[Intel-gfx] [PATCH i-g-t 2/3] igt_kms: Change the max number of pipes to 6

[Lyude]

Unfortunately the assumption that we only have 6 display pipes available
is specific to Intel, and seems to be breaking igt_display_init() on
both radeon and nouveau since this causes us not to leave enough space
in the igt_display_t struct to hold information for all 6 pipes.

So, up the max to 6. As well, add IGT_MAX_PIPES and use that instead
since this is no longer specific to Intel. We also leave I915_MAX_PIPES
defined as 3 so as to not break existing tests relying on this.

Signed-off-by: Lyude <lyude at redhat.com>
---
 lib/igt_kms.h | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index 95d81c3..0ea2454 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -46,7 +46,10 @@
  * @PIPE_A: First crtc.
  * @PIPE_B: Second crtc.
  * @PIPE_C: Third crtc.
- * @I915_MAX_PIPES: Max number of pipes allowed.
+ * @PIPE_D: Fourth crtc.
+ * @PIPE_E: Fifth crtc.
+ * @PIPE_F: Sixth crtc.
+ * @IGT_MAX_PIPES: Max number of pipes allowed.
  */
 enum pipe {
         PIPE_NONE = -1,
@@ -54,10 +57,23 @@ enum pipe {
         PIPE_A = 0,
         PIPE_B,
         PIPE_C,
-        I915_MAX_PIPES
+	PIPE_D,
+	PIPE_E,
+	PIPE_F,
+	IGT_MAX_PIPES,
 };
 const char *kmstest_pipe_name(enum pipe pipe);
 
+/**
+ * I915_MAX_PIPES:
+ *
+ * The max number of pipes on i915 devices. This should only be used for tests
+ * which are guaranteed to only be used on intel hardware. All other tests
+ * should use @IGT_MAX_PIPES and/or check the number of reported pipes on the
+ * hardware.
+ */
+#define I915_MAX_PIPES 3
+
 /* We namespace this enum to not conflict with the Android i915_drm.h */
 enum igt_plane {
 	IGT_PLANE_1 = 0,
@@ -310,7 +326,7 @@ struct igt_display {
 	int n_outputs;
 	unsigned long pipes_in_use;
 	igt_output_t *outputs;
-	igt_pipe_t pipes[I915_MAX_PIPES];
+	igt_pipe_t pipes[IGT_MAX_PIPES];
 	bool has_universal_planes;
 	bool has_cursor_plane;
 	bool is_atomic;
-- 
2.7.4