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Merge pull request #12869 from FernandoS27/smmu-fixes

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SMMU: A set of different fixes.
This commit is contained in:
liamwhite
2024-01-31 11:22:29 -05:00
committed by GitHub
parent a12a26e19b d57165df45
commit 22492b68b7
7 changed files with 190 additions and 80 deletions
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18
src/core/device_memory_manager.h
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@ -5,11 +5,13 @@
#include <array>
#include <atomic>
#include <bit>
#include <deque>
#include <memory>
#include <mutex>
#include "common/common_types.h"
#include "common/range_mutex.h"
#include "common/scratch_buffer.h"
#include "common/virtual_buffer.h"
@ -180,31 +182,35 @@ private:
}
Common::VirtualBuffer<VAddr> cpu_backing_address;
static constexpr size_t subentries = 8 / sizeof(u8);
using CounterType = u8;
using CounterAtomicType = std::atomic_uint8_t;
static constexpr size_t subentries = 8 / sizeof(CounterType);
static constexpr size_t subentries_mask = subentries - 1;
static constexpr size_t subentries_shift =
std::countr_zero(sizeof(u64)) - std::countr_zero(sizeof(CounterType));
class CounterEntry final {
public:
CounterEntry() = default;
std::atomic_uint8_t& Count(std::size_t page) {
CounterAtomicType& Count(std::size_t page) {
return values[page & subentries_mask];
}
const std::atomic_uint8_t& Count(std::size_t page) const {
const CounterAtomicType& Count(std::size_t page) const {
return values[page & subentries_mask];
}
private:
std::array<std::atomic_uint8_t, subentries> values{};
std::array<CounterAtomicType, subentries> values{};
};
static_assert(sizeof(CounterEntry) == subentries * sizeof(u8),
static_assert(sizeof(CounterEntry) == subentries * sizeof(CounterType),
"CounterEntry should be 8 bytes!");
static constexpr size_t num_counter_entries =
(1ULL << (device_virtual_bits - page_bits)) / subentries;
using CachedPages = std::array<CounterEntry, num_counter_entries>;
std::unique_ptr<CachedPages> cached_pages;
std::mutex counter_guard;
Common::RangeMutex counter_guard;
std::mutex mapping_guard;
};

63
src/core/device_memory_manager.inc
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@ -213,8 +213,8 @@ void DeviceMemoryManager<Traits>::Free(DAddr start, size_t size) {
}
template <typename Traits>
void DeviceMemoryManager<Traits>::Map(DAddr address, VAddr virtual_address, size_t size,
Asid asid, bool track) {
void DeviceMemoryManager<Traits>::Map(DAddr address, VAddr virtual_address, size_t size, Asid asid,
bool track) {
Core::Memory::Memory* process_memory = registered_processes[asid.id];
size_t start_page_d = address >> Memory::YUZU_PAGEBITS;
size_t num_pages = Common::AlignUp(size, Memory::YUZU_PAGESIZE) >> Memory::YUZU_PAGEBITS;
@ -508,12 +508,7 @@ void DeviceMemoryManager<Traits>::UnregisterProcess(Asid asid) {
template <typename Traits>
void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size, s32 delta) {
std::unique_lock<std::mutex> lk(counter_guard, std::defer_lock);
const auto Lock = [&] {
if (!lk) {
lk.lock();
}
};
Common::ScopedRangeLock lk(counter_guard, addr, size);
u64 uncache_begin = 0;
u64 cache_begin = 0;
u64 uncache_bytes = 0;
@ -524,22 +519,36 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
const size_t page_end = Common::DivCeil(addr + size, Memory::YUZU_PAGESIZE);
size_t page = addr >> Memory::YUZU_PAGEBITS;
auto [asid, base_vaddress] = ExtractCPUBacking(page);
size_t vpage = base_vaddress >> Memory::YUZU_PAGEBITS;
auto* memory_device_inter = registered_processes[asid.id];
const auto release_pending = [&] {
if (uncache_bytes > 0) {
MarkRegionCaching(memory_device_inter, uncache_begin << Memory::YUZU_PAGEBITS,
uncache_bytes, false);
uncache_bytes = 0;
}
if (cache_bytes > 0) {
MarkRegionCaching(memory_device_inter, cache_begin << Memory::YUZU_PAGEBITS,
cache_bytes, true);
cache_bytes = 0;
}
};
for (; page != page_end; ++page) {
std::atomic_uint8_t& count = cached_pages->at(page >> 3).Count(page);
CounterAtomicType& count = cached_pages->at(page >> subentries_shift).Count(page);
auto [asid_2, vpage] = ExtractCPUBacking(page);
vpage >>= Memory::YUZU_PAGEBITS;
if (delta > 0) {
ASSERT_MSG(count.load(std::memory_order::relaxed) < std::numeric_limits<u8>::max(),
"Count may overflow!");
} else if (delta < 0) {
ASSERT_MSG(count.load(std::memory_order::relaxed) > 0, "Count may underflow!");
} else {
ASSERT_MSG(false, "Delta must be non-zero!");
if (vpage == 0) [[unlikely]] {
release_pending();
continue;
}
if (asid.id != asid_2.id) [[unlikely]] {
release_pending();
memory_device_inter = registered_processes[asid_2.id];
}
// Adds or subtracts 1, as count is a unsigned 8-bit value
count.fetch_add(static_cast<u8>(delta), std::memory_order_release);
count.fetch_add(static_cast<CounterType>(delta), std::memory_order_release);
// Assume delta is either -1 or 1
if (count.load(std::memory_order::relaxed) == 0) {
@ -548,7 +557,6 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
}
uncache_bytes += Memory::YUZU_PAGESIZE;
} else if (uncache_bytes > 0) {
Lock();
MarkRegionCaching(memory_device_inter, uncache_begin << Memory::YUZU_PAGEBITS,
uncache_bytes, false);
uncache_bytes = 0;
@ -559,23 +567,12 @@ void DeviceMemoryManager<Traits>::UpdatePagesCachedCount(DAddr addr, size_t size
}
cache_bytes += Memory::YUZU_PAGESIZE;
} else if (cache_bytes > 0) {
Lock();
MarkRegionCaching(memory_device_inter, cache_begin << Memory::YUZU_PAGEBITS, cache_bytes,
true);
MarkRegionCaching(memory_device_inter, cache_begin << Memory::YUZU_PAGEBITS,
cache_bytes, true);
cache_bytes = 0;
}
vpage++;
}
if (uncache_bytes > 0) {
Lock();
MarkRegionCaching(memory_device_inter, uncache_begin << Memory::YUZU_PAGEBITS, uncache_bytes,
false);
}
if (cache_bytes > 0) {
Lock();
MarkRegionCaching(memory_device_inter, cache_begin << Memory::YUZU_PAGEBITS, cache_bytes,
true);
}
release_pending();
}
} // namespace Core

4
src/core/hle/service/nvdrv/core/container.cpp
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@ -83,7 +83,9 @@ SessionId Container::OpenSession(Kernel::KProcess* process) {
// Check if this memory block is heap.
if (svc_mem_info.state == Kernel::Svc::MemoryState::Normal) {
if (svc_mem_info.size > region_size) {
if (region_start + region_size == svc_mem_info.base_address) {
region_size += svc_mem_info.size;
} else if (svc_mem_info.size > region_size) {
region_size = svc_mem_info.size;
region_start = svc_mem_info.base_address;
}