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Code Issues Releases Wiki 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) {
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.
const auto mapped_size_result = SizeOfAllocatedVMAsInRange(target, size);
if (mapped_size_result.Failed()) {
@@ -324,10 +318,13 @@ ResultCode VMManager::MapPhysicalMemory(VAddr target, u64 size) {
// Keep track of the memory regions we unmap.
std::vector<std::pair<u64, u64>> mapped_regions;
ResultCode result = RESULT_SUCCESS;
// 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);
ASSERT(iter != vma_map.end());
@@ -381,12 +378,6 @@ ResultCode VMManager::MapPhysicalMemory(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.
const auto mapped_size_result = SizeOfUnmappablePhysicalMemoryInRange(target, size);
if (mapped_size_result.Failed()) {
@@ -401,10 +392,13 @@ ResultCode VMManager::UnmapPhysicalMemory(VAddr target, u64 size) {
// Keep track of the memory regions we unmap.
std::vector<std::pair<u64, u64>> unmapped_regions;
ResultCode result = RESULT_SUCCESS;
// 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);
ASSERT(iter != vma_map.end());
@@ -443,8 +437,8 @@ ResultCode VMManager::UnmapPhysicalMemory(VAddr target, u64 size) {
if (result.IsError()) {
for (const auto [map_address, map_size] : unmapped_regions) {
const auto remap_res =
MapMemoryBlock(map_address, std::make_shared<PhysicalMemory>(map_size), 0,
map_size, MemoryState::Heap, VMAPermission::None);
MapMemoryBlock(map_address, std::make_shared<PhysicalMemory>(map_size), 0, map_size,
MemoryState::Heap, VMAPermission::None);
ASSERT_MSG(remap_res.Succeeded(), "Failed to remap a memory block.");
}