1. 20 Mar, 2018 1 commit
  2. 15 Apr, 2017 1 commit
    • Thomas Gleixner's avatar
      cpufreq/sparc-us2e: Replace racy task affinity logic · 12699ac5
      Thomas Gleixner authored
      The access to the HBIRD_ESTAR_MODE register in the cpu frequency control
      functions must happen on the target CPU. This is achieved by temporarily
      setting the affinity of the calling user space thread to the requested CPU
      and reset it to the original affinity afterwards.
      
      That's racy vs. CPU hotplug and concurrent affinity settings for that
      thread resulting in code executing on the wrong CPU and overwriting the
      new affinity setting.
      
      Replace it by a straight forward smp function call. 
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
      Cc: Fenghua Yu <fenghua.yu@intel.com>
      Cc: Tony Luck <tony.luck@intel.com>
      Cc: Herbert Xu <herbert@gondor.apana.org.au>
      Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
      Cc: Sebastian Siewior <bigeasy@linutronix.de>
      Cc: linux-pm@vger.kernel.org
      Cc: Lai Jiangshan <jiangshanlai@gmail.com>
      Cc: Michael Ellerman <mpe@ellerman.id.au>
      Cc: Tejun Heo <tj@kernel.org>
      Cc: "David S. Miller" <davem@davemloft.net>
      Cc: Len Brown <lenb@kernel.org>
      Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1704131020280.2408@nanosSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      12699ac5
  3. 02 Mar, 2017 1 commit
    • Ingo Molnar's avatar
      sched/core: Remove the tsk_cpus_allowed() wrapper · 0c98d344
      Ingo Molnar authored
      So the original intention of tsk_cpus_allowed() was to 'future-proof'
      the field - but it's pretty ineffectual at that, because half of
      the code uses ->cpus_allowed directly ...
      
      Also, the wrapper makes the code longer than the original expression!
      
      So just get rid of it. This also shrinks <linux/sched.h> a bit.
      Acked-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      Cc: Mike Galbraith <efault@gmx.de>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: linux-kernel@vger.kernel.org
      Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
      0c98d344
  4. 12 Mar, 2014 1 commit
  5. 30 Oct, 2013 1 commit
  6. 25 Oct, 2013 1 commit
    • Viresh Kumar's avatar
      cpufreq: Implement light weight ->target_index() routine · 9c0ebcf7
      Viresh Kumar authored
      Currently, the prototype of cpufreq_drivers target routines is:
      
      int target(struct cpufreq_policy *policy, unsigned int target_freq,
      		unsigned int relation);
      
      And most of the drivers call cpufreq_frequency_table_target() to get a valid
      index of their frequency table which is closest to the target_freq. And they
      don't use target_freq and relation after that.
      
      So, it makes sense to just do this work in cpufreq core before calling
      cpufreq_frequency_table_target() and simply pass index instead. But this can be
      done only with drivers which expose their frequency table with cpufreq core. For
      others we need to stick with the old prototype of target() until those drivers
      are converted to expose frequency tables.
      
      This patch implements the new light weight prototype for target_index() routine.
      It looks like this:
      
      int target_index(struct cpufreq_policy *policy, unsigned int index);
      
      CPUFreq core will call cpufreq_frequency_table_target() before calling this
      routine and pass index to it. Because CPUFreq core now requires to call routines
      present in freq_table.c CONFIG_CPU_FREQ_TABLE must be enabled all the time.
      
      This also marks target() interface as deprecated. So, that new drivers avoid
      using it. And Documentation is updated accordingly.
      
      It also converts existing .target() to newly defined light weight
      .target_index() routine for many driver.
      Acked-by: default avatarHans-Christian Egtvedt <egtvedt@samfundet.no>
      Acked-by: default avatarJesper Nilsson <jesper.nilsson@axis.com>
      Acked-by: Linus Walleij's avatarLinus Walleij <linus.walleij@linaro.org>
      Acked-by: default avatarRussell King <linux@arm.linux.org.uk>
      Acked-by: default avatarDavid S. Miller <davem@davemloft.net>
      Tested-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
      Signed-off-by: default avatarRafael J. Wysocki <rjw@rjwysocki.net>
      9c0ebcf7
  7. 15 Oct, 2013 1 commit
  8. 30 Sep, 2013 2 commits
  9. 10 Aug, 2013 1 commit
  10. 07 Aug, 2013 1 commit
  11. 04 Jun, 2013 1 commit
  12. 10 Apr, 2013 1 commit
  13. 02 Apr, 2013 2 commits
  14. 07 Jun, 2011 1 commit
  15. 16 May, 2011 1 commit
  16. 28 Mar, 2010 1 commit
  17. 04 Dec, 2008 1 commit
    • Sam Ravnborg's avatar
      sparc,sparc64: unify kernel/ · a88b5ba8
      Sam Ravnborg authored
      o Move all files from sparc64/kernel/ to sparc/kernel
        - rename as appropriate
      o Update sparc/Makefile to the changes
      o Update sparc/kernel/Makefile to include the sparc64 files
      
      NOTE: This commit changes link order on sparc64!
      
      Link order had to change for either of sparc32 and sparc64.
      And assuming sparc64 see more testing than sparc32 change link
      order on sparc64 where issues will be caught faster.
      Signed-off-by: Sam Ravnborg's avatarSam Ravnborg <sam@ravnborg.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a88b5ba8
  18. 04 Oct, 2007 1 commit
  19. 20 Mar, 2006 2 commits
  20. 07 Nov, 2005 1 commit
  21. 18 Aug, 2005 1 commit
  22. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4