From mboxrd@z Thu Jan 1 00:00:00 1970 From: jamie@jamieiles.com (Jamie Iles) Date: Tue, 5 Jan 2010 19:08:05 +0000 Subject: [PATCH 3/5] arm: use the spinlocked, generic atomic64 support In-Reply-To: <20100105185732.GF14376@shareable.org> References: <1262602122-10373-1-git-send-email-jamie.iles@picochip.com> <1262602122-10373-2-git-send-email-jamie.iles@picochip.com> <1262602122-10373-3-git-send-email-jamie.iles@picochip.com> <1262602122-10373-4-git-send-email-jamie.iles@picochip.com> <20100105185732.GF14376@shareable.org> Message-ID: <20100105190805.GJ4179@wear.picochip.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Jan 05, 2010 at 06:57:32PM +0000, Jamie Lokier wrote: > Jamie Iles wrote: > > perf events require that we can support atomic64's. There is a generic, > > spinlocked version that we can use until we have proper hardware > > support. > > Is that simply waiting for LDREXD/STREXD-based atomic64's, or is it > depending on something subtler? Yes, Will Deacon submitted a patch last month that does this but afaik it hasn't been merged in yet. Jamie