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gpu: nvgpu: expose deterministic submit support

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Add these bits in the gpu characteristics flags:

NVGPU_GPU_FLAGS_SUPPORT_DETERMINISTIC_SUBMIT_NO_JOBTRACKING - fast
submits with no in-kernel job tracking are supported.

NVGPU_GPU_FLAGS_SUPPORT_DETERMINISTIC_SUBMIT_FULL - deterministic
submits also with job tracking and num_inflight_jobs set are supported.

Either of these may get disabled if the particular channel or submit
still requires features that block these.

Make gk20a_channel_sync_needs_sync_framework() take a gk20a pointer
instead of a channel pointer so that it can be called without a channel.
It does not need any per-channel data.

Bug 20029130
Bug 200274674

Change-Id: I5f82510b6d39b53bcf6f1006dd83bdd9053963a0
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: http://git-master/r/1456845
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
(cherry picked from commit ee9733e587 in
dev-kernel)
Reviewed-on: https://git-master.nvidia.com/r/1558993
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
This commit is contained in:
Konsta Holtta
2017-05-02 16:01:51 +03:00
committed by mobile promotions
parent b79a75517a
commit 42d90e17dd
5 changed files with 43 additions and 6 deletions
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2
drivers/gpu/nvgpu/gk20a/channel_gk20a.c
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@@ -3106,7 +3106,7 @@ int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
return -EINVAL;
need_sync_framework = force_need_sync_fence ||
gk20a_channel_sync_needs_sync_framework(c) ||
gk20a_channel_sync_needs_sync_framework(g) ||
(flags & NVGPU_SUBMIT_GPFIFO_FLAGS_SYNC_FENCE &&
(flags & NVGPU_SUBMIT_GPFIFO_FLAGS_FENCE_WAIT ||
flags & NVGPU_SUBMIT_GPFIFO_FLAGS_FENCE_GET));