diff options
Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r-- | src/core/hle/kernel/k_resource_limit.cpp | 13 | ||||
-rw-r--r-- | src/core/hle/kernel/k_resource_limit.h | 12 | ||||
-rw-r--r-- | src/core/hle/kernel/kernel.cpp | 44 | ||||
-rw-r--r-- | src/core/hle/kernel/process.cpp | 24 | ||||
-rw-r--r-- | src/core/hle/kernel/svc.cpp | 2 |
5 files changed, 38 insertions, 57 deletions
diff --git a/src/core/hle/kernel/k_resource_limit.cpp b/src/core/hle/kernel/k_resource_limit.cpp index d7a4a38e6..d05b34ea3 100644 --- a/src/core/hle/kernel/k_resource_limit.cpp +++ b/src/core/hle/kernel/k_resource_limit.cpp @@ -2,21 +2,16 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. -// This file references various implementation details from Atmosphere, an open-source firmware for -// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX. - #include "common/assert.h" -#include "core/core.h" #include "core/core_timing.h" -#include "core/core_timing_util.h" #include "core/hle/kernel/k_resource_limit.h" #include "core/hle/kernel/svc_results.h" namespace Kernel { constexpr s64 DefaultTimeout = 10000000000; // 10 seconds -KResourceLimit::KResourceLimit(KernelCore& kernel, Core::System& system) - : Object{kernel}, lock{kernel}, cond_var{kernel}, kernel{kernel}, system(system) {} +KResourceLimit::KResourceLimit(KernelCore& kernel, const Core::Timing::CoreTiming& core_timing_) + : Object{kernel}, lock{kernel}, cond_var{kernel}, core_timing(core_timing_) {} KResourceLimit::~KResourceLimit() = default; s64 KResourceLimit::GetLimitValue(LimitableResource which) const { @@ -83,7 +78,7 @@ ResultCode KResourceLimit::SetLimitValue(LimitableResource which, s64 value) { } bool KResourceLimit::Reserve(LimitableResource which, s64 value) { - return Reserve(which, value, system.CoreTiming().GetGlobalTimeNs().count() + DefaultTimeout); + return Reserve(which, value, core_timing.GetGlobalTimeNs().count() + DefaultTimeout); } bool KResourceLimit::Reserve(LimitableResource which, s64 value, s64 timeout) { @@ -114,7 +109,7 @@ bool KResourceLimit::Reserve(LimitableResource which, s64 value, s64 timeout) { } if (current_hints[index] + value <= limit_values[index] && - (timeout < 0 || system.CoreTiming().GetGlobalTimeNs().count() < timeout)) { + (timeout < 0 || core_timing.GetGlobalTimeNs().count() < timeout)) { waiter_count++; cond_var.Wait(&lock, timeout); waiter_count--; diff --git a/src/core/hle/kernel/k_resource_limit.h b/src/core/hle/kernel/k_resource_limit.h index 58ae456f1..4542317d0 100644 --- a/src/core/hle/kernel/k_resource_limit.h +++ b/src/core/hle/kernel/k_resource_limit.h @@ -2,9 +2,6 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. -// This file references various implementation details from Atmosphere, an open-source firmware for -// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX. - #pragma once #include <array> @@ -15,8 +12,8 @@ union ResultCode; -namespace Core { -class System; +namespace Core::Timing { +class CoreTiming; } namespace Kernel { @@ -37,7 +34,7 @@ constexpr bool IsValidResourceType(LimitableResource type) { class KResourceLimit final : public Object { public: - explicit KResourceLimit(KernelCore& kernel, Core::System& system); + explicit KResourceLimit(KernelCore& kernel, const Core::Timing::CoreTiming& core_timing_); ~KResourceLimit(); s64 GetLimitValue(LimitableResource which) const; @@ -75,7 +72,6 @@ private: mutable KLightLock lock; s32 waiter_count{}; KLightConditionVariable cond_var; - KernelCore& kernel; - Core::System& system; + const Core::Timing::CoreTiming& core_timing; }; } // namespace Kernel diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp