[v14,00/32] drm/i915: Implement HDCP2.2

Message

kernel test robot via dri-devel Feb. 15, 2019, 8:50 p.m. UTC

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: <[e-mail]>

Major changes in v14
  - enum port is moved into the drm/i915_drm.h
  - Small fixes for mei_hdcp Kernel-Doc
  - ICL device ID patch is already merged. So dropped it.
  - Couple of patches are merged already. So dropped them.

To ease the review process, series is hosted at
https://github.com/ramalingampc2008/drm-tip.git hdcp2_2_v14_rebased

Ramalingam C (30):
  drm/i915: Gathering the HDCP1.4 routines together
  drm/i915: Initialize HDCP2.2
  drm/i915: MEI interface implementation
  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/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

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

 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      |  237 +++++-
 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       |  847 ++++++++++++++++++++++
 drivers/misc/mei/hdcp/mei_hdcp.h       |  377 ++++++++++
 include/drm/drm_hdcp.h                 |    7 +-
 include/linux/mei_cl_bus.h             |    2 +
 17 files changed, 3068 insertions(+), 125 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