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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Richard Henderson" <richard.henderson@linaro.org>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PATCH v2 08/12] accel/tcg: Use cpu_loop_exit_requested() in cpu_loop_exec_tb()
Date: Sun, 28 Apr 2024 23:49:11 +0200	[thread overview]
Message-ID: <20240428214915.10339-9-philmd@linaro.org> (raw)
In-Reply-To: <20240428214915.10339-1-philmd@linaro.org>

Do not open-code cpu_loop_exit_requested().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 accel/tcg/cpu-exec.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index 225e5fbd3e..c18a7e2b85 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -900,8 +900,6 @@ static inline void cpu_loop_exec_tb(CPUState *cpu, TranslationBlock *tb,
                                     vaddr pc, TranslationBlock **last_tb,
                                     int *tb_exit)
 {
-    int32_t insns_left;
-
     trace_exec_tb(tb, pc);
     tb = cpu_tb_exec(cpu, tb, tb_exit);
     if (*tb_exit != TB_EXIT_REQUESTED) {
@@ -910,8 +908,7 @@ static inline void cpu_loop_exec_tb(CPUState *cpu, TranslationBlock *tb,
     }
 
     *last_tb = NULL;
-    insns_left = qatomic_read(&cpu->neg.icount_decr.u32);
-    if (insns_left < 0) {
+    if (cpu_loop_exit_requested(cpu)) {
         /* Something asked us to stop executing chained TBs; just
          * continue round the main loop. Whatever requested the exit
          * will also have set something else (eg exit_request or
@@ -928,7 +925,7 @@ static inline void cpu_loop_exec_tb(CPUState *cpu, TranslationBlock *tb,
     /* Ensure global icount has gone forward */
     icount_update(cpu);
     /* Refill decrementer and continue execution.  */
-    insns_left = MIN(0xffff, cpu->icount_budget);
+    int32_t insns_left = MIN(0xffff, cpu->icount_budget);
     cpu->neg.icount_decr.u16.low = insns_left;
     cpu->icount_extra = cpu->icount_budget - insns_left;
 
-- 
2.41.0



  parent reply	other threads:[~2024-04-28 21:51 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-28 21:49 [PATCH v2 00/12] exec: Rework around CPUState user fields Philippe Mathieu-Daudé
2024-04-28 21:49 ` [PATCH v2 01/12] plugins: Update stale comment Philippe Mathieu-Daudé
2024-04-28 21:49 ` [PATCH v2 02/12] plugins/api: Only include 'exec/ram_addr.h' with system emulation Philippe Mathieu-Daudé
2024-04-28 21:49 ` [PATCH v2 03/12] exec: Include missing license in 'exec/cpu-common.h' Philippe Mathieu-Daudé
2024-04-28 21:49 ` [PATCH v2 04/12] exec/cpu: Indent TARGET_PAGE_foo definitions Philippe Mathieu-Daudé
2024-04-28 21:49 ` [PATCH v2 05/12] exec/cpu: Remove obsolete PAGE_RESERVED definition Philippe Mathieu-Daudé
2024-04-28 21:49 ` [PATCH v2 06/12] exec/cpu: Remove duplicated PAGE_PASSTHROUGH definition Philippe Mathieu-Daudé
2024-04-28 21:49 ` [PATCH v2 07/12] exec/cpu: Extract page-protection definitions to page-protection.h Philippe Mathieu-Daudé
2024-04-28 21:49 ` Philippe Mathieu-Daudé [this message]
2024-04-28 22:05   ` [PATCH v2 08/12] accel/tcg: Use cpu_loop_exit_requested() in cpu_loop_exec_tb() Richard Henderson
2024-04-28 21:49 ` [PATCH v2 09/12] accel/tcg: Restrict cpu_loop_exit_requested() to TCG Philippe Mathieu-Daudé
2024-04-28 22:08   ` Richard Henderson
2024-04-28 22:17     ` Philippe Mathieu-Daudé
2024-04-29 21:23       ` Philippe Mathieu-Daudé
2024-04-28 21:49 ` [PATCH v2 10/12] accel/tcg: Remove pointless initialization of cflags_next_tb Philippe Mathieu-Daudé
2024-04-28 21:49 ` [PATCH v2 11/12] accel/tcg: Reset TCG specific fields in tcg_cpu_reset_hold() Philippe Mathieu-Daudé
2024-04-28 21:49 ` [PATCH v2 12/12] accel/tcg: Access tcg_cflags with getter / setter Philippe Mathieu-Daudé
2024-04-29 12:02 ` [PATCH v2 00/12] exec: Rework around CPUState user fields Philippe Mathieu-Daudé

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