Commit Graph

705 Commits

Author SHA1 Message Date
Michal Simek 702d54277a microblaze: Fix coding style - ptrace.h
Use tab instead of spaces.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:55 +01:00
Michal Simek a9dbe5eb1f microblaze: Add PVR for Microblaze v8.10.a
Microblaze v8.10.a has 0x14 version string.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:55 +01:00
Michal Simek b9dc9e7781 microblaze: Label MB 7.20.d as broken with WB cache
MB version 7.20.d contains fault which is related with WB that's why
error message will be shown.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:55 +01:00
Michal Simek a706729c3d microblaze: Fix GDB issue caused by cache issue
Used the same solution as SH. Changed len to PAGE_SIZE
in copy_to_user_page macro.

Implement flush_cache_page macro.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:55 +01:00
Michal Simek cd3415779b microblaze: Do not use "la" pseudo instruction - use addik instead
"la" pseudo instruction is only translation to "addik".
Use directly "addik" which is described in the MB reference guide.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:54 +01:00
Michal Simek 6e83557c38 microblaze: Remove r0_ram pointer and PTO alignment
r0_ram pool was used for saving/restoring register
content if hw exception happen. This poll was replaced by
pt_pool_space with PT_SIZE size.
Based on this change SAVE_STATE_ARG_SPACE was removed which
caused that PTO offset is zero that's why is also removed.

r0_ram space was used as scratchpad by v850. In early
Microblaze Linux developing phase was this part of code
blindly copied.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:54 +01:00
Michal Simek d8748e73e8 microblaze: Do not use r0_ram space for syscall debugging
Remove syscall counting space from r0_ram. Use special
syscall_debug_table pool for syscall statistic.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:54 +01:00
Michal Simek 495162dfef microblaze: Optimize BE/LE bootup detecting
Save 0x1 word to rodata section and remove online value
loading if DTB is passed from bootloader. It saves two
asm instructions in bootup.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:53 +01:00
Michal Simek 6011497751 microblaze: Fix unaligned.h for endians
Synchronized with mips unaligned.h.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:53 +01:00
Michal Simek c06b3a0682 microblaze: Do not use r0_ram space for hw exception debugging
Remove hw exception counting space from r0_ram. Use special
exception_debug_table poll for exception statistic.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:53 +01:00
Grant Likely 38a5d6736e Merge commit 'v2.6.38-rc6' into devicetree/next
Conflicts:
	drivers/spi/pxa2xx_spi_pci.c
2011-02-28 01:36:21 -07:00
Thomas Gleixner 7acdbb3f35 Merge branch 'linus' into x86/platform
Reason: Import mainline device tree changes on which further patches
        depend on or conflict.

Trivial conflict in: drivers/spi/pxa2xx_spi_pci.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-23 09:21:41 +01:00
John Stultz b8f39f7dfe microblaze: convert to clocksource_register_hz/khz
This converts the microblaze clocksources to use clocksource_register_hz/khz

CC: Michal Simek <monstr@monstr.eu>
CC: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: John Stultz <johnstul@us.ibm.com>
2011-02-21 13:33:46 -08:00
Michal Simek 0eb6aaf529 microblaze: Fix msr instruction detection
Fix msr instructions detection. The current code
just use msrclr for loading msr content and compare
it with proper MSR content. If msrclr is not implemented
r8 contains pc address.
Previous code wanted to use MSR carry bit but if msrclr
wasn't implemented carry wasn't cleared.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-02-07 19:13:01 +01:00
Michal Simek 1f80a67da2 microblaze: Fix pte_update function
Do not disable irq in asm but use irq macros.
Systems with MSR=0 couldn't use pte_update function
because msrclr was hardcoded.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-02-07 19:12:30 +01:00
Michal Simek 1649700408 microblaze: Fix asm compilation warning
Microblaze ASM doesn't support hex values for mfs instructions.

