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

Sean Paul seanpaul at chromium.org
Wed Feb 14 13:52:49 UTC 2018


On Wed, Feb 14, 2018 at 02:48:29PM +0100, Hans Verkuil wrote:
> On 14/02/18 14:44, Sean Paul wrote:
> > 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
> 
> Yes, your patches I've seen, but the 12 from Ramalingam I haven't seen.
> At least not on dri-devel. It's a bit weird.

Ahh, I'm sorry I misunderstood. I think Ram may have sent those to intel-gfx
exclusively.

Repeater support was introduced in the initial post. Ram's changes mainly focus
on HDCP compliance.

Sean

> 
> Regards,
> 
> 	Hans
> 
> > 
> > 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
> >>>
> >>
> 

-- 
Sean Paul, Software Engineer, Google / Chromium OS


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