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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: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/313f4a713053c2b4896ced5b0e9ff456eb85fe57.1686231190.git.jani.nikula@intel.com
This commit is contained in:
Luca Coelho 2023-06-08 16:35:46 +03:00 committed by Jani Nikula
parent 848a4e5c09
commit 0976b3dc02
1 changed files with 13 additions and 3 deletions
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16
drivers/gpu/drm/i915/selftests/i915_sw_fence.c
View File

@ -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;
}