diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc/include/asm/asi.h | 19 | ||||
| -rw-r--r-- | arch/sparc/kernel/head_64.S | 2 | ||||
| -rw-r--r-- | arch/sparc/lib/Makefile | 2 | ||||
| -rw-r--r-- | arch/sparc/lib/NG4clear_page.S | 29 | ||||
| -rw-r--r-- | arch/sparc/lib/NG4copy_page.S | 16 | ||||
| -rw-r--r-- | arch/sparc/lib/NG4memset.S | 105 | ||||
| -rw-r--r-- | arch/sparc/lib/NG4patch.S | 15 |
7 files changed, 176 insertions, 12 deletions
diff --git a/arch/sparc/include/asm/asi.h b/arch/sparc/include/asm/asi.h index cc0006dc5d4..aace6f31371 100644 --- a/arch/sparc/include/asm/asi.h +++ b/arch/sparc/include/asm/asi.h @@ -270,9 +270,28 @@ #define ASI_BLK_INIT_QUAD_LDD_P 0xe2 /* (NG) init-store, twin load, * primary, implicit */ +#define ASI_BLK_INIT_QUAD_LDD_S 0xe3 /* (NG) init-store, twin load, + * secondary, implicit + */ #define ASI_BLK_P 0xf0 /* Primary, blk ld/st */ #define ASI_BLK_S 0xf1 /* Secondary, blk ld/st */ +#define ASI_ST_BLKINIT_MRU_P 0xf2 /* (NG4) init-store, twin load, + * Most-Recently-Used, primary, + * implicit + */ +#define ASI_ST_BLKINIT_MRU_S 0xf2 /* (NG4) init-store, twin load, + * Most-Recently-Used, secondary, + * implicit + */ #define ASI_BLK_PL 0xf8 /* Primary, blk ld/st, little */ #define ASI_BLK_SL 0xf9 /* Secondary, blk ld/st, little */ +#define ASI_ST_BLKINIT_MRU_PL 0xfa /* (NG4) init-store, twin load, + * Most-Recently-Used, primary, + * implicit, little-endian + */ +#define ASI_ST_BLKINIT_MRU_SL 0xfb /* (NG4) init-store, twin load, + * Most-Recently-Used, secondary, + * implicit, little-endian + */ #endif /* _SPARC_ASI_H */ diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S index ee5dcced249..2feb15c35d9 100644 --- a/arch/sparc/kernel/head_64.S +++ b/arch/sparc/kernel/head_64.S @@ -576,7 +576,7 @@ niagara_tlb_fixup: niagara4_patch: call niagara4_patch_copyops nop - call niagara_patch_bzero + call niagara4_patch_bzero nop call niagara4_patch_pageops nop diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile index 30f6ab51c55..8410065f286 100644 --- a/arch/sparc/lib/Makefile +++ b/arch/sparc/lib/Makefile @@ -33,7 +33,7 @@ lib-$(CONFIG_SPARC64) += NG2memcpy.o NG2copy_from_user.o NG2copy_to_user.o lib-$(CONFIG_SPARC64) += NG2patch.o lib-$(CONFIG_SPARC64) += NG4memcpy.o NG4copy_from_user.o NG4copy_to_user.o -lib-$(CONFIG_SPARC64) += NG4patch.o NG4copy_page.o +lib-$(CONFIG_SPARC64) += NG4patch.o NG4copy_page.o NG4clear_page.o NG4memset.o lib-$(CONFIG_SPARC64) += GENmemcpy.o GENcopy_from_user.o GENcopy_to_user.o lib-$(CONFIG_SPARC64) += GENpatch.o GENpage.o GENbzero.o diff --git a/arch/sparc/lib/NG4clear_page.S b/arch/sparc/lib/NG4clear_page.S new file mode 100644 index 00000000000..e16c88204a4 --- /dev/null +++ b/arch/sparc/lib/NG4clear_page.S @@ -0,0 +1,29 @@ +/* NG4copy_page.S: Niagara-4 optimized clear page. + * + * Copyright (C) 2012 (davem@davemloft.net) + */ + +#include <asm/asi.h> +#include <asm/page.h> + + .text + + .register %g3, #scratch + + .align 32 + .globl NG4clear_page + .globl NG4clear_user_page +NG4clear_page: /* %o0=dest */ +NG4clear_user_page: /* %o0=dest, %o1=vaddr */ + set PAGE_SIZE, %g7 + mov 0x20, %g3 +1: stxa %g0, [%o0 + %g0] ASI_ST_BLKINIT_MRU_P + subcc %g7, 0x40, %g7 + stxa %g0, [%o0 + %g3] ASI_ST_BLKINIT_MRU_P + bne,pt %xcc, 1b + add %o0, 0x40, %o0 + membar #StoreLoad|#StoreStore + retl + nop + .size NG4clear_page,.-NG4clear_page + .size NG4clear_user_page,.-NG4clear_user_page
\ No newline at end of file diff --git a/arch/sparc/lib/NG4copy_page.S b/arch/sparc/lib/NG4copy_page.S index f30ec10bbca..28504e88c53 100644 --- a/arch/sparc/lib/NG4copy_page.S +++ b/arch/sparc/lib/NG4copy_page.S @@ -30,25 +30,25 @@ NG4copy_user_page: /* %o0=dest, %o1=src, %o2=vaddr */ ldx [%o1 + 0x10], %o4 ldx [%o1 + 0x18], %o5 ldx [%o1 + 0x20], %g1 - stxa %o2, [%o0] ASI_BLK_INIT_QUAD_LDD_P + stxa %o2, [%o0] ASI_ST_BLKINIT_MRU_P add %o0, 0x08, %o0 ldx [%o1 + 0x28], %g2 - stxa %o3, [%o0] ASI_BLK_INIT_QUAD_LDD_P + stxa %o3, [%o0] ASI_ST_BLKINIT_MRU_P add %o0, 0x08, %o0 ldx [%o1 + 0x30], %g3 - stxa %o4, [%o0] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0] ASI_ST_BLKINIT_MRU_P add %o0, 0x08, %o0 ldx [%o1 + 0x38], %o2 add %o1, 0x40, %o1 - stxa %o5, [%o0] ASI_BLK_INIT_QUAD_LDD_P + stxa %o5, [%o0] ASI_ST_BLKINIT_MRU_P add %o0, 0x08, %o0 - stxa %g1, [%o0] ASI_BLK_INIT_QUAD_LDD_P + stxa %g1, [%o0] ASI_ST_BLKINIT_MRU_P add %o0, 0x08, %o0 - stxa %g2, [%o0] ASI_BLK_INIT_QUAD_LDD_P + stxa %g2, [%o0] ASI_ST_BLKINIT_MRU_P add %o0, 0x08, %o0 - stxa %g3, [%o0] ASI_BLK_INIT_QUAD_LDD_P + stxa %g3, [%o0] ASI_ST_BLKINIT_MRU_P add %o0, 0x08, %o0 - stxa %o2, [%o0] ASI_BLK_INIT_QUAD_LDD_P + stxa %o2, [%o0] ASI_ST_BLKINIT_MRU_P add %o0, 0x08, %o0 bne,pt %icc, 1b prefetch [%o1 + 0x200], #n_reads_strong diff --git a/arch/sparc/lib/NG4memset.S b/arch/sparc/lib/NG4memset.S new file mode 100644 index 00000000000..41da4bdd95c --- /dev/null +++ b/arch/sparc/lib/NG4memset.S @@ -0,0 +1,105 @@ +/* NG4memset.S: Niagara-4 optimized memset/bzero. + * + * Copyright (C) 2012 David S. Miller (davem@davemloft.net) + */ + +#include <asm/asi.h> + + .register %g2, #scratch + .register %g3, #scratch + + .text + .align 32 + .globl NG4memset +NG4memset: + andcc %o1, 0xff, %o4 + be,pt %icc, 1f + mov %o2, %o1 + sllx %o4, 8, %g1 + or %g1, %o4, %o2 + sllx %o2, 16, %g1 + or %g1, %o2, %o2 + sllx %o2, 32, %g1 + ba,pt %icc, 1f + or %g1, %o2, %o4 + .size NG4memset,.