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-rw-r--r--include/asm-frv/bitops.h412
1 files changed, 0 insertions, 412 deletions
diff --git a/include/asm-frv/bitops.h b/include/asm-frv/bitops.h
deleted file mode 100644
index 287f6f697ce..00000000000
--- a/include/asm-frv/bitops.h
+++ /dev/null
@@ -1,412 +0,0 @@
-/* bitops.h: bit operations for the Fujitsu FR-V CPUs
- *
- * For an explanation of how atomic ops work in this arch, see:
- * Documentation/frv/atomic-ops.txt
- *
- * 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_BITOPS_H
-#define _ASM_BITOPS_H
-
-#include <linux/compiler.h>
-#include <asm/byteorder.h>
-
-#ifdef __KERNEL__
-
-#ifndef _LINUX_BITOPS_H
-#error only <linux/bitops.h> can be included directly
-#endif
-
-#include <asm-generic/bitops/ffz.h>
-
-/*
- * clear_bit() doesn't provide any barrier for the compiler.
- */
-#define smp_mb__before_clear_bit() barrier()
-#define smp_mb__after_clear_bit() barrier()
-
-#ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
-static inline
-unsigned long atomic_test_and_ANDNOT_mask(unsigned long mask, volatile unsigned long *v)
-{
- unsigned long old, tmp;
-
- asm volatile(
- "0: \n"
- " orcc gr0,gr0,gr0,icc3 \n" /* set ICC3.Z */
- " ckeq icc3,cc7 \n"
- " ld.p %M0,%1 \n" /* LD.P/ORCR are atomic */
- " orcr cc7,cc7,cc3 \n" /* set CC3 to true */
- " and%I3 %1,%3,%2 \n"
- " cst.p %2,%M0 ,cc3,#1 \n" /* if store happens... */
- " corcc gr29,gr29,gr0 ,cc3,#1 \n" /* ... clear ICC3.Z */
- " beq icc3,#0,0b \n"
- : "+U"(*v), "=&r"(old), "=r"(tmp)
- : "NPr"(~mask)
- : "memory", "cc7", "cc3", "icc3"
- );
-
- return old;
-}
-
-static inline
-unsigned long atomic_test_and_OR_mask(unsigned long mask, volatile unsigned long *v)
-{
- unsigned long old, tmp;
-
- asm volatile(
- "0: \n"
- " orcc gr0,gr0,gr0,icc3 \n" /* set ICC3.Z */
- " ckeq icc3,cc7 \n"
- " ld.p %M0,%1 \n" /* LD.P/ORCR are atomic */
- " orcr cc7,cc7,cc3 \n" /* set CC3 to true */
- " or%I3 %1,%3,%2 \n"
- " cst.p %2,%M0 ,cc3,#1 \n" /* if store happens... */
- " corcc gr29,gr29,gr0 ,cc3,#1 \n" /* ... clear ICC3.Z */
- " beq icc3,#0,0b \n"
- : "+U"(*v), "=&r"(old), "=r"(tmp)
- : "NPr"(mask)
- : "memory", "cc7", "cc3", "icc3"
- );
-
- return old;
-}
-
-static inline
-unsigned long atomic_test_and_XOR_mask(unsigned long mask, volatile unsigned long *v)
-{
- unsigned long old, tmp;
-
- asm volatile(
- "0: \n"
- " orcc gr0,gr0,gr0,icc3 \n" /* set ICC3.Z */
- " ckeq icc3,cc7 \n"
- " ld.p %M0,%1 \n" /* LD.P/ORCR are atomic */
- " orcr cc7,cc7,cc3 \n" /* set CC3 to true */
- " xor%I3 %1,%3,%2 \n"
- " cst.p %2,%M0 ,cc3,#1 \n" /* if store happens... */
- " corcc gr29,gr29,gr0 ,cc3,#1 \n" /* ... clear ICC3.Z */
- " beq icc3,#0,0b \n"
- : "+U"(*v), "=&r"(old), "=r"(tmp)
- : "NPr"(mask)
- : "memory", "cc7", "cc3", "icc3"
- );
-
- return old;
-}
-
-#else
-
-extern unsigned long atomic_test_and_ANDNOT_mask(unsigned long mask, volatile unsigned long *v);
-extern unsigned long atomic_test_and_OR_mask(unsigned long mask, volatile unsigned long *v);
-extern unsigned long atomic_test_and_XOR_mask(unsigned long mask, volatile unsigned long *v);
-
-#endif
-
-#define atomic_clear_mask(mask, v) atomic_test_and_ANDNOT_mask((mask), (v))
-#define atomic_set_mask(mask, v) atomic_test_and_OR_mask((mask), (v))
-
-static inline int test_and_clear_bit(int nr, volatile void *addr)
