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Code Issues Releases Activity

kernel/vm_manager: Move variables closer to usage spots in MapPhysicalMemory/UnmapPhysicalMemory

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Narrows the scope of variables down to where they're only necessary.
This commit is contained in:
Lioncash 2019-07-24 07:40:02 -04:00
parent 96cc9a9279
commit b0da7e4262
1 changed files with 10 additions and 16 deletions
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26
src/core/hle/kernel/vm_manager.cpp
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@ -296,12 +296,6 @@ ResultVal<VAddr> VMManager::SetHeapSize(u64 size) {
} }
ResultCode VMManager::MapPhysicalMemory(VAddr target, u64 size) { ResultCode VMManager::MapPhysicalMemory(VAddr target, u64 size) {
const auto end_addr = target + size;
const auto last_addr = end_addr - 1;
VAddr cur_addr = target;
ResultCode result = RESULT_SUCCESS;
// Check how much memory we've already mapped. // Check how much memory we've already mapped.
const auto mapped_size_result = SizeOfAllocatedVMAsInRange(target, size); const auto mapped_size_result = SizeOfAllocatedVMAsInRange(target, size);
if (mapped_size_result.Failed()) { if (mapped_size_result.Failed()) {
@ -324,10 +318,13 @@ ResultCode VMManager::MapPhysicalMemory(VAddr target, u64 size) {
// Keep track of the memory regions we unmap. // Keep track of the memory regions we unmap.
std::vector<std::pair<u64, u64>> mapped_regions; std::vector<std::pair<u64, u64>> mapped_regions;
ResultCode result = RESULT_SUCCESS;
// Iterate, trying to map memory. // Iterate, trying to map memory.
{ {
cur_addr = target; const auto end_addr = target + size;
const auto last_addr = end_addr - 1;
VAddr cur_addr = target;
auto iter = FindVMA(target); auto iter = FindVMA(target);
ASSERT(iter != vma_map.end()); ASSERT(iter != vma_map.end());
@ -381,12 +378,6 @@ ResultCode VMManager::MapPhysicalMemory(VAddr target, u64 size) {
} }
ResultCode VMManager::UnmapPhysicalMemory(VAddr target, u64 size) { ResultCode VMManager::UnmapPhysicalMemory(VAddr target, u64 size) {
const auto end_addr = target + size;
const auto last_addr = end_addr - 1;
VAddr cur_addr = target;
ResultCode result = RESULT_SUCCESS;
// Check how much memory is currently mapped. // Check how much memory is currently mapped.
const auto mapped_size_result = SizeOfUnmappablePhysicalMemoryInRange(target, size); const auto mapped_size_result = SizeOfUnmappablePhysicalMemoryInRange(target, size);
if (mapped_size_result.Failed()) { if (mapped_size_result.Failed()) {
@ -401,10 +392,13 @@ ResultCode VMManager::UnmapPhysicalMemory(VAddr target, u64 size) {
// Keep track of the memory regions we unmap. // Keep track of the memory regions we unmap.
std::vector<std::pair<u64, u64>> unmapped_regions; std::vector<std::pair<u64, u64>> unmapped_regions;
ResultCode result = RESULT_SUCCESS;
// Try to unmap regions. // Try to unmap regions.
{ {
cur_addr = target; const auto end_addr = target + size;
const auto last_addr = end_addr - 1;
VAddr cur_addr = target;
auto iter = FindVMA(target); auto iter = FindVMA(target);
ASSERT(iter != vma_map.end()); ASSERT(iter != vma_map.end());
@ -443,8 +437,8 @@ ResultCode VMManager::UnmapPhysicalMemory(VAddr target, u64 size) {
if (result.IsError()) { if (result.IsError()) {
for (const auto [map_address, map_size] : unmapped_regions) { for (const auto [map_address, map_size] : unmapped_regions) {
const auto remap_res = const auto remap_res =
MapMemoryBlock(map_address, std::make_shared<PhysicalMemory>(map_size), 0, MapMemoryBlock(map_address, std::make_shared<PhysicalMemory>(map_size), 0, map_size,
map_size, MemoryState::Heap, VMAPermission::None); MemoryState::Heap, VMAPermission::None);
ASSERT_MSG(remap_res.Succeeded(), "Failed to remap a memory block."); ASSERT_MSG(remap_res.Succeeded(), "Failed to remap a memory block.");
} }