mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
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448 lines
24 KiB
C++
448 lines
24 KiB
C++
/*
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* Copyright (c) Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stratosphere.hpp>
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#include "pm_resource_manager.hpp"
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namespace ams::pm::resource {
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namespace {
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constexpr svc::LimitableResource LimitableResources[] = {
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svc::LimitableResource_PhysicalMemoryMax,
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svc::LimitableResource_ThreadCountMax,
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svc::LimitableResource_EventCountMax,
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svc::LimitableResource_TransferMemoryCountMax,
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svc::LimitableResource_SessionCountMax,
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};
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/* Definitions for limit differences over time. */
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constexpr size_t ExtraSystemMemorySize400 = 10_MB;
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constexpr size_t ReservedMemorySize600 = 5_MB;
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/* Atmosphere always allocates extra memory for system usage. */
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constexpr size_t ExtraSystemMemorySizeAtmosphere = 24_MB;
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/* Desired extra threads. */
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constexpr u64 BaseApplicationThreads = 96;
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constexpr u64 BaseAppletThreads = 96;
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constexpr u64 BaseSystemThreads = 800 - BaseAppletThreads - BaseApplicationThreads;
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constexpr s64 ExtraSystemThreads = 1024 - BaseSystemThreads;
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constexpr s64 ExtraApplicationThreads = 256 - BaseApplicationThreads;
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constexpr s64 ExtraAppletThreads = 256 - BaseAppletThreads;
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static_assert(ExtraSystemThreads >= 0);
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static_assert(ExtraApplicationThreads >= 0);
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static_assert(ExtraAppletThreads >= 0);
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/* Globals. */
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constinit os::SdkMutex g_resource_limit_lock;
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constinit os::NativeHandle g_resource_limit_handles[ResourceLimitGroup_Count];
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constinit spl::MemoryArrangement g_memory_arrangement = spl::MemoryArrangement_Standard;
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constinit u64 g_system_memory_boost_size = 0;
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constinit u64 g_extra_threads_available[ResourceLimitGroup_Count];
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constinit u64 g_resource_limits[ResourceLimitGroup_Count][svc::LimitableResource_Count] = {
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[ResourceLimitGroup_System] = {
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[svc::LimitableResource_PhysicalMemoryMax] = 0, /* Initialized dynamically later. */
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[svc::LimitableResource_ThreadCountMax] = BaseSystemThreads,
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[svc::LimitableResource_EventCountMax] = 0, /* Initialized dynamically later. */
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[svc::LimitableResource_TransferMemoryCountMax] = 0, /* Initialized dynamically later. */
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[svc::LimitableResource_SessionCountMax] = 0, /* Initialized dynamically later. */
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},
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[ResourceLimitGroup_Application] = {
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[svc::LimitableResource_PhysicalMemoryMax] = 0, /* Initialized dynamically later. */
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[svc::LimitableResource_ThreadCountMax] = BaseApplicationThreads,
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[svc::LimitableResource_EventCountMax] = 0,
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[svc::LimitableResource_TransferMemoryCountMax] = 32,
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[svc::LimitableResource_SessionCountMax] = 1,
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},
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[ResourceLimitGroup_Applet] = {
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[svc::LimitableResource_PhysicalMemoryMax] = 0, /* Initialized dynamically later. */
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[svc::LimitableResource_ThreadCountMax] = BaseAppletThreads,
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[svc::LimitableResource_EventCountMax] = 0,
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[svc::LimitableResource_TransferMemoryCountMax] = 32,
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[svc::LimitableResource_SessionCountMax] = 5,
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},
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};
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constinit u64 g_memory_resource_limits[spl::MemoryArrangement_Count][ResourceLimitGroup_Count] = {
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[spl::MemoryArrangement_Standard] = {
