Merge pull request #2687 from yuriks/address-mappings
Kernel: Map special regions according to ExHeader
This commit is contained in:
commit
180587bb8b
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@ -2,6 +2,7 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <array>
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#include <memory>
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#include <string>
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#include "audio_core/audio_core.h"
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@ -10,8 +11,8 @@
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#include "audio_core/null_sink.h"
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#include "audio_core/sink.h"
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#include "audio_core/sink_details.h"
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#include "common/common_types.h"
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#include "core/core_timing.h"
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#include "core/hle/kernel/vm_manager.h"
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#include "core/hle/service/dsp_dsp.h"
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namespace AudioCore {
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@ -39,20 +40,8 @@ void Init() {
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CoreTiming::ScheduleEvent(audio_frame_ticks, tick_event);
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}
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void AddAddressSpace(Kernel::VMManager& address_space) {
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auto r0_vma = address_space
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.MapBackingMemory(DSP::HLE::region0_base,
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reinterpret_cast<u8*>(&DSP::HLE::g_regions[0]),
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sizeof(DSP::HLE::SharedMemory), Kernel::MemoryState::IO)
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.MoveFrom();
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address_space.Reprotect(r0_vma, Kernel::VMAPermission::ReadWrite);
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auto r1_vma = address_space
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.MapBackingMemory(DSP::HLE::region1_base,
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reinterpret_cast<u8*>(&DSP::HLE::g_regions[1]),
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sizeof(DSP::HLE::SharedMemory), Kernel::MemoryState::IO)
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.MoveFrom();
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address_space.Reprotect(r1_vma, Kernel::VMAPermission::ReadWrite);
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std::array<u8, Memory::DSP_RAM_SIZE>& GetDspMemory() {
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return DSP::HLE::g_dsp_memory.raw_memory;
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}
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void SelectSink(std::string sink_id) {
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@ -4,11 +4,10 @@
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#pragma once
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#include <array>
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#include <string>
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namespace Kernel {
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class VMManager;
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}
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#include "common/common_types.h"
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#include "core/memory.h"
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namespace AudioCore {
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@ -17,8 +16,8 @@ constexpr int native_sample_rate = 32728; ///< 32kHz
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/// Initialise Audio Core
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void Init();
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/// Add DSP address spaces to a Process.
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void AddAddressSpace(Kernel::VMManager& vm_manager);
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/// Returns a reference to the array backing DSP memory
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std::array<u8, Memory::DSP_RAM_SIZE>& GetDspMemory();
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/// Select the sink to use based on sink id.
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void SelectSink(std::string sink_id);
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@ -29,4 +28,4 @@ void EnableStretching(bool enable);
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/// Shutdown Audio Core
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void Shutdown();
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} // namespace
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} // namespace AudioCore
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@ -16,31 +16,33 @@ namespace HLE {
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// Region management
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std::array<SharedMemory, 2> g_regions;
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DspMemory g_dsp_memory;
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static size_t CurrentRegionIndex() {
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// The region with the higher frame counter is chosen unless there is wraparound.
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// This function only returns a 0 or 1.
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u16 frame_counter_0 = g_dsp_memory.region_0.frame_counter;
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u16 frame_counter_1 = g_dsp_memory.region_1.frame_counter;
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if (g_regions[0].frame_counter == 0xFFFFu && g_regions[1].frame_counter != 0xFFFEu) {
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if (frame_counter_0 == 0xFFFFu && frame_counter_1 != 0xFFFEu) {
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// Wraparound has occurred.
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return 1;
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}
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if (g_regions[1].frame_counter == 0xFFFFu && g_regions[0].frame_counter != 0xFFFEu) {
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if (frame_counter_1 == 0xFFFFu && frame_counter_0 != 0xFFFEu) {
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// Wraparound has occurred.
