From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
"Thomas Huth" <thuth@redhat.com>,
qemu-riscv@nongnu.org, "Eduardo Habkost" <ehabkost@redhat.com>,
"David Hildenbrand" <david@redhat.com>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
"Cornelia Huck" <cohuck@redhat.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Laurent Vivier" <laurent@vivier.eu>,
"Greg Kurz" <groug@kaod.org>,
qemu-s390x@nongnu.org, qemu-arm@nongnu.org, qemu-ppc@nongnu.org,
"Claudio Fontana" <cfontana@suse.de>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"David Gibson" <david@gibson.dropbear.id.au>
Subject: [RFC PATCH v2 6/8] cpu: Declare cpu_has_work() in 'sysemu/tcg.h'
Date: Thu, 4 Mar 2021 23:23:21 +0100 [thread overview]
Message-ID: <20210304222323.1954755-7-f4bug@amsat.org> (raw)
In-Reply-To: <20210304222323.1954755-1-f4bug@amsat.org>
We can only check if a vCPU has work with TCG.
Move the cpu_has_work() prototype to "sysemu/tcg.h".
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
RFC: could another accelerator do that?
can we rename this tcg_vcpu_has_work()?
---
include/hw/core/cpu.h | 16 ----------------
include/sysemu/tcg.h | 11 +++++++++++
accel/tcg/cpu-exec.c | 7 +++++++
softmmu/cpus.c | 1 +
4 files changed, 19 insertions(+), 16 deletions(-)
diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 1376e496a3f..66109bcca35 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -670,22 +670,6 @@ CPUState *cpu_create(const char *typename);
*/
const char *parse_cpu_option(const char *cpu_option);
-/**
- * cpu_has_work:
- * @cpu: The vCPU to check.
- *
- * Checks whether the CPU has work to do.
- *
- * Returns: %true if the CPU has work, %false otherwise.
- */
-static inline bool cpu_has_work(CPUState *cpu)
-{
- CPUClass *cc = CPU_GET_CLASS(cpu);
-
- g_assert(cc->has_work);
- return cc->has_work(cpu);
-}
-
/**
* qemu_cpu_is_self:
* @cpu: The vCPU to check against.
diff --git a/include/sysemu/tcg.h b/include/sysemu/tcg.h
index c16c13c3c69..3d46b0a7a93 100644
--- a/include/sysemu/tcg.h
+++ b/include/sysemu/tcg.h
@@ -10,6 +10,7 @@
#ifndef CONFIG_TCG
#define tcg_enabled() 0
+#define cpu_has_work(cpu) false
#else
void tcg_exec_init(unsigned long tb_size, int splitwx);
@@ -26,6 +27,16 @@ extern bool tcg_allowed;
extern bool mttcg_enabled;
#define qemu_tcg_mttcg_enabled() (mttcg_enabled)
+/**
+ * cpu_has_work:
+ * @cpu: The vCPU to check.
+ *
+ * Checks whether the CPU has work to do.
+ *
+ * Returns: %true if the CPU has work, %false otherwise.
+ */
+bool cpu_has_work(CPUState *cpu);
+
#endif /* CONFIG_TCG */
#endif
diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index 7e67ade35b9..b9ce36e59e2 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -447,6 +447,13 @@ static inline TranslationBlock *tb_find(CPUState *cpu,
return tb;
}
+bool cpu_has_work(CPUState *cpu)
+{
+ CPUClass *cc = CPU_GET_CLASS(cpu);
+
+ return cc->has_work(cpu);
+}
+
static inline bool cpu_handle_halt(CPUState *cpu)
{
if (cpu->halted) {
diff --git a/softmmu/cpus.c b/softmmu/cpus.c
index a7ee431187a..548ab9236f1 100644
--- a/softmmu/cpus.c
+++ b/softmmu/cpus.c
@@ -42,6 +42,7 @@
#include "sysemu/runstate.h"
#include "sysemu/cpu-timers.h"
#include "sysemu/whpx.h"
+#include "sysemu/tcg.h"
#include "hw/boards.h"
#include "hw/hw.h"
--
2.26.2
next prev parent reply other threads:[~2021-03-04 22:52 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-04 22:23 [RFC PATCH v2 0/8] cpu: Move CPUClass::has_work() to TCGCPUOps Philippe Mathieu-Daudé
2021-03-04 22:23 ` [RFC PATCH v2 1/8] sysemu/tcg: Restrict tcg_exec_init() to CONFIG_TCG Philippe Mathieu-Daudé
2021-03-08 13:40 ` David Hildenbrand
2021-03-08 14:50 ` Claudio Fontana
2021-03-04 22:23 ` [RFC PATCH v2 2/8] sysemu/tcg: Restrict qemu_tcg_mttcg_enabled() to TCG Philippe Mathieu-Daudé
2021-03-08 14:52 ` Claudio Fontana
2021-03-04 22:23 ` [RFC PATCH v2 3/8] target/arm: Directly use arm_cpu_has_work instead of CPUClass::has_work Philippe Mathieu-Daudé
2021-03-08 14:53 ` Claudio Fontana
2021-03-04 22:23 ` [RFC PATCH v2 4/8] target/s390x: Move s390_cpu_has_work to excp_helper.c Philippe Mathieu-Daudé
2021-03-04 22:23 ` [RFC PATCH v2 5/8] target/ppc: Duplicate the TCGCPUOps structure for POWER CPUs Philippe Mathieu-Daudé
2021-03-05 1:05 ` David Gibson
2021-03-04 22:23 ` Philippe Mathieu-Daudé [this message]
2021-03-08 12:13 ` [RFC PATCH v2 6/8] cpu: Declare cpu_has_work() in 'sysemu/tcg.h' Claudio Fontana
2021-03-08 12:17 ` Claudio Fontana
2021-03-08 13:37 ` Philippe Mathieu-Daudé
2021-03-04 22:23 ` [RFC PATCH v2 7/8] cpu: Move CPUClass::has_work() to TCGCPUOps Philippe Mathieu-Daudé
2021-03-05 1:05 ` David Gibson
2021-03-04 22:23 ` [RFC PATCH v2 8/8] target/arm: Restrict arm_cpu_has_work() to TCG Philippe Mathieu-Daudé
2021-03-13 23:55 ` [RFC PATCH v2 0/8] cpu: Move CPUClass::has_work() to TCGCPUOps Philippe Mathieu-Daudé
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