The-Homebrew-Cloud/MemoryMappingModule
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Revert "Replace the Spinlock with a Mutex, flush the heap header"

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This reverts commit 60d000a277.
This commit is contained in:
Maschell 2021-12-03 11:44:53 +01:00
parent b981a93848
commit e11cf31b05
1 changed files with 5 additions and 11 deletions
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16
source/memory_mapping.cpp
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@ -11,11 +11,9 @@
#include "CThread.h" #include "CThread.h"
#include <cstring> #include <cstring>
#include <coreinit/debug.h> #include <coreinit/debug.h>
#include <coreinit/mutex.h>
#include <cstdio> #include <cstdio>
OSMutex allocFreeMutex; OSSpinLock allocFreeSpinlock;
// #define DEBUG_FUNCTION_LINE(x,...) // #define DEBUG_FUNCTION_LINE(x,...)
@ -384,11 +382,10 @@ void MemoryMapping_setupMemoryMapping() {
//readTestValuesFromMemory(); //readTestValuesFromMemory();
//runOnAllCores(writeSegmentRegister,&srTableCpy); //runOnAllCores(writeSegmentRegister,&srTableCpy);
OSInitMutex(&allocFreeMutex);
} }
void *MemoryMapping_allocEx(uint32_t size, int32_t align, bool videoOnly) { void *MemoryMapping_allocEx(uint32_t size, int32_t align, bool videoOnly) {
OSLockMutex(&allocFreeMutex); OSUninterruptibleSpinLock_Acquire(&allocFreeSpinlock);
void *res = nullptr; void *res = nullptr;
for (int32_t i = 0; /* waiting for a break */; i++) { for (int32_t i = 0; /* waiting for a break */; i++) {
if (mem_mapping[i].physical_addresses == nullptr) { if (mem_mapping[i].physical_addresses == nullptr) {
@ -403,8 +400,6 @@ void *MemoryMapping_allocEx(uint32_t size, int32_t align, bool videoOnly) {
continue; continue;
} }
DCFlushRange(heap, sizeof(MEMExpHeap));
res = MEMAllocFromExpHeapEx(heapHandle, size, align); res = MEMAllocFromExpHeapEx(heapHandle, size, align);
auto cur = heap->usedList.head; auto cur = heap->usedList.head;
while (cur != nullptr) { while (cur != nullptr) {
@ -420,7 +415,7 @@ void *MemoryMapping_allocEx(uint32_t size, int32_t align, bool videoOnly) {
break; break;
} }
} }
OSUnlockMutex(&allocFreeMutex); OSUninterruptibleSpinLock_Release(&allocFreeSpinlock);
return res; return res;
} }
@ -436,7 +431,7 @@ void MemoryMapping_free(void *ptr) {
if (ptr == nullptr) { if (ptr == nullptr) {
return; return;
} }
OSLockMutex(&allocFreeMutex); OSUninterruptibleSpinLock_Acquire(&allocFreeSpinlock);
auto ptr_val = (uint32_t) ptr; auto ptr_val = (uint32_t) ptr;
for (int32_t i = 0; /* waiting for a break */; i++) { for (int32_t i = 0; /* waiting for a break */; i++) {
if (mem_mapping[i].physical_addresses == nullptr) { if (mem_mapping[i].physical_addresses == nullptr) {
@ -447,7 +442,6 @@ void MemoryMapping_free(void *ptr) {
auto *heap = (MEMExpHeap *) heapHandle; auto *heap = (MEMExpHeap *) heapHandle;
MEMFreeToExpHeap((MEMHeapHandle) mem_mapping[i].effective_start_address, ptr); MEMFreeToExpHeap((MEMHeapHandle) mem_mapping[i].effective_start_address, ptr);
DCFlushRange(heap, sizeof(MEMExpHeap));
auto cur = heap->usedList.head; auto cur = heap->usedList.head;
while (cur != nullptr) { while (cur != nullptr) {
DCFlushRange(cur, sizeof(MEMExpHeapBlock)); DCFlushRange(cur, sizeof(MEMExpHeapBlock));
@ -461,7 +455,7 @@ void MemoryMapping_free(void *ptr) {
break; break;
} }
} }
OSUnlockMutex(&allocFreeMutex); OSUninterruptibleSpinLock_Release(&allocFreeSpinlock);
} }
uint32_t MemoryMapping_MEMGetAllocatableSize() { uint32_t MemoryMapping_MEMGetAllocatableSize() {