From: Gustavo Padovan <gustavo.pado...@collabora.co.uk> Hi Greg,
This patchset 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. It already has Acks from maintainers of drm drivers it changes. 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
