diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/ppc_ksyms.c | 9 | ||||
| -rw-r--r-- | arch/powerpc/lib/Makefile | 9 | ||||
| -rw-r--r-- | arch/powerpc/lib/bitops.c (renamed from arch/ppc64/kernel/bitops.c) | 97 | ||||
| -rw-r--r-- | arch/ppc/Makefile | 3 | ||||
| -rw-r--r-- | arch/ppc/kernel/bitops.c | 126 | ||||
| -rw-r--r-- | arch/ppc64/kernel/Makefile | 2 |
6 files changed, 58 insertions, 188 deletions
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index 8bc540337ba0..47d6f7e2ea9f 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -81,15 +81,6 @@ EXPORT_SYMBOL(_prep_type); EXPORT_SYMBOL(ucSystemType); #endif -#if !defined(__INLINE_BITOPS) -EXPORT_SYMBOL(set_bit); -EXPORT_SYMBOL(clear_bit); -EXPORT_SYMBOL(change_bit); -EXPORT_SYMBOL(test_and_set_bit); -EXPORT_SYMBOL(test_and_clear_bit); -EXPORT_SYMBOL(test_and_change_bit); -#endif /* __INLINE_BITOPS */ - EXPORT_SYMBOL(strcpy); EXPORT_SYMBOL(strncpy); EXPORT_SYMBOL(strcat); diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index dfb33915ad61..34f5c2e074c9 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -3,13 +3,14 @@ # ifeq ($(CONFIG_PPC_MERGE),y) -obj-y := string.o +obj-y := string.o strcase.o +obj-$(CONFIG_PPC32) += div64.o copy_32.o checksum_32.o endif -obj-y += strcase.o -obj-$(CONFIG_PPC32) += div64.o copy_32.o checksum_32.o +obj-y += bitops.o obj-$(CONFIG_PPC64) += checksum_64.o copypage_64.o copyuser_64.o \ - memcpy_64.o usercopy_64.o mem_64.o string.o + memcpy_64.o usercopy_64.o mem_64.o string.o \ + strcase.o obj-$(CONFIG_PPC_ISERIES) += e2a.o obj-$(CONFIG_XMON) += sstep.o diff --git a/arch/ppc64/kernel/bitops.c b/arch/powerpc/lib/bitops.c index ae329e8b4acb..b67ce3004ebf 100644 --- a/arch/ppc64/kernel/bitops.c +++ b/arch/powerpc/lib/bitops.c @@ -1,93 +1,97 @@ -/* - * These are too big to be inlined. - */ - -#include <linux/kernel.h> +#include <linux/types.h> #include <linux/module.h> -#include <linux/bitops.h> #include <asm/byteorder.h> +#include <asm/bitops.h> -unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) +/** + * find_next_bit - find the next set bit in a memory region + * @addr: The address to base the search on + * @offset: The bitnumber to start searching at + * @size: The maximum size to search + */ +unsigned long find_next_bit(const unsigned long *addr, unsigned long size, + unsigned long offset) { - const unsigned long *p = addr + (offset >> 6); - unsigned long result = offset & ~63UL; + const unsigned long *p = addr + BITOP_WORD(offset); + unsigned long result = offset & ~(BITS_PER_LONG-1); unsigned long tmp; if (offset >= size) return size; size -= result; - offset &= 63UL; + offset %= BITS_PER_LONG; if (offset) { tmp = *(p++); - tmp |= ~0UL >> (64 - offset); - if (size < 64) + tmp &= (~0UL << offset); + if (size < BITS_PER_LONG) goto found_first; - if (~tmp) + if (tmp) goto found_middle; - size -= 64; - result += 64; + size -= BITS_PER_LONG; + result += BITS_PER_LONG; } - while (size & ~63UL) { - if (~(tmp = *(p++))) + while (size & ~(BITS_PER_LONG-1)) { + if ((tmp = *(p++))) goto found_middle; - result += 64; - size -= 64; + result += BITS_PER_LONG; + size -= BITS_PER_LONG; } if (!size) return result; tmp = *p; found_first: - tmp |= ~0UL << size; - if (tmp == ~0UL) /* Are any bits zero? */ + tmp &= (~0UL >> (64 - size)); + if (tmp == 0UL) /* Are any bits set? */ return result + size; /* Nope. */ found_middle: - return result + ffz(tmp); + return result + __ffs(tmp); } +EXPORT_SYMBOL(find_next_bit); -EXPORT_SYMBOL(find_next_zero_bit); - -unsigned long find_next_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) +/* + * This implementation of find_{first,next}_zero_bit was stolen from + * Linus' asm-alpha/bitops.h. + */ +unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, + unsigned long offset) { - const unsigned long *p = addr + (offset >> 6); - unsigned long result = offset & ~63UL; + const unsigned long *p = addr + BITOP_WORD(offset); + unsigned long result = offset & ~(BITS_PER_LONG-1); unsigned long tmp; if (offset >= size) return size; size -= result; - offset &= 63UL; + offset %= BITS_PER_LONG; if (offset) { tmp = *(p++); - tmp &= (~0UL << offset); - if (size < 64) + tmp |= ~0UL >> (BITS_PER_LONG - offset); + if (size < BITS_PER_LONG) goto found_first; - if (tmp) + if (~tmp) goto found_middle; - size -= 64; - result += 64; + size -= BITS_PER_LONG; + result += BITS_PER_LONG; } - while (size & ~63UL) { - if ((tmp = *(p++))) + while (size & ~(BITS_PER_LONG-1)) { + if (~(tmp = *(p++))) goto found_middle; - result += 64; - size -= 64; + result += BITS_PER_LONG; + size -= BITS_PER_LONG; } if (!size) return result; tmp = *p; found_first: - tmp &= (~0UL >> (64 - size)); - if (tmp == 0UL) /* Are any bits set? */ + tmp |= ~0UL << size; + if (tmp == ~0UL) /* Are any bits zero? */ return result + size; /* Nope. */ found_middle: - return result + __ffs(tmp); + return result + ffz(tmp); } - -EXPORT_SYMBOL(find_next_bit); +EXPORT_SYMBOL(find_next_zero_bit); static inline unsigned int ext2_ilog2(unsigned int x) { @@ -106,8 +110,8 @@ static inline unsigned int ext2_ffz(unsigned int x) return rc; } -unsigned long find_next_zero_le_bit(const unsigned long *addr, unsigned long size, - unsigned long offset) +unsigned long find_next_zero_le_bit(const unsigned long *addr, + unsigned long size, unsigned long offset) { const unsigned int *p = ((const unsigned int *)addr) + (offset >> 5); unsigned int result = offset & ~31; @@ -143,5 +147,4 @@ found_first: found_middle: return result + ext2_ffz(tmp); } - EXPORT_SYMBOL(find_next_zero_le_bit); diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile index 94d5716fa7c3..e719a4933af1 100644 --- a/arch/ppc/Makefile +++ b/arch/ppc/Makefile @@ -66,7 +66,8 @@ head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o core-y += arch/ppc/kernel/ arch/powerpc/kernel/ \ arch/ppc/platforms/ \ arch/ppc/mm/ arch/ppc/lib/ \ - arch/ppc/syslib/ arch/powerpc/sysdev/ + arch/ppc/syslib/ arch/powerpc/sysdev/ \ + arch/powerpc/lib/ core-$(CONFIG_4xx) += arch/ppc/platforms/4xx/ core-$(CONFIG_83xx) += arch/ppc/platforms/83xx/ core-$(CONFIG_85xx) += arch/ppc/platforms/85xx/ diff --git a/arch/ppc/kernel/bitops.c b/arch/ppc/kernel/bitops.c deleted file mode 100644 index 7f53d193968b..000000000000 --- a/arch/ppc/kernel/bitops.c +++ /dev/null @@ -1,126 +0,0 @@ -/* - * Copyright (C) 1996 Paul Mackerras. - */ - -#include <linux/kernel.h> -#include <linux/bitops.h> - -/* - * If the bitops are not inlined in bitops.h, they are defined here. - * -- paulus - */ -#if !