Re: [V5 PATCH 2/5] arm64 : Introduce support for ACPI _CCA object

2015-06-03 Thread Suravee Suthikulanit
On 5/28/2015 9:38 PM, Mark Salter wrote: On Wed, 2015-05-20 at 17:09 -0500, Suravee Suthikulpanit wrote: Fromhttp://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.

Re: [V5 PATCH 2/5] arm64 : Introduce support for ACPI _CCA object

2015-06-03 Thread Mark Salter
On Wed, 2015-06-03 at 09:37 -0500, Suravee Suthikulanit wrote: On 5/28/2015 9:38 PM, Mark Salter wrote: On Wed, 2015-05-20 at 17:09 -0500, Suravee Suthikulpanit wrote: Fromhttp://www.uefi.org/sites/default/files/resources/ACPI_6.0.pdf, section 6.2.17 _CCA states that ARM platforms require

Re: [V5 PATCH 2/5] arm64 : Introduce support for ACPI _CCA object

2015-05-28 Thread Mark Salter
On Wed, 2015-05-20 at 17:09 -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. Therefore, this patch specifies

[V5 PATCH 2/5] arm64 : Introduce support for ACPI _CCA object

2015-05-20 Thread Suravee Suthikulpanit
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. Therefore, this patch specifies ACPI_CCA_REQUIRED in arm64 Kconfig. In addition, to handle the case when _CCA is