From: Robert Foss <robert.foss@xxxxxxxxxxxxx>
Added function kmstest_get_vbl_flag() to igt_kms.
This function formats a pipe_id into the format
expected by DRM while processing DRM_IOCTL_WAIT_VBLANK.
Signed-off-by: Robert Foss <robert.foss@xxxxxxxxxxxxx>
---
lib/igt_kms.c | 19 +++++++++++++++++++
lib/igt_kms.h | 1 +
2 files changed, 20 insertions(+)
diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 1113f57..0e781ef 100644
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -2562,3 +2562,22 @@ void igt_reset_connectors(void)
close(fd);
}
}
+
+/**
+ * kmstest_get_vbl_flag:
+ *
+ * Convert a pipe id into the flag representation
+ * expected in DRM while processing DRM_IOCTL_WAIT_VBLANK.
+ */
+uint32_t kmstest_get_vbl_flag(uint32_t pipe_id)
+{
+ if (pipe_id == 0)
+ return 0;
+ else if (pipe_id == 1)
+ return _DRM_VBLANK_SECONDARY;
+ else {
+ uint32_t pipe_flag = pipe_id << 1;
+ igt_assert(!(pipe_flag & ~DRM_VBLANK_HIGH_CRTC_MASK));
+ return pipe_flag;
+ }
+}
diff --git a/lib/igt_kms.h b/lib/igt_kms.h
index b8f6dd8..7359d26 100644
--- a/lib/igt_kms.h
+++ b/lib/igt_kms.h
@@ -380,6 +380,7 @@ void igt_wait_for_vblank(int drm_fd, enum pipe pipe);
void igt_enable_connectors(void);
void igt_reset_connectors(void);
+uint32_t kmstest_get_vbl_flag(uint32_t pipe_id);
#define EDID_LENGTH 128
const unsigned char* igt_kms_get_base_edid(void);
--
2.7.4
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
