projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| ae2c6ca6 DM |
2 | /* NG4copy_page.S: Niagara-4 optimized copy page. |
| 3 | * | |
| 4 | * Copyright (C) 2012 (davem@davemloft.net) | |
| 5 | */ | |
| 6 | ||
| 7 | #include <asm/asi.h> | |
| 8 | #include <asm/page.h> | |
| 9 | ||
| 10 | .text | |
| 11 | .align 32 | |
| 12 | ||
| 13 | .register %g2, #scratch | |
| 14 | .register %g3, #scratch | |
| 15 | ||
| 16 | .globl NG4copy_user_page | |
| 17 | NG4copy_user_page: /* %o0=dest, %o1=src, %o2=vaddr */ | |
| 18 | prefetch [%o1 + 0x000], #n_reads_strong | |
| 19 | prefetch [%o1 + 0x040], #n_reads_strong | |
| 20 | prefetch [%o1 + 0x080], #n_reads_strong | |
| 21 | prefetch [%o1 + 0x0c0], #n_reads_strong | |
| 22 | set PAGE_SIZE, %g7 | |
| 23 | prefetch [%o1 + 0x100], #n_reads_strong | |
| 24 | prefetch [%o1 + 0x140], #n_reads_strong | |
| 25 | prefetch [%o1 + 0x180], #n_reads_strong | |
| 26 | prefetch [%o1 + 0x1c0], #n_reads_strong | |
| 27 | 1: | |
| 28 | ldx [%o1 + 0x00], %o2 | |
| 29 | subcc %g7, 0x40, %g7 | |
| 30 | ldx [%o1 + 0x08], %o3 | |
| 31 | ldx [%o1 + 0x10], %o4 | |
| 32 | ldx [%o1 + 0x18], %o5 | |
| 33 | ldx [%o1 + 0x20], %g1 | |
| 9f825962 | 34 | stxa %o2, [%o0] ASI_ST_BLKINIT_MRU_P |
| ae2c6ca6 DM |
35 | add %o0, 0x08, %o0 |
| 36 | ldx [%o1 + 0x28], %g2 | |
| 9f825962 | 37 | stxa %o3, [%o0] ASI_ST_BLKINIT_MRU_P |
| ae2c6ca6 DM |
38 | add %o0, 0x08, %o0 |
| 39 | ldx [%o1 + 0x30], %g3 | |
| 9f825962 | 40 | stxa %o4, [%o0] ASI_ST_BLKINIT_MRU_P |
| ae2c6ca6 DM |
41 | add %o0, 0x08, %o0 |
| 42 | ldx [%o1 + 0x38], %o2 | |
| 43 | add %o1, 0x40, %o1 | |
| 9f825962 | 44 | stxa %o5, [%o0] ASI_ST_BLKINIT_MRU_P |
| ae2c6ca6 | 45 | add %o0, 0x08, %o0 |
| 9f825962 | 46 | stxa %g1, [%o0] ASI_ST_BLKINIT_MRU_P |
| ae2c6ca6 | 47 | add %o0, 0x08, %o0 |
| 9f825962 | 48 | stxa %g2, [%o0] ASI_ST_BLKINIT_MRU_P |
| ae2c6ca6 | 49 | add %o0, 0x08, %o0 |
| 9f825962 | 50 | stxa %g3, [%o0] ASI_ST_BLKINIT_MRU_P |
| ae2c6ca6 | 51 | add %o0, 0x08, %o0 |
| 9f825962 | 52 | stxa %o2, [%o0] ASI_ST_BLKINIT_MRU_P |
| ae2c6ca6 DM |
53 | add %o0, 0x08, %o0 |
| 54 | bne,pt %icc, 1b | |
| 55 | prefetch [%o1 + 0x200], #n_reads_strong | |
| 56 | retl | |
| 57 | membar #StoreLoad | #StoreStore | |
| 58 | .size NG4copy_user_page,.-NG4copy_user_page |