index 8fd990577..5c4f45ab4 100644 --- a/src/core/hle/kernel/kernel.cpp +++ b/src/core/hle/kernel/kernel.cpp @@ -67,8 +67,13 @@ struct KernelCore::Impl { is_phantom_mode_for_singlecore = false; InitializePhysicalCores(); - InitializeSystemResourceLimit(kernel, system); - InitializeMemoryLayout(); + + // Derive the initial memory layout from the emulated board + KMemoryLayout memory_layout; + DeriveInitialMemoryLayout(memory_layout); + InitializeMemoryLayout(memory_layout); + InitializeSystemResourceLimit(kernel, system.CoreTiming(), memory_layout); + InitializeSlabHeaps(); InitializeSchedulers(); InitializeSuspendThreads(); InitializePreemption(kernel); @@ -137,27 +142,33 @@ struct KernelCore::Impl { } // Creates the default system resource limit - void InitializeSystemResourceLimit(KernelCore& kernel, Core::System& system) { - system_resource_limit = std::make_shared<KResourceLimit>(kernel, system); + void InitializeSystemResourceLimit(KernelCore& kernel, + const Core::Timing::CoreTiming& core_timing, + const KMemoryLayout& memory_layout) { + system_resource_limit = std::make_shared<KResourceLimit>(kernel, core_timing); + const auto [total_size, kernel_size] = memory_layout.GetTotalAndKernelMemorySizes(); // If setting the default system values fails, then something seriously wrong has occurred. - ASSERT(system_resource_limit->SetLimitValue(LimitableResource::PhysicalMemory, 0x100000000) + ASSERT(system_resource_limit->SetLimitValue(LimitableResource::PhysicalMemory, total_size) .IsSuccess()); ASSERT(system_resource_limit->SetLimitValue(LimitableResource::Threads, 800).IsSuccess()); ASSERT(system_resource_limit->SetLimitValue(LimitableResource::Events, 900).IsSuccess()); ASSERT(system_resource_limit->SetLimitValue(LimitableResource::TransferMemory, 200) .IsSuccess()); ASSERT(system_resource_limit->SetLimitValue(LimitableResource::Sessions, 1133).IsSuccess()); + system_resource_limit->Reserve(LimitableResource::PhysicalMemory, kernel_size); - // Derived from recent software updates. The kernel reserves 27MB - constexpr u64 kernel_size{0x1b00000}; - if (!system_resource_limit->Reserve(LimitableResource::PhysicalMemory, kernel_size)) { - UNREACHABLE(); - } // Reserve secure applet memory, introduced in firmware 5.0.0 - constexpr u64 secure_applet_memory_size{0x400000}; + constexpr u64 secure_applet_memory_size{Common::Size_4_MB}; ASSERT(system_resource_limit->Reserve(LimitableResource::PhysicalMemory, secure_applet_memory_size)); + + // This memory seems to be reserved on hardware, but is not reserved/used by yuzu. + // Likely Horizon OS reserved memory + // TODO(ameerj): Derive the memory rather than hardcode it. + constexpr u64 unknown_reserved_memory{0x2f896000}; + ASSERT(system_resource_limit->Reserve(LimitableResource::PhysicalMemory, + unknown_reserved_memory)); } void InitializePreemption(KernelCore& kernel) { @@ -531,11 +542,7 @@ struct KernelCore::Impl { linear_region_start); } - void InitializeMemoryLayout() { - // Derive the initial memory layout from the emulated board - KMemoryLayout memory_layout; - DeriveInitialMemoryLayout(memory_layout); - + void InitializeMemoryLayout(const KMemoryLayout& memory_layout) { const auto system_pool = memory_layout.GetKernelSystemPoolRegionPhysicalExtents(); const auto applet_pool = memory_layout.GetKernelAppletPoolRegionPhysicalExtents(); const auto application_pool = memory_layout.GetKernelApplicationPoolRegionPhysicalExtents(); @@ -578,11 +585,14 @@ struct KernelCore::Impl { system.Kernel(), system.DeviceMemory(), nullptr, {time_phys_addr, time_size / PageSize}, KMemoryPermission::None, KMemoryPermission::Read, time_phys_addr, time_size, "Time:SharedMemory"); + } + void