From: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
To: <rjw@rjwysocki.net>, <lenb@kernel.org>, <catalin.marinas@arm.com>,
<will.deacon@arm.com>
Cc: <msalter@redhat.com>, <hanjun.guo@linaro.org>,
<al.stone@linaro.org>, <grant.likely@linaro.org>, <arnd@arndb.de>,
<leo.duran@amd.com>, <linux-arm-kernel@lists.infradead.org>,
<linux-acpi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linaro-acpi@lists.linaro.org>,
"Suravee Suthikulpanit" <Suravee.Suthikulpanit@amd.com>
Subject: [PATCH 0/2] ACPI : Introduce support for _CCA object
Date: Wed, 29 Apr 2015 08:44:07 -0500 [thread overview]
Message-ID: <1430315049-4663-1-git-send-email-Suravee.Suthikulpanit@amd.com> (raw)
This patch series introduce support for _CCA object, which is currently
used mainly by ARM64 platform to specify DMA coherency attribute for
devices when booting with ACPI.
A copy of ACPIv6 can be found here:
http://www.uefi.org/sites/default/files/resources/ACPI_6.0.pdf
This has been tested on AMD-Seattle platform, which implements _CCA
object as described in the AMD Opteron A1100 Series Processor ACPI Porting Guide:
http://amd-dev.wpengine.netdna-cdn.com/wordpress/media/2012/10/Seattle_ACPI_Guide.pdf
Changes From RFC: (https://lkml.org/lkml/2015/4/1/389)
* New logic for deriving and propagating coherent attribute from
parent devices. (by Mark)
* Introducing acpi_dma_is_coherent() API (Per Tom suggestion)
* Introducing CONFIG_ACPI_MUST_HAVE_CCA kernel configuration.
* Rebased to linux-4.1-rc1
Suravee Suthikulpanit (2):
arm/arm64: ACPI: Introduce CONFIG_ACPI_MUST_HAVE_CCA
ACPI / scan: Parse _CCA and setup device coherency
arch/arm/Kconfig | 1 +
arch/arm64/Kconfig | 1 +
drivers/acpi/Kconfig | 3 +++
drivers/acpi/acpi_platform.c | 5 ++++-
drivers/acpi/scan.c | 45 ++++++++++++++++++++++++++++++++++++++++++++
include/acpi/acpi_bus.h | 9 ++++++++-
6 files changed, 62 insertions(+), 2 deletions(-)
--
2.1.0
next reply other threads:[~2015-04-29 13:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-29 13:44 Suravee Suthikulpanit [this message]
2015-04-29 13:44 ` [PATCH 1/2] arm/arm64: ACPI: Introduce CONFIG_ACPI_MUST_HAVE_CCA Suravee Suthikulpanit
2015-04-29 14:04 ` Catalin Marinas
2015-04-29 14:31 ` Suravee Suthikulpanit
2015-04-29 14:42 ` Catalin Marinas
2015-04-29 14:44 ` Suravee Suthikulpanit
2015-04-30 13:47 ` Hanjun Guo
2015-04-30 13:50 ` Will Deacon
2015-04-30 14:14 ` Hanjun Guo
2015-04-30 15:01 ` Lorenzo Pieralisi
2015-04-29 13:44 ` [PATCH 2/2] ACPI / scan: Parse _CCA and setup device coherency Suravee Suthikulpanit
2015-04-29 14:03 ` Arnd Bergmann
2015-04-29 14:45 ` Suravee Suthikulpanit
2015-04-29 14:47 ` [Linaro-acpi] " Arnd Bergmann
2015-04-29 14:57 ` Suthikulpanit, Suravee
2015-04-29 15:39 ` Al Stone
2015-04-29 16:15 ` Arnd Bergmann
2015-04-29 15:54 ` Arnd Bergmann
2015-05-01 11:06 ` Catalin Marinas
2015-05-08 14:08 ` Arnd Bergmann
2015-05-11 17:10 ` Catalin Marinas
2015-05-11 17:24 ` Robin Murphy
2015-04-29 16:25 ` Arnd Bergmann
2015-04-29 21:53 ` Suravee Suthikulpanit
2015-04-30 8:23 ` [Linaro-acpi] " Arnd Bergmann
2015-04-30 10:41 ` Will Deacon
2015-04-30 10:47 ` Arnd Bergmann
2015-04-30 11:07 ` Will Deacon
2015-04-30 11:24 ` Arnd Bergmann
2015-04-30 11:46 ` Will Deacon
2015-04-30 13:03 ` Arnd Bergmann
2015-04-30 13:13 ` Will Deacon
2015-04-30 13:52 ` Arnd Bergmann
2015-04-30 15:55 ` Catalin Marinas
2015-05-08 14:01 ` Arnd Bergmann
2015-04-30 23:39 ` Suravee Suthikulanit
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