From dac84a388528ab002b517213be47f53dc0fd978a Mon Sep 17 00:00:00 2001 From: Anusha Srivatsa Date: Wed, 18 Jan 2017 08:05:57 -0800 Subject: drm/i915/huc: Support HuC authentication The HuC authentication is done by host2guc call. The HuC RSA keys are sent to GuC for authentication. v2: rebased on top of drm-tip. Changed name format and upped version 1.7. v3: changed wait_for_atomic to wait_for v4: rebased. Rename intel_huc_auh() to intel_guc_auth_huc() and place the prototype in intel_guc.h,correct the comments. v5: rebased. Moved intel_guc_auth_huc from i915_guc_submission.c to intel_uc.c.Update dev to dev_priv in intel_guc_auth_huc(). Renamed HOST2GUC_ACTION_AUTHENTICATE_HUC TO INTEL_GUC_ACTION_ AUTHENTICATE_HUC v6: rebased. Add newline on DRM_ERRORs that already dont have one. v7: rebased. Replace wait_for with intel_wait_for_register() since the latter employs sleep optimisations for quick responses- as pointed out by Chris Wilson. v8: rebased. Cleanup the intel_guc_auth_huc() by removing checks already performed in earlier functions. Make comments more descriptive. v9: rebased. Changed the bias for pinning the HuC object. Move intel_guc_auth_huc() to intel_huc.c. Change DRM_DEBUGs to DRM_ERRORs in intel_guc_auth_huc(). Add return status to DRM_ERRORs. v10: Remove message not required for the user.. Cc: Chris Wilson Cc: Arkadiusz Hiler Cc: Michal Wajdeczko Tested-by: Xiang Haihao Signed-off-by: Anusha Srivatsa Signed-off-by: Alex Dai Signed-off-by: Peter Antoine Signed-off-by: Jani Nikula Link: http://patchwork.freedesktop.org/patch/msgid/1484755558-1234-5-git-send-email-anusha.srivatsa@intel.com --- drivers/gpu/drm/i915/intel_uc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/drm/i915/intel_uc.h') diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h index 4fd411b02ceb..d74f4d3ad8dc 100644 --- a/drivers/gpu/drm/i915/intel_uc.h +++ b/drivers/gpu/drm/i915/intel_uc.h @@ -226,5 +226,6 @@ static inline u32 guc_ggtt_offset(struct i915_vma *vma) void intel_huc_init(struct drm_i915_private *dev_priv); void intel_huc_fini(struct drm_i915_private *dev_priv); int intel_huc_load(struct drm_i915_private *dev_priv); +void intel_guc_auth_huc(struct drm_i915_private *dev_priv); #endif -- cgit v1.2.3