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mikage-dev/source/memory.cpp
Tony Wasserka c7a6ea0846 Hello Mikage
2024-03-08 10:54:13 +01:00

1587 lines
61 KiB
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#ifndef __ANDROID__
#include <cryptopp/sha.h>
#endif
#include "display.hpp"
#include "input.hpp"
#include "memory.h"
#include "hardware/dsp.hpp"
#include "framework/bit_field_new.hpp"
#include "framework/exceptions.hpp"
#include "framework/logging.hpp"
#include "framework/meta_tools.hpp"
#include <spdlog/spdlog.h>
#include <boost/endian/arithmetic.hpp>
#include "pica.hpp"
#include "video_core/src/video_core/renderer.hpp"
#include "video_core/src/video_core/debug_utils/debug_utils.h"
#include <teakra/teakra.h>
#include <fstream>
#include <optional>
void TeakraAudioCallback(std::array<int16_t, 2> samples);
Teakra::Teakra* g_teakra = nullptr; // TODO: Remove
Memory::PhysicalMemory* g_mem = nullptr; // TODO: Remove
bool g_dsp_running = false; // TODO: Remove
bool g_dsp_just_reset = false; // TODO: Remove
namespace Pica {
struct Context;
}
namespace GPU {
template<typename T>
void Read(Pica::Context&, T&, uint32_t);
template<typename T>
void Write(Pica::Context&, uint32_t, T);
}
namespace HLE::OS {
class OS;
void SetupOSDSPCallbacks(OS&);
extern OS* g_os;
}
namespace Memory {
struct MPCorePrivate : MemoryAccessHandler {
uint32_t Read32(uint32_t offset) {
switch (offset) {
case 0x4: // Configuration Register
// Only return the (hardcoded) number of available CPUs (minus 1) for now
return 0;
default:
return MemoryAccessHandler::Read32(offset);
}
}
};
/// Stubbed HID MMIO handler
struct HID : MemoryAccessHandler {
InputSource* input = nullptr;
int read = 0;
std::shared_ptr<spdlog::logger> logger;
HID(LogManager& log_manager) : logger(log_manager.RegisterLogger("IO_HID")) {
}
uint16_t Read16(uint32_t offset) {
logger->info("Read from HID register {:#010x}", offset);
if (offset == 0) {
// This is a negative mask of button presses: 0xFFFF means that no buttons are pressed.
logger->error("Got key HID: {:#x}", input->GetButtonState());
return ~input->GetButtonState();
} else if (offset == 0x100 || offset == 0x102) {
// HACK: This register does not actually exist on 3DS. It's an internal extension to ease reading touch data for FakeHID
// TODO: Move this to SPI instead. Also return raw data (before factoring in calibration parameters!) instead
// TODO: We query the x and y components in separate GetTouchState calls, which will cause inconsistent results to be returned!
auto state = input->GetTouchState();
if (state.pressed) {
if (offset == 0x100) {
return static_cast<uint16_t>(0.5f + state.x * 320.f);
} else {
return static_cast<uint16_t>(0.5f + state.y * 240.f);
}
} else {
// magic value used to indicate non-touches
return 0xffff;
}
} else if (offset == 0x104 || offset == 0x106) {
// HACK: This register does not actually exist on 3DS. It's an internal extension to ease reading touch data for FakeHID
// TODO: Move this to SPI instead. Also return raw data (before factoring in calibration parameters!) instead
// TODO: We query the x and y components in separate GetTouchState calls, which will cause inconsistent results to be returned!
auto state = input->GetCirclePadState();
// Rescale to positive integers: [0; 312]
if (offset == 0x104) {
return static_cast<uint16_t>(0.5f + (1.0f + state.x) * 0x9c);
} else {
return static_cast<uint16_t>(0.5f + (1.0f + state.y) * 0x9c);
}
} else if (offset == 0x108) {
static bool latch = false;
// Latch to ensure we don't send out multiple notifications... TODO: Should be moved to notifier!
auto pressed = input->IsHomeButtonPressed();
if (latch && !pressed) {
latch = false;
} else if (!latch && pressed) {
latch = true;
}
// HACK: This register does not actually exist on 3DS. It's an internal extension to ease reading Home button state
// TODO: Move this to I2C device 3 instead
return /*input->IsHomeButtonPressed()*/ latch;
}
return MemoryAccessHandler::Read16(offset);
}
};
/// Stubbed LCD MMIO handler
struct LCD : MemoryAccessHandler {
std::shared_ptr<spdlog::logger> logger;
LCD(LogManager& log_manager) : logger(log_manager.RegisterLogger("IO_LCD")) {
}
uint32_t Read32(uint32_t offset) {
logger->info("Read from LCD register {:#010x}", offset);
return 0;
}
void Write32(uint32_t offset, uint32_t value) {
logger->info("Write to LCD register {:#010x} <- {:#010x}", offset, value);
}
};
/// Stubbed AXI MMIO handler
struct AXIHandler : MemoryAccessHandler {
std::shared_ptr<spdlog::logger> logger;
AXIHandler(LogManager& log_manager) : logger(log_manager.RegisterLogger("IO_AXI")) {
}
uint32_t Read32(uint32_t offset) {
logger->info("Read from AXI register {:#010x}", offset);
return 0;
}
void Write32(uint32_t offset, uint32_t value) {
logger->info("Write to AXI register {:#010x} <- {:#010x}", offset, value);
}
};
/// GPU MMIO handler
struct GPU : MemoryAccessHandler {
Pica::Context* context;
std::shared_ptr<spdlog::logger> logger;
GPU(LogManager& log_manager) : logger(log_manager.RegisterLogger("IO_GPU")) {
}
uint32_t Read32(uint32_t offset) {
logger->info("Read from GPU register {:#010x}", offset);
uint32_t ret;
::GPU::Read<uint32_t>(*context, ret, offset + 0x1EF00000);
return ret;
}
void Write32(uint32_t offset, uint32_t value) {
logger->info("Write to GPU register {:#010x} <- {:#010x}", offset, value);
// TODO: Extract docstrings and drop the rest
#if 0
if (offset == 0x4) {
// Unknown behavior. Treat as dummy sink, for now.
} else if (offset == 0x30 || offset == 0x34) {
// VTotal/VDisp. Treat as dummy sink, for now.
} else if (offset == 0x45c) {
fb_size = value;
} else if (offset == 0x55c) {
fb_bot_size = value;
} else if (offset == 0x468) {
fb_addr = value;
} else if (offset == 0x46c) {
fb_addr2 = value;
} else if (offset == 0x474) {
// Undocumented:
// IRQ flags. bit 8 = hblank IRQ enable; bit9 = vblank IRQ enable; bit 10 = error IRQ enable; bit 16 = output enable
// But actually it's a negative masks: bits that aren't set indicate enabled IRQs, while set bits disable them
// See https://github.com/profi200/open_agb_firm/blob/c3b57bda2965fb400b98cc9ae7ac536271e66b9d/source/arm11/hardware/gfx.c#L402
fb_enable_top = value & 1;
} else if (offset == 0x478) {
// NOTE: LLE GSP first writes to this register to acknowledge IRQs.
