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Fix interpretation of 64bit PCI bases: read hi long word from the right bar 

(Michael Yaroslavtsev, Bugzilla #2322).
This commit is contained in:
Egbert Eich 2005-01-25 10:08:18 +00:00
parent 8813898ef6
commit 13b5a93b70
2 changed files with 29 additions and 111 deletions
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138
hw/xfree86/common/xf86pciBus.c
View File

@ -179,7 +179,6 @@ FindPCIVideoInfo(void)
int i = 0, j, k;
int num = 0;
pciVideoPtr info;
Bool mem64 = FALSE;
pcrpp = xf86PciInfo = xf86scanpci(0);
getPciClassFlags(pcrpp);
@ -293,120 +292,39 @@ FindPCIVideoInfo(void)
* 64-bit base addresses are checked for and avoided on 32-bit
* platforms.
*/
if (pcrp->pci_base0) {
if (pcrp->pci_base0 & PCI_MAP_IO) {
info->ioBase[0] = (memType)PCIGETIO(pcrp->pci_base0);
info->type[0] = pcrp->pci_base0 & PCI_MAP_IO_ATTR_MASK;
} else {
info->type[0] = pcrp->pci_base0 & PCI_MAP_MEMORY_ATTR_MASK;
info->memBase[0] = (memType)PCIGETMEMORY(pcrp->pci_base0);
if (PCI_MAP_IS64BITMEM(pcrp->pci_base0)) {
mem64 = TRUE;
for (j = 0; j < 6; ++j) {
CARD32 bar = (&pcrp->pci_base0)[j];
if (bar != 0) {
if (bar & PCI_MAP_IO) {
info->ioBase[j] = (memType)PCIGETIO(bar);
info->type[j] = bar & PCI_MAP_IO_ATTR_MASK;
} else {
info->type[j] = bar & PCI_MAP_MEMORY_ATTR_MASK;
info->memBase[j] = (memType)PCIGETMEMORY(bar);
if (PCI_MAP_IS64BITMEM(bar)) {
if (j == 5) {
xf86MsgVerb(X_WARNING, 0,
"****BAR5 specified as 64-bit wide, "
"which is not possible. "
"Ignoring BAR5.****\n");
info->memBase[j] = 0;
} else {
CARD32 bar_hi = PCIGETMEMORY64HIGH((&pcrp->pci_base0)[j]);
#if defined(LONG64) || defined(WORD64)
info->memBase[0] |=
(memType)PCIGETMEMORY64HIGH(pcrp->pci_base1) << 32;
/* 64 bit architecture */
info->memBase[j] |=
(memType)bar_hi << 32;
#else
if (pcrp->pci_base1)
info->memBase[0] = 0;
if (bar_hi != 0)
info->memBase[j] = 0;
#endif
}
++j; /* Step over the next BAR */
}
}
}
}
}
if (pcrp->pci_base1 && !mem64) {
if (pcrp->pci_base1 & PCI_MAP_IO) {
info->ioBase[1] = (memType)PCIGETIO(pcrp->pci_base1);
info->type[1] = pcrp->pci_base1 & PCI_MAP_IO_ATTR_MASK;
} else {
info->type[1] = pcrp->pci_base1 & PCI_MAP_MEMORY_ATTR_MASK;
info->memBase[1] = (memType)PCIGETMEMORY(pcrp->pci_base1);
if (PCI_MAP_IS64BITMEM(pcrp->pci_base1)) {
mem64 = TRUE;
#if defined(LONG64) || defined(WORD64)
info->memBase[1] |=
(memType)PCIGETMEMORY64HIGH(pcrp->pci_base2) << 32;
#else
if (pcrp->pci_base2)
info->memBase[1] = 0;
