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authorArnd Bergmann <arnd@arndb.de>2018-03-07 21:21:59 +0100
committerArnd Bergmann <arnd@arndb.de>2018-03-09 23:19:58 +0100
commitfd8773f9f544955f6f47dc2ac3ab85ad64376b7f (patch)
tree2eedaf10b5a4b62df0d3b514cec9614a6af6b563 /arch/frv/include/asm/uaccess.h
parentmn10300: Remove the architecture (diff)
downloadlinux-fd8773f9f544955f6f47dc2ac3ab85ad64376b7f.tar.xz
linux-fd8773f9f544955f6f47dc2ac3ab85ad64376b7f.zip
arch: remove frv port
The Fujitsu FRV kernel port has been around for a long time, but has not seen regular updates in several years and instead was marked 'Orphaned' in 2016 by long-time maintainer David Howells. The SoC product line apparently is apparently still around in the form of the Socionext Milbeaut image processor, but this one no longer uses the FRV CPU cores. This removes all FRV specific files from the kernel. Link: http://www.socionext.com/en/products/assp/milbeaut/ Cc: David Howells <dhowells@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/frv/include/asm/uaccess.h')
-rw-r--r--arch/frv/include/asm/uaccess.h285
1 files changed, 0 insertions, 285 deletions
diff --git a/arch/frv/include/asm/uaccess.h b/arch/frv/include/asm/uaccess.h
deleted file mode 100644
index ff9562dc6825..000000000000
--- a/arch/frv/include/asm/uaccess.h
+++ /dev/null
@@ -1,285 +0,0 @@
-/* uaccess.h: userspace accessor functions
- *
- * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * 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; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#ifndef _ASM_UACCESS_H
-#define _ASM_UACCESS_H
-
-/*
- * User space memory access functions
- */
-#include <linux/mm.h>
-#include <asm/segment.h>
-#include <asm/sections.h>
-#include <asm/extable.h>
-
-#define __ptr(x) ((unsigned long __force *)(x))
-
-/*
- * check that a range of addresses falls within the current address limit
- */
-static inline int ___range_ok(unsigned long addr, unsigned long size)
-{
-#ifdef CONFIG_MMU
- int flag = -EFAULT, tmp;
-
- asm volatile (
- " addcc %3,%2,%1,icc0 \n" /* set C-flag if addr+size>4GB */
- " subcc.p %1,%4,gr0,icc1 \n" /* jump if addr+size>limit */
- " bc icc0,#0,0f \n"
- " bhi icc1,#0,0f \n"
- " setlos #0,%0 \n" /* mark okay */
- "0: \n"
- : "=r"(flag), "=&r"(tmp)
- : "r"(addr), "r"(size), "r"(get_addr_limit()), "0"(flag)
- );
-
- return flag;
-
-#else
-
- if (addr < memory_start ||
- addr > memory_end ||
- size > memory_end - memory_start ||
- addr + size > memory_end)
- return -EFAULT;
-
- return 0;
-#endif
-}
-
-#define __range_ok(addr,size) ___range_ok((unsigned long) (addr), (unsigned long) (size))
-
-#define access_ok(type,addr,size) (__range_ok((void __user *)(addr), (size)) == 0)
-#define __access_ok(addr,size) (__range_ok((addr), (size)) == 0)
-
-
-/*
- * These are the main single-value transfer routines. They automatically
- * use the right size if we just have the right pointer type.
- */
-#define __put_user(x, ptr) \
-({ \
- int __pu_err = 0; \
- \
- typeof(*(ptr)) __pu_val = (x); \
- __chk_user_ptr(ptr); \
- \
- switch (sizeof (*(ptr))) { \
- case 1: \
- __put_user_asm(__pu_err, __pu_val, ptr, "b", "r"); \
- break; \
- case 2: \
- __put_user_asm(__pu_err, __pu_val, ptr, "h", "r"); \
- break; \
- case 4: \
- __put_user_asm(__pu_err, __pu_val, ptr, "", "r"); \
- break; \
- case 8: \
- __put_user_asm(__pu_err, __pu_val, ptr, "d", "e"); \
- break; \
- default: \
- __pu_err = __put_user_bad(); \
- break; \
- } \
- __pu_err; \
-})
-
-#define put_user(x, ptr) \
-({ \
- typeof(*(ptr)) __user *_p = (ptr); \
- int _e; \
- \
- _e = __range_ok(_p, sizeof(*_p)); \
- if (_e == 0) \
- _e = __put_user((x), _p); \
- _e; \
-})
-
-extern int __put_user_bad(void);
-
-/*
- * Tell gcc we read from memory instead of writing: this is because
- * we do not write to any memory gcc knows about, so there are no
- * aliasing issues.
