1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2020 Intel Corporation
 4 */
 5
 6#ifndef __I915_GEM_GTT_H__
 7#define __I915_GEM_GTT_H__
 8
 9#include <linux/io-mapping.h>
10#include <linux/types.h>
11
12#include <drm/drm_mm.h>
13
14#include "gt/intel_gtt.h"
15#include "i915_scatterlist.h"
16
17struct drm_i915_gem_object;
18struct i915_address_space;
19
20int __must_check i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj,
21					    struct sg_table *pages);
22void i915_gem_gtt_finish_pages(struct drm_i915_gem_object *obj,
23			       struct sg_table *pages);
24
25int i915_gem_gtt_reserve(struct i915_address_space *vm,
26			 struct drm_mm_node *node,
27			 u64 size, u64 offset, unsigned long color,
28			 unsigned int flags);
29
30int i915_gem_gtt_insert(struct i915_address_space *vm,
31			struct drm_mm_node *node,
32			u64 size, u64 alignment, unsigned long color,
33			u64 start, u64 end, unsigned int flags);
34
35/* Flags used by pin/bind&friends. */
36#define PIN_NOEVICT		BIT_ULL(0)
37#define PIN_NOSEARCH		BIT_ULL(1)
38#define PIN_NONBLOCK		BIT_ULL(2)
39#define PIN_MAPPABLE		BIT_ULL(3)
40#define PIN_ZONE_4G		BIT_ULL(4)
41#define PIN_HIGH		BIT_ULL(5)
42#define PIN_OFFSET_BIAS		BIT_ULL(6)
43#define PIN_OFFSET_FIXED	BIT_ULL(7)
44
45#define PIN_GLOBAL		BIT_ULL(10) /* I915_VMA_GLOBAL_BIND */
46#define PIN_USER		BIT_ULL(11) /* I915_VMA_LOCAL_BIND */
47
48#define PIN_OFFSET_MASK		I915_GTT_PAGE_MASK
49
50#endif