hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

metag: Remove TIF_POLLING_NRFLAG 

The Meta idle function jumps into the interrupt handler which
efficiently blocks waiting for the next interrupt when it reads the
interrupt status register (TXSTATI). No other (polling) idle functions
can be used, therefore TIF_POLLING_NRFLAG is unnecessary, so lets remove
it.

Peter Zijlstra said:
> Most archs have (x86) hlt or (arm) wfi like idle instructions, and if
> that is your only possible idle function, you'll require the interrupt
> to wake up and there's really no point to having the POLLING bit.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/536CEB7E.9080007@imgtec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
James Hogan 2014-05-09 15:36:21 +01:00 committed by Ingo Molnar
parent 08c373e512
commit 31e6cdefd3
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/metag/include/asm/thread_info.h
View File

@ -117,10 +117,8 @@ static inline int kstack_end(void *addr)
#define TIF_SECCOMP 5 /* secure computing */
#define TIF_RESTORE_SIGMASK 6 /* restore signal mask in do_signal() */
#define TIF_NOTIFY_RESUME 7 /* callback before returning to user */
#define TIF_POLLING_NRFLAG 8 /* true if poll_idle() is polling
TIF_NEED_RESCHED */
#define TIF_MEMDIE 9 /* is terminating due to OOM killer */
#define TIF_SYSCALL_TRACEPOINT 10 /* syscall tracepoint instrumentation */
#define TIF_MEMDIE 8 /* is terminating due to OOM killer */
#define TIF_SYSCALL_TRACEPOINT 9 /* syscall tracepoint instrumentation */
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)