28 files changed, 56 insertions, 45 deletions

diff --git a/sys/alpha/alpha/busdma_machdep.c b/sys/alpha/alpha/busdma_machdep.c
index 57c0dd829cf91..c52e071a146e6 100644
--- a/sys/alpha/alpha/busdma_machdep.c
+++ b/sys/alpha/alpha/busdma_machdep.c
@@ -769,7 +769,7 @@ _bus_dmamap_unload(bus_dma_tag_t dmat, bus_dmamap_t map)
 }
 
 void
-_bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, int op)
+_bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dmasync_op_t op)
 {
 	struct bounce_page *bpage;
 
diff --git a/sys/alpha/include/bus.h b/sys/alpha/include/bus.h
index 852648d7661b1..2d44ddf920c45 100644
--- a/sys/alpha/include/bus.h
+++ b/sys/alpha/include/bus.h
@@ -482,6 +482,7 @@ struct uio;
 /*
  *	Operations performed by bus_dmamap_sync().
  */
+typedef int bus_dmasync_op_t;
 #define	BUS_DMASYNC_PREREAD	1
 #define	BUS_DMASYNC_POSTREAD	2
 #define	BUS_DMASYNC_PREWRITE	4
@@ -615,7 +616,7 @@ int bus_dmamap_load_uio(bus_dma_tag_t dmat, bus_dmamap_t map,
 /*
  * Perform a syncronization operation on the given map.
  */
-void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, int);
+void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_dmasync_op_t);
 #define bus_dmamap_sync(dmat, dmamap, op) 		\
 	if ((dmamap) != NULL)				\
 		_bus_dmamap_sync(dmat, dmamap, op)
diff --git a/sys/amd64/amd64/busdma_machdep.c b/sys/amd64/amd64/busdma_machdep.c
index 47b8c426aaf4d..e2cd2d446a005 100644
--- a/sys/amd64/amd64/busdma_machdep.c
+++ b/sys/amd64/amd64/busdma_machdep.c
@@ -702,7 +702,7 @@ _bus_dmamap_unload(bus_dma_tag_t dmat, bus_dmamap_t map)
 }
 
 void
-_bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, int op)
+_bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dmasync_op_t op)
 {
 	struct bounce_page *bpage;
 
diff --git a/sys/amd64/include/bus_dma.h b/sys/amd64/include/bus_dma.h
index 67609d99b0bd6..a74a9425d0ac5 100644
--- a/sys/amd64/include/bus_dma.h
+++ b/sys/amd64/include/bus_dma.h
@@ -91,6 +91,7 @@ struct uio;
 /*
  * Operations performed by bus_dmamap_sync().
  */
+typedef int bus_dmasync_op_t;
 #define	BUS_DMASYNC_PREREAD	1
 #define	BUS_DMASYNC_POSTREAD	2
 #define	BUS_DMASYNC_PREWRITE	4
@@ -224,7 +225,7 @@ int bus_dmamap_load_uio(bus_dma_tag_t dmat, bus_dmamap_t map,
 /*
  * Perform a syncronization operation on the given map.
  */
-void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, int);
+void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_dmasync_op_t);
 #define bus_dmamap_sync(dmat, dmamap, op) 		\
 	if ((dmamap) != NULL)				\
 		_bus_dmamap_sync(dmat, dmamap, op)
diff --git a/sys/dev/advansys/advansys.c b/sys/dev/advansys/advansys.c
index ad12847dc261b..ed820aa7e1e6d 100644
--- a/sys/dev/advansys/advansys.c
+++ b/sys/dev/advansys/advansys.c
@@ -568,7 +568,7 @@ adv_execute_ccb(void *arg, bus_dma_segment_t *dm_segs,
 	scsiq.q2.vm_id = 0;
 
 	if (nsegments != 0) {
-		int op;
+		bus_dmasync_op_t op;
 
 		scsiq.q1.data_addr = dm_segs->ds_addr;
                 scsiq.q1.data_cnt = dm_segs->ds_len;
@@ -1130,7 +1130,7 @@ adv_done(struct adv_softc *adv, union ccb *ccb, u_int done_stat,
 	LIST_REMOVE(&ccb->ccb_h, sim_links.le);
 	untimeout(adv_timeout, ccb, ccb->ccb_h.timeout_ch);
 	if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-		int op;
+		bus_dmasync_op_t op;
 
