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[Qemu-devel] [PATCH 1/4] target/xtensa: expose core runstall as an IRQ l
From: |
Max Filippov |
Subject: |
[Qemu-devel] [PATCH 1/4] target/xtensa: expose core runstall as an IRQ line |
Date: |
Sun, 27 Jan 2019 18:09:34 -0800 |
Runstall signal looks very much like a level-triggered IRQ line. Provide
xtensa_get_runstall function that returns runstall IRQ.
Signed-off-by: Max Filippov <address@hidden>
---
hw/xtensa/pic_cpu.c | 12 ++++++++++++
target/xtensa/cpu.h | 2 ++
2 files changed, 14 insertions(+)
diff --git a/hw/xtensa/pic_cpu.c b/hw/xtensa/pic_cpu.c
index 077f4ad53d6d..a8939f5e58d0 100644
--- a/hw/xtensa/pic_cpu.c
+++ b/hw/xtensa/pic_cpu.c
@@ -86,6 +86,12 @@ static void xtensa_ccompare_cb(void *opaque)
qemu_set_irq(env->irq_inputs[env->config->timerint[i]], 1);
}
+static void xtensa_set_runstall(void *opaque, int irq, int active)
+{
+ CPUXtensaState *env = opaque;
+ xtensa_runstall(env, active);
+}
+
void xtensa_irq_init(CPUXtensaState *env)
{
unsigned i;
@@ -106,9 +112,15 @@ void xtensa_irq_init(CPUXtensaState *env)
env->ext_irq_inputs[i] = env->irq_inputs[irq];
}
+ env->runstall_irq = qemu_allocate_irq(xtensa_set_runstall, env, 0);
}
qemu_irq *xtensa_get_extints(CPUXtensaState *env)
{
return env->ext_irq_inputs;
}
+
+qemu_irq xtensa_get_runstall(CPUXtensaState *env)
+{
+ return env->runstall_irq;
+}
diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h
index 176af8a53cf0..b665bfc0068a 100644
--- a/target/xtensa/cpu.h
+++ b/target/xtensa/cpu.h
@@ -485,6 +485,7 @@ typedef struct CPUXtensaState {
int pending_irq_level; /* level of last raised IRQ */
qemu_irq *irq_inputs;
qemu_irq ext_irq_inputs[MAX_NINTERRUPT];
+ qemu_irq runstall_irq;
XtensaCcompareTimer ccompare[MAX_NCCOMPARE];
uint64_t time_base;
uint64_t ccount_time;
@@ -571,6 +572,7 @@ void xtensa_sim_open_console(Chardev *chr);
void check_interrupts(CPUXtensaState *s);
void xtensa_irq_init(CPUXtensaState *env);
qemu_irq *xtensa_get_extints(CPUXtensaState *env);
+qemu_irq xtensa_get_runstall(CPUXtensaState *env);
int cpu_xtensa_signal_handler(int host_signum, void *pinfo, void *puc);
void xtensa_cpu_list(FILE *f, fprintf_function cpu_fprintf);
void xtensa_sync_window_from_phys(CPUXtensaState *env);
--
2.11.0