wsi_display_destroy_buffer(struct wsi_display *wsi,
uint32_t buffer)
{
- (void) drmIoctl(wsi->fd, DRM_IOCTL_MODE_DESTROY_DUMB,
- &((struct drm_mode_destroy_dumb) { .handle = buffer }));
+ (void) drmIoctl(wsi->fd, DRM_IOCTL_GEM_CLOSE,
+ &((struct drm_gem_close) { .handle = buffer }));
}
static VkResult
return ret;
}
+
+/*
+ * Local version fo the libdrm helper. Added to avoid depending on bleeding
+ * edge version of the library.
+ */
+static int
+local_drmIsMaster(int fd)
+{
+ /* Detect master by attempting something that requires master.
+ *
+ * Authenticating magic tokens requires master and 0 is an
+ * internal kernel detail which we could use. Attempting this on
+ * a master fd would fail therefore fail with EINVAL because 0
+ * is invalid.
+ *
+ * A non-master fd will fail with EACCES, as the kernel checks
+ * for master before attempting to do anything else.
+ *
+ * Since we don't want to leak implementation details, use
+ * EACCES.
+ */
+ return drmAuthMagic(fd, 0) != -EACCES;
+}
+
VkResult
wsi_display_init_wsi(struct wsi_device *wsi_device,
const VkAllocationCallbacks *alloc,
}
wsi->fd = display_fd;
+ if (wsi->fd != -1 && !local_drmIsMaster(wsi->fd))
+ wsi->fd = -1;
+
wsi->alloc = alloc;
list_inithead(&wsi->connectors);