define PPC_MSR_TGPR    (1 << 17)       /*  Temporary gpr0..3  */
#define PPC_MSR_ILE     (1 << 16)       /*  Interrupt Little-Endian Mode  */
#define PPC_MSR_EE      (1 << 15)       /*  External Interrupt Enable  */
#define PPC_MSR_PR      (1 << 14)       /*  Problem/Privilege State  */
#define PPC_MSR_FP      (1 << 13)       /*  Floating-Point Available  */
#define PPC_MSR_ME      (1 << 12)       /*  Machine Check Interrupt Enable  */
#define PPC_MSR_FE0     (1 << 11)       /*  Floating-Point Exception Mode 0  */
#define PPC_MSR_SE      (1 << 10)       /*  Single-Step Trace Enable  */
#define PPC_MSR_BE      (1 << 9)        /*  Branch Trace Enable  */
#define PPC_MSR_FE1     (1 << 8)        /*  Floating-Point Exception Mode 1  */
#define PPC_MSR_IP      (1 << 6)        /*  Vector Table at 0xfff00000  */
#define PPC_MSR_IR      (1 << 5)        /*  Instruction Relocate  */
#define PPC_MSR_DR      (1 << 4)        /*  Data Relocate  */
#define PPC_MSR_PMM     (1 << 2)        /*  Performance Monitor Mark  */
#define PPC_MSR_RI      (1 << 1)        /*  Recoverable Interrupt  */
#define PPC_MSR_LE      (1)             /*  Little-Endian Mode  */

/*  Floating-point Status:  */
#define PPC_FPSCR_FX    (1 << 31)       /*  Exception summary  */
#define PPC_FPSCR_FEX   (1 << 30)       /*  Enabled Exception summary  */
#define PPC_FPSCR_VX    (1 << 29)       /*  Invalid Operation summary  */
/*  .. TODO  */
#define PPC_FPSCR_VXNAN (1 << 24)
/*  .. TODO  */
#define PPC_FPSCR_FPCC  0x0000f000
#define PPC_FPSCR_FPCC_SHIFT    12
#define PPC_FPSCR_FL    (1 << 15)       /*  Less than  */
#define PPC_FPSCR_FG    (1 << 14)       /*  Greater than  */
#define PPC_FPSCR_FE    (1 << 13)       /*  Equal or Zero  */
#define PPC_FPSCR_FU    (1 << 12)       /*  Unordered or NaN  */

/*  Exceptions:  */
#define PPC_EXCEPTION_DSI       0x3     /*  Data Storage Interrupt  */
#define PPC_EXCEPTION_ISI       0x4     /*  Instruction Storage Interrupt  */
#define PPC_EXCEPTION_EI        0x5     /*  External interrupt  */
#define PPC_EXCEPTION_FPU       0x8     /*  Floating-Point unavailable  */
#define PPC_EXCEPTION_DEC       0x9     /*  Decrementer  */
#define PPC_EXCEPTION_SC        0xc     /*  Syscall  */

/*  XER bits:  */
#define PPC_XER_SO      (1UL << 31)     /*  Summary Overflow  */
#define PPC_XER_OV      (1 << 30)       /*  Overflow  */
#define PPC_XER_CA      (1 << 29)       /*  Carry  */


/*  cpu_ppc.c:  */
void ppc_exception(struct cpu *cpu, int exception_nr);
void ppc_update_translation_table(struct cpu *cpu, uint64_t vaddr_page,
        unsigned char *host_page, int writeflag, uint64_t paddr_page);
void ppc32_update_translation_table(struct cpu *cpu, uint64_t vaddr_page,
        unsigned char *host_page, int writeflag, uint64_t paddr_page);
void ppc_invalidate_translation_caches(struct cpu *cpu, uint64_t, int);
void ppc32_invalidate_translation_caches(struct cpu *cpu, uint64_t, int);
void ppc_invalidate_code_translation(struct cpu *cpu, uint64_t, int);
void ppc32_invalidate_code_translation(struct cpu *cpu, uint64_t, int);
int ppc_memory_rw(struct cpu *cpu, struct memory *mem, uint64_t vaddr,
        unsigned char *data, size_t len, int writeflag, int cache_flags);
int ppc_cpu_family_init(struct cpu_family *);

/*  memory_ppc.c:  */
int ppc_translate_address(struct cpu *cpu, uint64_t vaddr,
        uint64_t *return_addr, int flags);

#endif  /*  CPU_PPC_H  */
1	dpavlin	4	#ifndef CPU_PPC_H
2			#define CPU_PPC_H
3
4			/*
5			* Copyright (C) 2005 Anders Gavare. All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that the following conditions are met:
9			*
10			* 1. Redistributions of source code must retain the above copyright
11			* notice, this list of conditions and the following disclaimer.
