From patchwork Thu Feb 23 11:29:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saurabh Singh Sengar X-Patchwork-Id: 657218 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA3F3C636D6 for ; Thu, 23 Feb 2023 11:29:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233883AbjBWL3L (ORCPT ); Thu, 23 Feb 2023 06:29:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60776 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233509AbjBWL3L (ORCPT ); Thu, 23 Feb 2023 06:29:11 -0500 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 4529C16AD2; Thu, 23 Feb 2023 03:29:10 -0800 (PST) Received: from linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net (linux.microsoft.com [13.77.154.182]) by linux.microsoft.com (Postfix) with ESMTPSA id A001320B9C3E; Thu, 23 Feb 2023 03:29:09 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com A001320B9C3E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1677151749; bh=9hqMgwt+9rfgzKvMywqn/H23HiHnKG9S9L6A/+1pzh0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=i29yH4QlMPKS4SW/ENT64Kq927tWbvAyF40myhCMlmODmtS0isu0yeES40Bk7yQln 9LxjzA3AdY/HaT+O3RgUj41vJ6xOtsSIEM27c6bcB7L6PlsB3afNdTOcdj9p9aLOWQ 8BrLEF6ElLVt6kJSJnJZL9WhCMwY6HoOCjAM91yg= From: Saurabh Sengar To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, daniel.lezcano@linaro.org, tglx@linutronix.de, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org, mikelley@microsoft.com, lenb@kernel.org, rafael@kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH v7 1/5] drivers/clocksource/hyper-v: non ACPI support in hyperv clock Date: Thu, 23 Feb 2023 03:29:01 -0800 Message-Id: <1677151745-16521-2-git-send-email-ssengar@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1677151745-16521-1-git-send-email-ssengar@linux.microsoft.com> References: <1677151745-16521-1-git-send-email-ssengar@linux.microsoft.com> Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Add a placeholder function for the hv_setup_stimer0_irq API to accommodate systems without ACPI support. Since this function is not utilized on x86/x64 systems and non-ACPI support is only intended for x86/x64 systems, a placeholder function is sufficient for now and can be improved upon if necessary in the future. Signed-off-by: Saurabh Sengar Reviewed-by: Michael Kelley --- drivers/clocksource/hyperv_timer.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyperv_timer.c index c0cef92b12b8..f32948c8a96f 100644 --- a/drivers/clocksource/hyperv_timer.c +++ b/drivers/clocksource/hyperv_timer.c @@ -49,7 +49,7 @@ static bool direct_mode_enabled; static int stimer0_irq = -1; static int stimer0_message_sint; -static DEFINE_PER_CPU(long, stimer0_evt); +static __maybe_unused DEFINE_PER_CPU(long, stimer0_evt); /* * Common code for stimer0 interrupts coming via Direct Mode or @@ -68,7 +68,7 @@ EXPORT_SYMBOL_GPL(hv_stimer0_isr); * stimer0 interrupt handler for architectures that support * per-cpu interrupts, which also implies Direct Mode. */ -static irqreturn_t hv_stimer0_percpu_isr(int irq, void *dev_id) +static irqreturn_t __maybe_unused hv_stimer0_percpu_isr(int irq, void *dev_id) { hv_stimer0_isr(); return IRQ_HANDLED; @@ -196,6 +196,7 @@ void __weak hv_remove_stimer0_handler(void) { }; +#ifdef CONFIG_ACPI /* Called only on architectures with per-cpu IRQs (i.e., not x86/x64) */ static int hv_setup_stimer0_irq(void) { @@ -230,6 +231,16 @@ static void hv_remove_stimer0_irq(void) stimer0_irq = -1; } } +#else +static int hv_setup_stimer0_irq(void) +{ + return 0; +} + +static void hv_remove_stimer0_irq(void) +{ +} +#endif /* hv_stimer_alloc - Global initialization of the clockevent and stimer0 */ int hv_stimer_alloc(bool have_percpu_irqs)