DMA related cleanups for IA64

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To: Tony Luck <tony.luck@xxxxxxxxx>, Fenghua Yu <fenghua.yu@xxxxxxxxx>
Subject: DMA related cleanups for IA64
From: Christoph Hellwig <hch@xxxxxx>
Date: Wed, 1 Aug 2018 18:02:43 +0200
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx

Hi all,

this is a resend of the last two series plus additional cleanups.  The
driver of it were the odd dma barriers in the ia64 sync_single_* methods,
but once I started to look into that area the fallback got bigger and
bigger..

Follow-Ups:
- Re: DMA related cleanups for IA64
  - From: Christoph Hellwig
- [PATCH 1/9] ia64: remove the kern_mem_attribute export
  - From: Christoph Hellwig
- [PATCH 2/9] ia64: remove the dead iommu_sac_force variable
  - From: Christoph Hellwig
- [PATCH 3/9] ia64: remove iommu_dma_supported
  - From: Christoph Hellwig
- [PATCH 4/9] ia64: remove the unused bad_dma_address symbol
  - From: Christoph Hellwig
- [PATCH 8/9] ia64: remove machvec_dma_sync_{single,sg}
  - From: Christoph Hellwig
- [PATCH 6/9] ia64: remove the unused iommu_dma_init function
  - From: Christoph Hellwig
- [PATCH 9/9] intel-iommu: mark intel_dma_ops static
  - From: Christoph Hellwig
- [PATCH 7/9] ia64/sn2: remove no-ops dma sync methods
  - From: Christoph Hellwig
- [PATCH 5/9] ia64: remove the unused pci_iommu_shutdown function
  - From: Christoph Hellwig

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