Re: [PATCH v2 00/42] drm/i915: Implement HDCP2.2

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

Thank you Tomas for the review on mei related changes. I will work on 
those changes. Awaiting for the reviews on the I915 and DRM changes 
before going for v3. Thanks and Regards --Ram


On Thursday 08 March 2018 05:28 PM, Ramalingam C wrote:
> 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 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.
>
> 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
>
> Major Changes in v2:
>    - Synchronous implementation of HDCP authentication [SeanPaul]
>    - Removal of bit-fields usage.[Tomas and Jani]
>    - Protecting the mei_interface handle with mutex [Chris]
>    - Droped, added and squashed few patches
>    - Extended hdcp_shim to support hdcp2.2 operations too. [SeanPaul]
>    - Used Intel_wait_for_registers(), Where ever it is applicable.[Chris]
>    - mei_hdcp driver is moved into drivers/misc/mei/hdcp/ [Tomas]
>    - Adapted the static declaration for struct intel_hdcp and mei_hdcp_data.
>      [SeanPaul]
>
> Sincere thanks for Sean Paul, Jani Nikula, Chris Wilson and Tomas Winkler
> for the review comments on v1 series.
>
>
> 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: wrapping all hdcp var into intel_hdcp
>    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: Initialize HDCP2.2 and its MEI interface
>    drm/i915: Schedule hdcp_check_link in _intel_hdcp_enable
>    drm/i915: Enable superior HDCP ver that is capable
>    drm/i915: Enable HDCP1.4 incase of HDCP2.2 failure
>    drm/i915: hdcp_check_link only on CP_IRQ
>    drm/i915: Check HDCP 1.4 and 2.2 link on CP_IRQ
>    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
>
> Tomas Winkler (1):
>    mei: bus: whitelist hdcp client
>
>   drivers/gpu/drm/i915/i915_drv.c      |    1 +
>   drivers/gpu/drm/i915/i915_drv.h      |    9 +
>   drivers/gpu/drm/i915/i915_reg.h      |   35 ++
>   drivers/gpu/drm/i915/intel_display.c |    7 +-
>   drivers/gpu/drm/i915/intel_dp.c      |  362 ++++++++++-
>   drivers/gpu/drm/i915/intel_drv.h     |   81 ++-
>   drivers/gpu/drm/i915/intel_hdcp.c    | 1107 ++++++++++++++++++++++++++++++++--
>   drivers/gpu/drm/i915/intel_hdmi.c    |  206 ++++++-
>   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/hdcp/Makefile       |    6 +
>   drivers/misc/mei/hdcp/mei_hdcp.c     |  927 ++++++++++++++++++++++++++++
>   drivers/misc/mei/hdcp/mei_hdcp.h     |  566 +++++++++++++++++
>   include/drm/drm_dp_helper.h          |   54 ++
>   include/drm/drm_hdcp.h               |  220 +++++++
>   include/linux/mei_hdcp.h             |  215 +++++++
>   18 files changed, 3846 insertions(+), 98 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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