summaryrefslogtreecommitdiff
path: root/arch/unicore32
diff options
context:
space:
mode:
Diffstat (limited to 'arch/unicore32')
-rw-r--r--arch/unicore32/Kconfig1
-rw-r--r--arch/unicore32/include/asm/Kbuild1
-rw-r--r--arch/unicore32/include/asm/pgtable.h1
-rw-r--r--arch/unicore32/include/asm/uaccess.h15
-rw-r--r--arch/unicore32/kernel/ksyms.c4
-rw-r--r--arch/unicore32/kernel/process.c2
-rw-r--r--arch/unicore32/lib/copy_from_user.S16
-rw-r--r--arch/unicore32/lib/copy_to_user.S6
8 files changed, 20 insertions, 26 deletions
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 0769066929c6..319519eaed24 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -18,6 +18,7 @@ config UNICORE32
select ARCH_WANT_FRAME_POINTERS
select GENERIC_IOMAP
select MODULES_USE_ELF_REL
+ select ARCH_HAS_RAW_COPY_USER
help
UniCore-32 is 32-bit Instruction Set Architecture,
including a series of low-power-consumption RISC chip
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
index 84205fe1cd79..e9ad511c1043 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -10,6 +10,7 @@ generic-y += div64.h
generic-y += emergency-restart.h
generic-y += errno.h
generic-y += exec.h
+generic-y += extable.h
generic-y += fb.h
generic-y += fcntl.h
generic-y += ftrace.h
diff --git a/arch/unicore32/include/asm/pgtable.h b/arch/unicore32/include/asm/pgtable.h
index 818d0f5598e3..a4f2bef37e70 100644
--- a/arch/unicore32/include/asm/pgtable.h
+++ b/arch/unicore32/include/asm/pgtable.h
@@ -12,6 +12,7 @@
#ifndef __UNICORE_PGTABLE_H__
#define __UNICORE_PGTABLE_H__
+#define __ARCH_USE_5LEVEL_HACK
#include <asm-generic/pgtable-nopmd.h>
#include <asm/cpu-single.h>
diff --git a/arch/unicore32/include/asm/uaccess.h b/arch/unicore32/include/asm/uaccess.h
index 897e11ad8124..1d55f2f83759 100644
--- a/arch/unicore32/include/asm/uaccess.h
+++ b/arch/unicore32/include/asm/uaccess.h
@@ -12,35 +12,30 @@
#ifndef __UNICORE_UACCESS_H__
#define __UNICORE_UACCESS_H__
-#include <linux/thread_info.h>
-#include <linux/errno.h>
-
#include <asm/memory.h>
-#define __copy_from_user __copy_from_user
-#define __copy_to_user __copy_to_user
#define __strncpy_from_user __strncpy_from_user
#define __strnlen_user __strnlen_user
#define __clear_user __clear_user
-#define __kernel_ok (segment_eq(get_fs(), KERNEL_DS))
+#define __kernel_ok (uaccess_kernel())
#define __user_ok(addr, size) (((size) <= TASK_SIZE) \
&& ((addr) <= TASK_SIZE - (size)))
#define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size)))
extern unsigned long __must_check
-__copy_from_user(void *to, const void __user *from, unsigned long n);
+raw_copy_from_user(void *to, const void __user *from, unsigned long n);
extern unsigned long __must_check
-__copy_to_user(void __user *to, const void *from, unsigned long n);
+raw_copy_to_user(void __user *to, const void *from, unsigned long n);
extern unsigned long __must_check
__clear_user(void __user *addr, unsigned long n);
extern unsigned long __must_check
__strncpy_from_user(char *to, const char __user *from, unsigned long count);
extern unsigned long
__strnlen_user(const char __user *s, long n);
+#define INLINE_COPY_FROM_USER
+#define INLINE_COPY_TO_USER
#include <asm-generic/uaccess.h>
-extern int fixup_exception(struct pt_regs *regs);
-
#endif /* __UNICORE_UACCESS_H__ */
diff --git a/arch/unicore32/kernel/ksyms.c b/arch/unicore32/kernel/ksyms.c
index 0323528a80fd..dcc72ee1fcdb 100644
--- a/arch/unicore32/kernel/ksyms.c
+++ b/arch/unicore32/kernel/ksyms.c
@@ -46,8 +46,8 @@ EXPORT_SYMBOL(__strncpy_from_user);
EXPORT_SYMBOL(copy_page);
-EXPORT_SYMBOL(__copy_from_user);
-EXPORT_SYMBOL(__copy_to_user);
+EXPORT_SYMBOL(raw_copy_from_user);
+EXPORT_SYMBOL(raw_copy_to_user);
EXPORT_SYMBOL(__clear_user);
EXPORT_SYMBOL(__ashldi3);
diff --git a/arch/unicore32/kernel/process.c b/arch/unicore32/kernel/process.c
index d22c1dc7e39e..ddaf78ae6854 100644
--- a/arch/unicore32/kernel/process.c
+++ b/arch/unicore32/kernel/process.c
@@ -178,7 +178,7 @@ void __show_regs(struct pt_regs *regs)
buf, interrupts_enabled(regs) ? "n" : "ff",
fast_interrupts_enabled(regs) ? "n" : "ff",
processor_modes[processor_mode(regs)],
- segment_eq(get_fs(), get_ds()) ? "kernel" : "user");
+ uaccess_kernel() ? "kernel" : "user");
{
unsigned int ctrl;
diff --git a/arch/unicore32/lib/copy_from_user.S b/arch/unicore32/lib/copy_from_user.S
index ab0767ea5dbd..5f80fcbe8631 100644
--- a/arch/unicore32/lib/copy_from_user.S
+++ b/arch/unicore32/lib/copy_from_user.S
@@ -16,7 +16,7 @@
/*
* Prototype:
*
- * size_t __copy_from_user(void *to, const void *from, size_t n)
+ * size_t raw_copy_from_user(void *to, const void *from, size_t n)
*
* Purpose:
*
@@ -87,22 +87,18 @@
.text
-ENTRY(__copy_from_user)
+ENTRY(raw_copy_from_user)
#include "copy_template.S"
-ENDPROC(__copy_from_user)
+ENDPROC(raw_copy_from_user)
.pushsection .fixup,"ax"
.align 0
copy_abort_preamble
- ldm.w (r1, r2), [sp]+
- sub r3, r0, r1
- rsub r2, r3, r2
- stw r2, [sp]
- mov r1, #0
- b.l memset
- ldw.w r0, [sp]+, #4
+ ldm.w (r1, r2, r3), [sp]+
+ sub r0, r0, r1
+ rsub r0, r0, r2
copy_abort_end
.popsection
diff --git a/arch/unicore32/lib/copy_to_user.S b/arch/unicore32/lib/copy_to_user.S
index 6e22151c840d..857c6816ffe7 100644
--- a/arch/unicore32/lib/copy_to_user.S
+++ b/arch/unicore32/lib/copy_to_user.S
@@ -16,7 +16,7 @@
/*
* Prototype:
*
- * size_t __copy_to_user(void *to, const void *from, size_t n)
+ * size_t raw_copy_to_user(void *to, const void *from, size_t n)
*
* Purpose:
*
@@ -79,11 +79,11 @@
.text
-WEAK(__copy_to_user)
+WEAK(raw_copy_to_user)
#include "copy_template.S"
-ENDPROC(__copy_to_user)
+ENDPROC(raw_copy_to_user)
.pushsection .fixup,"ax"
.align 0