From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: Will Deacon <will.deacon@arm.com>
Cc: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org,
linux-kselftest@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
Arnd Bergmann <arnd@arndb.de>,
Russell King <linux@armlinux.org.uk>,
Ralf Baechle <ralf@linux-mips.org>,
Paul Burton <paul.burton@mips.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Mark Salyzyn <salyzyn@android.com>,
Peter Collingbourne <pcc@google.com>,
Shuah Khan <shuah@kernel.org>,
Dmitry Safonov <0x7f454c46@gmail.com>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Huw Davies <huw@codeweavers.com>,
Shijith Thotton <sthotton@marvell.com>,
Andre Przywara <andre.przywara@arm.com>
Subject: Re: [PATCH v7 04/25] arm64: Substitute gettimeofday with C implementation
Date: Mon, 24 Jun 2019 14:59:59 +0100 [thread overview]
Message-ID: <13d00991-aaa0-72f9-4556-1c92eceabd07@arm.com> (raw)
In-Reply-To: <20190624133607.GI29497@fuggles.cambridge.arm.com>
On 24/06/2019 14:36, Will Deacon wrote:
> Hi Vincenzo,
>
> On Fri, Jun 21, 2019 at 10:52:31AM +0100, Vincenzo Frascino wrote:
>> To take advantage of the commonly defined vdso interface for
>> gettimeofday the architectural code requires an adaptation.
>>
>> Re-implement the gettimeofday vdso in C in order to use lib/vdso.
>>
>> With the new implementation arm64 gains support for CLOCK_BOOTTIME
>> and CLOCK_TAI.
>>
>> Cc: Catalin Marinas <catalin.marinas@arm.com>
>> Cc: Will Deacon <will.deacon@arm.com>
>> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
>> Tested-by: Shijith Thotton <sthotton@marvell.com>
>> Tested-by: Andre Przywara <andre.przywara@arm.com>
>> ---
>> arch/arm64/Kconfig | 2 +
>> arch/arm64/include/asm/vdso/gettimeofday.h | 86 ++++++
>> arch/arm64/include/asm/vdso/vsyscall.h | 53 ++++
>> arch/arm64/include/asm/vdso_datapage.h | 48 ---
>> arch/arm64/kernel/asm-offsets.c | 33 +-
>> arch/arm64/kernel/vdso.c | 51 +---
>> arch/arm64/kernel/vdso/Makefile | 34 ++-
>> arch/arm64/kernel/vdso/gettimeofday.S | 334 ---------------------
>> arch/arm64/kernel/vdso/vgettimeofday.c | 28 ++
>
> I'm concerned about an apparent semantic change introduced by your patch:
>
>> +static __always_inline u64 __arch_get_hw_counter(s32 clock_mode)
>> +{
>> + u64 res;
>> +
>> + asm volatile("mrs %0, cntvct_el0" : "=r" (res) :: "memory");
>> +
>> + return res;
>> +}
>
> vs:
>
>> - .macro get_clock_shifted_nsec res, cycle_last, mult
>> - /* Read the virtual counter. */
>> - isb
>> - mrs x_tmp, cntvct_el0
>> - /* Calculate cycle delta and convert to ns. */
>> - sub \res, x_tmp, \cycle_last
>> - /* We can only guarantee 56 bits of precision. */
>> - movn x_tmp, #0xff00, lsl #48
>> - and \res, x_tmp, \res
>> - mul \res, \res, \mult
>> - /*
>> - * Fake address dependency from the value computed from the counter
>> - * register to subsequent data page accesses so that the sequence
>> - * locking also orders the read of the counter.
>> - */
>> - and x_tmp, \res, xzr
>> - add vdso_data, vdso_data, x_tmp
>> - .endm
>
> It looks like you're dropping both the preceding ISB (allowing the counter
> value to be speculated) and also the subsequent dependency (allowing the
> seq lock to be speculated). If I've missed them, apologies, but I couldn't
> spot them elsewhere in this patch.
