+/* DMA access functions */
+static inline int pci_dma_rw(PCIDevice *dev, dma_addr_t addr,
+ void *buf, dma_addr_t len, DMADirection dir)
+{
+ cpu_physical_memory_rw(addr, buf, len, dir == DMA_DIRECTION_FROM_DEVICE);
+ return 0;
+}
+
+static inline int pci_dma_read(PCIDevice *dev, dma_addr_t addr,
+ void *buf, dma_addr_t len)
+{
+ return pci_dma_rw(dev, addr, buf, len, DMA_DIRECTION_TO_DEVICE);
+}
+
+static inline int pci_dma_write(PCIDevice *dev, dma_addr_t addr,
+ const void *buf, dma_addr_t len)
+{
+ return pci_dma_rw(dev, addr, (void *) buf, len, DMA_DIRECTION_FROM_DEVICE);
+}
+
+#define PCI_DMA_DEFINE_LDST(_l, _s, _bits) \
+ static inline uint##_bits##_t ld##_l##_pci_dma(PCIDevice *dev, \
+ dma_addr_t addr) \
+ { \
+ return ld##_l##_phys(addr); \
+ } \
+ static inline void st##_s##_pci_dma(PCIDevice *dev, \
+ dma_addr_t addr, uint##_bits##_t val) \
+ { \
+ st##_s##_phys(addr, val); \
+ }
+
+PCI_DMA_DEFINE_LDST(ub, b, 8);
+PCI_DMA_DEFINE_LDST(uw_le, w_le, 16)
+PCI_DMA_DEFINE_LDST(l_le, l_le, 32);
+PCI_DMA_DEFINE_LDST(q_le, q_le, 64);
+PCI_DMA_DEFINE_LDST(uw_be, w_be, 16)
+PCI_DMA_DEFINE_LDST(l_be, l_be, 32);
+PCI_DMA_DEFINE_LDST(q_be, q_be, 64);
+
+#undef PCI_DMA_DEFINE_LDST
+
+static inline void *pci_dma_map(PCIDevice *dev, dma_addr_t addr,
+ dma_addr_t *plen, DMADirection dir)
+{
+ target_phys_addr_t len = *plen;
+ void *buf;
+
+ buf = cpu_physical_memory_map(addr, &len, dir == DMA_DIRECTION_FROM_DEVICE);
+ *plen = len;
+ return buf;
+}
+
+static inline void pci_dma_unmap(PCIDevice *dev, void *buffer, dma_addr_t len,
+ DMADirection dir, dma_addr_t access_len)
+{
+ cpu_physical_memory_unmap(buffer, len, dir == DMA_DIRECTION_FROM_DEVICE,
+ access_len);
+}
+
+static inline void pci_dma_sglist_init(QEMUSGList *qsg, PCIDevice *dev,
+ int alloc_hint)
+{
+ qemu_sglist_init(qsg, alloc_hint);
+}
+
+extern const VMStateDescription vmstate_pci_device;
+
+#define VMSTATE_PCI_DEVICE(_field, _state) { \
+ .name = (stringify(_field)), \
+ .size = sizeof(PCIDevice), \
+ .vmsd = &vmstate_pci_device, \
+ .flags = VMS_STRUCT, \
+ .offset = vmstate_offset_value(_state, _field, PCIDevice), \
+}
+
+#define VMSTATE_PCI_DEVICE_POINTER(_field, _state) { \
+ .name = (stringify(_field)), \
+ .size = sizeof(PCIDevice), \
+ .vmsd = &vmstate_pci_device, \
+ .flags = VMS_STRUCT|VMS_POINTER, \
+ .offset = vmstate_offset_pointer(_state, _field, PCIDevice), \
+}
+