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 /drivers/gpu/host1x/dev.c | |
| parent | gpu: host1x: Reset max value when freeing a syncpoint (diff) | |
| download | linux-dev-f5ba33fb9690566c382624637125827b5512e766.tar.xz linux-dev-f5ba33fb9690566c382624637125827b5512e766.zip | |
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 'drivers/gpu/host1x/dev.c')
| -rw-r--r-- | drivers/gpu/host1x/dev.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index d0ebb70e2fdd..fbb6447b8659 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -77,6 +77,7 @@ static const struct host1x_info host1x01_info = { .has_hypervisor = false, .num_sid_entries = 0, .sid_table = NULL, + .reserve_vblank_syncpts = true, }; static const struct host1x_info host1x02_info = { @@ -91,6 +92,7 @@ static const struct host1x_info host1x02_info = { .has_hypervisor = false, .num_sid_entries = 0, .sid_table = NULL, + .reserve_vblank_syncpts = true, }; static const struct host1x_info host1x04_info = { @@ -105,6 +107,7 @@ static const struct host1x_info host1x04_info = { .has_hypervisor = false, .num_sid_entries = 0, .sid_table = NULL, + .reserve_vblank_syncpts = false, }; static const struct host1x_info host1x05_info = { @@ -119,6 +122,7 @@ static const struct host1x_info host1x05_info = { .has_hypervisor = false, .num_sid_entries = 0, .sid_table = NULL, + .reserve_vblank_syncpts = false, }; static const struct host1x_sid_entry tegra186_sid_table[] = { @@ -142,6 +146,7 @@ static const struct host1x_info host1x06_info = { .has_hypervisor = true, .num_sid_entries = ARRAY_SIZE(tegra186_sid_table), .sid_table = tegra186_sid_table, + .reserve_vblank_syncpts = false, }; static const struct host1x_sid_entry tegra194_sid_table[] = { @@ -165,6 +170,7 @@ static const struct host1x_info host1x07_info = { .has_hypervisor = true, .num_sid_entries = ARRAY_SIZE(tegra194_sid_table), .sid_table = tegra194_sid_table, + .reserve_vblank_syncpts = false, }; static const struct of_device_id host1x_of_match[] = { |