// bit 16 = hblank IRQ; bit9 = vblank IRQ; bit 10 = error IRQ
// NOTE: LLE GSP writes values like 0x00070000 to this register, so only the lowest bit should be considered
// https://github.com/profi200/open_agb_firm/blob/c3b57bda2965fb400b98cc9ae7ac536271e66b9d/source/arm11/hardware/gfx.c#L347
fb_select_top = (value & 1);
} else if (offset == 0x490) {
fb_stride[0] = value;
} else if (offset == 0x494) {
fb_addr_right = value;
} else if (offset == 0x498) {
fb_addr2_right = value;
} else if (offset == 0x578) {
// NOTE: LLE GSP writes values like 0x00070000 to this register, so only the lowest bit should be considered
fb_select_bottom = (value & 1);
} else if (offset == 0x590) {
fb_stride[1] = value;
} else if (offset == 0x568) {
fb_bot_addr = value;
} else if (offset == 0x56c) {
fb_bot_addr2 = value;
} else if (offset == 0x470) {
fb_format = value;
} else if (offset == 0x570) {
fb_bot_format = value;
} else if (offset == 0x574) {
fb_enable_bottom = (value & 1);
} else {
#endif
// Forward register write to video_core
// TODO: Catch writes to registers unknown to video_core
::GPU::Write<uint32_t>(*context, offset, value);
}
};
#ifndef __ANDROID__
// Child of CryptoPP::SHA256, the sole purpose of which is to publish some protected methods of SHA256
struct MySHA256 : CryptoPP::SHA256 {
using Parent = IteratedHashWithStaticTransform<CryptoPP::word32, CryptoPP::BigEndian, 64, 32, CryptoPP::SHA256, 32, true>;
/// Pointer to data to be hashed (only block-wise!)
CryptoPP::word32* DataBuf() { return Parent::DataBuf(); }
/// Pointer to running hash
CryptoPP::word32* StateBuf() { return Parent::StateBuf(); }
using IteratedHashBase = CryptoPP::IteratedHashBase<CryptoPP::SHA256::HashWordType, CryptoPP::HashTransformation>;
};
// TODO: Remove these globals
static uint8_t hash_data[0x40]; // data to be hashed
static uint8_t running_hash[0x20];
MySHA256 hash;
uint32_t hashed_data_size = 0; // size of data that went into running_hash so far
struct ByteCountHiMember {
typedef MySHA256::HashWordType MySHA256::IteratedHashBase::*type;
friend type get(ByteCountHiMember);
};
struct ByteCountLoMember {
typedef MySHA256::HashWordType MySHA256::IteratedHashBase::*type;
friend type get(ByteCountLoMember);
};
/**
* Helper class used to access the private m_countHi and m_countLo data
* members of CryptoPP::SHA256.
* Yes, accessing private data members is possible.
* And yes, this is indeed ridiculously ugly - but a necessary evil, unless
* we want to require people to install a custom CryptoPP version.
*/
template<typename Tag, typename Tag::type M>
struct CryptoPPPrivateDataMembersWorkaround {
friend typename Tag::type get(Tag) {
return M;
}
};
template struct CryptoPPPrivateDataMembersWorkaround<ByteCountHiMember, &MySHA256::IteratedHashBase::m_countHi>;
template struct CryptoPPPrivateDataMembersWorkaround<ByteCountLoMember, &MySHA256::IteratedHashBase::m_countLo>;
#endif
struct HASH : MemoryAccessHandler {
std::shared_ptr<spdlog::logger> logger;
uint32_t base;
uint32_t hash_cnt = 0;
HASH(LogManager& log_manager, const char* log_name, uint32_t base) : logger(log_manager.RegisterLogger(log_name)), base(base) {
}
#ifndef __ANDROID__
uint32_t Read32(uint32_t offset) {
// static int iter = 0;
uint32_t ret = 0;
// if (iter >= 2 && iter < 5)
// ret = 1;
// iter++;
if (offset >= 0x40 && offset < 0x60) {
// TODO: This may actually also be used to read the running hash!
// The FS module does this while hashing the loaded application's ExeFS. While doing so, it is doing the following:
// * Copy over almost the entire ExeFS onto the HASH IO registers
// * Read the running hash and copy it to an internal buffer
// * Finalize the hash (writing 2 to 0x10101000)
// * Reset the HASH engine (writing 0 to 0x10101000)
// * Restore the copy of the *running* (non-final!) hash by writing it to the range starting at 0x10101040
// * Write the amount of bytes already hashed to 0x10101004 (not sure if this is relevant)
// * Write the remaining data to the HASH IO registers and finalize hashing as usual
boost::endian::little_uint32_t hashpart;
memcpy(&hashpart, &running_hash[offset - 0x40], sizeof(hashpart));
ret = hashpart;
// static int lol =0;
// lol++;
// ret = lol;
// TODO: Assert this is only read when there is no pending (incomplete) block
} else if (offset == 0x4) {
// if ((hashed_data_size % 0x40) != 0)
// throw std::runtime_error("hashed_data size somehow got unaligned!");
// NOTE: data size gets updated every 0x40 hashed bytes. It's unknown what happens if you write a non-0x40-byte-aligned value and try to read it back, though!
ret = (hashed_data_size / 0x40) * 0x40;
// ret = 0xdeadbeef;
// ret = 0x20;
// ret = hashed_data_size;
} else if (offset == 0x0) {
ret = hash_cnt;
} else {
throw std::runtime_error("Read from unknown HASH reg");
}
logger->warn("Read from HASH register {:#010x} {:#x}-> {:#010x}", base + offset, offset, ret);
return ret;
}
void Write8(uint32_t offset, uint8_t value) {
WriteImpl(offset, value);
}
void Write16(uint32_t offset, uint16_t value) {
WriteImpl(offset, value);
}
void Write32(uint32_t offset, uint32_t value) {
WriteImpl(offset, value);
}
template<typename T>
void WriteImpl(uint32_t offset, T value) {
if (base == 0x10301000) {
if (offset < 0x40) {
std::conditional_t<Meta::is_same_v<T, uint32_t>,
// boost::endian::big_uint32_t,
boost::endian::little_uint32_t,
std::conditional_t<Meta::is_same_v<T, uint16_t>,
// boost::endian::big_uint16_t,
boost::endian::little_uint16_t,
uint8_t>> be_value = value;
memcpy(&hash_data[offset], &be_value, sizeof(be_value));
// TODO: It seems that the hashed data size (as reported in MMIO reads) will only get updated in 0x40 chunks! Our current code needs the byte-precise information though, so we just keep updating this and return the cropped version when reading i back
hashed_data_size += sizeof(T);
if (offset == 0x40 - sizeof(T)) {
hash.Update(hash_data, sizeof(hash_data));
// TODOTODO: Use Transform instead!
memset(hash_data, 0, sizeof(hash_data));
// logger->warn("Written to final hash data register after {:#x} bytes, updating hash", hashed_data_size);
if (!hash.StateBuf())
throw std::runtime_error("bla2");
// TODO: Endianness? I think StateBuf is a uint32_t pointer...
memcpy(running_hash, hash.StateBuf(), sizeof(running_hash));
}
} else if (offset >= 0x40 && offset < 0x60) {
throw std::runtime_error("bla");
} else {
throw std::runtime_error("Unknown HASH register");
}
} else if (offset == 4) {
if (sizeof(T) != 4)
throw std::runtime_error("Only 32-bit writes supported in this code path");
// TODOTEST: When writing a non-0x40-byte aligned value, will the lower bits be chopped off on read back?
