[src/trunk]: src/sys/external/bsd/drm2/include/linux Start xarray stubs.

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/eeb60f5fe7c7
branches:  trunk
changeset: 1028311:eeb60f5fe7c7
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Dec 19 10:36:40 2021 +0000

description:
Start xarray stubs.

diffstat:

 sys/external/bsd/drm2/include/linux/pagevec.h |  34 ++++++++++++++++
 sys/external/bsd/drm2/include/linux/xarray.h  |  56 +++++++++++++++++++++++++-
 2 files changed, 87 insertions(+), 3 deletions(-)

diffs (106 lines):

diff -r a0bcb9e0c040 -r eeb60f5fe7c7 sys/external/bsd/drm2/include/linux/pagevec.h
--- a/sys/external/bsd/drm2/include/linux/pagevec.h     Sun Dec 19 10:36:32 2021 +0000
+++ b/sys/external/bsd/drm2/include/linux/pagevec.h     Sun Dec 19 10:36:40 2021 +0000
@@ -0,0 +1,34 @@
+/*     $NetBSD: pagevec.h,v 1.2 2021/12/19 10:36:40 riastradh Exp $    */
+
+/*-
+ * Copyright (c) 2020 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef        _LINUX_PAGEVEC_H_
+#define        _LINUX_PAGEVEC_H_
+
+#include <linux/xarray.h>
+
+#endif /* _LINUX_PAGEVEC_H_ */
diff -r a0bcb9e0c040 -r eeb60f5fe7c7 sys/external/bsd/drm2/include/linux/xarray.h
--- a/sys/external/bsd/drm2/include/linux/xarray.h      Sun Dec 19 10:36:32 2021 +0000
+++ b/sys/external/bsd/drm2/include/linux/xarray.h      Sun Dec 19 10:36:40 2021 +0000
@@ -1,11 +1,61 @@
-// SPDX-License-Identifier: MIT
-/*
- * Copyright © 2020 The NetBSD Foundation, Inc.
+/*     $NetBSD: xarray.h,v 1.3 2021/12/19 10:36:40 riastradh Exp $     */
+
+/*-
+ * Copyright (c) 2020 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef        _LINUX_XARRAY_H_
 #define        _LINUX_XARRAY_H_
 
+#include <linux/slab.h>
+
 struct xarray;
+struct xa_limit;
+
+struct xa_limit {
+       uint32_t        max;
+       uint32_t        min;
+};
+
+#define        xa_for_each(XA, INDEX, ENTRY)                                         \
+       for ((INDEX) = 0, (ENTRY) = xa_find((XA), &(INDEX), ULONG_MAX, 0);    \
+               (ENTRY) != NULL;                                              \
+               (ENTRY) = xa_find_after((XA), &(INDEX), ULONG_MAX, 0))
+
+#define        xa_alloc        linux_xa_alloc
+#define        xa_find         linux_xa_find
+#define        xa_find_after   linux_xa_find_after
+#define        xa_store        linux_xa_store
+#define        xa_limit_32b    linux_xa_limit_32b
+
+int    xa_alloc(struct xarray *, uint32_t *, void *, struct xa_limit, gfp_t);
+void * xa_find(struct xarray *, unsigned long *, unsigned long, unsigned);
+void * xa_find_after(struct xarray *, unsigned long *, unsigned long,
+           unsigned);
+void   xa_store(struct xarray *, unsigned long, void *, gfp_t);
+
+extern const struct xa_limit xa_limit_32b;
 
 #endif /* _LINUX_XARRAY_H_ */