On my TODO list, but behind about two or three other items I need to
tackle first.
Christian.
Am 25.04.2017 um 11:07 schrieb 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(-)
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