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return 0;
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}
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return (g_regions[0].frame_counter > g_regions[1].frame_counter) ? 0 : 1;
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return (frame_counter_0 > frame_counter_1) ? 0 : 1;
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}
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static SharedMemory& ReadRegion() {
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return g_regions[CurrentRegionIndex()];
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return CurrentRegionIndex() == 0 ? g_dsp_memory.region_0 : g_dsp_memory.region_1;
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}
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static SharedMemory& WriteRegion() {
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return g_regions[1 - CurrentRegionIndex()];
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return CurrentRegionIndex() != 0 ? g_dsp_memory.region_0 : g_dsp_memory.region_1;
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}
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// Audio processing and mixing
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@ -31,8 +31,8 @@ namespace HLE {
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// double-buffer. The frame counter is located as the very last u16 of each region and is
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// incremented each audio tick.
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constexpr VAddr region0_base = 0x1FF50000;
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constexpr VAddr region1_base = 0x1FF70000;
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constexpr u32 region0_offset = 0x50000;
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constexpr u32 region1_offset = 0x70000;
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/**
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* The DSP is native 16-bit. The DSP also appears to be big-endian. When reading 32-bit numbers from
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@ -512,7 +512,22 @@ struct SharedMemory {
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};
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ASSERT_DSP_STRUCT(SharedMemory, 0x8000);
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extern std::array<SharedMemory, 2> g_regions;
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union DspMemory {
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std::array<u8, 0x80000> raw_memory;
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struct {
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u8 unused_0[0x50000];
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SharedMemory region_0;
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u8 unused_1[0x18000];
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SharedMemory region_1;
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u8 unused_2[0x8000];
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};
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};
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static_assert(offsetof(DspMemory, region_0) == region0_offset,
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"DSP region 0 is at the wrong offset");
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static_assert(offsetof(DspMemory, region_1) == region1_offset,
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"DSP region 1 is at the wrong offset");
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extern DspMemory g_dsp_memory;
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// Structures must have an offset that is a multiple of two.
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static_assert(offsetof(SharedMemory, frame_counter) % 2 == 0,
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@ -13,11 +13,11 @@
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#include "core/core_timing.h"
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#include "core/gdbstub/gdbstub.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/memory.h"
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#include "core/hle/kernel/thread.h"
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#include "core/hle/service/service.h"
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#include "core/hw/hw.h"
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#include "core/loader/loader.h"
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#include "core/memory_setup.h"
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#include "core/settings.h"
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#include "video_core/video_core.h"
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@ -123,7 +123,8 @@ void System::Reschedule() {
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}
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System::ResultStatus System::Init(EmuWindow* emu_window, u32 system_mode) {
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Memory::Init();
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Memory::InitMemoryMap();
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LOG_DEBUG(HW_Memory, "initialized OK");
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if (Settings::values.use_cpu_jit) {
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cpu_core = std::make_unique<ARM_Dynarmic>(USER32MODE);
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@ -2,11 +2,13 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <cinttypes>
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#include <map>
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#include <memory>
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#include <utility>
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#include <vector>
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#include "audio_core/audio_core.h"
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#include "common/assert.h"
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#include "common/common_types.h"
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#include "common/logging/log.h"
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#include "core/hle/config_mem.h"
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@ -92,52 +94,96 @@ MemoryRegionInfo* GetMemoryRegion(MemoryRegion region) {
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UNREACHABLE();
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}
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}
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}
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namespace Memory {
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std::array<u8, Memory::VRAM_SIZE> vram;
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std::array<u8, Memory::N3DS_EXTRA_RAM_SIZE> n3ds_extra_ram;
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namespace {
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void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mapping) {
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using namespace Memory;
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struct MemoryArea {
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u32 base;
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u32 size;
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const char* name;
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};
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struct MemoryArea {
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VAddr vaddr_base;
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PAddr paddr_base;
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u32 size;
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};
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// We don't declare the IO regions in here since its handled by other means.
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static MemoryArea memory_areas[] = {
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{VRAM_VADDR, VRAM_SIZE, "VRAM"}, // Video memory (VRAM)
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};
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}
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// The order of entries in this array is important. The VRAM and IO VAddr ranges overlap, and
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// VRAM must be tried first.
