diff options
Diffstat (limited to 'pfinet/asm')
-rw-r--r-- | pfinet/asm/bitops.h | 135 | ||||
-rw-r--r-- | pfinet/asm/segment.h | 21 | ||||
-rw-r--r-- | pfinet/asm/system.h | 10 |
3 files changed, 0 insertions, 166 deletions
diff --git a/pfinet/asm/bitops.h b/pfinet/asm/bitops.h deleted file mode 100644 index ee339bd6..00000000 --- a/pfinet/asm/bitops.h +++ /dev/null @@ -1,135 +0,0 @@ -#ifndef _I386_BITOPS_H -#define _I386_BITOPS_H - -/* - * Copyright 1992, Linus Torvalds. - */ - -/* - * These have to be done with inline assembly: that way the bit-setting - * is guaranteed to be atomic. All bit operations return 0 if the bit - * was cleared before the operation and != 0 if it was not. - * - * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1). - */ - -/* - * Some hacks to defeat gcc over-optimizations.. - */ -struct __dummy { unsigned long a[100]; }; -#define ADDR (*(struct __dummy *) addr) - -extern __inline__ int set_bit(int nr, void * addr) -{ - int oldbit; - - __asm__ __volatile__("btsl %2,%1\n\tsbbl %0,%0" - :"=r" (oldbit),"=m" (ADDR) - :"r" (nr)); - return oldbit; -} - -extern __inline__ int clear_bit(int nr, void * addr) -{ - int oldbit; - - __asm__ __volatile__("btrl %2,%1\n\tsbbl %0,%0" - :"=r" (oldbit),"=m" (ADDR) - :"r" (nr)); - return oldbit; -} - -extern __inline__ int change_bit(int nr, void * addr) -{ - int oldbit; - - __asm__ __volatile__("btcl %2,%1\n\tsbbl %0,%0" - :"=r" (oldbit),"=m" (ADDR) - :"r" (nr)); - return oldbit; -} - -/* - * This routine doesn't need to be atomic, but it's faster to code it - * this way. - */ -extern __inline__ int test_bit(int nr, void * addr) -{ - int oldbit; - - __asm__ __volatile__("btl %2,%1\n\tsbbl %0,%0" - :"=r" (oldbit) - :"m" (ADDR),"r" (nr)); - return oldbit; -} - -/* - * Find-bit routines.. - */ -extern inline int find_first_zero_bit(void * addr, unsigned size) -{ - int res; - - if (!size) - return 0; - __asm__(" - cld - movl $-1,%%eax - repe; scasl - je 1f - subl $4,%%edi - movl (%%edi),%%eax - notl %%eax - bsfl %%eax,%%edx - jmp 2f -1: xorl %%edx,%%edx -2: subl %%ebx,%%edi - shll $3,%%edi - addl %%edi,%%edx" - :"=d" (res) - :"c" ((size + 31) >> 5), "D" (addr), "b" (addr) - :"ax", "bx", "cx", "di"); - return res; -} - -extern inline int find_next_zero_bit (void * addr, int size, int offset) -{ - unsigned long * p = ((unsigned long *) addr) + (offset >> 5); - int set = 0, bit = offset & 31, res; - - if (bit) { - /* - * Look for zero in first byte - */ - __asm__(" - bsfl %1,%0 - jne 1f - movl $32, %0 -1: " - : "=r" (set) - : "r" (~(*p >> bit))); - if (set < (32 - bit)) - return set + offset; - set = 32 - bit; - p++; - } - /* - * No zero yet, search remaining full bytes for a zero - */ - res = find_first_zero_bit (p, size - 32 * (p - (unsigned long *) addr)); - return (offset + set + res); -} - -/* - * ffz = Find First Zero in word. Undefined if no zero exists, - * so code should check against ~0UL first.. - */ -extern inline unsigned long ffz(unsigned long word) -{ - __asm__("bsfl %1,%0" - :"=r" (word) - :"r" (~word)); - return word; -} - -#endif /* _I386_BITOPS_H */ diff --git a/pfinet/asm/segment.h b/pfinet/asm/segment.h deleted file mode 100644 index 34c35b96..00000000 --- a/pfinet/asm/segment.h +++ /dev/null @@ -1,21 +0,0 @@ -#ifndef _HACK_ASM_SEGMENT_H_ -#define _HACK_ASM_SEGMENT_H_ - -#include <sys/types.h> - -#define get_fs_long(addr) (*(long *)(addr)) -#define get_user_long(addr) (*(long *)(addr)) - -#define get_fs_byte(addr) (*(char *)(addr)) -#define get_user_byte(addr) (*(char *)(addr)) - -#define put_fs_long(x,addr) (*(long *)(addr) = (x)) -#define put_user_long(x,addr) (*(long *)(addr) = (x) - -#define put_fs_byte(x,addr) (*(char *)(addr) = (x)) -#define put_user_byte(x,addr) (*(char *)(addr) = (x)) - -#define memcpy_fromfs(a,b,s) (memcpy (a, b, s)) -#define memcpy_tofs(a,b,s) (memcpy (a, b, s)) - -#endif diff --git a/pfinet/asm/system.h b/pfinet/asm/system.h deleted file mode 100644 index f828c3bb..00000000 --- a/pfinet/asm/system.h +++ /dev/null @@ -1,10 +0,0 @@ -#ifndef _HACK_ASM_SYSTEM_H_ -#define _HACK_ASM_SYSTEM_H_ - -#define intr_count 0 -#define save_flags(x) ((x) = 0) -#define restore_flags(x) -#define cli() -#define sti() - -#endif |