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ppcmmu: fix setting of LRU bits.

This commit is contained in:
joevt 2023-08-24 23:09:52 -07:00 committed by Maxim Poliakovski
parent 99f596ea19
commit 6b40caf63a
1 changed files with 6 additions and 6 deletions
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12
cpu/ppc/ppcmmu.cpp
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@ -650,26 +650,26 @@ static inline TLBEntry* lookup_secondary_tlb(uint32_t guest_va, uint32_t tag) {
tlb_entry[2].lru_bits &= 0x1;
tlb_entry[3].lru_bits &= 0x1;
} else if (tlb_entry[1].tag == tag) {
tlb_entry = &tlb_entry[1];
// update LRU bits
tlb_entry[0].lru_bits = 0x2;
tlb_entry[1].lru_bits = 0x3;
tlb_entry[2].lru_bits &= 0x1;
tlb_entry[3].lru_bits &= 0x1;
tlb_entry = &tlb_entry[1];
} else if (tlb_entry[2].tag == tag) {
tlb_entry = &tlb_entry[2];
// update LRU bits
tlb_entry[0].lru_bits &= 0x1;
tlb_entry[1].lru_bits &= 0x1;
tlb_entry[2].lru_bits = 0x3;
tlb_entry[3].lru_bits = 0x2;
tlb_entry = &tlb_entry[2];
} else if (tlb_entry[3].tag == tag) {
tlb_entry = &tlb_entry[3];
// update LRU bits
tlb_entry[0].lru_bits &= 0x1;
tlb_entry[1].lru_bits &= 0x1;
tlb_entry[2].lru_bits = 0x2;
tlb_entry[3].lru_bits = 0x3;
tlb_entry = &tlb_entry[3];
} else {
return nullptr;
}
@ -1597,26 +1597,26 @@ static inline uint64_t tlb_translate_addr(uint32_t guest_va)
tlb2_entry[2].lru_bits &= 0x1;
tlb2_entry[3].lru_bits &= 0x1;
} else if (tlb2_entry[1].tag == tag) {
tlb2_entry = &tlb2_entry[1];
// update LRU bits
tlb2_entry[0].lru_bits = 0x2;
tlb2_entry[1].lru_bits = 0x3;
tlb2_entry[2].lru_bits &= 0x1;
tlb2_entry[3].lru_bits &= 0x1;
tlb2_entry = &tlb2_entry[1];
} else if (tlb2_entry[2].tag == tag) {
tlb2_entry = &tlb2_entry[2];
// update LRU bits
tlb2_entry[0].lru_bits &= 0x1;
tlb2_entry[1].lru_bits &= 0x1;
tlb2_entry[2].lru_bits = 0x3;
tlb2_entry[3].lru_bits = 0x2;
tlb2_entry = &tlb2_entry[2];
} else if (tlb2_entry[3].tag == tag) {
tlb2_entry = &tlb2_entry[3];
// update LRU bits
tlb2_entry[0].lru_bits &= 0x1;
tlb2_entry[1].lru_bits &= 0x1;
tlb2_entry[2].lru_bits = 0x2;
tlb2_entry[3].lru_bits = 0x3;
tlb2_entry = &tlb2_entry[3];
} else { // secondary TLB miss ->
// perform full address translation and refill the secondary TLB
tlb2_entry = dtlb2_refill(guest_va, 0);