pipe-loader: add pipe_loader_ops::configuration()

Required for the dri state-tracker. Will be used to retrieve
driver specific configuration parameters:
 - share_fd (dmabuf) capability
 - throttle

Signed-off-by: Emil Velikov <[email protected]>

1 files changed, 24 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c b/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c
index 2e5b74bacdc..1bbaf190c5b 100644
--- a/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c
+++ b/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c
@@ -261,6 +261,29 @@ pipe_loader_drm_release(struct pipe_loader_device **dev)
    *dev = NULL;
 }
 
+static const struct drm_conf_ret *
+pipe_loader_drm_configuration(struct pipe_loader_device *dev,
+                              enum drm_conf conf)
+{
+   struct pipe_loader_drm_device *ddev = pipe_loader_drm_device(dev);
+   const struct drm_driver_descriptor *dd;
+
+   if (!ddev->lib)
+      return NULL;
+
+   dd = (const struct drm_driver_descriptor *)
+      util_dl_get_proc_address(ddev->lib, "driver_descriptor");
+
+   /* sanity check on the name */
+   if (!dd || strcmp(dd->name, ddev->base.driver_name) != 0)
+      return NULL;
+
+   if (!dd->configuration)
+      return NULL;
+
+   return dd->configuration(conf);
+}
+
 static struct pipe_screen *
 pipe_loader_drm_create_screen(struct pipe_loader_device *dev,
                               const char *library_paths)
@@ -285,5 +308,6 @@ pipe_loader_drm_create_screen(struct pipe_loader_device *dev,
 
 static struct pipe_loader_ops pipe_loader_drm_ops = {
    .create_screen = pipe_loader_drm_create_screen,
+   .configuration = pipe_loader_drm_configuration,
    .release = pipe_loader_drm_release
 };