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-rw-r--r--arch/parisc/include/asm/dwarf.h23
-rw-r--r--arch/parisc/include/asm/linkage.h12
-rw-r--r--arch/parisc/include/asm/pgtable.h6
-rw-r--r--arch/parisc/include/asm/traps.h1
-rw-r--r--arch/parisc/include/asm/uaccess.h48
5 files changed, 73 insertions, 17 deletions
diff --git a/arch/parisc/include/asm/dwarf.h b/arch/parisc/include/asm/dwarf.h
new file mode 100644
index 000000000000..8fe7d6b2cc42
--- /dev/null
+++ b/arch/parisc/include/asm/dwarf.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2016 Helge Deller <deller@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_PARISC_DWARF_H
+#define _ASM_PARISC_DWARF_H
+
+#ifdef __ASSEMBLY__
+
+#define CFI_STARTPROC .cfi_startproc
+#define CFI_ENDPROC .cfi_endproc
+#define CFI_DEF_CFA .cfi_def_cfa
+#define CFI_REGISTER .cfi_register
+#define CFI_REL_OFFSET .cfi_rel_offset
+#define CFI_UNDEFINED .cfi_undefined
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_PARISC_DWARF_H */
diff --git a/arch/parisc/include/asm/linkage.h b/arch/parisc/include/asm/linkage.h
index 0b19a7242d0c..67e6b433d399 100644
--- a/arch/parisc/include/asm/linkage.h
+++ b/arch/parisc/include/asm/linkage.h
@@ -1,6 +1,8 @@
#ifndef __ASM_PARISC_LINKAGE_H
#define __ASM_PARISC_LINKAGE_H
+#include <asm/dwarf.h>
+
#ifndef __ALIGN
#define __ALIGN .align 4
#define __ALIGN_STR ".align 4"
@@ -10,6 +12,8 @@
* In parisc assembly a semicolon marks a comment while a
* exclamation mark is used to separate independent lines.
*/
+#define ASM_NL !
+
#ifdef __ASSEMBLY__
#define ENTRY(name) \
@@ -26,6 +30,14 @@ name:
END(name)
#endif
+#define ENTRY_CFI(name) \
+ ENTRY(name) ASM_NL\
+ CFI_STARTPROC
+
+#define ENDPROC_CFI(name) \
+ ENDPROC(name) ASM_NL\
+ CFI_ENDPROC
+
#endif /* __ASSEMBLY__ */
#endif /* __ASM_PARISC_LINKAGE_H */
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 291cee28ccb6..c2c43f714684 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -83,10 +83,10 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, (unsigned long)pgd_val(e))
/* This is the size of the initially mapped kernel memory */
-#ifdef CONFIG_64BIT
-#define KERNEL_INITIAL_ORDER 25 /* 1<<25 = 32MB */
+#if defined(CONFIG_64BIT)
+#define KERNEL_INITIAL_ORDER 26 /* 1<<26 = 64MB */
#else
-#define KERNEL_INITIAL_ORDER 24 /* 1<<24 = 16MB */
+#define KERNEL_INITIAL_ORDER 25 /* 1<<25 = 32MB */
#endif
#define KERNEL_INITIAL_SIZE (1 << KERNEL_INITIAL_ORDER)
diff --git a/arch/parisc/include/asm/traps.h b/arch/parisc/include/asm/traps.h
index 5e953ab4530d..63670231f48a 100644
--- a/arch/parisc/include/asm/traps.h
+++ b/arch/parisc/include/asm/traps.h
@@ -11,6 +11,7 @@ void parisc_terminate(char *msg, struct pt_regs *regs,
void die_if_kernel(char *str, struct pt_regs *regs, long err);
/* mm/fault.c */
+const char *trap_name(unsigned long code);
void do_page_fault(struct pt_regs *regs, unsigned long code,
unsigned long address);
#endif
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 482847865dac..9a2aee1b90fc 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -11,6 +11,7 @@
#include <linux/bug.h>
#include <linux/string.h>
+#include <linux/thread_info.h>
#define VERIFY_READ 0
#define VERIFY_WRITE 1
@@ -201,10 +202,12 @@ extern long lstrnlen_user(const char __user *, long);
#define clear_user lclear_user
#define __clear_user lclear_user
-unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len);
-#define __copy_to_user copy_to_user
-unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long len);
-unsigned long copy_in_user(void __user *dst, const void __user *src, unsigned long len);
+unsigned long __must_check __copy_to_user(void __user *dst, const void *src,
+ unsigned long len);
+unsigned long __must_check __copy_from_user(void *dst, const void __user *src,
+ unsigned long len);
+unsigned long copy_in_user(void __user *dst, const void __user *src,
+ unsigned long len);
#define __copy_in_user copy_in_user
#define __copy_to_user_inatomic __copy_to_user
#define __copy_from_user_inatomic __copy_from_user
@@ -217,23 +220,40 @@ static inline void copy_user_overflow(int size, unsigned long count)
WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
}
-static inline unsigned long __must_check copy_from_user(void *to,
- const void __user *from,
- unsigned long n)
+static __always_inline unsigned long __must_check
+copy_from_user(void *to, const void __user *from, unsigned long n)
{
- int sz = __compiletime_object_size(to);
- unsigned long ret = n;
+ int sz = __compiletime_object_size(to);
+ unsigned long ret = n;
- if (likely(sz == -1 || sz >= n))
- ret = __copy_from_user(to, from, n);
- else if (!__builtin_constant_p(n))
+ if (likely(sz < 0 || sz >= n)) {
+ check_object_size(to, n, false);
+ ret = __copy_from_user(to, from, n);
+ } else if (!__builtin_constant_p(n))
copy_user_overflow(sz, n);
else
- __bad_copy_user();
+ __bad_copy_user();
if (unlikely(ret))
memset(to + (n - ret), 0, ret);
- return ret;
+
+ return ret;
+}
+
+static __always_inline unsigned long __must_check
+copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+ int sz = __compiletime_object_size(from);
+
+ if (likely(sz < 0 || sz >= n)) {
+ check_object_size(from, n, true);
+ n = __copy_to_user(to, from, n);
+ } else if (!__builtin_constant_p(n))
+ copy_user_overflow(sz, n);
+ else
+ __bad_copy_user();
+
+ return n;
}
struct pt_regs;