From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2143635F8AF for ; Wed, 14 Jan 2026 08:27:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768379258; cv=none; b=MLSQFbSF52AAESvTw8eaGAg8y7x4ry8g5L6DU9U8BvQDEnWfGYENCkWMpkGsbvTElRRjW6YAmbn4Q2YO/klzHI6Hk+2pen7LuucCes4nzvmIWH2kgtVIy7M766GZ7AJBhXHxql/odyPWus6895hLhyto5tuy6DMlG1CnJdV1A74= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768379258; c=relaxed/simple; bh=NA3qo9DrxluI1phzSkZ0+eMoPIthmXtuUNEbkNpNeFM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=AmviPdRUuu2naQJ6x787BvZHtPb0YCbn/TmAcHJkBJ7ompPjjzc7Kkmy+Uiu+El7oxO2M4aR547QJe+9vmCP4wCrJcesPFCqzzhoOoTp6JaWxAYvmTZDseA89VBywYsHHNMGkIXdFjmydHF4FuQLAw0e9SRdddZMBQqlcgI4bHc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eYpj8Thf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="eYpj8Thf" 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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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,