mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-09-11 13:36:13 +03:00
Remove the hardcoded "AHCI Scattered DMA" for region name as it is a part of a common API. Add region_name parameter to the try_create API so that this API can be used by other drivers with the correct Memory region name.
27 lines
1019 B
C++
27 lines
1019 B
C++
/*
|
|
* Copyright (c) 2021, the SerenityOS developers.
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <Kernel/Memory/ScatterGatherList.h>
|
|
|
|
namespace Kernel::Memory {
|
|
|
|
ErrorOr<LockRefPtr<ScatterGatherList>> ScatterGatherList::try_create(AsyncBlockDeviceRequest& request, Span<NonnullRefPtr<PhysicalPage>> allocated_pages, size_t device_block_size, StringView region_name)
|
|
{
|
|
auto vm_object = TRY(AnonymousVMObject::try_create_with_physical_pages(allocated_pages));
|
|
auto size = TRY(page_round_up((request.block_count() * device_block_size)));
|
|
auto region = TRY(MM.allocate_kernel_region_with_vmobject(vm_object, size, region_name, Region::Access::Read | Region::Access::Write, Region::Cacheable::Yes));
|
|
|
|
return adopt_lock_ref_if_nonnull(new (nothrow) ScatterGatherList(vm_object, move(region)));
|
|
}
|
|
|
|
ScatterGatherList::ScatterGatherList(NonnullLockRefPtr<AnonymousVMObject> vm_object, NonnullOwnPtr<Region> dma_region)
|
|
: m_vm_object(move(vm_object))
|
|
, m_dma_region(move(dma_region))
|
|
{
|
|
}
|
|
|
|
}
|