Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / tile / include / asm / kprobes.h

diff --git a/kernel/arch/tile/include/asm/kprobes.h b/kernel/arch/tile/include/asm/kprobes.h
new file mode 100644 (file)
index 0000000..d8f9a83
--- /dev/null
+++ b/kernel/arch/tile/include/asm/kprobes.h
@@ -0,0 +1,79 @@
+/*
+ * arch/tile/include/asm/kprobes.h
+ *
+ * Copyright 2012 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.
+ */
+
+#ifndef _ASM_TILE_KPROBES_H
+#define _ASM_TILE_KPROBES_H
+
+#include <linux/types.h>
+#include <linux/ptrace.h>
+#include <linux/percpu.h>
+
+#include <arch/opcode.h>
+
+#define __ARCH_WANT_KPROBES_INSN_SLOT
+#define MAX_INSN_SIZE                  2
+
+#define kretprobe_blacklist_size 0
+
+typedef tile_bundle_bits kprobe_opcode_t;
+
+#define flush_insn_slot(p)                                             \
+       flush_icache_range((unsigned long)p->addr,                      \
+                          (unsigned long)p->addr +                     \
+                          (MAX_INSN_SIZE * sizeof(kprobe_opcode_t)))
+
+struct kprobe;
+
+/* Architecture specific copy of original instruction. */
+struct arch_specific_insn {
+       kprobe_opcode_t *insn;
+};
+
+struct prev_kprobe {
+       struct kprobe *kp;
+       unsigned long status;
+       unsigned long saved_pc;
+};
+
+#define MAX_JPROBES_STACK_SIZE 128
+#define MAX_JPROBES_STACK_ADDR \
+       (((unsigned long)current_thread_info()) + THREAD_SIZE - 32 \
+               - sizeof(struct pt_regs))
+
+#define MIN_JPROBES_STACK_SIZE(ADDR)                                   \
+       ((((ADDR) + MAX_JPROBES_STACK_SIZE) > MAX_JPROBES_STACK_ADDR)   \
+               ? MAX_JPROBES_STACK_ADDR - (ADDR)                       \
+               : MAX_JPROBES_STACK_SIZE)
+
+/* per-cpu kprobe control block. */
+struct kprobe_ctlblk {
+       unsigned long kprobe_status;
+       unsigned long kprobe_saved_pc;
+       unsigned long jprobe_saved_sp;
+       struct prev_kprobe prev_kprobe;
+       struct pt_regs jprobe_saved_regs;
+       char jprobes_stack[MAX_JPROBES_STACK_SIZE];
+};
+
+extern tile_bundle_bits breakpoint2_insn;
+extern tile_bundle_bits breakpoint_insn;
+
+void arch_remove_kprobe(struct kprobe *);
+
+extern int kprobe_exceptions_notify(struct notifier_block *self,
+                            unsigned long val, void *data);
+
+#endif /* _ASM_TILE_KPROBES_H */