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