mirror of
https://github.com/torvalds/linux.git
synced 2024-11-07 12:41:55 +00:00
a439fe51a1
The majority of this patch was created by the following script: *** ASM=arch/sparc/include/asm mkdir -p $ASM git mv include/asm-sparc64/ftrace.h $ASM git rm include/asm-sparc64/* git mv include/asm-sparc/* $ASM sed -ie 's/asm-sparc64/asm/g' $ASM/* sed -ie 's/asm-sparc/asm/g' $ASM/* *** The rest was an update of the top-level Makefile to use sparc for header files when sparc64 is being build. And a small fixlet to pick up the correct unistd.h from sparc64 code. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
23 lines
777 B
C
23 lines
777 B
C
#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
|
|
#define PIL_SMP_CALL_FUNC_SNGL 6
|
|
|
|
#endif /* !(_SPARC64_PIL_H) */
|