From: Mikko Perttunen <mperttunen@xxxxxxxxxx>
Implement new syncpoint wait UAPI. This is different from the
legacy one in taking an absolute timestamp in line with modern
DRM conventions.
Signed-off-by: Mikko Perttunen <mperttunen@xxxxxxxxxx>
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
Changes in v8:
- rebase on top of latest UABI changes
drivers/gpu/drm/tegra/drm.c | 2 ++
drivers/gpu/drm/tegra/uapi.c | 22 ++++++++++++++++++++++
drivers/gpu/drm/tegra/uapi.h | 2 ++
3 files changed, 26 insertions(+)
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
index 18aee825a1ff..082d520bdffc 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -732,6 +732,8 @@ static const struct drm_ioctl_desc tegra_drm_ioctls[] = {
DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(TEGRA_SYNCPOINT_FREE, tegra_drm_ioctl_syncpoint_free,
DRM_RENDER_ALLOW),
+ DRM_IOCTL_DEF_DRV(TEGRA_SYNCPOINT_WAIT, tegra_drm_ioctl_syncpoint_wait,
+ DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(TEGRA_GEM_CREATE, tegra_gem_create, DRM_RENDER_ALLOW),
DRM_IOCTL_DEF_DRV(TEGRA_GEM_MMAP, tegra_gem_mmap, DRM_RENDER_ALLOW),
diff --git a/drivers/gpu/drm/tegra/uapi.c b/drivers/gpu/drm/tegra/uapi.c
index e91394e7264e..0ba57697706b 100644
--- a/drivers/gpu/drm/tegra/uapi.c
+++ b/drivers/gpu/drm/tegra/uapi.c
@@ -7,6 +7,7 @@
#include <drm/drm_drv.h>
#include <drm/drm_file.h>
+#include <drm/drm_utils.h>
#include "drm.h"
#include "uapi.h"
@@ -363,3 +364,24 @@ int tegra_drm_ioctl_syncpoint_free(struct drm_device *drm, void *data,
return 0;
}
+
+int tegra_drm_ioctl_syncpoint_wait(struct drm_device *drm, void *data,
+ struct drm_file *file)
+{
+ struct host1x *host1x = tegra_drm_to_host1x(drm->dev_private);
+ struct drm_tegra_syncpoint_wait *args = data;
+ signed long timeout_jiffies;
+ struct host1x_syncpt *sp;
+
+ if (args->padding != 0)
+ return -EINVAL;
+
+ sp = host1x_syncpt_get_by_id_noref(host1x, args->id);
+ if (!sp)
+ return -EINVAL;
+
+ timeout_jiffies = drm_timeout_abs_to_jiffies(args->timeout_ns);
+
+ return host1x_syncpt_wait(sp, args->threshold, timeout_jiffies,
+ &args->value);
+}
diff --git a/drivers/gpu/drm/tegra/uapi.h b/drivers/gpu/drm/tegra/uapi.h
index e4e498facf61..12adad770ad3 100644
--- a/drivers/gpu/drm/tegra/uapi.h
+++ b/drivers/gpu/drm/tegra/uapi.h
@@ -49,6 +49,8 @@ int tegra_drm_ioctl_syncpoint_allocate(struct drm_device *drm, void *data,
struct drm_file *file);
int tegra_drm_ioctl_syncpoint_free(struct drm_device *drm, void *data,
struct drm_file *file);
+int tegra_drm_ioctl_syncpoint_wait(struct drm_device *drm, void *data,
+ struct drm_file *file);
void tegra_drm_uapi_close_file(struct tegra_drm_file *file);
void tegra_drm_mapping_put(struct tegra_drm_mapping *mapping);
--
2.32.0
