Commit graph android_kernel_sony_sdm845/arch
Message SHA1
sparc64: Update defconfig.
Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2008-05-16 13:36:27 -07:00
109d1c88e9
sparc64: Fix lmb_reserve() args in find_ramdisk().
This fixes the missing ram regression reported by
Mikael Pettersson <mikpe@it.uu.se>, much thanks for
all of this help in diagnosing this.

The second argument to lmb_reserve() is a size,
not an end address bounds.

Tested-by: Mikael Pettersson <mikpe@it.uu.se>

Signed-off-by: David S. Miller <davem@davemloft.net>

David S. Miller   commited 2008-05-16 13:34:35 -07:00
7047901ec7
sh: use the common ascii hex helpers
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Harvey Harrison   authored and   Paul Mundt   commited 2008-05-16 15:09:08 +09:00
bfd3c7a728
sh: fix sh7785 master clock value
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Yoshihiro Shimoda   authored and   Paul Mundt   commited 2008-05-16 14:55:07 +09:00
65b83427c6
sh: Fix up thread info pointer in syscall_badsys resume path.
Entry to resume_userspace expects r8 to contain current_thread_info,
which happens in all paths except for syscall_badsys, where r8 was
being inadvertently trampled. Reload it before the branch.

Signed-off-by: Hideo Saito <saito@densan.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Hideo Saito   authored and   Paul Mundt   commited 2008-05-16 14:55:07 +09:00
561c2bccc7
sh: Fix up optimized SH-4 memcpy on big endian.
Signed-off-by: Hideo Saito <saito@densan.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Hideo Saito   authored and   Paul Mundt   commited 2008-05-16 14:55:07 +09:00
e08b954c9a
sh: disable initrd defaults in .empty_zero_page.
When using initramfs on systems that don't explicitly clear LOADER_TYPE,
unpack_to_rootfs() tramples tramples the range with the defaults taken
out of .empty_zero_page. This causes kernels with valid initramfs images
to bail out with crc or gzip magic mismatch errors after the second
unpack takes place on certain platform configurations.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Paul Mundt   commited 2008-05-16 14:55:07 +09:00
972ad0e0d5
sh: display boot params by default on entry.
Some kernel and boot loader configurations tweak the .empty_zero_page
settings, while others do not. Print the values out on entry as a
debugging aid.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Paul Mundt   commited 2008-05-16 14:55:06 +09:00
0105346cc7
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] macintosh: Replace deprecated __initcall with device_initcall
  [POWERPC] cell: Fix section mismatches in io-workarounds code
  [POWERPC] spufs: Fix compile error
  [POWERPC] Fix uninitialized variable bug in copy_{to|from}_user
  [POWERPC] Add null pointer check to of_find_property
  [POWERPC] vmemmap fixes to use smaller pages
  [POWERPC] spufs: Fix pointer reference in find_victim
  [POWERPC] 85xx: SBC8548 - Add flash support and HW Rev reporting
  [POWERPC] 85xx: Fix some sparse warnings for 85xx MDS
  [POWERPC] 83xx: Enable DMA engine on the MPC8377 MDS board.
  [POWERPC] 86xx: mpc8610_hpcd: fix second serial port
  [POWERPC] 86xx: mpc8610_hpcd: add support for NOR and NAND flashes
  [POWERPC] 85xx: Add 8568 PHY workarounds to board code
  [POWERPC] 86xx: mpc8610_hpcd: use ULI526X driver for on-board ethernet

Linus Torvalds   commited 2008-05-15 18:28:46 -07:00
f26a398891
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] fix personality(PER_LINUX32) performance issue
  [IA64] Properly unregister legacy interrupts
  [IA64] Remove NULL pointer check for argument never passed as NULL.
  [IA64] trivial cleanup for perfmon.c
  [IA64] trivial cleanup for entry.S
  [IA64] fix interrupt masking for pending works on kernel leave
  [IA64] allow user to force_pal_cache_flush
  [IA64] Don't reserve crashkernel memory > 4 GB
  [IA64] machvec support for SGI UV platform
  [IA64] Add header files for SGI UV platform

Linus Torvalds   commited 2008-05-15 13:56:42 -07:00
7371fd11a6
[IA64] fix personality(PER_LINUX32) performance issue
The patch aims to fix a performance issue for the syscall
personality(PER_LINUX32).

