Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758175AbYHDQFz (ORCPT ); Mon, 4 Aug 2008 12:05:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754243AbYHDQFF (ORCPT ); Mon, 4 Aug 2008 12:05:05 -0400 Received: from outbound-wa4.frontbridge.com ([216.32.181.16]:50499 "EHLO WA4EHSOBE001.bigfish.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753505AbYHDQFD (ORCPT ); Mon, 4 Aug 2008 12:05:03 -0400 X-BigFish: VPS7(zz19c2kzz10d3izzz32i43j62h) X-Spam-TCS-SCL: 1:0 X-WSS-ID: 0K533C1-04-0UD-01 From: Joerg Roedel To: Andrew Morton CC: mingo@redhat.com, tglx@linutronix.de, hpa@zytor.com, rth@twiddle.net, paulus@samba.org, benh@kernel.crashing.org, davem@davemloft.net, FUJITA Tomonori , Muli Ben-Yehuda , linux-kernel@vger.kernel.org, Joerg Roedel Subject: [PATCH 08/10] powerpc: use iommu_num_pages function in IOMMU code Date: Mon, 4 Aug 2008 18:04:48 +0200 Message-ID: <1217865890-3593-9-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.5.3.7 In-Reply-To: <1217865890-3593-1-git-send-email-joerg.roedel@amd.com> References: <1217865890-3593-1-git-send-email-joerg.roedel@amd.com> X-OriginalArrivalTime: 04 Aug 2008 16:04:51.0730 (UTC) FILETIME=[D3D9B720:01C8F64B] MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2763 Lines: 83 Signed-off-by: Joerg Roedel --- arch/powerpc/kernel/iommu.c | 23 +++++++---------------- 1 files changed, 7 insertions(+), 16 deletions(-) diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index e2cf632..ea1ba89 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -51,17 +51,6 @@ static int protect4gb = 1; static void __iommu_free(struct iommu_table *, dma_addr_t, unsigned int); -static inline unsigned long iommu_nr_pages(unsigned long vaddr, - unsigned long slen) -{ - unsigned long npages; - - npages = IOMMU_PAGE_ALIGN(vaddr + slen) - (vaddr & IOMMU_PAGE_MASK); - npages >>= IOMMU_PAGE_SHIFT; - - return npages; -} - static int __init setup_protect4gb(char *str) { if (strcmp(str, "on") == 0) @@ -325,7 +314,7 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl, } /* Allocate iommu entries for that segment */ vaddr = (unsigned long) sg_virt(s); - npages = iommu_nr_pages(vaddr, slen); + npages = iommu_num_pages(vaddr, slen, IOMMU_PAGE_SIZE); align = 0; if (IOMMU_PAGE_SHIFT < PAGE_SHIFT && slen >= PAGE_SIZE && (vaddr & ~PAGE_MASK) == 0) @@ -418,7 +407,8 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl, unsigned long vaddr, npages; vaddr = s->dma_address & IOMMU_PAGE_MASK; - npages = iommu_nr_pages(s->dma_address, s->dma_length); + npages = iommu_num_pages(s->dma_address, s->dma_length, + IOMMU_PAGE_SIZE); __iommu_free(tbl, vaddr, npages); s->dma_address = DMA_ERROR_CODE; s->dma_length = 0; @@ -452,7 +442,8 @@ void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist, if (sg->dma_length == 0) break; - npages = iommu_nr_pages(dma_handle, sg->dma_length); + npages = iommu_num_pages(dma_handle, sg->dma_length, + IOMMU_PAGE_SIZE); __iommu_free(tbl, dma_handle, npages); sg = sg_next(sg); } @@ -584,7 +575,7 @@ dma_addr_t iommu_map_single(struct device *dev, struct iommu_table *tbl, BUG_ON(direction == DMA_NONE); uaddr = (unsigned long)vaddr; - npages = iommu_nr_pages(uaddr, size); + npages = iommu_num_pages(uaddr, size, IOMMU_PAGE_SIZE); if (tbl) { align = 0; @@ -617,7 +608,7 @@ void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle, BUG_ON(direction == DMA_NONE); if (tbl) { - npages = iommu_nr_pages(dma_handle, size); + npages = iommu_num_pages(dma_handle, size, IOMMU_PAGE_SIZE); iommu_free(tbl, dma_handle, npages); } } -- 1.5.3.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/