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-rw-r--r--arch/powerpc/kernel/ppc_ksyms.c9
-rw-r--r--arch/powerpc/lib/Makefile9
-rw-r--r--arch/powerpc/lib/bitops.c (renamed from arch/ppc64/kernel/bitops.c)97
-rw-r--r--arch/ppc/Makefile3
-rw-r--r--arch/ppc/kernel/bitops.c126
-rw-r--r--arch/ppc64/kernel/Makefile2
6 files changed, 58 insertions, 188 deletions
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 8bc540337ba..47d6f7e2ea9 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 dfb33915ad6..34f5c2e074c 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 ae329e8b4ac..b67ce3004eb 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 94d5716fa7c..e719a4933af 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 7f53d193968..00000000000
--- 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 247d2fc6a8e..990df0905c8 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 \
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 21:07:40 +0000