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PowerPC merge: real time TB and decrementer - faster and simpler exception handling (Jocelyn Mayer)

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@841 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-05-21 12:59:32 +00:00
parent 4a0fb71e67
commit 9fddaa0c0c
14 changed files with 475 additions and 309 deletions
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35
target-ppc/cpu.h
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@ -78,6 +78,8 @@ enum {
#define PPC_750 (PPC_INTEGER | PPC_FLOAT | PPC_FLOW | PPC_MEM | \
PPC_RES | PPC_CACHE | PPC_MISC | PPC_EXTERN | PPC_SEGMENT)
typedef struct ppc_tb_t ppc_tb_t;
/* Supervisor mode registers */
/* Machine state register */
#define MSR_POW 18
@ -134,10 +136,6 @@ typedef struct CPUPPCState {
/* special purpose registers */
uint32_t lr;
uint32_t ctr;
/* Time base */
uint32_t tb[2];
/* decrementer */
uint32_t decr;
/* BATs */
uint32_t DBAT[2][8];
uint32_t IBAT[2][8];
@ -154,13 +152,6 @@ typedef struct CPUPPCState {
int error_code;
int access_type; /* when a memory exception occurs, the access
type is stored here */
#if 0 /* TODO */
uint32_t pending_exceptions; /* For external & decr exception,
* that can be delayed */
#else
uint32_t exceptions; /* exception queue */
uint32_t errors[32];
#endif
int user_mode_only; /* user mode only simulation */
struct TranslationBlock *current_tb; /* currently executing TB */
/* soft mmu support */
@ -178,8 +169,13 @@ typedef struct CPUPPCState {
/* ice debug support */
uint32_t breakpoints[MAX_BREAKPOINTS];
int nb_breakpoints;
int brkstate;
int singlestep_enabled;
int singlestep_enabled; /* XXX: should use CPU single step mode instead */
/* Time base and decrementer */
ppc_tb_t *tb_env;
/* Power management */
int power_mode;
/* user data */
void *opaque;
@ -206,10 +202,15 @@ void _store_xer (CPUPPCState *env, uint32_t value);
uint32_t _load_msr (CPUPPCState *env);
void _store_msr (CPUPPCState *env, uint32_t value);
void PPC_init_hw (uint32_t mem_size,
uint32_t kernel_addr, uint32_t kernel_size,
uint32_t stack_addr, int boot_device,
const unsigned char *initrd_file);
/* Time-base and decrementer management */
#ifndef NO_CPU_IO_DEFS
uint32_t cpu_ppc_load_tbl (CPUPPCState *env);
uint32_t cpu_ppc_load_tbu (CPUPPCState *env);
void cpu_ppc_store_tbu (CPUPPCState *env, uint32_t value);
void cpu_ppc_store_tbl (CPUPPCState *env, uint32_t value);
uint32_t cpu_ppc_load_decr (CPUPPCState *env);
void cpu_ppc_store_decr (CPUPPCState *env, uint32_t value);
#endif
#define TARGET_PAGE_BITS 12
#include "cpu-all.h"