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sparc: switch to RAW_COPY_USER

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... and drop zeroing in sparc32.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2017-03-21 17:04:45 -04:00
parent 1333eb7856
commit 31af2f36d5
21 changed files with 37 additions and 94 deletions
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2
arch/sparc/lib/GENcopy_from_user.S
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@@ -23,7 +23,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop
#endif

2
arch/sparc/lib/GENcopy_to_user.S
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@@ -27,7 +27,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop
#endif

4
arch/sparc/lib/GENpatch.S
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@@ -26,8 +26,8 @@
.type generic_patch_copyops,#function
generic_patch_copyops:
GEN_DO_PATCH(memcpy, GENmemcpy)
GEN_DO_PATCH(___copy_from_user, GENcopy_from_user)
GEN_DO_PATCH(___copy_to_user, GENcopy_to_user)
GEN_DO_PATCH(raw_copy_from_user, GENcopy_from_user)
GEN_DO_PATCH(raw_copy_to_user, GENcopy_to_user)
retl
nop
.size generic_patch_copyops,.-generic_patch_copyops

2
arch/sparc/lib/NG2copy_from_user.S
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@@ -36,7 +36,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop
#endif

2
arch/sparc/lib/NG2copy_to_user.S
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@@ -45,7 +45,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop
#endif

4
arch/sparc/lib/NG2patch.S
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@@ -26,8 +26,8 @@
.type niagara2_patch_copyops,#function
niagara2_patch_copyops:
NG_DO_PATCH(memcpy, NG2memcpy)
NG_DO_PATCH(___copy_from_user, NG2copy_from_user)
NG_DO_PATCH(___copy_to_user, NG2copy_to_user)
NG_DO_PATCH(raw_copy_from_user, NG2copy_from_user)
NG_DO_PATCH(raw_copy_to_user, NG2copy_to_user)
retl
nop
.size niagara2_patch_copyops,.-niagara2_patch_copyops

2
arch/sparc/lib/NG4copy_from_user.S
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@@ -31,7 +31,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop
#endif

2
arch/sparc/lib/NG4copy_to_user.S
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@@ -40,7 +40,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop
#endif

4
arch/sparc/lib/NG4patch.S
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@@ -26,8 +26,8 @@
.type niagara4_patch_copyops,#function
niagara4_patch_copyops:
NG_DO_PATCH(memcpy, NG4memcpy)
NG_DO_PATCH(___copy_from_user, NG4copy_from_user)
NG_DO_PATCH(___copy_to_user, NG4copy_to_user)
NG_DO_PATCH(raw_copy_from_user, NG4copy_from_user)
NG_DO_PATCH(raw_copy_to_user, NG4copy_to_user)
retl
nop
.size niagara4_patch_copyops,.-niagara4_patch_copyops

2
arch/sparc/lib/NGcopy_from_user.S
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@@ -25,7 +25,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop
#endif

2
arch/sparc/lib/NGcopy_to_user.S
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@@ -28,7 +28,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop
#endif

4
arch/sparc/lib/NGpatch.S
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@@ -26,8 +26,8 @@
.type niagara_patch_copyops,#function
niagara_patch_copyops:
NG_DO_PATCH(memcpy, NGmemcpy)
NG_DO_PATCH(___copy_from_user, NGcopy_from_user)
NG_DO_PATCH(___copy_to_user, NGcopy_to_user)
NG_DO_PATCH(raw_copy_from_user, NGcopy_from_user)
NG_DO_PATCH(raw_copy_to_user, NGcopy_to_user)
retl
nop
.size niagara_patch_copyops,.-niagara_patch_copyops

4
arch/sparc/lib/U1copy_from_user.S
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@@ -19,7 +19,7 @@
.text; \
.align 4;
#define FUNC_NAME ___copy_from_user
#define FUNC_NAME raw_copy_from_user
#define LOAD(type,addr,dest) type##a [addr] %asi, dest
#define LOAD_BLK(addr,dest) ldda [addr] ASI_BLK_AIUS, dest
#define EX_RETVAL(x) 0
@@ -31,7 +31,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop; \
#include "U1memcpy.S"

4
arch/sparc/lib/U1copy_to_user.S
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@@ -19,7 +19,7 @@
.text; \
.align 4;
#define FUNC_NAME ___copy_to_user
#define FUNC_NAME raw_copy_to_user
#define STORE(type,src,addr) type##a src, [addr] ASI_AIUS
#define STORE_BLK(src,addr) stda src, [addr] ASI_BLK_AIUS
#define EX_RETVAL(x) 0
@@ -31,7 +31,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop; \
#include "U1memcpy.S"

2
arch/sparc/lib/U3copy_to_user.S
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@@ -31,7 +31,7 @@
#define PREAMBLE \
rd %asi, %g1; \
cmp %g1, ASI_AIUS; \
bne,pn %icc, ___copy_in_user; \
bne,pn %icc, raw_copy_in_user; \
nop; \
#include "U3memcpy.S"

4
arch/sparc/lib/U3patch.S
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@@ -26,8 +26,8 @@
.type cheetah_patch_copyops,#function
cheetah_patch_copyops:
ULTRA3_DO_PATCH(memcpy, U3memcpy)
ULTRA3_DO_PATCH(___copy_from_user, U3copy_from_user)
ULTRA3_DO_PATCH(___copy_to_user, U3copy_to_user)
ULTRA3_DO_PATCH(raw_copy_from_user, U3copy_from_user)
ULTRA3_DO_PATCH(raw_copy_to_user, U3copy_to_user)
retl
nop
.size cheetah_patch_copyops,.-cheetah_patch_copyops

6
arch/sparc/lib/copy_in_user.S
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@@ -44,7 +44,7 @@ __retl_o2_plus_1:
* to copy register windows around during thread cloning.
*/
ENTRY(___copy_in_user) /* %o0=dst, %o1=src, %o2=len */
ENTRY(raw_copy_in_user) /* %o0=dst, %o1=src, %o2=len */
cmp %o2, 0
be,pn %XCC, 85f
or %o0, %o1, %o3
@@ -105,5 +105,5 @@ ENTRY(___copy_in_user) /* %o0=dst, %o1=src, %o2=len */
add %o0, 1, %o0
retl
clr %o0
ENDPROC(___copy_in_user)
EXPORT_SYMBOL(___copy_in_user)
ENDPROC(raw_copy_in_user)
EXPORT_SYMBOL(raw_copy_in_user)

16
arch/sparc/lib/copy_user.S
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@@ -364,21 +364,7 @@ short_aligned_end:
97:
mov %o2, %g3
fixupretl:
sethi %hi(PAGE_OFFSET), %g1
cmp %o0, %g1
blu 1f
cmp %o1, %g1
bgeu 1f
ld [%g6 + TI_PREEMPT], %g1
cmp %g1, 0
bne 1f
nop
save %sp, -64, %sp
mov %i0, %o0
call __bzero
mov %g3, %o1
restore
1: retl
retl
mov %g3, %o0
/* exception routine sets %g2 to (broken_insn - first_insn)>>2 */