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Diffstat (limited to 'dma-helpers.c')
-rw-r--r--dma-helpers.c24
1 files changed, 7 insertions, 17 deletions
diff --git a/dma-helpers.c b/dma-helpers.c
index c53705a..5afba47 100644
--- a/dma-helpers.c
+++ b/dma-helpers.c
@@ -14,11 +14,9 @@
/* #define DEBUG_IOMMU */
-int dma_memory_set(DMAContext *dma, dma_addr_t addr, uint8_t c, dma_addr_t len)
+int dma_memory_set(AddressSpace *as, dma_addr_t addr, uint8_t c, dma_addr_t len)
{
- AddressSpace *as = dma->as;
-
- dma_barrier(dma, DMA_DIRECTION_FROM_DEVICE);
+ dma_barrier(as, DMA_DIRECTION_FROM_DEVICE);
#define FILLBUF_SIZE 512
uint8_t fillbuf[FILLBUF_SIZE];
@@ -36,13 +34,13 @@ int dma_memory_set(DMAContext *dma, dma_addr_t addr, uint8_t c, dma_addr_t len)
return error;
}
-void qemu_sglist_init(QEMUSGList *qsg, int alloc_hint, DMAContext *dma)
+void qemu_sglist_init(QEMUSGList *qsg, int alloc_hint, AddressSpace *as)
{
qsg->sg = g_malloc(alloc_hint * sizeof(ScatterGatherEntry));
qsg->nsg = 0;
qsg->nalloc = alloc_hint;
qsg->size = 0;
- qsg->dma = dma;
+ qsg->as = as;
}
void qemu_sglist_add(QEMUSGList *qsg, dma_addr_t base, dma_addr_t len)
@@ -102,7 +100,7 @@ static void dma_bdrv_unmap(DMAAIOCB *dbs)
int i;
for (i = 0; i < dbs->iov.niov; ++i) {
- dma_memory_unmap(dbs->sg->dma, dbs->iov.iov[i].iov_base,
+ dma_memory_unmap(dbs->sg->as, dbs->iov.iov[i].iov_base,
dbs->iov.iov[i].iov_len, dbs->dir,
dbs->iov.iov[i].iov_len);
}
@@ -150,7 +148,7 @@ static void dma_bdrv_cb(void *opaque, int ret)
while (dbs->sg_cur_index < dbs->sg->nsg) {
cur_addr = dbs->sg->sg[dbs->sg_cur_index].base + dbs->sg_cur_byte;
cur_len = dbs->sg->sg[dbs->sg_cur_index].len - dbs->sg_cur_byte;
- mem = dma_memory_map(dbs->sg->dma, cur_addr, &cur_len, dbs->dir);
+ mem = dma_memory_map(dbs->sg->as, cur_addr, &cur_len, dbs->dir);
if (!mem)
break;
qemu_iovec_add(&dbs->iov, mem, cur_len);
@@ -247,7 +245,7 @@ static uint64_t dma_buf_rw(uint8_t *ptr, int32_t len, QEMUSGList *sg,
while (len > 0) {
ScatterGatherEntry entry = sg->sg[sg_cur_index++];
int32_t xfer = MIN(len, entry.len);
- dma_memory_rw(sg->dma, entry.base, ptr, xfer, dir);
+ dma_memory_rw(sg->as, entry.base, ptr, xfer, dir);
ptr += xfer;
len -= xfer;
resid -= xfer;
@@ -271,11 +269,3 @@ void dma_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie,
{
bdrv_acct_start(bs, cookie, sg->size, type);
}
-
-void dma_context_init(DMAContext *dma, AddressSpace *as)
-{
-#ifdef DEBUG_IOMMU
- fprintf(stderr, "dma_context_init(%p -> %p)\n", dma, as);
-#endif
- dma->as = as;
-}