[Intel-gfx] [PATCH v9 00/39] drm/i915: Implement HDCP2.2

[Ramalingam C]

This series enables the HDCP2.2 for I915. The sequence for HDCP2.2
authentication and encryption is implemented as a generic flow
between HDMI and DP. 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. To enable this client driver set the config variable
CONFIG_INTEL_MEI_HDCP.

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 strams.

Major changes in v9:
  - Mei_hdcp component binding status will impact I915_load [Daniel].
  - worker for sysfs unbind from daniel.
  - i915-mei_hdcp interface defined at i915_mei_hdcp_interface.h
  - Same check_work is used for HDCP1.4 and 2.2 link check. [Daniel]
  - seq_num to and from u32 is done through a helper. [Daniel]
  - hdcp_wired_protocol() is replaced with a const [Daniel]
  - Kdocs are added to mei_hdcp.c [Tomas]
  - i915 port -> mei_ddi_index conversion moved to mei_hdcp [Tomas]
  - SW tracking of the HDCP spec enabled is used [Daniel]

Hopefully covered all suggestions from Tomas and Daniel.

To ease the review process, series is hosted at
https://github.com/ramalingampc2008/drm-tip.git hdcp2_2_v9

Daniel Vetter (1):
  drivers/base: use a worker for sysfs unbind

Ramalingam C (36):
  drm/i915: Gathering the HDCP1.4 routines together
  drm: header for i915 - MEI_HDCP interface
  component: alloc component_match without any comp to match
  drm/i915: component master at i915 driver load
  drm/i915: Initialize HDCP2.2
  drm/i915: MEI interface definition
  drm/i915: hdcp1.4 CP_IRQ handling and SW encryption tracking
  drm/i915: Enable and Disable of HDCP2.2
  drm/i915: Implement HDCP2.2 receiver authentication
  drm: helper functions for hdcp2 seq_num to from u32
  drm/i915: Implement HDCP2.2 repeater authentication
  drm: HDCP2.2 link check related constants
  drm/i915: Implement HDCP2.2 link integrity check
  drm/i915: Handle HDCP2.2 downstream topology change
  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
  FOR_TEST: i915/Kconfig: Select mei_hdcp by I915
  FOR_TESTING_ONLY: debugfs: Excluding the LSPCon for HDCP1.4

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

 drivers/base/bus.c                    |   35 +-
 drivers/base/component.c              |   30 +
 drivers/gpu/drm/i915/i915_debugfs.c   |   10 +-
 drivers/gpu/drm/i915/i915_drv.c       |   86 ++-
 drivers/gpu/drm/i915/i915_drv.h       |    3 +
 drivers/gpu/drm/i915/intel_ddi.c      |    7 -
 drivers/gpu/drm/i915/intel_display.c  |   10 +
 drivers/gpu/drm/i915/intel_dp.c       |  315 ++++++++-
 drivers/gpu/drm/i915/intel_drv.h      |   74 ++-
 drivers/gpu/drm/i915/intel_hdcp.c     | 1178 +++++++++++++++++++++++++++++----
 drivers/gpu/drm/i915/intel_hdmi.c     |  192 +++++-
 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      |  807 ++++++++++++++++++++++
 drivers/misc/mei/hdcp/mei_hdcp.h      |  394 +++++++++++
 include/drm/drm_hdcp.h                |   26 +
 include/drm/i915_component.h          |   18 +
 include/drm/i915_mei_hdcp_interface.h |  132 ++++
 include/linux/component.h             |    2 +
 include/linux/mei_cl_bus.h            |    2 +
 23 files changed, 3207 insertions(+), 148 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/drm/i915_mei_hdcp_interface.h

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2.7.4