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[v7,15/40] accel/tcg: Introduce TCGCPUOps::has_work()

Message ID 20210925145118.1361230-16-f4bug@amsat.org
State New
Headers show
Series accel: Move has_work() from CPUClass to AccelOpsClass | expand

Commit Message

Philippe Mathieu-Daudé Sept. 25, 2021, 2:50 p.m. UTC 
Introduce a target-specific has_work() handler for TCG.
Eventually call it from tcg_cpu_has_work(), our
AccelOpsClass::has_work() handler.

Inspired-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 include/hw/core/tcg-cpu-ops.h | 4 ++++
 accel/tcg/tcg-accel-ops.c     | 4 ++++
 2 files changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/include/hw/core/tcg-cpu-ops.h b/include/hw/core/tcg-cpu-ops.h
index 6cbe17f2e6d..c19c507b23c 100644
--- a/include/hw/core/tcg-cpu-ops.h
+++ b/include/hw/core/tcg-cpu-ops.h
@@ -66,6 +66,10 @@  struct TCGCPUOps {
     void (*do_interrupt)(CPUState *cpu);
 #endif /* !CONFIG_USER_ONLY || !TARGET_I386 */
 #ifdef CONFIG_SOFTMMU
+    /**
+     * @has_work: Callback for checking if there is work to do.
+     */
+    bool (*has_work)(CPUState *cpu);
     /** @cpu_exec_interrupt: Callback for processing interrupts in cpu_exec */
     bool (*cpu_exec_interrupt)(CPUState *cpu, int interrupt_request);
     /**
diff --git a/accel/tcg/tcg-accel-ops.c b/accel/tcg/tcg-accel-ops.c
index ebaacff1842..cd44bb6d0d8 100644
--- a/accel/tcg/tcg-accel-ops.c
+++ b/accel/tcg/tcg-accel-ops.c
@@ -32,6 +32,7 @@ 
 #include "qemu/main-loop.h"
 #include "qemu/guest-random.h"
 #include "exec/exec-all.h"
+#include "hw/core/tcg-cpu-ops.h"
 
 #include "tcg-accel-ops.h"
 #include "tcg-accel-ops-mttcg.h"
@@ -80,6 +81,9 @@  static bool tcg_cpu_has_work(CPUState *cpu)
     if (cc->has_work) {
         return cc->has_work(cpu);
     }
+    if (cc->tcg_ops->has_work) {
+        return cc->tcg_ops->has_work(cpu);
+    }
     return false;
 }