[PATCH libdrm 0/2] Get active crtc list

[Arun R Murthy <arun.r.murthy@intel.com>]

drmModeGetResources() tells the system capability and not runtime
availability of the hardware resource.
DRM_IOCTL_MODE_GETCRTC only tells userspace which CRTCs are enabled
through KMS, not which are active in hardware. A pipe can be actively
scanning out without being enabled through the KMS state, so relying on
GETCRTC alone would report such a CRTC as free and assignable when it is
not.
Add new function drmModeGetCrtcList that enumerates the crtc list.

Arun R Murthy (2):
  xf86drmMode: add drmModeGetCrtcList() to enumerate available CRTCs
  tests/crtclist: add utility to inspect CRTC usage

 core-symbols.txt  |   2 +
 tests/crtclist.c  | 116 +++++++++++++++++++++++++++++++++++++++++++
 tests/meson.build |   9 ++++
 xf86drmMode.c     | 123 ++++++++++++++++++++++++++++++++++++++++++++++
 xf86drmMode.h     |  38 ++++++++++++++
 5 files changed, 288 insertions(+)
 create mode 100644 tests/crtclist.c

-- 
2.25.1