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[ResourceLimitGroup_System] = 269_MB,
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[ResourceLimitGroup_Application] = 3285_MB,
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[ResourceLimitGroup_Applet] = 535_MB,
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},
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[spl::MemoryArrangement_StandardForAppletDev] = {
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[ResourceLimitGroup_System] = 481_MB,
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[ResourceLimitGroup_Application] = 2048_MB,
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[ResourceLimitGroup_Applet] = 1560_MB,
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},
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[spl::MemoryArrangement_StandardForSystemDev] = {
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[ResourceLimitGroup_System] = 328_MB,
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[ResourceLimitGroup_Application] = 3285_MB,
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[ResourceLimitGroup_Applet] = 476_MB,
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},
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[spl::MemoryArrangement_Expanded] = {
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[ResourceLimitGroup_System] = 653_MB,
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[ResourceLimitGroup_Application] = 4916_MB,
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[ResourceLimitGroup_Applet] = 568_MB,
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},
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[spl::MemoryArrangement_ExpandedForAppletDev] = {
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[ResourceLimitGroup_System] = 653_MB,
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[ResourceLimitGroup_Application] = 3285_MB,
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[ResourceLimitGroup_Applet] = 2199_MB,
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},
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};
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/* Helpers. */
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Result SetMemoryResourceLimitLimitValue(ResourceLimitGroup group, u64 new_memory_limit) {
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const u64 old_memory_limit = g_resource_limits[group][svc::LimitableResource_PhysicalMemoryMax];
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g_resource_limits[group][svc::LimitableResource_PhysicalMemoryMax] = new_memory_limit;
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/* Restore the old memory limit if we fail. */
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ON_RESULT_FAILURE { g_resource_limits[group][svc::LimitableResource_PhysicalMemoryMax] = old_memory_limit; };
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/* Set the resource limit. */
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R_RETURN(svc::SetResourceLimitLimitValue(GetResourceLimitHandle(group), svc::LimitableResource_PhysicalMemoryMax, g_resource_limits[group][svc::LimitableResource_PhysicalMemoryMax]));
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}
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Result SetResourceLimitLimitValues(ResourceLimitGroup group, u64 new_memory_limit) {
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/* First, set memory limit. */
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R_TRY(SetMemoryResourceLimitLimitValue(group, new_memory_limit));
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/* Set other limit values. */
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for (size_t i = 0; i < svc::LimitableResource_Count; i++) {
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const auto resource = LimitableResources[i];
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if (resource == svc::LimitableResource_PhysicalMemoryMax) {
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continue;
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}
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R_TRY(svc::SetResourceLimitLimitValue(GetResourceLimitHandle(group), resource, g_resource_limits[group][resource]));
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}
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R_SUCCEED();
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}
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inline ResourceLimitGroup GetResourceLimitGroup(const ldr::ProgramInfo *info) {
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switch (info->flags & ldr::ProgramInfoFlag_ApplicationTypeMask) {
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case ldr::ProgramInfoFlag_Application:
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return ResourceLimitGroup_Application;
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case ldr::ProgramInfoFlag_Applet:
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return ResourceLimitGroup_Applet;
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default:
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return ResourceLimitGroup_System;
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}
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}
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void WaitResourceAvailable(ResourceLimitGroup group) {
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const auto reslimit_hnd = GetResourceLimitHandle(group);
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for (size_t i = 0; i < svc::LimitableResource_Count; i++) {
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const auto resource = LimitableResources[i];
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s64 value = 0;
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while (true) {
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R_ABORT_UNLESS(svc::GetResourceLimitCurrentValue(&value, reslimit_hnd, resource));
