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Partial support for 34K multithreading, not functional yet.
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3156 c046a42c-6fe2-441c-8c8c-71466251a162
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ths committed Sep 6, 2007
1 parent 606b41e commit ead9360
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Showing 18 changed files with 2,305 additions and 826 deletions.
2 changes: 1 addition & 1 deletion cpu-exec.c
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Original file line number Diff line number Diff line change
Expand Up @@ -194,7 +194,7 @@ static inline TranslationBlock *tb_find_fast(void)
#elif defined(TARGET_MIPS)
flags = env->hflags & (MIPS_HFLAG_TMASK | MIPS_HFLAG_BMASK);
cs_base = 0;
pc = env->PC;
pc = env->PC[env->current_tc];
#elif defined(TARGET_M68K)
flags = (env->fpcr & M68K_FPCR_PREC) /* Bit 6 */
| (env->sr & SR_S) /* Bit 13 */
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34 changes: 17 additions & 17 deletions gdbstub.c
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Original file line number Diff line number Diff line change
Expand Up @@ -559,17 +559,17 @@ static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
ptr = mem_buf;
for (i = 0; i < 32; i++)
{
*(target_ulong *)ptr = tswapl(env->gpr[i]);
*(target_ulong *)ptr = tswapl(env->gpr[i][env->current_tc]);
ptr += sizeof(target_ulong);
}

*(target_ulong *)ptr = tswapl(env->CP0_Status);
ptr += sizeof(target_ulong);

*(target_ulong *)ptr = tswapl(env->LO);
*(target_ulong *)ptr = tswapl(env->LO[0][env->current_tc]);
ptr += sizeof(target_ulong);

*(target_ulong *)ptr = tswapl(env->HI);
*(target_ulong *)ptr = tswapl(env->HI[0][env->current_tc]);
ptr += sizeof(target_ulong);

*(target_ulong *)ptr = tswapl(env->CP0_BadVAddr);
Expand All @@ -578,21 +578,21 @@ static int cpu_gdb_read_registers(CPUState *env, uint8_t *mem_buf)
*(target_ulong *)ptr = tswapl(env->CP0_Cause);
ptr += sizeof(target_ulong);

*(target_ulong *)ptr = tswapl(env->PC);
*(target_ulong *)ptr = tswapl(env->PC[env->current_tc]);
ptr += sizeof(target_ulong);

if (env->CP0_Config1 & (1 << CP0C1_FP))
{
for (i = 0; i < 32; i++)
{
*(target_ulong *)ptr = tswapl(env->fpr[i].fs[FP_ENDIAN_IDX]);
*(target_ulong *)ptr = tswapl(env->fpu->fpr[i].fs[FP_ENDIAN_IDX]);
ptr += sizeof(target_ulong);
}

*(target_ulong *)ptr = tswapl(env->fcr31);
*(target_ulong *)ptr = tswapl(env->fpu->fcr31);
ptr += sizeof(target_ulong);

*(target_ulong *)ptr = tswapl(env->fcr0);
*(target_ulong *)ptr = tswapl(env->fpu->fcr0);
ptr += sizeof(target_ulong);
}

Expand All @@ -611,7 +611,7 @@ static unsigned int ieee_rm[] =
float_round_down
};
#define RESTORE_ROUNDING_MODE \
set_float_rounding_mode(ieee_rm[env->fcr31 & 3], &env->fp_status)
set_float_rounding_mode(ieee_rm[env->fpu->fcr31 & 3], &env->fpu->fp_status)

static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
{
Expand All @@ -621,17 +621,17 @@ static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
ptr = mem_buf;
for (i = 0; i < 32; i++)
{
env->gpr[i] = tswapl(*(target_ulong *)ptr);
env->gpr[i][env->current_tc] = tswapl(*(target_ulong *)ptr);
ptr += sizeof(target_ulong);
}

env->CP0_Status = tswapl(*(target_ulong *)ptr);
ptr += sizeof(target_ulong);

