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
i915_gem_stolen_insert_node_in_range(struct xe_device * xe,struct i915_stolen_fb * fb,u32 size,u32 align,u32 start,u32 end)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);
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
i915_gem_stolen_insert_node(struct xe_device * xe,struct i915_stolen_fb * fb,u32 size,u32 align)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
i915_gem_stolen_remove_node(struct xe_device * xe,struct i915_stolen_fb * fb)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
i915_gem_stolen_node_offset(struct i915_stolen_fb * fb)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