[Intel-gfx] [PATCH v5 00/40] drm/i915: Implement HDCP2.2

[Ramalingam C]

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 Daniel vetter for reviewing v4.

Major Changes in v5:
  - Component is used for I915-MEI HDCP interface [Daniel].
  - Patches are restructured for bisecting.
  - Lookup tables are used for DP and HDMI HDCP2.2 messages [Daniel].

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

Complete series is hosted at
	https://github.com/ramalingampc2008/drm-tip.git hdcp2_2_v5

Ramalingam C (39):
  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 HDCP2.2 related variables
  drm/i915: Define Intel HDCP2.2 registers
  drm/i915: Initialize HDCP2.2 and its MEI interface
  drm/i915: Schedule hdcp_check_link in _intel_hdcp_enable
  drm/i915: Pullout the bksv read and validation
  drm/i915: Enable superior HDCP ver that is capable
  drm/i915: Enable HDCP1.4 incase of HDCP2.2 failure
  drm/i915: Implement HDCP2.2 Enable and Disable
  drm/i915: Enable and Disable HDCP2.2 port encryption
  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/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
  misc/mei/hdcp: Client driver for HDCP application
  misc/mei/hdcp: Component framework for I915 Interface
  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

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

 drivers/gpu/drm/i915/Kconfig         |    1 +
 drivers/gpu/drm/i915/i915_drv.h      |    5 +
 drivers/gpu/drm/i915/i915_reg.h      |   34 +
 drivers/gpu/drm/i915/intel_display.c |    7 +-
 drivers/gpu/drm/i915/intel_dp.c      |  345 ++++++++-
 drivers/gpu/drm/i915/intel_drv.h     |   88 ++-
 drivers/gpu/drm/i915/intel_hdcp.c    | 1289 ++++++++++++++++++++++++++++++++--
 drivers/gpu/drm/i915/intel_hdmi.c    |  190 ++++-
 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     |  862 +++++++++++++++++++++++
 drivers/misc/mei/hdcp/mei_hdcp.h     |  408 +++++++++++
 include/drm/drm_dp_helper.h          |   51 ++
 include/drm/drm_hdcp.h               |  232 ++++++
 include/drm/i915_component.h         |   88 +++
 include/linux/mei_hdcp.h             |  100 +++
 19 files changed, 3710 insertions(+), 92 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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2.7.4