drm/i915/pxp: Use drm_dbg if arb session failed due to fw version

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If PXP arb-session is being attempted on older hardware SKUs or
on hardware with older, unsupported, firmware versions, then don't
report the failure with a drm_error. Instead, look specifically for
the API-version error reply and drm_dbg that reply. In this case, the
user-space will eventually get a -ENODEV for the protected context
creation which is the correct behavior and we don't create unnecessary
drm_error's in our dmesg (for what is unsupported platforms).

Changes from prio revs:
   v2 : - remove unnecessary newline. (Jani)
   v1 : - print incorrect version from input packet, not output.

Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Reviewed-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221221174901.2703954-1-alan.previn.teres.alexis@intel.com

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Alan Previn 2022-12-21 09:49:01 -08:00 • committed by John Harrison

parent f7a79bdc4e

commit b762787bf7

2 changed files with 5 additions and 0 deletions

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1

drivers/gpu/drm/i915/pxp/intel_pxp_cmd_interface_cmn.h

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4

drivers/gpu/drm/i915/pxp/intel_pxp_tee.c

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