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1/* SPDX-License-Identifier: MIT */2/*3 * Copyright © 2020 Intel Corporation4 */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;19struct i915_gem_ww_ctx;20 21#define I915_COLOR_UNEVICTABLE (-1) /* a non-vma sharing the address space */22 23int __must_check i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj,24 struct sg_table *pages);25void i915_gem_gtt_finish_pages(struct drm_i915_gem_object *obj,26 struct sg_table *pages);27 28int i915_gem_gtt_reserve(struct i915_address_space *vm,29 struct i915_gem_ww_ctx *ww,30 struct drm_mm_node *node,31 u64 size, u64 offset, unsigned long color,32 unsigned int flags);33 34int i915_gem_gtt_insert(struct i915_address_space *vm,35 struct i915_gem_ww_ctx *ww,36 struct drm_mm_node *node,37 u64 size, u64 alignment, unsigned long color,38 u64 start, u64 end, unsigned int flags);39 40/* Flags used by pin/bind&friends. */41#define PIN_NOEVICT BIT_ULL(0)42#define PIN_NOSEARCH BIT_ULL(1)43#define PIN_NONBLOCK BIT_ULL(2)44#define PIN_MAPPABLE BIT_ULL(3)45#define PIN_ZONE_4G BIT_ULL(4)46#define PIN_HIGH BIT_ULL(5)47#define PIN_OFFSET_BIAS BIT_ULL(6)48#define PIN_OFFSET_FIXED BIT_ULL(7)49#define PIN_OFFSET_GUARD BIT_ULL(8)50#define PIN_VALIDATE BIT_ULL(9) /* validate placement only, no need to call unpin() */51 52#define PIN_GLOBAL BIT_ULL(10) /* I915_VMA_GLOBAL_BIND */53#define PIN_USER BIT_ULL(11) /* I915_VMA_LOCAL_BIND */54 55#define PIN_OFFSET_MASK I915_GTT_PAGE_MASK56 57#endif58