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| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-07 11:36:54 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-13 16:26:01 -0400 |
| commit | bc1a298f4e04833db4c430df59b90039f0170515 (patch) | |
| tree | 802da739309efeab62317f62ec4f1989f3f7d8dd /arch/tile/kernel/sys.c | |
| parent | 1182b69cb24c4f7d7ee8c8afe41b5ab2bc05a15b (diff) | |
| download | op-kernel-dev-bc1a298f4e04833db4c430df59b90039f0170515.zip op-kernel-dev-bc1a298f4e04833db4c430df59b90039f0170515.tar.gz | |
tile: support CONFIG_PREEMPT
This change adds support for CONFIG_PREEMPT (full kernel preemption).
In addition to the core support, this change includes a number
of places where we fix up uses of smp_processor_id() and per-cpu
variables. I also eliminate the PAGE_HOME_HERE and PAGE_HOME_UNKNOWN
values for page homing, as it turns out they weren't being used.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/kernel/sys.c')
| -rw-r--r-- | arch/tile/kernel/sys.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/tile/kernel/sys.c b/arch/tile/kernel/sys.c index b881a7be..38debe7 100644 --- a/arch/tile/kernel/sys.c +++ b/arch/tile/kernel/sys.c @@ -38,8 +38,10 @@ SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, len, unsigned long, flags) { + /* DCACHE is not particularly effective if not bound to one cpu. */ if (flags & DCACHE) - homecache_evict(cpumask_of(smp_processor_id())); + homecache_evict(cpumask_of(raw_smp_processor_id())); + if (flags & ICACHE) flush_remote(0, HV_FLUSH_EVICT_L1I, mm_cpumask(current->mm), 0, 0, 0, NULL, NULL, 0); |