hashed_data_size = value;
// NOTE: This code is an ugly hack (see the definition of
// "CryptoPPPrivateDataMembersWorkaround" above) to access
// some data members of CryptoPP::SHA256 even though they
// are private. This is necessary to restore a given state
// as required to implement the HASH registers properly.
hash.*get(ByteCountHiMember()) = 0;
hash.*get(ByteCountLoMember()) = value;
logger->warn("Resetting HASH byte count to {:#x}", value);
} else {
if (offset == 0) {
// TODO: Assert that we are in big-endian hashing mode!
if (sizeof(T) != 4)
throw std::runtime_error("Only 32-bit writes supported in this code path");
if (value & 1) {
// static int lol = 0;
memset(hash_data, 0, sizeof(hash_data));
memset(running_hash, 0, sizeof(running_hash));
hash = decltype(hash){};
hashed_data_size = 0;
// TODO: Should we instead keep hash_data, running_hash, and hashed_data_size at their prior values?
logger->warn("Reset HASH engine");
}
if (value & 2) {
// Hash pending data, if any
if (hashed_data_size % 0x40) {
hash.Update(hash_data, hashed_data_size % 0x40);
}
logger->warn("Finalizing HASH engine after {:#x} bytes", hashed_data_size);
hash.Final(running_hash);
}
hash_cnt = value & 0xfffffffc;
} else if (offset >= 0x40 && offset < 0x60) {
if (sizeof(T) != 4)
throw std::runtime_error("Only 32-bit writes supported in this code path");
// boost::endian::big_uint32_t be_val = value;
boost::endian::little_uint32_t be_val = value;
memcpy(&running_hash[offset - 0x40], &be_val, sizeof(be_val));
memcpy(reinterpret_cast<char*>(hash.StateBuf()) + (offset - 0x40), &be_val, sizeof(be_val));
logger->warn("Write to HASH register {:#010x} {:#x}<- {:#010x}", base, offset, value);
}
}
logger->warn("{}-bit write to HASH register {:#010x} {:#x}<- {:#010x}", sizeof(T) * 8, base, offset, value);
}
#endif // ANDROID
};
struct GPIO : MemoryAccessHandler {
std::shared_ptr<spdlog::logger> logger;
uint32_t unknown0x20 = 0;
uint32_t unknown0x24 = 0;
GPIO(LogManager& log_manager) : logger(log_manager.RegisterLogger("IO_GPIO")) {
}
uint16_t Read16(uint32_t offset) {
switch (offset) {
// Used e.g. by HID
case 0x0:
logger->warn("16-bit read from stubbed GPIO register 0x0");
return 0;
case 0x14:
logger->warn("16-bit read from stubbed GPIO register 0x14");
return 0xFFFF;
// Used e.g. by HID
case 0x28:
logger->warn("16-bit read from stubbed GPIO register 0x28");
return 0;
default:
throw std::runtime_error(fmt::format("16-bit read from unknown GPIO register {:#x}", offset));
}
}
uint32_t Read32(uint32_t offset) {
switch (offset) {
// Used by codec via gpio
case 0x10:
logger->warn("32-bit read from stubbed GPIO register 0x10");
return 0;
// Used e.g. by HID
case 0x20:
logger->warn("32-bit read from stubbed GPIO register 0x20");
return unknown0x20;
case 0x24:
logger->warn("32-bit read from stubbed GPIO register 0x24");
return unknown0x24;
default:
throw std::runtime_error(fmt::format("32-bit read from unknown GPIO register {:#x}", offset));
}
}
void Write16(uint32_t offset, uint16_t value) {
switch (offset) {
case 0x14:
logger->warn("16-bit write of value {:#x} to stubbed GPIO register 0x14", value);
return;
case 0x28:
logger->warn("16-bit write of value {:#x} to stubbed GPIO register 0x28", value);
return;
default:
throw std::runtime_error(fmt::format("16-bit write to unknown GPIO register {:#x}", offset));
}
}
void Write32(uint32_t offset, uint32_t value) {
switch (offset) {
// Used by codec via gpio
case 0x10:
logger->warn("32-bit write of value {:#x} to stubbed GPIO register 0x10", value);
break;
// Used e.g. by HID
case 0x20:
logger->warn("32-bit write of value {:#x} to stubbed GPIO register 0x20", value);
unknown0x20 = value;
break;
case 0x24:
logger->warn("32-bit write of value {:#x} to stubbed GPIO register 0x24", value);
unknown0x24 = value;
break;
default:
throw std::runtime_error(fmt::format("32-bit write to unknown GPIO register {:#x}", offset));
}
}
};
struct SPI : MemoryAccessHandler {
std::shared_ptr<spdlog::logger> logger;
uint32_t unknown_cnt_0x800 = 0;
// TODO: Change to bus number
uint32_t base;
bool read_user_offset = false;
SPI(LogManager& log_manager, const char* log_name, uint32_t base_) : logger(log_manager.RegisterLogger(log_name)), base(base_) {
}
uint8_t Read8(uint32_t offset) {
switch (offset) {
// case 1:
// logger->warn("Stubbed read from unknown SPI register 0x1");
// return 0;
default:
throw std::runtime_error(fmt::format("8-bit read from unknown SPI register {:#x} @ {:#x}", offset, offset + base));
}
}
uint32_t Read32(uint32_t offset) {
switch (offset) {
case 0x800:
return unknown_cnt_0x800;
case 0x80c:
if (read_user_offset) {
read_user_offset = false;
return 0xacacaca;
}
if (base == 0x10160000) {
// TODO: Device 1 (wifi) only. LLE CFG waits for bit 1 to be set in the return value
return 2;
}
[[fallthrough]];
// case 0x810:
// return 2;
default:
// throw std::runtime_error(fmt::format("32-bit read from unknown SPI register {:#x}", offset));
logger->warn("Stubbed 32-bit read from unknown SPI register {:#x} @ {:#x}", offset, offset + base);
return 0;
}
}
void Write32(uint32_t offset, uint32_t value) {
switch (offset) {
case 0x800:
{
// Force the "busy" flag to be clear
unknown_cnt_0x800 = value & 0xffff7fff;
logger->warn("Stubbed 32-bit write of value {:#x} to SPI control register {:#x} @ {:#x}", value, offset, offset + base);
break;
}
case 0x80c:
// TODO: Wifi device (bus 0, devid 1) only
if (value == 0x20000003) {
// read user offset next
read_user_offset = true;
}
[[fallthrough]];
default:
logger->warn("Stubbed 32-bit write of value {:#x} to unknown SPI register {:#x} @ {:#x}", value, offset, offset + base);
// throw std::runtime_error(fmt::format("32-bit write to unknown SPI register {:#x}", offset));
}
}
};
struct CONFIG11 : MemoryAccessHandler {
std::shared_ptr<spdlog::logger> logger;
// TODO: Is this still needed?