/tmp/ccwiXVmt.s: Assembler messages:
/tmp/ccwiXVmt.s:19: Warning: ignoring operands: x00

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-02-07 19:12:17 +01:00
Michal Simek 12dfc73e1d microblaze: Fix IRQ flag handling for MSR=0
Patch: Fix IRQ flag handling naming
(sha1: f9ee29270c11dba7d0fe0b83ce47a4d8e8d2101)
introduced problem on system with MSR=0.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-02-07 19:12:04 +01:00
Grant Likely b5d937de03 powerpc/pci: Make both ppc32 and ppc64 use sysdata for pci_controller
Currently, ppc32 uses sysdata for the pci_controller pointer, and
ppc64 uses it to hold the device_node pointer.  This patch moves the
of_node pointer into (struct pci_bus*)->dev.of_node and
(struct pci_dev*)->dev.of_node so that sysdata can be converted to always
use the pci_controller pointer instead.  It also fixes up the
allocating of pci devices so that the of_node pointer gets assigned
consistently and increments the ref count.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-02-04 11:46:51 -07:00
Sebastian Andrzej Siewior 04bea68b2f of/pci: move of_irq_map_pci() into generic code
There is a tiny difference between PPC32 and PPC64. Microblaze uses the
PPC32 variant.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
[grant.likely@secretlab.ca: Added comment to #endif, moved documentation
	block to function implementation, fixed for non ppc and microblaze
	compiles]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-02-04 11:46:50 -07:00
Michal Simek de93c3c119 microblaze: Fix ASM optimized code for LE
Microblaze little-endian doesn't support ASM optimized library
functions(memcpy/memmove). Kconfig doens't contain
any information about endian that's why it is necessary to
check it in the source code.
The code is used with barrel shifter is used.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-28 14:05:13 +01:00
Michal Simek 9c749e177c microblaze: Fix unaligned issue on MMU system with BS=0 DIV=1
Unaligned code use shift for finding register operand.
There is used BSRLI(r8,r8,2) macro which is expand for BS=0, DIV=1
by
	ori rD, r0, (1 << imm);	\
	idivu rD, rD, rA

but if rD is equal rA then ori instruction rewrite value which
should be devide.

The patch remove this macro which use idivu instruction because
idivu takes 32/34 cycles. The highest shifting is 20 which takes
20 cycles.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-28 14:05:00 +01:00
Michal Simek 026a207879 microblaze: Fix DTB passing from bootloader
Little endian system needs to check OF_DT_HEADER
but it is swapped because it is in big-endian.
Microblaze LE provides lwr instruction which loads
magic number in BIG endian format which can be compared.

There is used the fact that if you write 0x1 as word
and load it as byte then you get for big-endian zero
and 1 for little-endian.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-28 14:04:36 +01:00
Thomas Gleixner b6e31629e3 microblaze: Use generic irq Kconfig
No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michal Simek <monstr@monstr.eu>
2011-01-21 11:55:32 +01:00
Thomas Gleixner 1c77ff22f5 genirq: Remove __do_IRQ
All architectures are finally converted. Remove the cruft.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Michal Simek <monstr@monstr.eu>
Acked-by: David Howells <dhowells@redhat.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Jeff Dike <jdike@addtoit.com>
2011-01-21 11:55:31 +01:00
David Rientjes 6a108a14fa kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT
The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option
is used to configure any non-standard kernel with a much larger scope than
only small devices.

This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes
references to the option throughout the kernel.  A new CONFIG_EMBEDDED
option is added that automatically selects CONFIG_EXPERT when enabled and
can be used in the future to isolate options that should only be
considered for embedded systems (RISC architectures, SLOB, etc).

Calling the option "EXPERT" more accurately represents its intention: only
expert users who understand the impact of the configuration changes they
are making should enable it.

Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: David Woodhouse <david.woodhouse@intel.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Greg KH <gregkh@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Robin Holt <holt@sgi.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-01-20 17:02:05 -08:00
Linus Torvalds a25cecce88 Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Fix asm/pgtable.h
  microblaze: Fix missing pagemap.h
2011-01-18 08:06:22 -08:00
Michal Simek 658b368da1 microblaze: Fix asm/pgtable.h
Function ptep_test_and_clear_young have had wrong the first argument.
It is also necessary to add __HAVE macros for ptep_test_and_clear_young and
ptep_get_and_clear functions.

Error log:
In file included from linux/arch/microblaze/include/asm/pgtable.h:570,
                 from arch/microblaze/mm/pgtable.c:35:
include/asm-generic/pgtable.h:23: error: conflicting types for 'ptep_test_and_clear_young'
linux/arch/microblaze/include/asm/pgtable.h:449: error:
previous definition of 'ptep_test_and_clear_young' was here
include/asm-generic/pgtable.h:73: error: redefinition of 'ptep_get_and_clear'
linux/arch/microblaze/include/asm/pgtable.h:462: error:
previous definition of 'ptep_get_and_clear' was here

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-16 14:29:41 +01:00
Michal Simek 1947fc1d51 microblaze: Fix missing pagemap.h
Add missing linux/pagemap.h to solve compilation error.