12			* 2. Redistributions in binary form must reproduce the above copyright
13			* notice, this list of conditions and the following disclaimer in the
14			* documentation and/or other materials provided with the distribution.
15			* 3. The name of the author may not be used to endorse or promote products
16			* derived from this software without specific prior written permission.
17			*
18			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28			* SUCH DAMAGE.
29			*
30			*
31	dpavlin	20	* $Id: cpu_ppc.h,v 1.55 2005/11/24 01:15:07 debug Exp $
32	dpavlin	4	*/
33
34			#include "misc.h"
35
36
37			struct cpu_family;
38
39			#define MODE_PPC 0
40			#define MODE_POWER 1
41
42			/* PPC CPU types: */
43			struct ppc_cpu_type_def {
44			char *name;
45	dpavlin	14	int pvr;
46	dpavlin	4	int bits;
47			int flags;
48			int icache_shift;
49	dpavlin	14	int ilinesize;
50	dpavlin	4	int iway;
51			int dcache_shift;
52	dpavlin	14	int dlinesize;
53	dpavlin	4	int dway;
54			int l2cache_shift;
55	dpavlin	14	int l2linesize;
56	dpavlin	4	int l2way;
57			int altivec;
58
59			/* TODO: POWER vs PowerPC? */
60			};
61
62			/* Flags: */
63			#define PPC_NOFP 1
64	dpavlin	20	#define PPC_601 2
65			#define PPC_603 4
66	dpavlin	4	/* TODO: Most of these just bogus */
67
68	dpavlin	14	#define PPC_CPU_TYPE_DEFS { \
69			{ "PPC405GP", 0, 32, PPC_NOFP, 15,5,2, 15,5,2, 20,5,1, 0 }, \
70	dpavlin	20	{ "PPC601", 0, 32, PPC_601, 14,5,4, 14,5,4, 0,0,0, 0 }, \
71			{ "PPC603", 0x00030302, 32, PPC_603, 14,5,4, 14,5,4, 0,0,0, 0 }, \
72			{ "PPC603e", 0x00060104, 32, PPC_603, 14,5,4, 14,5,4, 0,0,0, 0 }, \
73			{ "PPC604", 0x00040304, 32, 0, 15,5,4, 15,5,4, 0,0,0, 0 }, \
74			{ "PPC620", 0x00140000, 64, 0, 15,5,4, 15,5,4, 0,0,0, 0 }, \
75	dpavlin	14	{ "MPC7400", 0x000c0000, 32, 0, 15,5,2, 15,5,2, 19,5,1, 1 }, \
76			{ "PPC750", 0x00084202, 32, 0, 15,5,2, 15,5,2, 20,5,1, 0 }, \
77			{ "G4e", 0, 32, 0, 15,5,8, 15,5,8, 18,5,8, 1 }, \
78			{ "PPC970", 0x00390000, 64, 0, 16,7,1, 15,7,2, 19,7,1, 1 }, \
79			{ NULL, 0, 0,0,0,0,0,0,0,0,0,0,0,0 } \
80			}
81	dpavlin	4
82			#define PPC_NGPRS 32
83			#define PPC_NFPRS 32
84	dpavlin	20	#define PPC_N_TGPRS 4
85	dpavlin	4
86	dpavlin	12	#define PPC_N_IC_ARGS 3
87			#define PPC_INSTR_ALIGNMENT_SHIFT 2
88			#define PPC_IC_ENTRIES_SHIFT 10
89			#define PPC_IC_ENTRIES_PER_PAGE (1 << PPC_IC_ENTRIES_SHIFT)
90			#define PPC_PC_TO_IC_ENTRY(a) (((a)>>PPC_INSTR_ALIGNMENT_SHIFT) \
91			& (PPC_IC_ENTRIES_PER_PAGE-1))
92			#define PPC_ADDR_TO_PAGENR(a) ((a) >> (PPC_IC_ENTRIES_SHIFT \
93			+ PPC_INSTR_ALIGNMENT_SHIFT))
94
95			struct ppc_instr_call {
96			void (f)(struct cpu , struct ppc_instr_call *);
97			size_t arg[PPC_N_IC_ARGS];
98			};
99
100			/* Translation cache struct for each physical page: */
101			struct ppc_tc_physpage {
102	dpavlin	18	struct ppc_instr_call ics[PPC_IC_ENTRIES_PER_PAGE + 1];
103	dpavlin	12	uint32_t next_ofs; /* or 0 for end of chain */
104	dpavlin	18	int flags;
105	dpavlin	12	uint64_t physaddr;
106			};
107
108			#define PPC_N_VPH_ENTRIES 1048576
109
110	dpavlin	20	#define PPC_MAX_VPH_TLB_ENTRIES 128
