linux-kernel - [PATCH v3 0/3] New debugfs API for capturing CRC of frames

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Message-Id: <1469196645-3061-1-git-send-email-tomeu.vizoso@collabora.com>
Date:	Fri, 22 Jul 2016 16:10:42 +0200
From:	Tomeu Vizoso <tomeu.vizoso@...labora.com>
To:	linux-kernel@...r.kernel.org
Cc:	Daniel Vetter <daniel.vetter@...el.com>,
	Emil Velikov <emil.velikov@...labora.com>,
	Thierry Reding <thierry.reding@...il.com>,
	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	linux-doc@...r.kernel.org,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
	Jonathan Corbet <corbet@....net>,
	David Airlie <airlied@...ux.ie>
Subject: [PATCH v3 0/3] New debugfs API for capturing CRC of frames

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 exected 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

 Documentation/gpu/drm-uapi.rst        |    6 +
 drivers/gpu/drm/Makefile              |    3 +-
 drivers/gpu/drm/drm_crtc.c            |   12 +
 drivers/gpu/drm/drm_debugfs.c         |   36 +-
 drivers/gpu/drm/drm_debugfs_crc.c     |  370 ++++++++++++
 drivers/gpu/drm/drm_drv.c             |    9 +
 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_irq.c       |   69 ++-
 drivers/gpu/drm/i915/intel_display.c  |    1 +
 drivers/gpu/drm/i915/intel_drv.h      |    7 +
 drivers/gpu/drm/i915/intel_pipe_crc.c | 1001 +++++++++++++++++++++++++++++++++
 include/drm/drmP.h                    |    5 +
 include/drm/drm_crtc.h                |   41 ++
 include/drm/drm_debugfs_crc.h         |   74 +++
 16 files changed, 1621 insertions(+), 917 deletions(-)
 create mode 100644 drivers/gpu/drm/drm_debugfs_crc.c
 create mode 100644 drivers/gpu/drm/i915/intel_pipe_crc.c
 create mode 100644 include/drm/drm_debugfs_crc.h

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2.5.5