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m68k: use caller supplied CPUState for interrupt related stuff 

Pass CPUState to do_interrupt(). This is needed by later patches.

It would be cleaner to move the function to helper.c, but there are
a few dependencies between do_interrupt() and other functions.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2011-05-21 07:55:24 +00:00
parent e694d4e289
commit 3c688828bc
3 changed files with 30 additions and 6 deletions
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4
cpu-exec.c
View File

@ -294,7 +294,7 @@ int cpu_exec(CPUState *env1)
#elif defined(TARGET_CRIS)
do_interrupt(env);
#elif defined(TARGET_M68K)
do_interrupt(0);
do_interrupt(env);
#elif defined(TARGET_S390X)
do_interrupt(env);
#endif
@ -529,7 +529,7 @@ int cpu_exec(CPUState *env1)
provide/save the vector when the interrupt is
first signalled. */
env->exception_index = env->pending_vector;
do_interrupt(1);
do_interrupt_m68k_hardirq(env);
next_tb = 0;
}
#elif defined(TARGET_S390X) && !defined(CONFIG_USER_ONLY)

3
target-m68k/cpu.h
View File

@ -119,7 +119,8 @@ void m68k_tcg_init(void);
CPUM68KState *cpu_m68k_init(const char *cpu_model);
int cpu_m68k_exec(CPUM68KState *s);
void cpu_m68k_close(CPUM68KState *s);
void do_interrupt(int is_hw);
void do_interrupt(CPUState *env1);
void do_interrupt_m68k_hardirq(CPUState *env1);
/* 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. */

29
target-m68k/op_helper.c
View File

@ -21,9 +21,13 @@
#if defined(CONFIG_USER_ONLY)
void do_interrupt(int is_hw)
void do_interrupt(CPUState *env1)
{
env1->exception_index = -1;
}
void do_interrupt_m68k_hardirq(CPUState *env1)
{
env->exception_index = -1;
}
#else
@ -90,7 +94,7 @@ static void do_rte(void)
env->aregs[7] = sp + 8;
}
void do_interrupt(int is_hw)
static void do_interrupt_all(int is_hw)
{
uint32_t sp;
uint32_t fmt;
@ -155,6 +159,25 @@ void do_interrupt(int is_hw)
env->pc = ldl_kernel(env->vbr + vector);
}
void do_interrupt(CPUState *env1)
{
CPUState *saved_env;
saved_env = env;
env = env1;
do_interrupt_all(0);
env = saved_env;
}
void do_interrupt_m68k_hardirq(CPUState *env1)
{
CPUState *saved_env;
saved_env = env;
env = env1;
do_interrupt_all(1);
env = saved_env;
}
#endif
static void raise_exception(int tt)