drm/i915/huc: Prepare for GSC-loaded HuC

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HuC loading via GSC is performed via a PXP command sent through the mei
modules, so we need both MEI_GSC and MEI_PXP to be available. Given that
the GSC will do both the transfer and the authentication, the legacy HuC
loading paths can be safely skipped.
Also note that the GSC-loaded HuC survives GT reset.

v2: move the huc_is_authenticated() function to this patch.

Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220504204816.2082588-4-daniele.ceraolospurio@intel.com

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This commit is contained in:

Daniele Ceraolo Spurio 2022-05-04 13:48:15 -07:00

parent a7b516bd98

commit 6f67930af7

5 changed files with 100 additions and 18 deletions

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1

drivers/gpu/drm/i915/gt/uc/intel_guc_reg.h

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95

drivers/gpu/drm/i915/gt/uc/intel_huc.c

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6

drivers/gpu/drm/i915/gt/uc/intel_huc.h

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5

drivers/gpu/drm/i915/gt/uc/intel_huc_fw.c

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11

drivers/gpu/drm/i915/gt/uc/intel_uc.c

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