[PATCH 0/5] HDCP SRM interface

[Alex Deucher]

On Wed, Jan 22, 2020 at 11:12 AM Harry Wentland <hwentlan at amd.com> wrote:
>
> On 2020-01-16 3:29 p.m., Bhawanpreet Lakha wrote:
> > These patches adds support for SRM loading. By providing an interface to the
> > usermode
> >
> > SRM has to be persistent and since the kernel cannot directly write to system
> > storage we need to provide an interface so that the usermode can do it for us
> >
>
> We'll want to elaborate a bit more on why and how this is done. As
> mentioned on my patch 2 comments I recommend to do this there as the
> cover letter is lost after merge.
>

You might also want to cc dri-devel if you resend to get more reviews.
I'm also not crazy about having to update the file in chunks, but I
don't have any better ideas off hand.  Maybe an ioctl would be
cleaner?

Alex

> Harry
>
> >
> > Bhawanpreet Lakha (5):
> >   drm/amd/display: Pass amdgpu_device instead of psp_context
> >   drm/amd/display: update psp interface header
> >   drm/amd/display: Add sysfs interface for set/get srm
> >   drm/amd/display: Load srm before enabling HDCP
> >   drm/amd/display: call psp set/get interfaces
> >
> >  .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |   2 +-
> >  .../amd/display/amdgpu_dm/amdgpu_dm_hdcp.c    | 182 +++++++++++++++++-
> >  .../amd/display/amdgpu_dm/amdgpu_dm_hdcp.h    |   9 +-
> >  .../drm/amd/display/modules/hdcp/hdcp_psp.h   |  26 ++-
> >  4 files changed, 212 insertions(+), 7 deletions(-)
> >
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