diff options
author | Sam Ravnborg <sam@ravnborg.org> | 2008-06-19 20:26:19 +0200 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-07-17 21:44:53 -0700 |
commit | a00736e936c2a1e9c36f22f6f3a69392eaab51f4 (patch) | |
tree | 4fd3d203dbc30d50a1b0c1acce2957e082a75173 /include/asm-sparc/pil.h | |
parent | bdc3135ac99efd59de084a309751ec76887e62d8 (diff) |
sparc: copy sparc64 specific files to asm-sparc
Used the following script to copy the files:
cd include
set -e
SPARC64=`ls asm-sparc64`
for FILE in ${SPARC64}; do
if [ -f asm-sparc/$FILE ]; then
echo $FILE exist in asm-sparc
else
git mv asm-sparc64/$FILE asm-sparc/$FILE
printf "#include <asm-sparc/$FILE>\n" > asm-sparc64/$FILE
git add asm-sparc64/$FILE
fi
done
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'include/asm-sparc/pil.h')
-rw-r--r-- | include/asm-sparc/pil.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/asm-sparc/pil.h b/include/asm-sparc/pil.h new file mode 100644 index 00000000000..eaac842d88c --- /dev/null +++ b/include/asm-sparc/pil.h @@ -0,0 +1,21 @@ +#ifndef _SPARC64_PIL_H +#define _SPARC64_PIL_H + +/* To avoid some locking problems, we hard allocate certain PILs + * for SMP cross call messages that must do a etrap/rtrap. + * + * A local_irq_disable() does not block the cross call delivery, so + * when SMP locking is an issue we reschedule the event into a PIL + * interrupt which is blocked by local_irq_disable(). + * + * In fact any XCALL which has to etrap/rtrap has a problem because + * it is difficult to prevent rtrap from running BH's, and that would + * need to be done if the XCALL arrived while %pil==15. + */ +#define PIL_SMP_CALL_FUNC 1 +#define PIL_SMP_RECEIVE_SIGNAL 2 +#define PIL_SMP_CAPTURE 3 +#define PIL_SMP_CTX_NEW_VERSION 4 +#define PIL_DEVICE_IRQ 5 + +#endif /* !(_SPARC64_PIL_H) */ |