linux-stable.git/arch/sparc/kernel/pcic.c, branch linux-3.3.y

sparc: add export.h to arch/sparc files as required

2011-10-31T23:30:52+00:00

These files are only exporting symbols, so they don't need
the full module.h header file.  Previously they were getting
access to EXPORT_SYMBOL implicitly via overuse of module.h
from within other .h files, but that is being cleaned up.

Signed-off-by: Paul Gortmaker

sparc: fix array bounds error setting up PCIC NMI trap

2011-08-19T04:47:40+00:00

  CC      arch/sparc/kernel/pcic.o
arch/sparc/kernel/pcic.c: In function 'pcic_probe':
arch/sparc/kernel/pcic.c:359:33: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:359:8: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:360:33: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:360:8: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:361:33: error: array subscript is above array bounds [-Werror=array-bounds]
arch/sparc/kernel/pcic.c:361:8: error: array subscript is above array bounds [-Werror=array-bounds]
cc1: all warnings being treated as errors

I'm not particularly familiar with sparc but t_nmi (defined in head_32.S via
the TRAP_ENTRY macro) and pcic_nmi_trap_patch (defined in entry.S) both appear
to be 4 instructions long and I presume from the usage that instructions are
int sized.

Signed-off-by: Ian Campbell 
Cc: "David S. Miller" 
Cc: sparclinux@vger.kernel.org
Reviewed-by: Sam Ravnborg 
Signed-off-by: David S. Miller

pci/of: Consolidate pci_device_to_OF_node()

2011-06-07T23:08:43+00:00

All archs do more or less the same thing now, move it into
a single generic place.

I chose pci.h rather than of_pci.h to avoid having to change
all call-sites to include the later.

Signed-off-by: Benjamin Herrenschmidt 
Acked-by: Michal Simek 
Acked-by: Grant Likely 
Acked-by: Jesse Barnes

sparc32: genirq support

2011-04-20T05:11:40+00:00

The conversion of sparc32 to genirq is based on original work done
by David S. Miller.
Daniel Hellstrom has helped in the conversion and implemented
the shutdowm functionality.
Marcel van Nies  has tested this on Sparc Station 20

Test status:
sun4c      - not tested
sun4m,pci  - not tested
sun4m,sbus - tested (Sparc Classic, Sparc Station 5, Sparc Station 20)
sun4d      - not tested
leon       - tested on various combinations of leon boards,
             including SMP variants

generic
   Introduce use of GENERIC_HARDIRQS and GENERIC_IRQ_SHOW
   Allocate 64 IRQs - which is enough even for SS2000
   Use a table of irq_bucket to maintain uses IRQs
      irq_bucket is also used to chain several irq's that
      must be called when the same intrrupt is asserted
   Use irq_link to link a interrupt source to the irq
   All plafforms must now supply their own build_device_irq method
   handler_irq rewriten to use generic irq support

floppy
   Read FLOPPY_IRQ from platform device
   Use generic request_irq to register the floppy interrupt
   Rewrote sparc_floppy_irq to use the generic irq support

pcic:
   Introduce irq_chip
   Store mask in chip_data for use in mask/unmask functions
   Add build_device_irq for pcic
   Use pcic_build_device_irq in pci_time_init
   allocate virtual irqs in pcic_fill_irq

sun4c:
   Introduce irq_chip
   Store mask in chip_data for use in mask/unmask functions
   Add build_device_irq for sun4c
   Use sun4c_build_device_irq in sun4c_init_timers

sun4m:
   Introduce irq_chip
   Introduce dedicated mask/unmask methods
   Introduce sun4m_handler_data that allow easy access to necessary
     data in the mask/unmask functions
   Add a helper method to enable profile_timer (used from smp)
   Added sun4m_build_device_irq
   Use sun4m_build_device_irq in sun4m_init_timers

   TODO:
      There is no replacement for smp_rotate that always scheduled
      next CPU as interrupt target upon an interrupt

sun4d:
   Introduce irq_chip
   Introduce dedicated mask/unmask methods
   Introduce sun4d_handler_data that allow easy access to
   necessary data in mask/unmask fuctions
   Rewrote sun4d_handler_irq to use generic irq support

   TODO:
      The original implmentation of enable/disable had:

          if (irq < NR_IRQS)
               return;

      The new implmentation does not distingush between SBUS and cpu
      interrupts.
      I am no sure what is right here. I assume we need to do
      something for the cpu interrupts.

      I have not succeeded booting my sun4d box (with or without this patch)
      and my understanding of this platfrom is limited.
      So I would be a bit suprised if this works.

leon:
   Introduce irq_chip
   Store mask in chip_data for use in mask/unmask functions
   Add build_device_irq for leon
   Use leon_build_device_irq in leon_init_timers

Signed-off-by: Sam Ravnborg 
Acked-by: Daniel Hellstrom 
Tested-by: Daniel Hellstrom 
Tested-by: Marcel van Nies 
Cc: Thomas Gleixner 
Signed-off-by: David S. Miller

sparc: Switch do_timer() to xtime_update()

2011-01-31T13:55:46+00:00

xtime_update() takes the xtime_lock itself.

pcic_clear_clock_irq() and clear_clock_irq do not need
to be protected by xtime_lock.

Signed-off-by: Torben Hohn 
Acked-by: David S. Miller 
Cc: Peter Zijlstra 
Cc: johnstul@us.ibm.com
Cc: hch@infradead.org
Cc: yong.zhang0@gmail.com
LKML-Reference: <20110127150022.23248.80369.stgit@localhost>
Signed-off-by: Thomas Gleixner

of/sparc: convert various prom_* functions to use phandle

2010-10-09T08:33:34+00:00

Rather than passing around ints everywhere, use the
phandle type where appropriate for the various functions
that talk to the PROM.

Signed-off-by: Andres Salomon 
Acked-by: David S. Miller 
Signed-off-by: Grant Likely

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6

2010-03-02T15:56:44+00:00

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6:
  sparc: Support show_unhandled_signals.
  sparc: use __ratelimit
  sunxvr500: Additional PCI id for sunxvr500 driver
  sparc: use asm-generic/scatterlist.h
  sparc64: If 'slot-names' property exist, create sysfs PCI slot information.
  sparc: remove trailing space in messages
  sparc: remove redundant return statements

resource/PCI: mark struct resource as const

2010-02-23T00:16:57+00:00

Now that we return the new resource start position, there is no
need to update "struct resource" inside the align function.
Therefore, mark the struct resource as const.

Cc: Bjorn Helgaas 
Cc: Yinghai Lu 
Signed-off-by: Dominik Brodowski 
Signed-off-by: Jesse Barnes

resource/PCI: align functions now return start of resource

2010-02-23T00:16:56+00:00

As suggested by Linus, align functions should return the start
of a resource, not void. An update of "res->start" is no longer
necessary.

Cc: Bjorn Helgaas 
Cc: Yinghai Lu 
Signed-off-by: Dominik Brodowski 
Signed-off-by: Jesse Barnes

sparc: remove redundant return statements

2010-02-10T19:47:57+00:00

Signed-off-by: Jan Engelhardt 
Signed-off-by: David S. Miller