Teakra::Teakra *teakra = new Teakra::Teakra(Teakra::CreateInterpreterEngine);
uint16_t unknown0x1c0 = 0;
CONFIG11(LogManager& log_manager) : logger(log_manager.RegisterLogger("IO_CONFIG11")) {
g_teakra = teakra;
}
uint8_t Read8(uint32_t offset) {
switch (offset) {
// Used by the dsp module
case 0x0:
case 0x1:
case 0x2:
case 0x3:
case 0x4:
case 0x5:
case 0x6:
case 0x7:
if (offset >= 0x80000) {
throw Mikage::Exceptions::Invalid("Out-of-bounds read from DSP program memory");
}
logger->warn("8-bit read from DSP program memory offset {:#x}", offset);
return 0; //teakra.ProgramRead(offset);
case 0x8:
case 0x9:
case 0xa:
case 0xb:
case 0xc:
case 0xd:
case 0xe:
case 0xf:
if (offset >= 0x80000) {
throw Mikage::Exceptions::Invalid("Out-of-bounds read from DSP data memory");
}
logger->warn("8-bit read from DSP data memory offset {:#x}", offset);
return 0; //teakra.DataRead(offset);
case 0x10c: // Read by NWM during boot
case 0x180: // WIFICNT. Used by NWM during boot
logger->warn("Stubbed 8-bit read from unknown CONFIG11 register {:#x}", offset);
return 0;
// case 1:
// logger->warn("Stubbed 8-bit read from unknown CONFIG11 register 0x1");
// return 0;
// Used by codec (via pdn:i) during boot
case 0x1220:
logger->warn("Stubbed 8-bit read from unknown CONFIG11 register 0x1220");
return 0;
default:
throw std::runtime_error(fmt::format("8-bit read from unknown CONFIG11 register at offset {:#x}", offset));
}
}
uint32_t Read16(uint32_t offset) {
switch (offset) {
case 0x1c0:
return unknown0x1c0;
default:
throw std::runtime_error(fmt::format("16-bit read from unknown CONFIG11 register at offset {:#x}", offset));
}
}
uint32_t Read32(uint32_t offset) {
switch (offset) {
default:
throw std::runtime_error(fmt::format("32-bit read from unknown CONFIG11 register at offset {:#x}", offset));
}
}
void Write8(uint32_t offset, uint8_t value) {
switch (offset) {
case 0x0:
case 0x1:
case 0x2:
case 0x3:
case 0x4:
case 0x5:
case 0x6:
case 0x7:
if (offset >= 0x80000) {
throw Mikage::Exceptions::Invalid("Out-of-bounds write to DSP program memory");
}
logger->warn("8-bit write of value {:#x} to DSP program memory offset {:#x}", value, offset);
// teakra.ProgramWrite(offset, value);
break;
case 0x8:
case 0x9:
case 0xa:
case 0xb:
case 0xc:
case 0xd:
case 0xe:
case 0xf:
if (offset >= 0x80000) {
throw Mikage::Exceptions::Invalid("Out-of-bounds write to DSP data memory");
}
logger->warn("8-bit write of value {:#x} to DSP data memory offset {:#x}", value, offset);
// teakra.DataWrite(offset, value);
break;
case 0x10c: // Used by NWM during boot
case 0x180: // WIFICNT. Used by NWM during boot
logger->warn("Stubbed 8-bit write of value {:#x} to unknown CONFIG11 register {:#x}", value, offset);
break;
// Used by codec (via pdn:i) during boot to set bit1
case 0x1220:
logger->warn("Stubbed 8-bit write of value {:#x} to unknown CONFIG11 register 0x1220", value);
break;
default:
throw std::runtime_error(fmt::format("8-bit write to unknown CONFIG11 register at offset {:#x}", offset));
}
}
void Write16(uint32_t offset, uint16_t value) {
switch (offset) {
case 0x1c0:
unknown0x1c0 = value;
return;
// case 0x2:
// logger->warn("Stubbed 16-bit write of value {:#x} to unknown CONFIG11 register 0x2", value);
// break;
//
// case 0x4:
// logger->warn("Stubbed 16-bit write of value {:#x} to unknown CONFIG11 register 0x4", value);
// break;
default:
throw std::runtime_error(fmt::format("16-bit write to unknown CONFIG11 register at offset {:#x}", offset));
}
}
void Write32(uint32_t offset, uint32_t value) {
switch (offset) {
case 0x1200:
// GPU related; used by gsp via pdn
logger->warn("Stubbed 32-bit write of value {:#x} to unknown CONFIG11 register 0x1200", value);
break;
default:
throw std::runtime_error(fmt::format("32-bit write to unknown CONFIG11 register at offset {:#x}", offset));
}
}
};
struct DSPMemory : MemoryAccessHandler {
DSPMemory() {
}
uint8_t Read8(uint32_t offset) {
return g_teakra->GetDspMemory()[offset];
}
uint16_t Read16(uint32_t offset) {
return *(uint16_t*)&g_teakra->GetDspMemory()[offset];
}
uint32_t Read32(uint32_t offset) {
return *(uint32_t*)&g_teakra->GetDspMemory()[offset];
}
void Write8(uint32_t offset, uint8_t value) {
*(uint8_t*)&g_teakra->GetDspMemory()[offset] = value;
}
void Write16(uint32_t offset, uint16_t value) {
*(uint16_t*)&g_teakra->GetDspMemory()[offset] = value;
}
void Write32(uint32_t offset, uint32_t value) {
*(uint32_t*)&g_teakra->GetDspMemory()[offset] = value;
}
};
struct DSPConfig {
uint16_t raw;
auto trigger_reset() const { return BitField::v3::MakeFlagOn<0>(&raw); }
auto auto_inc_addr() const { return BitField::v3::MakeFlagOn<1>(&raw); }
auto read_length_raw() const { return BitField::v3::MakeFieldOn<2, 2>(&raw); }
auto trigger_read() const { return BitField::v3::MakeFlagOn<4>(&raw); }
// 0 = Transfer from DSP memory, 1 = Transfer MMIO, 5 = Transfer program memory
auto fifo_transfer_region() const { return BitField::v3::MakeFieldOn<12, 4>(&raw); }
};
struct DSPStatus {
uint16_t raw;
auto reading_from_dsp_memory() const { return BitField::v3::MakeFlagOn<0>(this); }
auto writing_to_dsp_memory() const { return BitField::v3::MakeFlagOn<1>(this); }
// Bit 2: Expected to be zero once reset complete
auto read_fifo_full() const { return BitField::v3::MakeFlagOn<5>(this); }
auto read_fifo_has_data() const { return BitField::v3::MakeFlagOn<6>(this); }
auto write_fifo_full() const { return BitField::v3::MakeFlagOn<7>(this); }
auto write_fifo_empty() const { return BitField::v3::MakeFlagOn<8>(this); }
// 3dbrew erratum: Value 1 indicates the DSP has sent a reply
auto reply_ready_mask() const { return BitField::v3::MakeFieldOn<10, 3>(this); }
bool reply_ready(int channel) const {
return reply_ready_mask() & (1 << channel);
}
// TODO: Rename. This is actually inverted, maybe?
