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ppcmmu: Shorten tlb_flush_entry. 

Don't need a weird short loop.
This commit is contained in:
joevt 2023-08-25 00:03:58 -07:00 committed by dingusdev
parent b7b783b6be
commit cd097232cb
1 changed files with 31 additions and 47 deletions
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78
cpu/ppc/ppcmmu.cpp
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@ -735,59 +735,43 @@ uint8_t *mmu_translate_imem(uint32_t vaddr, uint32_t *paddr)
return host_va;
}
void tlb_flush_entry(uint32_t ea)
static void tlb_flush_primary_entry(std::array<TLBEntry, TLB_SIZE> &tlb1, uint32_t tag)
{
TLBEntry *tlb_entry, *tlb1, *tlb2;
TLBEntry *tlb_entry = &tlb1[(tag >> PAGE_SIZE_BITS) & tlb_size_mask];
if (tlb_entry->tag == tag) {
tlb_entry->tag = TLB_INVALID_TAG;
//LOG_F(INFO, "Invalidated primary TLB entry at 0x%X", ea);
}
}
const uint32_t tag = ea & ~0xFFFUL;
for (int m = 0; m < 6; m++) {
switch (m) {
case 0:
tlb1 = &itlb1_mode1[0];
tlb2 = &itlb2_mode1[0];
break;
case 1:
tlb1 = &itlb1_mode2[0];
tlb2 = &itlb2_mode2[0];
break;
case 2:
tlb1 = &itlb1_mode3[0];
tlb2 = &itlb2_mode3[0];
break;
case 3:
tlb1 = &dtlb1_mode1[0];
tlb2 = &dtlb2_mode1[0];
break;
case 4:
tlb1 = &dtlb1_mode2[0];
tlb2 = &dtlb2_mode2[0];
break;
default:
case 5:
tlb1 = &dtlb1_mode3[0];
tlb2 = &dtlb2_mode3[0];
break;
}
// flush primary TLB
tlb_entry = &tlb1[(ea >> PAGE_SIZE_BITS) & tlb_size_mask];
if (tlb_entry->tag == tag) {
tlb_entry->tag = TLB_INVALID_TAG;
//LOG_F(INFO, "Invalidated primary TLB entry at 0x%X", ea);
}
// flush secondary TLB
tlb_entry = &tlb2[((ea >> PAGE_SIZE_BITS) & tlb_size_mask) * TLB2_WAYS];
for (int i = 0; i < TLB2_WAYS; i++) {
if (tlb_entry[i].tag == tag) {
tlb_entry[i].tag = TLB_INVALID_TAG;
//LOG_F(INFO, "Invalidated secondary TLB entry at 0x%X", ea);
}
static void tlb_flush_secondary_entry(std::array<TLBEntry, TLB_SIZE*TLB2_WAYS> &tlb2, uint32_t tag)
{
TLBEntry *tlb_entry = &tlb2[((tag >> PAGE_SIZE_BITS) & tlb_size_mask) * TLB2_WAYS];
for (int i = 0; i < TLB2_WAYS; i++) {
if (tlb_entry[i].tag == tag) {
tlb_entry[i].tag = TLB_INVALID_TAG;
//LOG_F(INFO, "Invalidated secondary TLB entry at 0x%X", ea);
}
}
}
void tlb_flush_entry(uint32_t ea)
{
const uint32_t tag = ea & ~0xFFFUL;
tlb_flush_primary_entry(itlb1_mode1, tag);
tlb_flush_secondary_entry(itlb2_mode1, tag);
tlb_flush_primary_entry(itlb1_mode2, tag);
tlb_flush_secondary_entry(itlb2_mode2, tag);
tlb_flush_primary_entry(itlb1_mode3, tag);
tlb_flush_secondary_entry(itlb2_mode3, tag);
tlb_flush_primary_entry(dtlb1_mode1, tag);
tlb_flush_secondary_entry(dtlb2_mode1, tag);
tlb_flush_primary_entry(dtlb1_mode2, tag);
tlb_flush_secondary_entry(dtlb2_mode2, tag);
tlb_flush_primary_entry(dtlb1_mode3, tag);
tlb_flush_secondary_entry(dtlb2_mode3, tag);
}
template <const TLBType tlb_type>
void tlb_flush_entries(TLBFlags type)
{