From: sudeep.holla@arm.com (Sudeep Holla)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] arm64: kernel: rename __cpu_suspend to keep it aligned with arm
Date: Tue, 16 Jun 2015 14:50:39 +0100 [thread overview]
Message-ID: <1434462640-19613-2-git-send-email-sudeep.holla@arm.com> (raw)
In-Reply-To: <1434462640-19613-1-git-send-email-sudeep.holla@arm.com>
This patch renames __cpu_suspend to cpu_suspend so that it's aligned
with ARM32. It also removes the redundant wrapper created.
This is preparation to implement generic PSCI system suspend using the
cpu_{suspend,resume} which now has the same interface on both ARM and
ARM64.
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
arch/arm64/include/asm/cpuidle.h | 8 ++------
arch/arm64/include/asm/suspend.h | 2 +-
arch/arm64/kernel/cpuidle.c | 4 ++--
arch/arm64/kernel/psci.c | 2 +-
arch/arm64/kernel/suspend.c | 6 +++---
5 files changed, 9 insertions(+), 13 deletions(-)
diff --git a/arch/arm64/include/asm/cpuidle.h b/arch/arm64/include/asm/cpuidle.h
index 141b2fcabaa6..0f74f05d662a 100644
--- a/arch/arm64/include/asm/cpuidle.h
+++ b/arch/arm64/include/asm/cpuidle.h
@@ -5,20 +5,16 @@
#ifdef CONFIG_CPU_IDLE
extern int arm_cpuidle_init(unsigned int cpu);
-extern int cpu_suspend(unsigned long arg);
+extern int arm_cpuidle_suspend(int index);
#else
static inline int arm_cpuidle_init(unsigned int cpu)
{
return -EOPNOTSUPP;
}
-static inline int cpu_suspend(unsigned long arg)
+static inline int arm_cpuidle_suspend(int index)
{
return -EOPNOTSUPP;
}
#endif
-static inline int arm_cpuidle_suspend(int index)
-{
- return cpu_suspend(index);
-}
#endif
diff --git a/arch/arm64/include/asm/suspend.h b/arch/arm64/include/asm/suspend.h
index 003802f58963..59a5b0f1e81c 100644
--- a/arch/arm64/include/asm/suspend.h
+++ b/arch/arm64/include/asm/suspend.h
@@ -21,6 +21,6 @@ struct sleep_save_sp {
phys_addr_t save_ptr_stash_phys;
};
-extern int __cpu_suspend(unsigned long arg, int (*fn)(unsigned long));
+extern int cpu_suspend(unsigned long arg, int (*fn)(unsigned long));
extern void cpu_resume(void);
#endif
diff --git a/arch/arm64/kernel/cpuidle.c b/arch/arm64/kernel/cpuidle.c
index f8aa16973318..7ce589ca54a4 100644
--- a/arch/arm64/kernel/cpuidle.c
+++ b/arch/arm64/kernel/cpuidle.c
@@ -32,7 +32,7 @@ int arm_cpuidle_init(unsigned int cpu)
* Return: 0 on success, -EOPNOTSUPP if CPU suspend hook not initialized, CPU
* operations back-end error code otherwise.
*/
-int cpu_suspend(unsigned long arg)
+int arm_cpuidle_suspend(int index)
{
int cpu = smp_processor_id();
@@ -42,5 +42,5 @@ int cpu_suspend(unsigned long arg)
*/
if (!cpu_ops[cpu] || !cpu_ops[cpu]->cpu_suspend)
return -EOPNOTSUPP;
- return cpu_ops[cpu]->cpu_suspend(arg);
+ return cpu_ops[cpu]->cpu_suspend(index);
}
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index a0fc99a518b8..4be597228b14 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -203,7 +203,7 @@ static int __maybe_unused cpu_psci_cpu_suspend(unsigned long index)
if (!psci_power_state_loses_context(state[index - 1]))
ret = psci_ops.cpu_suspend(state[index - 1], 0);
else
- ret = __cpu_suspend(index, psci_suspend_finisher);
+ ret = cpu_suspend(index, psci_suspend_finisher);
return ret;
}
diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c
index d7daf45ae7a2..400e1265e205 100644
--- a/arch/arm64/kernel/suspend.c
+++ b/arch/arm64/kernel/suspend.c
@@ -51,13 +51,13 @@ void __init cpu_suspend_set_dbg_restorer(void (*hw_bp_restore)(void *))
}
/*
- * __cpu_suspend
+ * cpu_suspend
*
* arg: argument to pass to the finisher function
* fn: finisher function pointer
*
*/
-int __cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
+int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
{
struct mm_struct *mm = current->active_mm;
int ret;
@@ -82,7 +82,7 @@ int __cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
* We are resuming from reset with TTBR0_EL1 set to the
* idmap to enable the MMU; restore the active_mm mappings in
* TTBR0_EL1 unless the active_mm == &init_mm, in which case
- * the thread entered __cpu_suspend with TTBR0_EL1 set to
+ * the thread entered cpu_suspend with TTBR0_EL1 set to
* reserved TTBR0 page tables and should be restored as such.
*/
if (mm == &init_mm)
--
1.9.1
next prev parent reply other threads:[~2015-06-16 13:50 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-16 13:50 [PATCH 0/2] PSCI: system suspend support Sudeep Holla
2015-06-16 13:50 ` Sudeep Holla [this message]
2015-06-17 13:57 ` [PATCH 1/2] arm64: kernel: rename __cpu_suspend to keep it aligned with arm Lorenzo Pieralisi
2015-06-16 13:50 ` [PATCH 2/2] drivers: firmware: psci: add system suspend support Sudeep Holla
2015-06-17 15:08 ` Lorenzo Pieralisi
2015-06-17 15:41 ` Sudeep Holla
2015-06-18 14:41 ` [PATCH v2 0/3] PSCI: " Sudeep Holla
2015-06-18 14:41 ` [PATCH v2 1/3] arm64: kernel: rename __cpu_suspend to keep it aligned with arm Sudeep Holla
2015-06-18 14:55 ` Catalin Marinas
2015-06-18 15:08 ` Sudeep Holla
2015-06-19 13:50 ` Catalin Marinas
2015-06-18 14:41 ` [PATCH v2 2/3] drivers: firmware: psci: define more generic PSCI_FN_NATIVE macro Sudeep Holla
2015-09-14 13:17 ` Lorenzo Pieralisi
2015-09-14 13:21 ` Sudeep Holla
2015-06-18 14:41 ` [PATCH v2 3/3] drivers: firmware: psci: add system suspend support Sudeep Holla
2015-07-14 6:17 ` Jisheng Zhang
2015-07-14 9:14 ` Sudeep Holla
2015-07-14 9:50 ` Jisheng Zhang
2015-07-14 11:02 ` Sudeep Holla
2015-07-14 11:40 ` Jisheng Zhang
2015-07-14 13:18 ` Sudeep Holla
2015-07-15 2:34 ` Jisheng Zhang
2015-07-15 10:20 ` Sudeep Holla
2015-09-14 13:23 ` Lorenzo Pieralisi
2015-09-14 13:32 ` Sudeep Holla
2015-06-18 18:13 ` [PATCH v2 0/3] PSCI: " Ashwin Chaugule
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1434462640-19613-2-git-send-email-sudeep.holla@arm.com \
--to=sudeep.holla@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.