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 Usyskin, Alexander and Uma shankar for the review of v3. Thanks Daniel vetter for guiding me to test and confirm that there is no locking issue with respect to notifier usage between I915 and MEI_HDCP. Major Changes in v4: - GMBus Changes to implement the burst read as generic [Jani, Ville and Daniel] - Polling is added for extra Notifier notification when I915 and MEI_HDCP are modules. - Comment and style issues and typos are fixed [Uma and Alexander] - INTEL_MEI_HDCP, INTEL_MEI_ME and INTEL_MEI are selected by I915. - Fixed the #if in include/linux/mei_hdcp.h for build issues. GMBus changes are added here for completeness of the series. They are in review at https://patchwork.freedesktop.org/series/41632/ also. Ramalingam C (40): 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: Notifier chain for mei cldev state change 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 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 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/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 Tomas Winkler (1): mei: bus: whitelist hdcp client drivers/gpu/drm/i915/Kconfig | 1 + drivers/gpu/drm/i915/i915_drv.h | 3 + drivers/gpu/drm/i915/i915_reg.h | 34 ++ drivers/gpu/drm/i915/intel_display.c | 7 +- drivers/gpu/drm/i915/intel_dp.c | 370 +++++++++++- drivers/gpu/drm/i915/intel_drv.h | 88 ++- drivers/gpu/drm/i915/intel_hdcp.c | 1096 ++++++++++++++++++++++++++++++++-- drivers/gpu/drm/i915/intel_hdmi.c | 189 +++++- 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 | 817 +++++++++++++++++++++++++ drivers/misc/mei/hdcp/mei_hdcp.h | 415 +++++++++++++ include/drm/drm_dp_helper.h | 51 ++ include/drm/drm_hdcp.h | 232 +++++++ include/linux/mei_hdcp.h | 232 +++++++ 18 files changed, 3546 insertions(+), 91 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 -- 2.7.4 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
