[PATCH v4 00/41] drm/i915: Implement HDCP2.2

[Ramalingam C <ramalingam.c@intel.com>]

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
ME FW.

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 Usyskin, Alexander and Uma shankar for the review of v3.
Thanks Daniel vetter for guiding me to test and confirm that there is no
locking issue with respect to notifier usage between I915 and MEI_HDCP.

Major Changes in v4:
  - GMBus Changes to implement the burst read as generic
	[Jani, Ville and Daniel]
  - Polling is added for extra Notifier notification when I915 and
	MEI_HDCP are modules.
  - Comment and style issues and typos are fixed [Uma and Alexander]
  - INTEL_MEI_HDCP, INTEL_MEI_ME and INTEL_MEI are selected by I915.
  - Fixed the #if in include/linux/mei_hdcp.h for build issues.

GMBus changes are added here for completeness of the series. They are
in review at https://patchwork.freedesktop.org/series/41632/ also.

Ramalingam C (40):
  drm: hdcp2.2 authentication msg definitions
  drm: HDMI and DP specific HDCP2.2 defines
  misc/mei/hdcp: Client driver for HDCP application
  misc/mei/hdcp: Notifier chain for mei cldev state change
  misc/mei/hdcp: Define ME FW interface for HDCP2.2
  linux/mei: Header for mei_hdcp driver interface
  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
  drm/i915: wrapping all hdcp var into intel_hdcp
  drm/i915: Define HDCP2.2 related variables
  drm/i915: Define Intel HDCP2.2 registers
  drm/i915: Wrappers for mei HDCP2.2 services
  drm/i915: Implement HDCP2.2 receiver authentication
  drm/i915: Implement HDCP2.2 repeater authentication
  drm/i915: Enable and Disable HDCP2.2 port encryption
  drm/i915: Implement HDCP2.2 En/Dis-able
  drm/i915: Implement HDCP2.2 link integrity check
  drm/i915: Handle HDCP2.2 downstream topology change
  drm/i915: Pullout the bksv read and validation
  drm/i915: Initialize HDCP2.2 and its MEI interface
  drm/i915: Schedule hdcp_check_link in _intel_hdcp_enable
  drm/i915: Enable superior HDCP ver that is capable
  drm/i915: Enable HDCP1.4 incase of HDCP2.2 failure
  drm/i915: hdcp_check_link only on CP_IRQ
  drm/i915: Check HDCP 1.4 and 2.2 link on CP_IRQ
  drm/i915/gmbus: Increase the Bytes per Rd/Wr Op
  drm/i915/gmbus: Enable burst read
  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

Tomas Winkler (1):
  mei: bus: whitelist hdcp client

 drivers/gpu/drm/i915/Kconfig         |    1 +
 drivers/gpu/drm/i915/i915_drv.h      |    3 +
 drivers/gpu/drm/i915/i915_reg.h      |   34 ++
 drivers/gpu/drm/i915/intel_display.c |    7 +-
 drivers/gpu/drm/i915/intel_dp.c      |  370 +++++++++++-
 drivers/gpu/drm/i915/intel_drv.h     |   88 ++-
 drivers/gpu/drm/i915/intel_hdcp.c    | 1096 ++++++++++++++++++++++++++++++++--
 drivers/gpu/drm/i915/intel_hdmi.c    |  189 +++++-
 drivers/gpu/drm/i915/intel_i2c.c     |   71 ++-
 drivers/misc/mei/Kconfig             |    7 +
 drivers/misc/mei/Makefile            |    2 +
 drivers/misc/mei/bus-fixup.c         |   16 +
 drivers/misc/mei/hdcp/Makefile       |    6 +
 drivers/misc/mei/hdcp/mei_hdcp.c     |  817 +++++++++++++++++++++++++
 drivers/misc/mei/hdcp/mei_hdcp.h     |  415 +++++++++++++
 include/drm/drm_dp_helper.h          |   51 ++
 include/drm/drm_hdcp.h               |  232 +++++++
 include/linux/mei_hdcp.h             |  232 +++++++
 18 files changed, 3546 insertions(+), 91 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

-- 
2.7.4

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