1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright(c) 2020, Intel Corporation. All rights reserved. 4 */ 5 6 #ifndef __INTEL_PXP_H__ 7 #define __INTEL_PXP_H__ 8 9 #include <linux/errno.h> 10 #include <linux/types.h> 11 12 struct intel_pxp; 13 struct drm_i915_gem_object; 14 15 #ifdef CONFIG_DRM_I915_PXP 16 struct intel_gt *pxp_to_gt(const struct intel_pxp *pxp); 17 bool intel_pxp_is_enabled(const struct intel_pxp *pxp); 18 bool intel_pxp_is_active(const struct intel_pxp *pxp); 19 20 void intel_pxp_init(struct intel_pxp *pxp); 21 void intel_pxp_fini(struct intel_pxp *pxp); 22 23 void intel_pxp_init_hw(struct intel_pxp *pxp); 24 void intel_pxp_fini_hw(struct intel_pxp *pxp); 25 26 void intel_pxp_mark_termination_in_progress(struct intel_pxp *pxp); 27 28 int intel_pxp_start(struct intel_pxp *pxp); 29 30 int intel_pxp_key_check(struct intel_pxp *pxp, 31 struct drm_i915_gem_object *obj, 32 bool assign); 33 34 void intel_pxp_invalidate(struct intel_pxp *pxp); 35 #else 36 static inline void intel_pxp_init(struct intel_pxp *pxp) 37 { 38 } 39 40 static inline void intel_pxp_fini(struct intel_pxp *pxp) 41 { 42 } 43 44 static inline int intel_pxp_start(struct intel_pxp *pxp) 45 { 46 return -ENODEV; 47 } 48 49 static inline bool intel_pxp_is_enabled(const struct intel_pxp *pxp) 50 { 51 return false; 52 } 53 54 static inline bool intel_pxp_is_active(const struct intel_pxp *pxp) 55 { 56 return false; 57 } 58 59 static inline int intel_pxp_key_check(struct intel_pxp *pxp, 60 struct drm_i915_gem_object *obj, 61 bool assign) 62 { 63 return -ENODEV; 64 } 65 #endif 66 67 #endif /* __INTEL_PXP_H__ */ 68