#endif
}
}
} else
mem64 = FALSE;
if (pcrp->pci_base2 && !mem64) {
if (pcrp->pci_base2 & PCI_MAP_IO) {
info->ioBase[2] = (memType)PCIGETIO(pcrp->pci_base2);
info->type[2] = pcrp->pci_base2 & PCI_MAP_IO_ATTR_MASK;
} else {
info->type[2] = pcrp->pci_base2 & PCI_MAP_MEMORY_ATTR_MASK;
info->memBase[2] = (memType)PCIGETMEMORY(pcrp->pci_base2);
if (PCI_MAP_IS64BITMEM(pcrp->pci_base2)) {
mem64 = TRUE;
#if defined(LONG64) || defined(WORD64)
info->memBase[2] |=
(memType)PCIGETMEMORY64HIGH(pcrp->pci_base3) << 32;
#else
if (pcrp->pci_base3)
info->memBase[2] = 0;
#endif
}
}
} else
mem64 = FALSE;
if (pcrp->pci_base3 && !mem64) {
if (pcrp->pci_base3 & PCI_MAP_IO) {
info->ioBase[3] = (memType)PCIGETIO(pcrp->pci_base3);
info->type[3] = pcrp->pci_base3 & PCI_MAP_IO_ATTR_MASK;
} else {
info->type[3] = pcrp->pci_base3 & PCI_MAP_MEMORY_ATTR_MASK;
info->memBase[3] = (memType)PCIGETMEMORY(pcrp->pci_base3);
if (PCI_MAP_IS64BITMEM(pcrp->pci_base3)) {
mem64 = TRUE;
#if defined(LONG64) || defined(WORD64)
info->memBase[3] |=
(memType)PCIGETMEMORY64HIGH(pcrp->pci_base4) << 32;
#else
if (pcrp->pci_base4)
info->memBase[3] = 0;
#endif
}
}
} else
mem64 = FALSE;
if (pcrp->pci_base4 && !mem64) {
if (pcrp->pci_base4 & PCI_MAP_IO) {
info->ioBase[4] = (memType)PCIGETIO(pcrp->pci_base4);
info->type[4] = pcrp->pci_base4 & PCI_MAP_IO_ATTR_MASK;
} else {
info->type[4] = pcrp->pci_base4 & PCI_MAP_MEMORY_ATTR_MASK;
info->memBase[4] = (memType)PCIGETMEMORY(pcrp->pci_base4);
if (PCI_MAP_IS64BITMEM(pcrp->pci_base4)) {
mem64 = TRUE;
#if defined(LONG64) || defined(WORD64)
info->memBase[4] |=
(memType)PCIGETMEMORY64HIGH(pcrp->pci_base5) << 32;
#else
if (pcrp->pci_base5)
info->memBase[4] = 0;
#endif
}
}
} else
mem64 = FALSE;
if (pcrp->pci_base5 && !mem64) {
if (pcrp->pci_base5 & PCI_MAP_IO) {
info->ioBase[5] = (memType)PCIGETIO(pcrp->pci_base5);
info->type[5] = pcrp->pci_base5 & PCI_MAP_IO_ATTR_MASK;
} else {
info->type[5] = pcrp->pci_base5 & PCI_MAP_MEMORY_ATTR_MASK;
info->memBase[5] = (memType)PCIGETMEMORY(pcrp->pci_base5);
}
} else
mem64 = FALSE;
info->listed_class = pcrp->listed_class;
}
i++;

2
hw/xfree86/os-support/bus/xf86Pci.h
View File

@ -332,7 +332,7 @@
(((b) & PCI_MAP_MEMORY_TYPE_MASK) == PCI_MAP_MEMORY_TYPE_64BIT)
#define PCIGETMEMORY(b) ((b) & PCI_MAP_MEMORY_ADDRESS_MASK)
#define PCIGETMEMORY64HIGH(b) (*((CARD32*)&b + 1))
#define PCIGETMEMORY64HIGH(b) (*((CARD32*)&(b) + 1))
#define PCIGETMEMORY64(b) \
(PCIGETMEMORY(b) | ((CARD64)PCIGETMEMORY64HIGH(b) << 32))