__INLINE_BITOPS -void set_bit(int nr, volatile void * addr) -{ - unsigned long old; - unsigned long mask = 1 << (nr & 0x1f); - unsigned long *p = ((unsigned long *)addr) + (nr >> 5); - - __asm__ __volatile__(SMP_WMB "\n\ -1: lwarx %0,0,%3 \n\ - or %0,%0,%2 \n" - PPC405_ERR77(0,%3) -" stwcx. %0,0,%3 \n\ - bne 1b" - SMP_MB - : "=&r" (old), "=m" (*p) - : "r" (mask), "r" (p), "m" (*p) - : "cc" ); -} - -void clear_bit(int nr, volatile void *addr) -{ - unsigned long old; - unsigned long mask = 1 << (nr & 0x1f); - unsigned long *p = ((unsigned long *)addr) + (nr >> 5); - - __asm__ __volatile__(SMP_WMB "\n\ -1: lwarx %0,0,%3 \n\ - andc %0,%0,%2 \n" - PPC405_ERR77(0,%3) -" stwcx. %0,0,%3 \n\ - bne 1b" - SMP_MB - : "=&r" (old), "=m" (*p) - : "r" (mask), "r" (p), "m" (*p) - : "cc"); -} - -void change_bit(int nr, volatile void *addr) -{ - unsigned long old; - unsigned long mask = 1 << (nr & 0x1f); - unsigned long *p = ((unsigned long *)addr) + (nr >> 5); - - __asm__ __volatile__(SMP_WMB "\n\ -1: lwarx %0,0,%3 \n\ - xor %0,%0,%2 \n" - PPC405_ERR77(0,%3) -" stwcx. %0,0,%3 \n\ - bne 1b" - SMP_MB - : "=&r" (old), "=m" (*p) - : "r" (mask), "r" (p), "m" (*p) - : "cc"); -} - -int test_and_set_bit(int nr, volatile void *addr) -{ - unsigned int old, t; - unsigned int mask = 1 << (nr & 0x1f); - volatile unsigned int *p = ((volatile unsigned int *)addr) + (nr >> 5); - - __asm__ __volatile__(SMP_WMB "\n\ -1: lwarx %0,0,%4 \n\ - or %1,%0,%3 \n" - PPC405_ERR77(0,%4) -" stwcx. %1,0,%4 \n\ - bne 1b" - SMP_MB - : "=&r" (old), "=&r" (t), "=m" (*p) - : "r" (mask), "r" (p), "m" (*p) - : "cc"); - - return (old & mask) != 0; -} - -int test_and_clear_bit(int nr, volatile void *addr) -{ - unsigned int old, t; - unsigned int mask = 1 << (nr & 0x1f); - volatile unsigned int *p = ((volatile unsigned int *)addr) + (nr >> 5); - - __asm__ __volatile__(SMP_WMB "\n\ -1: lwarx %0,0,%4 \n\ - andc %1,%0,%3 \n" - PPC405_ERR77(0,%4) -" stwcx. %1,0,%4 \n\ - bne 1b" - SMP_MB - : "=&r" (old), "=&r" (t), "=m" (*p) - : "r" (mask), "r" (p), "m" (*p) - : "cc"); - - return (old & mask) != 0; -} - -int test_and_change_bit(int nr, volatile void *addr) -{ - unsigned int old, t; - unsigned int mask = 1 << (nr & 0x1f); - volatile unsigned int *p = ((volatile unsigned int *)addr) + (nr >> 5); - - __asm__ __volatile__(SMP_WMB "\n\ -1: lwarx %0,0,%4 \n\ - xor %1,%0,%3 \n" - PPC405_ERR77(0,%4) -" stwcx. %1,0,%4 \n\ - bne 1b" - SMP_MB - : "=&r" (old), "=&r" (t), "=m" (*p) - : "r" (mask), "r" (p), "m" (*p) - : "cc"); - - return (old & mask) != 0; -} -#endif /* !__INLINE_BITOPS */ diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile index 247d2fc6a8ed..990df0905c87 100644 --- a/arch/ppc64/kernel/Makefile +++ b/arch/ppc64/kernel/Makefile @@ -13,7 +13,7 @@ endif obj-y += irq.o idle.o dma.o \ signal.o \ - align.o bitops.o pacaData.o \ + align.o pacaData.o \ udbg.o ioctl32.o \ rtc.o \ cpu_setup_power4.o \ |
