[PATCH 0/6] *** Dedicated vmid per process v2 ***

[zhoucm1]

ping... anyone can give the review?

Thanks,
David Zhou

On 2017年04月24日 13:57, Chunming Zhou wrote:
> 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.
>
> V2:
> 1. address Christian's comments:
> 	a. drop context flags for tag process, instead, add vm ioctl.
> 	b. change order of patches.
> 	c. sync waiting only when vm flush needs.
>
> 2. address Alex's comments;
> 	bump module version
>
> Chunming Zhou (6):
>    drm/amdgpu: add vm ioctl
>    drm/amdgpu: add dedicated vmid field in vm struct
>    drm/amdgpu: reserve vmid by vm ioctl
>    drm/amdgpu: add limitation for dedicated vm number v2
>    drm/amdgpu: implement grab dedicated vmid V2
>    drm/amdgpu: bump module verion for reserved vmid
>
>   drivers/gpu/drm/amd/amdgpu/amdgpu.h        |   1 +
>   drivers/gpu/drm/amd/amdgpu/amdgpu_device.c |   1 +
>   drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c    |   3 +-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c    |   1 +
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c     | 159 ++++++++++++++++++++++++++++-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h     |   5 +
>   include/uapi/drm/amdgpu_drm.h              |  20 ++++
>   7 files changed, 188 insertions(+), 2 deletions(-)
>