Author: marcel
Date: Fri Jul 3 05:44:58 2015
New Revision: 285074
URL: https://svnweb.freebsd.org/changeset/base/285074
Log:
Implement unload and sync operations.
Modified:
head/sys/dev/proto/proto_busdma.c
head/sys/dev/proto/proto_dev.h
Modified: head/sys/dev/proto/proto_busdma.c
==============================================================================
--- head/sys/dev/proto/proto_busdma.c Fri Jul 3 03:34:21 2015
(r285073)
+++ head/sys/dev/proto/proto_busdma.c Fri Jul 3 05:44:58 2015
(r285074)
@@ -306,6 +306,28 @@ proto_busdma_md_load(struct proto_busdma
return (0);
}
+static int
+proto_busdma_md_unload(struct proto_busdma *busdma, struct proto_md *md)
+{
+
+ if (!md->physaddr)
+ return (ENXIO);
+ bus_dmamap_unload(md->bd_tag, md->bd_map);
+ md->physaddr = 0;
+ return (0);
+}
+
+static int
+proto_busdma_sync(struct proto_busdma *busdma, struct proto_md *md,
+ struct proto_ioc_busdma *ioc)
+{
+
+ if (!md->physaddr)
+ return (ENXIO);
+ bus_dmamap_sync(md->bd_tag, md->bd_map, ioc->u.sync.op);
+ return (0);
+}
+
static struct proto_md *
proto_busdma_md_lookup(struct proto_busdma *busdma, u_long key)
{
@@ -419,6 +441,22 @@ proto_busdma_ioctl(struct proto_softc *s
}
error = proto_busdma_md_load(busdma, md, ioc, td);
break;
+ case PROTO_IOC_BUSDMA_MD_UNLOAD:
+ md = proto_busdma_md_lookup(busdma, ioc->key);
+ if (md == NULL) {
+ error = EINVAL;
+ break;
+ }
+ error = proto_busdma_md_unload(busdma, md);
+ break;
+ case PROTO_IOC_BUSDMA_SYNC:
+ md = proto_busdma_md_lookup(busdma, ioc->key);
+ if (md == NULL) {
+ error = EINVAL;
+ break;
+ }
+ error = proto_busdma_sync(busdma, md, ioc);
+ break;
default:
error = EINVAL;
break;
Modified: head/sys/dev/proto/proto_dev.h
==============================================================================
--- head/sys/dev/proto/proto_dev.h Fri Jul 3 03:34:21 2015
(r285073)
+++ head/sys/dev/proto/proto_dev.h Fri Jul 3 05:44:58 2015
(r285074)
@@ -50,6 +50,8 @@ struct proto_ioc_busdma {
#define PROTO_IOC_BUSDMA_MD_CREATE 20
#define PROTO_IOC_BUSDMA_MD_DESTROY 21
#define PROTO_IOC_BUSDMA_MD_LOAD 22
+#define PROTO_IOC_BUSDMA_MD_UNLOAD 29
+#define PROTO_IOC_BUSDMA_SYNC 30
unsigned long key;
union {
struct {
@@ -72,6 +74,11 @@ struct proto_ioc_busdma {
unsigned long bus_addr;
unsigned int bus_nsegs;
} md;
+ struct {
+ unsigned int op;
+ unsigned long base;
+ unsigned long size;
+ } sync;
} u;
unsigned long result;
};
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