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if (value == 0) {
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break;
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}
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os::SleepThread(TimeSpan::FromMilliSeconds(1));
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}
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}
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}
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void WaitApplicationMemoryAvailable() {
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u64 value = 0;
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while (true) {
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R_ABORT_UNLESS(svc::GetSystemInfo(&value, svc::SystemInfoType_UsedPhysicalMemorySize, svc::InvalidHandle, svc::PhysicalMemorySystemInfo_Application));
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if (value == 0) {
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break;
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}
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os::SleepThread(TimeSpan::FromMilliSeconds(1));
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}
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}
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bool IsKTraceEnabled() {
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u64 value = 0;
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R_ABORT_UNLESS(svc::GetInfo(std::addressof(value), svc::InfoType_MesosphereMeta, svc::InvalidHandle, svc::MesosphereMetaInfo_IsKTraceEnabled));
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return value != 0;
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}
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ALWAYS_INLINE Result BoostThreadResourceLimitLocked(ResourceLimitGroup group) {
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AMS_ASSERT(g_resource_limit_lock.IsLockedByCurrentThread());
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/* Set new limit. */
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const s64 new_thread_count = g_resource_limits[group][svc::LimitableResource_ThreadCountMax] + g_extra_threads_available[group];
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R_TRY(svc::SetResourceLimitLimitValue(GetResourceLimitHandle(group), svc::LimitableResource_ThreadCountMax, new_thread_count));
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/* Record that we did so. */
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g_resource_limits[group][svc::LimitableResource_ThreadCountMax] = new_thread_count;
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g_extra_threads_available[group] = 0;
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R_SUCCEED();
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}
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template<auto GetResourceLimitValueImpl>
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ALWAYS_INLINE Result GetResourceLimitValuesImpl(ResourceLimitGroup group, pm::ResourceLimitValues *out) {
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/* Sanity check group. */
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AMS_ABORT_UNLESS(group < ResourceLimitGroup_Count);
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/* Get handle. */
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const auto handle = GetResourceLimitHandle(group);
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/* Get values. */
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int64_t values[svc::LimitableResource_Count];
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R_ABORT_UNLESS(GetResourceLimitValueImpl(std::addressof(values[svc::LimitableResource_PhysicalMemoryMax]), handle, svc::LimitableResource_PhysicalMemoryMax));
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R_ABORT_UNLESS(GetResourceLimitValueImpl(std::addressof(values[svc::LimitableResource_ThreadCountMax]), handle, svc::LimitableResource_ThreadCountMax));
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R_ABORT_UNLESS(GetResourceLimitValueImpl(std::addressof(values[svc::LimitableResource_EventCountMax]), handle, svc::LimitableResource_EventCountMax));
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R_ABORT_UNLESS(GetResourceLimitValueImpl(std::addressof(values[svc::LimitableResource_TransferMemoryCountMax]), handle, svc::LimitableResource_TransferMemoryCountMax));
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R_ABORT_UNLESS(GetResourceLimitValueImpl(std::addressof(values[svc::LimitableResource_SessionCountMax]), handle, svc::LimitableResource_SessionCountMax));
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/* Set to output. */
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out->physical_memory = values[svc::LimitableResource_PhysicalMemoryMax];
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out->thread_count = values[svc::LimitableResource_ThreadCountMax];
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out->event_count = values[svc::LimitableResource_EventCountMax];
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out->transfer_memory_count = values[svc::LimitableResource_TransferMemoryCountMax];
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out->session_count = values[svc::LimitableResource_SessionCountMax];
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R_SUCCEED();
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}
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}
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/* Resource API. */
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Result InitializeResourceManager() {
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/* Create resource limit handles. */
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for (size_t i = 0; i < ResourceLimitGroup_Count; i++) {
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if (i == ResourceLimitGroup_System) {