Error log:
In file included from linux/arch/microblaze/include/asm/tlb.h:17,
                 from mm/pgtable-generic.c:9:
include/asm-generic/tlb.h: In function 'tlb_flush_mmu':
include/asm-generic/tlb.h:76: error: implicit declaration of function 'release_pages'
include/asm-generic/tlb.h: In function 'tlb_remove_page':
include/asm-generic/tlb.h:105: error: implicit declaration of function 'page_cache_release'

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-16 14:29:21 +01:00
Grant Likely 672c54466d dt/flattree: Return virtual address from early_init_dt_alloc_memory_arch()
The physical address is never used by the device tree code when
allocating memory for unflattening.  Change the architecture's alloc
hook to return the virutal address instead.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-01-15 22:01:58 -07:00
Linus Torvalds 0969d11e20 Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: remove obsolete DEBUG_BOOTMEM
  microblaze: trivial: Fix removed the part of line
  microblaze: Fix __muldi3 function for little-endian.
  microblaze: Clear i/dcache for sw breakpoints
  microblaze: Remove useless early_init_dt_check_for_initrd
  microblaze: Fix unaligned exception for little endian platform
  microblaze: Add PVR for Microblaze v8.00.b
  microblaze: Correct PVR access macros
  Revert "microblaze: Simplify syscall rutine"
  microblaze: Fix initramfs
  arch/microblaze: Remove unnecessary semicolons
2011-01-11 11:13:46 -08:00
Amerigo Wang d15be32c30 microblaze: remove obsolete DEBUG_BOOTMEM
"git grep" shows this is the last piece of code using DEBUG_BOOTMEM,
so remove it.

Signed-off-by: WANG Cong <amwang@redhat.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-10 09:29:51 +01:00
Michal Simek 7f01af04bd microblaze: trivial: Fix removed the part of line
Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-03 11:36:32 +01:00
Michal Simek 3370d82f3b microblaze: Fix __muldi3 function for little-endian.
__muldi3 was written for big endian platforms.
Code contained half word read/write instructions which
are not compatible with little endian cpu.
Asm __muldi3 implementation is replaced by C version.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-03 10:30:31 +01:00
Michal Simek 17b9314687 microblaze: Clear i/dcache for sw breakpoints
There is necessary to flush dcache and invalidate
icache for address where breakpoint (brki r16, 0x18)
was. The reason is that for some cases icache line
still keeps brki instruction and it is not updated
by origin instruction maintains by gdbserver.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-03 10:16:56 +01:00
Michal Simek 27cbe8d4d1 microblaze: Remove useless early_init_dt_check_for_initrd
Remove copy&paste error. Microblaze doesn't support initrd.

Signed-off-by: Walter Goossens <waltergoossens@home.nl>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-03 10:12:43 +01:00
Michal Simek e3288f3101 microblaze: Fix unaligned exception for little endian platform
Half word unaligned accesses need to be fixed.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-03 10:08:29 +01:00
Michal Simek a3c26959cc microblaze: Add PVR for Microblaze v8.00.b
Microblaze v8.00.b have 0x13 version string.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-03 10:08:16 +01:00
roel kluin 990dbcc685 microblaze: Correct PVR access macros
A definition like:

called with PVR_IS_FULL(foo) will be preprocessed to:

(foo.foo[0] & PVR0_PVR_FULL_MASK)
     ^^^
So to fix this and ensure the preprocessor compiles calls correctly:

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-03 10:01:29 +01:00
Stephen Neuendorffer e6ce1324e4 of/flattree: Add Kconfig for EARLY_FLATTREE
The device tree code is now in two pieces: some which can be used generically
on any platform which selects CONFIG_OF_FLATTREE, and some early which is used
at boot time on only a few architectures.  This patch segregates the early
code so that only those architectures which care about it need compile it.
This also means that some of the requirements in the early code (such as
a cmd_line variable) that most architectures (e.g. X86) don't provide
can be ignored.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
[grant.likely@secretlab.ca: remove extra blank line addition]
[grant.likely@secretlab.ca: fixed incorrect #ifdef CONFIG_EARLY_FLATTREE check]
[grant.likely@secretlab.ca: Made OF_EARLY_FLATTREE select instead of depend
                            on OF_FLATTREE]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-12-29 16:08:18 -07:00
Dirk Brandewie 710fc04da1 microblaze/of: Use generic rule to build dtb's
Modify arch/powerpc/boot/Makefile to use dtc command in
scripts/Makefile.lib

Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-12-23 14:59:52 -07:00
Michal Simek 9da6345885 Revert "microblaze: Simplify syscall rutine"
This reverts commit 0e41c90908.

