Commit Graph

222 Commits

Author SHA1 Message Date
Al Viro
1f51eb3a88 untangle the do_mremap() mess
This backports the following upstream commits all as one patch:
	54f5de7099
	ecc1a89937
	1a0ef85f84
	f106af4e90
	097eed1038
	935874141d
	0ec62d2909
	c4caa77815
	2ea1d13f64
	570dcf2c15
	564b3bffc6
	0067bd8a55
	f8b7256096
	8c7b49b3ec
	9206de95b1
	2c6a10161d
	05d72faa6d
	bb52d66940
	e77414e0aa
	aa65607373

Backport done by Greg Kroah-Hartman.  Only minor tweaks were needed.

Cc: David S. Miller <davem@davemloft.net>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-01-18 10:19:11 -08:00
Michal Simek
131e4e97bf microblaze: Clear sticky FSR register after saving it to func parametr
Previous patch d63678d607d0e37ec7abe5ceb545d7e8aab956a4 clear
it for noMMU kernel. This one do it for MMU.

Correct noMMU version

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-10-05 11:37:47 +02:00
Michal Simek
f1ae3f6918 microblaze: UMS is used only for MMU kernel
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-10-05 11:37:47 +02:00
Linus Torvalds
a6b49cb210 Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (24 commits)
  microblaze: Disable heartbeat/enable emaclite in defconfigs
  microblaze: Support simpleImage.dts make target
  microblaze: Fix _start symbol to physical address
  microblaze: Use LOAD_OFFSET macro to get correct LMA for all sections
  microblaze: Create the LOAD_OFFSET macro used to compute VMA vs LMA offsets
  microblaze: Copy ppc asm-compat.h for clean handling of constants in asm and C
  microblaze: Actually show KiB rather than pages in "Freeing initrd memory:"
  microblaze: Support ptrace syscall tracing.
  microblaze: Updated CPU version and FPGA family codes in PVR
  microblaze: Generate correct signal and siginfo for integer div-by-zero
  microblaze: Don't be noisy when userspace causes hardware exceptions
  microblaze: Remove ipc.h file which points to non-existing asm-generic file
  microblaze: Clear sticky FSR register after generating exception signals
  microblaze: Ensure CPU usermode is set on new userspace processes
  microblaze: Use correct kbuild variable KBUILD_CFLAGS
  microblaze: Save and restore msr in hw exception
  microblaze: Add architectural support for USB EHCI host controllers
  microblaze: Implement include/asm/syscall.h.
  microblaze: Improve checking mechanism for MSR instruction
  microblaze: Add checking mechanism for MSR instruction
  ...
2009-09-24 09:01:44 -07:00
Michal Simek
bfc8125858 microblaze: Disable heartbeat/enable emaclite in defconfigs
I need to disable heartbeat function because this features
breaks testing in Qemu.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-24 10:30:27 +02:00
Michal Simek
f05131cd7a microblaze: Support simpleImage.dts make target
Instead of remembering to specify DTB= on the make commandline, this commit
allows the much friendlier make simpleImage.<dts>
where <dts>.dts is expected to be found in arch/microblaze/boot/dts/
The resulting vmlinux, with the compiled DTS linked in, will be copied to
boot/simpleImage.<dts>

This mirrors the same functionality as on PowerPC,
albeit achieving it in a slightly different way.

+ strip simpleImage file
The size of output file is very similar to linux.bin.

vmlinux - full elf without fdt blob
simpleImage.<dtb name>.unstrip - full elf with fdt blob
simpleImage.<dtb name> - stripped elf with fdt blob

Add symlink to generic system.dts in platform folder

Signed-off-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-24 10:28:22 +02:00
Alexey Dobriyan
2bcd57ab61 headers: utsname.h redux
* remove asm/atomic.h inclusion from linux/utsname.h --
   not needed after kref conversion
 * remove linux/utsname.h inclusion from files which do not need it

NOTE: it looks like fs/binfmt_elf.c do not need utsname.h, however
due to some personality stuff it _is_ needed -- cowardly leave ELF-related
headers and files alone.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-23 18:13:10 -07:00
Linus Torvalds
c37efa9325 Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (30 commits)
  Use macros for .data.page_aligned section.
  Use macros for .bss.page_aligned section.
  Use new __init_task_data macro in arch init_task.c files.
  kbuild: Don't define ALIGN and ENTRY when preprocessing linker scripts.
  arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0
  kbuild: add static to prototypes
  kbuild: fail build if recordmcount.pl fails
  kbuild: set -fconserve-stack option for gcc 4.5
  kbuild: echo the record_mcount command
  gconfig: disable "typeahead find" search in treeviews
  kbuild: fix cc1 options check to ensure we do not use -fPIC when compiling
  checkincludes.pl: add option to remove duplicates in place
  markup_oops: use modinfo to avoid confusion with underscored module names
  checkincludes.pl: provide usage helper
  checkincludes.pl: close file as soon as we're done with it
  ctags: usability fix
  kernel hacking: move STRIP_ASM_SYMS from General
  gitignore usr/initramfs_data.cpio.bz2 and usr/initramfs_data.cpio.lzma
  kbuild: Check if linker supports the -X option
  kbuild: introduce ld-option
  ...

