drivers/gpu/drm/i915/i915_gem_gtt.h

   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
  17 struct drm_i915_gem_object;
  18 struct i915_address_space;
  19 struct i915_gem_ww_ctx;
  20
  21 int __must_check i915_gem_gtt_prepare_pages(struct drm_i915_gem_object *obj,
  22                                             struct sg_table *pages);
  23 void i915_gem_gtt_finish_pages(struct drm_i915_gem_object *obj,
  24                                struct sg_table *pages);
  25
  26 int i915_gem_gtt_reserve(struct i915_address_space *vm,
  27                          struct i915_gem_ww_ctx *ww,
  28                          struct drm_mm_node *node,
  29                          u64 size, u64 offset, unsigned long color,
  30                          unsigned int flags);
  31
  32 int i915_gem_gtt_insert(struct i915_address_space *vm,
  33                         struct i915_gem_ww_ctx *ww,
  34                         struct drm_mm_node *node,
  35                         u64 size, u64 alignment, unsigned long color,
  36                         u64 start, u64 end, unsigned int flags);
  37
  38 /* Flags used by pin/bind&friends. */
  39 #define PIN_NOEVICT             BIT_ULL(0)
  40 #define PIN_NOSEARCH            BIT_ULL(1)
  41 #define PIN_NONBLOCK            BIT_ULL(2)
  42 #define PIN_MAPPABLE            BIT_ULL(3)
  43 #define PIN_ZONE_4G             BIT_ULL(4)
  44 #define PIN_HIGH                BIT_ULL(5)
  45 #define PIN_OFFSET_BIAS         BIT_ULL(6)
  46 #define PIN_OFFSET_FIXED        BIT_ULL(7)
  47 #define PIN_OFFSET_GUARD        BIT_ULL(8)
  48 #define PIN_VALIDATE            BIT_ULL(9) /* validate placement only, no need to call unpin() */
  49
  50 #define PIN_GLOBAL              BIT_ULL(10) /* I915_VMA_GLOBAL_BIND */
  51 #define PIN_USER                BIT_ULL(11) /* I915_VMA_LOCAL_BIND */
  52
  53 #define PIN_OFFSET_MASK         I915_GTT_PAGE_MASK
  54
  55 #endif