auto command_sent_mask() const { return BitField::v3::MakeFieldOn<13, 3>(this); }
};
static bool just_reset = false;
struct DSPMMIO : MemoryAccessHandler {
std::shared_ptr<spdlog::logger> logger;
DSPConfig config {};
DSPStatus status { DSPStatus{}.write_fifo_empty()(true) };
uint16_t semaphore = 0;
uint16_t semaphore_mask = 0;
// FIFO offset in 16-bit words
uint16_t fifo_offset = 0;
std::optional<uint32_t> read_fifo_remaining = { 0 }; // If empty, unlimited reading is enabled
DSPMMIO(LogManager& log_manager, const char* log_name) : logger(log_manager.RegisterLogger(log_name)) {
}
uint8_t Read8(uint32_t offset) {
switch (offset) {
default:
throw std::runtime_error(fmt::format("8-bit read from unknown DSP register {:#x}", offset));
}
}
void SyncStatusFromTeakra() {
auto new_reply_ready_mask = g_teakra->RecvDataIsReady(0) | (g_teakra->RecvDataIsReady(1) << 1) | (g_teakra->RecvDataIsReady(2) << 2);
auto new_command_sent_mask = (!g_teakra->SendDataIsEmpty(0)) | (!g_teakra->SendDataIsEmpty(1) << 1) | (!g_teakra->SendDataIsEmpty(2) << 2);
status = status.reply_ready_mask()(new_reply_ready_mask).command_sent_mask()(new_command_sent_mask);
}
uint16_t Read16(uint32_t offset) {
switch (offset) {
case 0x0:
{
logger->warn("Stubbed 16-bit read from unknown DSP register {:#x}", offset);
if (config.fifo_transfer_region() != 0) {
throw Mikage::Exceptions::NotImplemented("FIFO read from region other than DSP memory not implemented");
}
if (read_fifo_remaining == 0) {
throw Mikage::Exceptions::Invalid("Trying to read empty DSP FIFO");
}
if (g_teakra->DMAChan0GetDstHigh()) {
throw Mikage::Exceptions::NotImplemented("Unsupported DSP read using upper 16 bits");
}
auto value = g_teakra->DataRead(fifo_offset, true);
if (read_fifo_remaining) {
if (--*read_fifo_remaining == 0) {
status = status.read_fifo_has_data()(false).reading_from_dsp_memory()(false);
}
}
if (config.auto_inc_addr()) {
++fifo_offset;
if (fifo_offset == 0) {
throw Mikage::Exceptions::NotImplemented("Overflow of read address for DSP FIFO");
}
}
return value;
}
case 0x8:
logger->warn("16-bit read from DSP config register {:#x} -> {:#x}", offset, config.raw);
return config.raw;
case 0xc:
{
// Query current status from Teakra before reporting to the application
SyncStatusFromTeakra();
logger->warn("16-bit read from DSP status register {:#x} -> {:#x}", offset, status.raw);
return status.raw;
}
case 0x10:
{
logger->warn("16-bit read from DSP semaphore register: {:#x}", semaphore);
semaphore = g_teakra->GetSemaphore(); // TODO: Needed for DSP LLE to boot, but actually this should be the semaphore for the other APBP direction...
return semaphore;
}
case 0x14:
{
logger->warn("16-bit read from DSP semaphore mask register: {:#x}", semaphore_mask);
return semaphore_mask;
}
case 0x1c:
{
auto sema = g_teakra->GetSemaphore();
logger->warn("16-bit read from DSP semaphore register: {:#x}", sema);
return sema;
}
case 0x24:
case 0x2c:
case 0x34:
{
auto channel = (offset - 0x24) / 8;
auto ret = g_teakra->RecvData(channel);
logger->warn("16-bit read from DSP command register {:#x} -> {:#x}", offset, ret);
if (!just_reset && ret != 1) {
// If we just reset, run DSP for a bit after the DSP module queried the pipe locations.
// TODO: Drop this workaround. It's currently needed to avoid issues booting (e.g. in Home Menu or Super Mario 3D Land)
g_teakra->Run(16384);
g_teakra->Run(16384);
g_teakra->Run(16384);
g_teakra->Run(16384);
g_teakra->Run(16384);
g_teakra->Run(16384);
g_teakra->Run(16384);
// g_teakra->Run(4384);
just_reset = true;
}
return ret;
}
default:
throw std::runtime_error(fmt::format("16-bit read from unknown DSP register {:#x}", offset));
}
}
uint32_t Read32(uint32_t offset) {
switch (offset) {
default:
throw std::runtime_error(fmt::format("32-bit read from unknown DSP register {:#x}", offset));
}
}
void Write16(uint32_t offset, uint16_t value) {
switch (offset) {
case 0x0:
{
logger->warn("Stubbed 16-bit write of value {:#x} unknown DSP register {:#x}", value, offset);
if (config.fifo_transfer_region() != 0) {
throw Mikage::Exceptions::NotImplemented("FIFO write to region other than DSP memory not implemented");
}
if (g_teakra->DMAChan0GetDstHigh()) {
throw Mikage::Exceptions::NotImplemented("Unsupported DSP write using upper 16 bits");
}
g_teakra->DataWrite(fifo_offset, value, true);
if (config.auto_inc_addr()) {
++fifo_offset;
if (fifo_offset == 0) {
throw Mikage::Exceptions::NotImplemented("Overflow of write address for DSP FIFO");
}
}
break;
}
case 0x4:
logger->warn("16-bit write to DSP PADR register: {:#x}", value);
fifo_offset = value;
break;
case 0x8:
{
logger->warn("16-bit write to DSP config register: {:#x}", value);
auto prev_config = config;
config.raw = value;
if (config.trigger_reset() && !prev_config.trigger_reset()) {
g_dsp_running = false;
g_dsp_just_reset = false;
}
if (!config.trigger_reset() && prev_config.trigger_reset()) {
std::vector<std::uint8_t> temp(0x80000);
memcpy(temp.data(), g_teakra->GetDspMemory().data(), temp.size());
delete g_teakra;
g_teakra = new Teakra::Teakra(Teakra::CreateInterpreterEngine);
g_teakra->Reset();
memcpy(g_teakra->GetDspMemory().data(), temp.data(), temp.size());
just_reset = false;
HLE::OS::SetupOSDSPCallbacks(*HLE::OS::g_os);
semaphore = 0;
semaphore_mask = 0;
read_fifo_remaining = 0;
status = DSPStatus{}.write_fifo_empty()(true);
static std::ofstream ofs("samples.raw", std::ios_base::binary);
static std::ofstream ofs2("samples2.raw", std::ios_base::binary);
static std::vector<uint16_t> data;
static std::vector<uint16_t> data2;
static auto audio_callback = [](std::array<int16_t, 2> samples) {
data.push_back(samples[0]);
data2.push_back(samples[1]);
if (data.size() == 0x10000) {
ofs.write((char*)data.data(), data.size() * 2);
data.clear();
}
if (data2.size() == 0x10000) {
ofs2.write((char*)data2.data(), data2.size() * 2);
data2.clear();
}
TeakraAudioCallback(samples);
};
g_teakra->SetAudioCallback(audio_callback);
// g_teakra->SetAudioCallback(TeakraAudioCallback);
// NOTE: These don't seem to be needed (only for unaligned memory accesses?)
