io: add qxl_io_destroy_primary

2 files changed, 16 insertions, 0 deletions

diff --git a/src/qxl.h b/src/qxl.h
index 1d6c79e..de19ede 100644
--- a/src/qxl.h
+++ b/src/qxl.h
@@ -435,6 +435,7 @@ static inline void qxl_mem_unverifiable(struct qxl_mem *mem) {}
 void qxl_update_area(qxl_screen_t *qxl);
 void qxl_io_memslot_add(qxl_screen_t *qxl, uint8_t id);
 void qxl_io_create_primary(qxl_screen_t *qxl);
+void qxl_io_destroy_primary(qxl_screen_t *qxl);
 void qxl_io_notify_oom(qxl_screen_t *qxl);
 void qxl_io_flush_surfaces(qxl_screen_t *qxl);
 void qxl_io_destroy_all_surfaces (qxl_screen_t *qxl);
diff --git a/src/qxl_driver.c b/src/qxl_driver.c
index 852cae2..809be5e 100644
--- a/src/qxl_driver.c
+++ b/src/qxl_driver.c
@@ -182,6 +182,21 @@ void qxl_io_create_primary(qxl_screen_t *qxl)
     qxl->device_primary = QXL_DEVICE_PRIMARY_CREATED;
 }
 
+void qxl_io_destroy_primary(qxl_screen_t *qxl)
+{
+#ifndef XSPICE
+    if (qxl->pci->revision >= 3) {
+        ioport_write(qxl, QXL_IO_DESTROY_PRIMARY_ASYNC, 0);
+        qxl_wait_for_io_command(qxl);
+    } else {
+        ioport_write(qxl, QXL_IO_DESTROY_PRIMARY, 0);
+    }
+#else
+    ioport_write(qxl, QXL_IO_DESTROY_PRIMARY, 0);
+#endif
+    qxl->device_primary = QXL_DEVICE_PRIMARY_NONE;
+}
+
 void qxl_io_notify_oom(qxl_screen_t *qxl)
 {
     ioport_write(qxl, QXL_IO_NOTIFY_OOM, 0);