111	dpavlin	12	struct ppc_vpg_tlb_entry {
112	dpavlin	20	uint8_t valid;
113			uint8_t writeflag;
114	dpavlin	12	int64_t timestamp;
115			uint64_t vaddr_page;
116			uint64_t paddr_page;
117	dpavlin	20	unsigned char *host_page;
118	dpavlin	12	};
119
120	dpavlin	4	struct ppc_cpu {
121			struct ppc_cpu_type_def cpu_type;
122
123			uint64_t of_emul_addr;
124
125			int mode; /* MODE_PPC or MODE_POWER */
126			int bits; /* 32 or 64 */
127
128	dpavlin	20	int irq_asserted; /* External Interrupt flag */
129			int dec_intr_pending;/* Decrementer interrupt pending */
130	dpavlin	12	uint64_t zero; /* A zero register */
131
132	dpavlin	4	uint32_t cr; /* Condition Register */
133			uint32_t fpscr; /* FP Status and Control Register */
134			uint64_t gpr[PPC_NGPRS]; /* General Purpose Registers */
135			uint64_t fpr[PPC_NFPRS]; /* Floating-Point Registers */
136
137			uint64_t msr; /* Machine state register */
138	dpavlin	20	uint64_t tgpr[PPC_N_TGPRS];/Temporary gpr 0..3 /
139	dpavlin	12
140	dpavlin	20	uint32_t sr[16]; /* Segment registers. */
141			uint64_t spr[1024];
142	dpavlin	12
143	dpavlin	14	uint64_t ll_addr; /* Load-linked / store-conditional */
144			int ll_bit;
145
146
147	dpavlin	12	/*
148			* Instruction translation cache:
149			*/
150
151			/* cur_ic_page is a pointer to an array of PPC_IC_ENTRIES_PER_PAGE
152			instruction call entries. next_ic points to the next such
153			call to be executed. */
154			struct ppc_tc_physpage *cur_physpage;
155			struct ppc_instr_call *cur_ic_page;
156			struct ppc_instr_call *next_ic;
157
158	dpavlin	20	void (combination_check)(struct cpu ,
159			struct ppc_instr_call *, int low_addr);
160	dpavlin	12
161			/*
162			* Virtual -> physical -> host address translation:
163			*
164			* host_load and host_store point to arrays of PPC_N_VPH_ENTRIES
165			* pointers (to host pages); phys_addr points to an array of
166			* PPC_N_VPH_ENTRIES uint32_t.
167			*/
168
169			struct ppc_vpg_tlb_entry vph_tlb_entry[PPC_MAX_VPH_TLB_ENTRIES];
170			unsigned char *host_load[PPC_N_VPH_ENTRIES];
171			unsigned char *host_store[PPC_N_VPH_ENTRIES];
172			uint32_t phys_addr[PPC_N_VPH_ENTRIES];
173			struct ppc_tc_physpage *phys_page[PPC_N_VPH_ENTRIES];
174	dpavlin	18
175			uint32_t phystranslation[PPC_N_VPH_ENTRIES/32];
176	dpavlin	20	uint8_t vaddr_to_tlbindex[PPC_N_VPH_ENTRIES];
177	dpavlin	4	};
178
179
180			/* Machine status word bits: (according to Book 3) */
181			#define PPC_MSR_SF (1ULL << 63) /* Sixty-Four-Bit Mode */
182			/* bits 62..61 are reserved */
183			#define PPC_MSR_HV (1ULL << 60) /* Hypervisor */
184			/* bits 59..17 are reserved */
185	dpavlin	20	#define PPC_MSR_VEC (1 << 25) /* Altivec Enable */
186			#define PPC_MSR_TGPR (1 << 17) /* Temporary gpr0..3 */
187	dpavlin	4	#define PPC_MSR_ILE (1 << 16) /* Interrupt Little-Endian Mode */
188			#define PPC_MSR_EE (1 << 15) /* External Interrupt Enable */
189	dpavlin	20	#define PPC_MSR_PR (1 << 14) /* Problem/Privilege State */
190	dpavlin	4	#define PPC_MSR_FP (1 << 13) /* Floating-Point Available */
191			#define PPC_MSR_ME (1 << 12) /* Machine Check Interrupt Enable */
