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Groups > linux.kernel > #1430290

iommu/rockchip: Fix bugs and enable on ARM64

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This series intends mostly to enable support for ARM64 architecture
in the rockchip-iommu driver. On the way to do so, some bugs are also
fixed.

The most important changes here are:
 - making the Rockchip IOMMU driver use DMA API for managing cache
   coherency of page tables,
 - making the Rockchip DRM driver not use DMA API on behalf of a virtual
   device (behind a virtual IOMMU) to allocate and map buffers, but
   instead proper DRM helpers and IOMMU API directly.

Changes since v4:
 - Address some coding style comments on:
    - https://chromium-review.googlesource.com/#/c/346328/38
    - https://chromium-review.googlesource.com/#/c/353591/10
Changes since v3:
 - Drop the idea of virtual IOMMU. Instead replace hacky allocation code
   in DRM driver, with proper management of IOMMU domain.
 - Add one more fix for allocation of IOMMU register base addresses.
Changes since v2:
 - Instead of registering virtual IOMMU from DTS, create it when
   attaching.
 - Fix some bugs found in internal review.

Shunqian Zheng (4):
  iommu/rockchip: Fix allocation of bases array in driver probe
  iommu/rockchip: Use DMA API to manage coherency
  iommu/rockchip: Prepare to support generic DMA mapping
  drm/rockchip: Use common IOMMU API to attach devices

Simon Xue (3):
  iommu/rockchip: Fix devm_{request,free}_irq parameter
  iommu/rockchip: Add map_sg callback for rk_iommu_ops
  iommu/rockchip: Enable Rockchip IOMMU on ARM64

Tomasz Figa (1):
  drm/rockchip: Do not use DMA mapping API if attached to IOMMU domain

 drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 100 +++++++------
 drivers/gpu/drm/rockchip/rockchip_drm_drv.h |   3 +
 drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 221 ++++++++++++++++++++++++++--
 drivers/gpu/drm/rockchip/rockchip_drm_gem.h |   9 ++
 drivers/iommu/Kconfig                       |   2 +-
 drivers/iommu/rockchip-iommu.c              | 181 +++++++++++++++++------
 6 files changed, 413 insertions(+), 103 deletions(-)

-- 
1.9.1

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iommu/rockchip: Fix bugs and enable on ARM64 Shunqian Zheng <zhengsq@rock-chips.com> - 2016-06-24 04:20 +0200
  [PATCH v5 7/8] drm/rockchip: Use common IOMMU API to attach devices Shunqian Zheng <zhengsq@rock-chips.com> - 2016-06-24 04:20 +0200
    Re: [PATCH v5 7/8] drm/rockchip: Use common IOMMU API to attach  devices Mark yao <mark.yao@rock-chips.com> - 2016-07-08 03:00 +0200
  [PATCH v5 1/8] iommu/rockchip: Fix devm_{request,free}_irq parameter Shunqian Zheng <zhengsq@rock-chips.com> - 2016-06-24 04:20 +0200
  [PATCH v5 2/8] iommu/rockchip: Add map_sg callback for rk_iommu_ops Shunqian Zheng <zhengsq@rock-chips.com> - 2016-06-24 04:20 +0200
  [PATCH v5 3/8] iommu/rockchip: Fix allocation of bases array in driver probe Shunqian Zheng <zhengsq@rock-chips.com> - 2016-06-24 04:20 +0200
  [PATCH v5 6/8] drm/rockchip: Do not use DMA mapping API if attached to IOMMU domain Shunqian Zheng <zhengsq@rock-chips.com> - 2016-06-24 04:20 +0200
    Re: [PATCH v5 6/8] drm/rockchip: Do not use DMA mapping API if  attached to IOMMU domain Mark yao <mark.yao@rock-chips.com> - 2016-07-08 03:00 +0200
  [PATCH v5 5/8] iommu/rockchip: Prepare to support generic DMA mapping Shunqian Zheng <zhengsq@rock-chips.com> - 2016-06-24 04:20 +0200
  [PATCH v5 8/8] iommu/rockchip: Enable Rockchip IOMMU on ARM64 Shunqian Zheng <zhengsq@rock-chips.com> - 2016-06-24 04:20 +0200
  Re: iommu/rockchip: Fix bugs and enable on ARM64 Joerg Roedel <joro@8bytes.org> - 2016-06-27 15:00 +0200
    Re: iommu/rockchip: Fix bugs and enable on ARM64 Mark yao <mark.yao@rock-chips.com> - 2016-07-08 03:10 +0200

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