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core/memory: Migrate over ZeroBlock() and CopyBlock() to the Memory class

Browse source 
These currently aren't used anywhere in the codebase, so these are very
trivial to move over to the Memory class.
This commit is contained in:
Lioncash 2019-11-26 16:06:49 -05:00
parent 849581075a
commit 89ef3ef575
2 changed files with 161 additions and 91 deletions
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199
src/core/memory.cpp
View file

@ -225,6 +225,99 @@ struct Memory::Impl {
return string;
}
void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const std::size_t size) {
const auto& page_table = process.VMManager().page_table;
std::size_t remaining_size = size;
std::size_t page_index = dest_addr >> PAGE_BITS;
std::size_t page_offset = dest_addr & PAGE_MASK;
while (remaining_size > 0) {
const std::size_t copy_amount =
std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size);
const auto current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
switch (page_table.attributes[page_index]) {
case Common::PageType::Unmapped: {
LOG_ERROR(HW_Memory,
"Unmapped ZeroBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
current_vaddr, dest_addr, size);
break;
}
case Common::PageType::Memory: {
DEBUG_ASSERT(page_table.pointers[page_index]);
u8* dest_ptr = page_table.pointers[page_index] + page_offset;
std::memset(dest_ptr, 0, copy_amount);
break;
}
case Common::PageType::RasterizerCachedMemory: {
u8* const host_ptr = GetPointerFromVMA(process, current_vaddr);
system.GPU().InvalidateRegion(ToCacheAddr(host_ptr), copy_amount);
std::memset(host_ptr, 0, copy_amount);
break;
}
default:
UNREACHABLE();
}
page_index++;
page_offset = 0;
remaining_size -= copy_amount;
}
}
void ZeroBlock(const VAddr dest_addr, const std::size_t size) {
ZeroBlock(*system.CurrentProcess(), dest_addr, size);
}
void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
const std::size_t size) {
const auto& page_table = process.VMManager().page_table;
std::size_t remaining_size = size;
std::size_t page_index = src_addr >> PAGE_BITS;
std::size_t page_offset = src_addr & PAGE_MASK;
while (remaining_size > 0) {
const std::size_t copy_amount =
std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size);
const auto current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
switch (page_table.attributes[page_index]) {
case Common::PageType::Unmapped: {
LOG_ERROR(HW_Memory,
"Unmapped CopyBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
current_vaddr, src_addr, size);
ZeroBlock(process, dest_addr, copy_amount);
break;
}
case Common::PageType::Memory: {
DEBUG_ASSERT(page_table.pointers[page_index]);
const u8* src_ptr = page_table.pointers[page_index] + page_offset;
WriteBlock(process, dest_addr, src_ptr, copy_amount);
break;
}
case Common::PageType::RasterizerCachedMemory: {
const u8* const host_ptr = GetPointerFromVMA(process, current_vaddr);
system.GPU().FlushRegion(ToCacheAddr(host_ptr), copy_amount);
WriteBlock(process, dest_addr, host_ptr, copy_amount);
break;
}
default:
UNREACHABLE();
}
page_index++;
page_offset = 0;
dest_addr += static_cast<VAddr>(copy_amount);
src_addr += static_cast<VAddr>(copy_amount);
remaining_size -= copy_amount;
}
}
void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) {
return CopyBlock(*system.CurrentProcess(), dest_addr, src_addr, size);
}
void RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached) {
if (vaddr == 0) {
return;
@ -381,6 +474,23 @@ std::string Memory::ReadCString(VAddr vaddr, std::size_t max_length) {
return impl->ReadCString(vaddr, max_length);
}
void Memory::ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size) {
impl->ZeroBlock(process, dest_addr, size);
}
void Memory::ZeroBlock(VAddr dest_addr, std::size_t size) {
impl->ZeroBlock(dest_addr, size);
}
void Memory::CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
const std::size_t size) {
impl->CopyBlock(process, dest_addr, src_addr, size);
}
void Memory::CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) {
impl->CopyBlock(dest_addr, src_addr, size);
}
void Memory::RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached) {
impl->RasterizerMarkRegionCached(vaddr, size, cached);
}
@ -529,93 +639,4 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t
WriteBlock(*Core::System::GetInstance().CurrentProcess(), dest_addr, src_buffer, size);
}
void ZeroBlock(const Kernel::Process& process, const VAddr dest_addr, const std::size_t size) {
const auto& page_table = process.VMManager().page_table;
std::size_t remaining_size = size;
std::size_t page_index = dest_addr >> PAGE_BITS;
std::size_t page_offset = dest_addr & PAGE_MASK;
while (remaining_size > 0) {
const std::size_t copy_amount =
std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size);
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
switch (page_table.attributes[page_index]) {
case Common::PageType::Unmapped: {
LOG_ERROR(HW_Memory,
"Unmapped ZeroBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
current_vaddr, dest_addr, size);
break;
}
case Common::PageType::Memory: {
DEBUG_ASSERT(page_table.pointers[page_index]);
u8* dest_ptr = page_table.pointers[page_index] + page_offset;
std::memset(dest_ptr, 0, copy_amount);
break;
}
case Common::PageType::RasterizerCachedMemory: {
const auto& host_ptr{GetPointerFromVMA(process, current_vaddr)};
Core::System::GetInstance().GPU().InvalidateRegion(ToCacheAddr(host_ptr), copy_amount);
std::memset(host_ptr, 0, copy_amount);
break;
}
default:
UNREACHABLE();
}
page_index++;
page_offset = 0;
remaining_size -= copy_amount;
}
}
void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
const std::size_t size) {
const auto& page_table = process.VMManager().page_table;
std::size_t remaining_size = size;
std::size_t page_index = src_addr >> PAGE_BITS;
std::size_t page_offset = src_addr & PAGE_MASK;
while (remaining_size > 0) {
const std::size_t copy_amount =
std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size);
const VAddr current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset);
switch (page_table.attributes[page_index]) {
case Common::PageType::Unmapped: {
LOG_ERROR(HW_Memory,
"Unmapped CopyBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})",
current_vaddr, src_addr, size);
ZeroBlock(process, dest_addr, copy_amount);
break;
}
case Common::PageType::Memory: {
DEBUG_ASSERT(page_table.pointers[page_index]);
const u8* src_ptr = page_table.pointers[page_index] + page_offset;
WriteBlock(process, dest_addr, src_ptr, copy_amount);
break;
}
case Common::PageType::RasterizerCachedMemory: {
const auto& host_ptr{GetPointerFromVMA(process, current_vaddr)};
Core::System::GetInstance().GPU().FlushRegion(ToCacheAddr(host_ptr), copy_amount);
WriteBlock(process, dest_addr, host_ptr, copy_amount);
break;
}
default:
UNREACHABLE();
}
page_index++;
page_offset = 0;
dest_addr += static_cast<VAddr>(copy_amount);
src_addr += static_cast<VAddr>(copy_amount);
remaining_size -= copy_amount;
}
}
void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) {
CopyBlock(*Core::System::GetInstance().CurrentProcess(), dest_addr, src_addr, size);
}
} // namespace Memory

