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authorLinus Torvalds <torvalds@linux-foundation.org>2009-02-10 14:48:49 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-10 14:48:49 -0500
commit226b79104f625f3f58a8388b8b32a4b90415bf02 (patch)
tree408a91f47b33fd59711a75cebbcb69a22b9fe7cd /arch
parent29ef01179d37168a021293ede77afbf091a49af4 (diff)
parentaeb398768345c74a9e4c01aa3ebf839e858312ec (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Fix probe_kernel_{read,write}(). sparc64: Kill .fixup section bloat. sparc64: Don't hook up pcr_ops on spitfire chips. sparc64: Call dump_stack() in die_nmi().
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc/kernel/head_64.S31
-rw-r--r--arch/sparc/kernel/nmi.c1
-rw-r--r--arch/sparc/kernel/pcr.c7
-rw-r--r--arch/sparc/lib/GENbzero.S6
-rw-r--r--arch/sparc/lib/GENcopy_from_user.S8
-rw-r--r--arch/sparc/lib/GENcopy_to_user.S8
-rw-r--r--arch/sparc/lib/NG2copy_from_user.S9
-rw-r--r--arch/sparc/lib/NG2copy_to_user.S9
-rw-r--r--arch/sparc/lib/NGbzero.S6
-rw-r--r--arch/sparc/lib/NGcopy_from_user.S9
-rw-r--r--arch/sparc/lib/NGcopy_to_user.S9
-rw-r--r--arch/sparc/lib/U1copy_from_user.S8
-rw-r--r--arch/sparc/lib/U1copy_to_user.S8
-rw-r--r--arch/sparc/lib/U3copy_from_user.S6
-rw-r--r--arch/sparc/lib/U3copy_to_user.S8
-rw-r--r--arch/sparc/lib/bzero.S6
-rw-r--r--arch/sparc/lib/copy_in_user.S61
17 files changed, 74 insertions, 126 deletions
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index 8ffee714f932..a46c3a21e26d 100644
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -891,10 +891,35 @@ prom_tba: .xword 0
891tlb_type: .word 0 /* Must NOT end up in BSS */ 891tlb_type: .word 0 /* Must NOT end up in BSS */
892 .section ".fixup",#alloc,#execinstr 892 .section ".fixup",#alloc,#execinstr
893 893
894 .globl __ret_efault, __retl_efault 894 .globl __ret_efault, __retl_efault, __ret_one, __retl_one
895__ret_efault: 895ENTRY(__ret_efault)
896 ret 896 ret
897 restore %g0, -EFAULT, %o0 897 restore %g0, -EFAULT, %o0
898__retl_efault: 898ENDPROC(__ret_efault)
899
900ENTRY(__retl_efault)
899 retl 901 retl
900 mov -EFAULT, %o0 902 mov -EFAULT, %o0
903ENDPROC(__retl_efault)
904
905ENTRY(__retl_one)
906 retl
907 mov 1, %o0
908ENDPROC(__retl_one)
909
910ENTRY(__ret_one_asi)
911 wr %g0, ASI_AIUS, %asi
912 ret
913 restore %g0, 1, %o0
914ENDPROC(__ret_one_asi)
915
916ENTRY(__retl_one_asi)
917 wr %g0, ASI_AIUS, %asi
918 retl
919 mov 1, %o0
920ENDPROC(__retl_one_asi)
921
922ENTRY(__retl_o1)
923 retl
924 mov %o1, %o0
925ENDPROC(__retl_o1)
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c
index 09f088ed4a64..f3577223c863 100644
--- a/arch/sparc/kernel/nmi.c
+++ b/arch/sparc/kernel/nmi.c
@@ -70,6 +70,7 @@ static void die_nmi(const char *str, struct pt_regs *regs, int do_panic)
70 printk(" on CPU%d, ip %08lx, registers:\n", 70 printk(" on CPU%d, ip %08lx, registers:\n",
71 smp_processor_id(), regs->tpc); 71 smp_processor_id(), regs->tpc);
72 show_regs(regs); 72 show_regs(regs);
73 dump_stack();
73 74
74 bust_spinlocks(0); 75 bust_spinlocks(0);
75 76
diff --git a/arch/sparc/kernel/pcr.c b/arch/sparc/kernel/pcr.c
index 92e0dda141a4..1ae8cdd7e703 100644
--- a/arch/sparc/kernel/pcr.c
+++ b/arch/sparc/kernel/pcr.c
@@ -133,11 +133,16 @@ int __init pcr_arch_init(void)
133 133
134 case cheetah: 134 case cheetah:
135 case cheetah_plus: 135 case cheetah_plus:
136 case spitfire:
137 pcr_ops = &direct_pcr_ops; 136 pcr_ops = &direct_pcr_ops;
138 pcr_enable = PCR_SUN4U_ENABLE; 137 pcr_enable = PCR_SUN4U_ENABLE;
139 break; 138 break;
140 139
140 case spitfire:
141 /* UltraSPARC-I/II and derivatives lack a profile
142 * counter overflow interrupt so we can't make use of
143 * their hardware currently.
