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kernel: conver KScopedLock, KScopedResourceReservation, KSessionRequest, KSharedMemory, KSpinLock

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This commit is contained in:
Liam
2023-03-06 22:47:06 -05:00
parent 7322c99e5f
commit d1b53c8d82
9 changed files with 99 additions and 97 deletions
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12
src/core/hle/kernel/k_scoped_lock.h
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@@ -18,15 +18,15 @@ std::is_reference_v<T>&& requires(T& t) {
template <typename T>
requires KLockable<T>
class [[nodiscard]] KScopedLock {
class KScopedLock {
public:
explicit KScopedLock(T* l) : lock_ptr(l) {
this->lock_ptr->Lock();
explicit KScopedLock(T* l) : m_lock(*l) {}
explicit KScopedLock(T& l) : m_lock(l) {
m_lock.Lock();
}
explicit KScopedLock(T& l) : KScopedLock(std::addressof(l)) {}
~KScopedLock() {
this->lock_ptr->Unlock();
m_lock.Unlock();
}
KScopedLock(const KScopedLock&) = delete;
@@ -36,7 +36,7 @@ public:
KScopedLock& operator=(KScopedLock&&) = delete;
private:
T* lock_ptr;
T& m_lock;
};
} // namespace Kernel

36
src/core/hle/kernel/k_scoped_resource_reservation.h
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@@ -12,20 +12,20 @@ namespace Kernel {
class KScopedResourceReservation {
public:
explicit KScopedResourceReservation(KResourceLimit* l, LimitableResource r, s64 v, s64 timeout)
: resource_limit(std::move(l)), value(v), resource(r) {
if (resource_limit && value) {
success = resource_limit->Reserve(resource, value, timeout);
: m_limit(l), m_value(v), m_resource(r) {
if (m_limit && m_value) {
m_succeeded = m_limit->Reserve(m_resource, m_value, timeout);
} else {
success = true;
m_succeeded = true;
}
}
explicit KScopedResourceReservation(KResourceLimit* l, LimitableResource r, s64 v = 1)
: resource_limit(std::move(l)), value(v), resource(r) {
if (resource_limit && value) {
success = resource_limit->Reserve(resource, value);
: m_limit(l), m_value(v), m_resource(r) {
if (m_limit && m_value) {
m_succeeded = m_limit->Reserve(m_resource, m_value);
} else {
success = true;
m_succeeded = true;
}
}
@@ -36,26 +36,26 @@ public:
: KScopedResourceReservation(p->GetResourceLimit(), r, v) {}
~KScopedResourceReservation() noexcept {
if (resource_limit && value && success) {
// resource was not committed, release the reservation.
resource_limit->Release(resource, value);
if (m_limit && m_value && m_succeeded) {
// Resource was not committed, release the reservation.
m_limit->Release(m_resource, m_value);
}
}
/// Commit the resource reservation, destruction of this object does not release the resource
void Commit() {
resource_limit = nullptr;
m_limit = nullptr;
}
[[nodiscard]] bool Succeeded() const {
return success;
bool Succeeded() const {
return m_succeeded;
}
private:
KResourceLimit* resource_limit{};
s64 value;
LimitableResource resource;
bool success;
KResourceLimit* m_limit{};
s64 m_value{};
LimitableResource m_resource{};
bool m_succeeded{};
};
} // namespace Kernel

