> -----Original Message----- > From: Daniel Vetter [mailto:daniel.vetter@xxxxxxxx] On Behalf Of Daniel Vetter > Sent: Tuesday, May 29, 2018 12:27 PM > To: C, Ramalingam <ramalingam.c@xxxxxxxxx> > Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx; > seanpaul@xxxxxxxxxxxx; daniel@xxxxxxxx; chris@xxxxxxxxxxxxxxxxxx; > jani.nikula@xxxxxxxxxxxxxxx; Winkler, Tomas <tomas.winkler@xxxxxxxxx>; > Usyskin, Alexander <alexander.usyskin@xxxxxxxxx>; Shankar, Uma > <uma.shankar@xxxxxxxxx>; Sharma, Shashank <shashank.sharma@xxxxxxxxx> > Subject: Re: [PATCH v4 00/41] drm/i915: Implement HDCP2.2 > > 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 :-/ You can find a github repo for HDCP2.2 v4 series at https://github.com/ramalingampc2008/drm-tip Thanks, Ram > > 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 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