144 */
145 /* fallthrough */
141 default: 146 default:
142 err = -ENODEV; 147 err = -ENODEV;
143 goto out_unregister; 148 goto out_unregister;
diff --git a/arch/sparc/lib/GENbzero.S b/arch/sparc/lib/GENbzero.S
index 6a4f956a2f7a..8e7a843ddd88 100644
--- a/arch/sparc/lib/GENbzero.S
+++ b/arch/sparc/lib/GENbzero.S
@@ -6,13 +6,9 @@
6 6
7#define EX_ST(x,y) \ 7#define EX_ST(x,y) \
898: x,y; \ 898: x,y; \
9 .section .fixup; \
10 .align 4; \
1199: retl; \
12 mov %o1, %o0; \
13 .section __ex_table,"a";\ 9 .section __ex_table,"a";\
14 .align 4; \ 10 .align 4; \
15 .word 98b, 99b; \ 11 .word 98b, __retl_o1; \
16 .text; \ 12 .text; \
17 .align 4; 13 .align 4;
18 14
diff --git a/arch/sparc/lib/GENcopy_from_user.S b/arch/sparc/lib/GENcopy_from_user.S
index 2b9df99e87f9..b7d0bd6b1406 100644
--- a/arch/sparc/lib/GENcopy_from_user.S
+++ b/arch/sparc/lib/GENcopy_from_user.S
@@ -5,13 +5,9 @@
5 5
6#define EX_LD(x) \ 6#define EX_LD(x) \
798: x; \ 798: x; \
8 .section .fixup; \
9 .align 4; \
1099: retl; \
11 mov 1, %o0; \
12 .section __ex_table,"a";\ 8 .section __ex_table,"a";\
13 .align 4; \ 9 .align 4; \
14 .word 98b, 99b; \ 10 .word 98b, __retl_one; \
15 .text; \ 11 .text; \
16 .align 4; 12 .align 4;
17 13
@@ -27,7 +23,7 @@
27#define PREAMBLE \ 23#define PREAMBLE \
28 rd %asi, %g1; \ 24 rd %asi, %g1; \
29 cmp %g1, ASI_AIUS; \ 25 cmp %g1, ASI_AIUS; \
30 bne,pn %icc, memcpy_user_stub; \ 26 bne,pn %icc, ___copy_in_user; \
31 nop 27 nop
32#endif 28#endif
33 29
diff --git a/arch/sparc/lib/GENcopy_to_user.S b/arch/sparc/lib/GENcopy_to_user.S
index bb3f7084daf9..780550e1afc7 100644
--- a/arch/sparc/lib/GENcopy_to_user.S
+++ b/arch/sparc/lib/GENcopy_to_user.S
@@ -5,13 +5,9 @@
5 5
6#define EX_ST(x) \ 6#define EX_ST(x) \
798: x; \ 798: x; \
8 .section .fixup; \
9 .align 4; \
1099: retl; \
11 mov 1, %o0; \
12 .section __ex_table,"a";\ 8 .section __ex_table,"a";\
13 .align 4; \ 9 .align 4; \
14 .word 98b, 99b; \ 10 .word 98b, __retl_one; \
15 .text; \ 11 .text; \
16 .align 4; 12 .align 4;
17 13
@@ -31,7 +27,7 @@
31#define PREAMBLE \ 27#define PREAMBLE \
32 rd %asi, %g1; \ 28 rd %asi, %g1; \
33 cmp %g1, ASI_AIUS; \ 29 cmp %g1, ASI_AIUS; \
