diff options
| -rw-r--r-- | src/core/hle/kernel/vm_manager.cpp | 34 |
1 files changed, 11 insertions, 23 deletions
diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp index a9a20ef76..d223b4ecc 100644 --- a/src/core/hle/kernel/vm_manager.cpp +++ b/src/core/hle/kernel/vm_manager.cpp @@ -3,6 +3,7 @@ // Refer to the license.txt file included. #include <algorithm> +#include <cstring> #include <iterator> #include <utility> #include "common/alignment.h" @@ -269,18 +270,9 @@ ResultVal<VAddr> VMManager::SetHeapSize(u64 size) { // If necessary, expand backing vector to cover new heap extents in // the case of allocating. Otherwise, shrink the backing memory, // if a smaller heap has been requested. - const u64 old_heap_size = GetCurrentHeapSize(); - if (size > old_heap_size) { - const u64 alloc_size = size - old_heap_size; - - heap_memory->insert(heap_memory->end(), alloc_size, 0); - RefreshMemoryBlockMappings(heap_memory.get()); - } else if (size < old_heap_size) { - heap_memory->resize(size); - heap_memory->shrink_to_fit(); - - RefreshMemoryBlockMappings(heap_memory.get()); - } + heap_memory->resize(size); + heap_memory->shrink_to_fit(); + RefreshMemoryBlockMappings(heap_memory.get()); heap_end = heap_region_base + size; ASSERT(GetCurrentHeapSize() == heap_memory->size()); @@ -752,24 +744,20 @@ void VMManager::MergeAdjacentVMA(VirtualMemoryArea& left, const VirtualMemoryAre // Always merge allocated memory blocks, even when they don't share the same backing block. if (left.type == VMAType::AllocatedMemoryBlock && (left.backing_block != right.backing_block || left.offset + left.size != right.offset)) { - const auto right_begin = right.backing_block->begin() + right.offset; - const auto right_end = right_begin + right.size; // Check if we can save work. if (left.offset == 0 && left.size == left.backing_block->size()) { // Fast case: left is an entire backing block. - left.backing_block->insert(left.backing_block->end(), right_begin, right_end); + left.backing_block->resize(left.size + right.size); + std::memcpy(left.backing_block->data() + left.size, + right.backing_block->data() + right.offset, right.size); } else { // Slow case: make a new memory block for left and right. - const auto left_begin = left.backing_block->begin() + left.offset; - const auto left_end = left_begin + left.size; - const auto left_size = static_cast<std::size_t>(std::distance(left_begin, left_end)); - const auto right_size = static_cast<std::size_t>(std::distance(right_begin, right_end)); - auto new_memory = std::make_shared<PhysicalMemory>(); - new_memory->reserve(left_size + right_size); - new_memory->insert(new_memory->end(), left_begin, left_end); - new_memory->insert(new_memory->end(), right_begin, right_end); + new_memory->resize(left.size + right.size); + std::memcpy(new_memory->data(), left.backing_block->data() + left.offset, left.size); + std::memcpy(new_memory->data() + left.size, right.backing_block->data() + right.offset, + right.size); left.backing_block = std::move(new_memory); left.offset = 0; |