Allow UM to label a BO for which it possesses a DRM handle.
Signed-off-by: Adrián Larumbe <adrian.larumbe@xxxxxxxxxxxxx>
---
drivers/gpu/drm/panthor/panthor_drv.c | 31 +++++++++++++++++++++++++++
include/uapi/drm/panthor_drm.h | 14 ++++++++++++
2 files changed, 45 insertions(+)
diff --git a/drivers/gpu/drm/panthor/panthor_drv.c b/drivers/gpu/drm/panthor/panthor_drv.c
index 310bb44abe1a..f41b8946258f 100644
--- a/drivers/gpu/drm/panthor/panthor_drv.c
+++ b/drivers/gpu/drm/panthor/panthor_drv.c
@@ -1330,6 +1330,35 @@ static int panthor_ioctl_vm_get_state(struct drm_device *ddev, void *data,
return 0;
}
+static int panthor_ioctl_label_bo(struct drm_device *ddev, void *data,
+ struct drm_file *file)
+{
+ struct drm_panthor_label_bo *args = data;
+ struct drm_gem_object *obj;
+ const char *label;
+ int ret = 0;
+
+ obj = drm_gem_object_lookup(file, args->handle);
+ if (!obj)
+ return -ENOENT;
+
+ if (args->len && args->label) {
+ label = strndup_user(u64_to_user_ptr(args->label), args->len + 1);
+ if (IS_ERR(label)) {
+ ret = PTR_ERR(label);
+ goto err_label;
+ }
+ } else
+ label = NULL;
+
+ panthor_gem_label_bo(obj, label);
+
+err_label:
+ drm_gem_object_put(obj);
+
+ return ret;
+}
+
static int
panthor_open(struct drm_device *ddev, struct drm_file *file)
{
@@ -1399,6 +1428,7 @@ static const struct drm_ioctl_desc panthor_drm_driver_ioctls[] = {
PANTHOR_IOCTL(TILER_HEAP_CREATE, tiler_heap_create, DRM_RENDER_ALLOW),
PANTHOR_IOCTL(TILER_HEAP_DESTROY, tiler_heap_destroy, DRM_RENDER_ALLOW),
PANTHOR_IOCTL(GROUP_SUBMIT, group_submit, DRM_RENDER_ALLOW),
+ PANTHOR_IOCTL(LABEL_BO, label_bo, DRM_RENDER_ALLOW),
};
static int panthor_mmap(struct file *filp, struct vm_area_struct *vma)
@@ -1508,6 +1538,7 @@ static void panthor_debugfs_init(struct drm_minor *minor)
* - 1.2 - adds DEV_QUERY_GROUP_PRIORITIES_INFO query
* - adds PANTHOR_GROUP_PRIORITY_REALTIME priority
* - 1.3 - adds DRM_PANTHOR_GROUP_STATE_INNOCENT flag
+ * - 1.4 - adds DRM_IOCTL_PANTHOR_LABEL_BO ioctl
*/
static const struct drm_driver panthor_drm_driver = {
.driver_features = DRIVER_RENDER | DRIVER_GEM | DRIVER_SYNCOBJ |
diff --git a/include/uapi/drm/panthor_drm.h b/include/uapi/drm/panthor_drm.h
index 97e2c4510e69..1a7ed567d36a 100644
--- a/include/uapi/drm/panthor_drm.h
+++ b/include/uapi/drm/panthor_drm.h
@@ -127,6 +127,9 @@ enum drm_panthor_ioctl_id {
/** @DRM_PANTHOR_TILER_HEAP_DESTROY: Destroy a tiler heap. */
DRM_PANTHOR_TILER_HEAP_DESTROY,
+
+ /** @DRM_PANTHOR_LABEL_BO: Label a BO. */
+ DRM_PANTHOR_LABEL_BO,
};
/**
@@ -977,6 +980,15 @@ struct drm_panthor_tiler_heap_destroy {
__u32 pad;
};
+/**
+ * struct drm_panthor_label_bo - Arguments passed to DRM_IOCTL_PANTHOR_LABEL_BO
+ */
+struct drm_panthor_label_bo {
+ __u32 handle;
+ __u32 len;
+ __u64 label;
+};
+
/**
* DRM_IOCTL_PANTHOR() - Build a Panthor IOCTL number
* @__access: Access type. Must be R, W or RW.
@@ -1019,6 +1031,8 @@ enum {
DRM_IOCTL_PANTHOR(WR, TILER_HEAP_CREATE, tiler_heap_create),
DRM_IOCTL_PANTHOR_TILER_HEAP_DESTROY =
DRM_IOCTL_PANTHOR(WR, TILER_HEAP_DESTROY, tiler_heap_destroy),
+ DRM_IOCTL_PANTHOR_LABEL_BO =
+ DRM_IOCTL_PANTHOR(WR, LABEL_BO, label_bo),
};
#if defined(__cplusplus)
--
2.48.1
