3 files changed, 44 insertions, 149 deletions

diff --git a/include/asm-arm/bitops.h b/include/asm-arm/bitops.h
index d02de721ecc1..0ac54b1a8bad 100644
--- a/include/asm-arm/bitops.h
+++ b/include/asm-arm/bitops.h
@@ -117,65 +117,7 @@ ____atomic_test_and_change_bit(unsigned int bit, volatile unsigned long *p)
         return res & mask;
 }
 
-/*
- * Now the non-atomic variants.  We let the compiler handle all
- * optimisations for these.  These are all _native_ endian.
- */
-static inline void __set_bit(int nr, volatile unsigned long *p)
-{
-        p[nr >> 5] |= (1UL << (nr & 31));
-}
-
-static inline void __clear_bit(int nr, volatile unsigned long *p)
-{
-        p[nr >> 5] &= ~(1UL << (nr & 31));
-}
-
-static inline void __change_bit(int nr, volatile unsigned long *p)
-{
-        p[nr >> 5] ^= (1UL << (nr & 31));
-}
-
-static inline int __test_and_set_bit(int nr, volatile unsigned long *p)
-{
-        unsigned long oldval, mask = 1UL << (nr & 31);
-
-        p += nr >> 5;
-
-        oldval = *p;
-        *p = oldval | mask;
-        return oldval & mask;
-}
-
-static inline int __test_and_clear_bit(int nr, volatile unsigned long *p)
-{
-        unsigned long oldval, mask = 1UL << (nr & 31);
-
-        p += nr >> 5;
-
-        oldval = *p;
-        *p = oldval & ~mask;
-        return oldval & mask;
-}
-
-static inline int __test_and_change_bit(int nr, volatile unsigned long *p)
-{
-        unsigned long oldval, mask = 1UL << (nr & 31);
-
-        p += nr >> 5;
-
-        oldval = *p;
-        *p = oldval ^ mask;
-        return oldval & mask;
-}
-
-/*
- * This routine doesn't need to be atomic.
- */
-static inline int __test_bit(int nr, const volatile unsigned long * p)
-{
-        return (p[nr >> 5] >> (nr & 31)) & 1UL;
-}
+#include <asm-generic/bitops/non-atomic.h>
 
 /*
  *  A note about Endian-ness.
@@ -261,7 +203,6 @@ extern int _find_next_bit_be(const unsigned long *p, int size, int offset);
 #define test_and_set_bit(nr,p)          ATOMIC_BITOP_LE(test_and_set_bit,nr,p)
 #define test_and_clear_bit(nr,p)        ATOMIC_BITOP_LE(test_and_clear_bit,nr,p)
 #define test_and_change_bit(nr,p)       ATOMIC_BITOP_LE(test_and_change_bit,nr,p)
-#define test_bit(nr,p)                  __test_bit(nr,p)
 #define find_first_zero_bit(p,sz)       _find_first_zero_bit_le(p,sz)
 #define find_next_zero_bit(p,sz,off)    _find_next_zero_bit_le(p,sz,off)
 #define find_first_bit(p,sz)            _find_first_bit_le(p,sz)
@@ -280,7 +221,6 @@ extern int _find_next_bit_be(const unsigned long *p, int size, int offset);
 #define test_and_set_bit(nr,p)          ATOMIC_BITOP_BE(test_and_set_bit,nr,p)
 #define test_and_clear_bit(nr,p)        ATOMIC_BITOP_BE(test_and_clear_bit,nr,p)
 #define test_and_change_bit(nr,p)       ATOMIC_BITOP_BE(test_and_change_bit,nr,p)
-#define test_bit(nr,p)                  __test_bit(nr,p)
 #define find_first_zero_bit(p,sz)       _find_first_zero_bit_be(p,sz)
 #define find_next_zero_bit(p,sz,off)    _find_next_zero_bit_be(p,sz,off)
 #define find_first_bit(p,sz)            _find_first_bit_be(p,sz)
@@ -292,57 +232,41 @@ extern int _find_next_bit_be(const unsigned long *p, int size, int offset);
 
