[Mesa-dev] [PATCH 10/10] loader: fallback to drmGetVersion() for non-pci devices

[Emil Velikov]

From: Rob Clark <robclark at freedesktop.org>

Use the kernel driver name are returned by drmGetVersion() for
non-pci(platform) devices.

Signed-off-by: Rob Clark <robclark at freedesktop.org>

v2 (Emil): Rebased and weaked commit message.
---
 src/loader/loader.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/loader/loader.c b/src/loader/loader.c
index 7d43603..4ba656f 100644
--- a/src/loader/loader.c
+++ b/src/loader/loader.c
@@ -227,8 +227,20 @@ loader_get_driver_for_fd(int fd, unsigned driver_types)
       driver_types = _LOADER_GALLIUM | _LOADER_DRI;
 
    if (!loader_get_pci_id_for_fd(fd, &vendor_id, &chip_id)) {
-      log(_LOADER_WARNING, "failed to get driver name for fd %d", fd);
-      return NULL;
+      /* fallback to drmGetVersion(): */
+      drmVersionPtr version = drmGetVersion(fd);
+
+      if (!version) {
+         log(_LOADER_WARNING, "failed to get driver name for fd %d", fd);
+         return NULL;
+      }
+
+      driver = strndup(version->name, version->name_len);
+      log(_LOADER_INFO, "using driver %s for %d", driver, fd);
+
+      drmFreeVersion(version);
+
+      return driver;
    }
 
    for (i = 0; driver_map[i].driver; i++) {
-- 
1.8.5.1