1 files changed, 84 insertions, 0 deletions
diff --git a/usr/src/uts/intel/sys/pmem.h b/usr/src/uts/intel/sys/pmem.h
new file mode 100644
index 0000000000..068ea349b2
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+++ b/usr/src/uts/intel/sys/pmem.h
@@ -0,0 +1,84 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef	_SYS_PMEM_H
+#define	_SYS_PMEM_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/*
+ * PMEM - Direct mapping physical memory pages to userland process
+ *
+ * Provide consolidation private functions used for directly (w/o occupying
+ * kernel virtual address space) allocating and exporting physical memory pages
+ * to userland.
+ */
+
+/*
+ * Flags to pass to pmem_alloc
+ */
+#define	PMEM_SLEEP	0x1
+#define	PMEM_NOSLEEP	0x2
+
+/*
+ * Called by driver devmap routine to pass physical memory mapping info to
+ * seg_dev framework, used only for physical memory allocated from
+ * devmap_pmem_alloc().
+ */
+int	devmap_pmem_setup(devmap_cookie_t, dev_info_t *dip,
+    struct devmap_callback_ctl *, devmap_pmem_cookie_t, offset_t,
+    size_t, uint_t, uint_t, ddi_device_acc_attr_t *);
+
+/*
+ * Replace existing mapping using a new cookie, mainly gets called when doing
+ * fork(). Should be called in pertinent devmap_dup(9E).
+ */
+int	devmap_pmem_remap(devmap_cookie_t, dev_info_t *dip,
+    devmap_pmem_cookie_t, offset_t, size_t, uint_t, uint_t,
+    ddi_device_acc_attr_t *);
+
+/*
+ * Directly (i.e., without occupying kernel virtual address space) allocate
+ * 'npages' physical memory pages for exporting to user land. The allocated
+ * page_t pointer will be recorded in cookie.
+ */
+int	devmap_pmem_alloc(size_t, uint_t, devmap_pmem_cookie_t *);
+
+void	devmap_pmem_free(devmap_pmem_cookie_t);
+
+int	devmap_pmem_getpfns(devmap_pmem_cookie_t, uint_t, pgcnt_t, pfn_t *);
+
+void    pmem_init();
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_PMEM_H */