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authorriastradh <riastradh@NetBSD.org>2021-12-19 10:36:40 +0000
committerriastradh <riastradh@NetBSD.org>2021-12-19 10:36:40 +0000
commit728816f10dcee40eae1cce62462daaa799d6c709 (patch)
treebb1eb09819d198a72af173eecc1c602e0bc95cef /sys/external/bsd/drm2/include/linux/xarray.h
parentcc8f67c610c601a3d139ac3e82e913f2a1b8314a (diff)
Start xarray stubs.
Diffstat (limited to 'sys/external/bsd/drm2/include/linux/xarray.h')
-rw-r--r--sys/external/bsd/drm2/include/linux/xarray.h56
1 files changed, 53 insertions, 3 deletions
diff --git a/sys/external/bsd/drm2/include/linux/xarray.h b/sys/external/bsd/drm2/include/linux/xarray.h
index 30adb085ac3..80136916d8d 100644
--- a/sys/external/bsd/drm2/include/linux/xarray.h
+++ b/sys/external/bsd/drm2/include/linux/xarray.h
@@ -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_ */