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static constexpr MemoryArea memory_areas[] = {
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{VRAM_VADDR, VRAM_PADDR, VRAM_SIZE},
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{IO_AREA_VADDR, IO_AREA_PADDR, IO_AREA_SIZE},
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{DSP_RAM_VADDR, DSP_RAM_PADDR, DSP_RAM_SIZE},
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{N3DS_EXTRA_RAM_VADDR, N3DS_EXTRA_RAM_PADDR, N3DS_EXTRA_RAM_SIZE - 0x20000},
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};
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void Init() {
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InitMemoryMap();
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LOG_DEBUG(HW_Memory, "initialized OK");
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}
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void InitLegacyAddressSpace(Kernel::VMManager& address_space) {
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using namespace Kernel;
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for (MemoryArea& area : memory_areas) {
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auto block = std::make_shared<std::vector<u8>>(area.size);
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address_space
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.MapMemoryBlock(area.base, std::move(block), 0, area.size, MemoryState::Private)
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.Unwrap();
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VAddr mapping_limit = mapping.address + mapping.size;
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if (mapping_limit < mapping.address) {
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LOG_CRITICAL(Loader, "Mapping size overflowed: address=0x%08" PRIX32 " size=0x%" PRIX32,
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mapping.address, mapping.size);
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return;
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}
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auto area =
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std::find_if(std::begin(memory_areas), std::end(memory_areas), [&](const auto& area) {
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return mapping.address >= area.vaddr_base &&
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mapping_limit <= area.vaddr_base + area.size;
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});
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if (area == std::end(memory_areas)) {
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LOG_ERROR(Loader, "Unhandled special mapping: address=0x%08" PRIX32 " size=0x%" PRIX32
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" read_only=%d unk_flag=%d",
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mapping.address, mapping.size, mapping.read_only, mapping.unk_flag);
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return;
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}
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u32 offset_into_region = mapping.address - area->vaddr_base;
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if (area->paddr_base == IO_AREA_PADDR) {
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LOG_ERROR(Loader, "MMIO mappings are not supported yet. phys_addr=0x%08" PRIX32,
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area->paddr_base + offset_into_region);
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return;
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}
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// TODO(yuriks): Use GetPhysicalPointer when that becomes independent of the virtual
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// mappings.
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u8* target_pointer = nullptr;
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switch (area->paddr_base) {
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case VRAM_PADDR:
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target_pointer = vram.data();
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break;
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case DSP_RAM_PADDR:
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target_pointer = AudioCore::GetDspMemory().data();
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break;
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case N3DS_EXTRA_RAM_PADDR:
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target_pointer = n3ds_extra_ram.data();
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break;
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default:
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UNREACHABLE();
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}
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// TODO(yuriks): This flag seems to have some other effect, but it's unknown what
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MemoryState memory_state = mapping.unk_flag ? MemoryState::Static : MemoryState::IO;
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auto vma = address_space
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.MapBackingMemory(mapping.address, target_pointer + offset_into_region,
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mapping.size, memory_state)
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.MoveFrom();
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address_space.Reprotect(vma,
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mapping.read_only ? VMAPermission::Read : VMAPermission::ReadWrite);
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}
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void MapSharedPages(VMManager& address_space) {
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auto cfg_mem_vma = address_space