>
> __arch_get_hw_counter should probably be identical to __arch_counter_get_cntvct
> to avoid these problems. I guess we don't need to care about the case where
> the counter is unstable, since we'll just disable the vDSO altogether on
> such systems?
>
Oops, I forgot to mirror your patch that introduces this change. I will post a
fix in reply to this email.
> Will
>
--
Regards,
Vincenzo
WARNING: multiple messages have this Message-ID (diff)
From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: Will Deacon <will.deacon@arm.com>
Cc: linux-arch@vger.kernel.org, Shuah Khan <shuah@kernel.org>,
Shijith Thotton <sthotton@marvell.com>,
Andre Przywara <andre.przywara@arm.com>,
Arnd Bergmann <arnd@arndb.de>, Huw Davies <huw@codeweavers.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Dmitry Safonov <0x7f454c46@gmail.com>,
linux-kernel@vger.kernel.org, Ralf Baechle <ralf@linux-mips.org>,
linux-mips@vger.kernel.org, Paul Burton <paul.burton@mips.com>,
linux-kselftest@vger.kernel.org,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Russell King <linux@armlinux.org.uk>,
Thomas Gleixner <tglx@linutronix.de>,
Mark Salyzyn <salyzyn@android.com>,
Peter Collingbourne <pcc@google.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v7 04/25] arm64: Substitute gettimeofday with C implementation
Date: Mon, 24 Jun 2019 14:59:59 +0100 [thread overview]
Message-ID: <13d00991-aaa0-72f9-4556-1c92eceabd07@arm.com> (raw)
In-Reply-To: <20190624133607.GI29497@fuggles.cambridge.arm.com>
On 24/06/2019 14:36, Will Deacon wrote:
> Hi Vincenzo,
>
> On Fri, Jun 21, 2019 at 10:52:31AM +0100, Vincenzo Frascino wrote:
>> To take advantage of the commonly defined vdso interface for
>> gettimeofday the architectural code requires an adaptation.
>>
>> Re-implement the gettimeofday vdso in C in order to use lib/vdso.
>>
>> With the new implementation arm64 gains support for CLOCK_BOOTTIME
>> and CLOCK_TAI.
>>
>> Cc: Catalin Marinas <catalin.marinas@arm.com>
>> Cc: Will Deacon <will.deacon@arm.com>
>> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
>> Tested-by: Shijith Thotton <sthotton@marvell.com>
>> Tested-by: Andre Przywara <andre.przywara@arm.com>
>> ---
>> arch/arm64/Kconfig | 2 +
>> arch/arm64/include/asm/vdso/gettimeofday.h | 86 ++++++
>> arch/arm64/include/asm/vdso/vsyscall.h | 53 ++++
>> arch/arm64/include/asm/vdso_datapage.h | 48 ---
>> arch/arm64/kernel/asm-offsets.c | 33 +-
>> arch/arm64/kernel/vdso.c | 51 +---
>> arch/arm64/kernel/vdso/Makefile | 34 ++-
>> arch/arm64/kernel/vdso/gettimeofday.S | 334 ---------------------
>> arch/arm64/kernel/vdso/vgettimeofday.c | 28 ++
>
> I'm concerned about an apparent semantic change introduced by your patch:
>
>> +static __always_inline u64 __arch_get_hw_counter(s32 clock_mode)
>> +{
>> + u64 res;
>> +
>> + asm volatile("mrs %0, cntvct_el0" : "=r" (res) :: "memory");
>> +
>> + return res;
>> +}
>
> vs:
>
>> - .macro get_clock_shifted_nsec res, cycle_last, mult
>> - /* Read the virtual counter. */
>> - isb
>> - mrs x_tmp, cntvct_el0
>> - /* Calculate cycle delta and convert to ns. */
>> - sub \res, x_tmp, \cycle_last
>> - /* We can only guarantee 56 bits of precision. */
>> - movn x_tmp, #0xff00, lsl #48
>> - and \res, x_tmp, \res
>> - mul \res, \res, \mult
>> - /*
>> - * Fake address dependency from the value computed from the counter
>> - * register to subsequent data page accesses so that the sequence
>> - * locking also orders the read of the counter.