On IA-64 box, the syscall personality (PER_LINUX32) has poor performance
because it failed to find the Linux/x86 execution domain. Then it tried
to load the kernel module however it failed always and it used the default
execution domain PER_LINUX instead. Requesting kernel modules is very
expensive. It caused the performance issue. (see the function
lookup_exec_domain in kernel/exec_domain.c).

To resolve the issue, execution domain Linux/x86 is always registered in
initialization time for IA-64 architecture.

Signed-off-by: Xiaolan Huang <xiaolan.huang@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Huang, Xiaolan   authored and   Tony Luck   commited 2008-05-15 09:54:19 -07:00
839052d27e
Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] show_interrupts: prevent cpu hotplug when walking cpu_online_map.
  [S390] smp: __smp_call_function_map vs cpu_online_map fix.
  [S390] tape: Use ccw_dev_id to build cdev_id.
  [S390] dasd: fix timeout handling in interrupt handler
  [S390] s390dbf: Use const char * for dbf name.
  [S390] dasd: Use const in busid functions.
  [S390] blacklist.c: removed duplicated include
  [S390] vmlogrdr: module initialization function should return negative errors
  [S390] sparsemem vmemmap: initialize memmap.
  [S390] Remove last traces of cio_msg=.
  [S390] cio: Remove CCW_CMD_SUSPEND_RECONN in front of CCW_CMD_SET_PGID.

Linus Torvalds   commited 2008-05-15 09:10:13 -07:00
8568dae21e
Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
  arch/parisc/kernel/perf_asm.S: build fix
  parisc: remove -traditional from assembler flags
  parisc: use conditional macro for 64-bit wide ops
  parisc: Remove ioctl.h content picked up from <asm-generic/ioctl.h>.
  arch/parisc/kernel/unaligned.c: use time_* macros
  parisc: remove redundant display of free swap space in show_mem()
  drivers/parisc: replace remaining __FUNCTION__ occurrences
  parisc: replace remaining __FUNCTION__ occurrences
  parisc: new termios definitions
  parisc: fix trivial section name warnings

Linus Torvalds   commited 2008-05-15 09:09:43 -07:00
713c0515a5
arch/parisc/kernel/perf_asm.S: build fix
Missing <linux/init.h> header for __HEAD macro.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

Kyle McMartin   commited 2008-05-15 11:03:46 -04:00
c913f94d86
parisc: remove -traditional from assembler flags
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

Kyle McMartin   commited 2008-05-15 11:03:45 -04:00
3378f7ec6c
parisc: use conditional macro for 64-bit wide ops
This work enables us to remove -traditional from $AFLAGS on
parisc.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

Kyle McMartin   commited 2008-05-15 11:03:43 -04:00
872f6debca
[S390] show_interrupts: prevent cpu hotplug when walking cpu_online_map.
Surround all the code withing show_interrupts() with
get/put_online_cpus() to prevent strange results wrt cpu hotplug.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

Heiko Carstens   authored and   Martin Schwidefsky   commited 2008-05-15 16:52:41 +02:00
8dd79cb105
[S390] smp: __smp_call_function_map vs cpu_online_map fix.
Both smp_call_function() and __smp_call_function_map() access
cpu_online_map. Both functions run with preemption disabled which
protects for cpus going offline. However new cpus can be added and
therefore the cpu_online_map can change unexpectedly.
So use the call_lock to protect against changes to the cpu_online_map
in start_secondary() and all smp_call_* functions.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

Heiko Carstens   authored and   Martin Schwidefsky   commited 2008-05-15 16:52:40 +02:00
85cb185dad
[S390] s390dbf: Use const char * for dbf name.
We should use const char * for passing the name of the debug feature
around since it will not be changed.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

Cornelia Huck   authored and   Martin Schwidefsky   commited 2008-05-15 16:52:39 +02:00
5cbbf16a0f
[S390] sparsemem vmemmap: initialize memmap.
Let's just use the generic vmmemmap_alloc_block() function which
always returns initialized memory.

Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

Heiko Carstens   authored and   Martin Schwidefsky   commited 2008-05-15 16:52:38 +02:00
2069e978d5
arch/parisc/kernel/unaligned.c: use time_* macros
The functions time_before, time_before_eq, time_after, and time_after_eq are
more robust for comparing jiffies against other values.