static Teakra::AHBMCallback ahbm;
ahbm.read8 = [](uint32_t addr) -> uint8_t {
return ReadLegacy<uint8_t>(*g_mem, addr);
};
ahbm.read16 = [](uint32_t addr) -> uint16_t {
return ReadLegacy<uint16_t>(*g_mem, addr);
};
ahbm.read32 = [](uint32_t addr) -> uint32_t {
return ReadLegacy<uint32_t>(*g_mem, addr);
};
ahbm.write8 = [](uint32_t addr, uint8_t value) {
return WriteLegacy(*g_mem, addr, value);
};
ahbm.write16 = [](uint32_t addr, uint16_t value) {
return WriteLegacy(*g_mem, addr, value);
};
ahbm.write32 = [](uint32_t addr, uint32_t value) {
return WriteLegacy(*g_mem, addr, value);
};
g_teakra->SetAHBMCallback(ahbm);
g_dsp_running = true; // TODO: Remove
g_dsp_just_reset = true;
}
if (config.trigger_read()) {
status = status.read_fifo_has_data()(true).reading_from_dsp_memory()(true);
// TODO: Shouldn't change while trigger_read is true
const uint32_t fifo_sizes[] = { 1, 8, 16 };
if (config.read_length_raw() < 3) {
read_fifo_remaining = fifo_sizes[config.read_length_raw()];
} else {
// Unlimited reading
read_fifo_remaining.reset();
}
} else {
read_fifo_remaining = 0;
status = status.read_fifo_has_data()(false).reading_from_dsp_memory()(false);
}
break;
}
case 0x10:
// NOTE: Teakra internally applies the semaphore mask
logger->warn("16-bit write to DSP semaphore set register: {:#x}", value);
g_teakra->SetSemaphore(value);
semaphore = value;
break;
case 0x14:
logger->warn("16-bit write to DSP semaphore mask register: {:#x}", value);
g_teakra->MaskSemaphore(value);
semaphore_mask = value;
break;
case 0x18:
// NOTE: Teakra internally applies the semaphore mask
logger->warn("16-bit write to DSP semaphore clear register: {:#x}", value);
g_teakra->ClearSemaphore(value);
if (g_teakra->GetSemaphore() == 0) {
status.raw &= ~(1 << 9);
}
break;
case 0x20:
case 0x28:
case 0x30:
{
auto channel = (offset - 0x20) / 8;
logger->warn("16-bit write to DSP command register {:#x} <- {:#x}", offset, value);
g_teakra->SendData(channel, value);
break;
}
default:
throw std::runtime_error(fmt::format("16-bit write to unknown DSP register {:#x} (value {:#x})", offset, value));
}
}
void Write32(uint32_t offset, uint32_t value) {
switch (offset) {
default:
throw std::runtime_error(fmt::format("32-bit write to unknown DSP register {:#x}", offset));
}
}
};
template<typename T, uint32_t PAddrStart, uint32_t Size>
uint8_t ProxyBus<T, PAddrStart, Size>::Read8(uint32_t address) {
return handler->Read8(address - PAddrStart);
}
template<typename T, uint32_t PAddrStart, uint32_t Size>
uint16_t ProxyBus<T, PAddrStart, Size>::Read16(uint32_t address) {
return handler->Read16(address - PAddrStart);
}
template<typename T, uint32_t PAddrStart, uint32_t Size>
uint32_t ProxyBus<T, PAddrStart, Size>::Read32(uint32_t address) {
return handler->Read32(address - PAddrStart);
}
template<typename T, uint32_t PAddrStart, uint32_t Size>
void ProxyBus<T, PAddrStart, Size>::Write8(uint32_t address, uint8_t value) {
handler->Write8(address - PAddrStart, value);
}
template<typename T, uint32_t PAddrStart, uint32_t Size>
void ProxyBus<T, PAddrStart, Size>::Write16(uint32_t address, uint16_t value) {
handler->Write16(address - PAddrStart, value);
}
template<typename T, uint32_t PAddrStart, uint32_t Size>
void ProxyBus<T, PAddrStart, Size>::Write32(uint32_t address, uint32_t value) {
handler->Write32(address - PAddrStart, value);
}
template<typename T, uint32_t PAddrStart, uint32_t Size>
ProxyBus<T, PAddrStart, Size>::ProxyBus(std::unique_ptr<T> handler) : handler(std::move(handler)) {
static_assert(std::is_base_of<MemoryAccessHandler, T>::value, "Handler types must be child classes of MemoryAccessHandler");
}
template<typename T, uint32_t PAddrStart, uint32_t Size>
ProxyBus<T, PAddrStart, Size>::ProxyBus(ProxyBus&& bus) {
handler = std::move(bus.handler);
}
template<typename T, uint32_t PAddrStart, uint32_t Size>
ProxyBus<T, PAddrStart, Size>::~ProxyBus() {
}
template<uint32_t PAddrStart, uint32_t Size>
uint8_t Bus<PAddrStart,Size>::Read8(uint32_t address) {
throw std::runtime_error(fmt::format("Unimplemented read8 from address {:#010x} (bus {:#x}-{:#x})",
address, PAddrStart, PAddrStart + Size));
}
template<uint32_t PAddrStart, uint32_t Size>
uint16_t Bus<PAddrStart,Size>::Read16(uint32_t address) {
throw std::runtime_error(fmt::format("Unimplemented read16 from address {:#010x} (bus {:#x}-{:#x})",
address, PAddrStart, PAddrStart + Size));
}
template<uint32_t PAddrStart, uint32_t Size>
uint32_t Bus<PAddrStart,Size>::Read32(uint32_t address) {
throw std::runtime_error(fmt::format("Unimplemented read32 from address {:#010x} (bus {:#x}-{:#x})",
address, PAddrStart, PAddrStart + Size));
}
template<uint32_t PAddrStart, uint32_t Size>
void Bus<PAddrStart,Size>::Write8(uint32_t address, uint8_t value) {
throw std::runtime_error(fmt::format("Unimplemented 8-bit write of {:#04x} to address {:#010x} (bus {:#x}-{:#x})",
value, address, PAddrStart, PAddrStart + Size));
}
template<uint32_t PAddrStart, uint32_t Size>
void Bus<PAddrStart,Size>::Write16(uint32_t address, uint16_t value) {
throw std::runtime_error(fmt::format("Unimplemented 16-bit write of {:#06x} to address {:#010x} (bus {:#x}-{:#x})",
value, address, PAddrStart, PAddrStart + Size));
}
template<uint32_t PAddrStart, uint32_t Size>
void Bus<PAddrStart,Size>::Write32(uint32_t address, uint32_t value) {
throw std::runtime_error(fmt::format("Unimplemented 32-bit write of {:#10x} to address {:#010x} (bus {:#x}-{:#x})",
value, address, PAddrStart, PAddrStart + Size));
}
uint8_t MemoryAccessHandler::Read8(uint32_t offset) {
throw std::runtime_error(fmt::format("Unimplemented read8 from offset {:#010x}", offset));
}
uint16_t MemoryAccessHandler::Read16(uint32_t offset) {
throw std::runtime_error(fmt::format("Unimplemented read16 from offset {:#010x}", offset));
}
uint32_t MemoryAccessHandler::Read32(uint32_t offset) {
throw std::runtime_error(fmt::format("Unimplemented read32 from offset {:#010x}", offset));
}
void MemoryAccessHandler::Write8(uint32_t offset, uint8_t value) {
throw std::runtime_error(fmt::format("Unimplemented 8-bit write of {:#04x} to offset {:#010x}", value, offset));
}
void MemoryAccessHandler::Write16(uint32_t offset, uint16_t value) {
throw std::runtime_error(fmt::format("Unimplemented 16-bit write of {:#06x} to offset {:#010x}", value, offset));
}
void MemoryAccessHandler::Write32(uint32_t offset, uint32_t value) {
throw std::runtime_error(fmt::format("Unimplemented 32-bit write of {:#10x} to offset {:#010x}", value, offset));
