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Date: Wed, 20 May 2015 11:03:04 +0100 From: Catalin Marinas <catalin.marinas@....com> To: Suravee Suthikulpanit <Suravee.Suthikulpanit@....com> Cc: rjw@...ysocki.net, lenb@...nel.org, will.deacon@....com, bhelgaas@...gle.com, thomas.lendacky@....com, herbert@...dor.apana.org.au, davem@...emloft.net, arnd@...db.de, al.stone@...aro.org, linaro-acpi@...ts.linaro.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org, leo.duran@....com, hanjun.guo@...aro.org, msalter@...hat.com, grant.likely@...aro.org, linux-arm-kernel@...ts.infradead.org, linux-crypto@...r.kernel.org Subject: Re: [V4 PATCH 2/6] arm64 : Introduce support for ACPI _CCA object On Fri, May 15, 2015 at 04:23:10PM -0500, Suravee Suthikulpanit wrote: > From http://www.uefi.org/sites/default/files/resources/ACPI_6.0.pdf, > section 6.2.17 _CCA states that ARM platforms require ACPI _CCA > object to be specified for DMA-cabpable devices. This patch introduces > ACPI_MUST_HAVE_CCA in arm64 Kconfig to specify such requirement. > > In case _CCA is missing, arm64 would assign dummy_dma_ops > to disable DMA capability of the device. > > Signed-off-by: Mark Salter <msalter@...hat.com> > Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@....com> > CC: Catalin Marinas <catalin.marinas@....com> > CC: Will Deacon <will.deacon@....com> > CC: Arnd Bergmann <arnd@...db.de> Acked-by: Catalin Marinas <catalin.marinas@....com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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