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u64 value = 0;
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R_ABORT_UNLESS(svc::GetInfo(&value, svc::InfoType_ResourceLimit, svc::InvalidHandle, 0));
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g_resource_limit_handles[i] = static_cast<svc::Handle>(value);
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} else {
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R_ABORT_UNLESS(svc::CreateResourceLimit(g_resource_limit_handles + i));
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}
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}
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/* Adjust memory limits based on hos firmware version. */
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const auto hos_version = hos::GetVersion();
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if (hos_version >= hos::Version_4_0_0) {
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/* 4.0.0 took memory away from applet and gave it to system, for the Standard and StandardForSystemDev profiles. */
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g_memory_resource_limits[spl::MemoryArrangement_Standard][ResourceLimitGroup_System] += ExtraSystemMemorySize400;
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g_memory_resource_limits[spl::MemoryArrangement_Standard][ResourceLimitGroup_Applet] -= ExtraSystemMemorySize400;
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g_memory_resource_limits[spl::MemoryArrangement_StandardForSystemDev][ResourceLimitGroup_System] += ExtraSystemMemorySize400;
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g_memory_resource_limits[spl::MemoryArrangement_StandardForSystemDev][ResourceLimitGroup_Applet] -= ExtraSystemMemorySize400;
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}
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/* Determine system resource counts. */
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{
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/* Get the total resource counts. */
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s64 total_events, total_transfer_memories, total_sessions;
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R_ABORT_UNLESS(svc::GetResourceLimitLimitValue(std::addressof(total_events), GetResourceLimitHandle(ResourceLimitGroup_System), svc::LimitableResource_EventCountMax));
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R_ABORT_UNLESS(svc::GetResourceLimitLimitValue(std::addressof(total_transfer_memories), GetResourceLimitHandle(ResourceLimitGroup_System), svc::LimitableResource_TransferMemoryCountMax));
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R_ABORT_UNLESS(svc::GetResourceLimitLimitValue(std::addressof(total_sessions), GetResourceLimitHandle(ResourceLimitGroup_System), svc::LimitableResource_SessionCountMax));
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/* Determine system counts. */
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const s64 sys_events = total_events - (g_resource_limits[ResourceLimitGroup_Application][svc::LimitableResource_EventCountMax] + g_resource_limits[ResourceLimitGroup_Applet][svc::LimitableResource_EventCountMax]);
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const s64 sys_transfer_memories = total_transfer_memories - (g_resource_limits[ResourceLimitGroup_Application][svc::LimitableResource_TransferMemoryCountMax] + g_resource_limits[ResourceLimitGroup_Applet][svc::LimitableResource_TransferMemoryCountMax]);
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const s64 sys_sessions = total_sessions - (g_resource_limits[ResourceLimitGroup_Application][svc::LimitableResource_SessionCountMax] + g_resource_limits[ResourceLimitGroup_Applet][svc::LimitableResource_SessionCountMax]);
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/* Check system counts. */
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AMS_ABORT_UNLESS(sys_events >= 0);
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AMS_ABORT_UNLESS(sys_transfer_memories >= 0);
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AMS_ABORT_UNLESS(sys_sessions >= 0);
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/* Set system counts. */
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g_resource_limits[ResourceLimitGroup_System][svc::LimitableResource_EventCountMax] = sys_events;
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g_resource_limits[ResourceLimitGroup_System][svc::LimitableResource_TransferMemoryCountMax] = sys_transfer_memories;
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g_resource_limits[ResourceLimitGroup_System][svc::LimitableResource_SessionCountMax] = sys_sessions;
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}
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/* Determine extra application threads. */
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{
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/* Get total threads available. */
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s64 total_threads;
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R_ABORT_UNLESS(svc::GetResourceLimitLimitValue(std::addressof(total_threads), GetResourceLimitHandle(ResourceLimitGroup_System), svc::LimitableResource_ThreadCountMax));
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/* Check that we have enough threads. */
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const s64 required_threads = g_resource_limits[ResourceLimitGroup_System][svc::LimitableResource_ThreadCountMax] + g_resource_limits[ResourceLimitGroup_Application][svc::LimitableResource_ThreadCountMax] + g_resource_limits[ResourceLimitGroup_Applet][svc::LimitableResource_ThreadCountMax];
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AMS_ABORT_UNLESS(total_threads >= required_threads);
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/* Set the number of extra threads. */
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const s64 extra_threads = total_threads - required_threads;
