diff --git a/hw/lsi53c895a.c b/hw/lsi53c895a.c
index 2984cea..fcc27d7 100644
--- a/hw/lsi53c895a.c
+++ b/hw/lsi53c895a.c
@@ -15,6 +15,8 @@
 #include "hw.h"
 #include "pci.h"
 #include "scsi.h"
+#include "block_int.h"
+#include "dma.h"
 
 //#define DEBUG_LSI
 //#define DEBUG_LSI_REG
@@ -390,10 +392,7 @@
 {
     uint32_t buf;
 
-    /* XXX: an optimization here used to fast-path the read from scripts
-     * memory.  But that bypasses any iommu.
-     */
-    cpu_physical_memory_read(addr, (uint8_t *)&buf, 4);
+    pci_dma_read(&s->dev, addr, (uint8_t *)&buf, 4);
     return cpu_to_le32(buf);
 }
 
@@ -532,7 +531,7 @@
 static void lsi_do_dma(LSIState *s, int out)
 {
     uint32_t count;
-    target_phys_addr_t addr;
+    dma_addr_t addr;
     SCSIDevice *dev;
 
     assert(s->current);
@@ -558,7 +557,7 @@
     else if (s->sbms)
         addr |= ((uint64_t)s->sbms << 32);
 
-    DPRINTF("DMA addr=0x" TARGET_FMT_plx " len=%d\n", addr, count);
+    DPRINTF("DMA addr=0x" DMA_ADDR_FMT " len=%d\n", addr, count);
     s->csbc += count;
     s->dnad += count;
     s->dbc -= count;
@@ -567,9 +566,9 @@
     }
     /* ??? Set SFBR to first data byte.  */
     if (out) {
-        cpu_physical_memory_read(addr, s->current->dma_buf, count);
+        pci_dma_read(&s->dev, addr, s->current->dma_buf, count);
     } else {
-        cpu_physical_memory_write(addr, s->current->dma_buf, count);
+        pci_dma_write(&s->dev, addr, s->current->dma_buf, count);
     }
     s->current->dma_len -= count;
     if (s->current->dma_len == 0) {
@@ -762,7 +761,7 @@
     DPRINTF("Send command len=%d\n", s->dbc);
     if (s->dbc > 16)
         s->dbc = 16;
-    cpu_physical_memory_read(s->dnad, buf, s->dbc);
+    pci_dma_read(&s->dev, s->dnad, buf, s->dbc);
     s->sfbr = buf[0];
     s->command_complete = 0;
 
@@ -813,7 +812,7 @@
     s->dbc = 1;
     status = s->status;
     s->sfbr = status;
-    cpu_physical_memory_write(s->dnad, &status, 1);
+    pci_dma_write(&s->dev, s->dnad, &status, 1);
     lsi_set_phase(s, PHASE_MI);
     s->msg_action = 1;
     lsi_add_msg_byte(s, 0); /* COMMAND COMPLETE */
@@ -827,7 +826,7 @@
     len = s->msg_len;
     if (len > s->dbc)
         len = s->dbc;
-    cpu_physical_memory_write(s->dnad, s->msg, len);
+    pci_dma_write(&s->dev, s->dnad, s->msg, len);
     /* Linux drivers rely on the last byte being in the SIDL.  */
     s->sidl = s->msg[len - 1];
     s->msg_len -= len;
@@ -859,7 +858,7 @@
 static uint8_t lsi_get_msgbyte(LSIState *s)
 {
     uint8_t data;
-    cpu_physical_memory_read(s->dnad, &data, 1);
+    pci_dma_read(&s->dev, s->dnad, &data, 1);
     s->dnad++;
     s->dbc--;
     return data;
@@ -1011,8 +1010,8 @@
     DPRINTF("memcpy dest 0x%08x src 0x%08x count %d\n", dest, src, count);
     while (count) {
         n = (count > LSI_BUF_SIZE) ? LSI_BUF_SIZE : count;
-        cpu_physical_memory_read(src, buf, n);
-        cpu_physical_memory_write(dest, buf, n);
+        pci_dma_read(&s->dev, src, buf, n);
+        pci_dma_write(&s->dev, dest, buf, n);
         src += n;
         dest += n;
         count -= n;
@@ -1080,7 +1079,7 @@
 
             /* 32-bit Table indirect */
             offset = sxt24(addr);
-            cpu_physical_memory_read(s->dsa + offset, (uint8_t *)buf, 8);
+            pci_dma_read(&s->dev, s->dsa + offset, (uint8_t *)buf, 8);
             /* byte count is stored in bits 0:23 only */
             s->dbc = cpu_to_le32(buf[0]) & 0xffffff;
             s->rbc = s->dbc;
@@ -1439,7 +1438,7 @@
             n = (insn & 7);
             reg = (insn >> 16) & 0xff;
             if (insn & (1 << 24)) {
-                cpu_physical_memory_read(addr, data, n);
+                pci_dma_read(&s->dev, addr, data, n);
                 DPRINTF("Load reg 0x%x size %d addr 0x%08x = %08x\n", reg, n,
                         addr, *(int *)data);
                 for (i = 0; i < n; i++) {
@@ -1450,7 +1449,7 @@
                 for (i = 0; i < n; i++) {
                     data[i] = lsi_reg_readb(s, reg + i);
                 }
-                cpu_physical_memory_write(addr, data, n);
+                pci_dma_write(&s->dev, addr, data, n);
             }
         }
     }