svn commit: r286176 - in head/tools/bus_space: . C Python
Marcel Moolenaar
marcel at FreeBSD.org
Sun Aug 2 01:09:32 UTC 2015
Author: marcel
Date: Sun Aug 2 01:09:30 2015
New Revision: 286176
URL: https://svnweb.freebsd.org/changeset/base/286176
Log:
Rename busdma_sync() to busdma_sync_range() and rename the
base and size parameters to ofs and len (resp). Add a new
busdma_sync() that makes the entire MD coherent.
Modified:
head/tools/bus_space/C/lang.c
head/tools/bus_space/C/libbus.h
head/tools/bus_space/Python/lang.c
head/tools/bus_space/busdma.c
head/tools/bus_space/busdma.h
Modified: head/tools/bus_space/C/lang.c
==============================================================================
--- head/tools/bus_space/C/lang.c Sun Aug 2 00:56:16 2015 (r286175)
+++ head/tools/bus_space/C/lang.c Sun Aug 2 01:09:30 2015 (r286176)
@@ -227,8 +227,15 @@ busdma_seg_get_size(busdma_seg_t seg)
}
int
-busdma_sync(busdma_md_t md, int op, bus_addr_t base, bus_size_t size)
+busdma_sync(busdma_md_t md, int op)
{
- return (bd_sync(md, op, base, size));
+ return (bd_sync(md, op, 0UL, ~0UL));
+}
+
+int
+busdma_sync_range(busdma_md_t md, int op, bus_size_t ofs, bus_size_t len)
+{
+
+ return (bd_sync(md, op, ofs, len));
}
Modified: head/tools/bus_space/C/libbus.h
==============================================================================
--- head/tools/bus_space/C/libbus.h Sun Aug 2 00:56:16 2015 (r286175)
+++ head/tools/bus_space/C/libbus.h Sun Aug 2 01:09:30 2015 (r286176)
@@ -78,6 +78,7 @@ bus_size_t busdma_seg_get_size(busdma_se
#define BUSDMA_SYNC_PREWRITE 4
#define BUSDMA_SYNC_POSTWRITE 8
-int busdma_sync(busdma_md_t md, int op, bus_addr_t, bus_size_t);
+int busdma_sync(busdma_md_t md, int op);
+int busdma_sync_range(busdma_md_t md, int op, bus_size_t, bus_size_t);
#endif /* _LIBBUS_SPACE_H_ */
Modified: head/tools/bus_space/Python/lang.c
==============================================================================
--- head/tools/bus_space/Python/lang.c Sun Aug 2 00:56:16 2015 (r286175)
+++ head/tools/bus_space/Python/lang.c Sun Aug 2 01:09:30 2015 (r286176)
@@ -384,12 +384,27 @@ busdma_seg_get_size(PyObject *self, PyOb
static PyObject *
busdma_sync(PyObject *self, PyObject *args)
{
- u_long base, size;
int error, mdid, op;
- if (!PyArg_ParseTuple(args, "iikk", &mdid, &op, &base, &size))
+ if (!PyArg_ParseTuple(args, "ii", &mdid, &op))
return (NULL);
- error = bd_sync(mdid, op, base, size);
+ error = bd_sync(mdid, op, 0UL, ~0UL);
+ if (error) {
+ PyErr_SetString(PyExc_IOError, strerror(error));
+ return (NULL);
+ }
+ Py_RETURN_NONE;
+}
+
+static PyObject *
+busdma_sync_range(PyObject *self, PyObject *args)
+{
+ u_long ofs, len;
+ int error, mdid, op;
+
+ if (!PyArg_ParseTuple(args, "iikk", &mdid, &op, &ofs, &len))
+ return (NULL);
+ error = bd_sync(mdid, op, ofs, len);
if (error) {
PyErr_SetString(PyExc_IOError, strerror(error));
return (NULL);
@@ -448,7 +463,9 @@ static PyMethodDef busdma_methods[] = {
"Return the size of the segment." },
{ "sync", busdma_sync, METH_VARARGS,
- "Keep memory/caches coherent WRT to DMA." },
+ "Make the entire memory descriptor coherent WRT to DMA." },
+ { "sync_range", busdma_sync_range, METH_VARARGS,
+ "Make part of the memory descriptor coherent WRT to DMA." },
{ NULL, NULL, 0, NULL }
};
Modified: head/tools/bus_space/busdma.c
==============================================================================
--- head/tools/bus_space/busdma.c Sun Aug 2 00:56:16 2015 (r286175)
+++ head/tools/bus_space/busdma.c Sun Aug 2 01:09:30 2015 (r286176)
@@ -536,7 +536,7 @@ bd_seg_get_size(int sid, u_long *size_p)
}
int
-bd_sync(int mdid, u_int op, u_long base, u_long size)
+bd_sync(int mdid, u_int op, u_long ofs, u_long len)
{
struct proto_ioc_busdma ioc;
struct obj *md;
@@ -549,8 +549,8 @@ bd_sync(int mdid, u_int op, u_long base,
ioc.request = PROTO_IOC_BUSDMA_SYNC;
ioc.key = md->key;
ioc.u.sync.op = op;
- ioc.u.sync.base = base;
- ioc.u.sync.size = size;
+ ioc.u.sync.base = ofs;
+ ioc.u.sync.size = len;
if (ioctl(md->fd, PROTO_IOC_BUSDMA, &ioc) == -1)
return (errno);
Modified: head/tools/bus_space/busdma.h
==============================================================================
--- head/tools/bus_space/busdma.h Sun Aug 2 00:56:16 2015 (r286175)
+++ head/tools/bus_space/busdma.h Sun Aug 2 01:09:30 2015 (r286176)
@@ -51,6 +51,6 @@ int bd_md_next_seg(int mdid, int sid);
int bd_seg_get_addr(int sid, u_long *);
int bd_seg_get_size(int sid, u_long *);
-int bd_sync(int mdid, u_int op, u_long base, u_long size);
+int bd_sync(int mdid, u_int op, u_long ofs, u_long len);
#endif /* _TOOLS_BUS_DMA_H_ */
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