tu/wsi: allow presentation on non-DRM devices (KGSL)

tu_wsi_can_present_on_device() uses wsi_common_drm_devices_equal() to
match the GPU device against the display fd by calling drmGetDevice2().
However, KGSL exposes the GPU via /dev/kgsl-3d0, which is not part of
the DRM subsystem. As a result, drmGetDevice2() always fails on the
KGSL local_fd, causing can_present_on_device() to unconditionally return
false and making vkCreateSwapchainKHR fail on all Adreno devices using
the KGSL kernel driver.

Fix this by detecting the KGSL case: if the DRM device comparison fails
and no DRM master fd is present (master_fd == -1), skip the check and
allow presentation on any display fd. This restores swapchain creation
on Adreno 725 and similar devices running in Android container
environments with KGSL.

Fixes: vkcube crashing at demo_prepare_buffers on Adreno 725 (KGSL path)

Author: lfdevs

src/freedreno/vulkan/tu_wsi.cc

@@ -27,6 +27,13 @@ tu_wsi_can_present_on_device(VkPhysicalDevice physicalDevice, int fd)
 {
 #ifdef HAVE_LIBDRM
    VK_FROM_HANDLE(tu_physical_device, pdevice, physicalDevice);
+   /* KGSL uses /dev/kgsl-3d0 which is not a DRM device, so drmGetDevice2()
+    * fails on local_fd. In this case, we allow presentation on any display fd
+    * since there is no reliable way to match them via the DRM subsystem.
+    */
+   if (!wsi_common_drm_devices_equal(fd, pdevice->local_fd) &&
+       pdevice->master_fd == -1)
+      return true;
    return wsi_common_drm_devices_equal(fd, pdevice->local_fd);
 #else
    return true;