aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-sparc/pil.h
diff options
context:
space:
mode:
authorSam Ravnborg <sam@ravnborg.org>2008-06-19 14:26:19 -0400
committerDavid S. Miller <davem@davemloft.net>2008-07-18 00:44:53 -0400
commita00736e936c2a1e9c36f22f6f3a69392eaab51f4 (patch)
tree4fd3d203dbc30d50a1b0c1acce2957e082a75173 /include/asm-sparc/pil.h
parentbdc3135ac99efd59de084a309751ec76887e62d8 (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.h21
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 000000000000..eaac842d88c3
--- /dev/null
+++ b/include/asm-sparc/pil.h
@@ -0,0 +1,21 @@
1#ifndef _SPARC64_PIL_H
2#define _SPARC64_PIL_H
3
4/* To avoid some locking problems, we hard allocate certain PILs
5 * for SMP cross call messages that must do a etrap/rtrap.
6 *
7 * A local_irq_disable() does not block the cross call delivery, so
8 * when SMP locking is an issue we reschedule the event into a PIL
9 * interrupt which is blocked by local_irq_disable().
10 *
11 * In fact any XCALL which has to etrap/rtrap has a problem because
12 * it is difficult to prevent rtrap from running BH's, and that would
13 * need to be done if the XCALL arrived while %pil==15.
14 */
15#define PIL_SMP_CALL_FUNC 1
16#define PIL_SMP_RECEIVE_SIGNAL 2
17#define PIL_SMP_CAPTURE 3
18#define PIL_SMP_CTX_NEW_VERSION 4
19#define PIL_DEVICE_IRQ 5
20
21#endif /* !(_SPARC64_PIL_H) */