From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ua1-x934.google.com (mail-ua1-x934.google.com [IPv6:2607:f8b0:4864:20::934]) by gabe.freedesktop.org (Postfix) with ESMTPS id B08666E3AC for ; Mon, 21 Jun 2021 18:30:42 +0000 (UTC) Received: by mail-ua1-x934.google.com with SMTP id r4so5795712uap.8 for ; Mon, 21 Jun 2021 11:30:42 -0700 (PDT) From: Mark Yacoub Date: Mon, 21 Jun 2021 18:30:38 +0000 Message-Id: <20210621183038.1030733-1-markyacoub@chromium.org> MIME-Version: 1.0 Subject: [igt-dev] [PATCH v3] tests/kms_vblank: Turn on hardware before testing invalid vblank. List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: igt-dev@lists.freedesktop.org Cc: seanpaul@chromium.org, petri.latvala@intel.com, Mark Yacoub List-ID: From: Mark Yacoub [Why] Before any hardware is on, the vblank is off and its ref counter is in an initialized state as each driver handles toggling it differently. Ioctl DRM_IOCTL_WAIT_VBLANK could return 0 such as on i915, or an invalid integer that doesn't mean much, such as on Zork running Kernel 5.4 due to the kernel workaround that increments the vblank ref count to prevent a get from enabling the interrupt. [How] For invalid_subtest(), active the CRTCs to turn the hardware on so DRM_IOCTL_WAIT_VBLANK returns something meaningful. Changes since v3: Turn on only 1 output instead of all. Changes since v2: 1. Updated Signed-off-by. Changes since v1: 1. Update Commit message 2. Rename variable p to pipe_number Signed-off-by: Mark Yacoub --- tests/kms_vblank.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/tests/kms_vblank.c b/tests/kms_vblank.c index 93b01eba..19284257 100644 --- a/tests/kms_vblank.c +++ b/tests/kms_vblank.c @@ -475,8 +475,13 @@ static void invalid_subtest(data_t *data, int fd) { union drm_wait_vblank vbl; unsigned long valid_flags; + igt_display_t* display = &data->display; + igt_output_t* output; - igt_display_require_output_on_pipe(&data->display, 0); + igt_display_require_output_on_pipe(display, 0); + igt_require(display->n_outputs); + output = &display->outputs[0]; + prepare_crtc(data, fd, output); /* First check all is well with a simple query */ memset(&vbl, 0, sizeof(vbl)); @@ -511,6 +516,8 @@ static void invalid_subtest(data_t *data, int fd) vbl.request.type |= _DRM_VBLANK_SECONDARY; vbl.request.type |= _DRM_VBLANK_FLAGS_MASK; igt_assert_eq(wait_vblank(fd, &vbl), -EINVAL); + + cleanup_crtc(data, fd, output); } igt_main -- 2.32.0.288.g62a8d224e6-goog _______________________________________________ igt-dev mailing list igt-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/igt-dev