Hi,
this series basically takes the facility for continuously capturing CRCs of frames from the i915 driver and into the DRM core.
The idea is that test suites such as IGT use this information to check that frames that are expected to be identical, also have identical CRC values.
Other drivers for hardware that can provide frame CRCs (including eDP panels that support self-refresh) can easily implement the new callback and provide userspace with the CRC values.
Thanks,
Tomeu
Tomeu Vizoso (3): drm/i915/debugfs: Move out pipe CRC code drm: Add API for capturing frame CRCs drm/i915: Use new CRC debugfs API
drivers/gpu/drm/drm_crtc.c | 28 +- drivers/gpu/drm/drm_debugfs.c | 506 ++++++++++++++++++- drivers/gpu/drm/drm_internal.h | 10 + drivers/gpu/drm/i915/Makefile | 2 +- drivers/gpu/drm/i915/i915_debugfs.c | 892 +--------------------------------- drivers/gpu/drm/i915/i915_dma.c | 2 - drivers/gpu/drm/i915/i915_drv.h | 21 - drivers/gpu/drm/i915/i915_irq.c | 39 +- drivers/gpu/drm/i915/intel_display.c | 3 + drivers/gpu/drm/i915/intel_drv.h | 5 + drivers/gpu/drm/i915/intel_pipe_crc.c | 556 +++++++++++++++++++++ include/drm/drmP.h | 5 + include/drm/drm_crtc.h | 72 +++ 13 files changed, 1181 insertions(+), 960 deletions(-) create mode 100644 drivers/gpu/drm/i915/intel_pipe_crc.c