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.MapBackingMemory(CONFIG_MEMORY_VADDR, (u8*)&ConfigMem::config_mem,
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CONFIG_MEMORY_SIZE, MemoryState::Shared)
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.MapBackingMemory(Memory::CONFIG_MEMORY_VADDR,
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reinterpret_cast<u8*>(&ConfigMem::config_mem),
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Memory::CONFIG_MEMORY_SIZE, MemoryState::Shared)
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.MoveFrom();
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address_space.Reprotect(cfg_mem_vma, VMAPermission::Read);
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auto shared_page_vma = address_space
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.MapBackingMemory(SHARED_PAGE_VADDR, (u8*)&SharedPage::shared_page,
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SHARED_PAGE_SIZE, MemoryState::Shared)
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.MapBackingMemory(Memory::SHARED_PAGE_VADDR,
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reinterpret_cast<u8*>(&SharedPage::shared_page),
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Memory::SHARED_PAGE_SIZE, MemoryState::Shared)
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.MoveFrom();
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address_space.Reprotect(shared_page_vma, VMAPermission::Read);
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AudioCore::AddAddressSpace(address_space);
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}
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} // namespace
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} // namespace Kernel
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@ -23,11 +23,7 @@ struct MemoryRegionInfo {
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void MemoryInit(u32 mem_type);
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void MemoryShutdown();
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MemoryRegionInfo* GetMemoryRegion(MemoryRegion region);
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}
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namespace Memory {
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void Init();
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void InitLegacyAddressSpace(Kernel::VMManager& address_space);
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} // namespace
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void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mapping);
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void MapSharedPages(VMManager& address_space);
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} // namespace Kernel
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@ -35,7 +35,6 @@ SharedPtr<Process> Process::Create(SharedPtr<CodeSet> code_set) {
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process->codeset = std::move(code_set);
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process->flags.raw = 0;
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process->flags.memory_region.Assign(MemoryRegion::APPLICATION);
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Memory::InitLegacyAddressSpace(process->vm_manager);
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return process;
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}
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@ -78,8 +77,15 @@ void Process::ParseKernelCaps(const u32* kernel_caps, size_t len) {
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AddressMapping mapping;
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mapping.address = descriptor << 12;
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mapping.size = (end_desc << 12) - mapping.address;
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mapping.writable = (descriptor & (1 << 20)) != 0;
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VAddr end_address = end_desc << 12;
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if (mapping.address < end_address) {
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mapping.size = end_address - mapping.address;
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} else {
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mapping.size = 0;
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}
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mapping.read_only = (descriptor & (1 << 20)) != 0;
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mapping.unk_flag = (end_desc & (1 << 20)) != 0;
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address_mappings.push_back(mapping);
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@ -88,8 +94,10 @@ void Process::ParseKernelCaps(const u32* kernel_caps, size_t len) {
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AddressMapping mapping;
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mapping.address = descriptor << 12;
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mapping.size = Memory::PAGE_SIZE;
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mapping.writable = true; // TODO: Not sure if correct
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mapping.read_only = false;
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mapping.unk_flag = false;
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address_mappings.push_back(mapping);
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} else if ((type & 0xFE0) == 0xFC0) { // 0x01FF
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// Kernel version
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kernel_version = descriptor & 0xFFFF;
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@ -131,6 +139,12 @@ void Process::Run(s32 main_thread_priority, u32 stack_size) {
