ef6ba31dd3
Add support to enable/disable PLANE_SURF Decryption Request bit.
It requires only to enable plane decryption support when following
condition met.
1. PXP session is enabled.
2. Buffer object is protected.
v2:
- Used gen fb obj user_flags instead gem_object_metadata. [Krishna]
v3:
- intel_pxp_gem_object_status() API changes.
v4: use intel_pxp_is_active (Daniele)
v5: rebase and use the new protected object status checker (Daniele)
v6: used plane state for plane_decryption to handle async flip
as suggested by Ville.
v7: check pxp session while plane decrypt state computation. [Ville]
removed pointless code. [Ville]
v8 (Daniele): update PXP check
v9: move decrypt check after icl_check_nv12_planes() when overlays
have fb set (Juston)
v10 (Daniele): update PXP check again to match rework in earlier
patches and don't consider protection valid if the object has not
been used in an execbuf beforehand.
Cc: Bommu Krishnaiah <krishnaiah.bommu@intel.com>
Cc: Huang Sean Z <sean.z.huang@intel.com>
Cc: Gaurav Kumar <kumar.gaurav@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Juston Li <juston.li@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com> #v9
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210924191452.1539378-14-alan.previn.teres.alexis@intel.com
64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright(c) 2020, Intel Corporation. All rights reserved.
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*/
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#ifndef __INTEL_PXP_H__
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#define __INTEL_PXP_H__
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#include "intel_pxp_types.h"
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struct drm_i915_gem_object;
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static inline bool intel_pxp_is_enabled(const struct intel_pxp *pxp)
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{
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return pxp->ce;
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}
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#ifdef CONFIG_DRM_I915_PXP
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struct intel_gt *pxp_to_gt(const struct intel_pxp *pxp);
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bool intel_pxp_is_active(const struct intel_pxp *pxp);
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void intel_pxp_init(struct intel_pxp *pxp);
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void intel_pxp_fini(struct intel_pxp *pxp);
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void intel_pxp_init_hw(struct intel_pxp *pxp);
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void intel_pxp_fini_hw(struct intel_pxp *pxp);
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void intel_pxp_mark_termination_in_progress(struct intel_pxp *pxp);
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int intel_pxp_start(struct intel_pxp *pxp);
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int intel_pxp_key_check(struct intel_pxp *pxp,
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struct drm_i915_gem_object *obj,
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bool assign);
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void intel_pxp_invalidate(struct intel_pxp *pxp);
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#else
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static inline void intel_pxp_init(struct intel_pxp *pxp)
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{
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}
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static inline void intel_pxp_fini(struct intel_pxp *pxp)
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{
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}
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static inline int intel_pxp_start(struct intel_pxp *pxp)
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{
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return -ENODEV;
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}
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static inline bool intel_pxp_is_active(const struct intel_pxp *pxp)
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{
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return false;
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}
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static inline int intel_pxp_key_check(struct intel_pxp *pxp,
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struct drm_i915_gem_object *obj,
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bool assign)
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{
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return -ENODEV;
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}
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#endif
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#endif /* __INTEL_PXP_H__ */
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