 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 			op = BUS_DMASYNC_POSTREAD;
diff --git a/sys/dev/advansys/adwcam.c b/sys/dev/advansys/adwcam.c
index ac802867ffda1..4085f3bfa89d8 100644
--- a/sys/dev/advansys/adwcam.c
+++ b/sys/dev/advansys/adwcam.c
@@ -255,7 +255,7 @@ adwexecuteacb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
 	}
 		
 	if (nseg != 0) {
-		int op;
+		bus_dmasync_op_t op;
 
 		acb->queue.data_addr = dm_segs[0].ds_addr;
 		acb->queue.data_cnt = ccb->csio.dxfer_len;
@@ -1334,7 +1334,7 @@ adw_intr(void *arg)
 		ccb = acb->ccb;
 		untimeout(adwtimeout, acb, ccb->ccb_h.timeout_ch);
 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-			int op;
+			bus_dmasync_op_t op;
 
 			if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 				op = BUS_DMASYNC_POSTREAD;
diff --git a/sys/dev/aha/aha.c b/sys/dev/aha/aha.c
index 75cff3466f126..7fe6f25b56af5 100644
--- a/sys/dev/aha/aha.c
+++ b/sys/dev/aha/aha.c
@@ -1115,7 +1115,7 @@ ahaexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
 	if (nseg != 0) {
 		aha_sg_t *sg;
 		bus_dma_segment_t *end_seg;
-		int op;
+		bus_dmasync_op_t op;
 
 		end_seg = dm_segs + nseg;
 
@@ -1254,7 +1254,7 @@ ahadone(struct aha_softc *aha, struct aha_ccb *accb, aha_mbi_comp_code_t comp_co
 	}
 
 	if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-		int op;
+		bus_dmasync_op_t op;
 
 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 			op = BUS_DMASYNC_POSTREAD;
diff --git a/sys/dev/ahb/ahb.c b/sys/dev/ahb/ahb.c
index a60097ffe73c6..e6d715bfce266 100644
--- a/sys/dev/ahb/ahb.c
+++ b/sys/dev/ahb/ahb.c
@@ -788,7 +788,7 @@ ahbdone(struct ahb_softc *ahb, u_int32_t mbox, u_int intstat)
 		LIST_REMOVE(&ccb->ccb_h, sim_links.le);
 
 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-			int op;
+			bus_dmasync_op_t op;
 
 			if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 				op = BUS_DMASYNC_POSTREAD;
@@ -912,7 +912,7 @@ ahbexecuteecb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
 	if (nseg != 0) {
 		ahb_sg_t *sg;
 		bus_dma_segment_t *end_seg;
-		int op;
+		bus_dmasync_op_t op;
 
 		end_seg = dm_segs + nseg;
 
diff --git a/sys/dev/aic7xxx/aic79xx_osm.c b/sys/dev/aic7xxx/aic79xx_osm.c
index c1650b31ec4b8..c2bb23b1f1979 100644
--- a/sys/dev/aic7xxx/aic79xx_osm.c
+++ b/sys/dev/aic7xxx/aic79xx_osm.c
@@ -215,7 +215,7 @@ ahd_done(struct ahd_softc *ahd, struct scb *scb)
 	untimeout(ahd_timeout, (caddr_t)scb, ccb->ccb_h.timeout_ch);
 
 	if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-		/*XXX bus_dmasync_op_t*/int op;
+		bus_dmasync_op_t op;
 
