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authorAnusha Srivatsa <anusha.srivatsa@intel.com>2017-01-18 08:05:57 -0800
committerJani Nikula <jani.nikula@intel.com>2017-01-19 11:19:07 +0200
commitdac84a388528ab002b517213be47f53dc0fd978a (patch)
treeae05ea570bb52bfc1725ea95bc93912b492c75c1 /drivers/gpu/drm/i915/intel_uc.h
parent0509ead114937436368b8862156f33b9773e99c4 (diff)
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 <chris@chris-wilson.co.uk> Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Tested-by: Xiang Haihao <haihao.xiang@intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Alex Dai <yu.dai@intel.com> Signed-off-by: Peter Antoine <peter.antoine@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1484755558-1234-5-git-send-email-anusha.srivatsa@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_uc.h')
-rw-r--r--drivers/gpu/drm/i915/intel_uc.h1
1 files changed, 1 insertions, 0 deletions
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