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authorDavid S. Miller <davem@sunset.davemloft.net>2006-03-07 01:50:44 -0500
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 04:14:21 -0500
commitee29074d3bd23848905f52c515974e0cd0219faa (patch)
treed5306446b2e26d9e45f65467b4f3b3f3b0c8494c /include/asm-sparc64
parenta77754b4d0731321db266c6c60ffcd7c62757da5 (diff)
[SPARC64]: Fix new context version SMP handling.
Don't piggy back the SMP receive signal code to do the context version change handling. Instead allocate another fixed PIL number for this asynchronous cross-call. We can't use smp_call_function() because this thing is invoked with interrupts disabled and a few spinlocks held. Also, fix smp_call_function_mask() to count "cpus" correctly. There is no guarentee that the local cpu is in the mask yet that is exactly what this code was assuming. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64')
-rw-r--r--include/asm-sparc64/pil.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/asm-sparc64/pil.h b/include/asm-sparc64/pil.h
index 8f87750c3517..79f827eb3f5d 100644
--- a/include/asm-sparc64/pil.h
+++ b/include/asm-sparc64/pil.h
@@ -16,11 +16,13 @@
16#define PIL_SMP_CALL_FUNC 1 16#define PIL_SMP_CALL_FUNC 1
17#define PIL_SMP_RECEIVE_SIGNAL 2 17#define PIL_SMP_RECEIVE_SIGNAL 2
18#define PIL_SMP_CAPTURE 3 18#define PIL_SMP_CAPTURE 3
19#define PIL_SMP_CTX_NEW_VERSION 4
19 20
20#ifndef __ASSEMBLY__ 21#ifndef __ASSEMBLY__
21#define PIL_RESERVED(PIL) ((PIL) == PIL_SMP_CALL_FUNC || \ 22#define PIL_RESERVED(PIL) ((PIL) == PIL_SMP_CALL_FUNC || \
22 (PIL) == PIL_SMP_RECEIVE_SIGNAL || \ 23 (PIL) == PIL_SMP_RECEIVE_SIGNAL || \
23 (PIL) == PIL_SMP_CAPTURE) 24 (PIL) == PIL_SMP_CAPTURE || \
25 (PIL) == PIL_SMP_CTX_NEW_VERSION)
24#endif 26#endif
25 27
26#endif /* !(_SPARC64_PIL_H) */ 28#endif /* !(_SPARC64_PIL_H) */