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-rw-r--r--arch/sparc64/kernel/pci_iommu.c16
-rw-r--r--arch/sparc64/kernel/sbus.c4
2 files changed, 11 insertions, 9 deletions
diff --git a/arch/sparc64/kernel/pci_iommu.c b/arch/sparc64/kernel/pci_iommu.c
index f009b1b..33ca56c 100644
--- a/arch/sparc64/kernel/pci_iommu.c
+++ b/arch/sparc64/kernel/pci_iommu.c
@@ -392,14 +392,16 @@ static void pci_strbuf_flush(struct pci_strbuf *strbuf, struct pci_iommu *iommu,
flushreg = strbuf->strbuf_ctxflush;
matchreg = PCI_STC_CTXMATCH_ADDR(strbuf, ctx);
- limit = 10000;
- do {
- pci_iommu_write(flushreg, ctx);
- udelay(10);
+ limit = 100000;
+ pci_iommu_write(flushreg, ctx);
+ for(;;) {
+ if (((long)pci_iommu_read(matchreg)) >= 0L)
+ break;
limit--;
if (!limit)
break;
- } while(((long)pci_iommu_read(matchreg)) < 0L);
+ udelay(1);
+ }
if (!limit)
printk(KERN_WARNING "pci_strbuf_flush: ctx flush "
"timeout vaddr[%08x] ctx[%lx]\n",
@@ -414,12 +416,12 @@ static void pci_strbuf_flush(struct pci_strbuf *strbuf, struct pci_iommu *iommu,
pci_iommu_write(strbuf->strbuf_fsync, strbuf->strbuf_flushflag_pa);
(void) pci_iommu_read(iommu->write_complete_reg);
- limit = 10000;
+ limit = 100000;
while (!PCI_STC_FLUSHFLAG_SET(strbuf)) {
limit--;
if (!limit)
break;
- udelay(10);
+ udelay(1);
membar("#LoadLoad");
}
if (!limit)
diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c
index d3eca98..76ea645 100644
--- a/arch/sparc64/kernel/sbus.c
+++ b/arch/sparc64/kernel/sbus.c
@@ -133,12 +133,12 @@ static void sbus_strbuf_flush(struct sbus_iommu *iommu, u32 base, unsigned long
iommu->strbuf_regs + STRBUF_FSYNC);
upa_readq(iommu->sbus_control_reg);
- limit = 10000;
+ limit = 100000;
while (iommu->strbuf_flushflag == 0UL) {
limit--;
if (!limit)
break;
- udelay(10);
+ udelay(1);
membar("#LoadLoad");
}
if (!limit)