Break jffs2 rootfs because the patch removes syscall calling
from kernel space.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-11-18 13:13:52 +01:00
Michal Simek 8cb473da3f microblaze: Fix initramfs
Patch: initramfs: generalize initramfs_data.xxx.S variants
(sha1 6ae64e428f)
requires hooks in linker script.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-11-18 13:02:54 +01:00
Joe Perches 473ff6609c arch/microblaze: Remove unnecessary semicolons
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-11-15 07:37:01 +01:00
David Daney 4b6ba8aacb of/net: Move of_get_mac_address() to a common source file.
There are two identical implementations of of_get_mac_address(), one
each in arch/powerpc/kernel/prom_parse.c and
arch/microblaze/kernel/prom_parse.c.  Move this function to a new
common file of_net.{c,h} and adjust all the callers to include the new
header.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
[grant.likely@secretlab.ca: protect header with #ifdef]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-11-01 01:08:14 -04:00
Linus Torvalds 51399a3919 Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (38 commits)
  kbuild: convert `arch/tile' to the kconfig mainmenu upgrade
  README: cite nconfig
  Revert "kconfig: Temporarily disable dependency warnings"
  kconfig: Use PATH_MAX instead of 128 for path buffer sizes.
  kconfig: Fix realloc usage()
  kconfig: Propagate const
  kconfig: Don't go out from read config loop when you read new symbol
  kconfig: fix menuconfig on debian lenny
  kbuild: migrate all arch to the kconfig mainmenu upgrade
  kconfig: expand file names
  kconfig: use the file's name of sourced file
  kconfig: constify file name
  kconfig: don't emit warning upon rootmenu's prompt redefinition
  kconfig: replace KERNELVERSION usage by the mainmenu's prompt
  kconfig: delay gconf window initialization
  kconfig: expand by default the rootmenu's prompt
  kconfig: add a symbol string expansion helper
  kconfig: regen parser
  kconfig: implement the `mainmenu' directive
  kconfig: allow PACKAGE to be defined on the compiler's command-line
  ...

Fix up trivial conflict in arch/mn10300/Kconfig
2010-10-28 16:16:39 -07:00
Namhyung Kim cfd866f6bd ptrace: cleanup arch_ptrace() on microblaze
Remove checking @addr greater than 0 because @addr is now unsigned.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Michal Simek <monstr@monstr.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-27 18:03:11 -07:00
Namhyung Kim 9b05a69e05 ptrace: change signature of arch_ptrace()
Fix up the arguments to arch_ptrace() to take account of the fact that
@addr and @data are now unsigned long rather than long as of a preceding
patch in this series.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: <linux-arch@vger.kernel.org>
Acked-by: Roland McGrath <roland@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-27 18:03:10 -07:00
Peter Zijlstra ece0e2b640 mm: remove pte_*map_nested()
Since we no longer need to provide KM_type, the whole pte_*map_nested()
API is now redundant, remove it.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Miller <davem@davemloft.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-26 16:52:08 -07:00
Linus Torvalds e0e170bd7d Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
* 'next' of git://git.monstr.eu/linux-2.6-microblaze: (42 commits)
  microblaze: Fix build with make 3.82
  fbdev/xilinxfb: Microblaze driver support
  microblaze: Support C optimized lib functions for little-endian
  microblaze: Separate library optimized functions
  microblaze: Support timer on AXI lite
  microblaze: Add support for little-endian Microblaze
  microblaze: KGDB little endian support
  microblaze: Add PVR for endians plus detection
  net: emaclite: Add support for little-endian platforms
  microblaze: trivial: Add comment for AXI pvr
  microblaze: pci-common cleanup
  microblaze: Support early console on uart16550
  microblaze: Do not compile early console support for uartlite if is disabled
  microblaze: Setup early console dynamically
  microblaze: Rename all uartlite early printk functions
  microblaze: remove early printk uarlite console dependency from header
  microblaze: Remove additional compatible properties
  microblaze: Remove hardcoded asm instraction for PVR loading
  microblaze: Use static const char * const where possible
  microblaze: Define VMALLOC_START/END
  ...
2010-10-25 16:53:11 -07:00
Linus Torvalds 51f00a471c Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  mtd/m25p80: add support to parse the partitions by OF node
  of/irq: of_irq.c needs to include linux/irq.h
  of/mips: Cleanup some include directives/files.
  of/mips: Add device tree support to MIPS
  of/flattree: Eliminate need to provide early_init_dt_scan_chosen_arch
  of/device: Rework to use common platform_device_alloc() for allocating devices
  of/xsysace: Fix OF probing on little-endian systems
  of: use __be32 types for big-endian device tree data
  of/irq: remove references to NO_IRQ in drivers/of/platform.c
  of/promtree: add package-to-path support to pdt
  of/promtree: add of_pdt namespace to pdt code
  of/promtree: no longer call prom_ functions directly; use an ops structure
  of/promtree: make drivers/of/pdt.c no longer sparc-only
  sparc: break out some PROM device-tree building code out into drivers/of
  of/sparc: convert various prom_* functions to use phandle
  sparc: stop exporting openprom.h header
  powerpc, of_serial: Endianness issues setting up the serial ports
  of: MTD: Fix OF probing on little-endian systems
  of: GPIO: Fix OF probing on little-endian systems
2010-10-25 08:19:14 -07:00
Thomas Backlund b843e4ec01 microblaze: Fix build with make 3.82
When running make headers_install_all on x86_64 and make 3.82 I hit this:

