linux-kernel - [PATCH 0/5] intel-iommu fixes

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Message-ID: <20091026232401.9646.90540.stgit@nehalem.aw>
Date:	Mon, 26 Oct 2009 17:24:53 -0600
From:	Alex Williamson <alex.williamson@...com>
To:	dwmw2@...radead.org
Cc:	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, alex.williamson@...com
Subject: [PATCH 0/5] intel-iommu fixes

This series implements several fixes for intel-iommu.  The first
is to make use of the device coherent_dma_mask when allocating
coherent DMA buffers, for which we move dma_generic_alloc_coherent
out of the x86 code so we can use it by both of the current users
of intel-iommu.  Next, we add a little more to detecting when a
device can't support passthrough mode.  Then we reinstate RMRRs
for devices that get kicked out of passthrough mode.  And finally,
a trivial printk change to be less verbose on boot.

Ideally I'd like to entertain the idea of getting these into 2.6.32
because the coherent mapping issue is actually a regression since
2.6.31 and will cause some devices to fail to initialize in passthrough
mode (cciss for one).  Thanks,

Alex

---

Alex Williamson (5):
      intel-iommu: Quiet unnecessary output
      intel-iommu: Reinstate RMRRs if a device is removed from passthrough domain
      intel-iommu: Use max_pfn to determine whether a device can passthrough
      intel-iommu: Use dma_generic_alloc_coherent() for passthrough mappings
      dma: create dma_generic_alloc/free_coherent()

 arch/x86/include/asm/dma-mapping.h |    3 --
 arch/x86/kernel/pci-dma.c          |   31 --------------------
 arch/x86/kernel/pci-nommu.c        |   10 +++++--
 drivers/pci/intel-iommu.c          |   55 +++++++++++++++++++++++++++++++++---
 include/linux/dma-mapping.h        |   44 +++++++++++++++++++++++++++++
 5 files changed, 102 insertions(+), 41 deletions(-)

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