[PATCH i-g-t v2 0/7] igt: Add support for testing writeback connectors

[Liviu Dudau]

We're trying to introduce support for writeback connectors, a way to
expose in DRM the hardware functionality from display engines that
allows to write back into memory the result of the DE's composition
of supported planes.

Generic DRM support is available here [1] and will be merged once
this patchset gets approved for inclusion into igt. VC4 support
for writeback is added here [2] and for mali-dp is added here [3].

Changelog:
 - v2: Rebased on top of a844ccbdbab9fd16c37de81281c6281bc800e97a
 - v1: Original (re)submission [4]

Many thanks,
Liviu


[1] https://lists.freedesktop.org/archives/dri-devel/2017-May/141796.html
[2] https://lists.freedesktop.org/archives/dri-devel/2017-June/143337.html
[3] https://lists.freedesktop.org/archives/dri-devel/2017-May/141799.html
[4] https://lists.freedesktop.org/archives/intel-gfx/2017-July/132344.html


Brian Starkey (7):
  igt: lib/igt_crc: Split out CRC functionality
  lib/igt_kms: Add writeback support in lib/
  kms_writeback: Add initial writeback tests
  lib: Add function to hash a framebuffer
  kms_writeback: Add writeback-check-output
  lib/igt_kms: Add igt_output_clone_pipe for cloning
  kms_writeback: Add tests using a cloned output

 lib/Makefile.sources              |   2 +
 lib/igt_aux.c                     |   1 +
 lib/igt_chamelium.h               |   1 +
 lib/igt_crc.c                     | 563 ++++++++++++++++++++++++++++++++++++++
 lib/igt_crc.h                     | 125 +++++++++
 lib/igt_debugfs.c                 | 547 ------------------------------------
 lib/igt_debugfs.h                 |  81 ------
 lib/igt_fb.c                      |  65 +++++
 lib/igt_fb.h                      |   5 +
 lib/igt_kms.c                     | 172 +++++++++---
 lib/igt_kms.h                     |  26 ++
 tests/Makefile.sources            |   1 +
 tests/chamelium.c                 |   1 +
 tests/kms_atomic_transition.c     |   1 +
 tests/kms_ccs.c                   |   1 +
 tests/kms_chv_cursor_fail.c       |   1 +
 tests/kms_crtc_background_color.c |   1 +
 tests/kms_cursor_crc.c            |   1 +
 tests/kms_cursor_legacy.c         |   1 +
 tests/kms_draw_crc.c              |   1 +
 tests/kms_fbc_crc.c               |   1 +
 tests/kms_flip_tiling.c           |   1 +
 tests/kms_frontbuffer_tracking.c  |   1 +
 tests/kms_mmap_write_crc.c        |   1 +
 tests/kms_mmio_vs_cs_flip.c       |   1 +
 tests/kms_pipe_color.c            |   1 +
 tests/kms_pipe_crc_basic.c        |   1 +
 tests/kms_plane.c                 |   1 +
 tests/kms_plane_lowres.c          |   1 +
 tests/kms_plane_multiple.c        |   1 +
 tests/kms_plane_scaling.c         |   1 +
 tests/kms_pwrite_crc.c            |   1 +
 tests/kms_rotation_crc.c          |   1 +
 tests/kms_universal_plane.c       |   1 +
 tests/kms_writeback.c             | 541 ++++++++++++++++++++++++++++++++++++
 tools/intel_display_crc.c         |   1 +
 36 files changed, 1487 insertions(+), 666 deletions(-)
 create mode 100644 lib/igt_crc.c
 create mode 100644 lib/igt_crc.h
 create mode 100644 tests/kms_writeback.c

-- 
2.13.2