linux-toradex.git/arch/microblaze, branch v3.2.51

microblaze: Fix __futex_atomic_op macro register usage

2013-09-10T00:57:39+00:00

commit 8cf662ed3ef190fddc186bb5b1cd75eb3880d5a9 upstream.

Old Microblaze toolchain supported "b" contstrains for
all register but it always points to general purpose reg.
New Microblaze toolchain is more strict in this
and general purpose register should be used there "r".

Signed-off-by: Michal Simek 
Signed-off-by: Ben Hutchings

microblaze: Update microblaze defconfigs

2013-09-10T00:57:30+00:00

commit d0e045401f268a8de6f87d65678214748b772680 upstream.

The main reason is 0-day testing system which can directly
use these defconfigs for testing.

Enable support for all xilinx drivers which Microblaze
can use and disable dependency on external rootfs.cpio.
There is only one exception which is axi ethernet driver
which still uses NO_IRQ which is not defined for Microblaze.

Signed-off-by: Michal Simek 
Cc: Guenter Roeck 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Ben Hutchings

microblaze: Do not select GENERIC_GPIO by default

2012-06-10T13:41:39+00:00

commit 59516b07b4ffa7e607a5787674ea3c405f1b390c upstream.

The microblaze architecture does not provide a native GPIO API implementation
nor requires GPIOLIB, but still selects GENERIC_GPIO by default. As a result the
following build error occurs, if GPIOLIB is not selected:

	include/asm-generic/gpio.h: In function 'gpio_get_value_cansleep':
	include/asm-generic/gpio.h:218: error: implicit declaration of function '__gpio_get_value'
	include/asm-generic/gpio.h: In function 'gpio_set_value_cansleep':
	include/asm-generic/gpio.h:224: error: implicit declaration of function '__gpio_set_value'

This patch addresses the issue by not selecting GENERIC_GPIO by default. This
causes the GPIO API to be stubbed out if no implementation is provided.

Signed-off-by: Lars-Peter Clausen 
Tested-by: Michal Simek 
Signed-off-by: Ben Hutchings

microblaze: bury asm/namei.h

2011-11-21T21:48:28+00:00

altroot support has been gone for years, along with arch/*/asm/namei.h;
looks like a dummy survivor that sat it out in microblaze tree...

Signed-off-by: Al Viro

Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

2011-11-07T03:44:47+00:00

* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
  Revert "tracing: Include module.h in define_trace.h"
  irq: don't put module.h into irq.h for tracking irqgen modules.
  bluetooth: macroize two small inlines to avoid module.h
  ip_vs.h: fix implicit use of module_get/module_put from module.h
  nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
  include: replace linux/module.h with "struct module" wherever possible
  include: convert various register fcns to macros to avoid include chaining
  crypto.h: remove unused crypto_tfm_alg_modname() inline
  uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
  pm_runtime.h: explicitly requires notifier.h
  linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
  miscdevice.h: fix up implicit use of lists and types
  stop_machine.h: fix implicit use of smp.h for smp_processor_id
  of: fix implicit use of errno.h in include/linux/of.h
  of_platform.h: delete needless include 
  acpi: remove module.h include from platform/aclinux.h
  miscdevice.h: delete unnecessary inclusion of module.h
  device_cgroup.h: delete needless include 
  net: sch_generic remove redundant use of 
  net: inet_timewait_sock doesnt need 
  ...

Fix up trivial conflicts (other header files, and  removal of the ab3550 mfd driver) in
 - drivers/media/dvb/frontends/dibx000_common.c
 - drivers/media/video/{mt9m111.c,ov6650.c}
 - drivers/mfd/ab3550-core.c
 - include/linux/dmaengine.h

microblaze: Add export.h to arch/microblaze files as required

2011-10-31T23:31:06+00:00

For access to the EXPORT_SYMBOL variants and THIS_MODULE macros.

Signed-off-by: Paul Gortmaker

Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze

2011-10-31T23:13:44+00:00

* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW usage
  microblaze: Use delay slot in __strnlen_user, __strncpy_user
  microblaze: Remove NET_IP_ALIGN from system.h
  microblaze: Add __ucmpdi2() helper function
  microblaze: Raise SIGFPE/FPE_INTDIV for div by zero
  microblaze: Switch ELF_ARCH code to 189
  microblaze: Added DMA sync operations
  microblaze: Moved __dma_sync() to dma-mapping.h
  microblaze: Add PVR for Microblaze v8.20.a
  microblaze: Fix access_ok macro
  microblaze: Add loop unrolling for PAGE in copy_tofrom_user
  microblaze: Simplify logic for unaligned byte copying
  microblaze: Change label names - copy_tofrom_user
  microblaze: Separate fixup section definition
  microblaze: Change label name in copy_tofrom_user
  microblaze: Clear top bit from cnt32_to_63

microblaze: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW usage

2011-10-14T10:28:42+00:00

As far as I can tell the only reason microblaze has
__ARCH_WANT_INTERRUPTS_ON_CTXSW is because it initializes new task state
with interrupts enabled so that on switch_to() interrupts get enabled.

So change copy_thread() to clear MSR_IE instead of set it, this will
ensure switch_to() will always keep IRQs disabled.

The scheduler will disable IRQs when taking rq->lock in schedule() and
enable IRQs in finish_lock_switch() after its done its magic.

This leaves ARM the only __ARCH_WANT_INTERRUPTS_ON_CTXSW user.

Signed-off-by: Peter Zijlstra 
Signed-off-by: Michal Simek

microblaze: Use delay slot in __strnlen_user, __strncpy_user

2011-10-14T10:24:34+00:00

Use delay slot to speedup if maxlen is zero.

Signed-off-by: Michal Simek

microblaze: Remove NET_IP_ALIGN from system.h

2011-10-14T10:24:33+00:00

Use default value (which is the same) from
include/linux/skbuff.h.

Signed-off-by: Michal Simek