From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e23smtp06.au.ibm.com ([202.81.31.148]:56673 "EHLO e23smtp06.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750977AbbEDHJu (ORCPT ); Mon, 4 May 2015 03:09:50 -0400 Received: from /spool/local by e23smtp06.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 4 May 2015 17:09:47 +1000 Received: from d23relay08.au.ibm.com (d23relay08.au.ibm.com [9.185.71.33]) by d23dlp03.au.ibm.com (Postfix) with ESMTP id D147B357804F for ; Mon, 4 May 2015 17:09:45 +1000 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay08.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id t4479bbg20447378 for ; Mon, 4 May 2015 17:09:45 +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 t4479CNT000583 for ; Mon, 4 May 2015 17:09:13 +1000 From: Wei Yang To: gwshan@linux.vnet.ibm.com, bhelgaas@google.com Cc: linuxppc-dev@lists.ozlabs.org, linux-pci@vger.kernel.org, Wei Yang Subject: [PATCH V3 4/9] powerpc/eeh: cache address range just for normal device Date: Mon, 4 May 2015 15:07:33 +0800 Message-Id: <1430723258-21299-5-git-send-email-weiyang@linux.vnet.ibm.com> In-Reply-To: <1430723258-21299-1-git-send-email-weiyang@linux.vnet.ibm.com> References: <1430723258-21299-1-git-send-email-weiyang@linux.vnet.ibm.com> Sender: linux-pci-owner@vger.kernel.org List-ID: The address cache is used to find the related eeh_dev for a given MMIO address. From the definition of pci_dev.resource[], it keeps MMIO address in following order: 6 normal BAR, ROM BAR, 6 IOV BAR, 4 Bridge window. In the address cache, first it doesn't cache bridge device, second the IOV BAR range should map to their own VFs separately. This means it just need to cache the first 7 BARs for a normal device. This patch restricts the address cache to save the first 7 BARs for a pci device. Signed-off-by: Wei Yang Acked-by: Gavin Shan --- arch/powerpc/kernel/eeh_cache.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/eeh_cache.c b/arch/powerpc/kernel/eeh_cache.c index a1e86e1..f0ce2a3 100644 --- a/arch/powerpc/kernel/eeh_cache.c +++ b/arch/powerpc/kernel/eeh_cache.c @@ -196,7 +196,7 @@ static void __eeh_addr_cache_insert_dev(struct pci_dev *dev) } /* Walk resources on this device, poke them into the tree */ - for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { + for (i = 0; i <= PCI_ROM_RESOURCE; i++) { resource_size_t start = pci_resource_start(dev,i); resource_size_t end = pci_resource_end(dev,i); unsigned long flags = pci_resource_flags(dev,i); -- 1.7.9.5