dma: eliminate DMAContext

The DMAContext is a simple pointer to an AddressSpace that is now always
already available.  Make everyone hold the address space directly,
and clean up the DMA API to use the AddressSpace directly.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 9 insertions, 10 deletions

diff --git a/include/hw/ppc/spapr_vio.h b/include/hw/ppc/spapr_vio.h
index 2de58f1753..36093270e6 100644
--- a/include/hw/ppc/spapr_vio.h
+++ b/include/hw/ppc/spapr_vio.h
@@ -64,7 +64,6 @@ struct VIOsPAPRDevice {
     target_ulong signal_state;
     VIOsPAPR_CRQ crq;
     AddressSpace as;
-    DMAContext dma;
     sPAPRTCETable *tcet;
 };
 
@@ -93,35 +92,35 @@ static inline qemu_irq spapr_vio_qirq(VIOsPAPRDevice *dev)
 static inline bool spapr_vio_dma_valid(VIOsPAPRDevice *dev, uint64_t taddr,
                                        uint32_t size, DMADirection dir)
 {
-    return dma_memory_valid(&dev->dma, taddr, size, dir);
+    return dma_memory_valid(&dev->as, taddr, size, dir);
 }
 
 static inline int spapr_vio_dma_read(VIOsPAPRDevice *dev, uint64_t taddr,
                                      void *buf, uint32_t size)
 {
-    return (dma_memory_read(&dev->dma, taddr, buf, size) != 0) ?
+    return (dma_memory_read(&dev->as, taddr, buf, size) != 0) ?
         H_DEST_PARM : H_SUCCESS;
 }
 
 static inline int spapr_vio_dma_write(VIOsPAPRDevice *dev, uint64_t taddr,
                                       const void *buf, uint32_t size)
 {
-    return (dma_memory_write(&dev->dma, taddr, buf, size) != 0) ?
+    return (dma_memory_write(&dev->as, taddr, buf, size) != 0) ?
         H_DEST_PARM : H_SUCCESS;
 }
 
 static inline int spapr_vio_dma_set(VIOsPAPRDevice *dev, uint64_t taddr,
                                     uint8_t c, uint32_t size)
 {
-    return (dma_memory_set(&dev->dma, taddr, c, size) != 0) ?
+    return (dma_memory_set(&dev->as, taddr, c, size) != 0) ?
         H_DEST_PARM : H_SUCCESS;
 }
 
-#define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->dma, (_addr), (_val)))
-#define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->dma, (_addr), (_val)))
-#define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->dma, (_addr), (_val)))
-#define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->dma, (_addr), (_val)))
-#define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->dma, (_addr)))
+#define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val)))
+#define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val)))
+#define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val)))
+#define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val)))
+#define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr)))
 
 int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq);