From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sudeep Holla Subject: Re: [PATCH v7 00/13] Support PPTT for ARM64 Date: Thu, 1 Mar 2018 12:06:15 +0000 Message-ID: <8b5bfd7e-57ea-bb34-85f8-69007a3847e6@arm.com> References: <20180228220619.6992-1-jeremy.linton@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20180228220619.6992-1-jeremy.linton@arm.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Jeremy Linton , linux-acpi@vger.kernel.org Cc: Sudeep Holla , linux-arm-kernel@lists.infradead.org, lorenzo.pieralisi@arm.com, hanjun.guo@linaro.org, rjw@rjwysocki.net, will.deacon@arm.com, catalin.marinas@arm.com, gregkh@linuxfoundation.org, mark.rutland@arm.com, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, wangxiongfeng2@huawei.com, vkilari@codeaurora.org, ahs3@redhat.com, dietmar.eggemann@arm.com, morten.rasmussen@arm.com, palmer@sifive.com, lenb@kernel.org, john.garry@huawei.com, austinwc@codeaurora.org, tnowicki@caviumnetworks.com List-Id: linux-acpi@vger.kernel.org Hi Jeremy, On 28/02/18 22:06, Jeremy Linton wrote: > ACPI 6.2 adds the Processor Properties Topology Table (PPTT), which is > used to describe the processor and cache topology. Ideally it is > used to extend/override information provided by the hardware, but > right now ARM64 is entirely dependent on firmware provided tables. > > This patch parses the table for the cache topology and CPU topology. > When we enable ACPI/PPTT for arm64 we map the physical_id to the > PPTT node flagged as the physical package by the firmware. > This results in topologies that match what the remainder of the > system expects. To avoid inverted scheduler domains we then > set the MC domain equal to the largest cache within the socket > below the NUMA domain. > I remember reviewing and acknowledging most of the cacheinfo stuff with couple of minor suggestions for v6. I don't see any Acked-by tags in this series and don't know if I need to review/ack any more cacheinfo related patches. -- Regards, Sudeep