[PATCH v7 00/39] drm/i915: Implement HDCP2.2

Ramalingam C ramalingam.c at intel.com
Tue Sep 25 15:20:23 UTC 2018

The sequence for HDCP2.2 authentication and encryption is implemented
in I915. Encoder specific implementations are moved into hdcp_shim.

Intel HWs supports HDCP2.2 through ME FW. Hence this series
introduces a client driver for mei bus, so that for HDCP2.2
authentication, HDCP2.2 stack in I915 can avail the services from

DRM_I915 selects INTEL_MEI_HDCP, which selects INTEL_MEI_ME and
INTEL_MEI. If we are interested in disabling the MEI_HDCP and MEI Bus
then we need an option to disable the HDCP2.2 in I915
(like DRM_I915_HDCP2.2!?). Till then they are binded.

Userspace interface remains unchanged as version agnostic. When
userspace request for HDCP enable, Kernel will detect the HDCP source
and sink's HDCP version(1.4/2.2)capability and enable the best capable
version for that combination.

This series enables the HDCP2.2 for Type0 content streams.
Thanks a lot for Daniel Vetter and Sean Paul for reviewing v5.

Major Changes in v7:
  - I915 driver unregister is added to master unbind [Daniel].
  - Proposes commiting the content protection req without modeset
  - Fixed a regression on DP HDCP2.2. [Ankit]
  - Patch for enabling the  MEI_HDCP is added for Testing only. [Daniel]
  - mei patch series is realigned for bisecting.
  - Few review comments are addressed.

For review convenience v7 of complete series is hosted at
	https://github.com/ramalingampc2008/drm-tip.git hdcp2_2_v7

Ramalingam C (37):
  drm: hdcp2.2 authentication msg definitions
  drm: HDMI and DP specific HDCP2.2 defines
  linux/mei: Header for mei_hdcp driver interface
  drm/i915: wrapping all hdcp var into intel_hdcp
  drm/i915: Define Intel HDCP2.2 registers
  component: alloc component_match without any comp to match
  drm/i915: component master at i915 driver load
  drm/i915: Initialize HDCP2.2 and its MEI interface
  drm/i915: Pullout the bksv read and validation
  drm/i915: Enable and Disable of HDCP2.2
  drm/i915: Implement HDCP2.2 receiver authentication
  drm/i915: Implement HDCP2.2 repeater authentication
  drm/i915: Implement HDCP2.2 link integrity check
  drm/i915: Handle HDCP2.2 downstream topology change
  drm/i915: hdcp_check_link only on CP_IRQ
  drm/i915: Check HDCP 1.4 and 2.2 link on CP_IRQ
  drm/i915: Implement the HDCP2.2 support for DP
  drm/i915: Implement the HDCP2.2 support for HDMI
  drm/i915: Add HDCP2.2 support for DP connectors
  drm/i915: Add HDCP2.2 support for HDMI connectors
  misc/mei/hdcp: Client driver for HDCP application
  misc/mei/hdcp: Define ME FW interface for HDCP2.2
  misc/mei/hdcp: Initiate Wired HDCP2.2 Tx Session
  misc/mei/hdcp: Verify Receiver Cert and prepare km
  misc/mei/hdcp: Verify H_prime
  misc/mei/hdcp: Store the HDCP Pairing info
  misc/mei/hdcp: Initiate Locality check
  misc/mei/hdcp: Verify L_prime
  misc/mei/hdcp: Prepare Session Key
  misc/mei/hdcp: Repeater topology verification and ack
  misc/mei/hdcp: Verify M_prime
  misc/mei/hdcp: Enabling the HDCP authentication
  misc/mei/hdcp: Closing wired HDCP2.2 Tx Session
  misc/mei/hdcp: Component framework for I915 Interface
  drm/i915: Commit CP without modeset
  drm/i915: Fix KBL HDCP2.2 encrypt status signalling
  misc/Kconfig: Enabling mei_hdcp by default

Tomas Winkler (2):
  mei: bus: whitelist hdcp client
  mei: bus: export to_mei_cl_device for mei client device drivers

 drivers/base/component.c             |   30 +
 drivers/gpu/drm/i915/i915_drv.c      |   86 ++-
 drivers/gpu/drm/i915/i915_drv.h      |    3 +
 drivers/gpu/drm/i915/i915_reg.h      |   32 +
 drivers/gpu/drm/i915/intel_ddi.c     |    7 -
 drivers/gpu/drm/i915/intel_display.c |   16 +-
 drivers/gpu/drm/i915/intel_dp.c      |  350 ++++++++-
 drivers/gpu/drm/i915/intel_drv.h     |   97 ++-
 drivers/gpu/drm/i915/intel_hdcp.c    | 1290 ++++++++++++++++++++++++++++++----
 drivers/gpu/drm/i915/intel_hdmi.c    |  193 ++++-
 drivers/misc/mei/Kconfig             |    8 +
 drivers/misc/mei/Makefile            |    2 +
 drivers/misc/mei/bus-fixup.c         |   16 +
 drivers/misc/mei/bus.c               |    1 -
 drivers/misc/mei/hdcp/Makefile       |    7 +
 drivers/misc/mei/hdcp/mei_hdcp.c     |  829 ++++++++++++++++++++++
 drivers/misc/mei/hdcp/mei_hdcp.h     |  366 ++++++++++
 include/drm/drm_dp_helper.h          |   51 ++
 include/drm/drm_hdcp.h               |  235 +++++++
 include/drm/i915_component.h         |   76 ++
 include/linux/component.h            |    2 +
 include/linux/mei_cl_bus.h           |    2 +
 include/linux/mei_hdcp.h             |   76 ++
 23 files changed, 3596 insertions(+), 179 deletions(-)
 create mode 100644 drivers/misc/mei/hdcp/Makefile
 create mode 100644 drivers/misc/mei/hdcp/mei_hdcp.c
 create mode 100644 drivers/misc/mei/hdcp/mei_hdcp.h
 create mode 100644 include/linux/mei_hdcp.h


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