[PULL] drm/i915: Add HDCP support to i915

[Sean Paul]

On Wed, Feb 14, 2018 at 3:33 AM, Hans Verkuil <hverkuil at xs4all.nl> wrote:
> Hi Sean,
>
> On 13/02/18 21:18, Sean Paul wrote:
>>
>> Hi Dave,
>> Here's the pull request for HDCP. Hopefully no surprises since it's been baking
>> in drm-tip for a while now.
>>
>> topic/hdcp-2018-02-13:
>> Add HDCP support to i915 drm driver.
>>
>> Cheers, Sean
>>
>>
>> The following changes since commit b0caa1333b6d2d928a00304e9fb6674526c37b79:
>>
>>   Merge tag 'imx-drm-next-2018-01-02' of git://git.pengutronix.de/git/pza/linux into drm-next (2018-01-05 11:33:24 +1000)
>>
>> are available in the Git repository at:
>>
>>   git://anongit.freedesktop.org/drm/drm-misc tags/topic/hdcp-2018-02-13
>>
>> for you to fetch changes up to 2834d9dfaf0276e197158be6af8e1a1d59e58289:
>>
>>   drm/i915: fix misalignment in HDCP register def (2018-02-05 12:59:29 -0500)
>>
>> ----------------------------------------------------------------
>> Add HDCP support to i915 drm driver.
>>
>> ----------------------------------------------------------------
>> Chris Wilson (1):
>>       drm/i915/dp: Fix compilation of intel_dp_hdcp_check_link
>>
>> Ramalingam C (12):
>>       drm/i915: Extending HDCP for HSW, BDW and BXT+
>>       drm/i915: II stage HDCP auth for repeater only
>>       drm/i915: Start repeater auth on READY/CP_IRQ
>>       drm/i915: Check for downstream topology errors
>>       drm/i915: Handle failure from 2nd stage HDCP auth
>>       drm/i915: Stop encryption for repeater with no sink
>>       drm/i915: Connector info in HDCP debug msgs
>>       drm/i915: Retry HDCP bksv read
>>       drm/i915: Optimize HDCP key load
>>       drm/i915: Detect panel's hdcp capability
>>       drm/i915: Reauthenticate HDCP on failure
>>       drm/i915: fix misalignment in HDCP register def
>
> Were these ever posted to dri-devel? I can't find them there.
>
> Do these patches from Ramalingam C add repeater support to the i915?
> If so, then I am certainly interested in seeing these since we (Cisco)
> are working on HDCP (including repeater support) for HDMI receivers.
>

Hi Hans!
We had a conversation on these patches and repeater support when I
initially posted them :-)
https://lists.freedesktop.org/archives/intel-gfx/2017-December/149112.html

It'd be great if you could try it out and report back.

Cheers,

Sean

> Nothing public yet, it's too early for that. But it would be nice to
> test with the i915 driver.
>
> Regards,
>
>         Hans
>
>>
>> Sean Paul (13):
>>       drm: Fix link-status kerneldoc line lengths
>>       drm/i915: Add more control to wait_for routines
>>       drm: Add Content Protection property
>>       drm: Add some HDCP related #defines
>>       drm/i915: Add HDCP framework + base implementation
>>       drm/i915: Make use of indexed write GMBUS feature
>>       drm/i915: Add function to output Aksv over GMBUS
>>       drm/i915: Implement HDCP for HDMI
>>       drm/i915: Implement HDCP for DisplayPort
>>       drm/i915: Don't allow HDCP on PORT E/F
>>       drm/i915: Only disable HDCP when it's active
>>       drm/i915: Restore HDCP DRM_INFO when with no downstream
>>       drm/i915: Downgrade hdcp logs from INFO to DEBUG_KMS
>>
>>  drivers/gpu/drm/drm_atomic.c         |   8 +
>>  drivers/gpu/drm/drm_connector.c      |  87 +++-
>>  drivers/gpu/drm/i915/Makefile        |   1 +
>>  drivers/gpu/drm/i915/i915_drv.h      |   1 +
>>  drivers/gpu/drm/i915/i915_reg.h      |  86 ++++
>>  drivers/gpu/drm/i915/intel_atomic.c  |   2 +
>>  drivers/gpu/drm/i915/intel_ddi.c     |  36 ++
>>  drivers/gpu/drm/i915/intel_display.c |   4 +
>>  drivers/gpu/drm/i915/intel_dp.c      | 277 +++++++++++-
>>  drivers/gpu/drm/i915/intel_drv.h     | 109 ++++-
>>  drivers/gpu/drm/i915/intel_hdcp.c    | 807 +++++++++++++++++++++++++++++++++++
>>  drivers/gpu/drm/i915/intel_hdmi.c    | 250 +++++++++++
>>  drivers/gpu/drm/i915/intel_i2c.c     |  81 +++-
>>  drivers/gpu/drm/i915/intel_uncore.c  |  23 +-
>>  drivers/gpu/drm/i915/intel_uncore.h  |  14 +-
>>  include/drm/drm_connector.h          |  16 +
>>  include/drm/drm_dp_helper.h          |  17 +
>>  include/drm/drm_hdcp.h               |  41 ++
>>  include/uapi/drm/drm_mode.h          |   4 +
>>  19 files changed, 1821 insertions(+), 43 deletions(-)
>>  create mode 100644 drivers/gpu/drm/i915/intel_hdcp.c
>>  create mode 100644 include/drm/drm_hdcp.h
>>
>