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VideoCore: Update MemoryManager

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This commit is contained in:
Fernando Sahmkow 2021-11-11 21:24:40 +01:00
parent b617874724
commit cbaf3fb433
4 changed files with 86 additions and 167 deletions
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7
src/common/multi_level_page_table.inc
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@ -20,7 +20,7 @@ MultiLevelPageTable<BaseAddr>::MultiLevelPageTable(std::size_t address_space_bit
: address_space_bits{address_space_bits_},
first_level_bits{first_level_bits_}, page_bits{page_bits_} {
first_level_shift = address_space_bits - first_level_bits;
first_level_chunk_size = 1ULL << (first_level_shift - page_bits);
first_level_chunk_size = (1ULL << (first_level_shift - page_bits)) * sizeof(BaseAddr);
alloc_size = (1ULL << (address_space_bits - page_bits)) * sizeof(BaseAddr);
std::size_t first_level_size = 1ULL << first_level_bits;
first_level_map.resize(first_level_size, nullptr);
@ -53,8 +53,7 @@ MultiLevelPageTable<BaseAddr>::~MultiLevelPageTable() noexcept {
template <typename BaseAddr>
void MultiLevelPageTable<BaseAddr>::ReserveRange(u64 start, std::size_t size) {
const u64 new_start = start >> first_level_shift;
const u64 new_end =
(start + size + (first_level_chunk_size << page_bits) - 1) >> first_level_shift;
const u64 new_end = (start + size) >> first_level_shift;
for (u64 i = new_start; i <= new_end; i++) {
if (!first_level_map[i]) {
AllocateLevel(i);
@ -64,7 +63,7 @@ void MultiLevelPageTable<BaseAddr>::ReserveRange(u64 start, std::size_t size) {
template <typename BaseAddr>
void MultiLevelPageTable<BaseAddr>::AllocateLevel(u64 level) {
void* ptr = reinterpret_cast<char*>(base_ptr) + level * first_level_chunk_size;
void* ptr = reinterpret_cast<char *>(base_ptr) + level * first_level_chunk_size;
#ifdef _WIN32
void* base{VirtualAlloc(ptr, first_level_chunk_size, MEM_COMMIT, PAGE_READWRITE)};
#else