[PATCH 0/6] make ctx mgr global

[Christian König]

NAK to the whole approach.

If we want to share dependencies in the form of fences between devices 
and especially processes we must use android fences and the sync file 
framework.

Sharing numbers in the form of the IDR is a security nightmare we 
already ran into with the GEM flink design.

Regards,
Christian.

Am 18.08.2016 um 09:50 schrieb Chunming Zhou:
> If we want to share semaphore/dependency across process across device, we
> must make ctx id be global, so that we can index it everywhere.
>
> Chunming Zhou (6):
>    drm/amdgpu: use global ctx mgr instead of vm specified
>    drm/amdgpu: clean up for amdgpu ctx
>    drm/amdgpu: allocate progressively higher ids for ctx until idr
>      counter wraps
>    drm/amdgpu: ctx id should be removed when ctx is freed
>    drm/amdgpu: use fence-array for ctx release
>    drm/amdgpu: dependency is already signaled if ctx has been freed
>
>   drivers/gpu/drm/amd/amdgpu/amdgpu.h     |  17 ++--
>   drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c  |   9 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 142 ++++++++++++++++++--------------
>   drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c |   3 +
>   drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c |   4 -
>   5 files changed, 92 insertions(+), 83 deletions(-)
>