80486DX2-66/86Box-fork
1
0
Fork 0
Code Issues Pull Requests Activity

VIA Apollo VPX: Fix SMRAM handling.

Browse Source
This commit is contained in:
OBattler
2024-06-01 02:00:22 +02:00
parent 3c907287e1
commit ab137e999e
1 changed files with 14 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
src/chipset/via_apollo.c
View File

@@ -444,7 +444,7 @@ via_apollo_host_bridge_write(int func, int addr, uint8_t val, void *priv)
apollo_smram_map(dev, 0, 0x000a0000, 0x00020000, 0); apollo_smram_map(dev, 0, 0x000a0000, 0x00020000, 0);
break; break;
} }
else else if (dev->id == VIA_595)
switch (val & 0x03) { switch (val & 0x03) {
case 0x00: case 0x00:
apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 0); apollo_smram_map(dev, 1, 0x000a0000, 0x00020000, 0);
@@ -468,6 +468,12 @@ via_apollo_host_bridge_write(int func, int addr, uint8_t val, void *priv)
default: default:
break; break;
} }
else {
smram_enable(dev->smram, 0x000a0000, 0x000a0000, 0x00020000,
(dev->pci_conf[0x6d] & 0x10) && (dev->pci_conf[0x63] & 0x01),
dev->pci_conf[0x63] & 0x01);
flushmmucache();
}
break; break;
case 0x65: case 0x65:
if (dev->id == VIA_585) if (dev->id == VIA_585)
@@ -532,6 +538,13 @@ via_apollo_host_bridge_write(int func, int addr, uint8_t val, void *priv)
dev->pci_conf[0x6d] = (dev->pci_conf[0x6d] & ~0x7f) | (val & 0x7f); dev->pci_conf[0x6d] = (dev->pci_conf[0x6d] & ~0x7f) | (val & 0x7f);
else else
dev->pci_conf[0x6d] = val; dev->pci_conf[0x6d] = val;
if (dev->id == VIA_585) {
smram_disable_all();
smram_enable(dev->smram, 0x000a0000, 0x000a0000, 0x00020000,
(dev->pci_conf[0x6d] & 0x10) && (dev->pci_conf[0x63] & 0x01),
dev->pci_conf[0x63] & 0x01);
flushmmucache();
}
break; break;
case 0x6e: case 0x6e:
if ((dev->id == VIA_595) || (dev->id == VIA_694)) if ((dev->id == VIA_595) || (dev->id == VIA_694))