arch/microblaze/Makefile:80: *** mixed implicit and normal rules.  Stop.
make: *** [headers_install_all] Error 2

So split the rules to satisfy make 3.82.

Signed-off-by: Thomas Backlund <tmb@mandriva.org>
Cc: Stable <stable@kernel.org>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-22 15:53:15 +10:00
Linus Torvalds 3044100e58 Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (74 commits)
  x86-64: Only set max_pfn_mapped to 512 MiB if we enter via head_64.S
  xen: Cope with unmapped pages when initializing kernel pagetable
  memblock, bootmem: Round pfn properly for memory and reserved regions
  memblock: Annotate memblock functions with __init_memblock
  memblock: Allow memblock_init to be called early
  memblock/arm: Fix memblock_region_is_memory() typo
  x86, memblock: Remove __memblock_x86_find_in_range_size()
  memblock: Fix wraparound in find_region()
  x86-32, memblock: Make add_highpages honor early reserved ranges
  x86, memblock: Fix crashkernel allocation
  arm, memblock: Fix the sparsemem build
  memblock: Fix section mismatch warnings
  powerpc, memblock: Fix memblock API change fallout
  memblock, microblaze: Fix memblock API change fallout
  x86: Remove old bootmem code
  x86, memblock: Use memblock_memory_size()/memblock_free_memory_size() to get correct dma_reserve
  x86: Remove not used early_res code
  x86, memblock: Replace e820_/_early string with memblock_
  x86: Use memblock to replace early_res
  x86, memblock: Use memblock_debug to control debug message print out
  ...

Fix up trivial conflicts in arch/x86/kernel/setup.c and kernel/Makefile
2010-10-21 18:52:11 -07:00
Grant Likely 32c97689c4 of/flattree: Eliminate need to provide early_init_dt_scan_chosen_arch
This patch refactors the early init parsing of the chosen node so that
architectures aren't forced to provide an empty implementation of
early_init_dt_scan_chosen_arch.  Instead, if an architecture wants to
do something different, it can either use a wrapper function around
early_init_dt_scan_chosen(), or it can replace it altogether.

This patch was written in preparation to adding device tree support to
both x86 ad MIPS.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: David Daney <ddaney@caviumnetworks.com>
2010-10-21 11:10:10 -06:00
Michal Simek 1180b28ca8 microblaze: Support C optimized lib functions for little-endian
Optimized C library functions can rapidly speedup the kernel.
memset doesn't need to be optimized because there is no difference
in behavior on little/big endian cpu.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:52:02 +10:00
Michal Simek 93e2e85139 microblaze: Separate library optimized functions
memcpy/memmove/memset

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:52:01 +10:00
Michal Simek ccea0e6e49 microblaze: Support timer on AXI lite
New microblaze systems uses two buses. One for memories
and flashes and the second for low-speed peripherals
which can run on different CLK. This is the reason
why the kernel is trying to read clock-frequency
directly from node. If there is then the kernel will
work with it. If not then cpu CLK is used.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:52:00 +10:00
Michal Simek 02b08045a0 microblaze: Add support for little-endian Microblaze
Microblaze little-endian toolchain exports __MICROBLAZEEL__
which is used in the kernel to identify little/big endian.

The most of the changes are in loading values from DTB which
is always big endian.