34 bne,pn %icc, memcpy_user_stub; \ 30 bne,pn %icc, ___copy_in_user; \
35 nop 31 nop
36#endif 32#endif
37 33
diff --git a/arch/sparc/lib/NG2copy_from_user.S b/arch/sparc/lib/NG2copy_from_user.S
index c77ef5f22102..119ccb9a54f4 100644
--- a/arch/sparc/lib/NG2copy_from_user.S
+++ b/arch/sparc/lib/NG2copy_from_user.S
@@ -5,14 +5,9 @@
5 5
6#define EX_LD(x) \ 6#define EX_LD(x) \
798: x; \ 798: x; \
8 .section .fixup; \
9 .align 4; \
1099: wr %g0, ASI_AIUS, %asi;\
11 retl; \
12 mov 1, %o0; \
13 .section __ex_table,"a";\ 8 .section __ex_table,"a";\
14 .align 4; \ 9 .align 4; \
15 .word 98b, 99b; \ 10 .word 98b, __retl_one_asi;\
16 .text; \ 11 .text; \
17 .align 4; 12 .align 4;
18 13
@@ -33,7 +28,7 @@
33#define PREAMBLE \ 28#define PREAMBLE \
34 rd %asi, %g1; \ 29 rd %asi, %g1; \
35 cmp %g1, ASI_AIUS; \ 30 cmp %g1, ASI_AIUS; \
36 bne,pn %icc, memcpy_user_stub; \ 31 bne,pn %icc, ___copy_in_user; \
37 nop 32 nop
38#endif 33#endif
39 34
diff --git a/arch/sparc/lib/NG2copy_to_user.S b/arch/sparc/lib/NG2copy_to_user.S
index 4bd4093acbbd..7fe1ccefd9d0 100644
--- a/arch/sparc/lib/NG2copy_to_user.S
+++ b/arch/sparc/lib/NG2copy_to_user.S
@@ -5,14 +5,9 @@
5 5
6#define EX_ST(x) \ 6#define EX_ST(x) \
798: x; \ 798: x; \
8 .section .fixup; \
9 .align 4; \
1099: wr %g0, ASI_AIUS, %asi;\
11 retl; \
12 mov 1, %o0; \
13 .section __ex_table,"a";\ 8 .section __ex_table,"a";\
14 .align 4; \ 9 .align 4; \
15 .word 98b, 99b; \ 10 .word 98b, __retl_one_asi;\
16 .text; \ 11 .text; \
17 .align 4; 12 .align 4;
18 13
@@ -42,7 +37,7 @@
42#define PREAMBLE \ 37#define PREAMBLE \
43 rd %asi, %g1; \ 38 rd %asi, %g1; \
44 cmp %g1, ASI_AIUS; \ 39 cmp %g1, ASI_AIUS; \
45 bne,pn %icc, memcpy_user_stub; \ 40 bne,pn %icc, ___copy_in_user; \
46 nop 41 nop
47#endif 42#endif
48 43
diff --git a/arch/sparc/lib/NGbzero.S b/arch/sparc/lib/NGbzero.S
index 814d5f7a45e1..beab29bf419b 100644
--- a/arch/sparc/lib/NGbzero.S
+++ b/arch/sparc/lib/NGbzero.S
@@ -6,13 +6,9 @@
6 6
7#define EX_ST(x,y) \ 7#define EX_ST(x,y) \
898: x,y; \ 898: x,y; \
9 .section .fixup; \
10 .align 4; \
1199: retl; \
12 mov %o1, %o0; \
13 .section __ex_table,"a";\ 9 .section __ex_table,"a";\
14 .align 4; \ 10 .align 4; \
15 .word 98b, 99b; \ 11 .word 98b, __retl_o1; \
