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* MIPS/Loongson-3: Convert oprofile to hotplug state machineRichard Cochran2016-07-15
| | | | | | | | | | | | | | | | | | | Install the callbacks via the state machine and let the core invoke the callbacks on the already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Richter <rric@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-mips@linux-mips.org Cc: oprofile-list@lists.sf.net Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153337.054827168@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
* MIPS: Loongson-3: Add oprofile supportHuacai Chen2014-11-24
Loongson-3 has two groups of performance counters, they are 4 sub- registers of CP0's REG25. This patch add oprofile support. REG25, sel 0: Perf Control of group 0; REG25, sel 1: Perf Counter of group 0; REG25, sel 2: Perf Control of group 1; REG25, sel 3: Perf Counter of group 1. Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: John Crispin <john@phrozen.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/8328/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>