Searched hist:"9 edeaea1bc452372718837ed2ba775811baf1ba1" (Results 1 – 3 of 3) sorted by relevance
/openbmc/linux/kernel/ |
H A D | Kconfig.preempt | 9edeaea1bc452372718837ed2ba775811baf1ba1 Tue Nov 17 17:19:34 CST 2020 Peter Zijlstra <peterz@infradead.org> sched: Core-wide rq->lock
Introduce the basic infrastructure to have a core wide rq->lock.
This relies on the rq->__lock order being in increasing CPU number (inside a core). It is also constrained to SMT8 per lockdep (and SMT256 per preempt_count).
Luckily SMT8 is the max supported SMT count for Linux (Mips, Sparc and Power are known to have this).
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Don Hiatt <dhiatt@digitalocean.com> Tested-by: Hongyu Ning <hongyu.ning@linux.intel.com> Tested-by: Vincent Guittot <vincent.guittot@linaro.org> Link: https://lkml.kernel.org/r/YJUNfzSgptjX7tG6@hirez.programming.kicks-ass.net
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/openbmc/linux/kernel/sched/ |
H A D | sched.h | 9edeaea1bc452372718837ed2ba775811baf1ba1 Tue Nov 17 17:19:34 CST 2020 Peter Zijlstra <peterz@infradead.org> sched: Core-wide rq->lock
Introduce the basic infrastructure to have a core wide rq->lock.
This relies on the rq->__lock order being in increasing CPU number (inside a core). It is also constrained to SMT8 per lockdep (and SMT256 per preempt_count).
Luckily SMT8 is the max supported SMT count for Linux (Mips, Sparc and Power are known to have this).
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Don Hiatt <dhiatt@digitalocean.com> Tested-by: Hongyu Ning <hongyu.ning@linux.intel.com> Tested-by: Vincent Guittot <vincent.guittot@linaro.org> Link: https://lkml.kernel.org/r/YJUNfzSgptjX7tG6@hirez.programming.kicks-ass.net
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H A D | core.c | 9edeaea1bc452372718837ed2ba775811baf1ba1 Tue Nov 17 17:19:34 CST 2020 Peter Zijlstra <peterz@infradead.org> sched: Core-wide rq->lock
Introduce the basic infrastructure to have a core wide rq->lock.
This relies on the rq->__lock order being in increasing CPU number (inside a core). It is also constrained to SMT8 per lockdep (and SMT256 per preempt_count).
Luckily SMT8 is the max supported SMT count for Linux (Mips, Sparc and Power are known to have this).
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Don Hiatt <dhiatt@digitalocean.com> Tested-by: Hongyu Ning <hongyu.ning@linux.intel.com> Tested-by: Vincent Guittot <vincent.guittot@linaro.org> Link: https://lkml.kernel.org/r/YJUNfzSgptjX7tG6@hirez.programming.kicks-ass.net
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