16 .text; \ 12 .text; \
17 .align 4; 13 .align 4;
18 14
diff --git a/arch/sparc/lib/NGcopy_from_user.S b/arch/sparc/lib/NGcopy_from_user.S
index e7f433f71b42..5d1e4d1ac21e 100644
--- a/arch/sparc/lib/NGcopy_from_user.S
+++ b/arch/sparc/lib/NGcopy_from_user.S
@@ -5,14 +5,9 @@
5 5
6#define EX_LD(x) \ 6#define EX_LD(x) \
798: x; \ 798: x; \
8 .section .fixup; \
9 .align 4; \
1099: wr %g0, ASI_AIUS, %asi;\
11 ret; \
12 restore %g0, 1, %o0; \
13 .section __ex_table,"a";\ 8 .section __ex_table,"a";\
14 .align 4; \ 9 .align 4; \
15 .word 98b, 99b; \ 10 .word 98b, __ret_one_asi;\
16 .text; \ 11 .text; \
17 .align 4; 12 .align 4;
18 13
@@ -30,7 +25,7 @@
30#define PREAMBLE \ 25#define PREAMBLE \
31 rd %asi, %g1; \ 26 rd %asi, %g1; \
32 cmp %g1, ASI_AIUS; \ 27 cmp %g1, ASI_AIUS; \
33 bne,pn %icc, memcpy_user_stub; \ 28 bne,pn %icc, ___copy_in_user; \
34 nop 29 nop
35#endif 30#endif
36 31
diff --git a/arch/sparc/lib/NGcopy_to_user.S b/arch/sparc/lib/NGcopy_to_user.S
index 6ea01c5532a0..ff630dcb273c 100644
--- a/arch/sparc/lib/NGcopy_to_user.S
+++ b/arch/sparc/lib/NGcopy_to_user.S
@@ -5,14 +5,9 @@
5 5
6#define EX_ST(x) \ 6#define EX_ST(x) \
798: x; \ 798: x; \
8 .section .fixup; \
9 .align 4; \
1099: wr %g0, ASI_AIUS, %asi;\
11 ret; \
12 restore %g0, 1, %o0; \
13 .section __ex_table,"a";\ 8 .section __ex_table,"a";\
14 .align 4; \ 9 .align 4; \
15 .word 98b, 99b; \ 10 .word 98b, __ret_one_asi;\
16 .text; \ 11 .text; \
17 .align 4; 12 .align 4;
18 13
@@ -33,7 +28,7 @@
33#define PREAMBLE \ 28#define PREAMBLE \
34 rd %asi, %g1; \ 29 rd %asi, %g1; \
35 cmp %g1, ASI_AIUS; \ 30 cmp %g1, ASI_AIUS; \
36 bne,pn %icc, memcpy_user_stub; \ 31 bne,pn %icc, ___copy_in_user; \
37 nop 32 nop
38#endif 33#endif
39 34
diff --git a/arch/sparc/lib/U1copy_from_user.S b/arch/sparc/lib/U1copy_from_user.S
index 3192b0bf4fab..a6ae2ea04bf5 100644
--- a/arch/sparc/lib/U1copy_from_user.S
+++ b/arch/sparc/lib/U1copy_from_user.S
@@ -5,13 +5,9 @@
5 5
6#define EX_LD(x) \ 6#define EX_LD(x) \
798: x; \ 798: x; \
8 .section .fixup; \
9 .align 4; \
1099: retl; \
11 mov 1, %o0; \
12 .section __ex_table,"a";\ 8 .section __ex_table,"a";\
13 .align 4; \ 9 .align 4; \
