[PATCH 0/5] *** Dedicated vmid per process ***

[Deucher, Alexander]

> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On Behalf
> Of Chunming Zhou
> Sent: Friday, April 21, 2017 6:06 AM
> To: amd-gfx at lists.freedesktop.org
> Cc: Zhou, David(ChunMing)
> Subject: [PATCH 0/5] *** Dedicated vmid per process ***
> 
> The current kernel implementation, which grabs the idle VMID from pool
> when emitting the job may:
> 
>     The back-to-back submission from one process could use different VMID.
>     The submission to different queues from single process could use different
> VMID
> 
> It works well in most case but cannot work for the SQ thread trace capture.
> 
> The VMID for the submission that set the {SQTT}_BASE, which refers to the
> address of the trace buffer, is stored in shader engine.
> 
> If the profiling application have to use different VMIDs to submit IBs in its life
> cycle:
> 
>     Some trace is not captured since it actually uses different VMID to submit
> jobs.
>     Some part of captured trace may come from different application since
> they are accidentally uses the owner’s VMID to submit jobs.

Please add a patch at the end to bump the module version so we can track when the flag is available.

Alex

> 
> 
> ChunmingrZhour(5):
>   drm/amdgpu: handle flags when context alloc
>   drm/amdgpu: add dedicated vmid field in vm struct
>   drm/amdgpu: add context flagn for dedicated vmid reqest
>   drm/amdgpu: implement grab dedicated vmid
>   drm/amdgpu: add limitation for dedicated vm number
> 
>  drivers/gpu/drm/amd/amdgpu/amdgpu.h        |   1 +
>  drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c    |  14 ++-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_device.c |   1 +
>  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c     | 137
> ++++++++++++++++++++++++++++-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h     |   6 ++
>  include/uapi/drm/amdgpu_drm.h              |   3 +
>  6 files changed, 158 insertions(+), 4 deletions(-)
> 
> --
> 1.9.1