Messages in this thread | | | Date | Wed, 20 May 2015 06:51:34 -0500 | From | Suravee Suthikulanit <> | Subject | Re: [V4 PATCH 2/6] arm64 : Introduce support for ACPI _CCA object |
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On 5/20/2015 5:03 AM, Catalin Marinas wrote: > 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@redhat.com> >> Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> >> CC: Catalin Marinas <catalin.marinas@arm.com> >> CC: Will Deacon <will.deacon@arm.com> >> CC: Arnd Bergmann <arnd@arndb.de> > > Acked-by: Catalin Marinas <catalin.marinas@arm.com> >
Thanks,
Suravee
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