14 .word 98b, 99b; \ 10 .word 98b, __retl_one; \
15 .text; \ 11 .text; \
16 .align 4; 12 .align 4;
17 13
@@ -27,7 +23,7 @@
27#define PREAMBLE \ 23#define PREAMBLE \
28 rd %asi, %g1; \ 24 rd %asi, %g1; \
29 cmp %g1, ASI_AIUS; \ 25 cmp %g1, ASI_AIUS; \
30 bne,pn %icc, memcpy_user_stub; \ 26 bne,pn %icc, ___copy_in_user; \
31 nop; \ 27 nop; \
32 28
33#include "U1memcpy.S" 29#include "U1memcpy.S"
diff --git a/arch/sparc/lib/U1copy_to_user.S b/arch/sparc/lib/U1copy_to_user.S
index d1210ffb0b82..f4b970eeb485 100644
--- a/arch/sparc/lib/U1copy_to_user.S
+++ b/arch/sparc/lib/U1copy_to_user.S
@@ -5,13 +5,9 @@
5 5
6#define EX_ST(x) \ 6#define EX_ST(x) \
798: x; \ 798: x; \
8 .section .fixup; \
9 .align 4; \
1099: retl; \
11 mov 1, %o0; \
12 .section __ex_table,"a";\ 8 .section __ex_table,"a";\
13 .align 4; \ 9 .align 4; \
14 .word 98b, 99b; \ 10 .word 98b, __retl_one; \
15 .text; \ 11 .text; \
16 .align 4; 12 .align 4;
17 13
@@ -27,7 +23,7 @@
27#define PREAMBLE \ 23#define PREAMBLE \
28 rd %asi, %g1; \ 24 rd %asi, %g1; \
29 cmp %g1, ASI_AIUS; \ 25 cmp %g1, ASI_AIUS; \
30 bne,pn %icc, memcpy_user_stub; \ 26 bne,pn %icc, ___copy_in_user; \
31 nop; \ 27 nop; \
32 28
33#include "U1memcpy.S" 29#include "U1memcpy.S"
diff --git a/arch/sparc/lib/U3copy_from_user.S b/arch/sparc/lib/U3copy_from_user.S
index f5bfc8d9d216..b1acd1331c33 100644
--- a/arch/sparc/lib/U3copy_from_user.S
+++ b/arch/sparc/lib/U3copy_from_user.S
@@ -5,13 +5,9 @@
5 5
6#define EX_LD(x) \ 6#define EX_LD(x) \
798: x; \ 798: x; \
8 .section .fixup; \
9 .align 4; \
1099: retl; \
11 mov 1, %o0; \
12 .section __ex_table,"a";\ 8 .section __ex_table,"a";\
13 .align 4; \ 9 .align 4; \
14 .word 98b, 99b; \ 10 .word 98b, __retl_one; \
15 .text; \ 11 .text; \
16 .align 4; 12 .align 4;
17 13
diff --git a/arch/sparc/lib/U3copy_to_user.S b/arch/sparc/lib/U3copy_to_user.S
index 2334f111bb0c..ef1e493afdfa 100644
--- a/arch/sparc/lib/U3copy_to_user.S
+++ b/arch/sparc/lib/U3copy_to_user.S
@@ -5,13 +5,9 @@
5 5
6#define EX_ST(x) \ 6#define EX_ST(x) \
798: x; \ 798: x; \
8 .section .fixup; \
9 .align 4; \
1099: retl; \
11 mov 1, %o0; \
12 .section __ex_table,"a";\ 8 .section __ex_table,"a";\
13 .align 4; \ 9 .align 4; \
