diff options
| -rw-r--r-- | include/hw/pci/pci.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 483d5c7c72..023abc0f79 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -881,6 +881,18 @@ PCI_DMA_DEFINE_LDST(q_be, q_be, 64); #undef PCI_DMA_DEFINE_LDST +/** + * pci_dma_map: Map device PCI address space range into host virtual address + * @dev: #PCIDevice to be accessed + * @addr: address within that device's address space + * @plen: pointer to length of buffer; updated on return to indicate + * if only a subset of the requested range has been mapped + * @dir: indicates the transfer direction + * + * Return: A host pointer, or %NULL if the resources needed to + * perform the mapping are exhausted (in that case *@plen + * is set to zero). + */ static inline void *pci_dma_map(PCIDevice *dev, dma_addr_t addr, dma_addr_t *plen, DMADirection dir) { |