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author | Liam <byteslice@airmail.cc> | 2023-03-07 03:04:12 +0100 |
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committer | Liam <byteslice@airmail.cc> | 2023-03-13 03:06:53 +0100 |
commit | 0483dfae1a7db26dfe310b4119120a9b411d2244 (patch) | |
tree | bff15f2a7deff5bde641c8ce197473dd2d2917ed /src/core/hle/kernel/board | |
parent | kernel: remove KLinkedList (diff) | |
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Diffstat (limited to 'src/core/hle/kernel/board')
-rw-r--r-- | src/core/hle/kernel/board/nintendo/nx/k_memory_layout.cpp | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/src/core/hle/kernel/board/nintendo/nx/k_memory_layout.cpp b/src/core/hle/kernel/board/nintendo/nx/k_memory_layout.cpp new file mode 100644 index 000000000..098ba6eac --- /dev/null +++ b/src/core/hle/kernel/board/nintendo/nx/k_memory_layout.cpp @@ -0,0 +1,201 @@ +// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +#include "common/alignment.h" +#include "common/literals.h" +#include "core/hle/kernel/k_memory_layout.h" +#include "core/hle/kernel/k_memory_manager.h" +#include "core/hle/kernel/k_system_control.h" +#include "core/hle/kernel/k_trace.h" + +namespace Kernel { + +namespace { + +using namespace Common::Literals; + +constexpr size_t CarveoutAlignment = 0x20000; +constexpr size_t CarveoutSizeMax = (512_MiB) - CarveoutAlignment; + +bool SetupPowerManagementControllerMemoryRegion(KMemoryLayout& memory_layout) { + // Above firmware 2.0.0, the PMC is not mappable. + return memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x7000E000, 0x400, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap) && + memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x7000E400, 0xC00, + KMemoryRegionType_PowerManagementController | KMemoryRegionAttr_NoUserMap); +} + +void InsertPoolPartitionRegionIntoBothTrees(KMemoryLayout& memory_layout, size_t start, size_t size, + KMemoryRegionType phys_type, + KMemoryRegionType virt_type, u32& cur_attr) { + const u32 attr = cur_attr++; + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert(start, size, + static_cast<u32>(phys_type), attr)); + const KMemoryRegion* phys = memory_layout.GetPhysicalMemoryRegionTree().FindByTypeAndAttribute( + static_cast<u32>(phys_type), attr); + ASSERT(phys != nullptr); + ASSERT(phys->GetEndAddress() != 0); + ASSERT(memory_layout.GetVirtualMemoryRegionTree().Insert(phys->GetPairAddress(), size, + static_cast<u32>(virt_type), attr)); +} + +} // namespace + +namespace Init { + +void SetupDevicePhysicalMemoryRegions(KMemoryLayout& memory_layout) { + ASSERT(SetupPowerManagementControllerMemoryRegion(memory_layout)); + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x70019000, 0x1000, KMemoryRegionType_MemoryController | KMemoryRegionAttr_NoUserMap)); + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x7001C000, 0x1000, KMemoryRegionType_MemoryController0 | KMemoryRegionAttr_NoUserMap)); + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x7001D000, 0x1000, KMemoryRegionType_MemoryController1 | KMemoryRegionAttr_NoUserMap)); + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x50040000, 0x1000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap)); + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x50041000, 0x1000, + KMemoryRegionType_InterruptDistributor | KMemoryRegionAttr_ShouldKernelMap)); + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x50042000, 0x1000, + KMemoryRegionType_InterruptCpuInterface | KMemoryRegionAttr_ShouldKernelMap)); + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x50043000, 0x1D000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap)); + + // Map IRAM unconditionally, to support debug-logging-to-iram build config. + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x40000000, 0x40000, KMemoryRegionType_LegacyLpsIram | KMemoryRegionAttr_ShouldKernelMap)); + + // Above firmware 2.0.0, prevent mapping the bpmp exception vectors or the ipatch region. + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x6000F000, 0x1000, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap)); + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + 0x6001DC00, 0x400, KMemoryRegionType_None | KMemoryRegionAttr_NoUserMap)); +} + +void SetupDramPhysicalMemoryRegions(KMemoryLayout& memory_layout) { + const size_t intended_memory_size = KSystemControl::Init::GetIntendedMemorySize(); + const PAddr physical_memory_base_address = + KSystemControl::Init::GetKernelPhysicalBaseAddress(DramPhysicalAddress); + + // Insert blocks into the tree. + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + physical_memory_base_address, intended_memory_size, KMemoryRegionType_Dram)); + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + physical_memory_base_address, ReservedEarlyDramSize, KMemoryRegionType_DramReservedEarly)); + + // Insert the KTrace block at the end of Dram, if KTrace is enabled. + static_assert(!IsKTraceEnabled || KTraceBufferSize > 0); + if constexpr (IsKTraceEnabled) { + const PAddr ktrace_buffer_phys_addr = + physical_memory_base_address + intended_memory_size - KTraceBufferSize; + ASSERT(memory_layout.GetPhysicalMemoryRegionTree().Insert( + ktrace_buffer_phys_addr, KTraceBufferSize, KMemoryRegionType_KernelTraceBuffer)); + } +} + +void SetupPoolPartitionMemoryRegions(KMemoryLayout& memory_layout) { + // Start by identifying the extents of the DRAM memory region. + const auto dram_extents = memory_layout.GetMainMemoryPhysicalExtents(); + ASSERT(dram_extents.GetEndAddress() != 0); + + // Determine the end of the pool region. + const u64 pool_end = dram_extents.GetEndAddress() - KTraceBufferSize; + + // Find the start of the kernel DRAM region. + const KMemoryRegion* kernel_dram_region = + memory_layout.GetPhysicalMemoryRegionTree().FindFirstDerived( + KMemoryRegionType_DramKernelBase); + ASSERT(kernel_dram_region != nullptr); + + const u64 kernel_dram_start = kernel_dram_region->GetAddress(); + ASSERT(Common::IsAligned(kernel_dram_start, CarveoutAlignment)); + + // Find the start of the pool partitions region. + const KMemoryRegion* pool_partitions_region = + memory_layout.GetPhysicalMemoryRegionTree().FindByTypeAndAttribute( + KMemoryRegionType_DramPoolPartition, 0); + ASSERT(pool_partitions_region != nullptr); + const u64 pool_partitions_start = pool_partitions_region->GetAddress(); + + // Setup the pool partition layouts. + // On 5.0.0+, setup modern 4-pool-partition layout. + + // Get Application and Applet pool sizes. + const size_t application_pool_size = KSystemControl::Init::GetApplicationPoolSize(); + const size_t applet_pool_size = KSystemControl::Init::GetAppletPoolSize(); + const size_t unsafe_system_pool_min_size = + KSystemControl::Init::GetMinimumNonSecureSystemPoolSize(); + + // Decide on starting addresses for our pools. + const u64 application_pool_start = pool_end - application_pool_size; + const u64 applet_pool_start = application_pool_start - applet_pool_size; + const u64 unsafe_system_pool_start = std::min( + kernel_dram_start + CarveoutSizeMax, + Common::AlignDown(applet_pool_start - unsafe_system_pool_min_size, CarveoutAlignment)); + const size_t unsafe_system_pool_size = applet_pool_start - unsafe_system_pool_start; + + // We want to arrange application pool depending on where the middle of dram is. + const u64 dram_midpoint = (dram_extents.GetAddress() + dram_extents.GetEndAddress()) / 2; + u32 cur_pool_attr = 0; + size_t total_overhead_size = 0; + if (dram_extents.GetEndAddress() <= dram_midpoint || dram_midpoint <= application_pool_start) { + InsertPoolPartitionRegionIntoBothTrees( + memory_layout, application_pool_start, application_pool_size, + KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool, + cur_pool_attr); + total_overhead_size += + KMemoryManager::CalculateManagementOverheadSize(application_pool_size); + } else { + const size_t first_application_pool_size = dram_midpoint - application_pool_start; + const size_t second_application_pool_size = + application_pool_start + application_pool_size - dram_midpoint; + InsertPoolPartitionRegionIntoBothTrees( + memory_layout, application_pool_start, first_application_pool_size, + KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool, + cur_pool_attr); + InsertPoolPartitionRegionIntoBothTrees( + memory_layout, dram_midpoint, second_application_pool_size, + KMemoryRegionType_DramApplicationPool, KMemoryRegionType_VirtualDramApplicationPool, + cur_pool_attr); + total_overhead_size += + KMemoryManager::CalculateManagementOverheadSize(first_application_pool_size); + total_overhead_size += + KMemoryManager::CalculateManagementOverheadSize(second_application_pool_size); + } + + // Insert the applet pool. + InsertPoolPartitionRegionIntoBothTrees(memory_layout, applet_pool_start, applet_pool_size, + KMemoryRegionType_DramAppletPool, + KMemoryRegionType_VirtualDramAppletPool, cur_pool_attr); + total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(applet_pool_size); + + // Insert the nonsecure system pool. + InsertPoolPartitionRegionIntoBothTrees( + memory_layout, unsafe_system_pool_start, unsafe_system_pool_size, + KMemoryRegionType_DramSystemNonSecurePool, KMemoryRegionType_VirtualDramSystemNonSecurePool, + cur_pool_attr); + total_overhead_size += KMemoryManager::CalculateManagementOverheadSize(unsafe_system_pool_size); + + // Insert the pool management region. + total_overhead_size += KMemoryManager::CalculateManagementOverheadSize( + (unsafe_system_pool_start - pool_partitions_start) - total_overhead_size); + const u64 pool_management_start = unsafe_system_pool_start - total_overhead_size; + const size_t pool_management_size = total_overhead_size; + u32 pool_management_attr = 0; + InsertPoolPartitionRegionIntoBothTrees( + memory_layout, pool_management_start, pool_management_size, + KMemoryRegionType_DramPoolManagement, KMemoryRegionType_VirtualDramPoolManagement, + pool_management_attr); + + // Insert the system pool. + const u64 system_pool_size = pool_management_start - pool_partitions_start; + InsertPoolPartitionRegionIntoBothTrees(memory_layout, pool_partitions_start, system_pool_size, + KMemoryRegionType_DramSystemPool, + KMemoryRegionType_VirtualDramSystemPool, cur_pool_attr); +} + +} // namespace Init + +} // namespace Kernel |