From patchwork Thu May 14 22:42:27 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Becky Bruce X-Patchwork-Id: 27229 X-Patchwork-Delegate: benh@kernel.crashing.org Return-Path: X-Original-To: patchwork-incoming@bilbo.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from ozlabs.org (ozlabs.org [203.10.76.45]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mx.ozlabs.org", Issuer "CA Cert Signing Authority" (verified OK)) by bilbo.ozlabs.org (Postfix) with ESMTPS id 10241B6F35 for ; Fri, 15 May 2009 08:43:14 +1000 (EST) Received: by ozlabs.org (Postfix) id 9B9F1DE120; Fri, 15 May 2009 08:42:57 +1000 (EST) Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [127.0.0.1]) by ozlabs.org (Postfix) with ESMTP id 97D2EDE19B for ; Fri, 15 May 2009 08:42:57 +1000 (EST) X-Original-To: linuxppc-dev@ozlabs.org Delivered-To: linuxppc-dev@ozlabs.org Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id C8F3CDE00A for ; Fri, 15 May 2009 08:42:36 +1000 (EST) Received: from localhost (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.13.8) with ESMTP id n4EMgTKw004072; Thu, 14 May 2009 17:42:29 -0500 From: Becky Bruce To: linuxppc-dev@ozlabs.org Subject: [PATCH V2 1/3] powerpc: Use sg->dma_length in sg_dma_len() macro on 32-bit Date: Thu, 14 May 2009 17:42:27 -0500 Message-Id: <1242340949-16369-1-git-send-email-beckyb@kernel.crashing.org> X-Mailer: git-send-email 1.6.0.6 Cc: fujita.tomonori@lab.ntt.co.jp X-BeenThere: linuxppc-dev@ozlabs.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@ozlabs.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@ozlabs.org Currently, the 32-bit code uses sg->length instead of sg->dma_lentgh to report sg_dma_len. However, since the default dma code for 32-bit (the dma_direct case) sets dma_length and length to the same thing, we should be able to use dma_length there as well. This gets rid of some 32-vs-64-bit ifdefs, and is needed by the swiotlb code which actually distinguishes between dma_length and length. Signed-off-by: Becky Bruce --- arch/powerpc/include/asm/scatterlist.h | 6 +----- 1 files changed, 1 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/include/asm/scatterlist.h b/arch/powerpc/include/asm/scatterlist.h index fcf7d55..912bf59 100644 --- a/arch/powerpc/include/asm/scatterlist.h +++ b/arch/powerpc/include/asm/scatterlist.h @@ -21,7 +21,7 @@ struct scatterlist { unsigned int offset; unsigned int length; - /* For TCE support */ + /* For TCE or SWIOTLB support */ dma_addr_t dma_address; u32 dma_length; }; @@ -34,11 +34,7 @@ struct scatterlist { * is 0. */ #define sg_dma_address(sg) ((sg)->dma_address) -#ifdef __powerpc64__ #define sg_dma_len(sg) ((sg)->dma_length) -#else -#define sg_dma_len(sg) ((sg)->length) -#endif #ifdef __powerpc64__ #define ISA_DMA_THRESHOLD (~0UL)