InitializeSlabHeaps() { // Allocate slab heaps user_slab_heap_pages = std::make_unique<KSlabHeap<Page>>(); - constexpr u64 user_slab_heap_size{0x1ef000}; + // TODO(ameerj): This should be derived, not hardcoded within the kernel + constexpr u64 user_slab_heap_size{0x3de000}; // Reserve slab heaps ASSERT( system_resource_limit->Reserve(LimitableResource::PhysicalMemory, user_slab_heap_size)); diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp index 420888439..e35deb8e2 100644 --- a/src/core/hle/kernel/process.cpp +++ b/src/core/hle/kernel/process.cpp @@ -120,9 +120,7 @@ std::shared_ptr<Process> Process::Create(Core::System& system, std::string name, std::shared_ptr<Process> process = std::make_shared<Process>(system); process->name = std::move(name); - // TODO: This is inaccurate - // The process should hold a reference to the kernel-wide resource limit. - process->resource_limit = std::make_shared<KResourceLimit>(kernel, system); + process->resource_limit = kernel.GetSystemResourceLimit(); process->status = ProcessStatus::Created; process->program_id = 0; process->process_id = type == ProcessType::KernelInternal ? kernel.CreateNewKernelProcessID() @@ -160,17 +158,13 @@ void Process::DecrementThreadCount() { } u64 Process::GetTotalPhysicalMemoryAvailable() const { - // TODO: This is expected to always return the application memory pool size after accurately - // reserving kernel resources. The current workaround uses a process-local resource limit of - // application memory pool size, which is inaccurate. const u64 capacity{resource_limit->GetFreeValue(LimitableResource::PhysicalMemory) + page_table->GetTotalHeapSize() + GetSystemResourceSize() + image_size + main_thread_stack_size}; - + ASSERT(capacity == kernel.MemoryManager().GetSize(KMemoryManager::Pool::Application)); if (capacity < memory_usage_capacity) { return capacity; } - return memory_usage_capacity; } @@ -272,10 +266,6 @@ ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, system_resource_size = metadata.GetSystemResourceSize(); image_size = code_size; - // Set initial resource limits - resource_limit->SetLimitValue( - LimitableResource::PhysicalMemory, - kernel.MemoryManager().GetSize(KMemoryManager::Pool::Application)); KScopedResourceReservation memory_reservation(resource_limit, LimitableResource::PhysicalMemory, code_size + system_resource_size); if (!memory_reservation.Succeeded()) { @@ -324,16 +314,6 @@ ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, UNREACHABLE(); } - // Set initial resource limits - resource_limit->SetLimitValue( - LimitableResource::PhysicalMemory, - kernel.MemoryManager().GetSize(KMemoryManager::Pool::Application)); - - resource_limit->SetLimitValue(LimitableResource::Threads, 608); - resource_limit->SetLimitValue(LimitableResource::Events, 700); - resource_limit->SetLimitValue(LimitableResource::TransferMemory, 128); - resource_limit->SetLimitValue(LimitableResource::Sessions, 894); - // Create TLS region tls_region_address = CreateTLSRegion(); memory_reservation.Commit(); diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index fcffc746d..bebb86154 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -2156,7 +2156,7 @@ static ResultCode CreateResourceLimit(Core::System& system, Handle* out_handle) LOG_DEBUG(Kernel_SVC, "called"); auto& kernel = system.Kernel(); - auto resource_limit = std::make_shared<KResourceLimit>(kernel, system); + auto resource_limit = std::make_shared<KResourceLimit>(kernel, system.CoreTiming()); auto* const current_process = kernel.CurrentProcess(); ASSERT(current_process != nullptr); |