 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 			op = BUS_DMASYNC_POSTREAD;
@@ -1056,7 +1056,7 @@ ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
 	scb->sg_count = 0;
 	if (nsegments != 0) {
 		void *sg;
-		/*bus_dmasync_op_t*/int op;
+		bus_dmasync_op_t op;
 		u_int i;
 
 		/* Copy the segments into our SG list */
diff --git a/sys/dev/aic7xxx/aic7xxx_osm.c b/sys/dev/aic7xxx/aic7xxx_osm.c
index 2cdeb348d1c58..91af8ddbede8e 100644
--- a/sys/dev/aic7xxx/aic7xxx_osm.c
+++ b/sys/dev/aic7xxx/aic7xxx_osm.c
@@ -284,7 +284,7 @@ ahc_done(struct ahc_softc *ahc, struct scb *scb)
 	untimeout(ahc_timeout, (caddr_t)scb, ccb->ccb_h.timeout_ch);
 
 	if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-		/*XXX bus_dmasync_op_t*/int op;
+		bus_dmasync_op_t op;
 
 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 			op = BUS_DMASYNC_POSTREAD;
@@ -1107,7 +1107,7 @@ ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments,
 	if (nsegments != 0) {
 		struct	  ahc_dma_seg *sg;
 		bus_dma_segment_t *end_seg;
-		/*XXX bus_dmasync_op_t*/int op;
+		bus_dmasync_op_t op;
 
 		end_seg = dm_segs + nsegments;
 
diff --git a/sys/dev/amd/amd.c b/sys/dev/amd/amd.c
index e611acc4c44ff..ae8b8a8a57ea2 100644
--- a/sys/dev/amd/amd.c
+++ b/sys/dev/amd/amd.c
@@ -328,7 +328,7 @@ amdexecutesrb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
 	if (nseg != 0) {
 		struct amd_sg *sg;
 		bus_dma_segment_t *end_seg;
-		int op;
+		bus_dmasync_op_t op;
 
 		end_seg = dm_segs + nseg;
 
@@ -1888,7 +1888,7 @@ SRBdone(struct amd_softc *amd, struct amd_srb *pSRB)
 		  ("SRBdone - TagNumber %d\n", pSRB->TagNumber));
 
 	if ((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-		int op;
+		bus_dmasync_op_t op;
 
 		if ((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 			op = BUS_DMASYNC_POSTREAD;
diff --git a/sys/dev/buslogic/bt.c b/sys/dev/buslogic/bt.c
index d7eb21380a94d..cfcf2e66995f1 100644
--- a/sys/dev/buslogic/bt.c
+++ b/sys/dev/buslogic/bt.c
@@ -1471,7 +1471,7 @@ btexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
 	if (nseg != 0) {
 		bt_sg_t *sg;
 		bus_dma_segment_t *end_seg;
-		int op;
+		bus_dmasync_op_t op;
 
 		end_seg = dm_segs + nseg;
 
@@ -1608,7 +1608,7 @@ btdone(struct bt_softc *bt, struct bt_ccb *bccb, bt_mbi_comp_code_t comp_code)
 	}
 
 	if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-		int op;
+		bus_dmasync_op_t op;
 
 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 			op = BUS_DMASYNC_POSTREAD;
diff --git a/sys/dev/dpt/dpt_scsi.c b/sys/dev/dpt/dpt_scsi.c
index 2c75285b2ea0b..33420aa8bb268 100644
--- a/sys/dev/dpt/dpt_scsi.c
+++ b/sys/dev/dpt/dpt_scsi.c
@@ -746,7 +746,7 @@ dptexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
 	if (nseg != 0) {
 		dpt_sg_t *sg;
 		bus_dma_segment_t *end_seg;
-		int op;
+		bus_dmasync_op_t op;
 
 		end_seg = dm_segs + nseg;
 