So use the time_after() macro, defined in linux/jiffies.h, which deals with
wrapping correctl

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: S.Caglar Onur <caglar@pardus.org.tr>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

S.Caglar Onur   authored and   Kyle McMartin   commited 2008-05-15 10:38:54 -04:00
e557d2775a
parisc: remove redundant display of free swap space in show_mem()
show_mem() has no need to print the amount of free swap space manually because
show_free_areas() does this already and is called by the former.

The two outputs only differ in text formatting:

  printk("Free swap  = %lukB\n", ...);
  printk("Free swap:       %6ldkB\n", ...);

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

Johannes Weiner   authored and   Kyle McMartin   commited 2008-05-15 10:38:54 -04:00
b64af9b54c
parisc: replace remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

Harvey Harrison   authored and   Kyle McMartin   commited 2008-05-15 10:38:54 -04:00
91bae23ce1
parisc: fix trivial section name warnings
This trivial patch fixes the following section warnings on PARISC:
> WARNING: vmlinux.o (.text.1): unexpected section name.
>The (.[number]+) following section name are ld generated and not expected.
> Did you forget to use "ax"/"aw" in a .S file?
> Note that for example <linux/init.h> contains
> section definitions for use in .S files.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

Helge Deller   authored and   Kyle McMartin   commited 2008-05-15 10:38:54 -04:00
bd3bb8c15b
[POWERPC] cell: Fix section mismatches in io-workarounds code
Fix following warnings:
WARNING: arch/powerpc/platforms/cell/built-in.o(.devinit.text+0x9c): Section mismatch in reference from the function .cell_setup_phb() to the function .init.text:.iowa_register_bus()
WARNING: arch/powerpc/platforms/cell/built-in.o(.devinit.text+0xa4): Section mismatch in reference from the function .cell_setup_phb() to the function .init.text:.io_workaround_init()

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Ishizaki Kou   authored and   Paul Mackerras   commited 2008-05-15 20:49:57 +10:00
7012255aae
[POWERPC] spufs: Fix compile error
With CONFIG_VIRT_CPU_ACCOUNTING disabled, I got the following error:

linux-2.6/arch/powerpc/platforms/cell/spufs/file.c: In function 'spu_switch_log_notify':
linux-2.6/arch/powerpc/platforms/cell/spufs/file.c:2542: error: implicit declaration of function 'get_tb'
make[4]: *** [arch/powerpc/platforms/cell/spufs/file.o] Error 1

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>

FUJITA Tomonori   authored and   Paul Mackerras   commited 2008-05-15 20:49:55 +10:00
dfe1e09f22
[POWERPC] vmemmap fixes to use smaller pages
This changes vmemmap to use a different region (region 0xf) of the
address space, and to configure the page size of that region
dynamically at boot.

The problem with the current approach of always using 16M pages is that
it's not well suited to machines that have small amounts of memory such
as small partitions on pseries, or PS3's.

In fact, on the PS3, failure to allocate the 16M page backing vmmemmap
tends to prevent hotplugging the HV's "additional" memory, thus limiting
the available memory even more, from my experience down to something
like 80M total, which makes it really not very useable.

The logic used by my match to choose the vmemmap page size is:

 - If 16M pages are available and there's 1G or more RAM at boot,
   use that size.
 - Else if 64K pages are available, use that
 - Else use 4K pages

I've tested on a POWER6 (16M pages) and on an iSeries POWER3 (4K pages)
and it seems to work fine.

Note that I intend to change the way we organize the kernel regions &
SLBs so the actual region will change from 0xf back to something else at
one point, as I simplify the SLB miss handler, but that will be for a
later patch.

Signed-off-by: Paul Mackerras <paulus@samba.org>

Benjamin Herrenschmidt   authored and   Paul Mackerras   commited 2008-05-15 20:49:25 +10:00
cec08e7a94
[POWERPC] spufs: Fix pointer reference in find_victim
If victim (not ctx) is in spu_run, add victim to rq.

Signed-off-by: Luke Browning <lukebrowning@us.ibm.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>

Luke Browning   authored and   Paul Mackerras   commited 2008-05-15 20:47:17 +10:00
08fcf1d611
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Use a TS_RESTORE_SIGMASK
  lmb: Make lmb debugging more useful.
  lmb: Fix inconsistent alignment of size argument.
  sparc: Fix mremap address range validation.

