mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-16 08:56:40 +00:00
265 lines
13 KiB
C++
265 lines
13 KiB
C++
/*
|
|
* Copyright (c) Atmosphère-NX
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <mesosphere.hpp>
|
|
|
|
namespace ams::kern::init {
|
|
|
|
/* For macro convenience. */
|
|
using KSessionRequestMappings = KSessionRequest::SessionMappings::DynamicMappings;
|
|
|
|
#define SLAB_COUNT(CLASS) g_slab_resource_counts.num_##CLASS
|
|
|
|
#define FOREACH_SLAB_TYPE(HANDLER, ...) \
|
|
HANDLER(KProcess, (SLAB_COUNT(KProcess)), ## __VA_ARGS__) \
|
|
HANDLER(KThread, (SLAB_COUNT(KThread)), ## __VA_ARGS__) \
|
|
HANDLER(KEvent, (SLAB_COUNT(KEvent)), ## __VA_ARGS__) \
|
|
HANDLER(KInterruptEvent, (SLAB_COUNT(KInterruptEvent)), ## __VA_ARGS__) \
|
|
HANDLER(KPort, (SLAB_COUNT(KPort)), ## __VA_ARGS__) \
|
|
HANDLER(KSharedMemory, (SLAB_COUNT(KSharedMemory)), ## __VA_ARGS__) \
|
|
HANDLER(KSharedMemoryInfo, (SLAB_COUNT(KSharedMemory) * 8), ## __VA_ARGS__) \
|
|
HANDLER(KTransferMemory, (SLAB_COUNT(KTransferMemory)), ## __VA_ARGS__) \
|
|
HANDLER(KCodeMemory, (SLAB_COUNT(KCodeMemory)), ## __VA_ARGS__) \
|
|
HANDLER(KDeviceAddressSpace, (SLAB_COUNT(KDeviceAddressSpace)), ## __VA_ARGS__) \
|
|
HANDLER(KSession, (SLAB_COUNT(KSession)), ## __VA_ARGS__) \
|
|
HANDLER(KSessionRequest, (SLAB_COUNT(KSession) * 2), ## __VA_ARGS__) \
|
|
HANDLER(KLightSession, (SLAB_COUNT(KLightSession)), ## __VA_ARGS__) \
|
|
HANDLER(KThreadLocalPage, (SLAB_COUNT(KProcess) + (SLAB_COUNT(KProcess) + SLAB_COUNT(KThread)) / 8), ## __VA_ARGS__) \
|
|
HANDLER(KObjectName, (SLAB_COUNT(KObjectName)), ## __VA_ARGS__) \
|
|
HANDLER(KResourceLimit, (SLAB_COUNT(KResourceLimit)), ## __VA_ARGS__) \
|
|
HANDLER(KEventInfo, (SLAB_COUNT(KThread) + SLAB_COUNT(KDebug)), ## __VA_ARGS__) \
|
|
HANDLER(KDebug, (SLAB_COUNT(KDebug)), ## __VA_ARGS__) \
|
|
HANDLER(KIoPool, (SLAB_COUNT(KIoPool)), ## __VA_ARGS__) \
|
|
HANDLER(KIoRegion, (SLAB_COUNT(KIoRegion)), ## __VA_ARGS__) \
|
|
HANDLER(KSecureSystemResource, (SLAB_COUNT(KProcess)), ## __VA_ARGS__) \
|
|
HANDLER(KSessionRequestMappings, (SLAB_COUNT(KSessionRequestMappings)), ## __VA_ARGS__)
|
|
|
|
namespace {
|
|
|
|
|
|
#define DEFINE_SLAB_TYPE_ENUM_MEMBER(NAME, COUNT, ...) KSlabType_##NAME,
|
|
|
|
enum KSlabType : u32 {
|
|
FOREACH_SLAB_TYPE(DEFINE_SLAB_TYPE_ENUM_MEMBER)
|
|
KSlabType_Count,
|
|
};
|
|
|
|
#undef DEFINE_SLAB_TYPE_ENUM_MEMBER
|
|
|
|
/* Constexpr counts. */
|
|
constexpr size_t SlabCountKProcess = 80;
|
|
constexpr size_t SlabCountKThread = 800;
|
|
constexpr size_t SlabCountKEvent = 900;
|
|
constexpr size_t SlabCountKInterruptEvent = 100;
|
|
constexpr size_t SlabCountKPort = 384;
|
|
constexpr size_t SlabCountKSharedMemory = 80;
|
|
constexpr size_t SlabCountKTransferMemory = 200;
|
|
constexpr size_t SlabCountKCodeMemory = 10;
|
|
constexpr size_t SlabCountKDeviceAddressSpace = 300;
|
|
constexpr size_t SlabCountKSession = 1133;
|
|
constexpr size_t SlabCountKLightSession = 100;
|
|
constexpr size_t SlabCountKObjectName = 7;
|
|
constexpr size_t SlabCountKResourceLimit = 5;
|
|
constexpr size_t SlabCountKDebug = cpu::NumCores;
|
|
constexpr size_t SlabCountKIoPool = 1;
|
|
constexpr size_t SlabCountKIoRegion = 6;
|
|
constexpr size_t SlabcountKSessionRequestMappings = 40;
|
|
|
|
constexpr size_t SlabCountExtraKThread = (1024 + 256 + 256) - SlabCountKThread;
|
|
|
|
namespace test {
|
|
|
|
constexpr size_t RequiredSizeForExtraThreadCount = SlabCountExtraKThread * (sizeof(KThread) + (sizeof(KThreadLocalPage) / 8) + sizeof(KEventInfo));
|
|
static_assert(RequiredSizeForExtraThreadCount <= KernelSlabHeapAdditionalSize);
|
|
|
|
static_assert(KernelPageBufferHeapSize == 2 * PageSize + (SlabCountKProcess + SlabCountKThread + (SlabCountKProcess + SlabCountKThread) / 8) * PageSize);
|
|
static_assert(KernelPageBufferAdditionalSize == (SlabCountExtraKThread + (SlabCountExtraKThread / 8)) * PageSize);
|
|
|
|
}
|
|
|
|
/* Global to hold our resource counts. */
|
|
constinit KSlabResourceCounts g_slab_resource_counts = {
|
|
.num_KProcess = SlabCountKProcess,
|
|
.num_KThread = SlabCountKThread,
|
|
.num_KEvent = SlabCountKEvent,
|
|
.num_KInterruptEvent = SlabCountKInterruptEvent,
|
|
.num_KPort = SlabCountKPort,
|
|
.num_KSharedMemory = SlabCountKSharedMemory,
|
|
.num_KTransferMemory = SlabCountKTransferMemory,
|
|
.num_KCodeMemory = SlabCountKCodeMemory,
|
|
.num_KDeviceAddressSpace = SlabCountKDeviceAddressSpace,
|
|
.num_KSession = SlabCountKSession,
|
|
.num_KLightSession = SlabCountKLightSession,
|
|
.num_KObjectName = SlabCountKObjectName,
|
|
.num_KResourceLimit = SlabCountKResourceLimit,
|
|
.num_KDebug = SlabCountKDebug,
|
|
.num_KIoPool = SlabCountKIoPool,
|
|
.num_KIoRegion = SlabCountKIoRegion,
|
|
.num_KSessionRequestMappings = SlabcountKSessionRequestMappings,
|
|
};
|
|
|
|
template<typename T>
|
|
NOINLINE KVirtualAddress InitializeSlabHeap(KVirtualAddress address, size_t num_objects) {
|
|
const size_t size = util::AlignUp(sizeof(T) * num_objects, alignof(void *));
|
|
KVirtualAddress start = util::AlignUp(GetInteger(address), alignof(T));
|
|
|
|
if (size > 0) {
|
|
const KMemoryRegion *region = KMemoryLayout::Find(start + size - 1);
|
|
MESOSPHERE_ABORT_UNLESS(region != nullptr);
|
|
MESOSPHERE_ABORT_UNLESS(region->IsDerivedFrom(KMemoryRegionType_KernelSlab));
|
|
T::InitializeSlabHeap(GetVoidPointer(start), size);
|
|
}
|
|
|
|
return start + size;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
const KSlabResourceCounts &GetSlabResourceCounts() {
|
|
return g_slab_resource_counts;
|
|
}
|
|
|
|
void InitializeSlabResourceCounts() {
|
|
/* Note: Nintendo initializes all fields here, but we initialize all constants at compile-time. */
|
|
if (KSystemControl::Init::ShouldIncreaseThreadResourceLimit()) {
|
|
g_slab_resource_counts.num_KThread += SlabCountExtraKThread;
|
|
}
|
|
}
|
|
|
|
size_t CalculateSlabHeapGapSize() {
|
|
constexpr size_t KernelSlabHeapGapSize = 2_MB - 320_KB;
|
|
static_assert(KernelSlabHeapGapSize <= KernelSlabHeapGapsSizeMax);
|
|
return KernelSlabHeapGapSize;
|
|
}
|
|
|
|
size_t CalculateTotalSlabHeapSize() {
|
|
size_t size = 0;
|
|
|
|
#define ADD_SLAB_SIZE(NAME, COUNT, ...) ({ \
|
|
size += alignof(NAME); \
|
|
size += util::AlignUp(sizeof(NAME) * (COUNT), alignof(void *)); \
|
|
});
|
|
|
|
/* Add the size required for each slab. */
|
|
FOREACH_SLAB_TYPE(ADD_SLAB_SIZE)
|
|
|
|
#undef ADD_SLAB_SIZE
|
|
|
|
/* Add the reserved size. */
|
|
size += CalculateSlabHeapGapSize();
|
|
|
|
return size;
|
|
}
|
|
|
|
void InitializeSlabHeaps() {
|
|
/* Get the slab region, since that's where we'll be working. */
|
|
const KMemoryRegion &slab_region = KMemoryLayout::GetSlabRegion();
|
|
KVirtualAddress address = slab_region.GetAddress();
|
|
|
|
/* Initialize slab type array to be in sorted order. */
|
|
