From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Fri, 26 Feb 2010 21:49:08 +0000 Subject: USB mass storage and ARM cache coherency In-Reply-To: <1267220429.23523.1811.camel@pasglop> References: <1266979632.23523.1668.camel@pasglop> <1267201521.14703.50.camel@e102109-lin.cambridge.arm.com> <1267220429.23523.1811.camel@pasglop> Message-ID: <20100226214908.GD23933@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Sat, Feb 27, 2010 at 08:40:29AM +1100, Benjamin Herrenschmidt wrote: > Hrm, the DMA API certainly doesn't handle the I$/D$ coherency on > powerpc.. I'm afraid that whole cache handling stuff is totally > inconsistent since different archs have different expectations here. It doesn't on ARM either.