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| author | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-02-10 13:45:43 -0600 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-02-10 13:45:43 -0600 |
| commit | 81b7bbd1932a04869d4c8635a75222dfc6089f96 (patch) | |
| tree | 285ae868a1e3a41fb0dbfe346c28e380949bcb55 /include/asm-s390/sfp-util.h | |
| parent | 98051995ab44b993f992946055edc6115351f725 (diff) | |
| parent | 66efc5a7e3061c3597ac43a8bb1026488d57e66b (diff) | |
Merge branch 'linus'
Conflicts:
drivers/scsi/ipr.c
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include/asm-s390/sfp-util.h')
| -rw-r--r-- | include/asm-s390/sfp-util.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/include/asm-s390/sfp-util.h b/include/asm-s390/sfp-util.h new file mode 100644 index 000000000000..8cabcd23d976 --- /dev/null +++ b/include/asm-s390/sfp-util.h @@ -0,0 +1,66 @@ +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/types.h> +#include <asm/byteorder.h> + +#define add_ssaaaa(sh, sl, ah, al, bh, bl) ({ \ + unsigned int __sh = (ah); \ + unsigned int __sl = (al); \ + asm volatile( \ + " alr %1,%3\n" \ + " brc 12,0f\n" \ + " ahi %0,1\n" \ + "0: alr %0,%2" \ + : "+&d" (__sh), "+d" (__sl) \ + : "d" (bh), "d" (bl) : "cc"); \ + (sh) = __sh; \ + (sl) = __sl; \ +}) + +#define sub_ddmmss(sh, sl, ah, al, bh, bl) ({ \ + unsigned int __sh = (ah); \ + unsigned int __sl = (al); \ + asm volatile( \ + " slr %1,%3\n" \ + " brc 3,0f\n" \ + " ahi %0,-1\n" \ + "0: slr %0,%2" \ + : "+&d" (__sh), "+d" (__sl) \ + : "d" (bh), "d" (bl) : "cc"); \ + (sh) = __sh; \ + (sl) = __sl; \ +}) + +/* a umul b = a mul b + (a>=2<<31) ? b<<32:0 + (b>=2<<31) ? a<<32:0 */ +#define umul_ppmm(wh, wl, u, v) ({ \ + unsigned int __wh = u; \ + unsigned int __wl = v; \ + asm volatile( \ + " ltr 1,%0\n" \ + " mr 0,%1\n" \ + " jnm 0f\n" \ + " alr 0,%1\n" \ + "0: ltr %1,%1\n" \ + " jnm 1f\n" \ + " alr 0,%0\n" \ + "1: lr %0,0\n" \ + " lr %1,1\n" \ + : "+d" (__wh), "+d" (__wl) \ + : : "0", "1", "cc"); \ + wh = __wh; \ + wl = __wl; \ +}) + +#define udiv_qrnnd(q, r, n1, n0, d) \ + do { unsigned int __r; \ + (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); \ + (r) = __r; \ + } while (0) +extern unsigned long __udiv_qrnnd (unsigned int *, unsigned int, + unsigned int , unsigned int); + +#define UDIV_NEEDS_NORMALIZATION 0 + +#define abort() return 0 + +#define __BYTE_ORDER __BIG_ENDIAN |