14 .word 98b, 99b; \ 10 .word 98b, __retl_one; \
15 .text; \ 11 .text; \
16 .align 4; 12 .align 4;
17 13
@@ -27,7 +23,7 @@
27#define PREAMBLE \ 23#define PREAMBLE \
28 rd %asi, %g1; \ 24 rd %asi, %g1; \
29 cmp %g1, ASI_AIUS; \ 25 cmp %g1, ASI_AIUS; \
30 bne,pn %icc, memcpy_user_stub; \ 26 bne,pn %icc, ___copy_in_user; \
31 nop; \ 27 nop; \
32 28
33#include "U3memcpy.S" 29#include "U3memcpy.S"
diff --git a/arch/sparc/lib/bzero.S b/arch/sparc/lib/bzero.S
index c7bbae8c590f..b6557297440f 100644
--- a/arch/sparc/lib/bzero.S
+++ b/arch/sparc/lib/bzero.S
@@ -88,13 +88,9 @@ __bzero_done:
88 88
89#define EX_ST(x,y) \ 89#define EX_ST(x,y) \
9098: x,y; \ 9098: x,y; \
91 .section .fixup; \
92 .align 4; \
9399: retl; \
94 mov %o1, %o0; \
95 .section __ex_table,"a";\ 91 .section __ex_table,"a";\
96 .align 4; \ 92 .align 4; \
97 .word 98b, 99b; \ 93 .word 98b, __retl_o1; \
98 .text; \ 94 .text; \
99 .align 4; 95 .align 4;
100 96
diff --git a/arch/sparc/lib/copy_in_user.S b/arch/sparc/lib/copy_in_user.S
index 650af3f21f78..302c0e60dc2c 100644
--- a/arch/sparc/lib/copy_in_user.S
+++ b/arch/sparc/lib/copy_in_user.S
@@ -3,19 +3,16 @@
3 * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com) 3 * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
4 */ 4 */
5 5
6#include <linux/linkage.h>
6#include <asm/asi.h> 7#include <asm/asi.h>
7 8
8#define XCC xcc 9#define XCC xcc
9 10
10#define EX(x,y) \ 11#define EX(x,y) \
1198: x,y; \ 1298: x,y; \
12 .section .fixup; \
13 .align 4; \
1499: retl; \
15 mov 1, %o0; \
16 .section __ex_table,"a";\ 13 .section __ex_table,"a";\
17 .align 4; \ 14 .align 4; \
18 .word 98b, 99b; \ 15 .word 98b, __retl_one; \
19 .text; \ 16 .text; \
20 .align 4; 17 .align 4;
21 18
@@ -31,18 +28,7 @@
31 * to copy register windows around during thread cloning. 28 * to copy register windows around during thread cloning.
32 */ 29 */
33 30
34 .globl ___copy_in_user 31ENTRY(___copy_in_user) /* %o0=dst, %o1=src, %o2=len */
35 .type ___copy_in_user,#function
36___copy_in_user: /* %o0=dst, %o1=src, %o2=len */
37 /* Writing to %asi is _expensive_ so we hardcode it.
38 * Reading %asi to check for KERNEL_DS is comparatively
39 * cheap.