 #if __LINUX_ARM_ARCH__ < 5
 
-/*
- * ffz = Find First Zero in word. Undefined if no zero exists,
- * so code should check against ~0UL first..
- */
-static inline unsigned long ffz(unsigned long word)
-{
-        int k;
-
-        word = ~word;
-        k = 31;
-        if (word & 0x0000ffff) { k -= 16; word <<= 16; }
-        if (word & 0x00ff0000) { k -= 8;  word <<= 8;  }
-        if (word & 0x0f000000) { k -= 4;  word <<= 4;  }
-        if (word & 0x30000000) { k -= 2;  word <<= 2;  }
-        if (word & 0x40000000) { k -= 1; }
-        return k;
-}
-
-/*
- * ffz = Find First Zero in word. Undefined if no zero exists,
- * so code should check against ~0UL first..
- */
-static inline unsigned long __ffs(unsigned long word)
-{
-        int k;
-
-        k = 31;
-        if (word & 0x0000ffff) { k -= 16; word <<= 16; }
-        if (word & 0x00ff0000) { k -= 8;  word <<= 8;  }
-        if (word & 0x0f000000) { k -= 4;  word <<= 4;  }
-        if (word & 0x30000000) { k -= 2;  word <<= 2;  }
-        if (word & 0x40000000) { k -= 1; }
-        return k;
-}
-
-/*
- * fls: find last bit set.
- */
+#include <asm-generic/bitops/ffz.h>
+#include <asm-generic/bitops/__ffs.h>
+#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/ffs.h>
 
-#define fls(x) generic_fls(x)
-#define fls64(x)   generic_fls64(x)
-
-/*
- * ffs: find first bit set. This is defined the same way as
- * the libc and compiler builtin ffs routines, therefore
- * differs in spirit from the above ffz (man ffs).
- */
+#else
 
-#define ffs(x) generic_ffs(x)
+static inline int constant_fls(int x)
+{
+        int r = 32;
 
-#else
+        if (!x)
+                return 0;
+        if (!(x & 0xffff0000u)) {
+                x <<= 16;
+                r -= 16;
+        }
+        if (!(x & 0xff000000u)) {
+                x <<= 8;
+                r -= 8;
+        }
+        if (!(x & 0xf0000000u)) {
+                x <<= 4;
+                r -= 4;
+        }
+        if (!(x & 0xc0000000u)) {
+                x <<= 2;
+                r -= 2;
+        }
+        if (!(x & 0x80000000u)) {
+                x <<= 1;
+                r -= 1;
+        }
+        return r;
+}
 
 /*
  * On ARMv5 and above those functions can be implemented around
@@ -350,39 +274,18 @@ static inline unsigned long __ffs(unsigned long word)
  */
 
 #define fls(x) \
-        ( __builtin_constant_p(x) ? generic_fls(x) : \
+        ( __builtin_constant_p(x) ? constant_fls(x) : \
           ({ int __r; asm("clz\t%0, %1" : "=r"(__r) : "r"(x) : "cc"); 32-__r; }) )
-#define fls64(x)   generic_fls64(x)
 #define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); })
 #define __ffs(x) (ffs(x) - 1)
 #define ffz(x) __ffs( ~(x) )
 
 #endif
 
-/*
- * Find first bit set in a 168-bit bitmap, where the first
- * 128 bits are unlikely to be set.
- */
-static inline int sched_find_first_bit(const unsigned long *b)
-{
-        unsigned long v;
-        unsigned int off;
-
-        for (off = 0; v = b[off], off < 4; off++) {
-                if (unlikely(v))
-                        break;
-        }
-        return __ffs(v) + off * 32;
-}
-
-/*
- * hweightN: returns the hamming weight (i.e. the number
- * of bits set) of a N-bit word
- */
+#include <asm-generic/bitops/fls64.h>
 