}
// TODO: Stop creating temporary FCRAM pointers and instead use just FCRAM{}
PhysicalMemory::PhysicalMemory(LogManager& log_manager)
// Large memory blocks like FCRAM are explicitly heap-allocated here
: memory(std::move(*std::make_unique<FCRAM>()), std::move(*std::make_unique<VRAM>()),
DSP(std::make_unique<DSPMemory>()),
std::move(*std::make_unique<AXI>()), IO_HID(std::make_unique<HID>(log_manager)),
IO_LCD(std::make_unique<LCD>(log_manager)),
IO_AXI(std::make_unique<AXIHandler>(log_manager)),
IO_GPU(std::make_unique<GPU>(log_manager)),
IO_HASH(std::make_unique<HASH>(log_manager, "IO_HASH_1", 0x10101000)),
IO_CONFIG11(std::make_unique<CONFIG11>(log_manager)),
IO_DSP1(std::make_unique<DSPMMIO>(log_manager, "IO_DSP_1")),
IO_SPIBUS2(std::make_unique<SPI>(log_manager, "IO_SPI_2", 0x10142000)),
IO_SPIBUS3(std::make_unique<SPI>(log_manager, "IO_SPI_3", 0x10143000)),
IO_HASH2(std::make_unique<HASH>(log_manager, "IO_HASH_2", 0x10301000)),
IO_GPIO(std::make_unique<GPIO>(log_manager)),
IO_SPIBUS1(std::make_unique<SPI>(log_manager, "IO_SPI_1", 0x10160000)),
IO_DSP2(std::make_unique<DSPMMIO>(log_manager, "IO_DSP_2")),
MPCorePrivateBus(std::make_unique<MPCorePrivate>())) {
g_mem = this;
}
void PhysicalMemory::InjectDependency(PicaContext& context) {
std::get<IO_GPU>(memory).handler->context = context.context.get();
}
void PhysicalMemory::InjectDependency(InputSource& input) {
std::get<IO_HID>(memory).handler->input = &input;
}
// Instantiate templates explicitly since the handler structures are only
// defined in here to reduce build times
template struct ProxyBus<DSPMemory, 0x1ff00000, 0x80000>;
template struct ProxyBus<HASH, 0x10101000, 0x1000>;
template struct ProxyBus<DSPMMIO, 0x10103000, 0x1000>;
template struct ProxyBus<CONFIG11, 0x10140000, 0x2000>;
template struct ProxyBus<SPI, 0x10142000, 0x1000>;
template struct ProxyBus<SPI, 0x10143000, 0x1000>;
template struct ProxyBus<HID, 0x10146000, 0x1000>;
template struct ProxyBus<GPIO, 0x10147000, 0x1000>;
template struct ProxyBus<SPI, 0x10160000, 0x1000>;
template struct ProxyBus<LCD, 0x10202000, 0x1000>;
template struct ProxyBus<DSPMMIO, 0x10203000, 0x1000>;
template struct ProxyBus<AXIHandler, 0x1020F000, 0x1000>;
template struct ProxyBus<HASH, 0x10301000, 0x1000>;
template struct ProxyBus<GPU, 0x10400000, 0x2000>;
template struct ProxyBus<MPCorePrivate, 0x17e00000, 0x00002000>;
template<HookKind Kind, typename Bus>
static auto& GetHookList(Bus& bus) {
if constexpr (Kind == HookKind::Write) {
return bus.write_hooks;
} else {
return bus.read_hooks;
}
}
template<typename Bus>
static bool HasAnyHooks(Bus& bus, std::size_t page_index) {
return (bus.write_hooks[page_index] || bus.read_hooks[page_index]);
}
template<HookKind Kind>
void SetHook(PhysicalMemory& mem, PAddr start, uint32_t num_bytes, HookHandler<Kind>& hook) {
auto hook_kind_str = HasReadHook(Kind) ? HasWriteHook(Kind) ? "ReadWrite" : "Read" : "Write";
//fprintf(stderr, "HOOK: Setting %#x-%#x (%s)\n", start, start + num_bytes, hook_kind_str);
ValidateContract(start < start + num_bytes);
auto callback = [&](auto& bus) mutable {
if (!IsInside{start}(bus)) {
return false;
}
uint32_t page = (start - bus.start) >> 12;
uint32_t end_page = (start - bus.start + 0x1000 + num_bytes - 1) >> 12;
for (; page < end_page; ++page) {
const bool already_unbacked = HasAnyHooks(bus, page);
std::unique_ptr<HookBase>& bus_hook = GetHookList<Kind>(bus)[page];
// Search the last bus hook before this range start and the first after
HookBase* before = nullptr;
HookBase* after = bus_hook.get();
while (after && after->range.start < start) {
before = after;
after = after->next.get();
}
if (before && before->range.start + before->range.num_bytes > start) {
throw std::runtime_error(fmt::format( "Attempted to set {}Hook at {:#x}-{:#x} overlapping with existing hook at {:#x}-{:#x}",
hook_kind_str, start, start + num_bytes, before->range.start, before->range.start + before->range.num_bytes));
}
if (after && after->range.start < start + num_bytes) {
throw std::runtime_error(fmt::format( "Attempted to set {}Hook at {:#x}-{:#x} overlapping with existing hook at {:#x}-{:#x}",
hook_kind_str, start, start + num_bytes, after->range.start, after->range.start + after->range.num_bytes));
}
if (before && before->range.start + before->range.num_bytes == start) {
// Extend existing entry
before->range.num_bytes += num_bytes;
// Check if all three ranges can be merged
if (after && after->range.start == start + num_bytes) {
auto after_bytes = after->range.num_bytes;
before->next = std::move(after->next);
before->range.num_bytes += after_bytes;
}
} else if (after && after->range.start == start + num_bytes) {
// Extend existing entry
after->range.start -= num_bytes;
after->range.num_bytes += num_bytes;
} else {
// Add new entry
auto hook_start = std::max(start, page << 12);
auto new_bus_hook = std::make_unique<Hook<Kind>>(MemoryRange { hook_start, std::min(bus.start + (page + 1) * 0x1000, start + num_bytes) - hook_start }, hook);
if (before) {
new_bus_hook->next = std::move(before->next);
before->next = std::move(new_bus_hook);
} else {
new_bus_hook->next = std::move(bus_hook);
bus_hook = std::move(new_bus_hook);
}
}
// Unback memory page unless it already is unbacked due to setting a ReadHook nor WriteHook before
if (!already_unbacked) {
for (auto& subscriber : mem.subscribers) {
subscriber->OnUnbackedByHostMemory((page << 12) + bus.start);
}
}
}
return true;
};
detail::ForEachMemoryBus(mem.memory, callback);
}
template void SetHook<HookKind::Read>(PhysicalMemory&, PAddr, uint32_t, ReadHandler&);
template void SetHook<HookKind::Write>(PhysicalMemory&, PAddr, uint32_t, WriteHandler&);
static bool Overlaps(const MemoryRange& range, PAddr start, uint32_t num_bytes) {
return !(range.start + range.num_bytes <= start || start + num_bytes <= range.start);
}
static bool Overlaps(const MemoryRange& range, const MemoryRange& other) {
return Overlaps(range, other.start, other.num_bytes);
}
void ClearHook(PhysicalMemory& mem, HookKind kind, PAddr start, uint32_t num_bytes) {
//fprintf(stderr, "HOOK: Clearing %#x-%#x\n", start, start + num_bytes);
auto callback = [&](auto& bus) mutable {
if (!IsInside{start}(bus)) {
return false;
}
uint32_t page = (start - bus.start) >> 12;
uint32_t end_page = (start - bus.start + 0x1000 + num_bytes - 1) >> 12;
for (; page < end_page; ++page) {
auto clear = [&]<HookKind Kind>(std::unique_ptr<HookBase>* bus_hook, const char* name, Hook<Kind>* /* for template argument inference only */) {
