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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 E9180D31A26 for ; Wed, 14 Jan 2026 08:27:41 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4drfPS2Ctpz2xPB; Wed, 14 Jan 2026 19:27:40 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=172.234.252.31 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1768379260; cv=none; b=mw8nASjQMKqQDE1GBLaYeW6IQYESdQyFFEcG39Jj3r/qeu9bCYwR73KTxrxPdMTV7hGr2EFkeuMU/Lx4XwQ/4VT0vXxyOetcp6Lcg8nPFZOIoou2z42rM1hNsvASrhxiR0KYImc10SY52HSS8alEhKThjHyKg5zcPxLzmk7/vMj1gYZaFeuBRSkl/jdG9LavH+jb5HxJEmGFW510Y2PfBtH6NvUWDraTSd76FtpUHpDWYH2MZ8bLaElAWst4Fr9dhE0Ol3WbLR3cW6dVarvFC+5lxywq9da40JfA6iRayR59Sf5kfTvePs8h0Skz2Xm4rEedvz4Dn1428n6/80R88g== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1768379260; c=relaxed/relaxed; bh=1QwCcuQ6a1BIxKAAHOyPaYUIVLvaGXhXWQxTl0ImiD4=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=HQUe4+11nz8qRyPJMIJ9bR7KsYL1nqYDnyr/X+Pxikxz1SoxCSPdDXdeCfszQ0X6AooiZVxT/mX4gCT9axVHoAiMuTexL/Bvb3C3/QNH3e/BU07kJD1QhaBnb4fZQUYk2SbVJb1HDQuFNg8rPOn2XcS4Gjh5XasoEbeE67E1a2Sp1xkIJDkcFSt2BvL0PjZH7iU441vMQTjQsGUInZGnAmeuIOYXuzMfz7WiIzt3h8l5OZqHz8k1ENEPJb44uh/nTWotxMbzJHB8MEvzzoBelaXp8U2oUImFuR19SHKb3J0fWbR3onSToCNfL5re0gPJvwh+3u2amsxFp900jHPBJA== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=eYpj8Thf; dkim-atps=neutral; spf=pass (client-ip=172.234.252.31; helo=sea.source.kernel.org; envelope-from=chleroy@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=eYpj8Thf; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=172.234.252.31; helo=sea.source.kernel.org; envelope-from=chleroy@kernel.org; receiver=lists.ozlabs.org) Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4drfPR25YRz2xFn for ; Wed, 14 Jan 2026 19:27:39 +1100 (AEDT) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 02D7D4026D; Wed, 14 Jan 2026 08:27:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2CEF0C4CEF7; Wed, 14 Jan 2026 08:27:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768379256; bh=NA3qo9DrxluI1phzSkZ0+eMoPIthmXtuUNEbkNpNeFM=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=eYpj8ThfBqr+GuQRVFLvsB9/BOMDgWAk5taqiwI/C0p5RqLoop9A4qmQJnrAx4F2O Vy7Pt5jB0HwOITRue+s6d6XqMD7jWpiKrZQJY/fgl9fZZ1p9XlyM5m+KoYTETYBYBX Pd11J3UOSSMXOOQvk8RCz83YFJHf/gVsynValiEsySKaw3Ja/2t8SwFP0i6vkh3W/Y sDfwPQiV5HjHE0GxQmVAdQyGGK4ujlcuBeoZz7cVHWscRs7eDYQFwBIAgwLb/a9C2X 7iO+V09kSK5Y6cQbsX416oc3pXtjorPqqHTNZwEHNCHZqj58XyXPHKVMYnviK2XRP0 LG95PDHo0Kgzw== Message-ID: Date: Wed, 14 Jan 2026 09:27:33 +0100 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] powerpc/vdso: Provide clock_getres_time64() To: =?UTF-8?Q?Thomas_Wei=C3=9Fschuh?= , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Andy Lutomirski , Thomas Gleixner , Vincenzo Frascino Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org References: <20260114-vdso-powerpc-align-v1-1-acf09373d568@linutronix.de> Content-Language: fr-FR From: "Christophe Leroy (CS GROUP)" In-Reply-To: <20260114-vdso-powerpc-align-v1-1-acf09373d568@linutronix.