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Get AddressSpace to expectMemory from page table entry bits

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Change-Id: I1aacdf98f436261b523765e0ca591e8d8333274e
This commit is contained in:
Hoppe, Mateusz
2018-09-20 19:33:21 -07:00
committed by sys_ocldev
parent e8b6f11cad
commit a470aa2072
7 changed files with 87 additions and 17 deletions
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25
runtime/memory_manager/page_table.cpp
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@@ -5,6 +5,7 @@
*
*/
#include "runtime/aub_mem_dump/page_table_entry_bits.h"
#include "runtime/memory_manager/page_table.h"
#include "runtime/memory_manager/page_table.inl"
@@ -16,19 +17,20 @@ uintptr_t PTE::map(uintptr_t vm, size_t size, uint64_t entryBits, uint32_t memor
size_t indexStart = (vm >> shift) & mask;
size_t indexEnd = ((vm + size - 1) >> shift) & mask;
uintptr_t res = -1;
entryBits &= 0xfff;
entryBits |= 0x1;
bool updateEntryBits = entryBits != PageTableEntry::nonValidBits;
uint64_t newEntryBits = entryBits & 0xfff;
newEntryBits |= 0x1;
for (size_t index = indexStart; index <= indexEnd; index++) {
if (entries[index] == 0x0) {
uint64_t tmp = allocator->reservePage(memoryBank);
entries[index] = reinterpret_cast<void *>(tmp | entryBits);
} else {
entries[index] = reinterpret_cast<void *>((reinterpret_cast<uintptr_t>(entries[index]) & 0xfffff000u) | entryBits);
entries[index] = reinterpret_cast<void *>(tmp | newEntryBits);
} else if (updateEntryBits) {
entries[index] = reinterpret_cast<void *>((reinterpret_cast<uintptr_t>(entries[index]) & 0xfffff000u) | newEntryBits);
}
res = std::min(reinterpret_cast<uintptr_t>(entries[index]) & 0xfffff000u, res);
}
return (res & ~entryBits) + (vm & (pageSize - 1));
return (res & ~newEntryBits) + (vm & (pageSize - 1));
}
void PTE::pageWalk(uintptr_t vm, size_t size, size_t offset, uint64_t entryBits, PageWalker &pageWalker, uint32_t memoryBank) {
@@ -39,15 +41,16 @@ void PTE::pageWalk(uintptr_t vm, size_t size, size_t offset, uint64_t entryBits,
size_t indexEnd = ((vm + size - 1) >> shift) & mask;
uint64_t res = -1;
uintptr_t rem = vm & (pageSize - 1);
entryBits &= 0xfff;
entryBits |= 0x1;
bool updateEntryBits = entryBits != PageTableEntry::nonValidBits;
uint64_t newEntryBits = entryBits & 0xfff;
newEntryBits |= 0x1;
for (size_t index = indexStart; index <= indexEnd; index++) {
if (entries[index] == 0x0) {
uint64_t tmp = allocator->reservePage(memoryBank);
entries[index] = reinterpret_cast<void *>(tmp | entryBits);
} else {
entries[index] = reinterpret_cast<void *>((reinterpret_cast<uintptr_t>(entries[index]) & 0xfffff000u) | entryBits);
entries[index] = reinterpret_cast<void *>(tmp | newEntryBits);
} else if (updateEntryBits) {
entries[index] = reinterpret_cast<void *>((reinterpret_cast<uintptr_t>(entries[index]) & 0xfffff000u) | newEntryBits);
}
res = reinterpret_cast<uintptr_t>(entries[index]) & 0xfffff000u;