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