>> - */
>> - and x_tmp, \res, xzr
>> - add vdso_data, vdso_data, x_tmp
>> - .endm
>
> It looks like you're dropping both the preceding ISB (allowing the counter
> value to be speculated) and also the subsequent dependency (allowing the
> seq lock to be speculated). If I've missed them, apologies, but I couldn't
> spot them elsewhere in this patch.
>
> __arch_get_hw_counter should probably be identical to __arch_counter_get_cntvct
> to avoid these problems. I guess we don't need to care about the case where
> the counter is unstable, since we'll just disable the vDSO altogether on
> such systems?
>
Oops, I forgot to mirror your patch that introduces this change. I will post a
fix in reply to this email.
> Will
>
--
Regards,
Vincenzo
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next prev parent reply other threads:[~2019-06-24 14:00 UTC|newest]
Thread overview: 307+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-21 9:52 [PATCH v7 00/25] Unify vDSOs across more architectures Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 01/25] kernel: Standardize vdso_datapage Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:44 ` [tip:timers/vdso] vdso: Define standardized vdso_datapage tip-bot for Vincenzo Frascino
2019-06-24 13:56 ` [PATCH v7 01/25] kernel: Standardize vdso_datapage Catalin Marinas
2019-06-24 13:56 ` Catalin Marinas
2019-06-24 13:56 ` Catalin Marinas
2019-06-25 7:49 ` [tip:timers/vdso] vdso: Remove superfluous #ifdef __KERNEL__ in vdso/datapage.h tip-bot for Catalin Marinas
2019-06-26 12:34 ` tip-bot for Catalin Marinas
2019-06-21 9:52 ` [PATCH v7 02/25] kernel: Define gettimeofday vdso common code Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:43 ` [tip:timers/vdso] hrtimer: Split out hrtimer defines into separate header tip-bot for Vincenzo Frascino
2019-06-23 23:45 ` [tip:timers/vdso] lib/vdso: Provide generic VDSO implementation tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 03/25] kernel: Unify update_vsyscall implementation Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-21 10:49 ` Huw Davies
2019-06-21 10:49 ` Huw Davies
2019-06-23 23:46 ` [tip:timers/vdso] timekeeping: Provide a generic update_vsyscall() implementation tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 04/25] arm64: Substitute gettimeofday with C implementation Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:47 ` [tip:timers/vdso] arm64: vdso: Substitute gettimeofday() " tip-bot for Vincenzo Frascino
2019-06-24 13:36 ` [PATCH v7 04/25] arm64: Substitute gettimeofday " Will Deacon
2019-06-24 13:36 ` Will Deacon
2019-06-24 13:59 ` Vincenzo Frascino [this message]
2019-06-24 13:59 ` Vincenzo Frascino
2019-06-25 16:18 ` [PATCH 1/3] lib/vdso: Delay mask application in do_hres() Vincenzo Frascino
2019-06-25 16:18 ` Vincenzo Frascino
2019-06-25 16:18 ` [PATCH 2/3] arm64: Fix __arch_get_hw_counter() implementation Vincenzo Frascino
2019-06-25 16:18 ` Vincenzo Frascino
2019-06-26 12:38 ` [tip:timers/vdso] " tip-bot for Vincenzo Frascino
2019-06-25 16:18 ` [PATCH 3/3] arm64: compat: " Vincenzo Frascino
2019-06-25 16:18 ` Vincenzo Frascino
