linux-kernel - [PATCH v1 0/3] New debugfs API for capturing CRC of frames

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Message-Id: <1466507202-23222-1-git-send-email-tomeu.vizoso@collabora.com>
Date:	Tue, 21 Jun 2016 13:06:39 +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>,
	Tomeu Vizoso <tomeu.vizoso@...labora.com>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
	David Airlie <airlied@...ux.ie>
Subject: [PATCH v1 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 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

-- 
2.5.5