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 <msal...@redhat.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpa...@amd.com>
CC: Catalin Marinas <catalin.mari...@arm.com>
CC: Will Deacon <will.dea...@arm.com>
CC: Arnd Bergmann <a...@arndb.de>
Acked-by: Catalin Marinas <catalin.mari...@arm.com>
Thanks,
Suravee
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