40 */
41 rd %asi, %g1
42 cmp %g1, ASI_AIUS
43 bne,pn %icc, memcpy_user_stub
44 nop
45
46 cmp %o2, 0 32 cmp %o2, 0
47 be,pn %XCC, 85f 33 be,pn %XCC, 85f
48 or %o0, %o1, %o3 34 or %o0, %o1, %o3
@@ -53,22 +39,24 @@ ___copy_in_user: /* %o0=dst, %o1=src, %o2=len */
53 /* 16 < len <= 64 */ 39 /* 16 < len <= 64 */
54 andcc %o3, 0x7, %g0 40 andcc %o3, 0x7, %g0
55 bne,pn %XCC, 90f 41 bne,pn %XCC, 90f
56 sub %o0, %o1, %o3 42 nop
57 43
58 andn %o2, 0x7, %o4 44 andn %o2, 0x7, %o4
59 and %o2, 0x7, %o2 45 and %o2, 0x7, %o2
601: subcc %o4, 0x8, %o4 461: subcc %o4, 0x8, %o4
61 EX(ldxa [%o1] %asi, %o5) 47 EX(ldxa [%o1] %asi, %o5)
62 EX(stxa %o5, [%o1 + %o3] ASI_AIUS) 48 EX(stxa %o5, [%o0] %asi)
49 add %o1, 0x8, %o1
63 bgu,pt %XCC, 1b 50 bgu,pt %XCC, 1b
64 add %o1, 0x8, %o1 51 add %o0, 0x8, %o0
65 andcc %o2, 0x4, %g0 52 andcc %o2, 0x4, %g0
66 be,pt %XCC, 1f 53 be,pt %XCC, 1f
67 nop 54 nop
68 sub %o2, 0x4, %o2 55 sub %o2, 0x4, %o2
69 EX(lduwa [%o1] %asi, %o5) 56 EX(lduwa [%o1] %asi, %o5)
70 EX(stwa %o5, [%o1 + %o3] ASI_AIUS) 57 EX(stwa %o5, [%o0] %asi)
71 add %o1, 0x4, %o1 58 add %o1, 0x4, %o1
59 add %o0, 0x4, %o0
721: cmp %o2, 0 601: cmp %o2, 0
73 be,pt %XCC, 85f 61 be,pt %XCC, 85f
74 nop 62 nop
@@ -78,14 +66,15 @@ ___copy_in_user: /* %o0=dst, %o1=src, %o2=len */
7880: /* 0 < len <= 16 */ 6680: /* 0 < len <= 16 */
79 andcc %o3, 0x3, %g0 67 andcc %o3, 0x3, %g0
80 bne,pn %XCC, 90f 68 bne,pn %XCC, 90f
81 sub %o0, %o1, %o3 69 nop
82 70
8382: 7182:
84 subcc %o2, 4, %o2 72 subcc %o2, 4, %o2
85 EX(lduwa [%o1] %asi, %g1) 73 EX(lduwa [%o1] %asi, %g1)
86 EX(stwa %g1, [%o1 + %o3] ASI_AIUS) 74 EX(stwa %g1, [%o0] %asi)
75 add %o1, 4, %o1
87 bgu,pt %XCC, 82b 76 bgu,pt %XCC, 82b
88 add %o1, 4, %o1 77 add %o0, 4, %o0
89 78
9085: retl 7985: retl
91 clr %o0 80 clr %o0
@@ -94,26 +83,10 @@ ___copy_in_user: /* %o0=dst, %o1=src, %o2=len */
9490: 8390:
95 subcc %o2, 1, %o2 84 subcc %o2, 1, %o2
96 EX(lduba [%o1] %asi, %g1) 85 EX(lduba [%o1] %asi, %g1)
97 EX(stba %g1, [%o1 + %o3] ASI_AIUS) 86 EX(stba %g1, [%o0] %asi)
87 add %o1, 1, %o1
98 bgu,pt %XCC, 90b 88 bgu,pt %XCC, 90b
99 add %o1, 1, %o1 89 add %o0, 1, %o0
100 retl 90 retl
101 clr %o0 91 clr %o0
102 92ENDPROC(___copy_in_user)
103 .size ___copy_in_user, .-___copy_in_user
104
105 /* Act like copy_{to,in}_user(), ie. return zero instead
106 * of original destination pointer. This is invoked when
107 * copy_{to,in}_user() finds that %asi is kernel space.
108 */
109 .globl memcpy_user_stub
110 .type memcpy_user_stub,#function
111memcpy_user_stub:
112 save %sp, -192, %sp
113 mov %i0, %o0
114 mov %i1, %o1
115 call memcpy
116 mov %i2, %o2
117 ret
118 restore %g0, %g0, %o0
119 .size memcpy_user_stub, .-memcpy_user_stub
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-15 18:37:47 -0500