diff options
| author | Mikko Perttunen <mperttunen@nvidia.com> | 2021-03-29 16:38:34 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2021-03-31 17:42:13 +0200 |
| commit | f5ba33fb9690566c382624637125827b5512e766 (patch) | |
| tree | aac07e40146af90f707f7d6345fe628ed1fa677d /include/linux/host1x.h | |
| parent | aded42ada6eacfa11d349b158e993f66e4741aa7 (diff) | |
gpu: host1x: Reserve VBLANK syncpoints at initialization
On T20-T148 chips, the bootloader can set up a boot splash
screen with DC configured to increment syncpoint 26/27
at VBLANK. Because of this we shouldn't allow these syncpoints
to be allocated until DC has been reset and will no longer
increment them in the background.
As such, on these chips, reserve those two syncpoints at
initialization, and only mark them free once the DC
driver has indicated it's safe to do so.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'include/linux/host1x.h')
| -rw-r--r-- | include/linux/host1x.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/host1x.h b/include/linux/host1x.h index 107aea29bccb..e0a41c2b4c7a 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -163,6 +163,9 @@ struct host1x_syncpt *host1x_syncpt_alloc(struct host1x *host, struct host1x_syncpt_base *host1x_syncpt_get_base(struct host1x_syncpt *sp); u32 host1x_syncpt_base_id(struct host1x_syncpt_base *base); +void host1x_syncpt_release_vblank_reservation(struct host1x_client *client, + u32 syncpt_id); + /* * host1x channel */ |