@@ -1695,7 +1695,7 @@ dpt_intr(void *arg)
 		ccb = dccb->ccb;
 		untimeout(dpttimeout, dccb, ccb->ccb_h.timeout_ch);
 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-			int op;
+			bus_dmasync_op_t op;
 
 			if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 				op = BUS_DMASYNC_POSTREAD;
diff --git a/sys/dev/ida/ida.c b/sys/dev/ida/ida.c
index d45e74a1f20ab..c1417495d2064 100644
--- a/sys/dev/ida/ida.c
+++ b/sys/dev/ida/ida.c
@@ -324,7 +324,7 @@ ida_command(struct ida_softc *ida, int command, void *data, int datasize,
 {
 	struct ida_hardware_qcb *hwqcb;
 	struct ida_qcb *qcb;
-	int op;
+	bus_dmasync_op_t op;
 	int s, error;
 
 	s = splbio();
@@ -377,7 +377,7 @@ ida_construct_qcb(struct ida_softc *ida)
 {
 	struct ida_hardware_qcb *hwqcb;
 	struct ida_qcb *qcb;
-	int op;
+	bus_dmasync_op_t op;
 	struct bio *bp;
 
 	bp = bioq_first(&ida->bio_queue);
@@ -501,7 +501,7 @@ ida_done(struct ida_softc *ida, struct ida_qcb *qcb)
 	 * finish up command
 	 */
 	if (qcb->flags & DMA_DATA_TRANSFER) {
-		int op;
+		bus_dmasync_op_t op;
 
 		op = qcb->flags & DMA_DATA_IN ?
 		    BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE;
diff --git a/sys/dev/mpt/mpt_freebsd.c b/sys/dev/mpt/mpt_freebsd.c
index 63615749222bf..926ab3a2b56d4 100644
--- a/sys/dev/mpt/mpt_freebsd.c
+++ b/sys/dev/mpt/mpt_freebsd.c
@@ -224,7 +224,7 @@ mpt_execute_req(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
 	if (nseg > MPT_NSGL_FIRST(mpt)) {
 		int i, nleft = nseg;
 		u_int32_t flags;
-		int op;
+		bus_dmamap_sync_t op;
 		SGE_CHAIN32 *ce;
 
 		mpt_req->DataLength = ccb->csio.dxfer_len;
@@ -305,7 +305,7 @@ mpt_execute_req(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
 	} else if (nseg > 0) {
 		int i;
 		u_int32_t flags;
-		int op;
+		bus_dmamap_sync_t op;
 
 		mpt_req->DataLength = ccb->csio.dxfer_len;
 		flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
@@ -878,7 +878,7 @@ mpt_done(mpt_softc_t *mpt, u_int32_t reply)
 	untimeout(mpttimeout, ccb, ccb->ccb_h.timeout_ch);
 
 	if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-		int op;
+		bus_dmamap_sync_t op;
 
 		if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
 			op = BUS_DMASYNC_POSTREAD;
diff --git a/sys/dev/trm/trm.c b/sys/dev/trm/trm.c
index 058fcde15b613..3cb9e4f0ba000 100644
--- a/sys/dev/trm/trm.c
+++ b/sys/dev/trm/trm.c
@@ -2504,7 +2504,7 @@ trm_SRBdone(PACB pACB, PDCB pDCB, PSRB pSRB)
 	target_id  = pSRB->pccb->ccb_h.target_id;
 	target_lun = pSRB->pccb->ccb_h.target_lun;
 	if ((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
-		int op;
+		bus_dmasync_op_t op;
 		if ((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 			op = BUS_DMASYNC_POSTREAD;
 		else
diff --git a/sys/i386/i386/busdma_machdep.c b/sys/i386/i386/busdma_machdep.c
index 47b8c426aaf4d..e2cd2d446a005 100644
--- a/sys/i386/i386/busdma_machdep.c
+++ b/sys/i386/i386/busdma_machdep.c
@@ -702,7 +702,7 @@ _bus_dmamap_unload(bus_dma_tag_t dmat, bus_dmamap_t map)
 }
 
 void
-_bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, int op)
+_bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dmasync_op_t op)
 {
 	struct bounce_page *bpage;
 
