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[PATCH v12 0/2] staging/android: Sync ABI rework

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From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

Hi,

Here we clean up the Sync ABI and then improve in to a more optimized version.
Also it is now less likely to need changes in the future. This is not
breaking any upstream user of the sync framework, as no driver wired support
for it, so far Android is the only user. A patch to AOSP will be provided
to fix it there.

We've made the changes in a way that userspace can figure out if the new
versions are present and if not fallback to the older ABI version. More
information on patch 2 description.

To accomplish that we had to create a u64_to_user_ptr() macro so
patch 1 adds that and also fixes some places in the kernel that
were using (void __user *)(uintptr_t) cast directly.

Patch 2 is the actual rework and has Ack from the people interested in it,
including Android folks.

Gustavo Padovan (2):
  kernel.h: add u64_to_user_ptr()
  staging/android: refactor SYNC IOCTLs

 drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 11 ++--
 drivers/gpu/drm/i915/i915_drv.h              |  5 --
 drivers/gpu/drm/i915/i915_gem.c              | 14 ++---
 drivers/gpu/drm/i915/i915_gem_execbuffer.c   | 14 ++---
 drivers/gpu/drm/msm/msm_gem_submit.c         | 11 ++--
 drivers/staging/android/sync.c               | 76 +++++++++++++++-------------
 drivers/staging/android/uapi/sync.h          | 36 +++++++++----
 include/linux/kernel.h                       |  7 +++
 8 files changed, 94 insertions(+), 80 deletions(-)

-- 
2.5.5

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[PATCH v12 0/2] staging/android: Sync ABI rework Gustavo Padovan <gustavo@padovan.org> - 2016-04-21 17:40 +0200
  [PATCH v12 1/2] kernel.h: add u64_to_user_ptr() Gustavo Padovan <gustavo@padovan.org> - 2016-04-21 17:40 +0200
    Re: [PATCH v12 1/2] kernel.h: add u64_to_user_ptr() Daniel Vetter <daniel@ffwll.ch> - 2016-04-22 10:40 +0200
      Re: [PATCH v12 1/2] kernel.h: add u64_to_user_ptr() Gustavo Padovan <gustavo@padovan.org> - 2016-04-22 16:40 +0200
    Re: [PATCH v12 1/2] kernel.h: add u64_to_user_ptr() Rob Clark <robdclark@gmail.com> - 2016-04-22 17:20 +0200
      Re: [PATCH v12 1/2] kernel.h: add u64_to_user_ptr() Maarten Lankhorst <maarten.lankhorst@linux.intel.com> - 2016-04-24 12:50 +0200
    Re: [PATCH v12 1/2] kernel.h: add u64_to_user_ptr() Lucas Stach <l.stach@pengutronix.de> - 2016-04-26 11:30 +0200
      Re: [PATCH v12 1/2] kernel.h: add u64_to_user_ptr() Gustavo Padovan <gustavo.padovan@collabora.co.uk> - 2016-04-26 16:30 +0200
        Re: [PATCH v12 1/2] kernel.h: add u64_to_user_ptr() Joe Perches <joe@perches.com> - 2016-04-26 16:50 +0200

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