Check twice for the signal interrupting the execbuf, because the real world is messy.
References: https://bugs.freedesktop.org/show_bug.cgi?id=106695 Signed-off-by: Chris Wilson <[email protected]> Cc: Antonio Argenziano <[email protected]> --- lib/i915/gem_ring.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/lib/i915/gem_ring.c b/lib/i915/gem_ring.c index 0c061000c..0708c8a2e 100644 --- a/lib/i915/gem_ring.c +++ b/lib/i915/gem_ring.c @@ -55,7 +55,7 @@ __gem_measure_ring_inflight(int fd, unsigned int engine, enum measure_ring_flags struct drm_i915_gem_exec_object2 obj[2]; struct drm_i915_gem_execbuffer2 execbuf; const uint32_t bbe = MI_BATCH_BUFFER_END; - unsigned int count, last; + unsigned int last[2]= { -1, -1 }, count; struct itimerval itv; IGT_CORK_HANDLE(cork); @@ -85,7 +85,6 @@ __gem_measure_ring_inflight(int fd, unsigned int engine, enum measure_ring_flags itv.it_value.tv_usec = 10000; setitimer(ITIMER_REAL, &itv, NULL); - last = -1; count = 0; do { if (__execbuf(fd, &execbuf) == 0) { @@ -93,12 +92,13 @@ __gem_measure_ring_inflight(int fd, unsigned int engine, enum measure_ring_flags continue; } - if (last == count) + if (last[1] == count) break; /* sleep until the next timer interrupt (woken on signal) */ pause(); - last = count; + last[1] = last[0]; + last[0] = count; } while (1); igt_assert_eq(__execbuf(fd, &execbuf), -EINTR); -- 2.17.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
