From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e39.co.us.ibm.com (e39.co.us.ibm.com [32.97.110.160]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e39.co.us.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id E8C7B2C034E for ; Tue, 18 Jun 2013 18:34:43 +1000 (EST) Received: from /spool/local by e39.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 18 Jun 2013 02:34:35 -0600 Received: from d01relay04.pok.ibm.com (d01relay04.pok.ibm.com [9.56.227.236]) by d01dlp03.pok.ibm.com (Postfix) with ESMTP id 37C8EC9003E for ; Tue, 18 Jun 2013 04:34:03 -0400 (EDT) Received: from d03av04.boulder.ibm.com (d03av04.boulder.ibm.com [9.17.195.170]) by d01relay04.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r5I8Y3JZ317592 for ; Tue, 18 Jun 2013 04:34:03 -0400 Received: from d03av04.boulder.ibm.com (loopback [127.0.0.1]) by d03av04.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r5I8Y3dO003714 for ; Tue, 18 Jun 2013 02:34:03 -0600 From: Gavin Shan To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 03/31] powerpc/eeh: Make eeh_phb_pe_get() public Date: Tue, 18 Jun 2013 16:33:27 +0800 Message-Id: <1371544435-4943-4-git-send-email-shangw@linux.vnet.ibm.com> In-Reply-To: <1371544435-4943-1-git-send-email-shangw@linux.vnet.ibm.com> References: <1371544435-4943-1-git-send-email-shangw@linux.vnet.ibm.com> Cc: Gavin Shan List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , One of the possible cases indicated by P7IOC interrupt is fenced PHB. For that case, we need fetch the PE corresponding to the PHB and disable the PHB and all subordinate PCI buses/devices, recover from the fenced state and eventually enable the whole PHB. We need one function to fetch the PHB PE outside eeh_pe.c and the patch is going to make eeh_phb_pe_get() public for that purpose. Signed-off-by: Gavin Shan --- arch/powerpc/include/asm/eeh.h | 1 + arch/powerpc/kernel/eeh_pe.c | 2 +- 2 files changed, 2 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index e32c3c5..4ac6f70 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -184,6 +184,7 @@ static inline void eeh_unlock(void) typedef void *(*eeh_traverse_func)(void *data, void *flag); int eeh_phb_pe_create(struct pci_controller *phb); +struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb); int eeh_add_to_parent_pe(struct eeh_dev *edev); int eeh_rmv_from_parent_pe(struct eeh_dev *edev, int purge_pe); void *eeh_pe_dev_traverse(struct eeh_pe *root, diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c index 9d4a9e8..71c4544 100644 --- a/arch/powerpc/kernel/eeh_pe.c +++ b/arch/powerpc/kernel/eeh_pe.c @@ -95,7 +95,7 @@ int eeh_phb_pe_create(struct pci_controller *phb) * hierarchy tree is composed of PHB PEs. The function is used * to retrieve the corresponding PHB PE according to the given PHB. */ -static struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb) +struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb) { struct eeh_pe *pe; -- 1.7.5.4