1/* $NetBSD: i915_gem_lmem.c,v 1.2 2021/12/18 23:45:30 riastradh Exp $ */ 2 3// SPDX-License-Identifier: MIT 4/* 5 * Copyright �� 2019 Intel Corporation 6 */ 7 8#include <sys/cdefs.h> 9__KERNEL_RCSID(0, "$NetBSD: i915_gem_lmem.c,v 1.2 2021/12/18 23:45:30 riastradh Exp $"); 10 11#include "intel_memory_region.h" 12#include "gem/i915_gem_region.h" 13#include "gem/i915_gem_lmem.h" 14#include "i915_drv.h" 15 16const struct drm_i915_gem_object_ops i915_gem_lmem_obj_ops = { 17 .flags = I915_GEM_OBJECT_HAS_IOMEM, 18 19 .get_pages = i915_gem_object_get_pages_buddy, 20 .put_pages = i915_gem_object_put_pages_buddy, 21 .release = i915_gem_object_release_memory_region, 22}; 23 24bool i915_gem_object_is_lmem(struct drm_i915_gem_object *obj) 25{ 26 return obj->ops == &i915_gem_lmem_obj_ops; 27} 28 29struct drm_i915_gem_object * 30i915_gem_object_create_lmem(struct drm_i915_private *i915, 31 resource_size_t size, 32 unsigned int flags) 33{ 34 return i915_gem_object_create_region(i915->mm.regions[INTEL_REGION_LMEM], 35 size, flags); 36} 37 38struct drm_i915_gem_object * 39__i915_gem_lmem_object_create(struct intel_memory_region *mem, 40 resource_size_t size, 41 unsigned int flags) 42{ 43 static struct lock_class_key lock_class; 44 struct drm_i915_private *i915 = mem->i915; 45 struct drm_i915_gem_object *obj; 46 47 obj = i915_gem_object_alloc(); 48 if (!obj) 49 return ERR_PTR(-ENOMEM); 50 51 drm_gem_private_object_init(&i915->drm, &obj->base, size); 52 i915_gem_object_init(obj, &i915_gem_lmem_obj_ops, &lock_class); 53 54 obj->read_domains = I915_GEM_DOMAIN_WC | I915_GEM_DOMAIN_GTT; 55 56 i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE); 57 58 i915_gem_object_init_memory_region(obj, mem, flags); 59 60 return obj; 61} 62