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- Initialize auto variable (win[{0,1}].win_flags). 

- If PCCBB_MEM_CACHABLE isn't set, clear CB_BCR_PREFETCH_MEMWIN[01].
This commit is contained in:
enami 2001-02-22 10:39:31 +00:00
parent 062c4f6e22
commit 79d20d7c7a
1 changed files with 10 additions and 13 deletions
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23
sys/dev/pci/pccbb.c
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@ -1,4 +1,4 @@
/* $NetBSD: pccbb.c,v 1.60 2001/02/21 21:39:58 jdolecek Exp $ */
/* $NetBSD: pccbb.c,v 1.61 2001/02/22 10:39:31 enami Exp $ */
/*
* Copyright (c) 1998, 1999 and 2000
@ -3098,10 +3098,9 @@ pccbb_winset(align, sc, bst)
struct pccbb_win_chain *chainp;
int offs;
win[0].win_start = 0xffffffff;
win[0].win_limit = 0;
win[1].win_start = 0xffffffff;
win[1].win_limit = 0;
win[0].win_start = win[1].win_start = 0xffffffff;
win[0].win_limit = win[1].win_limit = 0;
win[0].win_flags = win[1].win_flags = 0;
chainp = TAILQ_FIRST(&sc->sc_iowindow);
offs = 0x2c;
@ -3195,16 +3194,14 @@ pccbb_winset(align, sc, bst)
pci_conf_read(pc, tag, offs + 12) + align));
if (bst == sc->sc_memt) {
if (win[0].win_flags & PCCBB_MEM_CACHABLE) {
pcireg_t bcr = pci_conf_read(pc, tag, PCI_BCR_INTR);
pcireg_t bcr = pci_conf_read(pc, tag, PCI_BCR_INTR);
bcr &= ~(CB_BCR_PREFETCH_MEMWIN0 | CB_BCR_PREFETCH_MEMWIN1);
if (win[0].win_flags & PCCBB_MEM_CACHABLE)
bcr |= CB_BCR_PREFETCH_MEMWIN0;
pci_conf_write(pc, tag, PCI_BCR_INTR, bcr);
}
if (win[1].win_flags & PCCBB_MEM_CACHABLE) {
pcireg_t bcr = pci_conf_read(pc, tag, PCI_BCR_INTR);
if (win[1].win_flags & PCCBB_MEM_CACHABLE)
bcr |= CB_BCR_PREFETCH_MEMWIN1;
pci_conf_write(pc, tag, PCI_BCR_INTR, bcr);
}
pci_conf_write(pc, tag, PCI_BCR_INTR, bcr);
}
}