hw/dma: Use dma_addr_t type definition when relevant

Update the obvious places where dma_addr_t should be used
(instead of uint64_t, hwaddr, size_t, int32_t types).

This allows to have &dma_addr_t type portable on 32/64-bit
hosts.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220111184309.28637-11-f4bug@amsat.org>

1 files changed, 9 insertions, 7 deletions

diff --git a/softmmu/dma-helpers.c b/softmmu/dma-helpers.c
index 4563a775aa..916cf12ed4 100644
--- a/softmmu/dma-helpers.c
+++ b/softmmu/dma-helpers.c
@@ -294,12 +294,12 @@ BlockAIOCB *dma_blk_write(BlockBackend *blk,
 }
 
 
-static MemTxResult dma_buf_rw(void *buf, int32_t len, uint64_t *residual,
+static MemTxResult dma_buf_rw(void *buf, dma_addr_t len, dma_addr_t *residual,
                               QEMUSGList *sg, DMADirection dir,
                               MemTxAttrs attrs)
 {
     uint8_t *ptr = buf;
-    uint64_t xresidual;
+    dma_addr_t xresidual;
     int sg_cur_index;
     MemTxResult res = MEMTX_OK;
 
@@ -308,7 +308,7 @@ static MemTxResult dma_buf_rw(void *buf, int32_t len, uint64_t *residual,
     len = MIN(len, xresidual);
     while (len > 0) {
         ScatterGatherEntry entry = sg->sg[sg_cur_index++];
-        int32_t xfer = MIN(len, entry.len);
+        dma_addr_t xfer = MIN(len, entry.len);
         res |= dma_memory_rw(sg->as, entry.base, ptr, xfer, dir, attrs);
         ptr += xfer;
         len -= xfer;
@@ -321,18 +321,20 @@ static MemTxResult dma_buf_rw(void *buf, int32_t len, uint64_t *residual,
     return res;
 }
 
-uint64_t dma_buf_read(void *ptr, int32_t len, QEMUSGList *sg, MemTxAttrs attrs)
+dma_addr_t dma_buf_read(void *ptr, dma_addr_t len,
+                         QEMUSGList *sg, MemTxAttrs attrs)
 {
-    uint64_t residual;
+    dma_addr_t residual;
 
     dma_buf_rw(ptr, len, &residual, sg, DMA_DIRECTION_FROM_DEVICE, attrs);
 
     return residual;
 }
 
-uint64_t dma_buf_write(void *ptr, int32_t len, QEMUSGList *sg, MemTxAttrs attrs)
+dma_addr_t dma_buf_write(void *ptr, dma_addr_t len,
+                          QEMUSGList *sg, MemTxAttrs attrs)
 {
-    uint64_t residual;
+    dma_addr_t residual;
 
     dma_buf_rw(ptr, len, &residual, sg, DMA_DIRECTION_TO_DEVICE, attrs);