From: "Alex Bennée" <alex.bennee@linaro.org>
To: pbonzini@redhat.com, boost.lists@gmail.com, pavel.dovgaluk@ispras.ru
Cc: cota@braap.org, qemu-devel@nongnu.org,
"Alex Bennée" <alex.bennee@linaro.org>,
"Peter Maydell" <peter.maydell@linaro.org>,
"open list:ARM" <qemu-arm@nongnu.org>
Subject: [Qemu-devel] [RFC PATCH v1 1/9] target/arm/arm-powertctl: drop BQL assertions
Date: Fri, 5 May 2017 11:38:14 +0100 [thread overview]
Message-ID: <20170505103822.20641-2-alex.bennee@linaro.org> (raw)
In-Reply-To: <20170505103822.20641-1-alex.bennee@linaro.org>
The powerctl code is run in the context of the vCPU changing power
state. It does not need the BQL to protect its changes.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
target/arm/arm-powerctl.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/target/arm/arm-powerctl.c b/target/arm/arm-powerctl.c
index 25207cb850..9661a59dad 100644
--- a/target/arm/arm-powerctl.c
+++ b/target/arm/arm-powerctl.c
@@ -124,7 +124,6 @@ static void arm_set_cpu_on_async_work(CPUState *target_cpu_state,
g_free(info);
/* Finally set the power status */
- assert(qemu_mutex_iothread_locked());
target_cpu->power_state = PSCI_ON;
}
@@ -135,8 +134,6 @@ int arm_set_cpu_on(uint64_t cpuid, uint64_t entry, uint64_t context_id,
ARMCPU *target_cpu;
struct CpuOnInfo *info;
- assert(qemu_mutex_iothread_locked());
-
DPRINTF("cpu %" PRId64 " (EL %d, %s) @ 0x%" PRIx64 " with R0 = 0x%" PRIx64
"\n", cpuid, target_el, target_aa64 ? "aarch64" : "aarch32", entry,
context_id);
@@ -227,7 +224,6 @@ static void arm_set_cpu_off_async_work(CPUState *target_cpu_state,
{
ARMCPU *target_cpu = ARM_CPU(target_cpu_state);
- assert(qemu_mutex_iothread_locked());
target_cpu->power_state = PSCI_OFF;
target_cpu_state->halted = 1;
target_cpu_state->exception_index = EXCP_HLT;
@@ -238,8 +234,6 @@ int arm_set_cpu_off(uint64_t cpuid)
CPUState *target_cpu_state;
ARMCPU *target_cpu;
- assert(qemu_mutex_iothread_locked());
-
DPRINTF("cpu %" PRId64 "\n", cpuid);
/* change to the cpu we are powering up */
@@ -274,8 +268,6 @@ int arm_reset_cpu(uint64_t cpuid)
CPUState *target_cpu_state;
ARMCPU *target_cpu;
- assert(qemu_mutex_iothread_locked());
-
DPRINTF("cpu %" PRId64 "\n", cpuid);
/* change to the cpu we are resetting */
--
2.11.0
next prev parent reply other threads:[~2017-05-05 10:37 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-05 10:38 [Qemu-devel] [RFC PATCH v1 0/9] BQL and Replay Lock changes Alex Bennée
2017-05-05 10:38 ` Alex Bennée [this message]
2017-05-05 10:38 ` [Qemu-devel] [RFC PATCH v1 2/9] cpus: push BQL lock to qemu_*_wait_io_event Alex Bennée
2017-05-05 10:38 ` [Qemu-devel] [RFC PATCH v1 3/9] cpus: only take BQL for sleeping threads Alex Bennée
2017-05-05 15:15 ` Paolo Bonzini
2017-05-05 15:28 ` Alex Bennée
2017-05-05 10:38 ` [Qemu-devel] [RFC PATCH v1 4/9] replay/replay-internal.c: track holding of replay_lock Alex Bennée
2017-05-05 10:38 ` [Qemu-devel] [RFC PATCH v1 5/9] replay: make locking visible outside replay code Alex Bennée
2017-05-05 10:38 ` [Qemu-devel] [RFC PATCH v1 6/9] replay: push replay_mutex_lock up the call tree Alex Bennée
2017-05-05 10:38 ` [Qemu-devel] [RFC PATCH v1 7/9] scripts/qemu-gdb: add simple tcg lock status helper Alex Bennée
2017-05-05 10:38 ` [Qemu-devel] [RFC PATCH v1 8/9] util/qemu-thread-*: add qemu_lock, locked and unlock trace events Alex Bennée
2017-05-05 15:17 ` Paolo Bonzini
2017-05-05 15:59 ` Alex Bennée
2017-05-06 8:19 ` Paolo Bonzini
2017-05-08 17:52 ` Stefan Hajnoczi
2017-05-09 13:50 ` Alex Bennée
2017-05-09 13:55 ` Paolo Bonzini
2017-05-05 10:38 ` [Qemu-devel] [RFC PATCH v1 9/9] scripts/analyse-locks-simpletrace.py: script to analyse lock times Alex Bennée
2017-05-05 15:38 ` [Qemu-devel] [RFC PATCH v1 0/9] BQL and Replay Lock changes no-reply
2017-05-10 13:51 ` Pavel Dovgalyuk
2017-05-10 15:24 ` Alex Bennée
2017-05-11 11:23 ` Pavel Dovgalyuk
2017-06-05 10:52 ` Pavel Dovgalyuk
2017-06-06 9:34 ` Alex Bennée
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