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pci_bus: Allow device handlers to see word/double-word accesses

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To actually see word-size or double-word-size access in the
handler, they need to be declared as such. So we set the
appropriate access so that aligned word/double-word access are
allowed.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut 2025-05-05 18:32:16 +01:00
parent cef4197171
commit 596491137f
1 changed files with 3 additions and 2 deletions
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5
src/hardware/pci_bus.cpp
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@ -346,8 +346,9 @@ static void InitializePCI(void) {
PCI_ReadHandler[0].Install(0xcf8,read_pci_addr,IO_MD);
// install PCI-register read/write handlers
for (Bitu ct=0;ct<4;ct++) {
PCI_WriteHandler[1+ct].Install(0xcfc+ct,write_pci,IO_MB);
PCI_ReadHandler[1+ct].Install(0xcfc+ct,read_pci,IO_MB);
Bitu msk = IO_MB | ((ct & 1) ? 0 : IO_MW) | ((ct & 3) ? 0 : IO_MD);;
PCI_WriteHandler[1+ct].Install(0xcfc+ct,write_pci,msk);
PCI_ReadHandler[1+ct].Install(0xcfc+ct,read_pci,msk);
}
callback_pci.Install(&PCI_PM_Handler,CB_IRETD,"PCI PM");