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authorRichard Henderson <rth@twiddle.net>2014-09-13 09:45:20 -0700
committerPeter Maydell <peter.maydell@linaro.org>2014-09-25 18:54:21 +0100
commitab409bb3fea7e46bbce557ebda14e8eb420f5377 (patch)
tree68a8bf6cbfab41e81d9741afbcb6f4df4a22439c /target-m68k
parent02bb9bbf1d41ef60a61722e2852392a3eca7f80a (diff)
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target-m68k: Use cpu_exec_interrupt qom hook
Since do_interrupt_m68k_hardirq is no longer used outside op_helper.c, make it static. Signed-off-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 1410626734-3804-10-git-send-email-rth@twiddle.net Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-m68k')
-rw-r--r--target-m68k/cpu-qom.h1
-rw-r--r--target-m68k/cpu.c1
-rw-r--r--target-m68k/cpu.h1
-rw-r--r--target-m68k/op_helper.c22
4 files changed, 22 insertions, 3 deletions
diff --git a/target-m68k/cpu-qom.h b/target-m68k/cpu-qom.h
index 41b14ae..c28e55d 100644
--- a/target-m68k/cpu-qom.h
+++ b/target-m68k/cpu-qom.h
@@ -71,6 +71,7 @@ static inline M68kCPU *m68k_env_get_cpu(CPUM68KState *env)
#define ENV_OFFSET offsetof(M68kCPU, env)
void m68k_cpu_do_interrupt(CPUState *cpu);
+bool m68k_cpu_exec_interrupt(CPUState *cpu, int int_req);
void m68k_cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf,
int flags);
hwaddr m68k_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
diff --git a/target-m68k/cpu.c b/target-m68k/cpu.c
index 5a58d51..4cfb725 100644
--- a/target-m68k/cpu.c
+++ b/target-m68k/cpu.c
@@ -196,6 +196,7 @@ static void m68k_cpu_class_init(ObjectClass *c, void *data)
cc->class_by_name = m68k_cpu_class_by_name;
cc->has_work = m68k_cpu_has_work;
cc->do_interrupt = m68k_cpu_do_interrupt;
+ cc->cpu_exec_interrupt = m68k_cpu_exec_interrupt;
cc->dump_state = m68k_cpu_dump_state;
cc->set_pc = m68k_cpu_set_pc;
cc->gdb_read_register = m68k_cpu_gdb_read_register;
diff --git a/target-m68k/cpu.h b/target-m68k/cpu.h
index 6e4001d..f67bbcc 100644
--- a/target-m68k/cpu.h
+++ b/target-m68k/cpu.h
@@ -120,7 +120,6 @@ void m68k_tcg_init(void);
void m68k_cpu_init_gdb(M68kCPU *cpu);
M68kCPU *cpu_m68k_init(const char *cpu_model);
int cpu_m68k_exec(CPUM68KState *s);
-void do_interrupt_m68k_hardirq(CPUM68KState *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. */
diff --git a/target-m68k/op_helper.c b/target-m68k/op_helper.c
index 9dd3e74..06661f5 100644
--- a/target-m68k/op_helper.c
+++ b/target-m68k/op_helper.c
@@ -27,7 +27,7 @@ void m68k_cpu_do_interrupt(CPUState *cs)
cs->exception_index = -1;
}
-void do_interrupt_m68k_hardirq(CPUM68KState *env)
+static inline void do_interrupt_m68k_hardirq(CPUM68KState *env)
{
}
@@ -141,12 +141,30 @@ void m68k_cpu_do_interrupt(CPUState *cs)
do_interrupt_all(env, 0);
}
-void do_interrupt_m68k_hardirq(CPUM68KState *env)
+static inline void do_interrupt_m68k_hardirq(CPUM68KState *env)
{
do_interrupt_all(env, 1);
}
#endif
+bool m68k_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
+{
+ M68kCPU *cpu = M68K_CPU(cs);
+ CPUM68KState *env = &cpu->env;
+
+ if (interrupt_request & CPU_INTERRUPT_HARD
+ && ((env->sr & SR_I) >> SR_I_SHIFT) < env->pending_level) {
+ /* Real hardware gets the interrupt vector via an IACK cycle
+ at this point. Current emulated hardware doesn't rely on
+ this, so we provide/save the vector when the interrupt is
+ first signalled. */
+ cs->exception_index = env->pending_vector;
+ do_interrupt_m68k_hardirq(env);
+ return true;
+ }
+ return false;
+}
+
static void raise_exception(CPUM68KState *env, int tt)
{
CPUState *cs = CPU(m68k_env_get_cpu(env));