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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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15
Kernel/Memory/MemoryManager.cpp
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@@ -753,6 +753,13 @@ ErrorOr<NonnullOwnPtr<Memory::Region>> MemoryManager::allocate_dma_buffer_page(S
return region_or_error;
}
ErrorOr<NonnullOwnPtr<Memory::Region>> MemoryManager::allocate_dma_buffer_page(StringView name, Memory::Region::Access access)
{
RefPtr<Memory::PhysicalPage> dma_buffer_page;
return allocate_dma_buffer_page(name, access, dma_buffer_page);
}
ErrorOr<NonnullOwnPtr<Memory::Region>> MemoryManager::allocate_dma_buffer_pages(size_t size, StringView name, Memory::Region::Access access, NonnullRefPtrVector<Memory::PhysicalPage>& dma_buffer_pages)
{
VERIFY(!(size % PAGE_SIZE));
@@ -764,6 +771,14 @@ ErrorOr<NonnullOwnPtr<Memory::Region>> MemoryManager::allocate_dma_buffer_pages(
return region_or_error;
}
ErrorOr<NonnullOwnPtr<Memory::Region>> MemoryManager::allocate_dma_buffer_pages(size_t size, StringView name, Memory::Region::Access access)
{
VERIFY(!(size % PAGE_SIZE));
NonnullRefPtrVector<Memory::PhysicalPage> dma_buffer_pages;
return allocate_dma_buffer_pages(size, name, access, dma_buffer_pages);
}
ErrorOr<NonnullOwnPtr<Region>> MemoryManager::allocate_kernel_region(size_t size, StringView name, Region::Access access, AllocationStrategy strategy, Region::Cacheable cacheable)
{
VERIFY(!(size % PAGE_SIZE));