diff options
| author | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2019-04-23 17:15:58 +0300 |
|---|---|---|
| committer | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2019-04-24 10:55:43 +0300 |
| commit | 5e7519121de3c0e97ec27d33d6164278e86e75c5 (patch) | |
| tree | fd1296da4b1d4db235be3f92958e408245769ce5 /lib/igt_dummyload.c | |
| parent | 504367d33b787de2ba8e007a5b620cfd6f0b3074 (diff) | |
lib/igt_dummyload: Introduce igt_spin_reset
Libify resetting a spin for reuse.
v2: use also in perf_pmu
v3: s/cmd_spin/cmd_precondition
v4: remove early return for !spin (Chris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'lib/igt_dummyload.c')
| -rw-r--r-- | lib/igt_dummyload.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/igt_dummyload.c b/lib/igt_dummyload.c index 1d57a53c..65957ed1 100644 --- a/lib/igt_dummyload.c +++ b/lib/igt_dummyload.c @@ -260,6 +260,8 @@ emit_recursive_batch(igt_spin_t *spin, obj[SCRATCH].flags = EXEC_OBJECT_PINNED; obj[BATCH].flags = EXEC_OBJECT_PINNED; + spin->cmd_precondition = *spin->batch; + return fence_fd; } @@ -367,6 +369,21 @@ void igt_spin_set_timeout(igt_spin_t *spin, int64_t ns) } /** + * igt_spin_reset: + * @spin: spin state from igt_spin_new() + * + * Reset the state of spin, allowing its reuse. + */ +void igt_spin_reset(igt_spin_t *spin) +{ + if (igt_spin_has_poll(spin)) + spin->poll[SPIN_POLL_START_IDX] = 0; + + *spin->batch = spin->cmd_precondition; + __sync_synchronize(); +} + +/** * igt_spin_end: * @spin: spin state from igt_spin_new() * |