Author: adrian
Date: Sat Sep 6 22:38:32 2014
New Revision: 271213
URL: http://svnweb.freebsd.org/changeset/base/271213
Log:
Implement local sfbuf_map and sfbuf_unmap for MIPS32.
The pre-rework behaviour was not to keep the cached mappings around after
the sfbuf was used but instead to recycle said mappings.
PR: kern/193400
Modified:
head/sys/mips/include/sf_buf.h
head/sys/mips/include/vmparam.h
Modified: head/sys/mips/include/sf_buf.h
==============================================================================
--- head/sys/mips/include/sf_buf.h Sat Sep 6 22:37:47 2014
(r271212)
+++ head/sys/mips/include/sf_buf.h Sat Sep 6 22:38:32 2014
(r271213)
@@ -48,4 +48,23 @@ sf_buf_page(struct sf_buf *sf)
}
#endif /* __mips_n64 */
+
+#ifndef __mips_n64 /* in 32 bit mode we manage our own mappings */
+
+static inline void
+sf_buf_map(struct sf_buf *sf, int flags)
+{
+
+ pmap_qenter(sf->kva, &sf->m, 1);
+}
+
+static inline int
+sf_buf_unmap(struct sf_buf *sf)
+{
+ pmap_qremove(sf->kva, 1);
+ return (1);
+}
+
+#endif /* ! __mips_n64 */
+
#endif /* !_MACHINE_SF_BUF_H_ */
Modified: head/sys/mips/include/vmparam.h
==============================================================================
--- head/sys/mips/include/vmparam.h Sat Sep 6 22:37:47 2014
(r271212)
+++ head/sys/mips/include/vmparam.h Sat Sep 6 22:38:32 2014
(r271213)
@@ -189,6 +189,7 @@
#ifndef __mips_n64
#define SFBUF
+#define SFBUF_MAP
#endif
#endif /* !_MACHINE_VMPARAM_H_ */
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