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Revert "gpu: nvgpu: support user fence updates"

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This reverts commit 0c46f8a5e1.

We should not support tracking of MAX/threshold value for syncpoint allocated
by user space
Hence revert this patch

Bug 200326065
Jira NVGPU-179

Change-Id: I2df8f8c13fdac91c0814b11a2b7dee30153409d4
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1665827
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Deepak Nibade
2018-02-28 03:08:50 -08:00
committed by mobile promotions
parent abe829338c
commit aa1da74a75
4 changed files with 1 additions and 41 deletions
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22
drivers/gpu/nvgpu/common/linux/channel.c
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@@ -720,8 +720,7 @@ int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
return -EINVAL;
if ((flags & (NVGPU_SUBMIT_GPFIFO_FLAGS_FENCE_WAIT |
NVGPU_SUBMIT_GPFIFO_FLAGS_FENCE_GET |
NVGPU_SUBMIT_GPFIFO_FLAGS_USER_FENCE_UPDATE)) &&
NVGPU_SUBMIT_GPFIFO_FLAGS_FENCE_GET)) &&
!fence)
return -EINVAL;
@@ -758,16 +757,6 @@ int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
(g->can_railgate && !c->deterministic) ||
!skip_buffer_refcounting;
/*
* If User is adding increments to the pushbuffer and doing all job
* tracking, then no need for kernel tracking here
* User should ensure that all pre-requisites for fast submit are met
* Fail the submit if that's not the case
*/
if (need_job_tracking &&
(flags & NVGPU_SUBMIT_GPFIFO_FLAGS_USER_FENCE_UPDATE))
return -EINVAL;
if (need_job_tracking) {
bool need_sync_framework = false;
@@ -879,15 +868,6 @@ int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
goto clean_up;
}
if (flags & NVGPU_SUBMIT_GPFIFO_FLAGS_USER_FENCE_UPDATE) {
/*
* User space adds increments in the pushbuffer, so just
* handle the threshold book keeping in kernel by adding
* number of syncpoint increments to threshold
*/
c->sync->add_user_incrs(c->sync, fence->value);
}
if (need_job_tracking) {
err = channel_gk20a_alloc_job(c, &job);
if (err)