Re: [PATCH v4 00/14] drm/i915: Add support for HDCP 1.4 over MST connectors

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On Tue, 2020-02-18 at 17:02 -0500, Sean Paul wrote:
> From: Sean Paul <seanpaul@xxxxxxxxxxxx>
> 
> Hey all,
> Back with a v4. Rebased on latest drm-tip.
> 
> Biggest change was adding the QUERY_STREAM_ENCRYPTION_STATUS check
> which
> ensures not only the link to the first branch is encrypted, but also
> that the channel iteself is also protected.
> 
> Sean
> 

nit, i915_display_info debugfs for intel_dp_mst_info() doesn't show
"HDCP version: "

Juston

> Sean Paul (14):
>   drm/i915: Fix sha_text population code
>   drm/i915: Clear the repeater bit on HDCP disable
>   drm/i915: WARN if HDCP signalling is enabled upon disable
>   drm/i915: Intercept Aksv writes in the aux hooks
>   drm/i915: Use the cpu_transcoder in intel_hdcp to toggle HDCP
>     signalling
>   drm/i915: Factor out hdcp->value assignments
>   drm/i915: Protect workers against disappearing connectors
>   drm/i915: Don't fully disable HDCP on a port if multiple pipes are
>     using it
>   drm/i915: Support DP MST in enc_to_dig_port() function
>   drm/i915: Use ddi_update_pipe in intel_dp_mst
>   drm/i915: Factor out HDCP shim functions from dp for use by dp_mst
>   drm/i915: Add connector to hdcp_shim->check_link()
>   drm/mst: Add support for QUERY_STREAM_ENCRYPTION_STATUS MST
> sideband
>     message
>   drm/i915: Add HDCP 1.4 support for MST connectors
> 
>  drivers/gpu/drm/drm_dp_mst_topology.c         | 117 +++
>  drivers/gpu/drm/i915/Makefile                 |   1 +
>  drivers/gpu/drm/i915/display/intel_ddi.c      |  26 +-
>  drivers/gpu/drm/i915/display/intel_ddi.h      |   2 +
>  .../drm/i915/display/intel_display_types.h    |  30 +-
>  drivers/gpu/drm/i915/display/intel_dp.c       | 620 +--------------
>  drivers/gpu/drm/i915/display/intel_dp.h       |   7 +
>  drivers/gpu/drm/i915/display/intel_dp_hdcp.c  | 705
> ++++++++++++++++++
>  drivers/gpu/drm/i915/display/intel_dp_mst.c   |  15 +
>  drivers/gpu/drm/i915/display/intel_hdcp.c     | 199 +++--
>  drivers/gpu/drm/i915/display/intel_hdmi.c     |  23 +-
>  include/drm/drm_dp_helper.h                   |   3 +
>  include/drm/drm_dp_mst_helper.h               |  44 ++
>  include/drm/drm_hdcp.h                        |   3 +
>  14 files changed, 1127 insertions(+), 668 deletions(-)
>  create mode 100644 drivers/gpu/drm/i915/display/intel_dp_hdcp.c
> 
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