2019-06-26 12:39 ` [tip:timers/vdso] " tip-bot for Vincenzo Frascino
2019-06-25 17:02 ` [PATCH 1/3] lib/vdso: Delay mask application in do_hres() Thomas Gleixner
2019-06-25 17:02 ` Thomas Gleixner
2019-06-25 18:27 ` Thomas Gleixner
2019-06-25 18:27 ` Thomas Gleixner
2019-06-25 20:15 ` Andy Lutomirski
2019-06-25 20:15 ` Andy Lutomirski
2019-06-25 20:15 ` Andy Lutomirski
2019-06-25 20:15 ` Andy Lutomirski
2019-06-25 22:24 ` Thomas Gleixner
2019-06-25 22:24 ` Thomas Gleixner
2019-06-25 22:24 ` Thomas Gleixner
2019-06-25 22:24 ` Thomas Gleixner
2019-06-26 6:38 ` Thomas Gleixner
2019-06-26 6:38 ` Thomas Gleixner
2019-06-26 9:25 ` Vincenzo Frascino
2019-06-26 9:25 ` Vincenzo Frascino
2019-06-26 10:02 ` lib/vdso: Make delta calculation work correctly Thomas Gleixner
2019-06-26 11:08 ` Vincenzo Frascino
2019-06-26 11:08 ` Vincenzo Frascino
2019-06-26 12:37 ` [tip:timers/vdso] " tip-bot for Thomas Gleixner
2019-06-24 13:58 ` [PATCH v7 04/25] arm64: Substitute gettimeofday with C implementation Catalin Marinas
2019-06-24 13:58 ` Catalin Marinas
2019-06-24 13:58 ` Catalin Marinas
2019-06-25 7:49 ` [tip:timers/vdso] arm64: vdso: Remove unnecessary asm-offsets.c definitions tip-bot for Catalin Marinas
2019-06-26 12:35 ` tip-bot for Catalin Marinas
2019-06-25 15:33 ` [PATCH v7 04/25] arm64: Substitute gettimeofday with C implementation Dave Martin
2019-06-25 15:33 ` Dave Martin
2019-06-26 13:27 ` Vincenzo Frascino
2019-06-26 13:27 ` Vincenzo Frascino
2019-06-26 16:14 ` Dave Martin
2019-06-26 16:14 ` Dave Martin
2019-06-26 19:01 ` Vincenzo Frascino
2019-06-26 19:01 ` Vincenzo Frascino
2019-06-27 10:01 ` Dave Martin
2019-06-27 10:01 ` Dave Martin
2019-06-27 10:57 ` Vincenzo Frascino
2019-06-27 10:57 ` Vincenzo Frascino
2019-06-27 11:27 ` Dave Martin
2019-06-27 11:27 ` Dave Martin
2019-06-27 11:59 ` Vincenzo Frascino
2019-06-27 11:59 ` Vincenzo Frascino
2019-06-27 11:59 ` Vincenzo Frascino
2019-06-27 14:38 ` Dave Martin
2019-06-27 14:38 ` Dave Martin
2019-06-27 15:34 ` Vincenzo Frascino
2019-06-27 15:34 ` Vincenzo Frascino
2019-06-25 17:43 ` [PATCH] arm64: vdso: Fix compilation with clang < 8 Vincenzo Frascino
2019-06-25 17:43 ` Vincenzo Frascino
2019-06-26 11:36 ` [PATCH v2] arm64: vdso: Fix compilation with clang older then 8 Vincenzo Frascino
2019-06-26 11:36 ` Vincenzo Frascino
2019-06-26 12:39 ` [tip:timers/vdso] arm64: vdso: Fix compilation with clang older than 8 tip-bot for Vincenzo Frascino
[not found] ` <CGME20190628130921eucas1p239935b0771032c331911eacc1a69dd2e@eucas1p2.samsung.com>
2019-06-28 13:09 ` [PATCH v7 04/25] arm64: Substitute gettimeofday with C implementation Marek Szyprowski
2019-06-28 13:09 ` Marek Szyprowski
2019-06-28 14:32 ` Vincenzo Frascino
2019-06-28 14:32 ` Vincenzo Frascino
2019-06-28 16:50 ` Sylwester Nawrocki
2019-06-28 16:50 ` Sylwester Nawrocki
2019-06-28 16:50 ` Sylwester Nawrocki
2019-06-29 6:58 ` Vincenzo Frascino
2019-06-29 6:58 ` Vincenzo Frascino
2019-07-08 12:57 ` Sylwester Nawrocki
2019-07-08 12:57 ` Sylwester Nawrocki
2019-07-08 12:57 ` Sylwester Nawrocki
2019-07-08 13:09 ` Vincenzo Frascino
2019-07-08 13:09 ` Vincenzo Frascino