Fix trivial conflict in scripts/basic/fixdep.c
2009-09-23 15:37:02 -07:00
Geert Uytterhoeven
cc013a8890 arches: drop superfluous casts in nr_free_pages() callers
Commit 9617729941 ("Drop free_pages()")
modified nr_free_pages() to return 'unsigned long' instead of 'unsigned
int'.  This made the casts to 'unsigned long' in most callers superfluous,
so remove them.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Chris Zankel <zankel@tensilica.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>
2009-09-22 07:17:34 -07:00
Michal Simek
cfa9a775b9 microblaze: Fix _start symbol to physical address
_start is setup to physical kernel start address.
This caused that when you load vmlinux (with MMU kernel)
via XMD program counter (pc) is setup correctly
and then you can write con and start kernel.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-22 10:11:08 +02:00
Michal Simek
a061dd5258 microblaze: Use LOAD_OFFSET macro to get correct LMA for all sections
Currently, vmlinux has LMA==VMA for all sections, which is wrong for MMU
kernels.  Previous patches in this series defined the LOAD_OFFSET constant,
now we make use of it in our link script.

Other minor changes in this patch:
	* brace/indenting cleanup of some sections
	* put __fdt_* symbols in their own section, and apply LOAD_OFFSET fixup

Signed-off-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-22 10:10:35 +02:00
John Williams
a1253977df microblaze: Create the LOAD_OFFSET macro used to compute VMA vs LMA offsets
LOAD_OFFSET is the offset between the physical load address and the kernel's
virtual address.  It will be used in the upcoming commit to vmlinux.ld.S to
make sure that the LMAs of sections in vmlinux are correct.

Signed-off-by: John Williams <john.williams@petalogix.com>
2009-09-22 10:10:06 +02:00
John Williams
1908676514 microblaze: Copy ppc asm-compat.h for clean handling of constants in asm and C
Provides the ASM_CONST macro for creating asm-safe constants.

No users yet, we'll be using it in upcoming page.h commit, for generating
the LOAD_OFFSET macro

Signed-off-by: John Williams <john.williams@petalogix.com>
2009-09-22 10:10:06 +02:00
Lennart Sorensen
d6f61770f9 microblaze: Actually show KiB rather than pages in "Freeing initrd memory:"
Fix "Freeing initrd memory:" message on microblaze to show kilobytes as
claimed rather than number of pages.

Signed-off-by: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-22 10:10:05 +02:00
Michal Simek
235754834b microblaze: Support ptrace syscall tracing.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-22 10:00:45 +02:00
John Williams
f97b4f7de4 microblaze: Updated CPU version and FPGA family codes in PVR
Signed-off-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-22 10:00:45 +02:00
Michal Simek
23902d95c9 microblaze: Generate correct signal and siginfo for integer div-by-zero
Signed-off-by: John Williams <john.williams@petalogix.com>
2009-09-22 10:00:44 +02:00
Michal Simek
bfc32ad09b microblaze: Don't be noisy when userspace causes hardware exceptions
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-22 10:00:43 +02:00
Michal Simek
7ba3fe55d0 microblaze: Remove ipc.h file which points to non-existing asm-generic file
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-22 10:00:43 +02:00
John Williams
71b23d547b microblaze: Clear sticky FSR register after generating exception signals
FSR is sticky, so after the userspace exception/signal generation, clear
it ready for next time.

Signed-off-by: John Williams <john.williams@petalogix.com>
2009-09-22 10:00:42 +02:00
John Williams
866d72295d microblaze: Ensure CPU usermode is set on new userspace processes
Signed-off-by: John Williams <john.williams@petalogix.com>
2009-09-22 10:00:41 +02:00
John Williams
e469b0eb36 microblaze: Use correct kbuild variable KBUILD_CFLAGS
Fixes the bug introduced in 9552158573f847aa429334bb97995bb290bb4b0d

Signed-off-by: John Williams <john.williams@petalogix.com>
2009-09-22 10:00:40 +02:00
Michal Simek
ac854ff1fc microblaze: Save and restore msr in hw exception
I thought that this part of code could be removed because just
save and restore MSR but any code can't change it. But seems to
that any part of code works with this information.

This patch solved problem with allocation.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-22 08:50:15 +02:00
Julie Zhu
afc26cb39e microblaze: Add architectural support for USB EHCI host controllers
Add architectural support for USB EHCI host controllers. It has been tested
using the USB EHCI host controller from Xilinx Inc., using both High Speed
devices and Full Speed devices.

Signed-off-by: Julie Zhu <julie.zhu@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-22 08:50:14 +02:00
Michal Simek
d5b37092aa microblaze: Implement include/asm/syscall.h.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-09-21 14:29:21 +02:00