Some setups (e.g. guc and gen10+) can not disable the MI_USER_INTERRUPT
generation and so can not simulate missed interrupts. These tests would
fail, so skip when the kernel reports no tests available.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
lib/igt_gt.c | 2 +-
tests/i915/missed_irq.c | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/igt_gt.c b/lib/igt_gt.c
index a20619246..dd28d821d 100644
--- a/lib/igt_gt.c
+++ b/lib/igt_gt.c
@@ -535,7 +535,7 @@ unsigned intel_detect_and_clear_missed_interrupts(int fd)
dir = igt_debugfs_dir(fd);
missed = 0;
- igt_assert(igt_sysfs_scanf(dir, "i915_ring_missed_irq", "%x", &missed) == 1);
+ igt_sysfs_scanf(dir, "i915_ring_missed_irq", "%x", &missed);
if (missed)
igt_sysfs_set(dir, "i915_ring_missed_irq", "0");
diff --git a/tests/i915/missed_irq.c b/tests/i915/missed_irq.c
index 78690c36a..cade3f371 100644
--- a/tests/i915/missed_irq.c
+++ b/tests/i915/missed_irq.c
@@ -113,6 +113,7 @@ igt_simple_main
debugfs = igt_debugfs_dir(device);
expect_rings = engine_mask(debugfs);
+ igt_require(expect_rings);
igt_debug("Clearing rings %x\n", expect_rings);
intel_detect_and_clear_missed_interrupts(device);
--
2.20.1
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