16
src/core/hle/kernel/k_session_request.cpp
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@@ -14,46 +14,46 @@ Result KSessionRequest::SessionMappings::PushMap(VAddr client, VAddr server, siz
// Get the mapping.
Mapping* mapping;
if (index < NumStaticMappings) {
mapping = &m_static_mappings[index];
mapping = std::addressof(m_static_mappings[index]);
} else {
// Allocate a page for the extra mappings.
if (m_mappings == nullptr) {
KPageBuffer* page_buffer = KPageBuffer::Allocate(kernel);
KPageBuffer* page_buffer = KPageBuffer::Allocate(m_kernel);
R_UNLESS(page_buffer != nullptr, ResultOutOfMemory);
m_mappings = reinterpret_cast<Mapping*>(page_buffer);
}
mapping = &m_mappings[index - NumStaticMappings];
mapping = std::addressof(m_mappings[index - NumStaticMappings]);
}
// Set the mapping.
mapping->Set(client, server, size, state);
return ResultSuccess;
R_SUCCEED();
}
Result KSessionRequest::SessionMappings::PushSend(VAddr client, VAddr server, size_t size,
KMemoryState state) {
ASSERT(m_num_recv == 0);
ASSERT(m_num_exch == 0);
return this->PushMap(client, server, size, state, m_num_send++);
R_RETURN(this->PushMap(client, server, size, state, m_num_send++));
}
Result KSessionRequest::SessionMappings::PushReceive(VAddr client, VAddr server, size_t size,
KMemoryState state) {
ASSERT(m_num_exch == 0);
return this->PushMap(client, server, size, state, m_num_send + m_num_recv++);
R_RETURN(this->PushMap(client, server, size, state, m_num_send + m_num_recv++));
}
Result KSessionRequest::SessionMappings::PushExchange(VAddr client, VAddr server, size_t size,
KMemoryState state) {
return this->PushMap(client, server, size, state, m_num_send + m_num_recv + m_num_exch++);
R_RETURN(this->PushMap(client, server, size, state, m_num_send + m_num_recv + m_num_exch++));
}
void KSessionRequest::SessionMappings::Finalize() {
if (m_mappings) {
KPageBuffer::Free(kernel, reinterpret_cast<KPageBuffer*>(m_mappings));
KPageBuffer::Free(m_kernel, reinterpret_cast<KPageBuffer*>(m_mappings));
m_mappings = nullptr;
}
}

14
src/core/hle/kernel/k_session_request.h
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@@ -47,14 +47,14 @@ public:
}
private:
VAddr m_client_address;
VAddr m_server_address;
size_t m_size;
KMemoryState m_state;
VAddr m_client_address{};
VAddr m_server_address{};
size_t m_size{};
KMemoryState m_state{};
};
public:
explicit SessionMappings(KernelCore& kernel_) : kernel(kernel_) {}
explicit SessionMappings(KernelCore& kernel) : m_kernel(kernel) {}
void Initialize() {}
void Finalize();
@@ -149,8 +149,8 @@ public:
}
private:
KernelCore& kernel;
std::array<Mapping, NumStaticMappings> m_static_mappings;
KernelCore& m_kernel;
std::array<Mapping, NumStaticMappings> m_static_mappings{};
Mapping* m_mappings{};
u8 m_num_send{};
u8 m_num_recv{};

