diff options
Diffstat (limited to 'arch/sparc64/kernel/pci_iommu.c')
| -rw-r--r-- | arch/sparc64/kernel/pci_iommu.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/arch/sparc64/kernel/pci_iommu.c b/arch/sparc64/kernel/pci_iommu.c index 66712772f494..9e405cbbcb0d 100644 --- a/arch/sparc64/kernel/pci_iommu.c +++ b/arch/sparc64/kernel/pci_iommu.c @@ -37,17 +37,21 @@ /* Must be invoked under the IOMMU lock. */ static void __iommu_flushall(struct iommu *iommu) { - unsigned long tag; - int entry; + if (iommu->iommu_flushinv) { + pci_iommu_write(iommu->iommu_flushinv, ~(u64)0); + } else { + unsigned long tag; + int entry; - tag = iommu->iommu_flush + (0xa580UL - 0x0210UL); - for (entry = 0; entry < 16; entry++) { - pci_iommu_write(tag, 0); - tag += 8; - } + tag = iommu->iommu_flush + (0xa580UL - 0x0210UL); + for (entry = 0; entry < 16; entry++) { + pci_iommu_write(tag, 0); + tag += 8; + } - /* Ensure completion of previous PIO writes. */ - (void) pci_iommu_read(iommu->write_complete_reg); + /* Ensure completion of previous PIO writes. */ + (void) pci_iommu_read(iommu->write_complete_reg); + } } #define IOPTE_CONSISTENT(CTX) \ |