- */
-
-#ifdef CONFIG_MMU
-
-#define __put_user_asm(err,x,ptr,dsize,constraint) \
-do { \
- asm volatile("1: st"dsize"%I1 %2,%M1 \n" \
- "2: \n" \
- ".subsection 2 \n" \
- "3: setlos %3,%0 \n" \
- " bra 2b \n" \
- ".previous \n" \
- ".section __ex_table,\"a\" \n" \
- " .balign 8 \n" \
- " .long 1b,3b \n" \
- ".previous" \
- : "=r" (err) \
- : "m" (*__ptr(ptr)), constraint (x), "i"(-EFAULT), "0"(err) \
- : "memory"); \
-} while (0)
-
-#else
-
-#define __put_user_asm(err,x,ptr,bwl,con) \
-do { \
- asm(" st"bwl"%I0 %1,%M0 \n" \
- " membar \n" \
- : \
- : "m" (*__ptr(ptr)), con (x) \
- : "memory"); \
-} while (0)
-
-#endif
-
-/*****************************************************************************/
-/*
- *
- */
-#define __get_user(x, ptr) \
-({ \
- int __gu_err = 0; \
- __chk_user_ptr(ptr); \
- \
- switch (sizeof(*(ptr))) { \
- case 1: { \
- unsigned char __gu_val; \
- __get_user_asm(__gu_err, __gu_val, ptr, "ub", "=r"); \
- (x) = *(__force __typeof__(*(ptr)) *) &__gu_val; \
- break; \
- } \
- case 2: { \
- unsigned short __gu_val; \
- __get_user_asm(__gu_err, __gu_val, ptr, "uh", "=r"); \
- (x) = *(__force __typeof__(*(ptr)) *) &__gu_val; \
- break; \
- } \
- case 4: { \
- unsigned int __gu_val; \
- __get_user_asm(__gu_err, __gu_val, ptr, "", "=r"); \
- (x) = *(__force __typeof__(*(ptr)) *) &__gu_val; \
- break; \
- } \
- case 8: { \
- unsigned long long __gu_val; \
- __get_user_asm(__gu_err, __gu_val, ptr, "d", "=e"); \
- (x) = *(__force __typeof__(*(ptr)) *) &__gu_val; \
- break; \
- } \
- default: \
- __gu_err = __get_user_bad(); \
- break; \
- } \
- __gu_err; \
-})
-
-#define get_user(x, ptr) \
-({ \
- const typeof(*(ptr)) __user *_p = (ptr);\
- int _e; \
- \
- _e = __range_ok(_p, sizeof(*_p)); \
- if (likely(_e == 0)) \
- _e = __get_user((x), _p); \
- else \
- (x) = (typeof(x)) 0; \
- _e; \
-})
-
-extern int __get_user_bad(void);
-
-#ifdef CONFIG_MMU
-
-#define __get_user_asm(err,x,ptr,dtype,constraint) \
-do { \
- asm("1: ld"dtype"%I2 %M2,%1 \n" \
- "2: \n" \
- ".subsection 2 \n" \
- "3: setlos %3,%0 \n" \
- " setlos #0,%1 \n" \
- " bra 2b \n" \
- ".previous \n" \
- ".section __ex_table,\"a\" \n" \
- " .balign 8 \n" \
- " .long 1b,3b \n" \
- ".previous" \
- : "=r" (err), constraint (x) \
- : "m" (*__ptr(ptr)), "i"(-EFAULT), "0"(err) \
- ); \
-} while(0)
-
-#else
-
-#define __get_user_asm(err,x,ptr,bwl,con) \
- asm(" ld"bwl"%I1 %M1,%0 \n" \
- " membar \n" \
- : con(x) \
- : "m" (*__ptr(ptr)))
-
-#endif
-
-/*****************************************************************************/
-/*
- *
- */
-
-#define ____force(x) (__force void *)(void __user *)(x)
-#ifdef CONFIG_MMU
-extern long __memset_user(void *dst, unsigned long count);
-extern long __memcpy_user(void *dst, const void *src, unsigned long count);
-
-#define __clear_user(dst,count) __memset_user(____force(dst), (count))
-
-#else
-
-#define __clear_user(dst,count) (memset(____force(dst), 0, (count)), 0)
-
-#endif
-
-static inline unsigned long
-raw_copy_from_user(void *to, const void __user *from, unsigned long n)
-{
-#ifdef CONFIG_MMU
- return __memcpy_user(to, (__force const void *)from, n);
-#else
- memcpy(to, (__force const void *)from, n);
- return 0;
-#endif
-}
-
-static inline unsigned long
-raw_copy_to_user(void __user *to, const void *from, unsigned long n)
-{
-#ifdef CONFIG_MMU
- return __memcpy_user((__force void *)to, from, n);
-#else
- memcpy((__force void *)to, from, n);
- return 0;
-#endif
-}
-#define INLINE_COPY_TO_USER
-#define INLINE_COPY_FROM_USER
-
-static inline unsigned long __must_check
-clear_user(void __user *to, unsigned long n)
-{
- if (likely(__access_ok(to, n)))
- n = __clear_user(to, n);
- return n;
-}
-
-extern long strncpy_from_user(char *dst, const char __user *src, long count);
-extern long strnlen_user(const char __user *src, long count);
-
-#endif /* _ASM_UACCESS_H */