From: Rob Clark robdclark@chromium.org
The first six paches are various cleanups and simplifications. The next two get rid of redundant vma lookups in the submit and retire paths. Following that, fenced vma lets us indicate a fence value following which the vma is no longer used, which is needed because otherwise userspace could observe the signaled fence prior to retire_submits() finishing. (With userspace allocated GPU addresses userspace is tracking when a buffer is no longer used and it's vma can be deleted.) And finally the last patch adds the new uabi for user- space allocated iova.
v2: Fix inuse check in last patch, split GEM_WARN_ON() conversion to separate patch, and nits v3: Fix nested fb prepares in 06/10, return -EBUSY if trying to set iova on buffer that already has one in 10/10 v4: Fix race condition in 09/10
Rob Clark (10): drm/msm/gem: Move prototypes drm/msm/gpu: Drop duplicate fence counter drm/msm/gem: Convert some missed GEM_WARN_ON()s drm/msm/gem: Split out inuse helper drm/msm/gem: Drop PAGE_SHIFT for address space mm drm/msm: Drop msm_gem_iova() drm/msm/gem: Rework vma lookup and pin drm/msm/gem: Split vma lookup and pin drm/msm/gem: Add fenced vma unpin drm/msm: Add a way for userspace to allocate GPU iova
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 2 +- drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 2 +- drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 2 +- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 14 ++- drivers/gpu/drm/msm/msm_drv.c | 21 ++++ drivers/gpu/drm/msm/msm_drv.h | 23 ---- drivers/gpu/drm/msm/msm_fb.c | 20 +++- drivers/gpu/drm/msm/msm_fence.c | 6 +- drivers/gpu/drm/msm/msm_fence.h | 3 + drivers/gpu/drm/msm/msm_gem.c | 151 ++++++++++++++---------- drivers/gpu/drm/msm/msm_gem.h | 52 +++++++- drivers/gpu/drm/msm/msm_gem_submit.c | 32 ++--- drivers/gpu/drm/msm/msm_gem_vma.c | 61 +++++++--- drivers/gpu/drm/msm/msm_gpu.c | 8 +- drivers/gpu/drm/msm/msm_gpu.h | 2 +- drivers/gpu/drm/msm/msm_ringbuffer.c | 13 +- drivers/gpu/drm/msm/msm_ringbuffer.h | 1 - include/uapi/drm/msm_drm.h | 3 + 18 files changed, 277 insertions(+), 139 deletions(-)