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if constexpr (true /* TODO: Should we expose the old "all extra threads are application" behavior? Seems pointless. */) {
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if (extra_threads > 0) {
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/* If we have any extra threads at all, require that we have enough. */
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AMS_ABORT_UNLESS(extra_threads >= (ExtraSystemThreads + ExtraApplicationThreads + ExtraAppletThreads));
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g_extra_threads_available[ResourceLimitGroup_System] += ExtraSystemThreads;
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g_extra_threads_available[ResourceLimitGroup_Application] += ExtraApplicationThreads;
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g_extra_threads_available[ResourceLimitGroup_Applet] += ExtraAppletThreads;
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}
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} else {
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g_extra_threads_available[ResourceLimitGroup_Application] = extra_threads;
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}
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}
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/* Choose and initialize memory arrangement. */
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const bool use_dynamic_memory_arrangement = (hos_version >= hos::Version_5_0_0);
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if (use_dynamic_memory_arrangement) {
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/* 6.0.0 retrieves memory limit information from the kernel, rather than using a hardcoded profile. */
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g_memory_arrangement = spl::MemoryArrangement_Dynamic;
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/* Get total memory available. */
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s64 total_memory = 0;
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R_ABORT_UNLESS(svc::GetResourceLimitLimitValue(&total_memory, GetResourceLimitHandle(ResourceLimitGroup_System), svc::LimitableResource_PhysicalMemoryMax));
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/* Get and save application + applet memory. */
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R_ABORT_UNLESS(svc::GetSystemInfo(std::addressof(g_memory_resource_limits[spl::MemoryArrangement_Dynamic][ResourceLimitGroup_Application]), svc::SystemInfoType_TotalPhysicalMemorySize, svc::InvalidHandle, svc::PhysicalMemorySystemInfo_Application));
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R_ABORT_UNLESS(svc::GetSystemInfo(std::addressof(g_memory_resource_limits[spl::MemoryArrangement_Dynamic][ResourceLimitGroup_Applet]), svc::SystemInfoType_TotalPhysicalMemorySize, svc::InvalidHandle, svc::PhysicalMemorySystemInfo_Applet));
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const s64 application_size = g_memory_resource_limits[spl::MemoryArrangement_Dynamic][ResourceLimitGroup_Application];
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const s64 applet_size = g_memory_resource_limits[spl::MemoryArrangement_Dynamic][ResourceLimitGroup_Applet];
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const s64 reserved_non_system_size = (application_size + applet_size + ReservedMemorySize600);
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/* Ensure there's enough memory for the system region. */
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AMS_ABORT_UNLESS(reserved_non_system_size < total_memory);
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g_memory_resource_limits[spl::MemoryArrangement_Dynamic][ResourceLimitGroup_System] = total_memory - reserved_non_system_size;
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} else {
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/* Older system versions retrieve memory arrangement from spl, and use hardcoded profiles. */
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g_memory_arrangement = spl::GetMemoryArrangement();
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/* Adjust memory limits for atmosphere. */
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/* We take memory away from applet normally, but away from application on < 3.0.0 to avoid a rare hang on boot. */
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const size_t extra_memory_size = ExtraSystemMemorySizeAtmosphere;
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const auto src_group = hos_version >= hos::Version_3_0_0 ? ResourceLimitGroup_Applet : ResourceLimitGroup_Application;
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for (size_t i = 0; i < spl::MemoryArrangement_Count; i++) {
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g_memory_resource_limits[i][ResourceLimitGroup_System] += extra_memory_size;
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g_memory_resource_limits[i][src_group] -= extra_memory_size;
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}
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/* If KTrace is enabled, account for that by subtracting the memory from the applet pool. */
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if (IsKTraceEnabled()) {
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constexpr size_t KTraceBufferSize = 16_MB;
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for (size_t i = 0; i < spl::MemoryArrangement_Count; i++) {
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g_memory_resource_limits[i][ResourceLimitGroup_Applet] -= KTraceBufferSize;
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}
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}
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}
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/* Actually set resource limits. */
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{
