[PATCH v12 00/38] drm/i915: Implement HDCP2.2

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

This series enables the HDCP2.2 Type 0 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 streams.

Test-with: <1549566452-30175-1-git-send-email-ramalingam.c@intel.com>

Major changes in v12
  - hdcp disable from unbind is removed.
  - hdcp component init and del are moved away from conenctor ops.
  - Review comemnts from Tomas are addressed. [Tomas]
  - Collected the r-bs and Acks given for v11.
  - ICL mei dev id patch is cherry-picked from
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git  char-misc-linus
  - Changes for component framework are merged into drm-tip already.

To ease the review process, series is hosted at
https://github.com/ramalingampc2008/drm-tip.git hdcp2_2_v12

Daniel Vetter (1):
  drm/doc: document recommended component helper usage

Ramalingam C (34):
  drm/i915: Gathering the HDCP1.4 routines together
  drm: header for i915 - MEI_HDCP interface
  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 period
  drm/i915: Implement HDCP2.2 link integrity check
  drm/i915: Handle HDCP2.2 downstream topology change
  drm: removing the DP Errata msg and its msg id
  drm/i915: Implement the HDCP2.2 support for DP
  drm/i915: Implement the HDCP2.2 support for HDMI
  drm/i915: CP_IRQ handling for DP HDCP2.2 msgs
  drm/i915: Fix KBL HDCP2.2 encrypt status signalling
  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
  FOR_TEST_ONLY: i915/Kconfig: Select mei_hdcp by I915
  FOR_TESTING_ONLY: debugfs: Excluding the LSPCon for HDCP1.4
  FOR_TESTING_ONLY: ICL: Limit clk to <= 340MHz

Tomas Winkler (3):
  mei: bus: whitelist hdcp client
  mei: bus: export to_mei_cl_device for mei client device drivers
  mei: me: add ice lake point device id.

 Documentation/driver-api/component.rst |    2 +
 Documentation/gpu/drm-internals.rst    |    5 +
 drivers/gpu/drm/drm_drv.c              |   14 +
 drivers/gpu/drm/i915/i915_debugfs.c    |   10 +-
 drivers/gpu/drm/i915/i915_drv.c        |    1 +
 drivers/gpu/drm/i915/i915_drv.h        |    7 +
 drivers/gpu/drm/i915/intel_connector.c |    2 +
 drivers/gpu/drm/i915/intel_display.c   |    4 +
 drivers/gpu/drm/i915/intel_dp.c        |  350 ++++++++-
 drivers/gpu/drm/i915/intel_drv.h       |   83 ++-
 drivers/gpu/drm/i915/intel_hdcp.c      | 1242 +++++++++++++++++++++++++++++---
 drivers/gpu/drm/i915/intel_hdmi.c      |  240 +++++-
 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       |  842 ++++++++++++++++++++++
 drivers/misc/mei/hdcp/mei_hdcp.h       |  389 ++++++++++
 drivers/misc/mei/hw-me-regs.h          |    2 +
 drivers/misc/mei/pci-me.c              |    2 +
 include/drm/drm_hdcp.h                 |   25 +-
 include/drm/i915_component.h           |    3 +
 include/drm/i915_mei_hdcp_interface.h  |  148 ++++
 include/linux/mei_cl_bus.h             |    2 +
 25 files changed, 3280 insertions(+), 127 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

-- 
2.7.4

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