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Improved BX_INFO message for AGP aperture access. Since the Banshee AGP and

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Voodoo3 AGP driver I have tested are not using this feature, we don't have a
test case yet to implement it correctly. The GART is used by AGP and the newer
PCIe bus and the specs say that the format is defined by software (driver).
This commit is contained in:
Volker Ruppert 2018-05-19 17:13:51 +00:00
parent ae004a3ed3
commit bc8ac37c63
1 changed files with 6 additions and 4 deletions
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10
bochs/iodev/pci.cc
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@ -450,11 +450,12 @@ Bit32u bx_pci_bridge_c::agp_aperture_read(bx_phy_address addr, unsigned len,
if (BX_PCI_THIS pci_conf[0x51] & 0x02) {
Bit32u offset = (addr - pci_bar[0].addr);
Bit32u gart_index = (Bit32u)(offset >> 12);
// Bit32u page_offset = (Bit32u)(offset & 0xfff);
Bit32u page_offset = (Bit32u)(offset & 0xfff);
Bit32u gart_addr = BX_PCI_THIS gart_base + (gart_index << 2);
Bit32u page_addr;
DEV_MEM_READ_PHYSICAL(gart_addr, 4, (Bit8u*)&page_addr);
BX_INFO(("AGP aperture read: page address = 0x%08x", page_addr));
BX_INFO(("TODO: AGP aperture read: page address = 0x%08x / offset = 0x%04x",
page_addr, (Bit16u)page_offset));
// TODO
}
return 0;
@ -475,11 +476,12 @@ void bx_pci_bridge_c::agp_aperture_write(bx_phy_address addr, Bit32u value,
if (BX_PCI_THIS pci_conf[0x51] & 0x02) {
Bit32u offset = (addr - pci_bar[0].addr);
Bit32u gart_index = (Bit32u)(offset >> 12);
// Bit32u page_offset = (Bit32u)(offset & 0xfff);
Bit32u page_offset = (Bit32u)(offset & 0xfff);
Bit32u gart_addr = BX_PCI_THIS gart_base + (gart_index << 2);
Bit32u page_addr;
DEV_MEM_READ_PHYSICAL(gart_addr, 4, (Bit8u*)&page_addr);
BX_INFO(("AGP aperture write: page address = 0x%08x", page_addr));
BX_INFO(("TODO: AGP aperture write: page address = 0x%08x / offset = 0x%04x",
page_addr, (Bit16u)page_offset));
// TODO
}
}