1. 01 Jul, 2006 1 commit
  2. 30 Jun, 2006 1 commit
  3. 29 Jun, 2006 17 commits
  4. 28 Apr, 2006 1 commit
  5. 26 Mar, 2006 1 commit
  6. 25 Mar, 2006 1 commit
  7. 06 Jan, 2006 1 commit
  8. 23 Nov, 2005 1 commit
  9. 07 Nov, 2005 1 commit
  10. 07 Sep, 2005 1 commit
    • Ashok Raj's avatar
      [PATCH] x86/x86_64: deferred handling of writes to /proc/irqxx/smp_affinity · 54d5d424
      Ashok Raj authored
      
      
      When handling writes to /proc/irq, current code is re-programming rte
      entries directly. This is not recommended and could potentially cause
      chipset's to lockup, or cause missing interrupts.
      
      CONFIG_IRQ_BALANCE does this correctly, where it re-programs only when the
      interrupt is pending. The same needs to be done for /proc/irq handling as well.
      Otherwise user space irq balancers are really not doing the right thing.
      
      - Changed pending_irq_balance_cpumask to pending_irq_migrate_cpumask for
        lack of a generic name.
      - added move_irq out of IRQ_BALANCE, and added this same to X86_64
      - Added new proc handler for write, so we can do deferred write at irq
        handling time.
      - Display of /proc/irq/XX/smp_affinity used to display CPU_MASKALL, instead
        it now shows only active cpu masks, or exactly what was set.
      - Provided a common move_irq implementation, instead of duplicating
        when using generic irq framework.
      
      Tested on i386/x86_64 and ia64 with CONFIG_PCI_MSI turned on and off.
      Tested UP builds as well.
      
      MSI testing: tbd: I have cards, need to look for a x-over cable, although I
      did test an earlier version of this patch.  Will test in a couple days.
      
      Signed-off-by: default avatarAshok Raj <ashok.raj@intel.com>
      Acked-by: default avatarZwane Mwaikambo <zwane@holomorphy.com>
      Grudgingly-acked-by: default avatarAndi Kleen <ak@muc.de>
      Signed-off-by: default avatarCoywolf Qi Hunt <coywolf@lovecn.org>
      Signed-off-by: default avatarAshok Raj <ashok.raj@intel.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      54d5d424
  11. 22 Jun, 2005 2 commits
    • Paolo 'Blaisorblade' Giarrusso's avatar
      [PATCH] uml: make hw_controller_type->release exist only for archs needing it · b77d6adc
      Paolo 'Blaisorblade' Giarrusso authored
      
      
      With Chris Wedgwood <cw@f00f.org>
      
      As suggested by Chris, we can make the "just added" method ->release
      conditional to UML only (better: to archs requesting it, i.e.  only UML
      currently), so that other archs don't get this unneeded crud, and if UML
      won't need it any more we can kill this.
      
      Signed-off-by: default avatarPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
      CC: Ingo Molnar <mingo@redhat.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      b77d6adc
    • Paolo 'Blaisorblade' Giarrusso's avatar
      [PATCH] uml: add and use generic hw_controller_type->release · dbce706e
      Paolo 'Blaisorblade' Giarrusso authored
      
      
      With Chris Wedgwood <cw@f00f.org>
      
      Currently UML must explicitly call the UML-specific
      free_irq_by_irq_and_dev() for each free_irq call it's done.
      
      This is needed because ->shutdown and/or ->disable are only called when the
      last "action" for that irq is removed.
      
      Instead, for UML shared IRQs (UML IRQs are very often, if not always,
      shared), for each dev_id some setup is done, which must be cleared on the
      release of that fd.  For instance, for each open console a new instance
      (i.e.  new dev_id) of the same IRQ is requested().
      
      Exactly, a fd is stored in an array (pollfds), which is after read by a
      host thread and passed to poll().  Each event registered by poll() triggers
      an interrupt.  So, for each free_irq() we must remove the corresponding
      host fd from the table, which we do via this -release() method.
      
      In this patch we add an appropriate hook for this, and remove all uses of
      it by pointing the hook to the said procedure; this is safe to do since the
      said procedure.
      
      Also some cosmetic improvements are included.
      
      This is heavily based on some work by Chris Wedgwood, which however didn't
      get the patch merged for something I'd call a "misunderstanding" (the need
      for this patch wasn't cleanly explained, thus adding the generic hook was
      felt as undesirable).
      
      Signed-off-by: default avatarPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
      CC: Ingo Molnar <mingo@redhat.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      dbce706e
  12. 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