archive/rpcs3
1
0
Fork 0
mirror of https://github.com/RPCS3/rpcs3.git synced 2025-07-14 18:58:36 +12:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Expand vm::g_addr_lock to 64 bit to support ranges

Browse source 
Optimization.
This commit is contained in:
Nekotekina 2020-04-15 21:06:08 +03:00
parent c7fe8567b8
commit 0f6a0d2740
1 changed files with 21 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

28
rpcs3/Emu/Memory/vm.cpp
View file

@ -63,7 +63,7 @@ namespace vm
thread_local atomic_t<cpu_thread*>* g_tls_locked = nullptr;
// Currently locked cache line
atomic_t<u32> g_addr_lock = 0;
atomic_t<u64> g_addr_lock = 0;
// Memory mutex: passive locks
std::array<atomic_t<cpu_thread*>, g_cfg.core.ppu_threads.max> g_locks{};
@ -100,7 +100,7 @@ namespace vm
static void _lock_shareable_cache(u8 /*value*/, u32 addr /*mutable*/, u32 end /*mutable*/)
{
// Special value to block new range locks
g_addr_lock = 1;
g_addr_lock = addr | u64{end - addr} << 32;
// Convert to 64K-page numbers
addr >>= 16;
@ -151,11 +151,25 @@ namespace vm
atomic_t<u64>* range_lock(u32 addr, u32 end)
{
static const auto test_addr = [](u32 target, u32 addr, u32 end) -> u64
static const auto test_addr = [](u64 target, u32 addr, u32 end) -> u64
{
if (target == 1)
if (const u32 target_size = static_cast<u32>(target >> 32))
{
// Shareable info is being modified
const u32 target_addr = static_cast<u32>(target);
if (addr >= target_addr + target_size || end <= target_addr)
{
// Outside of the locked range: proceed normally
if (g_shareable[addr >> 16])
{
addr &= 0xffff;
end = ((end - 1) & 0xffff) + 1;
}
return u64{end} << 32 | addr;
}
return 0;
}
@ -197,7 +211,7 @@ namespace vm
{
::reader_lock lock(g_mutex);
_ret = _register_range_lock(test_addr(-1, addr, end));
_ret = _register_range_lock(test_addr(UINT32_MAX, addr, end));
}
return _ret;
@ -416,7 +430,7 @@ namespace vm
}
// Unlock
g_addr_lock.compare_and_swap(1, 0);
g_addr_lock.release(0);
}
// Notify rsx that range has become valid
@ -566,7 +580,7 @@ namespace vm
}
// Unlock
g_addr_lock.compare_and_swap(1, 0);
g_addr_lock.release(0);
}
// Notify rsx to invalidate range