Try to reset the GPU from within igt_require_gem() if we notice we are
starting with a wedged device. If it remains wedged, the test definitely
cannot run. We leave a warning in place to highlight the potentially
suspect result, which will keep the flip-flops alive in CI!
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
lib/ioctl_wrappers.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c
index 10d958726..5d2c82099 100644
--- a/lib/ioctl_wrappers.c
+++ b/lib/ioctl_wrappers.c
@@ -1428,14 +1428,20 @@ void igt_require_gem(int fd)
* sequences of batches.
*/
err = igt_debugfs_dir(fd);
- if (err != -1) {
- igt_sysfs_printf(err, "i915_next_seqno", "1");
- close(err);
+ igt_require(err >= 0);
+
+ if (ioctl(fd, DRM_IOCTL_I915_GEM_THROTTLE)) {
+ igt_warn("Found wedged device, trying to reset and continue\n");
+ igt_sysfs_set(err, "i915_wedged", "-1");
}
+ igt_sysfs_set(err, "i915_next_seqno", "1");
+
+ close(err);
err = 0;
if (ioctl(fd, DRM_IOCTL_I915_GEM_THROTTLE))
err = -errno;
+
close(fd);
igt_require_f(err == 0, "Unresponsive i915/GEM device\n");
--
2.16.1
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