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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1CDDEF44847 for ; Fri, 10 Apr 2026 12:21:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:Subject:Cc:To:From:Message-ID:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: List-Owner; bh=2HK2S+YO7fB4ujSzajjkO7eLLa83jA73mkIKAqkhMZw=; b=BZzlYSr+O151cC KbhU7/VG0a2dsO8gZZrGsyg6moMtSxFlZWQI1udKmr1FO19cWxSiRJps2OiByS5tLl9PBM469WWLg /HFOrt5DMYtHnmCWqRyfTNctZHJ+tQ+1D8l4hOcJcw3FXHemqBqwXCQYMqRnABu9s9EOwLsLePLGG lahUH43XXN63yq0WdVatIVJLCgqvR7MP+wNUJubuweiISI3Hz7DR9cuus+c5EFiTyBwNiTcgvJklA WPhMIsvynusf2QTAgwKP+pYeAz1mgRoaT6CNpy95+Jv7ImWMU0tq0KUiaHxuOBx48dDtNAWD+z79k r/hdi1ccjkiPJjeFimtg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wBArY-0000000CCxA-42ke; Fri, 10 Apr 2026 12:21:29 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wBArO-0000000CCeW-1X8F; Fri, 10 Apr 2026 12:21:18 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Message-ID:Date:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To; bh=2HK2S+YO7fB4ujSzajjkO7eLLa83jA73mkIKAqkhMZw=; b=q138e2Fc5JfKjrJKfpR3cxnz19 kdlwEzCE4ooxztBCiWmaF672dYjKvQkw/6pisco9RdNl6G/0/C+5edM9vlQ0A+OBzkdoip/+MQcD8 a+dpzNlIUAXIF+p07xEb9p4T9SUdz9UFtvQYDl9PO/E2o25k8AnRRJ4Bhpzn53lwjwYbsuU9ofQcR zZlPO4VCw2JmramHrnvALL/vK6AveRPgvQUJBJHh56TcVgvSKc25BZm3FOdtClGpNmL+toXSxOcKl fnkhp9Ky+ZDTaoYHBcFClfw3prJcoAWEXghqqkcyFiNr5r+c9BbF2wtUbQWmcrudUnGF7NEpTjtmS Caeft/Qg==; Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by desiato.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wBArK-0000000DRRE-2KK2; Fri, 10 Apr 2026 12:21:16 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 6E75043A9E; Fri, 10 Apr 2026 12:21:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8E4B2C2BC87; Fri, 10 Apr 2026 12:21:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775823672; bh=tpcbJjrROej8+Ep0S4yh9w/0viNOJRSIBsQtj9nrduE=; h=Date:From:To:Cc:Subject:References:From; b=t+6BdojJde/UDdVdrSTxElEId1Y48xNZSVlMYQlGTL0WHNGFs3HWPQxpINyMlW0Tp I6cN87TfGyJy1fhgMX3eHxGWXyIRGEfK+oj+v7ZqgSkuHT9TIqDSO48kfeefrr2R+6 RZvls6BOQPsjm5E39PGBUAxS3ybrYUwTjTmhDryNFYGgOGgmcHGql9J5M/vSFS9Dpm Ps3dk0/gjV2/aMyaPlsNujNJN/7qos+7ycvHmAQEpnPn1tOePEJ6rKipC5ku3IQ4UE ud6vC+9M6N71X0VBW7hJfjso4CmI7VrrHXujC0k5eBTPHkHx5czFPyyVnepx/5Zgc1 GRj7R63OiiEsA== Date: Fri, 10 Apr 2026 14:21:09 +0200 Message-ID: <20260410120319.789114053@kernel.org> User-Agent: quilt/0.68 From: Thomas Gleixner To: LKML Cc: Michael Ellerman , linuxppc-dev@lists.ozlabs.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" , Richard Henderson , linux-alpha@vger.kernel.org, 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, Paul Walmsley , linux-riscv@lists.infradead.org, Heiko Carstens , linux-s390@vger.kernel.org, "David S. Miller" , sparclinux@vger.kernel.org Subject: [patch 33/38] powerpc: Select ARCH_HAS_RANDOM_ENTROPY References: <20260410120044.031381086@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260410_132114_935999_81837E55 X-CRM114-Status: UNSURE ( 9.52 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The only remaining usage of get_cycles() is to provide random_get_entropy(). Switch powerpc 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: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.org --- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/random.h | 13 +++++++++++++ arch/powerpc/include/asm/timex.h | 21 --------------------- 3 files changed, 14 insertions(+), 21 deletions(-) --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -150,6 +150,7 @@ config PPC select ARCH_HAS_PREEMPT_LAZY select ARCH_HAS_PTDUMP select ARCH_HAS_PTE_SPECIAL + select ARCH_HAS_RANDOM_ENTROPY select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE && PPC_BOOK3S_64 select ARCH_HAS_SET_MEMORY select ARCH_HAS_STRICT_KERNEL_RWX if (PPC_BOOK3S || PPC_8xx) && !HIBERNATION --- /dev/null +++ b/arch/powerpc/include/asm/random.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_POWERPC_RANDOM_H +#define _ASM_POWERPC_RANDOM_H + +#include +#include + +static inline unsigned long random_get_entropy(void) +{ + return mftb(); +} + +#endif /* _ASM_POWERPC_RANDOM_H */ --- a/arch/powerpc/include/asm/timex.h +++ b/arch/powerpc/include/asm/timex.h @@ -1,21 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_POWERPC_TIMEX_H -#define _ASM_POWERPC_TIMEX_H - -#ifdef __KERNEL__ - -/* - * PowerPC architecture timex specifications - */ - -#include -#include - -ostatic inline cycles_t get_cycles(void) -{ - return mftb(); -} -#define get_cycles get_cycles - -#endif /* __KERNEL__ */ -#endif /* _ASM_POWERPC_TIMEX_H */