From: suravee.suthikulpanit@amd.com (Suravee Suthikulanit)
To: linux-arm-kernel@lists.infradead.org
Subject: [V4 PATCH 2/6] arm64 : Introduce support for ACPI _CCA object
Date: Wed, 20 May 2015 06:51:34 -0500 [thread overview]
Message-ID: <555C7546.4040601@amd.com> (raw)
In-Reply-To: <20150520100304.GE25313@e104818-lin.cambridge.arm.com>
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
next prev parent reply other threads:[~2015-05-20 11:51 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-15 21:23 [V4 PATCH 0/6] ACPI: Introduce support for _CCA object Suravee Suthikulpanit
2015-05-15 21:23 ` [V4 PATCH 1/6] ACPI / scan: Parse _CCA and setup device coherency Suravee Suthikulpanit
2015-05-15 23:53 ` Rafael J. Wysocki
2015-05-18 22:38 ` Suravee Suthikulanit
2015-05-19 0:28 ` Rafael J. Wysocki
2015-05-20 10:01 ` Catalin Marinas
2015-05-20 11:52 ` Suravee Suthikulanit
2015-05-20 12:04 ` [Linaro-acpi] " Arnd Bergmann
2015-05-21 13:01 ` Catalin Marinas
2015-05-21 13:24 ` Arnd Bergmann
2015-05-15 21:23 ` [V4 PATCH 2/6] arm64 : Introduce support for ACPI _CCA object Suravee Suthikulpanit
2015-05-16 11:48 ` Paul Bolle
2015-05-16 16:50 ` Suravee Suthikulpanit
2015-05-20 10:03 ` Catalin Marinas
2015-05-20 11:51 ` Suravee Suthikulanit [this message]
2015-05-15 21:23 ` [V4 PATCH 3/6] pci: Generic function for setting up PCI device DMA coherency Suravee Suthikulpanit
2015-05-15 23:59 ` Rafael J. Wysocki
2015-05-16 15:12 ` Suthikulpanit, Suravee
2015-05-20 9:24 ` Catalin Marinas
2015-05-20 9:27 ` Arnd Bergmann
2015-05-20 9:34 ` Catalin Marinas
2015-05-20 12:00 ` Suravee Suthikulanit
2015-05-20 12:02 ` [Linaro-acpi] " Arnd Bergmann
2015-05-20 20:46 ` Russell King - ARM Linux
2015-05-20 9:31 ` Catalin Marinas
2015-05-16 12:41 ` Bjorn Helgaas
2015-05-16 15:14 ` Suthikulpanit, Suravee
2015-05-15 21:23 ` [V4 PATCH 4/6] device property: Introduces device_dma_is_coherent() Suravee Suthikulpanit
2015-05-20 10:28 ` Will Deacon
2015-05-20 21:32 ` Suravee Suthikulanit
2015-05-15 21:23 ` [V4 PATCH 5/6] crypto: ccp - Unify coherency checking logic with device_dma_is_coherent() Suravee Suthikulpanit
2015-05-15 21:23 ` [V4 PATCH 6/6] amd-xgbe: " Suravee Suthikulpanit
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