Based on HDCP1.4 framework introduced by Sean Paul, this series
implements the HDCP2.2 in I915.

The sequence for HDCP2.2 authentication and encryption is implemented
in I915. Encoder specific implementations are moved into hdcp2_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

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.

Yes its bit lengthy series. Please tolerate. Thanks

Known TO-DOs:
        - Improving the commit messages.
        - Improving the documentation.
        - Not so happy about i/f between I915 and MEI_HDCP drivers :(

Ramalingam C (41):
  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: Add KBuild for mei hdcp driver
  misc/mei/hdcp: Verify mei client device status
  misc/mei/hdcp: Get & Put for mei cl_device
  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 verifcation 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: Async execution of hdcp authentication
  drm/i915: wrapping all hdcp var into intel_hdcp
  drm/i915: wait for cp_irq
  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: Enable HDCP version that is best capable
  drm/i915: Enable HDCP1.4 incase of HDCP2.2 failure
  drm/i915: Initialize HDCP2.2 and its MEI interface
  drm/i915: Implement gmbus 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
  drm/i915: Invoke check link on CP_IRQ of DP

Tomas Winkler (2):
  mei: bus: whitelist hdcp client
  mei: me: add gemini lake devices ids

 drivers/gpu/drm/i915/i915_drv.h      |    7 +
 drivers/gpu/drm/i915/i915_reg.h      |  123 ++++
 drivers/gpu/drm/i915/intel_display.c |    8 +-
 drivers/gpu/drm/i915/intel_dp.c      |  367 ++++++++++-
 drivers/gpu/drm/i915/intel_drv.h     |  116 +++-
 drivers/gpu/drm/i915/intel_hdcp.c    | 1151 +++++++++++++++++++++++++++++++---
 drivers/gpu/drm/i915/intel_hdmi.c    |  209 +++++-
 drivers/gpu/drm/i915/intel_i2c.c     |  124 +++-
 drivers/misc/mei/Kconfig             |    6 +
 drivers/misc/mei/Makefile            |    2 +
 drivers/misc/mei/bus-fixup.c         |   16 +
 drivers/misc/mei/hw-me-regs.h        |    2 +
 drivers/misc/mei/mei_hdcp.c          |  935 +++++++++++++++++++++++++++
 drivers/misc/mei/mei_hdcp.h          |  566 +++++++++++++++++
 drivers/misc/mei/pci-me.c            |    2 +
 include/drm/drm_dp_helper.h          |   59 ++
 include/drm/drm_hdcp.h               |  271 ++++++++
 include/linux/mei_hdcp.h             |  215 +++++++
 18 files changed, 4066 insertions(+), 113 deletions(-)
 create mode 100644 drivers/misc/mei/mei_hdcp.c
 create mode 100644 drivers/misc/mei/mei_hdcp.h
 create mode 100644 include/linux/mei_hdcp.h


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