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_VALIDATE BIT_ULL(8) /* validate placement only, no need to call unpin() */ 48 49 #define PIN_GLOBAL BIT_ULL(10) /* I915_VMA_GLOBAL_BIND */ 50 #define PIN_USER BIT_ULL(11) /* I915_VMA_LOCAL_BIND */ 51 52 #define PIN_OFFSET_MASK I915_GTT_PAGE_MASK 53 54 #endif 55