Little endian platforms are based on new AXI bus which has
impact to early uartlite initialization.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:59 +10:00
Michal Simek e4f2909227 microblaze: KGDB little endian support
Just need to use little-endian opcode for brki r16, 0x18

Signed-off-by: Michal Simek <monstr@monstr.eu>
CC: Jason Wessel <jason.wessel@windriver.com>
2010-10-21 15:51:58 +10:00
Michal Simek 8e2ad016b2 microblaze: Add PVR for endians plus detection
Upcomming microblaze version will support little-endian.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
2010-10-21 15:51:57 +10:00
Michal Simek b4dcaee50a microblaze: trivial: Add comment for AXI pvr
AXI and OPB share some PVR macros.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:55 +10:00
Nishanth Aravamudan 6c3bbdd660 microblaze: pci-common cleanup
Use set_dma_ops and remove now used-once oddly named temp pointer sd.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:54 +10:00
Michal Simek 67f4aaa21c microblaze: Support early console on uart16550
Early console support reuse setting from U-BOOT that's why
it is not necessary to setup baudrates, etc.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:53 +10:00
Michal Simek 51f5fa5094 microblaze: Do not compile early console support for uartlite if is disabled
Kconfig blocks to select any other early console support that's why
this patch has no real impact on current kernel version. But it is done
because of uart16550.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:52 +10:00
Michal Simek 9a7e8d805e microblaze: Setup early console dynamically
Just setup pointer early console in run time.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:51 +10:00
Michal Simek 2af9ebe951 microblaze: Rename all uartlite early printk functions
This is done because of uart16550 early printk support

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:49 +10:00
Michal Simek 96a5ff4229 microblaze: remove early printk uarlite console dependency from header
This dependency is resolved in menuconfig.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:48 +10:00
Michal Simek e65f1e2843 microblaze: Remove additional compatible properties
Device-tree BSP generates longer compatible properties
that's why we can remove extra/old one.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:47 +10:00
Michal Simek a7d8355008 microblaze: Remove hardcoded asm instraction for PVR loading
It comes from past where pvr wasn't supported in msr instruction.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:46 +10:00
Joe Perches 92ee8bd468 microblaze: Use static const char * const where possible
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:45 +10:00
Michal Simek 099a2f4284 microblaze: Define VMALLOC_START/END
per cpu changes requires VMALLOC_START/END to be
define even for noMMU systems.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:44 +10:00
Michal Simek bd3b492a29 microblaze: Export missing symbols for modules
Several kernel modules requires empty_zero_page and mbc
to be exported.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:43 +10:00
Michal Simek 4e07dba7cb microblaze: Add libgcc function directly to kernel
Replaced libgcc functions with asm optimized implementation.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:42 +10:00
Michal Simek cec051671d microblaze: support gpio_to_irq()
gpiolib returns -ENXIO if struct gpio_chip::to_irq isn't set, so it's
safe to always call.

Based on PPC patch
"powerpc/gpio: support gpio_to_irq()"
78331aded9

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:41 +10:00
Michal Simek ac2e7c92ee microblaze: Define empty mmiowb
mmiowb is required by any driver.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:39 +10:00
Michal Simek 4d24d7f7ae microblaze: wire up prlimit64 and fanotify* syscalls
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:38 +10:00
FUJITA Tomonori b9b12fd147 microblaze: use asm-generic/pci-dma-compat.h
Use asm-generic/pci-dma-compat.h instead of the homegrown
pci_set_dma_mask and pci_set_consistent_dma_mask.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
2010-10-21 15:51:37 +10:00
Michal Simek 6d5f2f6d41 microblaze: Add PVR for BTC
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:36 +10:00
Michal Simek f66efecad0 microblaze: Add new microblaze versions
PVR for 7.30.b, 8.00.a versions.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:35 +10:00
Michal Simek b3ea838093 microblaze: remove OUTPUT_FORMAT from linker script
OUTPUT_FORMAT setup bigendian platform. Microblaze Linux port
is becoming bi endian that's why it is removed.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:34 +10:00
Michal Simek 600eb6110a microblaze: Fix r16 and r17 reg saving
r16 and r17 should be saved across interrupt and exception handling.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:33 +10:00
Christian Dietrich 36cf089dc6 microblaze: Removing dead CONTIGUOUS_PAGE_ALLOC config option
CONFIG_CONTIGUOUS_PAGE_ALLOC doesn't exist in Kconfig, therefore removing
all references to it from the source.