env->LO = tswapl(*(target_ulong *)ptr);
env->LO[0][env->current_tc] = tswapl(*(target_ulong *)ptr);
ptr += sizeof(target_ulong);

env->HI = tswapl(*(target_ulong *)ptr);
env->HI[0][env->current_tc] = tswapl(*(target_ulong *)ptr);
ptr += sizeof(target_ulong);

env->CP0_BadVAddr = tswapl(*(target_ulong *)ptr);
Expand All @@ -640,21 +640,21 @@ static void cpu_gdb_write_registers(CPUState *env, uint8_t *mem_buf, int size)
env->CP0_Cause = tswapl(*(target_ulong *)ptr);
ptr += sizeof(target_ulong);

env->PC = tswapl(*(target_ulong *)ptr);
env->PC[env->current_tc] = tswapl(*(target_ulong *)ptr);
ptr += sizeof(target_ulong);

if (env->CP0_Config1 & (1 << CP0C1_FP))
{
for (i = 0; i < 32; i++)
{
env->fpr[i].fs[FP_ENDIAN_IDX] = tswapl(*(target_ulong *)ptr);
env->fpu->fpr[i].fs[FP_ENDIAN_IDX] = tswapl(*(target_ulong *)ptr);
ptr += sizeof(target_ulong);
}

env->fcr31 = tswapl(*(target_ulong *)ptr) & 0x0183FFFF;
env->fpu->fcr31 = tswapl(*(target_ulong *)ptr) & 0x0183FFFF;
ptr += sizeof(target_ulong);

env->fcr0 = tswapl(*(target_ulong *)ptr);
env->fpu->fcr0 = tswapl(*(target_ulong *)ptr);
ptr += sizeof(target_ulong);

/* set rounding mode */
Expand Down Expand Up @@ -775,7 +775,7 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf)
#elif defined (TARGET_SH4)
env->pc = addr;
#elif defined (TARGET_MIPS)
env->PC = addr;
env->PC[env->current_tc] = addr;
#endif
}
#ifdef CONFIG_USER_ONLY
Expand All @@ -799,7 +799,7 @@ static int gdb_handle_packet(GDBState *s, CPUState *env, const char *line_buf)
#elif defined (TARGET_SH4)
env->pc = addr;
#elif defined (TARGET_MIPS)
env->PC = addr;
env->PC[env->current_tc] = addr;
#endif
}
cpu_single_step(env, 1);
Expand Down
2 changes: 1 addition & 1 deletion hw/mips_r4k.c
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Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,7 @@ void load_kernel (CPUState *env, int ram_size, const char *kernel_filename,
if (kernel_size >= 0) {
if ((entry & ~0x7fffffffULL) == 0x80000000)
entry = (int32_t)entry;
env->PC = entry;
env->PC[env->current_tc] = entry;
} else {
fprintf(stderr, "qemu: could not load kernel '%s'\n",
kernel_filename);
Expand Down
2 changes: 1 addition & 1 deletion hw/mips_timer.c
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ uint32_t cpu_mips_get_random (CPUState *env)
static uint32_t seed = 0;
uint32_t idx;
seed = seed * 314159 + 1;
idx = (seed >> 16) % (env->nb_tlb - env->CP0_Wired) + env->CP0_Wired;
idx = (seed >> 16) % (env->tlb->nb_tlb - env->CP0_Wired) + env->CP0_Wired;
return idx;
}

Expand Down
24 changes: 13 additions & 11 deletions linux-user/main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1374,8 +1374,8 @@ void cpu_loop(CPUMIPSState *env)
trapnr = cpu_mips_exec(env);
switch(trapnr) {
case EXCP_SYSCALL:
syscall_num = env->gpr[2] - 4000;
env->PC += 4;
syscall_num = env->gpr[2][env->current_tc] - 4000;
env->PC[env->current_tc] += 4;
if (syscall_num >= sizeof(mips_syscall_args)) {
ret = -ENOSYS;
} else {
Expand All @@ -1384,7 +1384,7 @@ void cpu_loop(CPUMIPSState *env)
target_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;