55
src/core/hle/kernel/k_shared_memory.cpp
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@@ -15,15 +15,15 @@ namespace Kernel {
KSharedMemory::KSharedMemory(KernelCore& kernel_) : KAutoObjectWithSlabHeapAndContainer{kernel_} {}
KSharedMemory::~KSharedMemory() = default;
Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* owner_process_,
Svc::MemoryPermission owner_permission_,
Svc::MemoryPermission user_permission_, std::size_t size_) {
Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory, KProcess* owner_process,
Svc::MemoryPermission owner_permission,
Svc::MemoryPermission user_permission, std::size_t size) {
// Set members.
owner_process = owner_process_;
device_memory = &device_memory_;
owner_permission = owner_permission_;
user_permission = user_permission_;
size = Common::AlignUp(size_, PageSize);
m_owner_process = owner_process;
m_device_memory = std::addressof(device_memory);
m_owner_permission = owner_permission;
m_user_permission = user_permission;
m_size = Common::AlignUp(size, PageSize);
const size_t num_pages = Common::DivideUp(size, PageSize);
@@ -32,7 +32,7 @@ Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* o
// Reserve memory for ourselves.
KScopedResourceReservation memory_reservation(reslimit, LimitableResource::PhysicalMemoryMax,
size_);
size);
R_UNLESS(memory_reservation.Succeeded(), ResultLimitReached);
// Allocate the memory.
@@ -40,26 +40,26 @@ Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* o
//! HACK: Open continuous mapping from sysmodule pool.
auto option = KMemoryManager::EncodeOption(KMemoryManager::Pool::Secure,
KMemoryManager::Direction::FromBack);
physical_address = kernel.MemoryManager().AllocateAndOpenContinuous(num_pages, 1, option);
R_UNLESS(physical_address != 0, ResultOutOfMemory);
m_physical_address = kernel.MemoryManager().AllocateAndOpenContinuous(num_pages, 1, option);
R_UNLESS(m_physical_address != 0, ResultOutOfMemory);
//! Insert the result into our page group.
page_group.emplace(kernel, &kernel.GetSystemSystemResource().GetBlockInfoManager());
page_group->AddBlock(physical_address, num_pages);
m_page_group.emplace(kernel, &kernel.GetSystemSystemResource().GetBlockInfoManager());
m_page_group->AddBlock(m_physical_address, num_pages);
// Commit our reservation.
memory_reservation.Commit();
// Set our resource limit.
resource_limit = reslimit;
resource_limit->Open();
m_resource_limit = reslimit;
m_resource_limit->Open();
// Mark initialized.
is_initialized = true;
m_is_initialized = true;
// Clear all pages in the memory.
for (const auto& block : *page_group) {
std::memset(device_memory_.GetPointer<void>(block.GetAddress()), 0, block.GetSize());
for (const auto& block : *m_page_group) {
std::memset(m_device_memory->GetPointer<void>(block.GetAddress()), 0, block.GetSize());
}
R_SUCCEED();
@@ -67,12 +67,12 @@ Result KSharedMemory::Initialize(Core::DeviceMemory& device_memory_, KProcess* o
void KSharedMemory::Finalize() {
// Close and finalize the page group.
page_group->Close();
page_group->Finalize();
m_page_group->Close();
m_page_group->Finalize();
// Release the memory reservation.
resource_limit->Release(LimitableResource::PhysicalMemoryMax, size);
resource_limit->Close();
m_resource_limit->Release(LimitableResource::PhysicalMemoryMax, m_size);
m_resource_limit->Close();
// Perform inherited finalization.
KAutoObjectWithSlabHeapAndContainer<KSharedMemory, KAutoObjectWithList>::Finalize();
@@ -81,26 +81,27 @@ void KSharedMemory::Finalize() {
Result KSharedMemory::Map(KProcess& target_process, VAddr address, std::size_t map_size,
Svc::MemoryPermission map_perm) {
// Validate the size.
R_UNLESS(size == map_size, ResultInvalidSize);
R_UNLESS(m_size == map_size, ResultInvalidSize);
// Validate the permission.
const Svc::MemoryPermission test_perm =
&target_process == owner_process ? owner_permission : user_permission;
std::addressof(target_process) == m_owner_process ? m_owner_permission : m_user_permission;
if (test_perm == Svc::MemoryPermission::DontCare) {
ASSERT(map_perm == Svc::MemoryPermission::Read || map_perm == Svc::MemoryPermission::Write);
} else {
R_UNLESS(map_perm == test_perm, ResultInvalidNewMemoryPermission);
}
R_RETURN(target_process.PageTable().MapPageGroup(address, *page_group, KMemoryState::Shared,
R_RETURN(target_process.PageTable().MapPageGroup(address, *m_page_group, KMemoryState::Shared,
ConvertToKMemoryPermission(map_perm)));
}
Result KSharedMemory::Unmap(KProcess& target_process, VAddr address, std::size_t unmap_size) {
// Validate the size.
R_UNLESS(size == unmap_size, ResultInvalidSize);
R_UNLESS(m_size == unmap_size, ResultInvalidSize);
R_RETURN(target_process.PageTable().UnmapPageGroup(address, *page_group, KMemoryState::Shared));
R_RETURN(
target_process.PageTable().UnmapPageGroup(address, *m_page_group, KMemoryState::Shared));
}
} // namespace Kernel

