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tests/kms_fbc_crc: increase the FBC wait timeout

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Now that we moved to the frontbuffer tracking scheme, it may take a
long time for FBC to be updated after it is invalidated: 300ms is not
enough anymore.

The problem starts when i915_gem_execbuffer2() indirectly calls
intel_fb_obj_invalidate(), which disables FBC. After this, FBC only
gets reenabled when i915_gem_retire_work_handler() happens and
indirectly calls intel_frontbuffer_flush(). Notice that while FBC is
not yet enabled, the screen contents are correct, so this shouldn't
really be a bug.

Previous versions of this patch were replacing the gem_bo_busy() calls
with gem_sync(), but after some discussion we concluded this was not
the correct way to handle the problem, so let's just increase the
timeout so we can kill those subtest failures.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
This commit is contained in:
Paulo Zanoni 2015-05-05 18:05:54 -03:00
parent 8c3ac50b00
commit 036401d42c
1 changed files with 1 additions and 1 deletions
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2
tests/kms_fbc_crc.c
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@ -204,7 +204,7 @@ static bool fbc_enabled(data_t *data)
static bool wait_for_fbc_enabled(data_t *data)
{
return igt_wait(fbc_enabled(data), 300, 30);
return igt_wait(fbc_enabled(data), 3000, 30);
}
static void test_crc(data_t *data, enum test_mode mode)