Signed-off-by: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:31 +10:00
Michal Simek 69717607f0 microblaze: Report if only one timer is used
Kernel needs two timers because of clocksource and clockevent.
It is better to show warning message directly on early
console if available. If it isn't available kernel log buffer
contains it.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:30 +10:00
Michal Simek 7d4320956f microblaze: Clear return value in pt_regs
Signal code uses r3 value which saved in restore_sigcontext to
rt_sigframe but it require to be zeroed. If is not zero rt_sigframe
contains wrong values.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:29 +10:00
Michal Simek 791d0a169b microblaze: Fix sys_rt_sigreturn_wrapper
Do not save return registers before rt_sigreturn is called.
_user_exception(syscall handler) already setup return address
that's why it is removed from rt_sigreturn_wrapper.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:27 +10:00
Michal Simek 06d1973490 microblaze: remove unused TIF_KERNEL_TRACE
TIF_KERNEL_TRACE is not used anywhere.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:26 +10:00
Michal Simek 68c6ac3366 microblaze: Add seccomp support
Add seccomp support.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:25 +10:00
Michal Simek 0425609680 microblaze: Remove old user debugging gdb stub
Old gdb uses priviledged exception handler to handle
gdb exception. New gdb uses brki r16, 0x18 that's why
we can remove old gdb support.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:23 +10:00
Michal Simek 95d3a8cd15 microblaze: trivial: thread_info cleanup
Coding style cleanup.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:21 +10:00
Michal Simek 5f0cb3e01e microblaze: Fix pmd_populate macro
Compilation warning:
mm/memory.c: In function '__pte_alloc':
mm/memory.c:421: warning: assignment makes integer from pointer without a cast

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:20 +10:00
Michal Simek f859f0a235 microblaze: kgdb: Remove unused variable and fix return value
I forget to remove unused variable from kgdb_arch_handle_exception.
Fix return value in microblaze_kgdb_break function.

Error log:
arch/microblaze/kernel/kgdb.c: In function 'microblaze_kgdb_break':
arch/microblaze/kernel/kgdb.c:83: warning: 'return' with a value, in function returning void
arch/microblaze/kernel/kgdb.c: In function 'kgdb_arch_handle_exception':
arch/microblaze/kernel/kgdb.c:119: warning: unused variable 'cpu'

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:19 +10:00
Michal Simek 4bdfd9ebc3 microblaze: Fix generic DTS to ensure OF requirements
LL Temac dts nodes should contain ranges property.
It is sufficient to use empty ranges property.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:51:18 +10:00
Joe Perches c4554c32a7 microblaze: Remove pr_<level> uses of KERN_<level>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-10-21 15:37:28 +10:00
Michal Marek 239060b93b Merge branch 'kbuild/rc-fixes' into kbuild/kconfig
We need to revert the temporary hack in 71ebc01, hence the merge.
2010-10-12 15:09:06 +02:00
David Howells df9ee29270 Fix IRQ flag handling naming
Fix the IRQ flag handling naming.  In linux/irqflags.h under one configuration,
it maps:

	local_irq_enable() -> raw_local_irq_enable()
	local_irq_disable() -> raw_local_irq_disable()
	local_irq_save() -> raw_local_irq_save()
	...

and under the other configuration, it maps:

	raw_local_irq_enable() -> local_irq_enable()
	raw_local_irq_disable() -> local_irq_disable()
	raw_local_irq_save() -> local_irq_save()
	...

This is quite confusing.  There should be one set of names expected of the
arch, and this should be wrapped to give another set of names that are expected
by users of this facility.

Change this to have the arch provide:

	flags = arch_local_save_flags()
	flags = arch_local_irq_save()
	arch_local_irq_restore(flags)
	arch_local_irq_disable()
	arch_local_irq_enable()
	arch_irqs_disabled_flags(flags)
	arch_irqs_disabled()
	arch_safe_halt()

Then linux/irqflags.h wraps these to provide:

	raw_local_save_flags(flags)
	raw_local_irq_save(flags)
	raw_local_irq_restore(flags)
	raw_local_irq_disable()
	raw_local_irq_enable()
	raw_irqs_disabled_flags(flags)
	raw_irqs_disabled()
	raw_safe_halt()

with type checking on the flags 'arguments', and then wraps those to provide:

	local_save_flags(flags)
	local_irq_save(flags)
	local_irq_restore(flags)
	local_irq_disable()
	local_irq_enable()
	irqs_disabled_flags(flags)
	irqs_disabled()
	safe_halt()

with tracing included if enabled.

