1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2024 Intel Corporation 4 */ 5 6 #ifndef _I915_GEM_STOLEN_H_ 7 #define _I915_GEM_STOLEN_H_ 8 9 #include "xe_ttm_stolen_mgr.h" 10 #include "xe_res_cursor.h" 11 12 struct xe_bo; 13 14 struct i915_stolen_fb { 15 struct xe_bo *bo; 16 }; 17 18 static inline int i915_gem_stolen_insert_node_in_range(struct xe_device *xe, 19 struct i915_stolen_fb *fb, 20 u32 size, u32 align, 21 u32 start, u32 end) 22 { 23 struct xe_bo *bo; 24 int err; 25 u32 flags = XE_BO_FLAG_PINNED | XE_BO_FLAG_STOLEN; 26 27 if (start < SZ_4K) 28 start = SZ_4K; 29 30 if (align) { 31 size = ALIGN(size, align); 32 start = ALIGN(start, align); 33 } 34 35 bo = xe_bo_create_locked_range(xe, xe_device_get_root_tile(xe), 36 NULL, size, start, end, 37 ttm_bo_type_kernel, flags, 0); 38 if (IS_ERR(bo)) { 39 err = PTR_ERR(bo); 40 bo = NULL; 41 return err; 42 } 43 err = xe_bo_pin(bo); 44 xe_bo_unlock_vm_held(bo); 45 46 if (err) { 47 xe_bo_put(fb->bo); 48 bo = NULL; 49 } 50 51 fb->bo = bo; 52 53 return err; 54 } 55 56 static inline int i915_gem_stolen_insert_node(struct xe_device *xe, 57 struct i915_stolen_fb *fb, 58 u32 size, u32 align) 59 { 60 /* Not used on xe */ 61 BUG_ON(1); 62 return -ENODEV; 63 } 64 65 static inline void i915_gem_stolen_remove_node(struct xe_device *xe, 66 struct i915_stolen_fb *fb) 67 { 68 xe_bo_unpin_map_no_vm(fb->bo); 69 fb->bo = NULL; 70 } 71 72 #define i915_gem_stolen_initialized(xe) (!!ttm_manager_type(&(xe)->ttm, XE_PL_STOLEN)) 73 #define i915_gem_stolen_node_allocated(fb) (!!((fb)->bo)) 74 75 static inline u32 i915_gem_stolen_node_offset(struct i915_stolen_fb *fb) 76 { 77 struct xe_res_cursor res; 78 79 xe_res_first(fb->bo->ttm.resource, 0, 4096, &res); 80 return res.start; 81 } 82 83 /* Used for < gen4. These are not supported by Xe */ 84 #define i915_gem_stolen_area_address(xe) (!WARN_ON(1)) 85 /* Used for gen9 specific WA. Gen9 is not supported by Xe */ 86 #define i915_gem_stolen_area_size(xe) (!WARN_ON(1)) 87 88 #define i915_gem_stolen_node_address(xe, fb) (xe_ttm_stolen_gpu_offset(xe) + \ 89 i915_gem_stolen_node_offset(fb)) 90 #define i915_gem_stolen_node_size(fb) ((u64)((fb)->bo->ttm.base.size)) 91 92 #endif 93