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Use a different approach for the LRU toggle

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This commit is contained in:
MrPurple666 2025-04-30 16:11:15 -03:00
parent b5bec371ae
commit bb2f527b16
3 changed files with 23 additions and 9 deletions
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3
src/core/arm/nce/lru_cache.h
View file

@ -3,6 +3,7 @@
#include <list>
#include <unordered_map>
#include <optional>
#include "common/logging/log.h"
template<typename KeyType, typename ValueType>
class LRUCache {
@ -15,6 +16,7 @@ private:
public:
explicit LRUCache(size_t capacity, bool enabled = true) : enabled(enabled), capacity(capacity) {
cache_map.reserve(capacity);
LOG_WARNING(Core, "LRU Cache initialized with state: {}", enabled ? "enabled" : "disabled");
}
// Returns pointer to value if found, nullptr otherwise
@ -67,6 +69,7 @@ public:
// Enable or disable the LRU cache
void setEnabled(bool state) {
enabled = state;
LOG_WARNING(Core, "LRU Cache state changed to: {}", state ? "enabled" : "disabled");
if (!enabled) {
clear();
}

2
src/core/arm/nce/patcher.cpp
View file

@ -23,6 +23,8 @@ constexpr size_t MaxRelativeBranch = 128_MiB;
constexpr u32 ModuleCodeIndex = 0x24 / sizeof(u32);
Patcher::Patcher() : c(m_patch_instructions) {
LOG_WARNING(Core_ARM, "Patcher initialized with LRU cache {}",
patch_cache.isEnabled() ? "enabled" : "disabled");
// The first word of the patch section is always a branch to the first instruction of the
// module.
c.dw(0);

27
src/core/arm/nce/patcher.h
View file

@ -66,16 +66,25 @@ private:
LRUCache<uintptr_t, PatchTextAddress> patch_cache{CACHE_SIZE, Settings::values.lru_cache_enabled.GetValue()};
void BranchToPatch(uintptr_t module_dest) {
// Try to get existing patch entry from cache
if (auto* cached_patch = patch_cache.get(module_dest)) {
curr_patch->m_branch_to_patch_relocations.push_back({c.offset(), *cached_patch});
return;
}
if (patch_cache.isEnabled()) {
LOG_DEBUG(Core_ARM, "LRU cache lookup for address {:#x}", module_dest);
// Try to get existing patch entry from cache
if (auto* cached_patch = patch_cache.get(module_dest)) {
LOG_DEBUG(Core_ARM, "LRU cache hit for address {:#x}", module_dest);
curr_patch->m_branch_to_patch_relocations.push_back({c.offset(), *cached_patch});
return;
}
LOG_DEBUG(Core_ARM, "LRU cache miss for address {:#x}, creating new patch", module_dest);
// If not in cache, create new entry and cache it
const auto patch_addr = c.offset();
curr_patch->m_branch_to_patch_relocations.push_back({patch_addr, module_dest});
patch_cache.put(module_dest, patch_addr);
// If not in cache, create new entry and cache it
const auto patch_addr = c.offset();
curr_patch->m_branch_to_patch_relocations.push_back({patch_addr, module_dest});
patch_cache.put(module_dest, patch_addr);
} else {
LOG_DEBUG(Core_ARM, "LRU cache disabled - creating direct patch for address {:#x}", module_dest);
// LRU disabled - use pre-LRU approach
curr_patch->m_branch_to_patch_relocations.push_back({c.offset(), module_dest});
}
}
void BranchToModule(uintptr_t module_dest) {