1 files changed, 19 insertions, 0 deletions

diff --git a/include/asm-alpha/pci.h b/include/asm-alpha/pci.h
index 0c7b57bc043a..b7806aa3785c 100644
--- a/include/asm-alpha/pci.h
+++ b/include/asm-alpha/pci.h
@@ -223,6 +223,25 @@ pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr,
         /* Nothing to do. */
 }
 
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+                                        enum pci_dma_burst_strategy *strat,
+                                        unsigned long *strategy_parameter)
+{
+        unsigned long cacheline_size;
+        u8 byte;
+
+        pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
+        if (byte == 0)
+                cacheline_size = 1024;
+        else
+                cacheline_size = (int) byte * 4;
+
+        *strat = PCI_DMA_BURST_BOUNDARY;
+        *strategy_parameter = cacheline_size;
+}
+#endif
+
 /* TODO: integrate with include/asm-generic/pci.h ? */
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {