From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nathan_Lynch@mentor.com (Nathan Lynch)
Date: Wed, 23 Apr 2014 12:41:03 -0500
Subject: [PATCH v6 2/6] ARM: allow user access to arch timer virtual
 counter
In-Reply-To: <20140423173244.GL5649@arm.com>
References: <cover.1398213562.git.nathan_lynch@mentor.com>
 <10ed3f4cfce13a80a9a3070934fc0e31619a1242.1398213562.git.nathan_lynch@mentor.com>
 <20140423173244.GL5649@arm.com>
Message-ID: <5357FB2F.8060002@mentor.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On 04/23/2014 12:32 PM, Will Deacon wrote:
> On Wed, Apr 23, 2014 at 01:48:53AM +0100, Nathan Lynch wrote:
>> As ARM64 does.  This is a necessary prerequisite for implementing
>> gettimeofday and clock_gettime in a vdso.
> 
> Doesn't this change make arch_counter_set_user_access identical for arm and
> arm64? In which case, we could move it into the driver itself.

True; I had considered this but wasn't sure how it could be staged.

Would a single patch updating arch/arm64, arch/arm, and
drivers/clocksource/arm_arch_timer.c be okay?