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Date: Thu, 9 Apr 2020 12:27:42 +0100
From: Qais Yousef <qais.yousef@....com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: Qais Yousef <qais.yousef@....com>,
"Rafael J. Wysocki" <rjw@...ysocki.net>,
Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
Todd E Brandt <todd.e.brandt@...ux.intel.com>,
linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] cpu/hotplug: Rename enable_nonboot_cpus()
Now that disable_nonboot_cpus was removed in favour of
freeze_secondary_cpus(), rename enable_nonboot_cpus() to
thaw_secondary_cpus() to preserve the naming symmetry.
Done automatically via:
git grep -l enable_nonboot_cpus | xargs sed -i 's/enable_nonboot_cpus/thaw_secondary_cpus/g'
Signed-off-by: Qais Yousef <qais.yousef@....com>
CC: "Rafael J. Wysocki" <rjw@...ysocki.net>
CC: Len Brown <len.brown@...el.com>
CC: Pavel Machek <pavel@....cz>
CC: Ingo Molnar <mingo@...hat.com>
CC: Borislav Petkov <bp@...en8.de>
CC: "H. Peter Anvin" <hpa@...or.com>
CC: x86@...nel.org
CC: Todd E Brandt <todd.e.brandt@...ux.intel.com>
CC: linux-pm@...r.kernel.org
CC: linux-kernel@...r.kernel.org
---
Documentation/power/suspend-and-cpuhotplug.rst | 2 +-
arch/x86/kernel/smpboot.c | 4 ++--
include/linux/cpu.h | 6 +++---
include/linux/smp.h | 4 ++--
kernel/cpu.c | 12 ++++++------
.../pm-graph/config/custom-timeline-functions.cfg | 2 +-
tools/power/pm-graph/sleepgraph.py | 2 +-
7 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/Documentation/power/suspend-and-cpuhotplug.rst b/Documentation/power/suspend-and-cpuhotplug.rst
index 79f7610a6f6f..ebedb6c75db9 100644
--- a/Documentation/power/suspend-and-cpuhotplug.rst
+++ b/Documentation/power/suspend-and-cpuhotplug.rst
@@ -93,7 +93,7 @@ More details follow::
Resuming back is likewise, with the counterparts being (in the order of
execution during resume):
-* enable_nonboot_cpus() which involves::
+* thaw_secondary_cpus() which involves::
| Acquire cpu_add_remove_lock
| Decrease cpu_hotplug_disabled, thereby enabling regular cpu hotplug
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 69881b2d446c..9c31685af55a 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1372,12 +1372,12 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
speculative_store_bypass_ht_init();
}
-void arch_enable_nonboot_cpus_begin(void)
+void arch_thaw_secondary_cpus_begin(void)
{
set_mtrr_aps_delayed_init();
}
-void arch_enable_nonboot_cpus_end(void)
+void arch_thaw_secondary_cpus_end(void)
{
mtrr_aps_init();
}
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index a00941c7828b..52692587f7fe 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -145,7 +145,7 @@ static inline void put_online_cpus(void) { cpus_read_unlock(); }
#ifdef CONFIG_PM_SLEEP_SMP
extern int freeze_secondary_cpus(int primary);
-extern void enable_nonboot_cpus(void);
+extern void thaw_secondary_cpus(void);
static inline int suspend_disable_secondary_cpus(void)
{
@@ -158,11 +158,11 @@ static inline int suspend_disable_secondary_cpus(void)
}
static inline void suspend_enable_secondary_cpus(void)
{
- return enable_nonboot_cpus();
+ return thaw_secondary_cpus();
}
#else /* !CONFIG_PM_SLEEP_SMP */
-static inline void enable_nonboot_cpus(void) {}
+static inline void thaw_secondary_cpus(void) {}
static inline int suspend_disable_secondary_cpus(void) { return 0; }
static inline void suspend_enable_secondary_cpus(void) { }
#endif /* !CONFIG_PM_SLEEP_SMP */
diff --git a/include/linux/smp.h b/include/linux/smp.h
index cbc9162689d0..04019872c7bc 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -227,8 +227,8 @@ static inline int get_boot_cpu_id(void)
*/
extern void arch_disable_smp_support(void);
-extern void arch_enable_nonboot_cpus_begin(void);
-extern void arch_enable_nonboot_cpus_end(void);
+extern void arch_thaw_secondary_cpus_begin(void);
+extern void arch_thaw_secondary_cpus_end(void);
void smp_setup_processor_id(void);
diff --git a/kernel/cpu.c b/kernel/cpu.c
index d6d2c829561e..8d57c3cfe862 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -1377,7 +1377,7 @@ int freeze_secondary_cpus(int primary)
/*
* Make sure the CPUs won't be enabled by someone else. We need to do
* this even in case of failure as all freeze_secondary_cpus() users are
- * supposed to do enable_nonboot_cpus() on the failure path.
+ * supposed to do thaw_secondary_cpus() on the failure path.
*/
cpu_hotplug_disabled++;
@@ -1385,15 +1385,15 @@ int freeze_secondary_cpus(int primary)
return error;
}
-void __weak arch_enable_nonboot_cpus_begin(void)
+void __weak arch_thaw_secondary_cpus_begin(void)
{
}
-void __weak arch_enable_nonboot_cpus_end(void)
+void __weak arch_thaw_secondary_cpus_end(void)
{
}
-void enable_nonboot_cpus(void)
+void thaw_secondary_cpus(void)
{
int cpu, error;
@@ -1405,7 +1405,7 @@ void enable_nonboot_cpus(void)
pr_info("Enabling non-boot CPUs ...\n");
- arch_enable_nonboot_cpus_begin();
+ arch_thaw_secondary_cpus_begin();
for_each_cpu(cpu, frozen_cpus) {
trace_suspend_resume(TPS("CPU_ON"), cpu, true);
@@ -1418,7 +1418,7 @@ void enable_nonboot_cpus(void)
pr_warn("Error taking CPU%d up: %d\n", cpu, error);
}
- arch_enable_nonboot_cpus_end();
+ arch_thaw_secondary_cpus_end();
cpumask_clear(frozen_cpus);
out:
diff --git a/tools/power/pm-graph/config/custom-timeline-functions.cfg b/tools/power/pm-graph/config/custom-timeline-functions.cfg
index 4f80ad7d7275..962e5768681c 100644
--- a/tools/power/pm-graph/config/custom-timeline-functions.cfg
+++ b/tools/power/pm-graph/config/custom-timeline-functions.cfg
@@ -125,7 +125,7 @@ acpi_suspend_begin:
suspend_console:
acpi_pm_prepare:
syscore_suspend:
-arch_enable_nonboot_cpus_end:
+arch_thaw_secondary_cpus_end:
syscore_resume:
acpi_pm_finish:
resume_console:
diff --git a/tools/power/pm-graph/sleepgraph.py b/tools/power/pm-graph/sleepgraph.py
index f7d1c1f62f86..530a9f681410 100755
--- a/tools/power/pm-graph/sleepgraph.py
+++ b/tools/power/pm-graph/sleepgraph.py
@@ -192,7 +192,7 @@ class SystemValues:
'suspend_console': {},
'acpi_pm_prepare': {},
'syscore_suspend': {},
- 'arch_enable_nonboot_cpus_end': {},
+ 'arch_thaw_secondary_cpus_end': {},
'syscore_resume': {},
'acpi_pm_finish': {},
'resume_console': {},
--
2.17.1
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