1. 06 2月, 2013 1 次提交
    • L
      ARM: 7635/1: versatile: fix the PCI IRQ regression · e3e92a7b
      Linus Walleij 提交于
      The PCI IRQs were regressing due to two things:
      
      - The PCI glue layer was using an hard-coded IRQ 27 offset.
        This caused the immediate regression.
      
      - The SIC IRQ mask was inverted (i.e. a bit was indeed set to
        one for each valid IRQ on the SIC, but accidentally inverted
        in the init call). This has been around forever, but we have
        been saved by some other forgiving code that would reserve
        IRQ descriptors in this range, as the versatile is
        non-sparse.
      
      When the IRQs were bumped up 32 steps so as to avoid using IRQ
      zero and avoid touching the 16 legacy IRQs, things broke.
      
      Introduce an explicit valid mask for the IRQs that are active
      on the PIC/SIC, and pass that. Use the BIT() macro from
      <linux/bitops.h> to make sure we hit the right bits, readily
      defined in <mach/platform.h>.
      Reported-by: NTetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
      Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
      Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      e3e92a7b
  2. 26 7月, 2012 1 次提交
  3. 05 7月, 2012 1 次提交
  4. 17 6月, 2012 1 次提交
    • A
      arm: versatile: fix and enable PCI I/O space · 9b0f7e39
      Arnd Bergmann 提交于
      With commit 4d5fc58d (ARM: remove bunch of now unused
      mach/io.h files), the I/O space setup was completely broken on
      versatile. This patch fixes that and prepares for further
      I/O space clean-up.
      
      I/O space handling on the versatile platform is currently
      broken in multiple ways. Most importantly, the ports do
      not get mapped into the virtual address space at all.
      
      Also, there is some amount of confusion between PCI I/O
      space and other statically mapped MMIO registers in the
      platform code:
      
      * The __io_address() macro that is used to access the
        platform register maps to the same __io macro that gets
        used for I/O space.
      
      * The IO_SPACE_LIMIT is set to a value that is much larger
        than the total available space.
      
      * The I/O resource of the PCI bus is set to the physical
        address of the mapping, which is way outside of the
        actual I/O space limit as well as the address range that
        gets decoded by traditional PCI cards.
      
      * No attempt is made to stay outside of the ISA port range
        that some device drivers try access.
      
      * No resource gets requested as a child of ioport_resource,
        but an IORESOURCE_IO type mapping gets requested
        as a child of iomem_resource.
      
      This patch attempts to correct all of the above. This makes
      it possible to use virtio-pci based virtual devices as well
      as actual PCI cards including those with legacy ISA port
      ranges like VGA.
      
      Some of the issues seem to be duplicated on other platforms.
      Signed-off-by: NArnd Bergmann <arnd@arndb.de>
      [rob: update to 3.5-rc2 and io.h cleanup related changes]
      Signed-off-by: NRob Herring <rob.herring@calxeda.com>
      Tested-by: NRobert Schwebel <r.schwebel@pengutronix.de>
      Signed-off-by: NOlof Johansson <olof@lixom.net>
      9b0f7e39
  5. 14 5月, 2012 3 次提交
  6. 03 4月, 2012 1 次提交
  7. 29 3月, 2012 1 次提交
  8. 24 2月, 2012 1 次提交
  9. 07 1月, 2012 1 次提交
  10. 22 7月, 2011 1 次提交
    • R
      PCI: Make the struct pci_dev * argument of pci_fixup_irqs const. · d5341942
      Ralf Baechle 提交于
      Aside of the usual motivation for constification,  this function has a
      history of being abused a hook for interrupt and other fixups so I turned
      this function const ages ago in the MIPS code but it should be done
      treewide.
      
      Due to function pointer passing in varous places a few other functions
      had to be constified as well.
      Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
      To: Anton Vorontsov <avorontsov@mvista.com>
      To: Chris Metcalf <cmetcalf@tilera.com>
      To: Colin Cross <ccross@android.com>
      Acked-by: N"David S. Miller" <davem@davemloft.net>
      To: Eric Miao <eric.y.miao@gmail.com>
      To: Erik Gilling <konkers@android.com>
      Acked-by: NGuan Xuetao <gxt@mprc.pku.edu.cn>
      To: "H. Peter Anvin" <hpa@zytor.com>
      To: Imre Kaloz <kaloz@openwrt.org>
      To: Ingo Molnar <mingo@redhat.com>
      To: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
      To: Jesse Barnes <jbarnes@virtuousgeek.org>
      To: Krzysztof Halasa <khc@pm.waw.pl>
      To: Lennert Buytenhek <kernel@wantstofly.org>
      To: Matt Turner <mattst88@gmail.com>
      To: Nicolas Pitre <nico@fluxnic.net>
      To: Olof Johansson <olof@lixom.net>
      Acked-by: NPaul Mundt <lethal@linux-sh.org>
      To: Richard Henderson <rth@twiddle.net>
      To: Russell King <linux@arm.linux.org.uk>
      To: Thomas Gleixner <tglx@linutronix.de>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: linux-alpha@vger.kernel.org
      Cc: linux-arm-kernel@lists.infradead.org
      Cc: linux-kernel@vger.kernel.org
      Cc: linux-mips@linux-mips.org
      Cc: linux-pci@vger.kernel.org
      Cc: linux-sh@vger.kernel.org
      Cc: linux-tegra@vger.kernel.org
      Cc: sparclinux@vger.kernel.org
      Cc: x86@kernel.org
      Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
      d5341942
  11. 13 7月, 2011 1 次提交
  12. 27 7月, 2010 1 次提交
  13. 30 3月, 2010 1 次提交
    • T
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking... · 5a0e3ad6
      Tejun Heo 提交于
      include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
      
