Re: [V4 PATCH 2/6] arm64 : Introduce support for ACPI _CCA object

[Suravee Suthikulanit]

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@xxxxxxxxxx>
> > Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx>
> > CC: Catalin Marinas <catalin.marinas@xxxxxxx>
> > CC: Will Deacon <will.deacon@xxxxxxx>
> > CC: Arnd Bergmann <arnd@xxxxxxxx>
>
> Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>

Thanks,

Suravee

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/