From patchwork Tue Jun 16 13:50:39 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sudeep Holla X-Patchwork-Id: 6618181 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id F3E9DC0020 for ; Tue, 16 Jun 2015 13:54:04 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 134BD201E4 for ; Tue, 16 Jun 2015 13:54:04 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DBDEB20384 for ; Tue, 16 Jun 2015 13:54:01 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Z4rGz-0004Dx-3B; Tue, 16 Jun 2015 13:51:29 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Z4rGh-0004Ai-Tv for linux-arm-kernel@lists.infradead.org; Tue, 16 Jun 2015 13:51:13 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7788859; Tue, 16 Jun 2015 06:51:07 -0700 (PDT) Received: from e103737-lin.cambridge.arm.com (e103737-lin.cambridge.arm.com [10.1.207.150]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 42DF43F25E; Tue, 16 Jun 2015 06:50:49 -0700 (PDT) From: 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 Message-Id: <1434462640-19613-2-git-send-email-sudeep.holla@arm.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1434462640-19613-1-git-send-email-sudeep.holla@arm.com> References: <1434462640-19613-1-git-send-email-sudeep.holla@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150616_065112_115544_AFBF4EB0 X-CRM114-Status: GOOD ( 13.43 ) X-Spam-Score: -5.6 (-----) Cc: mark.rutland@arm.com, robh@kernel.org, lorenzo.pieralisi@arm.com, arnd@arndb.de, marc.zyngier@arm.com, catalin.marinas@arm.com, will.deacon@arm.com, ashwin.chaugule@linaro.org, Sudeep Holla , olof@lixom.net, rmk+kernel@arm.linux.org.uk, Charles Garcia-Tobin X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 Cc: Lorenzo Pieralisi Signed-off-by: Sudeep Holla Reviewed-by: Lorenzo Pieralisi --- 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)