linux-stable.git/arch/sparc/kernel/Makefile, branch linux-3.7.y

sparc32,leon: always include leon_pmc in build

2012-05-28T06:52:53+00:00

Signed-off-by: Sam Ravnborg 
Cc: Daniel Hellstrom 
Cc: Konrad Eisele

sparc32,leon: always include leon_kernel in build

2012-05-28T06:52:46+00:00

Signed-off-by: Sam Ravnborg 
Cc: Daniel Hellstrom 
Cc: Konrad Eisele

Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2012-05-22T02:43:57+00:00

Pull smp hotplug cleanups from Thomas Gleixner:
 "This series is merily a cleanup of code copied around in arch/* and
  not changing any of the real cpu hotplug horrors yet.  I wish I'd had
  something more substantial for 3.5, but I underestimated the lurking
  horror..."

Fix up trivial conflicts in arch/{arm,sparc,x86}/Kconfig and
arch/sparc/include/asm/thread_info_32.h

* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits)
  um: Remove leftover declaration of alloc_task_struct_node()
  task_allocator: Use config switches instead of magic defines
  sparc: Use common threadinfo allocator
  score: Use common threadinfo allocator
  sh-use-common-threadinfo-allocator
  mn10300: Use common threadinfo allocator
  powerpc: Use common threadinfo allocator
  mips: Use common threadinfo allocator
  hexagon: Use common threadinfo allocator
  m32r: Use common threadinfo allocator
  frv: Use common threadinfo allocator
  cris: Use common threadinfo allocator
  x86: Use common threadinfo allocator
  c6x: Use common threadinfo allocator
  fork: Provide kmemcache based thread_info allocator
  tile: Use common threadinfo allocator
  fork: Provide weak arch_release_[task_struct|thread_info] functions
  fork: Move thread info gfp flags to header
  fork: Remove the weak insanity
  sh: Remove cpu_idle_wait()
  ...

sparc32: delete muldiv.o from Makefile

2012-05-15T19:44:11+00:00

The source file is no more..

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc32: drop sun4c support

2012-05-12T02:27:44+00:00

Machines with sun4c support are very rare these days, and noone
is using them for any practical purposes.
The sun4c support has been know broken for quite some time too.

So rather than trying to keep it up-to-date, lets get rid of it.
This allows us to do some very welcome cleanup of sparc32 support.

Updated the former sun4c specifc nmi (which was also used
for sun4m UP) to be a generic UP NMI.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc: Use generic init_task

2012-05-05T11:00:25+00:00

Same code. Use the generic version.

Signed-off-by: Thomas Gleixner 
Acked-by: "David S. Miller" 
Acked-by: Sam Ravnborg 
Link: http://lkml.kernel.org/r/20120503085035.463573011@linutronix.de

sparc: Allow handling signals when stack is corrupted.

2011-08-21T00:14:54+00:00

If we can't push the pending register windows onto the user's stack,
we disallow signal delivery even if the signal would be delivered on a
valid seperate signal stack.

Add a register window save area in the signal frame, and store any
unsavable windows there.

On sigreturn, if any windows are still queued up in the signal frame,
try to push them back onto the stack and if that fails we kill the
process immediately.

This allows the debug/tst-longjmp_chk2 glibc test case to pass.

Signed-off-by: David S. Miller

sparc32,leon: add GRPCI2 PCI Host driver

2011-06-02T21:32:38+00:00

The DMA region must be accessible in order for PCI peripheral
drivers to work, the sparc32 has DMA in the normal memory
zone which requires the GRPCI2 to PCI target BARs so that all
kernel low mem (192MB) can be mapped 1:1 to PCI address
space. The GRPCI2 has resizeable target BARs, by default the
first is made 256MB and all other BARs are disabled.

I/O space are always located on 0x1000-0x10000, but accessed
through the GRPCI2 PCI I/O Window memory mapped to virtual
address space.

Configuration space is accessed through the 64KB GRPCI2 PCI
CFG Window using LDA bypassing the MMU.

The GRPCI2 has a single PCI Window for prefetchable and non-
prefetchable address space, it is up to the AHB master
requesting PCI data to determine access type. Memory space
is mapped 1:1.

The GRPCI2 core can be configured in 4 different IRQ modes,
where PCI Interrupt, Error Interrupt and DMA Interrupt are
shared on a single IRQ line or at most 5 IRQs are used. The
GRPCI2 can mask/unmask PCI interrupts, Err and DMA in the control
and check status bits which tells us which IRQ really happended.
The GENIRQ layer is used to unmask/mask each individual IRQ
source by creating virtual IRQs and implementing a IRQ chip.

The optional DMA functionality of the GRPCI2 is not supported
by this patch.

Signed-off-by: Daniel Hellstrom 
Signed-off-by: David S. Miller

sparc32,leon: added LEON-common low-level PCI routines

2011-06-02T21:32:37+00:00

The LEON architecture does not have a BIOS or bootloader that
initializes PCI for us, instead Linux generic PCI layer is used
to set up resources and IRQ.

Signed-off-by: Daniel Hellstrom 
Signed-off-by: David S. Miller

sparc32: added CONFIG_PCIC_PCI Kconfig setting

2011-06-02T21:32:37+00:00

Signed-off-by: Daniel Hellstrom 
Signed-off-by: David S. Miller