-#define hweight32(x) generic_hweight32(x)
-#define hweight16(x) generic_hweight16(x)
-#define hweight8(x) generic_hweight8(x)
+#include <asm-generic/bitops/sched.h>
+#include <asm-generic/bitops/hweight.h>
 
 /*
  * Ext2 is defined to use little-endian byte ordering.
@@ -397,7 +300,7 @@ static inline int sched_find_first_bit(const unsigned long *b)
 #define ext2_clear_bit_atomic(lock,nr,p)        \
                 test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
 #define ext2_test_bit(nr,p)                     \
-                __test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+                test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
 #define ext2_find_first_zero_bit(p,sz)          \
                 _find_first_zero_bit_le(p,sz)
 #define ext2_find_next_zero_bit(p,sz,off)       \
@@ -410,7 +313,7 @@ static inline int sched_find_first_bit(const unsigned long *b)
 #define minix_set_bit(nr,p)                     \
                 __set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
 #define minix_test_bit(nr,p)                    \
-                __test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+                test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
 #define minix_test_and_set_bit(nr,p)            \
                 __test_and_set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
 #define minix_test_and_clear_bit(nr,p)          \
diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h
index b4e1146ab682..afa5c3ea077c 100644
--- a/include/asm-arm/memory.h
+++ b/include/asm-arm/memory.h
@@ -172,9 +172,7 @@ static inline __deprecated void *bus_to_virt(unsigned long x)
  *  virt_addr_valid(k)  indicates whether a virtual address is valid
  */
 #ifndef CONFIG_DISCONTIGMEM
-
-#define page_to_pfn(page)       (((page) - mem_map) + PHYS_PFN_OFFSET)
-#define pfn_to_page(pfn)        ((mem_map + (pfn)) - PHYS_PFN_OFFSET)
+#define ARCH_PFN_OFFSET         (PHYS_PFN_OFFSET)
 #define pfn_valid(pfn)          ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr))
 
 #define virt_to_page(kaddr)     (pfn_to_page(__pa(kaddr) >> PAGE_SHIFT))
@@ -189,13 +187,8 @@ static inline __deprecated void *bus_to_virt(unsigned long x)
  * around in memory.
  */
 #include <linux/numa.h>
-
-#define page_to_pfn(page)                                       \
-        (( (page) - page_zone(page)->zone_mem_map)              \
-          + page_zone(page)->zone_start_pfn)
-
-#define pfn_to_page(pfn)                                        \
-        (PFN_TO_MAPBASE(pfn) + LOCAL_MAP_NR((pfn) << PAGE_SHIFT))
+#define arch_pfn_to_nid(pfn)    (PFN_TO_NID(pfn))
+#define arch_local_page_offset(pfn, nid) (LOCAL_MAP_NR((pfn) << PAGE_OFFSET))
 
 #define pfn_valid(pfn)                                          \
         ({                                                      \
@@ -243,4 +236,6 @@ static inline __deprecated void *bus_to_virt(unsigned long x)
 
 #endif
 
+#include <asm-generic/memory_model.h>
+
 #endif
diff --git a/include/asm-arm/rtc.h b/include/asm-arm/rtc.h
index 370dfe77589d..1a5c9232a91e 100644
--- a/include/asm-arm/rtc.h
+++ b/include/asm-arm/rtc.h
@@ -25,9 +25,6 @@ struct rtc_ops {
         int             (*proc)(char *buf);
 };
 
-void rtc_time_to_tm(unsigned long, struct rtc_time *);
-int rtc_tm_to_time(struct rtc_time *, unsigned long *);
-int rtc_valid_tm(struct rtc_time *);
 void rtc_next_alarm_time(struct rtc_time *, struct rtc_time *, struct rtc_time *);
 void rtc_update(unsigned long, unsigned long);
 int register_rtc(struct rtc_ops *);