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| author | Paul Mundt <lethal@linux-sh.org> | 2009-05-09 17:57:21 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-05-09 17:57:21 +0900 |
| commit | 1031a3a57ed76f5cb8754a89ddb22f3d9ebe8861 (patch) | |
| tree | d96fa7501dcf7c74837e43a2bec084aea877eaec | |
| parent | 2bcfffa42309b6f73042c62459bf5207762a271d (diff) | |
| download | op-kernel-dev-1031a3a57ed76f5cb8754a89ddb22f3d9ebe8861.zip op-kernel-dev-1031a3a57ed76f5cb8754a89ddb22f3d9ebe8861.tar.gz | |
sh: Provide an __sdivsi3_2 export for sh64.
Newer code paths that are heavier in 64-bit math manage to get this
generated by newer compilers, provide a definition and export
accordingly. This is trivially wrapped around the existing __sdivsi3
code.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| -rw-r--r-- | arch/sh/kernel/sh_ksyms_64.c | 2 | ||||
| -rw-r--r-- | arch/sh/lib64/sdivsi3.S | 6 |
2 files changed, 7 insertions, 1 deletions
diff --git a/arch/sh/kernel/sh_ksyms_64.c b/arch/sh/kernel/sh_ksyms_64.c index 0d74d6b..8f54ef0 100644 --- a/arch/sh/kernel/sh_ksyms_64.c +++ b/arch/sh/kernel/sh_ksyms_64.c @@ -76,5 +76,7 @@ EXPORT_SYMBOL(strcpy); #define DECLARE_EXPORT(name) extern void name(void);EXPORT_SYMBOL(name) DECLARE_EXPORT(__sdivsi3); +DECLARE_EXPORT(__sdivsi3_1); +DECLARE_EXPORT(__sdivsi3_2); DECLARE_EXPORT(__udivsi3); DECLARE_EXPORT(__div_table); diff --git a/arch/sh/lib64/sdivsi3.S b/arch/sh/lib64/sdivsi3.S index 6a800c6..1963bbd 100644 --- a/arch/sh/lib64/sdivsi3.S +++ b/arch/sh/lib64/sdivsi3.S @@ -1,4 +1,6 @@ .global __sdivsi3 + .global __sdivsi3_1 + .global __sdivsi3_2 .section .text..SHmedia32,"ax" .align 2 @@ -6,13 +8,15 @@ /* clobbered: r1,r18,r19,r20,r21,r25,tr0 */ /* result in r0 */ __sdivsi3: +__sdivsi3_1: ptb __div_table,tr0 + gettr tr0,r20 +__sdivsi3_2: nsb r5, r1 shlld r5, r1, r25 /* normalize; [-2 ..1, 1..2) in s2.62 */ shari r25, 58, r21 /* extract 5(6) bit index (s2.4 with hole -1..1) */ /* bubble */ - gettr tr0,r20 ldx.ub r20, r21, r19 /* u0.8 */ shari r25, 32, r25 /* normalize to s2.30 */ shlli r21, 1, r21 |