nb_args = mips_syscall_args[syscall_num];
sp_reg = env->gpr[29];
sp_reg = env->gpr[29][env->current_tc];
switch (nb_args) {
/* these arguments are taken from the stack */
case 8: arg8 = tgetl(sp_reg + 28);
Expand All @@ -1394,18 +1394,20 @@ void cpu_loop(CPUMIPSState *env)
default:
break;
}
ret = do_syscall(env, env->gpr[2],
env->gpr[4], env->gpr[5],
env->gpr[6], env->gpr[7],
ret = do_syscall(env, env->gpr[2][env->current_tc],
env->gpr[4][env->current_tc],
env->gpr[5][env->current_tc],
env->gpr[6][env->current_tc],
env->gpr[7][env->current_tc],
arg5, arg6/*, arg7, arg8*/);
}
if ((unsigned int)ret >= (unsigned int)(-1133)) {
env->gpr[7] = 1; /* error flag */
env->gpr[7][env->current_tc] = 1; /* error flag */
ret = -ret;
} else {
env->gpr[7] = 0; /* error flag */
env->gpr[7][env->current_tc] = 0; /* error flag */
}
env->gpr[2] = ret;
env->gpr[2][env->current_tc] = ret;
break;
case EXCP_TLBL:
case EXCP_TLBS:
Expand Down Expand Up @@ -2053,9 +2055,9 @@ int main(int argc, char **argv)
cpu_mips_register(env, def);

for(i = 0; i < 32; i++) {
env->gpr[i] = regs->regs[i];
env->gpr[i][env->current_tc] = regs->regs[i];
}
env->PC = regs->cp0_epc;
env->PC[env->current_tc] = regs->cp0_epc;
}
#elif defined(TARGET_SH4)
{
Expand Down
36 changes: 18 additions & 18 deletions linux-user/signal.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1686,10 +1686,10 @@ setup_sigcontext(CPUState *regs, struct target_sigcontext *sc)
{
int err = 0;

err |= __put_user(regs->PC, &sc->sc_pc);
err |= __put_user(regs->PC[regs->current_tc], &sc->sc_pc);

#define save_gp_reg(i) do { \
err |= __put_user(regs->gpr[i], &sc->sc_regs[i]); \
#define save_gp_reg(i) do { \
err |= __put_user(regs->gpr[i][regs->current_tc], &sc->sc_regs[i]); \
} while(0)
__put_user(0, &sc->sc_regs[0]); save_gp_reg(1); save_gp_reg(2);
save_gp_reg(3); save_gp_reg(4); save_gp_reg(5); save_gp_reg(6);
Expand All @@ -1702,8 +1702,8 @@ setup_sigcontext(CPUState *regs, struct target_sigcontext *sc)
save_gp_reg(31);
#undef save_gp_reg

err |= __put_user(regs->HI, &sc->sc_mdhi);
err |= __put_user(regs->LO, &sc->sc_mdlo);
err |= __put_user(regs->HI[0][regs->current_tc], &sc->sc_mdhi);
err |= __put_user(regs->LO[0][regs->current_tc], &sc->sc_mdlo);

/* Not used yet, but might be useful if we ever have DSP suppport */
#if 0
Expand Down Expand Up @@ -1763,11 +1763,11 @@ restore_sigcontext(CPUState *regs, struct target_sigcontext *sc)

err |= __get_user(regs->CP0_EPC, &sc->sc_pc);

err |= __get_user(regs->HI, &sc->sc_mdhi);
err |= __get_user(regs->LO, &sc->sc_mdlo);
err |= __get_user(regs->HI[0][regs->current_tc], &sc->sc_mdhi);
err |= __get_user(regs->LO[0][regs->current_tc], &sc->sc_mdlo);

#define restore_gp_reg(i) do { \
err |= __get_user(regs->gpr[i], &sc->sc_regs[i]); \
#define restore_gp_reg(i) do { \
err |= __get_user(regs->gpr[i][regs->current_tc], &sc->sc_regs[i]); \
} while(0)
restore_gp_reg( 1); restore_gp_reg( 2); restore_gp_reg( 3);
restore_gp_reg( 4); restore_gp_reg( 5); restore_gp_reg( 6);
Expand Down Expand Up @@ -1833,7 +1833,7 @@ get_sigframe(struct emulated_sigaction *ka, CPUState *regs, size_t frame_size)
unsigned long sp;

