diff options
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/include | |
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/include')
-rw-r--r-- | drivers/gpu/nvgpu/include/nvgpu/nvhost.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/include/nvgpu/nvhost.h b/drivers/gpu/nvgpu/include/nvgpu/nvhost.h index cb70f436..d5b5831a 100644 --- a/drivers/gpu/nvgpu/include/nvgpu/nvhost.h +++ b/drivers/gpu/nvgpu/include/nvgpu/nvhost.h | |||
@@ -65,6 +65,8 @@ void nvgpu_nvhost_syncpt_put_ref_ext(struct nvgpu_nvhost_dev *nvhost_dev, | |||
65 | u32 nvgpu_nvhost_get_syncpt_host_managed(struct nvgpu_nvhost_dev *nvhost_dev, | 65 | u32 nvgpu_nvhost_get_syncpt_host_managed(struct nvgpu_nvhost_dev *nvhost_dev, |
66 | u32 param, | 66 | u32 param, |
67 | const char *syncpt_name); | 67 | const char *syncpt_name); |
68 | u32 nvgpu_nvhost_get_syncpt_client_managed(struct nvgpu_nvhost_dev *nvhost_dev, | ||
69 | const char *syncpt_name); | ||
68 | 70 | ||
69 | int nvgpu_nvhost_create_symlink(struct gk20a *g); | 71 | int nvgpu_nvhost_create_symlink(struct gk20a *g); |
70 | void nvgpu_nvhost_remove_symlink(struct gk20a *g); | 72 | void nvgpu_nvhost_remove_symlink(struct gk20a *g); |