Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 78 insertions, 0 deletions

diff --git a/arch/mips/include/asm/kprobes.h b/arch/mips/include/asm/kprobes.h
new file mode 100644
index 0000000000..68b1e5d458
--- /dev/null
+++ b/arch/mips/include/asm/kprobes.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *  Kernel Probes (KProbes)
+ *  include/asm-mips/kprobes.h
+ *
+ *  Copyright 2006 Sony Corp.
+ *  Copyright 2010 Cavium Networks
+ */
+
+#ifndef _ASM_KPROBES_H
+#define _ASM_KPROBES_H
+
+#include <asm-generic/kprobes.h>
+
+#ifdef CONFIG_KPROBES
+#include <linux/ptrace.h>
+#include <linux/types.h>
+
+#include <asm/cacheflush.h>
+#include <asm/kdebug.h>
+#include <asm/inst.h>
+
+#define	 __ARCH_WANT_KPROBES_INSN_SLOT
+
+struct kprobe;
+struct pt_regs;
+
+typedef union mips_instruction kprobe_opcode_t;
+
+#define MAX_INSN_SIZE 2
+
+#define flush_insn_slot(p)						\
+do {									\
+	if (p->addr)							\
+		flush_icache_range((unsigned long)p->addr,		\
+			   (unsigned long)p->addr +			\
+			   (MAX_INSN_SIZE * sizeof(kprobe_opcode_t)));	\
+} while (0)
+
+
+#define kretprobe_blacklist_size 0
+
+void arch_remove_kprobe(struct kprobe *p);
+int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
+
+/* Architecture specific copy of original instruction*/
+struct arch_specific_insn {
+	/* copy of the original instruction */
+	kprobe_opcode_t *insn;
+};
+
+struct prev_kprobe {
+	struct kprobe *kp;
+	unsigned long status;
+	unsigned long old_SR;
+	unsigned long saved_SR;
+	unsigned long saved_epc;
+};
+
+#define SKIP_DELAYSLOT 0x0001
+
+/* per-cpu kprobe control block */
+struct kprobe_ctlblk {
+	unsigned long kprobe_status;
+	unsigned long kprobe_old_SR;
+	unsigned long kprobe_saved_SR;
+	unsigned long kprobe_saved_epc;
+	/* Per-thread fields, used while emulating branches */
+	unsigned long flags;
+	unsigned long target_epc;
+	struct prev_kprobe prev_kprobe;
+};
+
+extern int kprobe_exceptions_notify(struct notifier_block *self,
+				    unsigned long val, void *data);
+
+#endif /* CONFIG_KPROBES */
+#endif /* _ASM_KPROBES_H */