tests/prime_self_import: Add a flink/dma-buf self-import test

This checks that we really always fill the dma-buf export cache. Which
sometimes we don't.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/tests/prime_self_import.c b/tests/prime_self_import.c
index b8b91e7..59b550d 100644 (file)
--- a/tests/prime_self_import.c
+++ b/tests/prime_self_import.c
@@ -143,6 +143,31 @@ static void test_with_two_bos(void)
        close(fd2);
 }
 
+static void test_with_one_bo_two_files(void)
+{
+       int fd1, fd2;
+       uint32_t handle_import, handle_open, handle_orig, flink_name;
+       int dma_buf_fd;
+
+       fd1 = drm_open_any();
+       fd2 = drm_open_any();
+
+       handle_orig = gem_create(fd1, BO_SIZE);
+
+       flink_name = gem_flink(fd1, handle_orig);
+       handle_open = gem_open(fd2, flink_name);
+
+       dma_buf_fd = prime_handle_to_fd(fd2, handle_open);
+       handle_import = prime_fd_to_handle(fd1, dma_buf_fd);
+
+       /* dma-buf selfimporting an flink bo should give the same handle */
+       assert(handle_import == handle_open);
+
+       close(fd1);
+       close(fd2);
+       close(dma_buf_fd);
+}
+
 static void test_with_one_bo(void)
 {
        int fd1, fd2;
@@ -348,6 +373,7 @@ int main(int argc, char **argv)
                void (*fn)(void);
        } tests[] = {
                { "with_one_bo", test_with_one_bo },
+               { "with_one_bo_two_files", test_with_one_bo_two_files },
                { "with_two_bos", test_with_two_bos },
                { "with_fd_dup", test_with_fd_dup },
                { "export-vs-gem_close-race", test_export_close_race },