[Intel-gfx] [PATCH v6 00/35] drm/i915: Implement HDCP2.2
Shankar, Uma
uma.shankar at intel.com
Mon Jul 30 09:09:20 UTC 2018
>-----Original Message-----
>From: dri-devel [mailto:dri-devel-bounces at lists.freedesktop.org] On Behalf Of
>Ramalingam C
>Sent: Saturday, July 14, 2018 8:45 AM
>To: intel-gfx at lists.freedesktop.org; dri-devel at lists.freedesktop.org;
>daniel at ffwll.ch; seanpaul at chromium.org; Winkler, Tomas
><tomas.winkler at intel.com>; Usyskin, Alexander <alexander.usyskin at intel.com>;
>Shankar, Uma <uma.shankar at intel.com>
>Subject: [PATCH v6 00/35] drm/i915: Implement HDCP2.2
>
>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.
I feel it would be good to have a config to control HDCP2.2 instead of having such a
strong binding with MEI. If MEI have some issues we don’t want I915 to go down even
if HDCP is not even required or used for a particular distribution or a design.
@Daniel/Sean - What do you suggest ?
>
>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 and Sean Paul for reviewing v5.
>
>Major Changes in v6:
> - Component master is added in I915_load [Daniel].
> - I915 load will wait until all associated components are loaded.
> [Daniel]
> - Many review comments from Sean Paul and Daniel Vetter are addressed.
> - Few patches are merged together. [Sean Paul]
> - Gmbus changes for burst read is already merged.
>
>Complete series is hosted at
> https://github.com/ramalingampc2008/drm-tip.git hdcp2_2_v6
>
>Ramalingam C (34):
> 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 Intel HDCP2.2 registers
> component: alloc component_match without any comp to match
> drm/i915: component master at i915 driver load
> drm/i915: Initialize HDCP2.2 and its MEI interface
> drm/i915: Pullout the bksv read and validation
> drm/i915: Enable and Disable of HDCP2.2
> 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: 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/base/component.c | 30 +
> drivers/gpu/drm/i915/i915_drv.c | 87 ++-
> drivers/gpu/drm/i915/i915_drv.h | 3 +
> drivers/gpu/drm/i915/i915_reg.h | 32 +
> drivers/gpu/drm/i915/intel_display.c | 6 +-
> drivers/gpu/drm/i915/intel_dp.c | 345 ++++++++++-
> drivers/gpu/drm/i915/intel_drv.h | 92 ++-
> drivers/gpu/drm/i915/intel_hdcp.c | 1107
>+++++++++++++++++++++++++++++++---
> drivers/gpu/drm/i915/intel_hdmi.c | 192 +++++-
> 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 | 857 ++++++++++++++++++++++++++
> drivers/misc/mei/hdcp/mei_hdcp.h | 408 +++++++++++++
> include/drm/drm_dp_helper.h | 51 ++
> include/drm/drm_hdcp.h | 237 ++++++++
> include/drm/i915_component.h | 76 +++
> include/linux/component.h | 2 +
> include/linux/mei_hdcp.h | 100 +++
> 20 files changed, 3559 insertions(+), 97 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
>
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