A trivial kselftest to submit a request and wait upon it. Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/selftests/i915_gem_request.c | 44 +++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_request.c b/drivers/gpu/drm/i915/selftests/i915_gem_request.c index 233c0bdb9e82..ef72b32f9bc3 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_request.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_request.c @@ -47,10 +47,54 @@ static int igt_add_request(void *arg) return err; } +static int igt_wait_request(void *arg) +{ + const long T = HZ / 4; + struct drm_i915_private *i915 = arg; + struct drm_i915_gem_request *request; + int err = -EINVAL; + + mutex_lock(&i915->drm.struct_mutex); + request = mock_request(i915->engine[RCS], i915->kernel_context, T); + if (!request) { + err = -ENOMEM; + goto out_unlock; + } + + i915_add_request(request); + + if (i915_gem_request_completed(request)) { + pr_err("request completed immediately!\n"); + goto out_unlock; + } + + if (i915_wait_request(request, I915_WAIT_LOCKED, T / 2) != -ETIME) { + pr_err("request wait succeeded (expected tiemout!)\n"); + goto out_unlock; + } + + if (i915_wait_request(request, I915_WAIT_LOCKED, T) == -ETIME) { + pr_err("request wait timed out!\n"); + goto out_unlock; + } + + if (!i915_gem_request_completed(request)) { + pr_err("request not complete after waiting!\n"); + goto out_unlock; + } + + err = 0; +out_unlock: + mock_device_flush(i915); + mutex_unlock(&i915->drm.struct_mutex); + return err; +} + int i915_gem_request_mock_selftests(void) { static const struct i915_subtest tests[] = { SUBTEST(igt_add_request), + SUBTEST(igt_wait_request), }; struct drm_i915_private *i915; int err; -- 2.11.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx