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From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2 07/11] arm: arch_timer: divorce from local_timer api
Date: Fri, 11 Jan 2013 16:46:35 +0000	[thread overview]
Message-ID: <20130111164635.GA1794@arm.com> (raw)
In-Reply-To: <50F014DF.7090205@ti.com>

On Fri, Jan 11, 2013 at 01:34:23PM +0000, Santosh Shilimkar wrote:
> On Wednesday 09 January 2013 09:37 PM, Mark Rutland wrote:
> > Currently, the arch_timer driver is tied to the arm port, as it relies
> > on code in arch/arm/smp.c to setup and teardown timers as cores are
> > hotplugged on and off. The timer is registered through an arm-specific
> > registration mechanism, preventing sharing the driver with the arm64
> > port.
> >
> > This patch moves the driver to using a cpu notifier instead, making it
> > easier to port.
> >
> > Signed-off-by: Mark Rutland <mark.rutland@arm.com>
> > Acked-by: Catalin Marinas <catalin.marinas@arm.com>
> > Acked-by: Marc Zyngier <marc.zyngier@arm.com>
> > ---
> This is really a nit idea. I think we should do the same
> for ARM gic code.

I plan to do the same once Rob's GIC patches get merged. In my
soc-armv8-model branch I have a copy of gic.c into drivers/irqchip and
the CPU interface is done automatically via a notifier. The only trick
is to set the priority of the GIC notifier higher than the timer one.

-- 
Catalin

  reply	other threads:[~2013-01-11 16:46 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-09 16:07 [PATCHv3 00/11] Unify arm_generic and arch_timer drivers Mark Rutland
2013-01-09 16:07 ` [PATCHv2 01/11] arm: arch_timer: balance device_node refcounting Mark Rutland
2013-01-11 12:59   ` Santosh Shilimkar
2013-01-09 16:07 ` [PATCHv2 02/11] arm: arch_timer: remove redundant available check Mark Rutland
2013-01-11 13:11   ` Santosh Shilimkar
2013-01-11 14:07     ` Mark Rutland
2013-01-09 16:07 ` [PATCHv2 03/11] arm: arch_timer: use u64/u32 for register data Mark Rutland
2013-01-11 13:19   ` Santosh Shilimkar
2013-01-09 16:07 ` [PATCHv2 04/11] arm: arch_timer: standardise counter reading Mark Rutland
2013-01-11 13:23   ` Santosh Shilimkar
2013-01-15 10:25     ` Mark Rutland
2013-01-15 10:38       ` Santosh Shilimkar
2013-01-09 16:07 ` [PATCHv2 05/11] arm: arch_timer: split cntfrq accessor Mark Rutland
2013-01-11 13:27   ` Santosh Shilimkar
2013-01-11 14:16     ` Mark Rutland
2013-01-09 16:07 ` [PATCHv2 06/11] arm: arch_timer: factor out register accessors Mark Rutland
2013-01-11 13:32   ` Santosh Shilimkar
2013-01-11 14:31     ` Mark Rutland
2013-01-09 16:07 ` [PATCHv2 07/11] arm: arch_timer: divorce from local_timer api Mark Rutland
2013-01-11 13:34   ` Santosh Shilimkar
2013-01-11 16:46     ` Catalin Marinas [this message]
2013-01-11 16:56       ` Santosh Shilimkar
2013-01-09 16:07 ` [PATCHv2 08/11] arm: arch_timer: add arch_counter_set_user_access Mark Rutland
2013-01-11 13:40   ` Santosh Shilimkar
2013-01-11 14:54     ` Mark Rutland
2013-01-11 15:07       ` Will Deacon
2013-01-11 17:00         ` Santosh Shilimkar
2013-01-11 16:50     ` Catalin Marinas
2013-01-11 16:57       ` Santosh Shilimkar
2013-01-11 17:54       ` Mark Rutland
2013-01-09 16:07 ` [PATCHv2 09/11] arm: arch_timer: move core to drivers/clocksource Mark Rutland
2013-01-11 13:48   ` Santosh Shilimkar
2013-01-11 15:04     ` Mark Rutland
2013-01-09 16:07 ` [PATCHv2 10/11] arm64: move from arm_generic to arm_arch_timer Mark Rutland
2013-01-11 13:50   ` Santosh Shilimkar
2013-01-09 16:07 ` [PATCHv2 11/11] Documentation: Add ARMv8 to arch_timer devicetree Mark Rutland
2013-01-11 13:52   ` Santosh Shilimkar
  -- strict thread matches above, loose matches on Subject: below --
2012-12-19 15:10 [PATCHv2 00/11] Unify arm_generic and arch_timer drivers Mark Rutland
2012-12-19 15:11 ` [PATCHv2 07/11] arm: arch_timer: divorce from local_timer api Mark Rutland

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