From: Paul Bolle Subject: Re: [V4 PATCH 2/6] arm64 : Introduce support for ACPI _CCA object Date: Sat, 16 May 2015 13:48:07 +0200 Message-ID: <1431776887.2341.17.camel@x220> References: <1431724994-21601-1-git-send-email-Suravee.Suthikulpanit@amd.com> <1431724994-21601-3-git-send-email-Suravee.Suthikulpanit@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: rjw@rjwysocki.net, lenb@kernel.org, catalin.marinas@arm.com, will.deacon@arm.com, bhelgaas@google.com, thomas.lendacky@amd.com, herbert@gondor.apana.org.au, davem@davemloft.net, arnd@arndb.de, msalter@redhat.com, hanjun.guo@linaro.org, al.stone@linaro.org, grant.likely@linaro.org, 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, netdev@vger.kernel.org, linux-crypto@vger.kernel.org To: Suravee Suthikulpanit Return-path: In-Reply-To: <1431724994-21601-3-git-send-email-Suravee.Suthikulpanit@amd.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org Just a nit regarding the commit explanation. On Fri, 2015-05-15 at 16:23 -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. s/ACPI_MUST_HAVE_CCA/ACPI_CCA_REQUIRED/. Ie, update the commit explanation to match the change introduced in V2. > In case _CCA is missing, arm64 would assign dummy_dma_ops > to disable DMA capability of the device. Thanks, Paul Bolle