From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from va3ehsobe006.messaging.microsoft.com ([216.32.180.16]:55665 "EHLO va3outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751858Ab3KSFYG (ORCPT ); Tue, 19 Nov 2013 00:24:06 -0500 From: Bharat Bhushan To: , , , , , , , , , CC: Bharat Bhushan , Bharat Bhushan Subject: [PATCH 6/9 v2] powerpc: pci: Extend msi iova page setup to arch specific Date: Tue, 19 Nov 2013 10:47:10 +0530 Message-ID: <1384838233-24847-7-git-send-email-Bharat.Bhushan@freescale.com> In-Reply-To: <1384838233-24847-1-git-send-email-Bharat.Bhushan@freescale.com> References: <1384838233-24847-1-git-send-email-Bharat.Bhushan@freescale.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-pci-owner@vger.kernel.org List-ID: This patch extend the interface to arch specific code for setting msi iova address for a msi page. Machine specific code is not yet implemented. Signed-off-by: Bharat Bhushan --- v2 - new patch arch/powerpc/include/asm/machdep.h | 2 ++ arch/powerpc/kernel/msi.c | 10 ++++++++++ 2 files changed, 12 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index 8d1b787..e87b806 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -132,6 +132,8 @@ struct machdep_calls { /* Returns the requested region's address and size */ int (*msi_get_region)(int region_num, struct msi_region *region); + int (*msi_set_iova)(struct pci_dev *pdev, int region_num, + dma_addr_t iova, bool set); #endif void (*restart)(char *cmd); diff --git a/arch/powerpc/kernel/msi.c b/arch/powerpc/kernel/msi.c index 1a67787..e2bd555 100644 --- a/arch/powerpc/kernel/msi.c +++ b/arch/powerpc/kernel/msi.c @@ -13,6 +13,16 @@ #include +int arch_msi_set_iova(struct pci_dev *pdev, int region_num, + dma_addr_t iova, bool set) +{ + if (ppc_md.msi_set_iova) { + pr_debug("msi: Using platform get_region_count routine.\n"); + return ppc_md.msi_set_iova(pdev, region_num, iova, set); + } + return 0; +} + int arch_msi_get_region_count(void) { if (ppc_md.msi_get_region_count) { -- 1.7.0.4