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author | Deepak Nibade <dnibade@nvidia.com> | 2018-02-28 06:56:36 -0500 |
---|---|---|
committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2018-03-01 16:53:28 -0500 |
commit | df2100018db1dba730937fe76464a8edf8ebf5dc (patch) | |
tree | 016ba84823e0752f665e3b67e569b8ef146ccfc6 /drivers/gpu/nvgpu/gp10b/gp10b.c | |
parent | aa1da74a75aca5d85d1a78546fec381423bf5836 (diff) |
gpu: nvgpu: allocate separate client managed syncpoint for User
We right now allocate a nvgpu managed syncpoint in c->sync and share
that with user space
But to avoid conflicts between user space and kernel space increments
allocate a separate "client managed" syncpoint for User space in c->user_sync
Add new API nvgpu_nvhost_get_syncpt_client_managed() to request a client managed
syncpoint from nvhost.
Note that nvhost/nvgpu do not keep track of MAX/threshold value of this syncpoint
Update gk20a_channel_syncpt_create() to receive a flag to indicate whether a
User space syncpoint is required or not
Unset NVGPU_SUPPORT_USER_SYNCPOINT for gp10b since we don't want to allocate
double syncpoints per channel on that platform
For gv11b, once we move to use user space submits, support for c->sync will be
dropped so we keep using only one syncpoint per channel
Bug 200326065
Jira NVGPU-179
Change-Id: I78d94de4276db1c897ea2a4fe4c2db8b2a179722
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1665828
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>
Diffstat (limited to 'drivers/gpu/nvgpu/gp10b/gp10b.c')
-rw-r--r-- | drivers/gpu/nvgpu/gp10b/gp10b.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/nvgpu/gp10b/gp10b.c b/drivers/gpu/nvgpu/gp10b/gp10b.c index d0a21fe5..51dc4301 100644 --- a/drivers/gpu/nvgpu/gp10b/gp10b.c +++ b/drivers/gpu/nvgpu/gp10b/gp10b.c | |||
@@ -116,6 +116,5 @@ int gp10b_init_gpu_characteristics(struct gk20a *g) | |||
116 | gk20a_init_gpu_characteristics(g); | 116 | gk20a_init_gpu_characteristics(g); |
117 | gp10b_detect_ecc_enabled_units(g); | 117 | gp10b_detect_ecc_enabled_units(g); |
118 | __nvgpu_set_enabled(g, NVGPU_SUPPORT_RESCHEDULE_RUNLIST, true); | 118 | __nvgpu_set_enabled(g, NVGPU_SUPPORT_RESCHEDULE_RUNLIST, true); |
119 | __nvgpu_set_enabled(g, NVGPU_SUPPORT_USER_SYNCPOINT, true); | ||
120 | return 0; | 119 | return 0; |
121 | } | 120 | } |