Linus Torvalds   commited 2008-05-14 19:11:36 -07:00
8978a31883
lib: create common ascii hex array
Add a common hex array in hexdump.c so everyone can use it.

Add a common hi/lo helper to avoid the shifting masking that is
done to get the upper and lower nibbles of a byte value.

Pull the pack_hex_byte helper from kgdb as it is opencoded many
places in the tree that will be consolidated.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Harvey Harrison   authored and   Linus Torvalds   commited 2008-05-14 19:11:14 -07:00
3fc957721d
atmel_lcdfb: fix initialization of a pre-allocated framebuffer
Fix initialization of framebuffer not calling ioremap_writecombine() function
and not using internal SRAM for at91sam9rl.

This is a little rework of the "Don't initialize a pre-allocated framebuffer"
patch that corrects the call to ioremap_writecombine() function.

It also cuts the use of internal SRAM for at91sam9rl : it is a bit small
for a framebuffer.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Nicolas Ferre   authored and   Linus Torvalds   commited 2008-05-14 19:11:13 -07:00
90898709df
[IA64] Properly unregister legacy interrupts
acpi_unregister_gsi() should "undo" what acpi_register_gsi() does.

On systems that have legacy interrupts, acpi_unregister_gsi erroneously calls
iosapci_unregister_intr() which is wrong to do and causes a loud warning.

acpi_unregister_gsi() should just return in these cases.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Prarit Bhargava   authored and   Tony Luck   commited 2008-05-14 16:00:14 -07:00
3fb2c74ee2
[IA64] Remove NULL pointer check for argument never passed as NULL.
There is only palinfo_handle_smp as (indirect) user of palinfo_smp_call (by
way of smp_call_function_single) and surely palinfo_handle_smp never pass
NULL as parameter for info.

Signed-off-by: Simon Holm Thøgersen <odie@cs.aau.dk>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Simon Holm Thøgersen   authored and   Tony Luck   commited 2008-05-14 15:58:27 -07:00
7af1d7532b
[IA64] trivial cleanup for perfmon.c
Fix a typo, and coding style cleanups for pfm_handle_work().

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Hidetoshi Seto   authored and   Tony Luck   commited 2008-05-14 15:56:34 -07:00
0fb232fdb2
[IA64] trivial cleanup for entry.S
This patch does:
 - make comment at next to resched check more robust
 - move "re-check" comments to next to where change predicate regs

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Hidetoshi Seto   authored and   Tony Luck   commited 2008-05-14 15:56:09 -07:00
2e513fe490
[IA64] fix interrupt masking for pending works on kernel leave
[Bug-fix for "[BUG?][2.6.25-mm1] sleeping during IRQ disabled"]

This patch does:
 - enable interrupts before calling schedule() as same as others, ex. x86
 - enable interrupts during ia64_do_signal() and ia64_sync_krbs()
 - do_notify_resume_user() is still called with interrupts disabled, since
   we can take short path of fsys_mode if-statement quickly.
 - pfm_handle_work() is also called with interrupts disabled, since
   it can deal interrupt mask within itself.
 - fix/add some comments/notes

Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Hidetoshi Seto   authored and   Tony Luck   commited 2008-05-14 15:55:35 -07:00
3633c73080
[IA64] allow user to force_pal_cache_flush
The sequence executed in check_sal_cache_flush:

	- pend a timer interrupt
	- call SAL_CACHE_FLUSH
	- see if interrupt is still pending

can hang HP machines with buggy SAL_CACHE_FLUSH implementations.

Provide a kernel command-line argument to allow users skip this
check if desired. Using this parameter will force ia64_sal_cache_flush
to call ia64_pal_cache_flush() instead of SAL_CACHE_FLUSH.

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Alex Chiang   authored and   Tony Luck   commited 2008-05-14 15:42:07 -07:00
f13ae30e13
[IA64] Don't reserve crashkernel memory > 4 GB
Some IA64 machines map all cell-local memory above 4 GB (32 bit limit).
However, in most cases, the kernel needs some memory below that limit that is
DMA-capable. So in this machine configuration, the crashkernel will be reserved
above 4 GB.

For machines that use SWIOTLB implementation because they lack an I/O MMU
the low memory is required by the SWIOTLB implementation. In that case,
it doesn't make sense to reserve the crashkernel at all because it's unusable
for kdump.

