[Intel-gfx] [PATCH 00/10] HDCP2.2 Phase II

[Ramalingam C]

HDCP2.2 phase-II mojorly adds below features:
	Addition of three connector properties
		CP_Content_Type
		CP_SRM
		CP_Downstream_Info
	parsing for HDCP1.4 and 2.2 SRM Blobs
	Once HDCP1.4/2.2 authentication is completed gathering the all
		downstream topology for userspace 
	Extending debugfs entry to provide the HDCP2.2 capability too.

CP_Content_Type:
	This property is used to indicate the content type
classification of a stream. Which indicate the HDCP version required
for the rendering of that streams. This conten type is one of the
parameter in the HDCP2.2 authentication flow, as even downstream
repeaters will mandate the HDCP version requirement.

Two values possible for content type of a stream:
	Type 0: Stream can be rendered only on HDCP encrypted link no
		restriction on HDCP versions.
	Type 1: Stream can be rendered only on HDCP2.2 encrypted link.

There is a parallel effort in #wayland community to add the support for
HDCP2.2 along with content type support. Patches are under review in
#wayland community.

CP_SRM:
This blob property is used by the userspace to pass the SRM table
of HDCP1.4 and 2.2. These are nothing but revocated list of receiver IDs
of the HDCP sinks. KMD will use this list to identify the revocated
devices in the HDCP authentication and deny the hdcp encryption to it.

Work in progress to add the SRM support in the weston HDCP stack.
Yet to publish the patches in the #wayland community.

CP_Downstream_Info:
This blob property is used by the kernel to pass the downstream topology
of the HDCP encrypted port to the userspace.

This is used by the userspace to implement the HDCP repeater, which KMD
implementing the HDCP transmitters(downstream ports) and userspace
implementing the upstream port(HDCP receiver).

Discussion is on going to add the downstream_info support in the
weston HDCP stack.

Test-with: 1551165805-19130-2-git-send-email-ramalingam.c at intel.com

Ramalingam C (10):
  drm: Add CP content type property
  drm/i915: Attach content type property
  drm: Add CP System Renewability Msg Property
  drm/i915: Add HDCP SRM Blob parsing
  drm/i915: Add revocation check on HDCP1.4 Ksvs
  drm/i915: SRM parsing and revocation check for HDCP2
  drm: Add CP downstream_info property
  drm/i915: Populate downstream info for HDCP1.4
  drm/i915: Populate downstream info for HDCP2.2
  drm/i915: debugfs: HDCP2.2 capability read

 drivers/gpu/drm/drm_atomic_uapi.c   |  23 +++
 drivers/gpu/drm/drm_connector.c     | 204 ++++++++++++++++++++
 drivers/gpu/drm/i915/i915_debugfs.c |  13 +-
 drivers/gpu/drm/i915/intel_ddi.c    |  23 ++-
 drivers/gpu/drm/i915/intel_drv.h    |  11 +-
 drivers/gpu/drm/i915/intel_hdcp.c   | 373 ++++++++++++++++++++++++++++++++++--
 include/drm/drm_connector.h         |  40 ++++
 include/drm/drm_hdcp.h              |  35 ++++
 include/uapi/drm/drm_mode.h         |  39 ++++
 9 files changed, 737 insertions(+), 24 deletions(-)

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2.7.4