linux-toradex.git/arch/arm/vfp, branch v3.0.2

ARM: Use struct syscore_ops instead of sysdevs for PM in common code

2011-04-24T17:16:08+00:00

Convert some ARM architecture's common code to using
struct syscore_ops objects for power management instead of sysdev
classes and sysdevs.

This simplifies the code and reduces the kernel's memory footprint.
It also is necessary for removing sysdevs from the kernel entirely in
the future.

Signed-off-by: Rafael J. Wysocki 
Acked-by: Greg Kroah-Hartman

ARM: 6868/1: Preserve the VFP state during fork

2011-04-10T20:13:37+00:00

VFP registers d16-d31 are callee saved registers and must be preserved
during function calls, including fork(). The VFP configuration should
also be preserved. The patch copies the full VFP state to the child
process.

Reported-by: Paul Wright 
Signed-off-by: Catalin Marinas 
Signed-off-by: Russell King

ARM: 6867/1: Introduce THREAD_NOTIFY_COPY for copy_thread() hooks

2011-04-10T20:13:36+00:00

This patch adds THREAD_NOTIFY_COPY for calling registered handlers
during the copy_thread() function call. It also changes the VFP handler
to use a switch statement rather than if..else and ignore this event.

Signed-off-by: Catalin Marinas 
Signed-off-by: Russell King

Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6

2011-03-21T01:14:55+00:00

* 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (25 commits)
  video: change to new flag variable
  scsi: change to new flag variable
  rtc: change to new flag variable
  rapidio: change to new flag variable
  pps: change to new flag variable
  net: change to new flag variable
  misc: change to new flag variable
  message: change to new flag variable
  memstick: change to new flag variable
  isdn: change to new flag variable
  ieee802154: change to new flag variable
  ide: change to new flag variable
  hwmon: change to new flag variable
  dma: change to new flag variable
  char: change to new flag variable
  fs: change to new flag variable
  xtensa: change to new flag variable
  um: change to new flag variables
  s390: change to new flag variable
  mips: change to new flag variable
  ...

Fix up trivial conflict in drivers/hwmon/Makefile

arm: change to new flag variables

2011-03-17T13:02:55+00:00

Replace EXTRA_CFLAGS with ccflags-y and EXTRA_AFLAGS with asflags-y.

Signed-off-by: matt mooney 
Acked-by: WANG Cong 
Signed-off-by: Michal Marek

ARM: vfp: improve commentry for hotplug events

2011-02-23T17:24:18+00:00

Improve the documentation for the VFP hotplug notifier handler, so
that people better understand what's going on there and what has
been done for them.

Signed-off-by: Russell King

ARM: fix some sparse errors in generic ARM code

2011-02-23T17:24:12+00:00

arch/arm/kernel/return_address.c:37:6: warning: symbol 'return_address' was not declared. Should it be static?
arch/arm/kernel/setup.c:76:14: warning: symbol 'processor_id' was not declared. Should it be static?
arch/arm/kernel/traps.c:259:1: warning: symbol 'die_lock' was not declared. Should it be static?
arch/arm/vfp/vfpmodule.c:156:6: warning: symbol 'vfp_raise_sigfpe' was not declared. Should it be static?

Signed-off-by: Russell King

Merge branch 'misc' into devel

2011-01-06T22:32:52+00:00

Conflicts:
	arch/arm/Kconfig
	arch/arm/common/Makefile
	arch/arm/kernel/Makefile
	arch/arm/kernel/smp.c

ARM: VFP: re-initialize VFP coprocessor access enables on CPU hotplug

2010-12-20T15:09:13+00:00

We can not guarantee that VFP will be enabled when CPU hotplug brings
a CPU back online from a reset state.  Add a hotplug CPU notifier to
ensure that the VFP coprocessor access is enabled whenever a CPU comes
back online.

Signed-off-by: Russell King

ARM: 6498/1: vfp: Correct data alignment for CONFIG_THUMB2_KERNEL

2010-11-30T13:44:23+00:00

Directives such as .long and .word do not magically cause the
assembler location counter to become aligned in gas.  As a result,
using these directives in code sections can result in misaligned
data words when building a Thumb-2 kernel (CONFIG_THUMB2_KERNEL).

This is a Bad Thing, since the ABI permits the compiler to assume
that fundamental types of word size or above are word- aligned when
accessing them from C.  If the data is not really word-aligned,
this can cause impaired performance and stray alignment faults in
some circumstances.

In general, the following rules should be applied when using data
word declaration directives inside code sections:

    * .quad and .double:
         .align 3

    * .long, .word, .single, .float:
         .align (or .align 2)

    * .short:
        No explicit alignment required, since Thumb-2
        instructions are always 2 or 4 bytes in size.
        immediately after an instruction.

Reviewed-by: Will Deacon 
Signed-off-by: Dave Martin 
Acked-by: Catalin Marinas 
Signed-off-by: Russell King