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From: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
To: qemu-devel@nongnu.org
Cc: dovgaluk@ispras.ru
Subject: [Qemu-devel] [RFCPATCH11/20] target/arm/arm-powertctl: drop BQL assertions
Date: Tue, 31 Oct 2017 13:48:40 +0300	[thread overview]
Message-ID: <20171031104840.3079.81200.stgit@pasha-VirtualBox> (raw)
In-Reply-To: <20171031104741.3079.26584.stgit@pasha-VirtualBox>

From: Alex Bennée <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>

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
---
 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 25207cb..9661a59 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 */

  parent reply	other threads:[~2017-10-31 10:48 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-31 10:47 [Qemu-devel] [RFCPATCH00/20] replay additions Pavel Dovgalyuk
2017-10-31 10:47 ` [Qemu-devel] [RFCPATCH01/20] block: implement bdrv_snapshot_goto for blkreplay Pavel Dovgalyuk
2017-10-31 10:47 ` [Qemu-devel] [RFCPATCH02/20] blkreplay: create temporary overlay for underlaying devices Pavel Dovgalyuk
2017-10-31 10:47 ` [Qemu-devel] [RFCPATCH03/20] replay: disable default snapshot for record/replay Pavel Dovgalyuk
2017-10-31 10:48 ` [Qemu-devel] [RFCPATCH04/20] replay: fix processing async events Pavel Dovgalyuk
2017-10-31 10:48 ` [Qemu-devel] [RFCPATCH05/20] replay: fixed replay_enable_events Pavel Dovgalyuk
2017-10-31 10:48 ` [Qemu-devel] [RFCPATCH06/20] replay: fix save/load vm for non-empty queue Pavel Dovgalyuk
2017-10-31 11:21   ` no-reply
2017-10-31 12:13   ` no-reply
2017-10-31 13:26   ` no-reply
2017-10-31 16:41   ` no-reply
2017-10-31 10:48 ` [Qemu-devel] [RFCPATCH07/20] replay: added replay log format description Pavel Dovgalyuk
2017-10-31 10:48 ` [Qemu-devel] [RFCPATCH08/20] replay: make safe vmstop at record/replay Pavel Dovgalyuk
2017-10-31 10:48 ` [Qemu-devel] [RFCPATCH09/20] replay: save prior value of the host clock Pavel Dovgalyuk
2017-10-31 10:48 ` [Qemu-devel] [RFCPATCH10/20] icount: fixed saving/restoring of icount warp timers Pavel Dovgalyuk
2017-10-31 12:47   ` no-reply
2017-10-31 10:48 ` Pavel Dovgalyuk [this message]
2017-10-31 10:48 ` [Qemu-devel] [RFCPATCH12/20] cpus: push BQL lock to qemu_*_wait_io_event Pavel Dovgalyuk
2017-10-31 10:48 ` [Qemu-devel] [RFCPATCH13/20] cpus: only take BQL for sleeping threads Pavel Dovgalyuk
2017-10-31 10:48 ` [Qemu-devel] [RFCPATCH14/20] replay/replay.c: bump REPLAY_VERSION again Pavel Dovgalyuk
2017-10-31 10:49 ` [Qemu-devel] [RFCPATCH15/20] replay/replay-internal.c: track holding of replay_lock Pavel Dovgalyuk
2017-10-31 10:49 ` [Qemu-devel] [RFCPATCH16/20] replay: make locking visible outside replay code Pavel Dovgalyuk
2017-10-31 10:49 ` [Qemu-devel] [RFCPATCH17/20] replay: push replay_mutex_lock up the call tree Pavel Dovgalyuk
2017-10-31 10:49 ` [Qemu-devel] [RFCPATCH18/20] cpu-exec: don't overwrite exception_index Pavel Dovgalyuk
2017-10-31 10:49 ` [Qemu-devel] [RFCPATCH19/20] cpu-exec: reset exit flag before calling cpu_exec_nocache Pavel Dovgalyuk
2017-10-31 10:49 ` [Qemu-devel] [RFCPATCH20/20] replay: don't destroy mutex at exit Pavel Dovgalyuk

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