aboutsummaryrefslogtreecommitdiff
path: root/include/asm-parisc/pci.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-parisc/pci.h')
-rw-r--r--include/asm-parisc/pci.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h
index 0763c2982fb0..f9f5bf90111d 100644
--- a/include/asm-parisc/pci.h
+++ b/include/asm-parisc/pci.h
@@ -230,6 +230,23 @@ extern inline void pcibios_register_hba(struct pci_hba_data *x)
/* export the pci_ DMA API in terms of the dma_ one */
#include <asm-generic/pci-dma-compat.h>
+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_MULTIPLE;
+ *strategy_parameter = cacheline_size;
+}
+
extern void
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res);