From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e23smtp03.au.ibm.com (e23smtp03.au.ibm.com [202.81.31.145]) (using TLSv1.2 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3r9z0G57mXzDqDv for ; Fri, 20 May 2016 16:43:10 +1000 (AEST) Received: from localhost by e23smtp03.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 20 May 2016 16:43:10 +1000 Received: from d23relay09.au.ibm.com (d23relay09.au.ibm.com [9.185.63.181]) by d23dlp03.au.ibm.com (Postfix) with ESMTP id 684C1357805E for ; Fri, 20 May 2016 16:43:07 +1000 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay09.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u4K6gxlh63569994 for ; Fri, 20 May 2016 16:43:07 +1000 Received: from d23av01.au.ibm.com (localhost [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u4K6gYng025791 for ; Fri, 20 May 2016 16:42:35 +1000 From: Gavin Shan To: linuxppc-dev@lists.ozlabs.org Cc: linux-pci@vger.kernel.org, benh@kernel.crashing.org, mpe@ellerman.id.au, alistair@popple.id.au, aik@ozlabs.ru, Gavin Shan Subject: [PATCH v10 12/18] powerpc/pci: Update bridge windows on PCI plug Date: Fri, 20 May 2016 16:41:36 +1000 Message-Id: <1463726502-14679-13-git-send-email-gwshan@linux.vnet.ibm.com> In-Reply-To: <1463726502-14679-1-git-send-email-gwshan@linux.vnet.ibm.com> References: <1463726502-14679-1-git-send-email-gwshan@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On the PCI plugging event, PCI slot's subordinate devices are scanned and their (IO and MMIO) resources are assigned. Platform dependent resources (PE#, IO/MMIO/DMA windows) are allocated or created on updating windows of the slot's upstream bridge. This updates the windows of the hot plugged slot's upstream bridge in pcibios_finish_adding_to_bus() so that the platform resources (PE#, IO/MMIO/DMA segments) are allocated or created accordingly. Signed-off-by: Gavin Shan Reviewed-by: Alexey Kardashevskiy --- arch/powerpc/kernel/pci-common.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 40df3a5..be9e515 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1444,8 +1444,12 @@ void pcibios_finish_adding_to_bus(struct pci_bus *bus) /* Allocate bus and devices resources */ pcibios_allocate_bus_resources(bus); pcibios_claim_one_bus(bus); - if (!pci_has_flag(PCI_PROBE_ONLY)) - pci_assign_unassigned_bus_resources(bus); + if (!pci_has_flag(PCI_PROBE_ONLY)) { + if (bus->self) + pci_assign_unassigned_bridge_resources(bus->self); + else + pci_assign_unassigned_bus_resources(bus); + } /* Fixup EEH */ eeh_add_device_tree_late(bus); -- 2.1.0