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misc_memory_used += stack_size;
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memory_region->used += stack_size;
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// Map special address mappings
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MapSharedPages(vm_manager);
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for (const auto& mapping : address_mappings) {
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HandleSpecialMapping(vm_manager, mapping);
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}
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vm_manager.LogLayout(Log::Level::Debug);
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Kernel::SetupMainThread(codeset->entrypoint, main_thread_priority);
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}
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@ -138,6 +152,7 @@ void Process::Run(s32 main_thread_priority, u32 stack_size) {
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VAddr Process::GetLinearHeapAreaAddress() const {
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return kernel_version < 0x22C ? Memory::LINEAR_HEAP_VADDR : Memory::NEW_LINEAR_HEAP_VADDR;
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}
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VAddr Process::GetLinearHeapBase() const {
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return GetLinearHeapAreaAddress() + memory_region->base;
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}
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@ -20,7 +20,7 @@ struct AddressMapping {
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// Address and size must be page-aligned
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VAddr address;
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u32 size;
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bool writable;
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bool read_only;
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bool unk_flag;
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};
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@ -672,12 +672,14 @@ PAddr VirtualToPhysicalAddress(const VAddr addr) {
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return addr - VRAM_VADDR + VRAM_PADDR;
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} else if (addr >= LINEAR_HEAP_VADDR && addr < LINEAR_HEAP_VADDR_END) {
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return addr - LINEAR_HEAP_VADDR + FCRAM_PADDR;
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} else if (addr >= NEW_LINEAR_HEAP_VADDR && addr < NEW_LINEAR_HEAP_VADDR_END) {
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return addr - NEW_LINEAR_HEAP_VADDR + FCRAM_PADDR;
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} else if (addr >= DSP_RAM_VADDR && addr < DSP_RAM_VADDR_END) {
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return addr - DSP_RAM_VADDR + DSP_RAM_PADDR;
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} else if (addr >= IO_AREA_VADDR && addr < IO_AREA_VADDR_END) {
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return addr - IO_AREA_VADDR + IO_AREA_PADDR;
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} else if (addr >= NEW_LINEAR_HEAP_VADDR && addr < NEW_LINEAR_HEAP_VADDR_END) {
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return addr - NEW_LINEAR_HEAP_VADDR + FCRAM_PADDR;
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} else if (addr >= N3DS_EXTRA_RAM_VADDR && addr < N3DS_EXTRA_RAM_VADDR_END) {
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return addr - N3DS_EXTRA_RAM_VADDR + N3DS_EXTRA_RAM_PADDR;
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}
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LOG_ERROR(HW_Memory, "Unknown virtual address @ 0x%08X", addr);
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@ -696,6 +698,8 @@ VAddr PhysicalToVirtualAddress(const PAddr addr) {
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return addr - DSP_RAM_PADDR + DSP_RAM_VADDR;
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} else if (addr >= IO_AREA_PADDR && addr < IO_AREA_PADDR_END) {
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return addr - IO_AREA_PADDR + IO_AREA_VADDR;
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} else if (addr >= N3DS_EXTRA_RAM_PADDR && addr < N3DS_EXTRA_RAM_PADDR_END) {
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return addr - N3DS_EXTRA_RAM_PADDR + N3DS_EXTRA_RAM_VADDR;
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}
|
||||
|
||||
LOG_ERROR(HW_Memory, "Unknown physical address @ 0x%08X", addr);
|
||||
|
|
|
@ -37,6 +37,12 @@ enum : PAddr {
|
|||
VRAM_SIZE = 0x00600000, ///< VRAM size (6MB)
|
||||
VRAM_PADDR_END = VRAM_PADDR + VRAM_SIZE,
|
||||
|
||||
/// New 3DS additional memory. Supposedly faster than regular FCRAM. Part of it can be used by
|
||||
/// applications and system modules if mapped via the ExHeader.
|
||||
N3DS_EXTRA_RAM_PADDR = 0x1F000000,
|
||||
N3DS_EXTRA_RAM_SIZE = 0x00400000, ///< New 3DS additional memory size (4MB)
|
||||
N3DS_EXTRA_RAM_PADDR_END = N3DS_EXTRA_RAM_PADDR + N3DS_EXTRA_RAM_SIZE,
|
||||
|
||||
/// DSP memory
|
||||
DSP_RAM_PADDR = 0x1FF00000,
|
||||
DSP_RAM_SIZE = 0x00080000, ///< DSP memory size (512KB)
|
||||
|
@ -81,6 +87,10 @@ enum : VAddr {
|
|||
LINEAR_HEAP_SIZE = 0x08000000,
|
||||
LINEAR_HEAP_VADDR_END = LINEAR_HEAP_VADDR + LINEAR_HEAP_SIZE,
|
||||
|
||||
/// Maps 1:1 to New 3DS additional memory
|
||||
N3DS_EXTRA_RAM_VADDR = 0x1E800000,
|
||||
N3DS_EXTRA_RAM_VADDR_END = N3DS_EXTRA_RAM_VADDR + N3DS_EXTRA_RAM_SIZE,
|
||||
|
||||
/// Maps 1:1 to the IO register area.
|
||||
IO_AREA_VADDR = 0x1EC00000,
|
||||
IO_AREA_VADDR_END = IO_AREA_VADDR + IO_AREA_SIZE,
|
||||
|
|
Reference in New Issue