      percpu.h is included by sched.h and module.h and thus ends up being
      included when building most .c files.  percpu.h includes slab.h which
      in turn includes gfp.h making everything defined by the two files
      universally available and complicating inclusion dependencies.
      
      percpu.h -> slab.h dependency is about to be removed.  Prepare for
      this change by updating users of gfp and slab facilities include those
      headers directly instead of assuming availability.  As this conversion
      needs to touch large number of source files, the following script is
      used as the basis of conversion.
      
        http://userweb.kernel.org/~tj/misc/slabh-sweep.py
      
      The script does the followings.
      
      * Scan files for gfp and slab usages and update includes such that
        only the necessary includes are there.  ie. if only gfp is used,
        gfp.h, if slab is used, slab.h.
      
      * When the script inserts a new include, it looks at the include
        blocks and try to put the new include such that its order conforms
        to its surrounding.  It's put in the include block which contains
        core kernel includes, in the same order that the rest are ordered -
        alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
        doesn't seem to be any matching order.
      
      * If the script can't find a place to put a new include (mostly
        because the file doesn't have fitting include block), it prints out
        an error message indicating which .h file needs to be added to the
        file.
      
      The conversion was done in the following steps.
      
      1. The initial automatic conversion of all .c files updated slightly
         over 4000 files, deleting around 700 includes and adding ~480 gfp.h
         and ~3000 slab.h inclusions.  The script emitted errors for ~400
         files.
      
      2. Each error was manually checked.  Some didn't need the inclusion,
         some needed manual addition while adding it to implementation .h or
         embedding .c file was more appropriate for others.  This step added
         inclusions to around 150 files.
      
      3. The script was run again and the output was compared to the edits
         from #2 to make sure no file was left behind.
      
      4. Several build tests were done and a couple of problems were fixed.
         e.g. lib/decompress_*.c used malloc/free() wrappers around slab
         APIs requiring slab.h to be added manually.
      
      5. The script was run on all .h files but without automatically
         editing them as sprinkling gfp.h and slab.h inclusions around .h
         files could easily lead to inclusion dependency hell.  Most gfp.h
         inclusion directives were ignored as stuff from gfp.h was usually
         wildly available and often used in preprocessor macros.  Each
         slab.h inclusion directive was examined and added manually as
         necessary.
      
      6. percpu.h was updated not to include slab.h.
      
      7. Build test were done on the following configurations and failures
         were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
         distributed build env didn't work with gcov compiles) and a few
         more options had to be turned off depending on archs to make things
         build (like ipr on powerpc/64 which failed due to missing writeq).
      
         * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
         * powerpc and powerpc64 SMP allmodconfig
         * sparc and sparc64 SMP allmodconfig
         * ia64 SMP allmodconfig
         * s390 SMP allmodconfig
         * alpha SMP allmodconfig
         * um on x86_64 SMP allmodconfig
      
      8. percpu.h modifications were reverted so that it could be applied as
         a separate patch and serve as bisection point.
      
      Given the fact that I had only a couple of failures from tests on step
      6, I'm fairly confident about the coverage of this conversion patch.
      If there is a breakage, it's likely to be something in one of the arch
      headers which should be easily discoverable easily on most builds of
      the specific arch.
      Signed-off-by: NTejun Heo <tj@kernel.org>
      Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
      5a0e3ad6
  14. 06 9月, 2008 1 次提交
  15. 07 8月, 2008 2 次提交
  16. 02 7月, 2007 1 次提交
  17. 22 4月, 2007 1 次提交
  18. 12 10月, 2006 1 次提交
  19. 27 9月, 2006 1 次提交
  20. 01 7月, 2006 1 次提交
  21. 23 2月, 2006 1 次提交
  22. 29 9月, 2005 1 次提交
  23. 21 6月, 2005 1 次提交