2019-07-08 13:09 ` Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 05/25] arm64: Build vDSO with -ffixed-x18 Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:48 ` [tip:timers/vdso] arm64: vdso: " tip-bot for Peter Collingbourne
2019-06-21 9:52 ` [PATCH v7 06/25] arm64: compat: Add missing syscall numbers Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:48 ` [tip:timers/vdso] " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 07/25] arm64: compat: Expose signal related structures Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:49 ` [tip:timers/vdso] " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 08/25] arm64: compat: Generate asm offsets for signals Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:50 ` [tip:timers/vdso] " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 09/25] lib: vdso: Add compat support Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:45 ` [tip:timers/vdso] lib/vdso: " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 10/25] arm64: compat: Add vDSO Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:51 ` [tip:timers/vdso] " tip-bot for Vincenzo Frascino
2019-06-24 14:00 ` [PATCH v7 10/25] " Catalin Marinas
2019-06-24 14:00 ` Catalin Marinas
2019-06-24 14:00 ` Catalin Marinas
2019-06-25 7:50 ` [tip:timers/vdso] arm64: compat: No need for pre-ARMv7 barriers on an ARMv8 system tip-bot for Catalin Marinas
2019-06-26 12:36 ` tip-bot for Catalin Marinas
2019-07-10 4:02 ` [PATCH v7 10/25] arm64: compat: Add vDSO John Stultz
2019-07-10 4:02 ` John Stultz
2019-07-10 4:02 ` John Stultz
2019-07-10 6:12 ` Thomas Gleixner
2019-07-10 6:12 ` Thomas Gleixner
2019-07-10 6:12 ` Thomas Gleixner
2019-07-10 9:48 ` Vincenzo Frascino
2019-07-10 9:48 ` Vincenzo Frascino
2019-07-10 8:27 ` Will Deacon
2019-07-10 8:27 ` Will Deacon
2019-07-10 8:27 ` Will Deacon
2019-07-10 8:58 ` Thomas Gleixner
2019-07-10 8:58 ` Thomas Gleixner
2019-07-10 8:58 ` Thomas Gleixner
2019-07-10 9:12 ` Will Deacon
2019-07-10 9:12 ` Will Deacon
2019-07-10 9:12 ` Will Deacon
2019-07-10 9:47 ` Vincenzo Frascino
2019-07-10 9:47 ` Vincenzo Frascino
2019-07-10 9:47 ` Vincenzo Frascino
2019-07-10 13:41 ` Vincenzo Frascino
2019-07-10 13:41 ` Vincenzo Frascino
2019-07-10 13:41 ` Vincenzo Frascino
2019-07-10 13:04 ` [PATCH] arm64: vdso: Fix ABI regression in compat vdso Vincenzo Frascino
2019-07-10 13:04 ` Vincenzo Frascino
2019-07-10 13:25 ` Will Deacon
2019-07-10 13:25 ` Will Deacon
2019-07-10 13:42 ` Vincenzo Frascino
2019-07-10 13:42 ` Vincenzo Frascino
2019-07-10 14:01 ` [PATCH v2] " Vincenzo Frascino
2019-07-10 14:01 ` Vincenzo Frascino
2019-07-10 15:44 ` John Stultz
2019-07-10 15:44 ` John Stultz
2019-07-10 15:44 ` John Stultz
2019-07-10 15:53 ` Vincenzo Frascino
2019-07-10 15:53 ` Vincenzo Frascino
2019-07-10 15:53 ` Vincenzo Frascino
2019-07-11 9:45 ` Will Deacon
2019-07-11 9:45 ` Will Deacon
2019-07-11 10:34 ` Thomas Gleixner
2019-07-11 10:34 ` Thomas Gleixner
2019-07-11 11:32 ` Will Deacon
2019-07-11 11:32 ` Will Deacon
