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Kernel: Overload DMA helper without Physical Page output parameter

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Not all drivers need the PhysicalPage output parameter while creating
a DMA buffer. This overload will avoid creating a temporary variable
for the caller
This commit is contained in:
Pankaj Raghav 2022-01-08 22:04:09 +05:30 • committed by Andreas Kling
parent e79f94f998
commit 59da9bd0bd
2 changed files with 17 additions and 0 deletions
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2
Kernel/Memory/MemoryManager.h
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@ -176,7 +176,9 @@ public:
ErrorOr<NonnullOwnPtr<Region>> allocate_contiguous_kernel_region(size_t, StringView name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
ErrorOr<NonnullOwnPtr<Memory::Region>> allocate_dma_buffer_page(StringView name, Memory::Region::Access access, RefPtr<Memory::PhysicalPage>& dma_buffer_page);
ErrorOr<NonnullOwnPtr<Memory::Region>> allocate_dma_buffer_page(StringView name, Memory::Region::Access access);
ErrorOr<NonnullOwnPtr<Memory::Region>> allocate_dma_buffer_pages(size_t size, StringView name, Memory::Region::Access access, NonnullRefPtrVector<Memory::PhysicalPage>& dma_buffer_pages);
ErrorOr<NonnullOwnPtr<Memory::Region>> allocate_dma_buffer_pages(size_t size, StringView name, Memory::Region::Access access);
ErrorOr<NonnullOwnPtr<Region>> allocate_kernel_region(size_t, StringView name, Region::Access access, AllocationStrategy strategy = AllocationStrategy::Reserve, Region::Cacheable = Region::Cacheable::Yes);
ErrorOr<NonnullOwnPtr<Region>> allocate_kernel_region(PhysicalAddress, size_t, StringView name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);
ErrorOr<NonnullOwnPtr<Region>> allocate_kernel_region_with_vmobject(VMObject&, size_t, StringView name, Region::Access access, Region::Cacheable = Region::Cacheable::Yes);