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>

1 files changed, 0 insertions, 223 deletions

diff --git a/arch/frv/kernel/futex.c b/arch/frv/kernel/futex.c
deleted file mode 100644
index 37f7b2bf7f73..000000000000
--- a/arch/frv/kernel/futex.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/* futex.c: futex operations
- *
- * Copyright (C) 2005 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.
- */
-
-#include <linux/futex.h>
-#include <linux/uaccess.h>
-#include <asm/futex.h>
-#include <asm/errno.h>
-
-/*
- * the various futex operations; MMU fault checking is ignored under no-MMU
- * conditions
- */
-static inline int atomic_futex_op_xchg_set(int oparg, u32 __user *uaddr, int *_oldval)
-{
-	int oldval, ret;
-
-	asm("0:						\n"
-	    "	orcc		gr0,gr0,gr0,icc3	\n"	/* set ICC3.Z */
-	    "	ckeq		icc3,cc7		\n"
-	    "1:	ld.p		%M0,%1			\n"	/* LD.P/ORCR must be atomic */
-	    "	orcr		cc7,cc7,cc3		\n"	/* set CC3 to true */
-	    "2:	cst.p		%3,%M0		,cc3,#1	\n"
-	    "	corcc		gr29,gr29,gr0	,cc3,#1	\n"	/* clear ICC3.Z if store happens */
-	    "	beq		icc3,#0,0b		\n"
-	    "	setlos		0,%2			\n"
-	    "3:						\n"
-	    ".subsection 2				\n"
-	    "4:	setlos		%5,%2			\n"
-	    "	bra		3b			\n"
-	    ".previous					\n"
-	    ".section __ex_table,\"a\"			\n"
-	    "	.balign		8			\n"
-	    "	.long		1b,4b			\n"
-	    "	.long		2b,4b			\n"
-	    ".previous"
-	    : "+U"(*uaddr), "=&r"(oldval), "=&r"(ret), "=r"(oparg)
-	    : "3"(oparg), "i"(-EFAULT)
-	    : "memory", "cc7", "cc3", "icc3"
-	    );
-
-	*_oldval = oldval;
-	return ret;
-}
-
-static inline int atomic_futex_op_xchg_add(int oparg, u32 __user *uaddr, int *_oldval)
-{
-	int oldval, ret;
-
-	asm("0:						\n"
-	    "	orcc		gr0,gr0,gr0,icc3	\n"	/* set ICC3.Z */
-	    "	ckeq		icc3,cc7		\n"
-	    "1:	ld.p		%M0,%1			\n"	/* LD.P/ORCR must be atomic */
-	    "	orcr		cc7,cc7,cc3		\n"	/* set CC3 to true */
-	    "	add		%1,%3,%3		\n"
-	    "2:	cst.p		%3,%M0		,cc3,#1	\n"
-	    "	corcc		gr29,gr29,gr0	,cc3,#1	\n"	/* clear ICC3.Z if store happens */
-	    "	beq		icc3,#0,0b		\n"
-	    "	setlos		0,%2			\n"
-	    "3:						\n"
-	    ".subsection 2				\n"
-	    "4:	setlos		%5,%2			\n"
-	    "	bra		3b			\n"
-	    ".previous					\n"
-	    ".section __ex_table,\"a\"			\n"
-	    "	.balign		8			\n"
-	    "	.long		1b,4b			\n"
-	    "	.long		2b,4b			\n"
-	    ".previous"
-	    : "+U"(*uaddr), "=&r"(oldval), "=&r"(ret), "=r"(oparg)
-	    : "3"(oparg), "i"(-EFAULT)
-	    : "memory", "cc7", "cc3", "icc3"
-	    );
-
-	*_oldval = oldval;
-	return ret;
-}
-
-static inline int atomic_futex_op_xchg_or(int oparg, u32 __user *uaddr, int *_oldval)
-{
-	int oldval, ret;
-
-	asm("0:						\n"
-	    "	orcc		gr0,gr0,gr0,icc3	\n"	/* set ICC3.Z */
-	    "	ckeq		icc3,cc7		\n"
-	    "1:	ld.p		%M0,%1			\n"	/* LD.P/ORCR must be atomic */
-	    "	orcr		cc7,cc7,cc3		\n"	/* set CC3 to true */
-	    "	or		%1,%3,%3		\n"
-	    "2:	cst.p		%3,%M0		,cc3,#1	\n"
-	    "	corcc		gr29,gr29,gr0	,cc3,#1	\n"	/* clear ICC3.Z if store happens */
-	    "	beq		icc3,#0,0b		\n"
-	    "	setlos		0,%2			\n"
-	    "3:						\n"
-	    ".subsection 2				\n"
-	    "4:	setlos		%5,%2			\n"
-	    "	bra		3b			\n"