192			#define PPC_MSR_FE0 (1 << 11) /* Floating-Point Exception Mode 0 */
193			#define PPC_MSR_SE (1 << 10) /* Single-Step Trace Enable */
194			#define PPC_MSR_BE (1 << 9) /* Branch Trace Enable */
195			#define PPC_MSR_FE1 (1 << 8) /* Floating-Point Exception Mode 1 */
196	dpavlin	20	#define PPC_MSR_IP (1 << 6) /* Vector Table at 0xfff00000 */
197	dpavlin	4	#define PPC_MSR_IR (1 << 5) /* Instruction Relocate */
198			#define PPC_MSR_DR (1 << 4) /* Data Relocate */
199			#define PPC_MSR_PMM (1 << 2) /* Performance Monitor Mark */
200			#define PPC_MSR_RI (1 << 1) /* Recoverable Interrupt */
201			#define PPC_MSR_LE (1) /* Little-Endian Mode */
202
203	dpavlin	20	/* Floating-point Status: */
204			#define PPC_FPSCR_FX (1 << 31) /* Exception summary */
205			#define PPC_FPSCR_FEX (1 << 30) /* Enabled Exception summary */
206			#define PPC_FPSCR_VX (1 << 29) /* Invalid Operation summary */
207			/* .. TODO */
208			#define PPC_FPSCR_VXNAN (1 << 24)
209			/* .. TODO */
210			#define PPC_FPSCR_FPCC 0x0000f000
211			#define PPC_FPSCR_FPCC_SHIFT 12
212			#define PPC_FPSCR_FL (1 << 15) /* Less than */
213			#define PPC_FPSCR_FG (1 << 14) /* Greater than */
214			#define PPC_FPSCR_FE (1 << 13) /* Equal or Zero */
215			#define PPC_FPSCR_FU (1 << 12) /* Unordered or NaN */
216
217			/* Exceptions: */
218			#define PPC_EXCEPTION_DSI 0x3 /* Data Storage Interrupt */
219			#define PPC_EXCEPTION_ISI 0x4 /* Instruction Storage Interrupt */
220			#define PPC_EXCEPTION_EI 0x5 /* External interrupt */
221			#define PPC_EXCEPTION_FPU 0x8 /* Floating-Point unavailable */
222			#define PPC_EXCEPTION_DEC 0x9 /* Decrementer */
223			#define PPC_EXCEPTION_SC 0xc /* Syscall */
224
225	dpavlin	4	/* XER bits: */
226	dpavlin	18	#define PPC_XER_SO (1UL << 31) /* Summary Overflow */
227	dpavlin	4	#define PPC_XER_OV (1 << 30) /* Overflow */
228			#define PPC_XER_CA (1 << 29) /* Carry */
229
230
231			/* cpu_ppc.c: */
232	dpavlin	20	void ppc_exception(struct cpu *cpu, int exception_nr);
233	dpavlin	12	void ppc_update_translation_table(struct cpu *cpu, uint64_t vaddr_page,
234			unsigned char *host_page, int writeflag, uint64_t paddr_page);
235	dpavlin	14	void ppc32_update_translation_table(struct cpu *cpu, uint64_t vaddr_page,
236			unsigned char *host_page, int writeflag, uint64_t paddr_page);
237	dpavlin	18	void ppc_invalidate_translation_caches(struct cpu *cpu, uint64_t, int);
238			void ppc32_invalidate_translation_caches(struct cpu *cpu, uint64_t, int);
239	dpavlin	14	void ppc_invalidate_code_translation(struct cpu *cpu, uint64_t, int);
240			void ppc32_invalidate_code_translation(struct cpu *cpu, uint64_t, int);
241	dpavlin	4	int ppc_memory_rw(struct cpu cpu, struct memory mem, uint64_t vaddr,
242			unsigned char *data, size_t len, int writeflag, int cache_flags);
243			int ppc_cpu_family_init(struct cpu_family *);
244
245	dpavlin	14	/* memory_ppc.c: */
246			int ppc_translate_address(struct cpu *cpu, uint64_t vaddr,
247			uint64_t *return_addr, int flags);
248	dpavlin	4
249			#endif /* CPU_PPC_H */