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std::scoped_lock lk(g_resource_limit_lock);
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for (size_t group = 0; group < ResourceLimitGroup_Count; group++) {
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R_ABORT_UNLESS(SetResourceLimitLimitValues(static_cast<ResourceLimitGroup>(group), g_memory_resource_limits[g_memory_arrangement][group]));
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}
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}
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R_SUCCEED();
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}
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Result BoostSystemMemoryResourceLimit(u64 boost_size) {
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/* Don't allow all application memory to be taken away. */
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R_UNLESS(boost_size <= g_memory_resource_limits[g_memory_arrangement][ResourceLimitGroup_Application], pm::ResultInvalidSize());
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const u64 new_app_size = g_memory_resource_limits[g_memory_arrangement][ResourceLimitGroup_Application] - boost_size;
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{
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std::scoped_lock lk(g_resource_limit_lock);
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if (hos::GetVersion() >= hos::Version_5_0_0) {
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/* Starting in 5.0.0, PM does not allow for only one of the sets to fail. */
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if (boost_size < g_system_memory_boost_size) {
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R_TRY(svc::SetUnsafeLimit(boost_size));
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R_ABORT_UNLESS(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
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} else {
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R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
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R_ABORT_UNLESS(svc::SetUnsafeLimit(boost_size));
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}
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} else {
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const u64 new_sys_size = g_memory_resource_limits[g_memory_arrangement][ResourceLimitGroup_System] + boost_size;
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if (boost_size < g_system_memory_boost_size) {
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R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_System, new_sys_size));
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R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
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} else {
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R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_Application, new_app_size));
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R_TRY(SetMemoryResourceLimitLimitValue(ResourceLimitGroup_System, new_sys_size));
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}
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}
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g_system_memory_boost_size = boost_size;
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}
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R_SUCCEED();
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}
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Result BoostApplicationThreadResourceLimit() {
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std::scoped_lock lk(g_resource_limit_lock);
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/* Boost the limit. */
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R_TRY(BoostThreadResourceLimitLocked(ResourceLimitGroup_Application));
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R_SUCCEED();
|
|
}
|
|
|
|
Result BoostSystemThreadResourceLimit() {
|
|
std::scoped_lock lk(g_resource_limit_lock);
|
|
|
|
/* Boost the limits. */
|
|
R_TRY(BoostThreadResourceLimitLocked(ResourceLimitGroup_Applet));
|
|
R_TRY(BoostThreadResourceLimitLocked(ResourceLimitGroup_System));
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
os::NativeHandle GetResourceLimitHandle(ResourceLimitGroup group) {
|
|
return g_resource_limit_handles[group];
|
|
}
|
|
|
|
os::NativeHandle GetResourceLimitHandle(const ldr::ProgramInfo *info) {
|
|
return GetResourceLimitHandle(GetResourceLimitGroup(info));
|
|
}
|
|
|
|
void WaitResourceAvailable(const ldr::ProgramInfo *info) {
|
|
if (GetResourceLimitGroup(info) == ResourceLimitGroup_Application) {
|
|
WaitResourceAvailable(ResourceLimitGroup_Application);
|
|
if (hos::GetVersion() >= hos::Version_5_0_0) {
|
|
WaitApplicationMemoryAvailable();
|
|
}
|
|
}
|
|
}
|
|
|
|
Result GetCurrentResourceLimitValues(ResourceLimitGroup group, pm::ResourceLimitValues *out) {
|
|
R_RETURN(GetResourceLimitValuesImpl<::ams::svc::GetResourceLimitCurrentValue>(group, out));
|
|
}
|
|
|
|
Result GetPeakResourceLimitValues(ResourceLimitGroup group, pm::ResourceLimitValues *out) {
|
|
R_RETURN(GetResourceLimitValuesImpl<::ams::svc::GetResourceLimitPeakValue>(group, out));
|
|
}
|
|
|
|
Result GetLimitResourceLimitValues(ResourceLimitGroup group, pm::ResourceLimitValues *out) {
|
|
R_RETURN(GetResourceLimitValuesImpl<::ams::svc::GetResourceLimitLimitValue>(group, out));
|
|
}
|
|
|
|
Result GetResourceLimitValues(s64 *out_cur, s64 *out_lim, ResourceLimitGroup group, svc::LimitableResource resource) {
|
|
/* Do not allow out of bounds access. */
|
|
AMS_ABORT_UNLESS(group < ResourceLimitGroup_Count);
|
|
AMS_ABORT_UNLESS(resource < svc::LimitableResource_Count);
|
|
|
|
const auto reslimit_hnd = GetResourceLimitHandle(group);
|
|
R_TRY(svc::GetResourceLimitCurrentValue(out_cur, reslimit_hnd, resource));
|
|
R_TRY(svc::GetResourceLimitLimitValue(out_lim, reslimit_hnd, resource));
|
|
|
|
R_SUCCEED();
|
|
}
|
|
|
|
}
|