-	    ".previous					\n"
-	    ".section __ex_table,\"a\"			\n"
-	    "	.balign		8			\n"
-	    "	.long		1b,4b			\n"
-	    "	.long		2b,4b			\n"
-	    ".previous"
-	    : "+U"(*uaddr), "=&r"(oldval), "=&r"(ret), "=r"(oparg)
-	    : "3"(oparg), "i"(-EFAULT)
-	    : "memory", "cc7", "cc3", "icc3"
-	    );
-
-	*_oldval = oldval;
-	return ret;
-}
-
-static inline int atomic_futex_op_xchg_and(int oparg, u32 __user *uaddr, int *_oldval)
-{
-	int oldval, ret;
-
-	asm("0:						\n"
-	    "	orcc		gr0,gr0,gr0,icc3	\n"	/* set ICC3.Z */
-	    "	ckeq		icc3,cc7		\n"
-	    "1:	ld.p		%M0,%1			\n"	/* LD.P/ORCR must be atomic */
-	    "	orcr		cc7,cc7,cc3		\n"	/* set CC3 to true */
-	    "	and		%1,%3,%3		\n"
-	    "2:	cst.p		%3,%M0		,cc3,#1	\n"
-	    "	corcc		gr29,gr29,gr0	,cc3,#1	\n"	/* clear ICC3.Z if store happens */
-	    "	beq		icc3,#0,0b		\n"
-	    "	setlos		0,%2			\n"
-	    "3:						\n"
-	    ".subsection 2				\n"
-	    "4:	setlos		%5,%2			\n"
-	    "	bra		3b			\n"
-	    ".previous					\n"
-	    ".section __ex_table,\"a\"			\n"
-	    "	.balign		8			\n"
-	    "	.long		1b,4b			\n"
-	    "	.long		2b,4b			\n"
-	    ".previous"
-	    : "+U"(*uaddr), "=&r"(oldval), "=&r"(ret), "=r"(oparg)
-	    : "3"(oparg), "i"(-EFAULT)
-	    : "memory", "cc7", "cc3", "icc3"
-	    );
-
-	*_oldval = oldval;
-	return ret;
-}
-
-static inline int atomic_futex_op_xchg_xor(int oparg, u32 __user *uaddr, int *_oldval)
-{
-	int oldval, ret;
-
-	asm("0:						\n"
-	    "	orcc		gr0,gr0,gr0,icc3	\n"	/* set ICC3.Z */
-	    "	ckeq		icc3,cc7		\n"
-	    "1:	ld.p		%M0,%1			\n"	/* LD.P/ORCR must be atomic */
-	    "	orcr		cc7,cc7,cc3		\n"	/* set CC3 to true */
-	    "	xor		%1,%3,%3		\n"
-	    "2:	cst.p		%3,%M0		,cc3,#1	\n"
-	    "	corcc		gr29,gr29,gr0	,cc3,#1	\n"	/* clear ICC3.Z if store happens */
-	    "	beq		icc3,#0,0b		\n"
-	    "	setlos		0,%2			\n"
-	    "3:						\n"
-	    ".subsection 2				\n"
-	    "4:	setlos		%5,%2			\n"
-	    "	bra		3b			\n"
-	    ".previous					\n"
-	    ".section __ex_table,\"a\"			\n"
-	    "	.balign		8			\n"
-	    "	.long		1b,4b			\n"
-	    "	.long		2b,4b			\n"
-	    ".previous"
-	    : "+U"(*uaddr), "=&r"(oldval), "=&r"(ret), "=r"(oparg)
-	    : "3"(oparg), "i"(-EFAULT)
-	    : "memory", "cc7", "cc3", "icc3"
-	    );
-
-	*_oldval = oldval;
-	return ret;
-}
-
-/*****************************************************************************/
-/*
- * do the futex operations
- */
-int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr)
-{
-	int oldval = 0, ret;
-
-	pagefault_disable();
-
-	switch (op) {
-	case FUTEX_OP_SET:
-		ret = atomic_futex_op_xchg_set(oparg, uaddr, &oldval);
-		break;
-	case FUTEX_OP_ADD:
-		ret = atomic_futex_op_xchg_add(oparg, uaddr, &oldval);
-		break;
-	case FUTEX_OP_OR:
-		ret = atomic_futex_op_xchg_or(oparg, uaddr, &oldval);
-		break;
-	case FUTEX_OP_ANDN:
-		ret = atomic_futex_op_xchg_and(~oparg, uaddr, &oldval);
-		break;
-	case FUTEX_OP_XOR:
-		ret = atomic_futex_op_xchg_xor(oparg, uaddr, &oldval);
-		break;
-	default:
-		ret = -ENOSYS;
-		break;
-	}
-
-	pagefault_enable();
-
-	if (!ret)
-		*oval = oldval;
-
-	return ret;
-
-} /* end arch_futex_atomic_op_inuser() */