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Kernel: Rename Kernel/VM/ to Kernel/Memory/

Browse source 
This directory isn't just about virtual memory, it's about all kinds
of memory management.
This commit is contained in:
Andreas Kling 2021-08-06 10:45:34 +02:00
parent 4e8e1b7b3a
commit a1d7ebf85a
117 changed files with 207 additions and 204 deletions
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25
Kernel/Memory/ScatterGatherList.cpp Normal file
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@ -0,0 +1,25 @@
/*
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Memory/ScatterGatherList.h>
namespace Kernel {
RefPtr<ScatterGatherList> ScatterGatherList::try_create(AsyncBlockDeviceRequest& request, Span<NonnullRefPtr<PhysicalPage>> allocated_pages, size_t device_block_size)
{
auto vm_object = AnonymousVMObject::try_create_with_physical_pages(allocated_pages);
if (!vm_object)
return {};
return adopt_ref_if_nonnull(new (nothrow) ScatterGatherList(vm_object.release_nonnull(), request, device_block_size));
}
ScatterGatherList::ScatterGatherList(NonnullRefPtr<AnonymousVMObject> vm_object, AsyncBlockDeviceRequest& request, size_t device_block_size)
: m_vm_object(move(vm_object))
{
m_dma_region = MM.allocate_kernel_region_with_vmobject(m_vm_object, page_round_up((request.block_count() * device_block_size)), "AHCI Scattered DMA", Region::Access::Read | Region::Access::Write, Region::Cacheable::Yes);
}
}