Kernel: Use DMA helper everywhere

Port UCHI, AC97, SB16, BMIDEChannel and AHCIPort to use the helper to
allocate DMA buffers.

1 files changed, 2 insertions, 6 deletions

diff --git a/Kernel/Bus/USB/UHCI/UHCIController.cpp b/Kernel/Bus/USB/UHCI/UHCIController.cpp
index e14e552882..06ec1ac5a6 100644
--- a/Kernel/Bus/USB/UHCI/UHCIController.cpp
+++ b/Kernel/Bus/USB/UHCI/UHCIController.cpp
@@ -107,9 +107,7 @@ ErrorOr<void> UHCIController::reset()
     }
 
     // Let's allocate the physical page for the Frame List (which is 4KiB aligned)
-    auto vmobject = TRY(Memory::AnonymousVMObject::try_create_physically_contiguous_with_size(PAGE_SIZE));
-
-    m_framelist = TRY(MM.allocate_kernel_region_with_vmobject(move(vmobject), PAGE_SIZE, "UHCI Framelist", Memory::Region::Access::Write));
+    m_framelist = TRY(MM.allocate_dma_buffer_page("UHCI Framelist", Memory::Region::Access::Write));
     dbgln("UHCI: Allocated framelist at physical address {}", m_framelist->physical_page(0)->paddr());
     dbgln("UHCI: Framelist is at virtual address {}", m_framelist->vaddr());
     write_sofmod(64); // 1mS frame time
@@ -141,11 +139,9 @@ UNMAP_AFTER_INIT ErrorOr<void> UHCIController::create_structures()
     m_dummy_qh = allocate_queue_head();
 
     // Now the Transfer Descriptor pool
-    auto td_pool_vmobject = TRY(Memory::AnonymousVMObject::try_create_physically_contiguous_with_size(PAGE_SIZE));
-
     m_transfer_descriptor_pool = TRY(UHCIDescriptorPool<TransferDescriptor>::try_create("Transfer Descriptor Pool"sv));
 
-    m_isochronous_transfer_pool = TRY(MM.allocate_kernel_region_with_vmobject(move(td_pool_vmobject), PAGE_SIZE, "UHCI Isochronous Descriptor Pool", Memory::Region::Access::ReadWrite));
+    m_isochronous_transfer_pool = TRY(MM.allocate_dma_buffer_page("UHCI Isochronous Descriptor Pool", Memory::Region::Access::ReadWrite));
 
     // Set up the Isochronous Transfer Descriptor list
     m_iso_td_list.resize(UHCI_NUMBER_OF_ISOCHRONOUS_TDS);