linux-kernel - [PATCH 0/2] extend support for CMA CMA on x86

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Message-Id: <1385736706-3147-1-git-send-email-akinobu.mita@gmail.com>
Date:	Fri, 29 Nov 2013 23:51:44 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Cc:	Akinobu Mita <akinobu.mita@...il.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Andi Kleen <andi@...stfloor.org>,
	David Woodhouse <dwmw2@...radead.org>,
	iommu@...ts.linux-foundation.org
Subject: [PATCH 0/2] extend support for CMA CMA on x86

This patch set extends support for the DMA Contiguous Memory Allocator
on x86.  Currently it is only supported on pci-nommu.  So this aims at
enabling it on swiotlb and intel-iommu, too.

Regardless of which dma mapping implementation is actually used in the
system, I would like to allocate big contiguous memory with
dma_alloc_coherent() and tell the base address to the device that
requires it.  This is why I need this change.

Akinobu Mita (2):
  x86: enable DMA CMA with swiotlb
  intel-iommu: integrate DMA CMA

 arch/x86/Kconfig               |  2 +-
 arch/x86/include/asm/swiotlb.h |  7 +++++++
 arch/x86/kernel/amd_gart_64.c  |  2 +-
 arch/x86/kernel/pci-swiotlb.c  |  9 ++++++---
 arch/x86/pci/sta2x11-fixup.c   |  6 ++----
 drivers/iommu/intel-iommu.c    | 32 ++++++++++++++++++++++++--------
 include/linux/swiotlb.h        |  2 ++
 lib/swiotlb.c                  |  2 +-
 8 files changed, 44 insertions(+), 18 deletions(-)

Cc: Marek Szyprowski <m.szyprowski@...sung.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: x86@...nel.org
Cc: Andi Kleen <andi@...stfloor.org>
Cc: David Woodhouse <dwmw2@...radead.org>
Cc: iommu@...ts.linux-foundation.org
-- 
1.8.3.2

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