-{
- volatile unsigned long *ptr = addr;
- unsigned long mask = 1UL << (nr & 31);
- ptr += nr >> 5;
- return (atomic_test_and_ANDNOT_mask(mask, ptr) & mask) != 0;
-}
-
-static inline int test_and_set_bit(int nr, volatile void *addr)
-{
- volatile unsigned long *ptr = addr;
- unsigned long mask = 1UL << (nr & 31);
- ptr += nr >> 5;
- return (atomic_test_and_OR_mask(mask, ptr) & mask) != 0;
-}
-
-static inline int test_and_change_bit(int nr, volatile void *addr)
-{
- volatile unsigned long *ptr = addr;
- unsigned long mask = 1UL << (nr & 31);
- ptr += nr >> 5;
- return (atomic_test_and_XOR_mask(mask, ptr) & mask) != 0;
-}
-
-static inline void clear_bit(int nr, volatile void *addr)
-{
- test_and_clear_bit(nr, addr);
-}
-
-static inline void set_bit(int nr, volatile void *addr)
-{
- test_and_set_bit(nr, addr);
-}
-
-static inline void change_bit(int nr, volatile void * addr)
-{
- test_and_change_bit(nr, addr);
-}
-
-static inline void __clear_bit(int nr, volatile void * addr)
-{
- volatile unsigned long *a = addr;
- int mask;
-
- a += nr >> 5;
- mask = 1 << (nr & 31);
- *a &= ~mask;
-}
-
-static inline void __set_bit(int nr, volatile void * addr)
-{
- volatile unsigned long *a = addr;
- int mask;
-
- a += nr >> 5;
- mask = 1 << (nr & 31);
- *a |= mask;
-}
-
-static inline void __change_bit(int nr, volatile void *addr)
-{
- volatile unsigned long *a = addr;
- int mask;
-
- a += nr >> 5;
- mask = 1 << (nr & 31);
- *a ^= mask;
-}
-
-static inline int __test_and_clear_bit(int nr, volatile void * addr)
-{
- volatile unsigned long *a = addr;
- int mask, retval;
-
- a += nr >> 5;
- mask = 1 << (nr & 31);
- retval = (mask & *a) != 0;
- *a &= ~mask;
- return retval;
-}
-
-static inline int __test_and_set_bit(int nr, volatile void * addr)
-{
- volatile unsigned long *a = addr;
- int mask, retval;
-
- a += nr >> 5;
- mask = 1 << (nr & 31);
- retval = (mask & *a) != 0;
- *a |= mask;
- return retval;
-}
-
-static inline int __test_and_change_bit(int nr, volatile void * addr)
-{
- volatile unsigned long *a = addr;
- int mask, retval;
-
- a += nr >> 5;
- mask = 1 << (nr & 31);
- retval = (mask & *a) != 0;
- *a ^= mask;
- return retval;
-}
-
-/*
- * This routine doesn't need to be atomic.
- */
-static inline int __constant_test_bit(int nr, const volatile void * addr)
-{
- return ((1UL << (nr & 31)) & (((const volatile unsigned int *) addr)[nr >> 5])) != 0;
-}
-
-static inline int __test_bit(int nr, const volatile void * addr)
-{
- int * a = (int *) addr;
- int mask;
-
- a += nr >> 5;
- mask = 1 << (nr & 0x1f);
- return ((mask & *a) != 0);
-}
-
-#define test_bit(nr,addr) \
-(__builtin_constant_p(nr) ? \
- __constant_test_bit((nr),(addr)) : \
- __test_bit((nr),(addr)))
-
-#include <asm-generic/bitops/find.h>
-
-/**
- * fls - find last bit set
- * @x: the word to search
- *
- * This is defined the same way as ffs:
- * - return 32..1 to indicate bit 31..0 most significant bit set
- * - return 0 to indicate no bits set
- */
-#define fls(x) \
-({ \
- int bit; \
- \
- asm(" subcc %1,gr0,gr0,icc0 \n" \
- " ckne icc0,cc4 \n" \
- " cscan.p %1,gr0,%0 ,cc4,#1 \n" \
- " csub %0,%0,%0 ,cc4,#0 \n" \
- " csub %2,%0,%0 ,cc4,#1 \n" \
- : "=&r"(bit) \
- : "r"(x), "r"(32) \
- : "icc0", "cc4" \
- ); \
- \
- bit; \
-})
-
-/**
- * fls64 - find last bit set in a 64-bit value
