d148738923
Temporarily remove the buddy allocator and related selftests and hook up the TTM range manager for i915 regions. Also modify the mock region selftests somewhat to account for a fragmenting manager. Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210602083818.241793-2-thomas.hellstrom@linux.intel.com
82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#include "intel_memory_region.h"
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#include "i915_gem_region.h"
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#include "i915_drv.h"
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#include "i915_trace.h"
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void i915_gem_object_init_memory_region(struct drm_i915_gem_object *obj,
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struct intel_memory_region *mem)
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{
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obj->mm.region = intel_memory_region_get(mem);
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if (obj->base.size <= mem->min_page_size)
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obj->flags |= I915_BO_ALLOC_CONTIGUOUS;
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mutex_lock(&mem->objects.lock);
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if (obj->flags & I915_BO_ALLOC_VOLATILE)
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list_add(&obj->mm.region_link, &mem->objects.purgeable);
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else
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list_add(&obj->mm.region_link, &mem->objects.list);
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mutex_unlock(&mem->objects.lock);
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}
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void i915_gem_object_release_memory_region(struct drm_i915_gem_object *obj)
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{
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struct intel_memory_region *mem = obj->mm.region;
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mutex_lock(&mem->objects.lock);
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list_del(&obj->mm.region_link);
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mutex_unlock(&mem->objects.lock);
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intel_memory_region_put(mem);
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}
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struct drm_i915_gem_object *
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i915_gem_object_create_region(struct intel_memory_region *mem,
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resource_size_t size,
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unsigned int flags)
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{
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struct drm_i915_gem_object *obj;
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int err;
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/*
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* NB: Our use of resource_size_t for the size stems from using struct
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* resource for the mem->region. We might need to revisit this in the
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* future.
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*/
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GEM_BUG_ON(flags & ~I915_BO_ALLOC_FLAGS);
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if (!mem)
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return ERR_PTR(-ENODEV);
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size = round_up(size, mem->min_page_size);
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GEM_BUG_ON(!size);
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GEM_BUG_ON(!IS_ALIGNED(size, I915_GTT_MIN_ALIGNMENT));
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if (i915_gem_object_size_2big(size))
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return ERR_PTR(-E2BIG);
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obj = i915_gem_object_alloc();
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if (!obj)
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return ERR_PTR(-ENOMEM);
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err = mem->ops->init_object(mem, obj, size, flags);
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if (err)
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goto err_object_free;
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trace_i915_gem_object_create(obj);
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return obj;
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err_object_free:
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i915_gem_object_free(obj);
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return ERR_PTR(err);
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}
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