diff options
Diffstat (limited to 'src/mem/page_table.cc')
-rw-r--r-- | src/mem/page_table.cc | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/src/mem/page_table.cc b/src/mem/page_table.cc index 96bc23793..b29a07078 100644 --- a/src/mem/page_table.cc +++ b/src/mem/page_table.cc @@ -90,8 +90,6 @@ PageTable::page_check(Addr addr, int64_t size) const } - - void PageTable::allocate(Addr vaddr, int64_t size) { @@ -109,12 +107,7 @@ PageTable::allocate(Addr vaddr, int64_t size) } pTable[vaddr] = system->new_page(); - pTableCache[2].paddr = pTableCache[1].paddr; - pTableCache[2].vaddr = pTableCache[1].vaddr; - pTableCache[1].paddr = pTableCache[0].paddr; - pTableCache[1].vaddr = pTableCache[0].vaddr; - pTableCache[0].paddr = pTable[vaddr]; - pTableCache[0].vaddr = vaddr; + updateCache(vaddr, pTable[vaddr]); } } @@ -126,16 +119,16 @@ PageTable::translate(Addr vaddr, Addr &paddr) Addr page_addr = pageAlign(vaddr); paddr = 0; - if (pTableCache[0].vaddr == vaddr) { - paddr = pTableCache[0].paddr; + if (pTableCache[0].vaddr == page_addr) { + paddr = pTableCache[0].paddr + pageOffset(vaddr); return true; } - if (pTableCache[1].vaddr == vaddr) { - paddr = pTableCache[1].paddr; + if (pTableCache[1].vaddr == page_addr) { + paddr = pTableCache[1].paddr + pageOffset(vaddr); return true; } - if (pTableCache[2].vaddr == vaddr) { - paddr = pTableCache[2].paddr; + if (pTableCache[2].vaddr == page_addr) { + paddr = pTableCache[2].paddr + pageOffset(vaddr); return true; } @@ -145,6 +138,7 @@ PageTable::translate(Addr vaddr, Addr &paddr) return false; } + updateCache(page_addr, iter->second); paddr = iter->second + pageOffset(vaddr); return true; } |