diff --git a/sys/i386/include/bus_dma.h b/sys/i386/include/bus_dma.h
index f706677cccddb..2a10d0655d3f5 100644
--- a/sys/i386/include/bus_dma.h
+++ b/sys/i386/include/bus_dma.h
@@ -91,6 +91,7 @@ struct uio;
 /*
  * Operations performed by bus_dmamap_sync().
  */
+typedef int bus_dmasync_op_t;
 #define	BUS_DMASYNC_PREREAD	1
 #define	BUS_DMASYNC_POSTREAD	2
 #define	BUS_DMASYNC_PREWRITE	4
@@ -224,7 +225,7 @@ int bus_dmamap_load_uio(bus_dma_tag_t dmat, bus_dmamap_t map,
 /*
  * Perform a syncronization operation on the given map.
  */
-void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, int);
+void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_dmasync_op_t);
 #define bus_dmamap_sync(dmat, dmamap, op) 		\
 	if ((dmamap) != NULL)				\
 		_bus_dmamap_sync(dmat, dmamap, op)
diff --git a/sys/ia64/ia64/busdma_machdep.c b/sys/ia64/ia64/busdma_machdep.c
index 93ec7ba741fd1..33cece483e204 100644
--- a/sys/ia64/ia64/busdma_machdep.c
+++ b/sys/ia64/ia64/busdma_machdep.c
@@ -765,7 +765,7 @@ _bus_dmamap_unload(bus_dma_tag_t dmat, bus_dmamap_t map)
 }
 
 void
-_bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, int op)
+_bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dmasync_op_t op)
 {
 	struct bounce_page *bpage;
 
diff --git a/sys/ia64/include/bus.h b/sys/ia64/include/bus.h
index 5b24029dacc76..c060a4b1e67dc 100644
--- a/sys/ia64/include/bus.h
+++ b/sys/ia64/include/bus.h
@@ -864,6 +864,7 @@ struct uio;
 /*
  *	Operations performed by bus_dmamap_sync().
  */
+typedef int bus_dmasync_op_t;
 #define	BUS_DMASYNC_PREREAD	1
 #define	BUS_DMASYNC_POSTREAD	2
 #define	BUS_DMASYNC_PREWRITE	4
@@ -998,7 +999,7 @@ int bus_dmamap_load_uio(bus_dma_tag_t dmat, bus_dmamap_t map, struct uio *ui,
  */
 void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, int);
 static __inline void
-bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t dmamap, int op)
+bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t dmamap, bus_dmasync_op_t op)
 {
 	if ((dmamap) != NULL)
 		_bus_dmamap_sync(dmat, dmamap, op);
diff --git a/sys/powerpc/include/bus.h b/sys/powerpc/include/bus.h
index 153231f683b4a..eff6e8f3fce9e 100644
--- a/sys/powerpc/include/bus.h
+++ b/sys/powerpc/include/bus.h
@@ -756,6 +756,7 @@ struct uio;
 /*
  *      Operations performed by bus_dmamap_sync().
  */
+typedef int bus_dmasync_op_t;
 #define	BUS_DMASYNC_PREREAD	1
 #define	BUS_DMASYNC_POSTREAD	2
 #define	BUS_DMASYNC_PREWRITE	4
@@ -888,7 +889,7 @@ int bus_dmamap_load_uio(bus_dma_tag_t dmat, bus_dmamap_t map,
 /*
  * Perform a syncronization operation on the given map.
  */
-void bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, int);
+void bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_dmasync_op_t);
 
