[PATCH i-g-t 09/12] lib/igt_dummyload: change addr calc for reloc

[Kamil Konieczny]

Change calculations for reloc randomization, now it will be
located in 1/2...3/4 address range.

Signed-off-by: Kamil Konieczny <kamil.konieczny at linux.intel.com>
---
 lib/igt_dummyload.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/lib/igt_dummyload.c b/lib/igt_dummyload.c
index 17ae21f5..25550dfa 100644
--- a/lib/igt_dummyload.c
+++ b/lib/igt_dummyload.c
@@ -130,15 +130,18 @@ emit_recursive_batch(igt_spin_t *spin,
 	 * that wrap.
 	 */
 
-	addr = gem_aperture_size(fd) / 2;
+	addr = gem_aperture_size(fd);
 	if (addr >> 32)
 		objflags |= EXEC_OBJECT_SUPPORTS_48B_ADDRESS;
 
 	if (!ahnd) {
-		addr /= 2;
+		uint64_t size;
 		if (addr >> 31)
 			addr = 1u << 31;
-		addr += random() % addr / 2;
+
+		size = addr / 2;
+		addr /= 4;
+		addr += random() % size;
 		addr &= -4096;
 	} else {
 		objflags |= EXEC_OBJECT_PINNED;
-- 
2.34.1