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Le 14/01/2026 à 08:26, Thomas Weißschuh a écrit : > For consistency with __vdso_clock_gettime64() there should also be a > 64-bit variant of clock_getres(). This will allow the extension of > CONFIG_COMPAT_32BIT_TIME to the vDSO and finally the removal of 32-bit > time types from the kernel and UAPI. > > Signed-off-by: Thomas Weißschuh Reviewed-by: Christophe Leroy (CS GROUP) > --- > Based on tip/timers/vdso. > > This was missed in the original vdso_getres_time64() series as powerpc > does not use include/vdso/gettime.h. > --- > arch/powerpc/include/asm/vdso/gettimeofday.h | 2 ++ > arch/powerpc/kernel/vdso/gettimeofday.S | 12 ++++++++++++ > arch/powerpc/kernel/vdso/vdso32.lds.S | 1 + > arch/powerpc/kernel/vdso/vgettimeofday.c | 6 ++++++ > 4 files changed, 21 insertions(+) > > diff --git a/arch/powerpc/include/asm/vdso/gettimeofday.h b/arch/powerpc/include/asm/vdso/gettimeofday.h > index ab3df12c8d94..8ea397e26ad0 100644 > --- a/arch/powerpc/include/asm/vdso/gettimeofday.h > +++ b/arch/powerpc/include/asm/vdso/gettimeofday.h > @@ -135,6 +135,8 @@ int __c_kernel_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts, > const struct vdso_time_data *vd); > int __c_kernel_clock_getres(clockid_t clock_id, struct old_timespec32 *res, > const struct vdso_time_data *vd); > +int __c_kernel_clock_getres_time64(clockid_t clock_id, struct __kernel_timespec *res, > + const struct vdso_time_data *vd); > #endif > int __c_kernel_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz, > const struct vdso_time_data *vd); > diff --git a/arch/powerpc/kernel/vdso/gettimeofday.S b/arch/powerpc/kernel/vdso/gettimeofday.S > index 79c967212444..1c8e51691bf8 100644 > --- a/arch/powerpc/kernel/vdso/gettimeofday.S > +++ b/arch/powerpc/kernel/vdso/gettimeofday.S > @@ -103,6 +103,18 @@ V_FUNCTION_BEGIN(__kernel_clock_getres) > cvdso_call __c_kernel_clock_getres > V_FUNCTION_END(__kernel_clock_getres) > > +/* > + * Exact prototype of clock_getres_time64() > + * > + * int __kernel_clock_getres(clockid_t clock_id, struct __timespec64 *res); > + * > + */ > +#ifndef __powerpc64__ > +V_FUNCTION_BEGIN(__kernel_clock_getres_time64) > + cvdso_call __c_kernel_clock_getres_time64 > +V_FUNCTION_END(__kernel_clock_getres_time64) > +#endif > + > > /* > * Exact prototype of time() > diff --git a/arch/powerpc/kernel/vdso/vdso32.lds.S b/arch/powerpc/kernel/vdso/vdso32.lds.S > index 72a1012b8a20..3f384a2526ae 100644 > --- a/arch/powerpc/kernel/vdso/vdso32.lds.S > +++ b/arch/powerpc/kernel/vdso/vdso32.lds.S > @@ -124,6 +124,7 @@ VERSION > __kernel_clock_gettime; > __kernel_clock_gettime64; > __kernel_clock_getres; > + __kernel_clock_getres_time64; > __kernel_time; > __kernel_get_tbfreq; > __kernel_sync_dicache; > diff --git a/arch/powerpc/kernel/vdso/vgettimeofday.c b/arch/powerpc/kernel/vdso/vgettimeofday.c > index 6f5167d81af5..3c194e1ab562 100644 > --- a/arch/powerpc/kernel/vdso/vgettimeofday.c > +++ b/arch/powerpc/kernel/vdso/vgettimeofday.c > @@ -35,6 +35,12 @@ int __c_kernel_clock_getres(clockid_t clock_id, struct old_timespec32 *res, > { > return __cvdso_clock_getres_time32_data(vd, clock_id, res); > } > + > +int __c_kernel_clock_getres_time64(clockid_t clock_id, struct __kernel_timespec *res, > + const struct vdso_time_data *vd) > +{ > + return __cvdso_clock_getres_data(vd, clock_id, res); > +} > #endif > > int __c_kernel_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz, > > --- > base-commit: 0e55e7636697077abceb2301d7d2718d75c34389 > change-id: 20260113-vdso-powerpc-align-e8e93664da2b > > Best regards,