diff options
| author | Arto Merilainen <amerilainen@nvidia.com> | 2013-10-14 15:21:54 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2013-10-31 09:55:48 +0100 |
| commit | c54a169b528d0ac2a5d3a7bf91f8534323bda83d (patch) | |
| tree | bc2b2f9adef47c6ab2937ed05e55a752a0e2efb1 /drivers/gpu/drm/tegra | |
| parent | f5a954fed9b3eb04973ede72c50c66157fa9e15b (diff) | |
drm/tegra: Deliver syncpoint base to user space
This patch adds a separate ioctl for delivering syncpoint base number
to user space. If the syncpoint does not have an associated base, the
function returns -ENXIO.
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra')
| -rw-r--r-- | drivers/gpu/drm/tegra/drm.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index ecb6ec735ef1..28e178137718 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -418,6 +418,34 @@ static int tegra_submit(struct drm_device *drm, void *data, return context->client->ops->submit(context, args, drm, file); } + +static int tegra_get_syncpt_base(struct drm_device *drm, void *data, + struct drm_file *file) +{ + struct tegra_drm_file *fpriv = file->driver_priv; + struct drm_tegra_get_syncpt_base *args = data; + struct tegra_drm_context *context; + struct host1x_syncpt_base *base; + struct host1x_syncpt *syncpt; + + context = tegra_drm_get_context(args->context); + + if (!tegra_drm_file_owns_context(fpriv, context)) + return -ENODEV; + + if (args->syncpt >= context->client->base.num_syncpts) + return -EINVAL; + + syncpt = context->client->base.syncpts[args->syncpt]; + + base = host1x_syncpt_get_base(syncpt); + if (!base) + return -ENXIO; + + args->id = host1x_syncpt_base_id(base); + + return 0; +} #endif static const struct drm_ioctl_desc tegra_drm_ioctls[] = { @@ -431,6 +459,7 @@ static const struct drm_ioctl_desc tegra_drm_ioctls[] = { DRM_IOCTL_DEF_DRV(TEGRA_CLOSE_CHANNEL, tegra_close_channel, DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(TEGRA_GET_SYNCPT, tegra_get_syncpt, DRM_UNLOCKED), DRM_IOCTL_DEF_DRV(TEGRA_SUBMIT, tegra_submit, DRM_UNLOCKED), + DRM_IOCTL_DEF_DRV(TEGRA_GET_SYNCPT_BASE, tegra_get_syncpt_base, DRM_UNLOCKED), #endif }; |