From: vinod.koul@intel.com (Vinod Koul)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/7] dmaengine: at_xdmac: prefer usage of readl/writel_relaxed
Date: Thu, 13 Nov 2014 21:04:49 +0530 [thread overview]
Message-ID: <20141113153449.GO24582@intel.com> (raw)
In-Reply-To: <2791155.z0l2TZezWO@wuerfel>
On Thu, Nov 13, 2014 at 12:01:49PM +0100, Arnd Bergmann wrote:
> On Thursday 13 November 2014 11:52:39 Ludovic Desroches wrote:
> > _relaxed version of readl and writel are not implemented on all
> > architecture so COMPILE_TEST has to be removed in order to not cause
> > some build failures.
> >
> > Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
> > ---
> >
>
> I've queued up Will Deacon's series to enable the relaxed accessors
> on all architectures, so the Kconfig change should no longer
> be required in 3.19.
And why is _relaxed() version required for thsi driver. Why cant readl(),
writel() with barriers do?
--
~Vinod
WARNING: multiple messages have this Message-ID (diff)
From: Vinod Koul <vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Ludovic Desroches
<ludovic.desroches-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>,
dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
cyrille.pitchen-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org,
nicolas.ferre-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org
Subject: Re: [PATCH 1/7] dmaengine: at_xdmac: prefer usage of readl/writel_relaxed
Date: Thu, 13 Nov 2014 21:04:49 +0530 [thread overview]
Message-ID: <20141113153449.GO24582@intel.com> (raw)
In-Reply-To: <2791155.z0l2TZezWO@wuerfel>
On Thu, Nov 13, 2014 at 12:01:49PM +0100, Arnd Bergmann wrote:
> On Thursday 13 November 2014 11:52:39 Ludovic Desroches wrote:
> > _relaxed version of readl and writel are not implemented on all
> > architecture so COMPILE_TEST has to be removed in order to not cause
> > some build failures.
> >
> > Signed-off-by: Ludovic Desroches <ludovic.desroches-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
> > ---
> >
>
> I've queued up Will Deacon's series to enable the relaxed accessors
> on all architectures, so the Kconfig change should no longer
> be required in 3.19.
And why is _relaxed() version required for thsi driver. Why cant readl(),
writel() with barriers do?
--
~Vinod
--
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next prev parent reply other threads:[~2014-11-13 15:34 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-13 10:52 [PATCH 0/7] fixes and update for at_xdmac Ludovic Desroches
2014-11-13 10:52 ` Ludovic Desroches
2014-11-13 10:52 ` [PATCH 1/7] dmaengine: at_xdmac: prefer usage of readl/writel_relaxed Ludovic Desroches
2014-11-13 10:52 ` Ludovic Desroches
2014-11-13 11:01 ` Arnd Bergmann
2014-11-13 11:01 ` Arnd Bergmann
2014-11-13 14:21 ` Ludovic Desroches
2014-11-13 14:21 ` Ludovic Desroches
2014-11-13 15:34 ` Vinod Koul [this message]
2014-11-13 15:34 ` Vinod Koul
2014-11-13 15:45 ` Ludovic Desroches
2014-11-13 15:45 ` Ludovic Desroches
2014-11-17 8:34 ` Vinod Koul
2014-11-17 8:34 ` Vinod Koul
2014-11-13 10:52 ` [PATCH 2/7] dmaengine: at_xdmac: remove chancnt affectation Ludovic Desroches
2014-11-13 10:52 ` Ludovic Desroches
2014-11-13 10:52 ` [PATCH 3/7] dmaengine: at_xdmac: fix software lockup at_xdmac_tx_status() Ludovic Desroches
2014-11-13 10:52 ` Ludovic Desroches
2014-11-13 10:52 ` [PATCH 4/7] dmaengine: at_xdmac: fix a bug in transfer residue computation Ludovic Desroches
2014-11-13 10:52 ` Ludovic Desroches
2014-11-13 10:52 ` [PATCH 5/7] dmaengine: at_xdmac: fix missing spin_unlock Ludovic Desroches
2014-11-13 10:52 ` Ludovic Desroches
2014-11-17 8:31 ` Vinod Koul
2014-11-17 8:31 ` Vinod Koul
2014-11-13 10:52 ` [PATCH 6/7] ARM: dts: at_xdmac: fix bad value of dma-cells in documentation Ludovic Desroches
2014-11-13 10:52 ` Ludovic Desroches
2014-11-13 10:52 ` [PATCH 7/7] dmaengine: at_xdmac: Add DMA_PRIVATE Ludovic Desroches
2014-11-13 10:52 ` Ludovic Desroches
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