Export __strncpy_user, memory_size, ioremap_bot for modules.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Remove eeh_add_device_tree_late which is powerpc specific code.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

CC      arch/microblaze/kernel/cpu/cache.o
arch/microblaze/kernel/cpu/cache.c: In function '__invalidate_dcache_range_wb':
arch/microblaze/kernel/cpu/cache.c:398: warning: ISO C90 forbids mixed declarations and code
arch/microblaze/kernel/cpu/cache.c: In function '__flush_dcache_range_wb':
arch/microblaze/kernel/cpu/cache.c:509: warning: ISO C90 forbids mixed declara
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Modules that use copy_{to,from}_user(), memcpy(), and memset() fail to build
in certain circumstances.
Signed-off-by: NSteven J. Magnani <steve@digidescorp.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

The Microblaze implementations of get_user() and (MMU) put_user() evaluate
the address argument more than once. This causes unexpected side-effects for
invocations that include increment operators, i.e. get_user(foo, bar++).

This patch also removes the distinction between MMU and noMMU put_user().

Without the patch:
  $ echo 1234567890 > /proc/sys/kernel/core_pattern
  $ cat /proc/sys/kernel/core_pattern
  12345
Signed-off-by: NSteven J. Magnani <steve@digidescorp.com>

schedule() should not be called with interrupts disabled.
Signed-off-by: NSteven J. Magnani <steve@digidescorp.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Signed-off-by: NMichal Simek <monstr@monstr.eu>

1. Remove CACHE_ALL_LOOP2 macro because it is identical to CACHE_ALL_LOOP
2. Change BUG_ON to WARN_ON
3. Remove end aligned from CACHE_LOOP_LIMITS.
C implementation do not need aligned end address and ASM code do aligned
in their macros
4. ASM optimized  CACHE_RANGE_LOOP_1/2 macros needs to get aligned end address.
Because end address is compound from start + size, end address is the first address
which is exclude.

Here is the corresponding code which describe it.
+       int align = ~(line_length - 1);
+       end = ((end & align) == end) ? end - line_length : end & align;

a) end is aligned:
it is necessary to subtruct line length because we don't want to work with
next cacheline
b) end address is not aligned:
Just align it to be ready for ASM code.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

PCI_DMA_FROMDEVICE should call invalidation not flushing.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Microblaze cacheline length is configurable and current cpu
uses two cacheline length 4 and 8.

We are taking conservative maximum value to be sure that cacheline
alignment is satisfied for all cases.

Here is the calculation for cacheline lenght 8  32bit=4Byte values
which is corresponding with SHIFT 5.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Show cache line length in /proc/cpuinfo.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Based on PowerPC patche 52142e75

PowerPC description:
On platforms doing non-coherent DMA (4xx, 8xx, ...), it's important
that the kmalloc minimum alignment is set to the cache line size, to
avoid sharing cache lines between different objects, so that DMA to
one of the objects doesn't corrupt the other.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Copy & paste error.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This patch fix consistent code which had problems with consistent_free
function.
I am not sure if we need to call flush_tlb_all after it but it keeps
tlbs synced.
I added noMMU and MMU version together.

Uncached shadow feature is not tested.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Based on af407c6d
and f41b1771Signed-off-by: NMichal Simek <monstr@monstr.eu>

Remove ancient macros which are here from Linux-2.4
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Current implementation doesn't handle dcache_line_length
correctly that's why is better to use generic memcpy.

Cache optimized function could be good way howto improve
performance but must be based on benchmarking not blind
function like this.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

As explained in commit 1c0fe6e3, we want to call the architecture independent
oom killer when getting an unexplained OOM from handle_mm_fault, rather than
simply killing current.

Cc: microblaze-uclinux@itee.uq.edu.au
Cc: Michal Simek <monstr@monstr.eu>
Cc: linux-arch@vger.kernel.org
Signed-off-by: NNick Piggin <npiggin@suse.de>
Acked-by: NDavid Rientjes <rientjes@google.com>
Acked-by: NMichal Simek <monstr@monstr.eu>

Fix divide exception message to say "divide by zero".
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc:	Michal Simek <monstr@monstr.eu>
Cc:	microblaze-uclinux@itee.uq.edu.au
Signed-off-by: NMichal Simek <monstr@monstr.eu>

It is necessary for several drivers.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

I found several function which we don't use that's why I am removing them.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Remove section mismatch - based on ppc aproach.

WARNING: vmlinux.o(.text+0x64834): Section mismatch in reference
from the function __pte_alloc_kernel() to the function .init.text:early_get_page()
The function __pte_alloc_kernel() references
the function __init early_get_page().
This is often because __pte_alloc_kernel lacks a __init
annotation or the annotation of early_get_page is wrong.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

_start is located in .text, which causes mismatch warnings with
machine_early_init() and start_kernel() in .init.text.
Signed-off-by: NSteven J. Magnani <steve@digidescorp.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Function traces on Microblaze don't include IRQ entry and exit arrows,
i.e.

 0)               |                            memcpy_toiovec() {
 0)   ==========> |
 0)               |                              do_IRQ() {
 ...
 0)   <========== |
 0) ! 5414.000 us |                            }

...because do_IRQ() doesn't have the proper attributes.
Signed-off-by: NSteven J. Magnani <steve@digidescorp.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This change should be part of b26b2d49

Origin description:

resource/PCI: align functions now return start of resource

As suggested by Linus, align functions should return the start
of a resource, not void. An update of "res->start" is no longer
necessary.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

This change should be part of 89a74ecc

Origin description:

PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs

No functional change; this converts loops that iterate from 0 to
PCI_BUS_NUM_RESOURCES through pci_bus resource[] table to use the
pci_bus_for_each_resource() iterator instead.

This doesn't change the way resources are stored; it merely removes
dependencies on the fact that they're in a table.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Patch b3c1e01a should do it.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Add new io big-endian function. They will be used
for uartlite and spi driver.
Signed-off-by: NJohn Linn <john.linn@xilinx.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Use logical and NOT for ANDN. It was likely type fault.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

The Microblaze dynamic ftrace code assumes a call ordering that is not met
in all scenarios. Specifically, executing a command similar to:

  echo 105 > /sys/kernel/debug/tracing/set_ftrace_pid

before any other tracing-related commands results in a kernel panic:

  BUG: failure at arch/microblaze/kernel/ftrace.c:198/ftrace_update_ftrace_func()!

Recoding ftrace_update_ftrace_func() to use &ftrace_caller directly eliminates
the need to capture its address elsewhere (and thus rely on a particular call
sequence).
Signed-off-by: NSteven J. Magnani <steve@digidescorp.com>
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Word copying is used only for aligned addresses.
Here is space for improving to use any better copying technique.
Look at memcpy implementation.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

If early printk console is not enabled then all messages
are written to log buffer.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

I forget to change register name in comments.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

TLB size was hardcoded in asm code. This patch brings ability
to change TLB size only in one place. (mmu.h).
Signed-off-by: NMichal Simek <monstr@monstr.eu>

I forget to remove pci Kconfig option.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

On the base on GCOV analytics is helpful to add likely/unlikely
macros.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Cachegrind analysis need this fix to be able to log asm functions.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

To be able to do trace TLB operations.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

Sync labels.
Signed-off-by: NMichal Simek <monstr@monstr.eu>

RESR and REAR uses the same regs in whole file.
Signed-off-by: NMichal Simek <monstr@monstr.eu>