26
src/core/hle/kernel/k_shared_memory.h
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@@ -54,7 +54,7 @@ public:
* @return A pointer to the shared memory block from the specified offset
*/
u8* GetPointer(std::size_t offset = 0) {
return device_memory->GetPointer<u8>(physical_address + offset);
return m_device_memory->GetPointer<u8>(m_physical_address + offset);
}
/**
@@ -63,26 +63,26 @@ public:
* @return A pointer to the shared memory block from the specified offset
*/
const u8* GetPointer(std::size_t offset = 0) const {
return device_memory->GetPointer<u8>(physical_address + offset);
return m_device_memory->GetPointer<u8>(m_physical_address + offset);
}
void Finalize() override;
bool IsInitialized() const override {
return is_initialized;
return m_is_initialized;
}
static void PostDestroy([[maybe_unused]] uintptr_t arg) {}
static void PostDestroy(uintptr_t arg) {}
private:
Core::DeviceMemory* device_memory{};
KProcess* owner_process{};
std::optional<KPageGroup> page_group{};
Svc::MemoryPermission owner_permission{};
Svc::MemoryPermission user_permission{};
PAddr physical_address{};
std::size_t size{};
KResourceLimit* resource_limit{};
bool is_initialized{};
Core::DeviceMemory* m_device_memory{};
KProcess* m_owner_process{};
std::optional<KPageGroup> m_page_group{};
Svc::MemoryPermission m_owner_permission{};
Svc::MemoryPermission m_user_permission{};
PAddr m_physical_address{};
std::size_t m_size{};
KResourceLimit* m_resource_limit{};
bool m_is_initialized{};
};
} // namespace Kernel

17
src/core/hle/kernel/k_shared_memory_info.h
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@@ -18,25 +18,28 @@ public:
explicit KSharedMemoryInfo(KernelCore&) {}
KSharedMemoryInfo() = default;
constexpr void Initialize(KSharedMemory* shmem) {
shared_memory = shmem;
constexpr void Initialize(KSharedMemory* m) {
m_shared_memory = m;
m_reference_count = 0;
}
constexpr KSharedMemory* GetSharedMemory() const {
return shared_memory;
return m_shared_memory;
}
constexpr void Open() {
++reference_count;
++m_reference_count;
ASSERT(m_reference_count > 0);
}
constexpr bool Close() {
return (--reference_count) == 0;
ASSERT(m_reference_count > 0);
return (--m_reference_count) == 0;
}
private:
KSharedMemory* shared_memory{};
size_t reference_count{};
KSharedMemory* m_shared_memory{};
size_t m_reference_count{};
};
} // namespace Kernel

6
src/core/hle/kernel/k_spin_lock.cpp
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@@ -6,15 +6,15 @@
namespace Kernel {
void KSpinLock::Lock() {
lck.lock();
m_lock.lock();
}
void KSpinLock::Unlock() {
lck.unlock();
m_lock.unlock();
}
bool KSpinLock::TryLock() {
return lck.try_lock();
return m_lock.try_lock();
}
} // namespace Kernel

14
src/core/hle/kernel/k_spin_lock.h
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@@ -5,26 +5,24 @@
#include <mutex>
#include "common/common_funcs.h"
#include "core/hle/kernel/k_scoped_lock.h"
namespace Kernel {
class KSpinLock {
public:
KSpinLock() = default;
explicit KSpinLock() = default;
KSpinLock(const KSpinLock&) = delete;
KSpinLock& operator=(const KSpinLock&) = delete;
KSpinLock(KSpinLock&&) = delete;
KSpinLock& operator=(KSpinLock&&) = delete;
YUZU_NON_COPYABLE(KSpinLock);
YUZU_NON_MOVEABLE(KSpinLock);
void Lock();
void Unlock();
[[nodiscard]] bool TryLock();
bool TryLock();
private:
std::mutex lck;
std::mutex m_lock;
};
// TODO(bunnei): Alias for now, in case we want to implement these accurately in the future.