[igt-dev] [PATCH i-g-t 02/11] lib/igt_kms: Add igt_require_pipe() function

[Mohammed Khajapasha <mohammed.khajapasha@intel.com>]

Add igt_require_pipe() fn to check whether a pipe is enabled or not

Signed-off-by: Mohammed Khajapasha <mohammed.khajapasha@intel.com>
---
 lib/igt_kms.c | 17 +++++++++++++++++
 lib/igt_kms.h | 13 +++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 5a80d17f..5b68ffda 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -1873,6 +1873,23 @@ void igt_display_reset(igt_display_t *display)
 static void igt_fill_plane_format_mod(igt_display_t *display, igt_plane_t *plane);
 static void igt_fill_display_format_mod(igt_display_t *display);
 
+/*
+ * igt_require_pipe:
+ * @display: pointer to igt_display_t
+ * @pipe: pipe which need to check
+ *
+ * Skip a (sub-)test if the pipe not enabled.
+ *
+ * Should be used everywhere where a test checks pipe and skip
+ * test when pipe is not enabled.
+ */
+void igt_require_pipe(igt_display_t *display, enum pipe pipe)
+{
+	igt_skip_on_f(!display->pipes[pipe].enabled,
+			"Pipe %s does not exist or not enabled\n",
+			kmstest_pipe_name(pipe));
+}
+
 /* Get crtc mask for a pipe using crtc id */
 static int
 __get_crtc_mask_for_pipe(drmModeRes *resources, igt_pipe_t *pipe)
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index f9bbddc5..7109c9a5 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -858,4 +858,17 @@ int igt_connector_sysfs_open(int drm_fd,
 			     drmModeConnector *connector);
 uint32_t igt_reduce_format(uint32_t format);
 
+/*
+ * igt_require_pipe:
+ * @display: pointer to igt_display_t
+ * @pipe: pipe which need to check
+ *
+ * Skip a (sub-)test if the pipe not enabled.
+ *
+ * Should be used everywhere where a test checks pipe and skip
+ * test when pipe is not enabled.
+ */
+void igt_require_pipe(igt_display_t *display,
+		enum pipe pipe);
+
 #endif /* __IGT_KMS_H__ */
-- 
2.24.1

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