Commit 0976b3dc authored by Luca Coelho's avatar Luca Coelho Committed by Jani Nikula
Browse files

drm/i915/selftests: add local workqueue for SW fence selftest 



Instead of using a global workqueue for the SW fence selftest,
allocate a separate one temporarily only while running the test.

Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/313f4a713053c2b4896ced5b0e9ff456eb85fe57.1686231190.git.jani.nikula@intel.com
parent 848a4e5c

drivers/gpu/drm/i915/selftests/i915_sw_fence.c

+13 −3
Original line number Diff line number Diff line
@@ -523,12 +523,19 @@ static void task_ipc(struct work_struct *work) 
static int test_ipc(void *arg)

{

	struct task_ipc ipc;

	struct workqueue_struct *wq;

	int ret = 0;



	wq = alloc_workqueue("i1915-selftest", 0, 0);

	if (wq == NULL)

		return -ENOMEM;



	/* Test use of i915_sw_fence as an interprocess signaling mechanism */

	ipc.in = alloc_fence();

	if (!ipc.in)

		return -ENOMEM;

	if (!ipc.in) {

		ret = -ENOMEM;

		goto err_work;

	}

	ipc.out = alloc_fence();

	if (!ipc.out) {

		ret = -ENOMEM;
@@ -540,7 +547,7 @@ static int test_ipc(void *arg) 


	ipc.value = 0;

	INIT_WORK_ONSTACK(&ipc.work, task_ipc);

	schedule_work(&ipc.work);

	queue_work(wq, &ipc.work);



	wait_for_completion(&ipc.started);
@@ -563,6 +570,9 @@ static int test_ipc(void *arg) 
	free_fence(ipc.out);

err_in:

	free_fence(ipc.in);

err_work:

	destroy_workqueue(wq);



	return ret;

}