[PATCH 0/5] HDCP SRM interface

Harry Wentland hwentlan at amd.com
Wed Jan 22 16:11:55 UTC 2020


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.

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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