2019-06-21 9:52 ` [PATCH v7 11/25] arm64: Refactor vDSO code Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:51 ` [tip:timers/vdso] arm64: vdso: " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 12/25] arm64: compat: vDSO setup for compat layer Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:52 ` [tip:timers/vdso] arm64: compat: VDSO " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 13/25] arm64: elf: vDSO code page discovery Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:53 ` [tip:timers/vdso] arm64: elf: VDSO " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 14/25] arm64: compat: Get sigreturn trampolines from vDSO Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:53 ` [tip:timers/vdso] " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 15/25] arm64: Add vDSO compat support Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:54 ` [tip:timers/vdso] arm64: vdso: Enable " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 16/25] arm: Add support for generic vDSO Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-12-04 13:51 ` [PATCH v7 16/25] arm: Add support for generic vDSO (causing crash) Guenter Roeck
2019-12-04 13:51 ` Guenter Roeck
2019-12-04 13:51 ` Guenter Roeck
2019-12-04 13:58 ` Vincenzo Frascino
2019-12-04 13:58 ` Vincenzo Frascino
2019-12-04 13:58 ` Vincenzo Frascino
2019-12-04 16:16 ` Guenter Roeck
2019-12-04 16:16 ` Guenter Roeck
2019-12-04 16:16 ` Guenter Roeck
2019-12-04 17:15 ` Vincenzo Frascino
2019-12-04 17:15 ` Vincenzo Frascino
2019-12-04 17:15 ` Vincenzo Frascino
2019-12-04 19:39 ` Guenter Roeck
2019-12-04 19:39 ` Guenter Roeck
2019-12-04 19:39 ` Guenter Roeck
2019-12-05 9:42 ` Philippe Mathieu-Daudé
2019-12-05 9:42 ` Philippe Mathieu-Daudé
2019-12-05 9:42 ` Philippe Mathieu-Daudé
2019-12-05 10:00 ` Vincenzo Frascino
2019-12-05 10:00 ` Vincenzo Frascino
2019-12-05 11:02 ` Arnd Bergmann
2019-12-05 11:02 ` Arnd Bergmann
2019-12-05 11:02 ` Arnd Bergmann
2019-12-05 14:56 ` Philippe Mathieu-Daudé
2019-12-05 14:56 ` Philippe Mathieu-Daudé
2019-12-05 14:56 ` Philippe Mathieu-Daudé
2019-12-05 14:56 ` Philippe Mathieu-Daudé
2019-06-21 9:52 ` [PATCH v7 17/25] arm: Add clock_getres entry point Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 18/25] arm: Add clock_gettime64 " Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 19/25] mips: Add support for generic vDSO Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-07-26 5:15 ` Paul Burton
2019-07-26 5:15 ` Paul Burton
2019-07-26 5:15 ` Paul Burton
2019-07-26 5:15 ` Paul Burton
2019-07-26 16:29 ` [PATCH 0/2] mips: vdso: Fix Makefile Vincenzo Frascino
2019-07-26 16:29 ` Vincenzo Frascino
2019-07-26 16:29 ` [PATCH 1/2] mips: vdso: Fix source path Vincenzo Frascino
2019-07-26 16:29 ` Vincenzo Frascino
2019-07-26 16:29 ` [PATCH 2/2] mips: vdso: Fix flip/flop vdso building bug Vincenzo Frascino
2019-07-26 16:29 ` Vincenzo Frascino
2019-07-28 22:20 ` [PATCH 0/2] mips: vdso: Fix Makefile Paul Burton
2019-07-28 22:20 ` Paul Burton
2019-07-28 22:20 ` Paul Burton
2019-07-28 22:20 ` Paul Burton
2019-06-21 9:52 ` [PATCH v7 20/25] mips: Add clock_getres entry point Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-07-26 5:15 ` Paul Burton
2019-07-26 5:15 ` Paul Burton
2019-07-26 5:15 ` Paul Burton
2019-07-26 5:15 ` Paul Burton
