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igt/gem_wait: Test negative timeouts

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The user should be able to specify a negative timeout to indefinitely
wait upon a bo becoming idle.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2015-03-06 08:37:09 +00:00
parent 15559e6cb6
commit e23accf437
1 changed files with 12 additions and 0 deletions
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12
tests/gem_wait.c
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@ -111,6 +111,7 @@ static void render_timeout(int fd)
drm_intel_bufmgr *bufmgr;
struct intel_batchbuffer *batch;
int64_t timeout = ENOUGH_WORK_IN_SECONDS * NSEC_PER_SEC;
int64_t negative_timeout = -1;
int ret;
const bool do_signals = true; /* signals will seem to make the operation
* use less process CPU time */
@ -206,6 +207,17 @@ static void render_timeout(int fd)
igt_assert_eq(timeout, 0);
/* Now check that we can pass negative (infinite) timeouts. */
negative_timeout = -1;
for (i = 0; i < iter; i++)
blt_color_fill(batch, dst2, BUF_PAGES);
intel_batchbuffer_flush(batch);
igt_assert_eq(gem_bo_wait_timeout(fd, dst2->handle, &negative_timeout), 0);
igt_assert_eq(negative_timeout, 0);
igt_assert(gem_bo_busy(fd, dst2->handle) == false);
if (do_signals)
igt_stop_signal_helper();
drm_intel_bo_unreference(dst2);