/* * s3c24xx-i2s.c -- ALSA Soc Audio Layer * * Copyright 2005 Wolfson Microelectronics PLC. * Author: Graeme Gregory * graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * Revision history * 10th Nov 2006 Initial version. */ #ifndef S3C24XXI2S_H_ #define S3C24XXI2S_H_ /* clock sources */ #define S3C24XX_CLKSRC_PCLK 0 #define S3C24XX_CLKSRC_MPLL 1 /* Clock dividers */ #define S3C24XX_DIV_MCLK 0 #define S3C24XX_DIV_BCLK 1 #define S3C24XX_DIV_PRESCALER 2 /* prescaler */ #define S3C24XX_PRESCALE(a,b) \ (((a - 1) << S3C2410_IISPSR_INTSHIFT) | ((b - 1) << S3C2410_IISPSR_EXTSHFIT)) u32 s3c24xx_i2s_get_clockrate(void); #endif /*S3C24XXI2S_H_*/ me='id' value='79c6f448c8b79c321e4a1f31f98194e4f6b6cae7'/> net-next plumbingsTobias Klauser
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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-30 19:27:10 -0500
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2017-01-31 09:13:49 -0500
commit79c6f448c8b79c321e4a1f31f98194e4f6b6cae7 (patch)
tree370efda701f03cccf21e02bb1fdd3b852547d75c /tools/perf/Documentation/perf.txt
parent0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff)
tracing: Fix hwlat kthread migration
The hwlat tracer creates a kernel thread at start of the tracer. It is pinned to a single CPU and will move to the next CPU after each period of running. If the user modifies the migration thread's affinity, it will not change after that happens. The original code created the thread at the first instance it was called, but later was changed to destroy the thread after the tracer was finished, and would not be created until the next instance of the tracer was established. The code that initialized the affinity was only called on the initial instantiation of the tracer. After that, it was not initialized, and the previous affinity did not match the current newly created one, making it appear that the user modified the thread's affinity when it did not, and the thread failed to migrate again. Cc: stable@vger.kernel.org Fixes: 0330f7aa8ee6 ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs") Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools/perf/Documentation/perf.txt')