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[PATCH v2 2/7] hw/mips: Use WITH_QEMU_IOTHREAD_LOCK in cpu_mips_irq_requ
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From: |
Richard Henderson |
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Subject: |
[PATCH v2 2/7] hw/mips: Use WITH_QEMU_IOTHREAD_LOCK in cpu_mips_irq_request |
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Date: |
Tue, 22 Nov 2022 12:57:34 -0800 |
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
hw/mips/mips_int.c | 37 ++++++++++++++-----------------------
1 file changed, 14 insertions(+), 23 deletions(-)
diff --git a/hw/mips/mips_int.c b/hw/mips/mips_int.c
index 2db5e10fe0..c22598d353 100644
--- a/hw/mips/mips_int.c
+++ b/hw/mips/mips_int.c
@@ -32,36 +32,27 @@ static void cpu_mips_irq_request(void *opaque, int irq, int
level)
MIPSCPU *cpu = opaque;
CPUMIPSState *env = &cpu->env;
CPUState *cs = CPU(cpu);
- bool locked = false;
if (irq < 0 || irq > 7) {
return;
}
- /* Make sure locking works even if BQL is already held by the caller */
- if (!qemu_mutex_iothread_locked()) {
- locked = true;
- qemu_mutex_lock_iothread();
- }
+ WITH_QEMU_IOTHREAD_LOCK() {
+ if (level) {
+ env->CP0_Cause |= 1 << (irq + CP0Ca_IP);
+ } else {
+ env->CP0_Cause &= ~(1 << (irq + CP0Ca_IP));
+ }
- if (level) {
- env->CP0_Cause |= 1 << (irq + CP0Ca_IP);
- } else {
- env->CP0_Cause &= ~(1 << (irq + CP0Ca_IP));
- }
+ if (kvm_enabled() && (irq == 2 || irq == 3)) {
+ kvm_mips_set_interrupt(cpu, irq, level);
+ }
- if (kvm_enabled() && (irq == 2 || irq == 3)) {
- kvm_mips_set_interrupt(cpu, irq, level);
- }
-
- if (env->CP0_Cause & CP0Ca_IP_mask) {
- cpu_interrupt(cs, CPU_INTERRUPT_HARD);
- } else {
- cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
- }
-
- if (locked) {
- qemu_mutex_unlock_iothread();
+ if (env->CP0_Cause & CP0Ca_IP_mask) {
+ cpu_interrupt(cs, CPU_INTERRUPT_HARD);
+ } else {
+ cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
+ }
}
}
--
2.34.1
- [PATCH v2 0/7] main-loop: Introduce QEMU_IOTHREAD_LOCK_GUARD, Richard Henderson, 2022/11/22
- [PATCH v2 1/7] qemu/main-loop: Introduce QEMU_IOTHREAD_LOCK_GUARD, WITH_QEMU_IOTHREAD_LOCK, Richard Henderson, 2022/11/22
- [PATCH v2 2/7] hw/mips: Use WITH_QEMU_IOTHREAD_LOCK in cpu_mips_irq_request,
Richard Henderson <=
- [PATCH v2 3/7] target/ppc: Use QEMU_IOTHREAD_LOCK_GUARD in ppc_maybe_interrupt, Richard Henderson, 2022/11/22
- [PATCH v2 6/7] target/riscv: Use QEMU_IOTHREAD_LOCK_GUARD in riscv_cpu_update_mip, Richard Henderson, 2022/11/22
- [PATCH v2 5/7] hw/ppc: Use QEMU_IOTHREAD_LOCK_GUARD in ppc_set_irq, Richard Henderson, 2022/11/22
- [PATCH v2 7/7] accel/tcg: Use WITH_QEMU_IOTHREAD_LOCK in io_readx/io_writex, Richard Henderson, 2022/11/22
- [PATCH v2 4/7] target/ppc: Use QEMU_IOTHREAD_LOCK_GUARD in cpu_interrupt_exittb, Richard Henderson, 2022/11/22