3 files changed, 40 insertions, 1 deletions
diff --git a/arch/mips/include/asm/ftrace.h b/arch/mips/include/asm/ftrace.h
index dc025888f6d2..b41fc1044668 100644
--- a/arch/mips/include/asm/ftrace.h
+++ b/arch/mips/include/asm/ftrace.h
@@ -91,4 +91,20 @@ void prepare_ftrace_return(unsigned long *parent_ra_addr, unsigned long self_ra,
 
 #endif /* __ASSEMBLY__ */
 #endif /* CONFIG_FUNCTION_TRACER */
+
+#ifdef CONFIG_FTRACE_SYSCALLS
+#ifndef __ASSEMBLY__
+/*
+ * Some syscall entry functions on mips start with "__sys_" (fork and clone,
+ * for instance). We should also match the sys_ variant with those.
+ */
+#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
+static inline bool arch_syscall_match_sym_name(const char *sym,
+					       const char *name)
+{
+	return !strcmp(sym, name) ||
+		(!strncmp(sym, "__sys_", 6) && !strcmp(sym + 6, name + 4));
+}
+#endif /* __ASSEMBLY__ */
+#endif /* CONFIG_FTRACE_SYSCALLS */
 #endif /* _ASM_MIPS_FTRACE_H */
diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h
index 1e782275850a..9fb50827090a 100644
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -59,6 +59,16 @@ extern phys_addr_t mips_cm_l2sync_phys_base(void);
  */
 extern int mips_cm_is64;
 
+/*
+ * mips_cm_is_l2_hci_broken  - determine if HCI is broken
+ *
+ * Some CM reports show that Hardware Cache Initialization is
+ * complete, but in reality it's not the case. They also incorrectly
+ * indicate that Hardware Cache Initialization is supported. This
+ * flags allows warning about this broken feature.
+ */
+extern bool mips_cm_is_l2_hci_broken;
+
 /**
  * mips_cm_error_report - Report CM cache errors
  */
@@ -98,6 +108,18 @@ static inline bool mips_cm_present(void)
 }
 
 /**
+ * mips_cm_update_property - update property from the device tree
+ *
+ * Retrieve the properties from the device tree if a CM node exist and
+ * update the internal variable based on this.
+ */
+#ifdef CONFIG_MIPS_CM
+extern void mips_cm_update_property(void);
+#else
+static inline void mips_cm_update_property(void) {}
+#endif
+
+/**
  * mips_cm_has_l2sync - determine whether an L2-only sync region is present
  *
  * Returns true if the system implements an L2-only sync region, else false.
diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
index 4a2b40ce39e0..841612913f0d 100644
--- a/arch/mips/include/asm/ptrace.h
+++ b/arch/mips/include/asm/ptrace.h
@@ -65,7 +65,8 @@ static inline void instruction_pointer_set(struct pt_regs *regs,
 
 /* Query offset/name of register from its name/offset */
 extern int regs_query_register_offset(const char *name);
-#define MAX_REG_OFFSET (offsetof(struct pt_regs, __last))
+#define MAX_REG_OFFSET \
+	(offsetof(struct pt_regs, __last) - sizeof(unsigned long))
 
 /**
  * regs_get_register() - get register value from its offset