53
src/core/memory.h
View file

@ -169,6 +169,57 @@ public:
*/
std::string ReadCString(VAddr vaddr, std::size_t max_length);
/**
* Fills the specified address range within a process' address space with zeroes.
*
* @param process The process that will have a portion of its memory zeroed out.
* @param dest_addr The starting virtual address of the range to zero out.
* @param size The size of the address range to zero out, in bytes.
*
* @post The range [dest_addr, size) within the process' address space is
* filled with zeroes.
*/
void ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size);
/**
* Fills the specified address range within the current process' address space with zeroes.
*
* @param dest_addr The starting virtual address of the range to zero out.
* @param size The size of the address range to zero out, in bytes.
*
* @post The range [dest_addr, size) within the current process' address space is
* filled with zeroes.
*/
void ZeroBlock(VAddr dest_addr, std::size_t size);
/**
* Copies data within a process' address space to another location within the
* same address space.
*
* @param process The process that will have data copied within its address space.
* @param dest_addr The destination virtual address to begin copying the data into.
* @param src_addr The source virtual address to begin copying the data from.
* @param size The size of the data to copy, in bytes.
*
* @post The range [dest_addr, size) within the process' address space contains the
* same data within the range [src_addr, size).
*/
void CopyBlock(const Kernel::Process& process, VAddr dest_addr, VAddr src_addr,
std::size_t size);
/**
* Copies data within the current process' address space to another location within the
* same address space.
*
* @param dest_addr The destination virtual address to begin copying the data into.
* @param src_addr The source virtual address to begin copying the data from.
* @param size The size of the data to copy, in bytes.
*
* @post The range [dest_addr, size) within the current process' address space
* contains the same data within the range [src_addr, size).
*/
void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size);
/**
* Marks each page within the specified address range as cached or uncached.
*
@ -206,7 +257,5 @@ void ReadBlock(VAddr src_addr, void* dest_buffer, std::size_t size);
void WriteBlock(const Kernel::Process& process, VAddr dest_addr, const void* src_buffer,
std::size_t size);
void WriteBlock(VAddr dest_addr, const void* src_buffer, std::size_t size);
void ZeroBlock(const Kernel::Process& process, VAddr dest_addr, std::size_t size);
void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size);
} // namespace Memory