From e8905e756cf3640c66541e963ff97f8af2d98936 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 10 Jul 2018 12:28:47 +0100 Subject: lib: Require working GEM (!wedged) to allow hang injection As we ordinarily use a spinning batch to trigger a hang, we cannot do so without execbuf. On the other hand, if we do a manual reset of the wedged driver, we expect it to remain wedged and for the reset to fail; failing the test. Even if we remove the igt_assert(!wedged), the test is suspect as we don't know if the reset took place and so do not know if the conditions the test is trying to setup apply. Signed-off-by: Chris Wilson Reviewed-by: Mika Kuoppala --- lib/igt_gt.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'lib/igt_gt.c') diff --git a/lib/igt_gt.c b/lib/igt_gt.c index 4569fd36..89b318ae 100644 --- a/lib/igt_gt.c +++ b/lib/igt_gt.c @@ -162,6 +162,13 @@ igt_hang_t igt_allow_hang(int fd, unsigned ctx, unsigned flags) }; unsigned ban; + /* + * If the driver is already wedged, we don't expect it to be able + * to recover from reset and for it to remain wedged. It's hard to + * say even if we do hang/reset making the test suspect. + */ + igt_require_gem(fd); + igt_assert(igt_sysfs_set_parameter (fd, "reset", "%d", INT_MAX /* any reset method */)); -- cgit v1.2.3