From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey Kardashevskiy Subject: Re: [PATCH v7 25/50] powerpc/powernv: Reserve PE for root bus Date: Thu, 19 Nov 2015 11:21:48 +1100 Message-ID: <564D161C.3020603@ozlabs.ru> References: <1446642770-4681-1-git-send-email-gwshan@linux.vnet.ibm.com> <1446642770-4681-26-git-send-email-gwshan@linux.vnet.ibm.com> <564AC37A.2060701@ozlabs.ru> <20151117090653.GA20134@gwshan> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20151117090653.GA20134@gwshan> Sender: linux-pci-owner@vger.kernel.org To: Gavin Shan Cc: linuxppc-dev@lists.ozlabs.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, benh@kernel.crashing.org, mpe@ellerman.id.au, bhelgaas@google.com, grant.likely@linaro.org, robherring2@gmail.com, panto@antoniou-consulting.com, frowand.list@gmail.com List-Id: devicetree@vger.kernel.org On 11/17/2015 08:06 PM, Gavin Shan wrote: > On Tue, Nov 17, 2015 at 05:04:42PM +1100, Alexey Kardashevskiy wrote: >> On 11/05/2015 12:12 AM, Gavin Shan wrote: >>> We're going to reserve/assign PEs when pcibios_setup_bridge() is >>> called. The function won't be called for root bus as it doesn't >>> have parent bridge. However, the root bus still needs a PE to be >>> covered. >>> >>> This reserves PE numbers that are adjacent to the reserved one >>> for root buses. >> >> >> Somewhere in the patchset you need to describe why you need a separate PE for >> a root bus and why reserved_pe_idx is not enough for this. >> > > Please confirm if it's fine to add the descrption in this patch's chagelog. Yes, it is fine. Thanks! -- Alexey