1. Patchew
  2. QEMU
  3. [PATCH for-8.0 0/7] main-loop: Introduce QEMU_IOTHREAD_LOCK_GUARD
  4. View patch

[PATCH for-8.0 3/7] target/ppc: Use QEMU_IOTHREAD_LOCK_GUARD in ppc_maybe_interrupt

Richard Henderson posted 7 patches 3 years, 2 months ago
Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Daniel Henrique Barboza <danielhb413@gmail.com>, "Cédric Le Goater" <clg@kaod.org>, David Gibson <david@gibson.dropbear.id.au>, Greg Kurz <groug@kaod.org>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>
There is a newer version of this series
[PATCH for-8.0 3/7] target/ppc: Use QEMU_IOTHREAD_LOCK_GUARD in ppc_maybe_interrupt
Posted by Richard Henderson 3 years, 2 months ago 
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
Cc: qemu-ppc@nongnu.org
---
 target/ppc/excp_helper.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
index 94adcb766b..8591bb3f73 100644
--- a/target/ppc/excp_helper.c
+++ b/target/ppc/excp_helper.c
@@ -2163,22 +2163,13 @@ static int ppc_next_unmasked_interrupt(CPUPPCState *env)
 void ppc_maybe_interrupt(CPUPPCState *env)
 {
     CPUState *cs = env_cpu(env);
-    bool locked = false;
-
-    if (!qemu_mutex_iothread_locked()) {
-        locked = true;
-        qemu_mutex_lock_iothread();
-    }
+    QEMU_IOTHREAD_LOCK_GUARD();
 
     if (ppc_next_unmasked_interrupt(env)) {
         cpu_interrupt(cs, CPU_INTERRUPT_HARD);
     } else {
         cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
     }
-
-    if (locked) {
-        qemu_mutex_unlock_iothread();
-    }
 }
 
 #if defined(TARGET_PPC64)
-- 
2.34.1
Re: [PATCH for-8.0 3/7] target/ppc: Use QEMU_IOTHREAD_LOCK_GUARD in ppc_maybe_interrupt
Posted by Philippe Mathieu-Daudé 3 years, 2 months ago 
On 18/11/22 10:18, Richard Henderson wrote:
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
> Cc: qemu-ppc@nongnu.org
> ---
>   target/ppc/excp_helper.c | 11 +----------
>   1 file changed, 1 insertion(+), 10 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Re: [PATCH for-8.0 3/7] target/ppc: Use QEMU_IOTHREAD_LOCK_GUARD in ppc_maybe_interrupt
Posted by Daniel Henrique Barboza 3 years, 2 months ago 

On 11/18/22 06:18, Richard Henderson wrote:
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
> Cc: qemu-ppc@nongnu.org
> ---


Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>

>   target/ppc/excp_helper.c | 11 +----------
>   1 file changed, 1 insertion(+), 10 deletions(-)
> 
> diff --git a/target/ppc/excp_helper.c b/target/ppc/excp_helper.c
> index 94adcb766b..8591bb3f73 100644
> --- a/target/ppc/excp_helper.c
> +++ b/target/ppc/excp_helper.c
> @@ -2163,22 +2163,13 @@ static int ppc_next_unmasked_interrupt(CPUPPCState *env)
>   void ppc_maybe_interrupt(CPUPPCState *env)
>   {
>       CPUState *cs = env_cpu(env);
> -    bool locked = false;
> -
> -    if (!qemu_mutex_iothread_locked()) {
> -        locked = true;
> -        qemu_mutex_lock_iothread();
> -    }
> +    QEMU_IOTHREAD_LOCK_GUARD();
>   
>       if (ppc_next_unmasked_interrupt(env)) {
>           cpu_interrupt(cs, CPU_INTERRUPT_HARD);
>       } else {
>           cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
>       }
> -
> -    if (locked) {
> -        qemu_mutex_unlock_iothread();
> -    }
>   }
>   
>   #if defined(TARGET_PPC64)

Patchew 2.1-devel-b67e4c2

© 2016 - 2026 Red Hat, Inc.