 /*
  * Release the mapping held by map.
diff --git a/sys/powerpc/powerpc/busdma_machdep.c b/sys/powerpc/powerpc/busdma_machdep.c
index 81ec2a90e7376..34c737ff84f5b 100644
--- a/sys/powerpc/powerpc/busdma_machdep.c
+++ b/sys/powerpc/powerpc/busdma_machdep.c
@@ -521,7 +521,7 @@ bus_dmamap_unload(bus_dma_tag_t dmat, bus_dmamap_t map)
 }
 
 void
-bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, int op)
+bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dmasync_op_t op)
 {
 
 	return;
diff --git a/sys/sparc64/include/bus.h b/sys/sparc64/include/bus.h
index c69c27052c070..39a048c08361f 100644
--- a/sys/sparc64/include/bus.h
+++ b/sys/sparc64/include/bus.h
@@ -905,6 +905,7 @@ memsetw(void *d, int val, size_t size)
 struct mbuf;
 struct uio;
 
+typedef int bus_dmasync_op_t;
 #define	BUS_DMASYNC_PREREAD	1
 #define	BUS_DMASYNC_POSTREAD	2
 #define	BUS_DMASYNC_PREWRITE	4
@@ -975,7 +976,7 @@ struct bus_dma_tag {
 	    bus_dmamap_t, struct uio *, bus_dmamap_callback2_t *, void *, int);
 	void	(*dt_dmamap_unload)(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t);
 	void	(*dt_dmamap_sync)(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t,
-	    int);
+	    bus_dmasync_op_t);
 
 	/*
 	 * DMA memory utility functions.
@@ -1080,7 +1081,8 @@ sparc64_dmamap_unload(bus_dma_tag_t pt, bus_dma_tag_t dt, bus_dmamap_t p)
 	sparc64_dmamap_unload((t), (t), (p))
 
 static __inline void
-sparc64_dmamap_sync(bus_dma_tag_t pt, bus_dma_tag_t dt, bus_dmamap_t m, int op)
+sparc64_dmamap_sync(bus_dma_tag_t pt, bus_dma_tag_t dt, bus_dmamap_t m,
+    bus_dmasync_op_t op)
 {
 	bus_dma_tag_t lt;
 
diff --git a/sys/sparc64/pci/psycho.c b/sys/sparc64/pci/psycho.c
index 5de26badb4ec1..4cd7fef94bb67 100644
--- a/sys/sparc64/pci/psycho.c
+++ b/sys/sparc64/pci/psycho.c
@@ -111,7 +111,8 @@ static int psycho_dmamap_load_mbuf(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t,
 static int psycho_dmamap_load_uio(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t,
     struct uio *, bus_dmamap_callback2_t *, void *, int);
 static void psycho_dmamap_unload(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t);
-static void psycho_dmamap_sync(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t, int);
+static void psycho_dmamap_sync(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t,
+    bus_dmasync_op_t);
 static int psycho_dmamem_alloc(bus_dma_tag_t, bus_dma_tag_t, void **, int,
     bus_dmamap_t *);
 static void psycho_dmamem_free(bus_dma_tag_t, bus_dma_tag_t, void *,
@@ -1402,7 +1403,7 @@ psycho_dmamap_unload(bus_dma_tag_t pdmat, bus_dma_tag_t ddmat, bus_dmamap_t map)
 
 static void
 psycho_dmamap_sync(bus_dma_tag_t pdmat, bus_dma_tag_t ddmat, bus_dmamap_t map,
-    int op)
+    bus_dmasync_op_t op)
 {
 	struct psycho_softc *sc;
 
diff --git a/sys/sparc64/sbus/sbus.c b/sys/sparc64/sbus/sbus.c
index 8debb26fe3182..dfd87088ec89a 100644
--- a/sys/sparc64/sbus/sbus.c
+++ b/sys/sparc64/sbus/sbus.c
@@ -242,7 +242,8 @@ static int sbus_dmamap_load_mbuf(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t,
 static int sbus_dmamap_load_uio(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t,
     struct uio *, bus_dmamap_callback2_t *, void *, int);
 static void sbus_dmamap_unload(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t);
-static void sbus_dmamap_sync(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t, int);
+static void sbus_dmamap_sync(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t,
+    bus_dmasync_op_t);
 static int sbus_dmamem_alloc(bus_dma_tag_t, bus_dma_tag_t, void **, int,
     bus_dmamap_t *);
 static void sbus_dmamem_free(bus_dma_tag_t, bus_dma_tag_t, void *,
@@ -979,7 +980,7 @@ sbus_dmamap_unload(bus_dma_tag_t pdmat, bus_dma_tag_t ddmat, bus_dmamap_t map)
 
 static void
 sbus_dmamap_sync(bus_dma_tag_t pdmat, bus_dma_tag_t ddmat, bus_dmamap_t map,
-    int op)
+    bus_dmasync_op_t op)
 {
 	struct sbus_softc *sc = (struct sbus_softc *)pdmat->dt_cookie;
 
diff --git a/sys/sparc64/sparc64/bus_machdep.c b/sys/sparc64/sparc64/bus_machdep.c
index e4eea402a55cf..d8e46eda8aaf6 100644
--- a/sys/sparc64/sparc64/bus_machdep.c
+++ b/sys/sparc64/sparc64/bus_machdep.c
@@ -169,7 +169,8 @@ static int nexus_dmamap_load_mbuf(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t,
 static int nexus_dmamap_load_uio(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t,
     struct uio *, bus_dmamap_callback2_t *, void *, int);
 static void nexus_dmamap_unload(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t);
-static void nexus_dmamap_sync(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t, int);
+static void nexus_dmamap_sync(bus_dma_tag_t, bus_dma_tag_t, bus_dmamap_t,
+    bus_dmasync_op_t);
 static int nexus_dmamem_alloc(bus_dma_tag_t, bus_dma_tag_t, void **, int,
     bus_dmamap_t *);
 static void nexus_dmamem_free(bus_dma_tag_t, bus_dma_tag_t, void *,
@@ -548,7 +549,7 @@ nexus_dmamap_unload(bus_dma_tag_t pdmat, bus_dma_tag_t ddmat, bus_dmamap_t map)
  */
 static void
 nexus_dmamap_sync(bus_dma_tag_t pdmat, bus_dma_tag_t ddmat, bus_dmamap_t map,
-    int op)
+    bus_dmasync_op_t op)
 {
 
 	/*
diff --git a/sys/sparc64/sparc64/iommu.c b/sys/sparc64/sparc64/iommu.c
index fc4c0a8a5fe6a..a18a987636f46 100644
--- a/sys/sparc64/sparc64/iommu.c
+++ b/sys/sparc64/sparc64/iommu.c
@@ -992,7 +992,7 @@ iommu_dvmamap_unload(bus_dma_tag_t pt, bus_dma_tag_t dt, struct iommu_state *is,
 
 void
 iommu_dvmamap_sync(bus_dma_tag_t pt, bus_dma_tag_t dt, struct iommu_state *is,
-    bus_dmamap_t map, int op)
+    bus_dmamap_t map, bus_dmasync_op_t op)
 {
 	struct bus_dmamap_res *r;
 	vm_offset_t va;
diff --git a/sys/sys/bus_dma.h b/sys/sys/bus_dma.h
index f706677cccddb..2a10d0655d3f5 100644
--- a/sys/sys/bus_dma.h
+++ b/sys/sys/bus_dma.h
@@ -91,6 +91,7 @@ struct uio;
 /*
  * Operations performed by bus_dmamap_sync().
  */
+typedef int bus_dmasync_op_t;
 #define	BUS_DMASYNC_PREREAD	1
 #define	BUS_DMASYNC_POSTREAD	2
 #define	BUS_DMASYNC_PREWRITE	4
@@ -224,7 +225,7 @@ int bus_dmamap_load_uio(bus_dma_tag_t dmat, bus_dmamap_t map,
 /*
  * Perform a syncronization operation on the given map.
  */
-void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, int);
+void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_dmasync_op_t);
 #define bus_dmamap_sync(dmat, dmamap, op) 		\
 	if ((dmamap) != NULL)				\
 		_bus_dmamap_sync(dmat, dmamap, op)