On Mon, May 21, 2018 at 06:23:19PM +0530, Ramalingam C wrote: > 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. Please reply with a link to your github here (and include it in your next cover letter too). I can't ever find it when I need it :-/ Thanks, Daniel > > 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 > -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
