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-rw-r--r--src/VBox/Additions/solaris/DRM/include/drm_atomic.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/src/VBox/Additions/solaris/DRM/include/drm_atomic.h b/src/VBox/Additions/solaris/DRM/include/drm_atomic.h
new file mode 100644
index 00000000..05401cc4
--- /dev/null
+++ b/src/VBox/Additions/solaris/DRM/include/drm_atomic.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright 2009-2010 Oracle Corporation
+ * All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * \file drm_atomic.h
+ * Atomic operations used in the DRM which may or may not be provided by the OS.
+ *
+ * \author Eric Anholt <anholt@FreeBSD.org>
+ */
+
+/*
+ * Copyright 2004 Eric Anholt
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/* Many of these implementations are rather fake, but good enough. */
+
+
+
+#ifndef _SYS_DRM_ATOMIC_H_
+#define _SYS_DRM_ATOMIC_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/atomic.h>
+
+#ifdef __LINT__
+#undef inline
+#define inline
+#endif
+typedef uint32_t atomic_t;
+
+#define atomic_set(p, v) (*(p) = (v))
+#define atomic_read(p) (*(p))
+#define atomic_inc(p) atomic_add_int(p, 1)
+#define atomic_dec(p) atomic_dec_uint(p)
+#define atomic_add(n, p) atomic_add_int(p, n)
+#define atomic_sub(n, p) atomic_dec_uint(p, n)
+#define atomic_set_int(p, bits) atomic_or_uint(p, bits)
+#define atomic_clear_int(p, bits) atomic_and_uint(p, ~(bits))
+#define atomic_cmpset_int(p, c, n) \
+ ((c == atomic_cas_uint(p, c, n)) ? 1 : 0)
+
+#define set_bit(b, p) \
+ atomic_set_int(((volatile uint_t *)(void *)p) + (b >> 5), \
+ 1 << (b & 0x1f))
+
+#define clear_bit(b, p) \
+ atomic_clear_int(((volatile uint_t *)(void *)p) + (b >> 5), \
+ 1 << (b & 0x1f))
+
+#define test_bit(b, p) \
+ (((volatile uint_t *)(void *)p)[b >> 5] & (1 << (b & 0x1f)))
+
+/*
+ * Note: this routine doesn't return old value. It return
+ * 0 when succeeds, or -1 when fails.
+ */
+#ifdef _LP64
+#define test_and_set_bit(b, p) \
+ atomic_set_long_excl(((ulong_t *)(void *)p) + (b >> 6), (b & 0x3f))
+#else
+#define test_and_set_bit(b, p) \
+ atomic_set_long_excl(((ulong_t *)(void *)p) + (b >> 5), (b & 0x1f))
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_DRM_ATOMIC_H_ */