From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e23smtp06.au.ibm.com (e23smtp06.au.ibm.com [202.81.31.148]) (using TLSv1 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 753031A0D51 for ; Fri, 15 May 2015 23:39:37 +1000 (AEST) Received: from /spool/local by e23smtp06.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 15 May 2015 23:39:37 +1000 Received: from d23relay07.au.ibm.com (d23relay07.au.ibm.com [9.190.26.37]) by d23dlp01.au.ibm.com (Postfix) with ESMTP id A27592CE8040 for ; Fri, 15 May 2015 23:39:34 +1000 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay07.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id t4FDdQbB28442638 for ; Fri, 15 May 2015 23:39:34 +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 t4FDd1ns011068 for ; Fri, 15 May 2015 23:39:02 +1000 From: Wei Yang To: gwshan@linux.vnet.ibm.com, bhelgaas@google.com Subject: [PATCH V5 04/10] powerpc/eeh: cache address range just for normal device Date: Fri, 15 May 2015 21:36:58 +0800 Message-Id: <1431697024-5710-5-git-send-email-weiyang@linux.vnet.ibm.com> In-Reply-To: <1431697024-5710-1-git-send-email-weiyang@linux.vnet.ibm.com> References: <1431697024-5710-1-git-send-email-weiyang@linux.vnet.ibm.com> Cc: linux-pci@vger.kernel.org, Wei Yang , linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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