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-rw-r--r--arch/alpha/include/asm/special_insns.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/special_insns.h b/arch/alpha/include/asm/special_insns.h
new file mode 100644
index 000000000..ca2c5c30b
--- /dev/null
+++ b/arch/alpha/include/asm/special_insns.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_SPECIAL_INSNS_H
+#define __ALPHA_SPECIAL_INSNS_H
+
+enum implver_enum {
+ IMPLVER_EV4,
+ IMPLVER_EV5,
+ IMPLVER_EV6
+};
+
+#ifdef CONFIG_ALPHA_GENERIC
+#define implver() \
+({ unsigned long __implver; \
+ __asm__ ("implver %0" : "=r"(__implver)); \
+ (enum implver_enum) __implver; })
+#else
+/* Try to eliminate some dead code. */
+#ifdef CONFIG_ALPHA_EV4
+#define implver() IMPLVER_EV4
+#endif
+#ifdef CONFIG_ALPHA_EV5
+#define implver() IMPLVER_EV5
+#endif
+#if defined(CONFIG_ALPHA_EV6)
+#define implver() IMPLVER_EV6
+#endif
+#endif
+
+enum amask_enum {
+ AMASK_BWX = (1UL << 0),
+ AMASK_FIX = (1UL << 1),
+ AMASK_CIX = (1UL << 2),
+ AMASK_MAX = (1UL << 8),
+ AMASK_PRECISE_TRAP = (1UL << 9),
+};
+
+#define amask(mask) \
+({ unsigned long __amask, __input = (mask); \
+ __asm__ ("amask %1,%0" : "=r"(__amask) : "rI"(__input)); \
+ __amask; })
+
+#endif /* __ALPHA_SPECIAL_INSNS_H */