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[SPARC64]: Fix 2 bugs in sabre_irq_build() 

When installing the IRQ pre-handler, we were not setting up the second
argument correctly.  It should be a pointer to the sabre_irq_data, not
the config space PIO address.

Furthermore, we only need this pre-handler installed if the device
sits behind a PCI bridge that is not Sabre or Simba/APB.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2006-07-12 15:59:53 -07:00
parent 17556fe861
commit a23c3a86e9
1 changed files with 26 additions and 4 deletions
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30
arch/sparc64/kernel/prom.c
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@ -539,6 +539,25 @@ static unsigned long __sabre_onboard_imap_off[] = {
((ino & 0x20) ? (SABRE_ICLR_SCSI + (((ino) & 0x1f) << 3)) : \
(SABRE_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
static int parent_is_sabre_or_simba(struct device_node *dp)
{
char *parent_model, *parent_compat;
parent_model = of_get_property(dp->parent, "model", NULL);
if (parent_model &&
(!strcmp(parent_model, "SUNW,sabre") ||
!strcmp(parent_model, "SUNW,simba")))
return 1;
parent_compat = of_get_property(dp->parent, "compatible", NULL);
if (parent_compat &&
(!strcmp(parent_compat, "pci108e,a000") ||
!strcmp(parent_compat, "pci108e,a001")))
return 1;
return 0;
}
static unsigned int sabre_irq_build(struct device_node *dp,
unsigned int ino,
void *_data)
@ -577,15 +596,18 @@ static unsigned int sabre_irq_build(struct device_node *dp,
virt_irq = build_irq(inofixup, iclr, imap);
/* If the parent device is a PCI<->PCI bridge other than
* APB, we have to install a pre-handler to ensure that
* all pending DMA is drained before the interrupt handler
* is run.
*/
regs = of_get_property(dp, "reg", NULL);
if (regs &&
((regs->phys_hi >> 16) & 0xff) != irq_data->pci_first_busno) {
!parent_is_sabre_or_simba(dp)) {
irq_install_pre_handler(virt_irq,
sabre_wsync_handler,
(void *) (long) regs->phys_hi,
(void *)
controller_regs +
SABRE_WRSYNC);
(void *) irq_data);
}
return virt_irq;