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-rw-r--r--arch/tile/include/hv/syscall_public.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/tile/include/hv/syscall_public.h b/arch/tile/include/hv/syscall_public.h
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+/*
+ * Copyright 2010 Tilera Corporation. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for
+ * more details.
+ */
+
+/**
+ * @file syscall.h
+ * Indices for the hypervisor system calls that are intended to be called
+ * directly, rather than only through hypervisor-generated "glue" code.
+ */
+
+#ifndef _SYS_HV_INCLUDE_SYSCALL_PUBLIC_H
+#define _SYS_HV_INCLUDE_SYSCALL_PUBLIC_H
+
+/** Fast syscall flag bit location. When this bit is set, the hypervisor
+ * handles the syscall specially.
+ */
+#define HV_SYS_FAST_SHIFT 14
+
+/** Fast syscall flag bit mask. */
+#define HV_SYS_FAST_MASK (1 << HV_SYS_FAST_SHIFT)
+
+/** Bit location for flagging fast syscalls that can be called from PL0. */
+#define HV_SYS_FAST_PLO_SHIFT 13
+
+/** Fast syscall allowing PL0 bit mask. */
+#define HV_SYS_FAST_PL0_MASK (1 << HV_SYS_FAST_PLO_SHIFT)
+
+/** Perform an MF that waits for all victims to reach DRAM. */
+#define HV_SYS_fence_incoherent (51 | HV_SYS_FAST_MASK \
+ | HV_SYS_FAST_PL0_MASK)
+
+#endif /* !_SYS_HV_INCLUDE_SYSCALL_PUBLIC_H */