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