Re: [PATCH v2 0/3] drm/i915: Support bigger GuC RSA keys

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On 12/10/2021 4:07 PM, Daniele Ceraolo Spurio wrote:
Some of the newer platforms use a bigger RSA key to authenticate the GuC,
which is provided to the HW via a ggtt-pinned object instead of mmio.

While doing the changes for this I've also spotted an inconsistency in
the error status of the fw on init failure, so I've added a path to fix
that as well.

v2: clarify in comments that the expected RSA size is hardcoded in the
bootrom (Matt)

I've confirmed with Matt that he's ok with the updated comment and pushed.

Daniele


Cc: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: John Harrison <John.C.Harrison@xxxxxxxxx>
Cc: Matthew Brost <matthew.brost@xxxxxxxxx>

Daniele Ceraolo Spurio (2):
   drm/i915/uc: correctly track uc_fw init failure
   drm/i915/guc: support bigger RSA keys

Michal Wajdeczko (1):
   drm/i915/uc: Prepare for different firmware key sizes

  drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c | 33 ++++++--
  drivers/gpu/drm/i915/gt/uc/intel_huc.c    | 75 +-----------------
  drivers/gpu/drm/i915/gt/uc/intel_huc.h    |  2 -
  drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c  | 95 ++++++++++++++++++++---
  drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h  | 18 +++--
  5 files changed, 128 insertions(+), 95 deletions(-)





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