From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f177.google.com (mail-pd0-f177.google.com [209.85.192.177]) by kanga.kvack.org (Postfix) with ESMTP id AAE3E6B0031 for ; Mon, 16 Jun 2014 21:39:31 -0400 (EDT) Received: by mail-pd0-f177.google.com with SMTP id y10so3537871pdj.22 for ; Mon, 16 Jun 2014 18:39:31 -0700 (PDT) Received: from smtp.codeaurora.org (smtp.codeaurora.org. [198.145.11.231]) by mx.google.com with ESMTPS id ag5si12764802pbc.9.2014.06.16.18.39.30 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 16 Jun 2014 18:39:30 -0700 (PDT) From: Laura Abbott Subject: [PATCHv3 0/5] Atomic pool for arm64 Date: Mon, 16 Jun 2014 18:39:20 -0700 Message-Id: <1402969165-7526-1-git-send-email-lauraa@codeaurora.org> Sender: owner-linux-mm@kvack.org List-ID: To: Will Deacon , Catalin Marinas Cc: Laura Abbott , David Riley , linux-arm-kernel@lists.infradead.org, Ritesh Harjain , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Russell King Hi, This is a series to add a pool for atomic allocations for arm64. It was previously suggested to try and share more code with arm. I did some refactoring to have arm use genalloc and pull out some of the remapping code. The end result is a negative diffstat overall for arm dma-mapping.c. There still might be some room for more refactoring of atomic functions into common dma-mapping.c and integration with dma-coherent.c but there should be less overlap now. Reviews and testing welcome. Thanks, Laura v3: Now a patch series due to refactoring of arm code. arm and arm64 now both use genalloc for atomic pool management. genalloc extensions added. DMA remapping code factored out as well. v2: Various bug fixes pointed out by David and Ritesh (CMA dependency, swapping coherent, noncoherent). I'm still not sure how to address the devicetree suggestion by Will [1][2]. I added the devicetree mailing list this time around to get more input on this. [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-April/249180.html [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-April/249528.html Laura Abbott (5): lib/genalloc.c: Add power aligned algorithm lib/genalloc.c: Add genpool range check function common: dma-mapping: Introduce common remapping functions arm: use genalloc for the atomic pool arm64: Add atomic pool for non-coherent and CMA allocaitons. arch/arm/Kconfig | 1 + arch/arm/mm/dma-mapping.c | 200 ++++++++----------------------- arch/arm64/Kconfig | 1 + arch/arm64/mm/dma-mapping.c | 154 +++++++++++++++++++++--- drivers/base/dma-mapping.c | 66 ++++++++++ include/asm-generic/dma-mapping-common.h | 9 ++ include/linux/genalloc.h | 7 ++ lib/genalloc.c | 50 ++++++++ 8 files changed, 323 insertions(+), 165 deletions(-) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org