/* Default to using normal stack */
sp = regs->gpr[29];
sp = regs->gpr[29][regs->current_tc];

/*
* FPU emulator may have it's own trampoline active just
Expand Down Expand Up @@ -1881,15 +1881,15 @@ static void setup_frame(int sig, struct emulated_sigaction * ka,
* $25 and PC point to the signal handler, $29 points to the
* struct sigframe.
*/
regs->gpr[ 4] = sig;
regs->gpr[ 5] = 0;
regs->gpr[ 6] = h2g(&frame->sf_sc);
regs->gpr[29] = h2g(frame);
regs->gpr[31] = h2g(frame->sf_code);
regs->gpr[ 4][regs->current_tc] = sig;
regs->gpr[ 5][regs->current_tc] = 0;
regs->gpr[ 6][regs->current_tc] = h2g(&frame->sf_sc);
regs->gpr[29][regs->current_tc] = h2g(frame);
regs->gpr[31][regs->current_tc] = h2g(frame->sf_code);
/* The original kernel code sets CP0_EPC to the handler
* since it returns to userland using eret
* we cannot do this here, and we must set PC directly */
regs->PC = regs->gpr[25] = ka->sa._sa_handler;
regs->PC[regs->current_tc] = regs->gpr[25][regs->current_tc] = ka->sa._sa_handler;
return;

give_sigsegv:
Expand All @@ -1907,7 +1907,7 @@ long do_sigreturn(CPUState *regs)
#if defined(DEBUG_SIGNAL)
fprintf(stderr, "do_sigreturn\n");
#endif
frame = (struct sigframe *) regs->gpr[29];
frame = (struct sigframe *) regs->gpr[29][regs->current_tc];
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;

Expand All @@ -1934,7 +1934,7 @@ long do_sigreturn(CPUState *regs)
/* Unreached */
#endif

regs->PC = regs->CP0_EPC;
regs->PC[regs->current_tc] = regs->CP0_EPC;
/* I am not sure this is right, but it seems to work
* maybe a problem with nested signals ? */
regs->CP0_EPC = 0;
Expand Down
7 changes: 4 additions & 3 deletions linux-user/syscall.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2189,8 +2189,8 @@ int do_fork(CPUState *env, unsigned int flags, unsigned long newsp)
/* ??? is this sufficient? */
#elif defined(TARGET_MIPS)
if (!newsp)
newsp = env->gpr[29];
new_env->gpr[29] = newsp;
newsp = env->gpr[29][env->current_tc];
new_env->gpr[29][env->current_tc] = newsp;
#elif defined(TARGET_PPC)
if (!newsp)
newsp = env->gpr[1];
Expand Down Expand Up @@ -2777,7 +2777,8 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
ret = get_errno(pipe(host_pipe));
if (!is_error(ret)) {
#if defined(TARGET_MIPS)
((CPUMIPSState*)cpu_env)->gpr[3] = host_pipe[1];
CPUMIPSState *env = (CPUMIPSState*)cpu_env;
env->gpr[3][env->current_tc] = host_pipe[1];
ret = host_pipe[0];
#else
tput32(arg1, host_pipe[0]);
Expand Down
4 changes: 4 additions & 0 deletions monitor.c
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Original file line number Diff line number Diff line change
Expand Up @@ -309,6 +309,10 @@ static void do_info_cpus(void)
term_printf(" pc=0x" TARGET_FMT_lx " npc=0x" TARGET_FMT_lx, env->pc, env->npc);
if (env->halted)
term_printf(" (halted)");
#elif defined(TARGET_MIPS)
term_printf(" PC=0x" TARGET_FMT_lx, env->PC[env->current_tc]);
if (env->halted)
term_printf(" (halted)");
#endif
term_printf("\n");
}
Expand Down
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