From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/5] spi: pl022: use generic DMA slave configuration if possible
Date: Fri, 08 Feb 2013 17:28:29 +0100 [thread overview]
Message-ID: <11938235.WbhQmuClDR@wuerfel> (raw)
In-Reply-To: <20130208162248.GY17833@n2100.arm.linux.org.uk>
On Friday 08 February 2013 16:22:48 Russell King - ARM Linux wrote:
> If it's DMA _to_ a device, then we will only ever clean the lines prior to
> a transfer, never invalidate them. So that's not really a concern. (There
> better not be any dirty cache lines associated with the empty zero page
> either.)
Right, makes sense. I thought I had read about a CPU that
could not flush a cache line without also invalidating
it, but that must have been something other than ARM,
or maybe I'm misremembering it.
Arnd
next prev parent reply other threads:[~2013-02-08 16:28 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1359395857-1235-1-git-send-email-arnd@arndb.de>
2013-01-28 21:58 ` [PATCH v2 0/5] dmaengine: convert dw_dmac/spear13xx to generic binding Arnd Bergmann
2013-01-28 21:58 ` [PATCH 1/5] dmaengine: dw_dmac: move to generic DMA binding Arnd Bergmann
2013-01-29 7:24 ` Viresh Kumar
2013-01-29 10:35 ` Arnd Bergmann
2013-01-29 10:49 ` Viresh Kumar
2013-01-29 10:54 ` Andy Shevchenko
2013-01-29 10:57 ` Viresh Kumar
2013-01-29 11:14 ` Andy Shevchenko
2013-01-29 13:31 ` Arnd Bergmann
2013-01-29 13:45 ` Andy Shevchenko
2013-01-29 14:26 ` Russell King - ARM Linux
2013-01-29 15:28 ` Arnd Bergmann
2013-01-29 15:17 ` Viresh Kumar
2013-01-29 16:21 ` Arnd Bergmann
2013-01-30 2:04 ` Viresh Kumar
2013-01-30 9:41 ` Arnd Bergmann
2013-01-30 9:48 ` Viresh Kumar
2013-01-30 10:08 ` Arnd Bergmann
2013-01-30 10:32 ` Viresh Kumar
[not found] ` <1359445171.31148.30.camel@smile>
2013-01-29 10:50 ` Arnd Bergmann
2013-01-29 11:18 ` Russell King - ARM Linux
2013-01-29 13:44 ` Arnd Bergmann
2013-01-29 14:24 ` Russell King - ARM Linux
2013-01-29 14:55 ` Arnd Bergmann
2013-01-29 15:44 ` Russell King - ARM Linux
2013-01-29 16:36 ` Arnd Bergmann
2013-01-29 17:45 ` Russell King - ARM Linux
2013-01-29 20:40 ` Arnd Bergmann
2013-01-29 21:59 ` Linus Walleij
2013-02-15 8:50 ` Andy Shevchenko
2013-02-15 11:17 ` Arnd Bergmann
2013-01-28 21:58 ` [PATCH 2/5] spi: pl022: use generic DMA slave configuration if possible Arnd Bergmann
2013-01-29 2:41 ` Mark Brown
2013-01-29 7:49 ` Andy Shevchenko
2013-01-29 13:13 ` Arnd Bergmann
2013-02-07 18:29 ` Linus Walleij
2013-02-07 19:42 ` Arnd Bergmann
2013-02-07 20:19 ` Linus Walleij
2013-02-07 21:15 ` Arnd Bergmann
2013-02-08 16:22 ` Russell King - ARM Linux
2013-02-08 16:28 ` Arnd Bergmann [this message]
2013-02-08 22:10 ` Linus Walleij
2013-02-08 16:20 ` Russell King - ARM Linux
2013-01-28 21:58 ` [PATCH 3/5] serial: pl011: " Arnd Bergmann
2013-01-30 4:38 ` Greg Kroah-Hartman
2013-01-28 21:58 ` [PATCH 4/5] ata: arasan: remove the need for platform_data Arnd Bergmann
2013-01-29 8:18 ` Viresh Kumar
2013-01-28 21:58 ` [PATCH 5/5] ARM: SPEAr13xx: Pass generic DW DMAC platform data from DT Arnd Bergmann
2013-01-29 8:16 ` Viresh Kumar
2013-01-29 13:21 ` Arnd Bergmann
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