| David S. Miller | 442a7c4 | 2012-08-22 20:47:36 -0700 | [diff] [blame^] | 1 | #include <linux/linkage.h> |
| 2 | #include <asm/visasm.h> |
| 3 | #include <asm/asi.h> |
| 4 | |
| 5 | #define F3F(x,y,z) (((x)<<30)|((y)<<19)|((z)<<5)) |
| 6 | |
| 7 | #define FPD_ENCODE(x) (((x) >> 5) | ((x) & ~(0x20))) |
| 8 | |
| 9 | #define RS1(x) (FPD_ENCODE(x) << 14) |
| 10 | #define RS2(x) (FPD_ENCODE(x) << 0) |
| 11 | #define RD(x) (FPD_ENCODE(x) << 25) |
| 12 | |
| 13 | #define CRC32C(a,b,c) \ |
| 14 | .word (F3F(2,0x36,0x147)|RS1(a)|RS2(b)|RD(c)); |
| 15 | |
| 16 | ENTRY(crc32c_sparc64) |
| 17 | /* %o0=crc32p, %o1=data_ptr, %o2=len */ |
| 18 | VISEntryHalf |
| 19 | lda [%o0] ASI_PL, %f1 |
| 20 | 1: ldd [%o1], %f2 |
| 21 | CRC32C(0,2,0) |
| 22 | subcc %o2, 8, %o2 |
| 23 | bne,pt %icc, 1b |
| 24 | add %o1, 0x8, %o1 |
| 25 | sta %f1, [%o0] ASI_PL |
| 26 | VISExitHalf |
| 27 | 2: retl |
| 28 | nop |
| 29 | ENDPROC(crc32c_sparc64) |