Do a quick selftest on in the interoperability of dma_fence_wait on a i915_gem_request.
Signed-off-by: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/i915_gem_request.c | 51 +++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c index 9ba17d3e35cb..2bde3fc8e8bf 100644 --- a/drivers/gpu/drm/i915/i915_gem_request.c +++ b/drivers/gpu/drm/i915/i915_gem_request.c @@ -1648,11 +1648,62 @@ static int igt_wait_request(void *ignore) return err; } +static int igt_fence_wait(void *ignore) +{ + struct drm_i915_private *i915; + struct drm_i915_gem_request *request; + int err = -ENOMEM; + + i915 = mock_device(); + if (!i915) + goto out; + + err = -EINVAL; + mutex_lock(&i915->drm.struct_mutex); + request = mock_request(i915->engine[RCS], + i915->kernel_context, + HZ); + if (!request) { + mutex_unlock(&i915->drm.struct_mutex); + goto out_device; + } + + i915_add_request(request); + mutex_unlock(&i915->drm.struct_mutex); + + if (dma_fence_is_signaled(&request->fence)) { + pr_err("fence signaled immediately!\n"); + goto out_device; + } + + if (dma_fence_wait_timeout(&request->fence, false, 1) != -ETIME) { + pr_err("fence wait success after submit (expected timeout)!\n"); + goto out_device; + } + + if (dma_fence_wait_timeout(&request->fence, false, 2 * HZ) <= 0) { + pr_err("fence wait timed out (expected success)!\n"); + goto out_device; + } + + if (!dma_fence_is_signaled(&request->fence)) { + pr_err("fence unsignaled after waiting!\n"); + goto out_device; + } + + err = 0; +out_device: + mock_device_free(i915); +out: + return err; +} + int i915_gem_request_selftest(void) { static const struct i915_subtest tests[] = { SUBTEST(igt_add_request), SUBTEST(igt_wait_request), + SUBTEST(igt_fence_wait), }; return i915_subtests(tests, NULL); -- 2.11.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
