mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-25 12:40:08 +00:00
889c134a82
Any code that depends on a particular CPU type can now go through callbacks on the QOM UniCore32CPUClass. Signed-off-by: Andreas Färber <afaerber@suse.de Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
191 lines
6.1 KiB
C
191 lines
6.1 KiB
C
/*
|
|
* UniCore32 virtual CPU header
|
|
*
|
|
* Copyright (C) 2010-2012 Guan Xuetao
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation, or (at your option) any
|
|
* later version. See the COPYING file in the top-level directory.
|
|
*/
|
|
#ifndef QEMU_UNICORE32_CPU_H
|
|
#define QEMU_UNICORE32_CPU_H
|
|
|
|
#define TARGET_LONG_BITS 32
|
|
#define TARGET_PAGE_BITS 12
|
|
|
|
#define TARGET_PHYS_ADDR_SPACE_BITS 32
|
|
#define TARGET_VIRT_ADDR_SPACE_BITS 32
|
|
|
|
#define ELF_MACHINE EM_UNICORE32
|
|
|
|
#define CPUArchState struct CPUUniCore32State
|
|
|
|
#include "config.h"
|
|
#include "qemu-common.h"
|
|
#include "cpu-defs.h"
|
|
#include "softfloat.h"
|
|
|
|
#define NB_MMU_MODES 2
|
|
|
|
typedef struct CPUUniCore32State {
|
|
/* Regs for current mode. */
|
|
uint32_t regs[32];
|
|
/* Frequently accessed ASR bits are stored separately for efficiently.
|
|
This contains all the other bits. Use asr_{read,write} to access
|
|
the whole ASR. */
|
|
uint32_t uncached_asr;
|
|
uint32_t bsr;
|
|
|
|
/* Banked registers. */
|
|
uint32_t banked_bsr[6];
|
|
uint32_t banked_r29[6];
|
|
uint32_t banked_r30[6];
|
|
|
|
/* asr flag cache for faster execution */
|
|
uint32_t CF; /* 0 or 1 */
|
|
uint32_t VF; /* V is the bit 31. All other bits are undefined */
|
|
uint32_t NF; /* N is bit 31. All other bits are undefined. */
|
|
uint32_t ZF; /* Z set if zero. */
|
|
|
|
/* System control coprocessor (cp0) */
|
|
struct {
|
|
uint32_t c0_cpuid;
|
|
uint32_t c0_cachetype;
|
|
uint32_t c1_sys; /* System control register. */
|
|
uint32_t c2_base; /* MMU translation table base. */
|
|
uint32_t c3_faultstatus; /* Fault status registers. */
|
|
uint32_t c4_faultaddr; /* Fault address registers. */
|
|
uint32_t c5_cacheop; /* Cache operation registers. */
|
|
uint32_t c6_tlbop; /* TLB operation registers. */
|
|
} cp0;
|
|
|
|
/* UniCore-F64 coprocessor state. */
|
|
struct {
|
|
float64 regs[16];
|
|
uint32_t xregs[32];
|
|
float_status fp_status;
|
|
} ucf64;
|
|
|
|
CPU_COMMON
|
|
|
|
/* Internal CPU feature flags. */
|
|
uint32_t features;
|
|
|
|
} CPUUniCore32State;
|
|
|
|
#define ASR_M (0x1f)
|
|
#define ASR_MODE_USER (0x10)
|
|
#define ASR_MODE_INTR (0x12)
|
|
#define ASR_MODE_PRIV (0x13)
|
|
#define ASR_MODE_TRAP (0x17)
|
|
#define ASR_MODE_EXTN (0x1b)
|
|
#define ASR_MODE_SUSR (0x1f)
|
|
#define ASR_I (1 << 7)
|
|
#define ASR_V (1 << 28)
|
|
#define ASR_C (1 << 29)
|
|
#define ASR_Z (1 << 30)
|
|
#define ASR_N (1 << 31)
|
|
#define ASR_NZCV (ASR_N | ASR_Z | ASR_C | ASR_V)
|
|
#define ASR_RESERVED (~(ASR_M | ASR_I | ASR_NZCV))
|
|
|
|
#define UC32_EXCP_PRIV (1)
|
|
#define UC32_EXCP_ITRAP (2)
|
|
#define UC32_EXCP_DTRAP (3)
|
|
#define UC32_EXCP_INTR (4)
|
|
|
|
/* Return the current ASR value. */
|
|
target_ulong cpu_asr_read(CPUUniCore32State *env1);
|
|
/* Set the ASR. Note that some bits of mask must be all-set or all-clear. */
|
|
void cpu_asr_write(CPUUniCore32State *env1, target_ulong val, target_ulong mask);
|
|
|
|
/* UniCore-F64 system registers. */
|
|
#define UC32_UCF64_FPSCR (31)
|
|
#define UCF64_FPSCR_MASK (0x27ffffff)
|
|
#define UCF64_FPSCR_RND_MASK (0x7)
|
|
#define UCF64_FPSCR_RND(r) (((r) >> 0) & UCF64_FPSCR_RND_MASK)
|
|
#define UCF64_FPSCR_TRAPEN_MASK (0x7f)
|
|
#define UCF64_FPSCR_TRAPEN(r) (((r) >> 10) & UCF64_FPSCR_TRAPEN_MASK)
|
|
#define UCF64_FPSCR_FLAG_MASK (0x3ff)
|
|
#define UCF64_FPSCR_FLAG(r) (((r) >> 17) & UCF64_FPSCR_FLAG_MASK)
|
|
#define UCF64_FPSCR_FLAG_ZERO (1 << 17)
|
|
#define UCF64_FPSCR_FLAG_INFINITY (1 << 18)
|
|
#define UCF64_FPSCR_FLAG_INVALID (1 << 19)
|
|
#define UCF64_FPSCR_FLAG_UNDERFLOW (1 << 20)
|
|
#define UCF64_FPSCR_FLAG_OVERFLOW (1 << 21)
|
|
#define UCF64_FPSCR_FLAG_INEXACT (1 << 22)
|
|
#define UCF64_FPSCR_FLAG_HUGEINT (1 << 23)
|
|
#define UCF64_FPSCR_FLAG_DENORMAL (1 << 24)
|
|
#define UCF64_FPSCR_FLAG_UNIMP (1 << 25)
|
|
#define UCF64_FPSCR_FLAG_DIVZERO (1 << 26)
|
|
|
|
#define UC32_HWCAP_CMOV 4 /* 1 << 2 */
|
|
#define UC32_HWCAP_UCF64 8 /* 1 << 3 */
|
|
|
|
#define cpu_init uc32_cpu_init
|
|
#define cpu_exec uc32_cpu_exec
|
|
#define cpu_signal_handler uc32_cpu_signal_handler
|
|
#define cpu_handle_mmu_fault uc32_cpu_handle_mmu_fault
|
|
|
|
CPUUniCore32State *uc32_cpu_init(const char *cpu_model);
|
|
int uc32_cpu_exec(CPUUniCore32State *s);
|
|
int uc32_cpu_signal_handler(int host_signum, void *pinfo, void *puc);
|
|
int uc32_cpu_handle_mmu_fault(CPUUniCore32State *env, target_ulong address, int rw,
|
|
int mmu_idx);
|
|
|
|
#define CPU_SAVE_VERSION 2
|
|
|
|
/* MMU modes definitions */
|
|
#define MMU_MODE0_SUFFIX _kernel
|
|
#define MMU_MODE1_SUFFIX _user
|
|
#define MMU_USER_IDX 1
|
|
static inline int cpu_mmu_index(CPUUniCore32State *env)
|
|
{
|
|
return (env->uncached_asr & ASR_M) == ASR_MODE_USER ? 1 : 0;
|
|
}
|
|
|
|
static inline void cpu_clone_regs(CPUUniCore32State *env, target_ulong newsp)
|
|
{
|
|
if (newsp) {
|
|
env->regs[29] = newsp;
|
|
}
|
|
env->regs[0] = 0;
|
|
}
|
|
|
|
static inline void cpu_set_tls(CPUUniCore32State *env, target_ulong newtls)
|
|
{
|
|
env->regs[16] = newtls;
|
|
}
|
|
|
|
#include "cpu-all.h"
|
|
#include "cpu-qom.h"
|
|
#include "exec-all.h"
|
|
|
|
static inline void cpu_pc_from_tb(CPUUniCore32State *env, TranslationBlock *tb)
|
|
{
|
|
env->regs[31] = tb->pc;
|
|
}
|
|
|
|
static inline void cpu_get_tb_cpu_state(CPUUniCore32State *env, target_ulong *pc,
|
|
target_ulong *cs_base, int *flags)
|
|
{
|
|
*pc = env->regs[31];
|
|
*cs_base = 0;
|
|
*flags = 0;
|
|
if ((env->uncached_asr & ASR_M) != ASR_MODE_USER) {
|
|
*flags |= (1 << 6);
|
|
}
|
|
}
|
|
|
|
void uc32_translate_init(void);
|
|
void do_interrupt(CPUUniCore32State *);
|
|
void switch_mode(CPUUniCore32State *, int);
|
|
|
|
static inline bool cpu_has_work(CPUUniCore32State *env)
|
|
{
|
|
return env->interrupt_request &
|
|
(CPU_INTERRUPT_HARD | CPU_INTERRUPT_EXITTB);
|
|
}
|
|
|
|
#endif /* QEMU_UNICORE32_CPU_H */
|