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Code Issues Releases Activity

memory_manager: Cleanup FindFreeRegion.

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bunnei 2019-03-20 23:12:28 -04:00
parent 5a5fccaa23
commit 2117edd0f8
2 changed files with 6 additions and 12 deletions
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14
src/video_core/memory_manager.cpp
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@ -30,8 +30,7 @@ MemoryManager::MemoryManager() {
GPUVAddr MemoryManager::AllocateSpace(u64 size, u64 align) { GPUVAddr MemoryManager::AllocateSpace(u64 size, u64 align) {
const u64 aligned_size{Common::AlignUp(size, page_size)}; const u64 aligned_size{Common::AlignUp(size, page_size)};
const GPUVAddr gpu_addr{ const GPUVAddr gpu_addr{FindFreeRegion(address_space_base, aligned_size)};
FindFreeRegion(address_space_base, aligned_size, align, VirtualMemoryArea::Type::Unmapped)};
AllocateMemory(gpu_addr, 0, aligned_size); AllocateMemory(gpu_addr, 0, aligned_size);
@ -48,8 +47,7 @@ GPUVAddr MemoryManager::AllocateSpace(GPUVAddr gpu_addr, u64 size, u64 align) {
GPUVAddr MemoryManager::MapBufferEx(VAddr cpu_addr, u64 size) { GPUVAddr MemoryManager::MapBufferEx(VAddr cpu_addr, u64 size) {
const u64 aligned_size{Common::AlignUp(size, page_size)}; const u64 aligned_size{Common::AlignUp(size, page_size)};
const GPUVAddr gpu_addr{FindFreeRegion(address_space_base, aligned_size, page_size, const GPUVAddr gpu_addr{FindFreeRegion(address_space_base, aligned_size)};
VirtualMemoryArea::Type::Unmapped)};
MapBackingMemory(gpu_addr, Memory::GetPointer(cpu_addr), aligned_size, cpu_addr); MapBackingMemory(gpu_addr, Memory::GetPointer(cpu_addr), aligned_size, cpu_addr);
@ -79,14 +77,10 @@ GPUVAddr MemoryManager::UnmapBuffer(GPUVAddr gpu_addr, u64 size) {
return gpu_addr; return gpu_addr;
} }
GPUVAddr MemoryManager::FindFreeRegion(GPUVAddr region_start, u64 size, u64 align, GPUVAddr MemoryManager::FindFreeRegion(GPUVAddr region_start, u64 size) {
VirtualMemoryArea::Type vma_type) {
align = (align + page_mask) & ~page_mask;
// Find the first Free VMA. // Find the first Free VMA.
const VMAHandle vma_handle{std::find_if(vma_map.begin(), vma_map.end(), [&](const auto& vma) { const VMAHandle vma_handle{std::find_if(vma_map.begin(), vma_map.end(), [&](const auto& vma) {
if (vma.second.type != vma_type) { if (vma.second.type != VirtualMemoryArea::Type::Unmapped) {
return false; return false;
} }

4
src/video_core/memory_manager.h
View file

@ -126,8 +126,8 @@ private:
/// Updates the pages corresponding to this VMA so they match the VMA's attributes. /// Updates the pages corresponding to this VMA so they match the VMA's attributes.
void UpdatePageTableForVMA(const VirtualMemoryArea& vma); void UpdatePageTableForVMA(const VirtualMemoryArea& vma);
GPUVAddr FindFreeRegion(GPUVAddr region_start, u64 size, u64 align, /// Finds a free (unmapped region) of the specified size starting at the specified address.
VirtualMemoryArea::Type vma_type); GPUVAddr FindFreeRegion(GPUVAddr region_start, u64 size);
private: private:
static constexpr u64 page_bits{16}; static constexpr u64 page_bits{16};