A special case is the "hpzx1" machine vector. In theory, it has a I/O MMU, so
it can be booted above 4 GB. However, in the kdump case that is not possible
because of changeset 51b58e3e26:

    On HP zx1 machines, the 'machvec=dig' parameter is needed for the kdump
    kernel to avoid problems with the HP sba iommu.  The problem is that during
    the boot of the kdump kernel, the iommu is re-initialized, so in-flight DMA
    from improperly shutdown drivers causes an IOTLB miss which leads to an
    MCA.  With kdump, the idea is to get into the kdump kernel with as little
    code as we can, so shutting down drivers properly is not an option.

    The workaround is to add 'machvec=dig' to the kdump kernel boot parameters.
    This makes the kdump kernel avoid using the sba iommu altogether, leaving
    the IOTLB intact.  Any ongoing DMA falls harmlessly outside the kdump
    kernel.  After the kdump kernel reboots, all devices will have been
    shutdown properly and DMA stopped.

This patch pushes that functionality into the sba iommu initialization
code, so that users won't have to find the obscure documentation telling
them about 'machvec=dig'.

This means that also for hpzx1 it's not possible to boot when all
memory is above the 4 GB limit. So the only machine vectors that can handle
this case are "sn2" and "uv".

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Bernhard Walle   authored and   Tony Luck   commited 2008-05-14 15:40:40 -07:00
8a3360f06c
[IA64] machvec support for SGI UV platform
This patch adds the basic IA64 machvec infrastructure to support
the SGI "UV" platform.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Jack Steiner   authored and   Tony Luck   commited 2008-05-14 14:22:04 -07:00
2224661494
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: user_regset_view table fix for ia32 on 64-bit
  x86: arch/x86/mm/pat.c - fix warning
  x86: fix csum_partial() export
  x86: early_init_centaur(): use set_cpu_cap()
  x86: fix app crashes after SMP resume
  x86: wakeup.lds.S - section ordering fix
  x86: [VOYAGER] fix duplicate phys_cpu_present_map symbol
  x86/pci: fix broken ISA DMA

Linus Torvalds   commited 2008-05-13 12:33:56 -07:00
4ef7e3e90f
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  ACPI/PCI: another multiple _OSC memory leak fix
  x86/PCI: X86_PAT & mprotect
  PCI: enable nv_msi_ht_cap_quirk for ALi bridges
  PCI: Make the intel-iommu_wait_op macro work when jiffies are not running
  ACPI/PCI: handle multiple _OSC
  ACPI/PCI: handle multiple _OSC
  x86/PCI: fix broken ISA DMA
  PCI ACPI: fix uninitialized variable in __pci_osc_support_set

Linus Torvalds   commited 2008-05-13 10:48:35 -07:00
25c55d9720
x86: user_regset_view table fix for ia32 on 64-bit
The user_regset_view table for the 32-bit regsets on the 64-bit build had
the wrong sizes for the FP regsets.  This bug had no user-visible effect
(just on kernel modules using the user_regset interfaces and the like).
But the fix is trivial and risk-free.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Roland McGrath   authored and   Ingo Molnar   commited 2008-05-13 19:40:20 +02:00
1f465f4e47
x86: arch/x86/mm/pat.c - fix warning
fix this warning:

 arch/x86/mm/pat.c: In function `phys_mem_access_prot_allowed':
 arch/x86/mm/pat.c:558: warning: long long unsigned int format, long
 unsigned int arg (arg 6)
 arch/x86/mm/pat.c: In function `map_devmem':
 arch/x86/mm/pat.c:580: warning: long long unsigned int format, long
 unsigned int arg (arg 6)

Signed-off-by: D Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Pranith Kumar   authored and   Ingo Molnar   commited 2008-05-13 19:39:30 +02:00
afc8534380
x86: fix csum_partial() export
Fix this symbol export problem:

    Building modules, stage 2.
    MODPOST 193 modules
    ERROR: "csum_partial" [fs/reiserfs/reiserfs.ko] undefined!
    make[1]: *** [__modpost] Error 1
    make: *** [modules] Error 2

This is due to a known weakness of symbol exports: if a symbol's
only in-core user is an EXPORT_SYMBOL from a lib-y section, the
symbol is not linked in.