The arch functions can now all be inline functions rather than some of them
having to be macros.

Signed-off-by: David Howells <dhowells@redhat.com> [X86, FRV, MN10300]
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> [Tile]
Signed-off-by: Michal Simek <monstr@monstr.eu> [Microblaze]
Tested-by: Catalin Marinas <catalin.marinas@arm.com> [ARM]
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> [AVR]
Acked-by: Tony Luck <tony.luck@intel.com> [IA-64]
Acked-by: Hirokazu Takata <takata@linux-m32r.org> [M32R]
Acked-by: Greg Ungerer <gerg@uclinux.org> [M68K/M68KNOMMU]
Acked-by: Ralf Baechle <ralf@linux-mips.org> [MIPS]
Acked-by: Kyle McMartin <kyle@mcmartin.ca> [PA-RISC]
Acked-by: Paul Mackerras <paulus@samba.org> [PowerPC]
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> [S390]
Acked-by: Chen Liqin <liqin.chen@sunplusct.com> [Score]
Acked-by: Matt Fleming <matt@console-pimps.org> [SH]
Acked-by: David S. Miller <davem@davemloft.net> [Sparc]
Acked-by: Chris Zankel <chris@zankel.net> [Xtensa]
Reviewed-by: Richard Henderson <rth@twiddle.net> [Alpha]
Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp> [H8300]
Cc: starvik@axis.com [CRIS]
Cc: jesper.nilsson@axis.com [CRIS]
Cc: linux-cris-kernel@axis.com
2010-10-07 14:08:55 +01:00
Arnaud Lacombe 838a2e55e6 kbuild: migrate all arch to the kconfig mainmenu upgrade
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Michal Marek <mmarek@suse.cz>
2010-09-19 22:54:11 -04:00
Michal Simek da5ab11cdf memblock, microblaze: Fix memblock API change fallout
Adopt Microblaze to the memblock API changes, to fix this
build failure:

  CC      arch/microblaze/mm/init.o
 arch/microblaze/mm/init.c: In function 'mm_cmdline_setup':
 arch/microblaze/mm/init.c:236: error: 'struct memblock_type' has no member named 'region'
 ...

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: linux-mm@kvack.org
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
LKML-Reference: <4C8B2A9A.1040303@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-11 10:30:28 +02:00
Ingo Molnar daab7fc734 Merge commit 'v2.6.36-rc3' into x86/memblock
Conflicts:
	arch/x86/kernel/trampoline.c
	mm/memblock.c

Merge reason: Resolve the conflicts, update to latest upstream.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-08-31 09:45:46 +02:00
Linus Torvalds 86ea51d4a2 Merge branch 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'merge-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  spi.h: missing kernel-doc notation, please fix
  of: fix missing headers for of_address_to_resource() in MTD and SysACE drivers
  of: Fix missing includes
  ata: update for of_device to platform_device replacement
  microblaze: Fix of: eliminate of_device->node and dev_archdata->{of,prom}_node
  microblaze: Fix of/address: Merge all of the bus translation code
  booting-without-of: Remove nonexistent chapters from TOC, fix numbering
2010-08-18 09:26:17 -07:00
David Howells d7627467b7 Make do_execve() take a const filename pointer
Make do_execve() take a const filename pointer so that kernel_execve() compiles
correctly on ARM:

arch/arm/kernel/sys_arm.c:88: warning: passing argument 1 of 'do_execve' discards qualifiers from pointer target type

This also requires the argv and envp arguments to be consted twice, once for
the pointer array and once for the strings the array points to.  This is
because do_execve() passes a pointer to the filename (now const) to
copy_strings_kernel().  A simpler alternative would be to cast the filename
pointer in do_execve() when it's passed to copy_strings_kernel().

do_execve() may not change any of the strings it is passed as part of the argv
or envp lists as they are some of them in .rodata, so marking these strings as
const should be fine.

Further kernel_execve() and sys_execve() need to be changed to match.

This has been test built on x86_64, frv, arm and mips.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-17 18:07:43 -07:00
Grant Likely f1ca09b2b5 of: Fix missing includes
This patch fixes missing includes from a number of .c files because
the code (wrongfully) depended on prom.h including them.  The include
of linux/of_address.h was removed in microblaze prom.h in commit
"of/address: Clean up function declarations" (sha1 id 22ae782f8), but
not fixed in some callers.  This patch fixes them up.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Michal Simek <monstr@monstr.eu>
2010-08-16 23:44:49 -06:00