2019-06-21 9:52 ` [PATCH v7 21/25] mips: Add clock_gettime64 " Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-07-26 5:15 ` Paul Burton
2019-07-26 5:15 ` Paul Burton
2019-07-26 5:15 ` Paul Burton
2019-07-26 5:15 ` Paul Burton
2019-06-21 9:52 ` [PATCH v7 22/25] x86: Add support for generic vDSO Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:55 ` [tip:timers/vdso] x86/vdso: Switch to generic vDSO implementation tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 23/25] x86: Add clock_getres entry point Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:56 ` [tip:timers/vdso] x86/vdso: Add clock_getres() " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 24/25] x86: Add clock_gettime64 " Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-23 23:56 ` [tip:timers/vdso] x86/vdso: Add clock_gettime64() " tip-bot for Vincenzo Frascino
2019-06-21 9:52 ` [PATCH v7 25/25] kselftest: Extend vDSO selftest Vincenzo Frascino
2019-06-21 9:52 ` Vincenzo Frascino
2019-06-24 0:34 ` [PATCH v7 00/25] Unify vDSOs across more architectures Thomas Gleixner
2019-06-24 0:34 ` Thomas Gleixner
2019-06-24 0:34 ` Thomas Gleixner
2019-06-24 1:15 ` Andy Lutomirski
2019-06-24 1:15 ` Andy Lutomirski
2019-06-24 1:15 ` Andy Lutomirski
2019-06-24 1:15 ` Andy Lutomirski
2019-06-24 7:42 ` Thomas Gleixner
2019-06-24 7:42 ` Thomas Gleixner
2019-06-24 7:42 ` Thomas Gleixner
2019-06-24 7:42 ` Thomas Gleixner
2019-06-24 13:21 ` Vincenzo Frascino
2019-06-24 13:21 ` Vincenzo Frascino
2019-06-24 13:21 ` Vincenzo Frascino
2019-06-24 14:18 ` Thomas Gleixner
2019-06-24 14:18 ` Thomas Gleixner
2019-06-24 14:18 ` Thomas Gleixner
2019-06-24 14:23 ` Russell King - ARM Linux admin
2019-06-24 14:23 ` Russell King - ARM Linux admin
2019-06-24 14:23 ` Russell King - ARM Linux admin
2019-06-24 14:49 ` Catalin Marinas
2019-06-24 14:49 ` Catalin Marinas
2019-06-24 14:49 ` Catalin Marinas
2019-06-24 16:20 ` Vincenzo Frascino
2019-06-24 16:20 ` Vincenzo Frascino
2019-06-24 16:20 ` Vincenzo Frascino
2019-10-25 11:42 ` Geert Uytterhoeven
2019-10-25 11:42 ` Geert Uytterhoeven
2019-10-25 11:42 ` Geert Uytterhoeven
2019-10-25 11:42 ` Geert Uytterhoeven
2019-06-24 18:41 ` Paul Burton
2019-06-24 18:41 ` Paul Burton
2019-06-24 18:41 ` Paul Burton
2019-06-24 23:16 ` Vincenzo Frascino
2019-06-24 23:16 ` Vincenzo Frascino
2019-06-24 23:16 ` Vincenzo Frascino
2019-06-24 23:16 ` Vincenzo Frascino
2019-06-25 17:11 ` Paul Burton
2019-06-25 17:11 ` Paul Burton
2019-06-25 17:11 ` Paul Burton
2019-06-25 17:17 ` Vincenzo Frascino
2019-06-25 17:17 ` Vincenzo Frascino
2019-06-25 17:17 ` Vincenzo Frascino
2019-06-25 7:51 ` [tip:timers/vdso] MAINTAINERS: Add entry for the generic VDSO library tip-bot for Thomas Gleixner
2019-06-26 12:36 ` tip-bot for Thomas Gleixner
2019-06-26 15:41 ` Joe Perches
2019-06-26 15:41 ` Joe Perches
2019-06-26 16:31 ` Andy Lutomirski
2019-06-26 16:31 ` Andy Lutomirski
2019-06-26 16:38 ` Thomas Gleixner
2019-06-26 16:38 ` Thomas Gleixner
2019-06-24 12:50 ` [PATCH v7 00/25] Unify vDSOs across more architectures Andre Przywara
2019-06-24 12:50 ` Andre Przywara
2019-06-24 12:50 ` Andre Przywara
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