1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* Copyright © 2016 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#ifndef __I915_FENCE_REG_H__
#define __I915_FENCE_REG_H__
#include <linux/list.h>
#include <linux/types.h>
struct drm_i915_gem_object;
struct i915_ggtt;
struct i915_vma;
struct intel_gt;
struct sg_table;
#define I965_FENCE_PAGE 4096UL
struct i915_fence_reg {
struct list_head link;
struct i915_ggtt *ggtt;
struct i915_vma *vma;
atomic_t pin_count;
int id;
/**
* Whether the tiling parameters for the currently
* associated fence register have changed. Note that
* for the purposes of tracking tiling changes we also
* treat the unfenced register, the register slot that
* the object occupies whilst it executes a fenced
* command (such as BLT on gen2/3), as a "fence".
*/
bool dirty;
};
/* i915_gem_fence_reg.c */
struct i915_fence_reg *i915_reserve_fence(struct i915_ggtt *ggtt);
void i915_unreserve_fence(struct i915_fence_reg *fence);
void i915_gem_restore_fences(struct i915_ggtt *ggtt);
void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj,
struct sg_table *pages);
void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj,
struct sg_table *pages);
void i915_ggtt_init_fences(struct i915_ggtt *ggtt);
void intel_gt_init_swizzling(struct intel_gt *gt);
#endif
|
