1 // SPDX-License-Identifier: MIT 2 /* Copyright © 2024 Intel Corporation */ 3 4 #include <drm/drm_gem.h> 5 6 #include "intel_bo.h" 7 #include "intel_frontbuffer.h" 8 #include "xe_bo.h" 9 #include "xe_pxp.h" 10 11 bool intel_bo_is_tiled(struct drm_gem_object *obj) 12 { 13 /* legacy tiling is unused */ 14 return false; 15 } 16 17 bool intel_bo_is_userptr(struct drm_gem_object *obj) 18 { 19 /* xe does not have userptr bos */ 20 return false; 21 } 22 23 bool intel_bo_is_shmem(struct drm_gem_object *obj) 24 { 25 return false; 26 } 27 28 bool intel_bo_is_protected(struct drm_gem_object *obj) 29 { 30 return xe_bo_is_protected(gem_to_xe_bo(obj)); 31 } 32 33 int intel_bo_key_check(struct drm_gem_object *obj) 34 { 35 return xe_pxp_obj_key_check(obj); 36 } 37 38 int intel_bo_fb_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) 39 { 40 return drm_gem_prime_mmap(obj, vma); 41 } 42 43 int intel_bo_read_from_page(struct drm_gem_object *obj, u64 offset, void *dst, int size) 44 { 45 struct xe_bo *bo = gem_to_xe_bo(obj); 46 47 return xe_bo_read(bo, offset, dst, size); 48 } 49 50 struct xe_frontbuffer { 51 struct intel_frontbuffer base; 52 struct drm_gem_object *obj; 53 struct kref ref; 54 }; 55 56 struct intel_frontbuffer *intel_bo_frontbuffer_get(struct drm_gem_object *obj) 57 { 58 struct xe_frontbuffer *front; 59 60 front = kmalloc_obj(*front, GFP_KERNEL); 61 if (!front) 62 return NULL; 63 64 intel_frontbuffer_init(&front->base, obj->dev); 65 66 kref_init(&front->ref); 67 68 drm_gem_object_get(obj); 69 front->obj = obj; 70 71 return &front->base; 72 } 73 74 void intel_bo_frontbuffer_ref(struct intel_frontbuffer *_front) 75 { 76 struct xe_frontbuffer *front = 77 container_of(_front, typeof(*front), base); 78 79 kref_get(&front->ref); 80 } 81 82 static void frontbuffer_release(struct kref *ref) 83 { 84 struct xe_frontbuffer *front = 85 container_of(ref, typeof(*front), ref); 86 87 intel_frontbuffer_fini(&front->base); 88 89 drm_gem_object_put(front->obj); 90 91 kfree(front); 92 } 93 94 void intel_bo_frontbuffer_put(struct intel_frontbuffer *_front) 95 { 96 struct xe_frontbuffer *front = 97 container_of(_front, typeof(*front), base); 98 99 kref_put(&front->ref, frontbuffer_release); 100 } 101 102 void intel_bo_frontbuffer_flush_for_display(struct intel_frontbuffer *front) 103 { 104 } 105 106 void intel_bo_describe(struct seq_file *m, struct drm_gem_object *obj) 107 { 108 /* FIXME */ 109 } 110