Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> 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>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> ---
> 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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