if (!*bus_hook) {
throw std::runtime_error(fmt::format("Attempted to clear {}Hook from a page that had none set", name));
}
while (*bus_hook) {
if (Overlaps(bus_hook->get()->range, MemoryRange { start, num_bytes })) {
// TODO: Assert they share the same handler
if (bus_hook->get()->range.start < start && bus_hook->get()->range.start + bus_hook->get()->range.num_bytes > start + num_bytes) {
// TODO: Need to split the hook into two separate ones
auto after_range = Memory::MemoryRange { start + num_bytes, bus_hook->get()->range.start + bus_hook->get()->range.num_bytes - (start + num_bytes) };
bus_hook->get()->range.num_bytes = start - bus_hook->get()->range.start;
auto new_bus_hook = std::make_unique<Hook<Kind>>(after_range, static_cast<Hook<Kind>*>(bus_hook->get())->handler);
new_bus_hook->next = std::move(bus_hook->get()->next);
bus_hook->get()->next = std::move(new_bus_hook);
} else if (bus_hook->get()->range.start < start) {
// Shorten the hook memory range
bus_hook->get()->range.num_bytes = start - bus_hook->get()->range.start;
ValidateContract(bus_hook->get()->range.start + bus_hook->get()->range.num_bytes == start);
bus_hook = &bus_hook->get()->next;
} else if (bus_hook->get()->range.start + bus_hook->get()->range.num_bytes > start + num_bytes) {
// Push the hook memory range back to the end of the cleared range
auto diff = start + num_bytes - bus_hook->get()->range.start;
bus_hook->get()->range.start += diff;
bus_hook->get()->range.num_bytes -= diff;
ValidateContract(bus_hook->get()->range.start == start + num_bytes);
bus_hook = &bus_hook->get()->next;
} else {
// Clear the entire hook
*bus_hook = std::move(bus_hook->get()->next);
}
} else {
bus_hook = &bus_hook->get()->next;
}
}
};
if (HasReadHook(kind)) {
clear(&GetHookList<HookKind::Read>(bus)[page], "Read", (Hook<HookKind::Read>*)nullptr);
}
if (HasWriteHook(kind)) {
clear(&GetHookList<HookKind::Write>(bus)[page], "Write", (Hook<HookKind::Write>*)nullptr);
}
// Back memory page again if neither ReadHook nor WriteHook are set
if (!HasAnyHooks(bus, page)) {
for (auto& subscriber : mem.subscribers) {
subscriber->OnBackedByHostMemory(detail::GetMemoryBackedPageFor(bus, (page << 12) + bus.start), (page << 12) + bus.start);
}
}
}
return true;
};
detail::ForEachMemoryBus(mem.memory, callback);
}
// Deprecated since this doesn't check for or trigger any memory hooks
HostMemoryBackedPages LookupContiguousMemoryBackedPage(PhysicalMemory& mem, PAddr address, uint32_t num_bytes) {
ValidateContract(num_bytes != 0);
HostMemoryBackedPage out_page = { nullptr };
auto callback = [&](auto& bus) {
if (IsInside{address}(bus)) {
if (address + num_bytes > bus.end) {
throw std::runtime_error("Requested contiguous memory region that extends past available physical memory");
}
int32_t last_page_index = ((address & 0xfff) + num_bytes - 1) >> 12;
int32_t page_index = 0;
// Avoid testing pages that aren't fully covered, since they may have hooks for other memory
// TODO: Find a cleaner way to handle this
if ((address + num_bytes) & 0xfff) {
--last_page_index;
}
if (address & 0xfff) {
++page_index;
}
for (; page_index <= last_page_index; ++page_index) {
PAddr page_start = ((address >> 12) + page_index) << 12;
if (bus.LookupReadHookFor(page_start) || bus.LookupWriteHookFor(page_start)) {
// Disabled for now as VertexLoader is hitting this path (e.g. when transitioning from title screen to menu in TLoZ: Ocarina of Time 3D)
// throw std::runtime_error(fmt::format( "Requested contiguous memory region {:#x}-{:#x} that covers read/write hooks",
// address, address + num_bytes));
}
}
out_page = detail::GetMemoryBackedPageFor(bus, address);
return true;
}
return false;
};
detail::ForEachMemoryBus(mem.memory, callback);
if (out_page.data == nullptr) {
throw std::runtime_error(fmt::format( "Requested invalid physical memory region {:#x}-{:#x}",
address, address + num_bytes));
}
return { out_page.data, num_bytes };
}
template<HookKind AccessMode>
HostMemoryBackedPages LookupContiguousMemoryBackedPage(PhysicalMemory& mem, PAddr address, uint32_t num_bytes) {
ValidateContract(num_bytes != 0);
//fprintf(stderr, "HOOK: Requesting contiguous memory region %#x-%#x\n", address, address + num_bytes);
HostMemoryBackedPage out_page = { nullptr };
auto callback = [&](auto& bus) {
if (IsInside{address}(bus)) {
if (address + num_bytes > bus.end) {
throw std::runtime_error("Requested contiguous memory region that extends past available physical memory");
}
int32_t last_page_index = ((address & 0xfff) + num_bytes - 1) >> 12;
int32_t page_index = 0;
// Avoid testing pages that aren't fully covered, since they may have hooks for other memory
// TODO: Find a cleaner way to handle this
if ((address + num_bytes) & 0xfff) {
// --last_page_index;
}
if (address & 0xfff) {
// ++page_index;
}
for (; page_index <= last_page_index; ++page_index) {
PAddr page_start = ((address >> 12) + page_index) << 12;
if constexpr (HasReadHook(AccessMode)) {
for (HookBase* hook = bus.LookupReadHookFor(page_start); hook; hook = hook->next.get()) {
if (Overlaps(hook->range, MemoryRange { address, num_bytes })) {
throw std::runtime_error(fmt::format( "Requested contiguous memory region {:#x}-{:#x} covers read hooks starting at {:#x}",
address, address + num_bytes, page_start));
}
}
}
if constexpr (HasWriteHook(AccessMode)) {
for (HookBase* hook = bus.LookupWriteHookFor(page_start); hook; hook = hook->next.get()) {
if (Overlaps(hook->range, MemoryRange { address, num_bytes })) {
throw std::runtime_error(fmt::format( "Requested contiguous memory region {:#x}-{:#x} covers write hooks starting at {:#x}",
address, address + num_bytes, page_start));
}
}
}
}
out_page = detail::GetMemoryBackedPageFor(bus, address);
return true;
}
return false;
};
detail::ForEachMemoryBus(mem.memory, callback);
if (out_page.data == nullptr) {
throw std::runtime_error(fmt::format( "Requested invalid physical memory region {:#x}-{:#x}",
address, address + num_bytes));
}
return { out_page.data, num_bytes };
}
template HostMemoryBackedPages LookupContiguousMemoryBackedPage<HookKind::Read>(PhysicalMemory&, PAddr, uint32_t);
template HostMemoryBackedPages LookupContiguousMemoryBackedPage<HookKind::Write>(PhysicalMemory&, PAddr, uint32_t);
template HostMemoryBackedPages LookupContiguousMemoryBackedPage<HookKind::ReadWrite>(PhysicalMemory&, PAddr, uint32_t);
} // namespace Memory
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