From mboxrd@z Thu Jan 1 00:00:00 1970 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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 64E12F44850 for ; Fri, 10 Apr 2026 12:20:28 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id CE5516B00C3; Fri, 10 Apr 2026 08:20:27 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C95396B00C5; Fri, 10 Apr 2026 08:20:27 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B83D06B00C6; Fri, 10 Apr 2026 08:20:27 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id A359B6B00C3 for ; Fri, 10 Apr 2026 08:20:27 -0400 (EDT) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 74ABC5888E for ; Fri, 10 Apr 2026 12:20:27 +0000 (UTC) X-FDA: 84642554094.13.E40C2AE Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf10.hostedemail.com (Postfix) with ESMTP id A7FB3C000E for ; Fri, 10 Apr 2026 12:20:25 +0000 (UTC) Authentication-Results: imf10.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=c0dC5Jtr; spf=pass (imf10.hostedemail.com: domain of tglx@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=tglx@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1775823625; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding:in-reply-to: references:references:dkim-signature; bh=ckn3790Plbsh2S84qXvQH3wmGMizlSPUdQHepF2eyP4=; b=27sLmVLuXpHgXnkagjA4Qwvh4BTAIOF3kRK7FJZd14jxNKQDjjVlA3jY8qt5kL29PAANt0 vZH7TCxIlfJAwGytG5Nd8tN9eaHlOVgidD6hGC8qWBaVv0R439B6ak+z23lGhf/zg3wwJ5 +yPdA3iAc2sfipKLDrnOtmL4m6pew1g= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1775823625; a=rsa-sha256; cv=none; b=VlF/et6Bz2ZhsDqHeGDDsBAz5gqeFFEL5CIwWP2I8Ywt4sfM55Bs8t3tkdJG6zLA7H+pQz PLwb19WDiijVuYPj+k4KYsqBRk5DpiBY0xTfFMdajxUcRaqgYwVlkEMl5nFOiWBxk2mlgJ sLqbfIn846QfbKmhkZH0zU8/+krq7ko= ARC-Authentication-Results: i=1; imf10.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=c0dC5Jtr; spf=pass (imf10.hostedemail.com: domain of tglx@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=tglx@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id A040C438DE; Fri, 10 Apr 2026 12:20:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8B8D1C2BCAF; Fri, 10 Apr 2026 12:20:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775823624; bh=oFanz67wDB6XocOAPDGw4dDZpTIkPCesLmisdDG6nxo=; h=Date:From:To:Cc:Subject:References:From; b=c0dC5JtrlZ2hDwVhQHVakSSF0GbYurUcyOeInN2NikRGB2GB116TXZbw4nZgMtYST +trrlORaNRGlhOHpfrC+lW1HFBRAEy8GyOUXKZu1wlydXKozlVO6l7tAEsojNrD9kY z8EDy3AU6BDmVg1em2KMGfc38GeNfIIV9PZdmIDh6XXPID1ZvpPfEKL37BFIXkriEy vg9bLTMeocXCte6TCzTTMg21Eh6HrXJDyZdGV1tmWvL/lAElJukNPv/QpJCLNXioOw AQtioNlgi2FcvW/yMQPolJ5GR/97GritVQBv4kElLuN4ah4YH0PTQC3eZtbzxU1vfd IORnVjKLVUNIw== Date: Fri, 10 Apr 2026 14:20:21 +0200 Message-ID: <20260410120319.131582521@kernel.org> User-Agent: quilt/0.68 From: Thomas Gleixner To: LKML Cc: Richard Henderson , linux-alpha@vger.kernel.org, Arnd Bergmann , x86@kernel.org, Lu Baolu , iommu@lists.linux.dev, Michael Grzeschik , netdev@vger.kernel.org, linux-wireless@vger.kernel.org, Herbert Xu , linux-crypto@vger.kernel.org, Vlastimil Babka , linux-mm@kvack.org, David Woodhouse , Bernie Thompson , linux-fbdev@vger.kernel.org, "Theodore Tso" , linux-ext4@vger.kernel.org, Andrew Morton , Uladzislau Rezki , Marco Elver , Dmitry Vyukov , kasan-dev@googlegroups.com, Andrey Ryabinin , Thomas Sailer , linux-hams@vger.kernel.org, "Jason A. Donenfeld" , Russell King , linux-arm-kernel@lists.infradead.org, Catalin Marinas , Huacai Chen , loongarch@lists.linux.dev, Geert Uytterhoeven , linux-m68k@lists.linux-m68k.org, Dinh Nguyen , Jonas Bonn , linux-openrisc@vger.kernel.org, Helge Deller , linux-parisc@vger.kernel.org, Michael Ellerman , linuxppc-dev@lists.ozlabs.org, Paul Walmsley , linux-riscv@lists.infradead.org, Heiko Carstens , linux-s390@vger.kernel.org, "David S. Miller" , sparclinux@vger.kernel.org Subject: [patch 23/38] alpha: Select ARCH_HAS_RANDOM_ENTROPY References: <20260410120044.031381086@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Rspamd-Server: rspam12 X-Stat-Signature: sryc1y3thod5p7z88ytfbomk8wtaguqa X-Rspamd-Queue-Id: A7FB3C000E X-Rspam-User: X-HE-Tag: 1775823625-171481 X-HE-Meta: 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 Jkno9Fgv hK4TSj6NiDz5pg4rQ/CNBzcyyu79Bn5FjGte+Cy5kpj9L1Xo5TTuGxFWoCiX4l0gYrkfYcvmXUOqZ2lhVU9zWXG2BLyU9asVwVhXJbTLte1AEqOgR5un3vxvz2pAPNl1aiY8P8Qqk9vf6ASQnaWWVnxI6w2N5KRc0cG7/kqhEF6lqBIa8rfOVDaUOmBpcwINAk7IgS8s+gkS+IGJSf+8cei25uORwOlQxL+CMIzq/dzR7e/YlY2RZ2iqbUIk5AaaOmxBAWlvfZVysdZ5Y+J7AVPQI/v8Nw0uSrjdJEzP8FSmjRWH8FDxKiOUv83vX4JRr18LZcRAmh6xSumAMm2wVuNTacJyc86xavhHQugeCS8c47THVYwBQnttSKC/MLNekwFR7NdNP/Vpb5SOMSNY4UlO8t4LRz5wlgQFElZPPz+kh7zQ= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: The only remaining usage of get_cycles() is to provide random_get_entropy(). Switch alpha over to the new scheme of selecting ARCH_HAS_RANDOM_ENTROPY and providing random_get_entropy() in asm/random.h. Remove asm/timex.h as it has no functionality anymore. Signed-off-by: Thomas Gleixner Cc: Richard Henderson Cc: linux-alpha@vger.kernel.org --- arch/alpha/Kconfig | 1 + arch/alpha/include/asm/random.h | 14 ++++++++++++++ arch/alpha/include/asm/timex.h | 26 -------------------------- 3 files changed, 15 insertions(+), 26 deletions(-) --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -5,6 +5,7 @@ config ALPHA select ARCH_32BIT_USTAT_F_TINODE select ARCH_HAS_CURRENT_STACK_POINTER select ARCH_HAS_DMA_OPS if PCI + select ARCH_HAS_RANDOM_ENTROPY select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_MIGHT_HAVE_PC_SERIO select ARCH_MODULE_NEEDS_WEAK_PER_CPU if SMP --- /dev/null +++ b/arch/alpha/include/asm/random.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASMALPHA_RANDOM_H +#define _ASMALPHA_RANDOM_H + +/* Use the cycle counter for entropy. */ +static inline unsigned long random_get_entropy(void) +{ + unsigned long ret; + + __asm__ __volatile__ ("rpcc %0" : "=r"(ret)); + return ret; +} + +#endif --- a/arch/alpha/include/asm/timex.h +++ /dev/null @@ -1,26 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * linux/include/asm-alpha/timex.h - * - * ALPHA architecture timex specifications - */ -#ifndef _ASMALPHA_TIMEX_H -#define _ASMALPHA_TIMEX_H - -/* - * Standard way to access the cycle counter. - * Currently only used on SMP for scheduling. - * - * Only the low 32 bits are available as a continuously counting entity. - * But this only means we'll force a reschedule every 8 seconds or so, - * which isn't an evil thing. - */ -static inline cycles_t get_cycles (void) -{ - cycles_t ret; - __asm__ __volatile__ ("rpcc %0" : "=r"(ret)); - return ret; -} -#define get_cycles get_cycles - -#endif