KSlabType slab_types[KSlabType_Count];
|
|
for (size_t i = 0; i < util::size(slab_types); i++) { slab_types[i] = static_cast<KSlabType>(i); }
|
|
|
|
/* N shuffles the slab type array with the following simple algorithm. */
|
|
for (size_t i = 0; i < util::size(slab_types); i++) {
|
|
const size_t rnd = KSystemControl::GenerateRandomRange(0, util::size(slab_types) - 1);
|
|
std::swap(slab_types[i], slab_types[rnd]);
|
|
}
|
|
|
|
/* Create an array to represent the gaps between the slabs. */
|
|
const size_t total_gap_size = CalculateSlabHeapGapSize();
|
|
size_t slab_gaps[util::size(slab_types)];
|
|
for (size_t i = 0; i < util::size(slab_gaps); i++) {
|
|
/* Note: This is an off-by-one error from Nintendo's intention, because GenerateRandomRange is inclusive. */
|
|
/* However, Nintendo also has the off-by-one error, and it's "harmless", so we will include it ourselves. */
|
|
slab_gaps[i] = KSystemControl::GenerateRandomRange(0, total_gap_size);
|
|
}
|
|
|
|
/* Sort the array, so that we can treat differences between values as offsets to the starts of slabs. */
|
|
for (size_t i = 1; i < util::size(slab_gaps); i++) {
|
|
for (size_t j = i; j > 0 && slab_gaps[j-1] > slab_gaps[j]; j--) {
|
|
std::swap(slab_gaps[j], slab_gaps[j-1]);
|
|
}
|
|
}
|
|
|
|
/* Track the gaps, so that we can free them to the unused slab tree. */
|
|
KVirtualAddress gap_start = address;
|
|
size_t gap_size = 0;
|
|
|
|
for (size_t i = 0; i < util::size(slab_types); i++) {
|
|
/* Add the random gap to the address. */
|
|
const auto cur_gap = (i == 0) ? slab_gaps[0] : slab_gaps[i] - slab_gaps[i - 1];
|
|
address += cur_gap;
|
|
gap_size += cur_gap;
|
|
|
|
#define INITIALIZE_SLAB_HEAP(NAME, COUNT, ...) \
|
|
case KSlabType_##NAME: \
|
|
if (COUNT > 0) { \
|
|
address = InitializeSlabHeap<NAME>(address, COUNT); \
|
|
} \
|
|
break;
|
|
|
|
/* Initialize the slabheap. */
|
|
switch (slab_types[i]) {
|
|
/* For each of the slab types, we want to initialize that heap. */
|
|
FOREACH_SLAB_TYPE(INITIALIZE_SLAB_HEAP)
|
|
/* If we somehow get an invalid type, abort. */
|
|
MESOSPHERE_UNREACHABLE_DEFAULT_CASE();
|
|
}
|
|
|
|
/* If we've hit the end of a gap, free it. */
|
|
if (gap_start + gap_size != address) {
|
|
FreeUnusedSlabMemory(gap_start, gap_size);
|
|
gap_start = address;
|
|
gap_size = 0;
|
|
}
|
|
}
|
|
|
|
/* Free the end of the slab region. */
|
|
FreeUnusedSlabMemory(gap_start, gap_size + (slab_region.GetEndAddress() - GetInteger(address)));
|
|
}
|
|
|
|
}
|
|
|
|
namespace ams::kern {
|
|
|
|
void KPageBufferSlabHeap::Initialize(KDynamicPageManager &allocator) {
|
|
/* Get slab resource counts. */
|
|
const auto &counts = init::GetSlabResourceCounts();
|
|
|
|
/* If size is correct, account for thread local pages. */
|
|
if (BufferSize == PageSize) {
|
|
s_buffer_count += counts.num_KProcess + counts.num_KThread + (counts.num_KProcess + counts.num_KThread) / 8;
|
|
}
|
|
|
|
/* Set our object size. */
|
|
m_obj_size = BufferSize;
|
|
|
|
/* Initialize the base allocator. */
|
|
KSlabHeapImpl::Initialize();
|
|
|
|
/* Allocate the desired page count. */
|
|
for (size_t i = 0; i < s_buffer_count; ++i) {
|
|
/* Allocate an appropriate buffer. */
|
|
auto * const pb = (BufferSize <= PageSize) ? allocator.Allocate() : allocator.Allocate(BufferSize / PageSize);
|
|
MESOSPHERE_ABORT_UNLESS(pb != nullptr);
|
|
|
|
/* Free to our slab. */
|
|
KSlabHeapImpl::Free(pb);
|
|
}
|
|
}
|
|
|
|
}
|