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