-NG4memset + + .align 32 + .globl NG4bzero +NG4bzero: + clr %o4 +1: cmp %o1, 16 + ble %icc, .Ltiny + mov %o0, %o3 + sub %g0, %o0, %g1 + and %g1, 0x7, %g1 + brz,pt %g1, .Laligned8 + sub %o1, %g1, %o1 +1: stb %o4, [%o0 + 0x00] + subcc %g1, 1, %g1 + bne,pt %icc, 1b + add %o0, 1, %o0 +.Laligned8: + cmp %o1, 64 + (64 - 8) + ble .Lmedium + sub %g0, %o0, %g1 + andcc %g1, (64 - 1), %g1 + brz,pn %g1, .Laligned64 + sub %o1, %g1, %o1 +1: stx %o4, [%o0 + 0x00] + subcc %g1, 8, %g1 + bne,pt %icc, 1b + add %o0, 0x8, %o0 +.Laligned64: + andn %o1, 64 - 1, %g1 + sub %o1, %g1, %o1 + brnz,pn %o4, .Lnon_bzero_loop + mov 0x20, %g2 +1: stxa %o4, [%o0 + %g0] ASI_BLK_INIT_QUAD_LDD_P + subcc %g1, 0x40, %g1 + stxa %o4, [%o0 + %g2] ASI_BLK_INIT_QUAD_LDD_P + bne,pt %icc, 1b + add %o0, 0x40, %o0 +.Lpostloop: + cmp %o1, 8 + bl,pn %icc, .Ltiny + membar #StoreStore|#StoreLoad +.Lmedium: + andn %o1, 0x7, %g1 + sub %o1, %g1, %o1 +1: stx %o4, [%o0 + 0x00] + subcc %g1, 0x8, %g1 + bne,pt %icc, 1b + add %o0, 0x08, %o0 + andcc %o1, 0x4, %g1 + be,pt %icc, .Ltiny + sub %o1, %g1, %o1 + stw %o4, [%o0 + 0x00] + add %o0, 0x4, %o0 +.Ltiny: + cmp %o1, 0 + be,pn %icc, .Lexit +1: subcc %o1, 1, %o1 + stb %o4, [%o0 + 0x00] + bne,pt %icc, 1b + add %o0, 1, %o0 +.Lexit: + retl + mov %o3, %o0 +.Lnon_bzero_loop: + mov 0x08, %g3 + mov 0x28, %o5 +1: stxa %o4, [%o0 + %g0] ASI_BLK_INIT_QUAD_LDD_P + subcc %g1, 0x40, %g1 + stxa %o4, [%o0 + %g2] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0 + %g3] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0 + %o5] ASI_BLK_INIT_QUAD_LDD_P + add %o0, 0x10, %o0 + stxa %o4, [%o0 + %g0] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0 + %g2] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0 + %g3] ASI_BLK_INIT_QUAD_LDD_P + stxa %o4, [%o0 + %o5] ASI_BLK_INIT_QUAD_LDD_P + bne,pt %icc, 1b + add %o0, 0x30, %o0 + ba,a,pt %icc, .Lpostloop + .size NG4bzero,.-NG4bzero diff --git a/arch/sparc/lib/NG4patch.S b/arch/sparc/lib/NG4patch.S index c21c34c61dd..a114cbcf2a4 100644 --- a/arch/sparc/lib/NG4patch.S +++ b/arch/sparc/lib/NG4patch.S @@ -32,12 +32,23 @@ niagara4_patch_copyops: nop .size niagara4_patch_copyops,.-niagara4_patch_copyops + .globl niagara4_patch_bzero + .type niagara4_patch_bzero,#function +niagara4_patch_bzero: + NG_DO_PATCH(memset, NG4memset) + NG_DO_PATCH(__bzero, NG4bzero) + NG_DO_PATCH(__clear_user, NGclear_user) + NG_DO_PATCH(tsb_init, NGtsb_init) + retl + nop + .size niagara4_patch_bzero,.-niagara4_patch_bzero + .globl niagara4_patch_pageops .type niagara4_patch_pageops,#function niagara4_patch_pageops: NG_DO_PATCH(copy_user_page, NG4copy_user_page) - NG_DO_PATCH(_clear_page, NGclear_page) - NG_DO_PATCH(clear_user_page, NGclear_user_page) + NG_DO_PATCH(_clear_page, NG4clear_page) + NG_DO_PATCH(clear_user_page, NG4clear_user_page) retl nop .size niagara4_patch_pageops,.-niagara4_patch_pageops |