The solution is to move the export to x8664_ksyms_64.c - but the real
solution would be to fix kbuild.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Ingo Molnar   commited 2008-05-13 19:38:47 +02:00
89804c022f
x86: early_init_centaur(): use set_cpu_cap()
arch/x86/kernel/setup_64.c:954: warning: passing argument 2 of 'set_bit' from incompatible pointer type

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Andrew Morton   authored and   Ingo Molnar   commited 2008-05-13 19:37:38 +02:00
8c45a4e4f2
x86: fix app crashes after SMP resume
After resume on a 2cpu laptop, kernel builds collapse with a sed hang,
sh or make segfault (often on 20295564), real-time signal to cc1 etc.

Several hurdles to jump, but a manually-assisted bisect led to -rc1's
d2bcbad5f3 x86: do not zap_low_mappings
in __smp_prepare_cpus.  Though the low mappings were removed at bootup,
they were left behind (with Global flags helping to keep them in TLB)
after resume or cpu online, causing the crashes seen.

Reinstate zap_low_mappings (with local __flush_tlb_all) for each cpu_up
on x86_32.  This used to be serialized by smp_commenced_mask: that's now
gone, but a low_mappings flag will do.  No need for native_smp_cpus_done
to repeat the zap: let mem_init zap BSP's low mappings just like on UP.

(In passing, fix error code from native_cpu_up: do_boot_cpu returns a
variety of diagnostic values, Dprintk what it says but convert to -EIO.
And save_pg_dir separately before zap_low_mappings: doesn't matter now,
but zapping twice in succession wiped out resume's swsusp_pg_dir.)

That worked well on the duo and one quad, but wouldn't boot 3rd or 4th
cpu on P4 Xeon, oopsing just after unlock_ipi_call_lock.  The TLB flush
IPI now being sent reveals a long-standing bug: the booting cpu has its
APIC readied in smp_callin at the top of start_secondary, but isn't put
into the cpu_online_map until just before that unlock_ipi_call_lock.

So native_smp_call_function_mask to online cpus would send_IPI_allbutself,
including the cpu just coming up, though it has been excluded from the
count to wait for: by the time it handles the IPI, the call data on
native_smp_call_function_mask's stack may well have been overwritten.

So fall back to send_IPI_mask while cpu_online_map does not match
cpu_callout_map: perhaps there's a better APICological fix to be
made at the start_secondary end, but I wouldn't know that.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Hugh Dickins   authored and   Ingo Molnar   commited 2008-05-13 19:36:12 +02:00
61165d7a03
x86/PCI: X86_PAT & mprotect
Some versions of X used the mprotect workaround to change caching type from UC
to WB, so that it can then use mtrr to program WC for that region [1].  Change
the mmap of pci space through /sys or /proc interfaces from UC to UC_MINUS.
With this change, X will not need to use mprotect workaround to get WC type
since the MTRR mapping type will be honored.

The bug in mprotect that clobbers PAT bits is fixed in a follow on patch. So,
this X workaround will stop working as well.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

Venki Pallipadi   authored and   Jesse Barnes   commited 2008-05-13 09:51:54 -07:00
77db988564
x86/PCI: fix broken ISA DMA
Rene Herman reported:

> commit 8779f2fc3b
>
> "x86: don't try to allocate from DMA zone at first"
>
> breaks all of ISA DMA. Or all of ALSA ISA DMA at least. All
> ISA soundcards are silent following that commit -- no error
> messages, everything appears fine, just silence.

That patch is buggy. We had an implicit assumption that
dev = NULL for ISA devices that require 24bit DMA.

The recent work on x86 dma_alloc_coherent() breaks the ISA DMA buffer
allocation, which is represented by "dev = NULL" and requires 24bit
DMA implicitly.

Bisected-by: Rene Herman <rene.herman@keyaccess.nl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

Takashi Iwai   authored and   Jesse Barnes   commited 2008-05-13 09:51:53 -07:00
4a367f3a9d
m68knommu: missing sections for linker script
Include the missing kcrctab and kcrctab_unused sections into the m68knommu
linker script.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Greg Ungerer   authored and   Linus Torvalds   commited 2008-05-13 08:02:25 -07:00
f38c843127
parisc: fix DISCONTIGMEM compile breakage
PA-RISC to aid debugging prints out the zonelists setup by the system.  A
bad call to node_zonelist() breaks at compile-time.  This patch fixes it.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Mel Gorman   authored and   Linus Torvalds   commited 2008-05-13 08:02:24 -07:00
4413a0f637