This patch adds a test where a low priority batch is going to be declared hung while a preemption is pending. The test wants to verify that a 'bad' low priority batch will not disrupt the execution of a high priority context and that the driver does due diligence in managing a reset while a preemption is pending.
Cc: Chris Wilson <[email protected]> Cc: Michal Winiarski <[email protected]> Signed-off-by: Antonio Argenziano <[email protected]> --- tests/gem_exec_schedule.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/tests/gem_exec_schedule.c b/tests/gem_exec_schedule.c index 1e6b0ae7..ae44a6c0 100644 --- a/tests/gem_exec_schedule.c +++ b/tests/gem_exec_schedule.c @@ -356,7 +356,8 @@ static void promotion(int fd, unsigned ring) munmap(ptr, 4096); } -#define NEW_CTX 0x1 +#define NEW_CTX (0x1 << 0) +#define HANG_LP (0x1 << 1) static void preempt(int fd, unsigned ring, unsigned flags) { uint32_t result = gem_create(fd, 4096); @@ -370,6 +371,9 @@ static void preempt(int fd, unsigned ring, unsigned flags) ctx[HI] = gem_context_create(fd); gem_context_set_priority(fd, ctx[HI], MAX_PRIO); + if (flags & HANG_LP) + igt_spin_batch_new(fd, ctx[LO], ring, 0, false); + for (int n = 0; n < 16; n++) { if (flags & NEW_CTX) { gem_context_destroy(fd, ctx[LO]); @@ -1023,6 +1027,12 @@ igt_main igt_subtest_f("preempt-self-%s", e->name) preempt_self(fd, e->exec_id | e->flags); + + igt_subtest_f("preempt-bad-%s", e->name) { + igt_stop_hang_detector(); + preempt(fd, e->exec_id | e->flags, NEW_CTX | HANG_LP); + igt_fork_hang_detector(fd); + } } igt_subtest_f("deep-%s", e->name) -- 2.14.2 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