- * @n: the value to search
- *
- * This is defined the same way as ffs:
- * - return 64..1 to indicate bit 63..0 most significant bit set
- * - return 0 to indicate no bits set
- */
-static inline __attribute__((const))
-int fls64(u64 n)
-{
- union {
- u64 ll;
- struct { u32 h, l; };
- } _;
- int bit, x, y;
-
- _.ll = n;
-
- asm(" subcc.p %3,gr0,gr0,icc0 \n"
- " subcc %4,gr0,gr0,icc1 \n"
- " ckne icc0,cc4 \n"
- " ckne icc1,cc5 \n"
- " norcr cc4,cc5,cc6 \n"
- " csub.p %0,%0,%0 ,cc6,1 \n"
- " orcr cc5,cc4,cc4 \n"
- " andcr cc4,cc5,cc4 \n"
- " cscan.p %3,gr0,%0 ,cc4,0 \n"
- " setlos #64,%1 \n"
- " cscan.p %4,gr0,%0 ,cc4,1 \n"
- " setlos #32,%2 \n"
- " csub.p %1,%0,%0 ,cc4,0 \n"
- " csub %2,%0,%0 ,cc4,1 \n"
- : "=&r"(bit), "=r"(x), "=r"(y)
- : "0r"(_.h), "r"(_.l)
- : "icc0", "icc1", "cc4", "cc5", "cc6"
- );
- return bit;
-
-}
-
-/**
- * ffs - find first bit set
- * @x: the word to search
- *
- * - return 32..1 to indicate bit 31..0 most least significant bit set
- * - return 0 to indicate no bits set
- */
-static inline __attribute__((const))
-int ffs(int x)
-{
- /* Note: (x & -x) gives us a mask that is the least significant
- * (rightmost) 1-bit of the value in x.
- */
- return fls(x & -x);
-}
-
-/**
- * __ffs - find first bit set
- * @x: the word to search
- *
- * - return 31..0 to indicate bit 31..0 most least significant bit set
- * - if no bits are set in x, the result is undefined
- */
-static inline __attribute__((const))
-int __ffs(unsigned long x)
-{
- int bit;
- asm("scan %1,gr0,%0" : "=r"(bit) : "r"(x & -x));
- return 31 - bit;
-}
-
-/**
- * __fls - find last (most-significant) set bit in a long word
- * @word: the word to search
- *
- * Undefined if no set bit exists, so code should check against 0 first.
- */
-static inline unsigned long __fls(unsigned long word)
-{
- unsigned long bit;
- asm("scan %1,gr0,%0" : "=r"(bit) : "r"(word));
- return bit;
-}
-
-/*
- * special slimline version of fls() for calculating ilog2_u32()
- * - note: no protection against n == 0
- */
-#define ARCH_HAS_ILOG2_U32
-static inline __attribute__((const))
-int __ilog2_u32(u32 n)
-{
- int bit;
- asm("scan %1,gr0,%0" : "=r"(bit) : "r"(n));
- return 31 - bit;
-}
-
-/*
- * special slimline version of fls64() for calculating ilog2_u64()
- * - note: no protection against n == 0
- */
-#define ARCH_HAS_ILOG2_U64
-static inline __attribute__((const))
-int __ilog2_u64(u64 n)
-{
- union {
- u64 ll;
- struct { u32 h, l; };
- } _;
- int bit, x, y;
-
- _.ll = n;
-
- asm(" subcc %3,gr0,gr0,icc0 \n"
- " ckeq icc0,cc4 \n"
- " cscan.p %3,gr0,%0 ,cc4,0 \n"
- " setlos #63,%1 \n"
- " cscan.p %4,gr0,%0 ,cc4,1 \n"
- " setlos #31,%2 \n"
- " csub.p %1,%0,%0 ,cc4,0 \n"
- " csub %2,%0,%0 ,cc4,1 \n"
- : "=&r"(bit), "=r"(x), "=r"(y)
- : "0r"(_.h), "r"(_.l)
- : "icc0", "cc4"
- );
- return bit;
-}
-
-#include <asm-generic/bitops/sched.h>
-#include <asm-generic/bitops/hweight.h>
-#include <asm-generic/bitops/lock.h>
-
-#include <asm-generic/bitops/ext2-non-atomic.h>
-
-#define ext2_set_bit_atomic(lock,nr,addr) test_and_set_bit ((nr) ^ 0x18, (addr))
-#define ext2_clear_bit_atomic(lock,nr,addr) test_and_clear_bit((nr) ^ 0x18, (addr))
-
-#include <asm-generic/bitops/minix-le.h>
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_BITOPS_H */
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