diff options
Diffstat (limited to 'arch/sparc64/lib/bzero.S')
-rw-r--r-- | arch/sparc64/lib/bzero.S | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/arch/sparc64/lib/bzero.S b/arch/sparc64/lib/bzero.S deleted file mode 100644 index c7bbae8c590..00000000000 --- a/arch/sparc64/lib/bzero.S +++ /dev/null @@ -1,158 +0,0 @@ -/* bzero.S: Simple prefetching memset, bzero, and clear_user - * implementations. - * - * Copyright (C) 2005 David S. Miller <davem@davemloft.net> - */ - - .text - - .globl __memset - .type __memset, #function -__memset: /* %o0=buf, %o1=pat, %o2=len */ - - .globl memset - .type memset, #function -memset: /* %o0=buf, %o1=pat, %o2=len */ - and %o1, 0xff, %o3 - mov %o2, %o1 - sllx %o3, 8, %g1 - or %g1, %o3, %o2 - sllx %o2, 16, %g1 - or %g1, %o2, %o2 - sllx %o2, 32, %g1 - ba,pt %xcc, 1f - or %g1, %o2, %o2 - - .globl __bzero - .type __bzero, #function -__bzero: /* %o0=buf, %o1=len */ - clr %o2 -1: mov %o0, %o3 - brz,pn %o1, __bzero_done - cmp %o1, 16 - bl,pn %icc, __bzero_tiny - prefetch [%o0 + 0x000], #n_writes - andcc %o0, 0x3, %g0 - be,pt %icc, 2f -1: stb %o2, [%o0 + 0x00] - add %o0, 1, %o0 - andcc %o0, 0x3, %g0 - bne,pn %icc, 1b - sub %o1, 1, %o1 -2: andcc %o0, 0x7, %g0 - be,pt %icc, 3f - stw %o2, [%o0 + 0x00] - sub %o1, 4, %o1 - add %o0, 4, %o0 -3: and %o1, 0x38, %g1 - cmp %o1, 0x40 - andn %o1, 0x3f, %o4 - bl,pn %icc, 5f - and %o1, 0x7, %o1 - prefetch [%o0 + 0x040], #n_writes - prefetch [%o0 + 0x080], #n_writes - prefetch [%o0 + 0x0c0], #n_writes - prefetch [%o0 + 0x100], #n_writes - prefetch [%o0 + 0x140], #n_writes -4: prefetch [%o0 + 0x180], #n_writes - stx %o2, [%o0 + 0x00] - stx %o2, [%o0 + 0x08] - stx %o2, [%o0 + 0x10] - stx %o2, [%o0 + 0x18] - stx %o2, [%o0 + 0x20] - stx %o2, [%o0 + 0x28] - stx %o2, [%o0 + 0x30] - stx %o2, [%o0 + 0x38] - subcc %o4, 0x40, %o4 - bne,pt %icc, 4b - add %o0, 0x40, %o0 - brz,pn %g1, 6f - nop -5: stx %o2, [%o0 + 0x00] - subcc %g1, 8, %g1 - bne,pt %icc, 5b - add %o0, 0x8, %o0 -6: brz,pt %o1, __bzero_done - nop -__bzero_tiny: -1: stb %o2, [%o0 + 0x00] - subcc %o1, 1, %o1 - bne,pt %icc, 1b - add %o0, 1, %o0 -__bzero_done: - retl - mov %o3, %o0 - .size __bzero, .-__bzero - .size __memset, .-__memset - .size memset, .-memset - -#define EX_ST(x,y) \ -98: x,y; \ - .section .fixup; \ - .align 4; \ -99: retl; \ - mov %o1, %o0; \ - .section __ex_table,"a";\ - .align 4; \ - .word 98b, 99b; \ - .text; \ - .align 4; - - .globl __clear_user - .type __clear_user, #function -__clear_user: /* %o0=buf, %o1=len */ - brz,pn %o1, __clear_user_done - cmp %o1, 16 - bl,pn %icc, __clear_user_tiny - EX_ST(prefetcha [%o0 + 0x00] %asi, #n_writes) - andcc %o0, 0x3, %g0 - be,pt %icc, 2f -1: EX_ST(stba %g0, [%o0 + 0x00] %asi) - add %o0, 1, %o0 - andcc %o0, 0x3, %g0 - bne,pn %icc, 1b - sub %o1, 1, %o1 -2: andcc %o0, 0x7, %g0 - be,pt %icc, 3f - EX_ST(stwa %g0, [%o0 + 0x00] %asi) - sub %o1, 4, %o1 - add %o0, 4, %o0 -3: and %o1, 0x38, %g1 - cmp %o1, 0x40 - andn %o1, 0x3f, %o4 - bl,pn %icc, 5f - and %o1, 0x7, %o1 - EX_ST(prefetcha [%o0 + 0x040] %asi, #n_writes) - EX_ST(prefetcha [%o0 + 0x080] %asi, #n_writes) - EX_ST(prefetcha [%o0 + 0x0c0] %asi, #n_writes) - EX_ST(prefetcha [%o0 + 0x100] %asi, #n_writes) - EX_ST(prefetcha [%o0 + 0x140] %asi, #n_writes) -4: EX_ST(prefetcha [%o0 + 0x180] %asi, #n_writes) - EX_ST(stxa %g0, [%o0 + 0x00] %asi) - EX_ST(stxa %g0, [%o0 + 0x08] %asi) - EX_ST(stxa %g0, [%o0 + 0x10] %asi) - EX_ST(stxa %g0, [%o0 + 0x18] %asi) - EX_ST(stxa %g0, [%o0 + 0x20] %asi) - EX_ST(stxa %g0, [%o0 + 0x28] %asi) - EX_ST(stxa %g0, [%o0 + 0x30] %asi) - EX_ST(stxa %g0, [%o0 + 0x38] %asi) - subcc %o4, 0x40, %o4 - bne,pt %icc, 4b - add %o0, 0x40, %o0 - brz,pn %g1, 6f - nop -5: EX_ST(stxa %g0, [%o0 + 0x00] %asi) - subcc %g1, 8, %g1 - bne,pt %icc, 5b - add %o0, 0x8, %o0 -6: brz,pt %o1, __clear_user_done - nop -__clear_user_tiny: -1: EX_ST(stba %g0, [%o0 + 0x00] %asi) - subcc %o1, 1, %o1 - bne,pt %icc, 1b - add %o0, 1, %o0 -__clear_user_done: - retl - clr %o0 - .size __clear_user, .-__clear_user |