Commit Graph

9903 Commits

Author SHA1 Message Date
Nicolas Pitre
585f54575d [ARM] 2956/1: fix the "Fix gcc4 build errors in ucb1x00-core.c"
Patch from Nicolas Pitre

drivers/mfd/ucb1x00-core.c: In function 'ucb1x00_probe':
drivers/mfd/ucb1x00-core.c:482: error: 'ucb1x00_class' undeclared (first use in this function)

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-10 18:22:17 +01:00
Markus F.X.J. Oberhumer
d347f37227 [PATCH] i386: fix stack alignment for signal handlers
This fixes the setup of the alignment of the signal frame, so that all
signal handlers are run with a properly aligned stack frame.

The current code "over-aligns" the stack pointer so that the stack frame
is effectively always mis-aligned by 4 bytes.  But what we really want
is that on function entry ((sp + 4) & 15) == 0, which matches what would
happen if the stack were aligned before a "call" instruction.

Signed-off-by: Markus F.X.J. Oberhumer <markus@oberhumer.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:45:06 -07:00
Benjamin Herrenschmidt
867f8b4e47 [PATCH] ide: Workaround PM problem
The logic in ide_do_request() doesn't guarantee that both drives will be
serviced after a call.  It may "forget" to service one in some
circumstances, including when one of the drive is suspended (it will
eventually fail to service the slave when the master is suspended for
example).  This prevents the wakeup requests that gets queued on wakeup
from sleep from beeing serviced in some cases when 2 drives are sharing
an IDE bus.

The problem is deep enough in the way this code works (and there are
probably a few other problematic but rare corner cases) and fixing it
would require some major rethinking of the way IDE decides which channel
to service.  This is not 2.6.14 material.  However, in the meantime,
Bart has accepted this simple workaround that will fix the crash on
wakeup from sleep since this specific corner case is actually hitting
users to get into 2.6.14.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:40:47 -07:00
Tom Zanussi
1cc956e12a [PATCH] relayfs: fix bogus param value in call to vmap
The third param in this call to vmap shouldn't be GFP_KERNEL, which
makes no sense, but rather VM_MAP.  Thanks to Al Viro for spotting
this.

Signed-off-by: Tom Zanussi <zanussi@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:39:50 -07:00
Linus Torvalds
eb1b74e097 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2005-10-10 08:38:52 -07:00
Jeff Dike
50f72b5794 [PATCH] uml: fix x86_64 with !CONFIG_FRAME_POINTER
UML/x86_64 doesn't run when built with frame pointers disabled.  There
was an implicit frame pointer assumption in the stub segfault handler.
With frame pointers disabled, UML dies on handling its first page fault.

The container-of part of this is from Paolo Giarrusso <blaisorblade@yahoo.it>.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:37:59 -07:00
Rafael J. Wysocki
3dd083255d [PATCH] x86_64: Set up safe page tables during resume
The following patch makes swsusp avoid the possible temporary corruption
of page translation tables during resume on x86-64.  This is achieved by
creating a copy of the relevant page tables that will not be modified by
swsusp and can be safely used by it on resume.

The problem is that during resume on x86-64 swsusp may temporarily
corrupt the page tables used for the direct mapping of RAM.  If that
happens, a page fault occurs and cannot be handled properly, which leads
to the solid hang of the affected system.  This leads to the loss of the
system's state from before suspend and may result in the loss of data or
the corruption of filesystems, so it is a serious issue.  Also, it
appears to happen quite often (for me, as often as 50% of the time).

The problem is related to the fact that (at least) one of the PMD
entries used in the direct memory mapping (starting at PAGE_OFFSET)
points to a page table the physical address of which is much greater
than the physical address of the PMD entry itself.  Moreover,
unfortunately, the physical address of the page table before suspend
(i.e.  the one stored in the suspend image) happens to be different to
the physical address of the corresponding page table used during resume
(i.e.  the one that is valid right before swsusp_arch_resume() in
arch/x86_64/kernel/suspend_asm.S is executed).  Thus while the image is
restored, the "offending" PMD entry gets overwritten, so it does not
point to the right physical address any more (i.e.  there's no page
table at the address pointed to by it, because it points to the address
the page table has been at during suspend).  Consequently, if the PMD
entry is used later on, and it _is_ used in the process of copying the
image pages, a page fault occurs, but it cannot be handled in the normal
way and the system hangs.

In principle we can call create_resume_mapping() from
swsusp_arch_resume() (ie.  from suspend_asm.S), but then the memory
allocations in create_resume_mapping(), resume_pud_mapping(), and
resume_pmd_mapping() must be made carefully so that we use _only_
NosaveFree pages in them (the other pages are overwritten by the loop in
swsusp_arch_resume()).  Additionally, we are in atomic context at that
time, so we cannot use GFP_KERNEL.  Moreover, if one of the allocations
fails, we should free all of the allocated pages, so we need to trace
them somehow.

All of this is done in the appended patch, except that the functions
populating the page tables are located in arch/x86_64/kernel/suspend.c
rather than in init.c.  It may be done in a more elegan way in the
future, with the help of some swsusp patches that are in the works now.

[AK: move some externs into headers, renamed a function]

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:36:46 -07:00
Paolo 'Blaisorblade' Giarrusso
52a2d3e45e [PATCH] uml: cleanup whitespace for COW driver
Fix whitespace - I split this off the previous patch for easier review.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:36:00 -07:00
Paolo 'Blaisorblade' Giarrusso
028c0cc16e [PATCH] uml: cleanup byte order macros for COW driver
After restoring the existing code, make it work also when included in
kernelspace code (which isn't currently the case, but at least this will prevent
people from "fixing" it as just happened).
Whitespace is fixed in next patch - it cluttered the diff too much.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:36:00 -07:00
Paolo 'Blaisorblade' Giarrusso
855ec613ca [PATCH] uml: restore include breakage, breaking binary format of COW driver
Commit 44456d37b5, between 2.6.13-rc3 and -rc4,
was a "nice cleanup" which broke something. Revert the offending part.

It broke because:
a) because this part doesn't fall under the description
b) the author didn't know what he was doing here
c) the author didn't try to compile the existing code and see that it worked
   perfectly.
d) the author didn't ask us what was happening
e) you didn't either, and somebody there should have learned that UML is a bit
   different.

In fact, UML is special in linking to host libc and using its includes.

In particular, since host includes always define both __BIG_ENDIAN and
__LITTLE_ENDIAN, ntohll() macros started thinking to be in a big-endian world;
and on-disk compatibility was broken.

Many thanks go to Nix for reporting the problem and correctly diagnosing an
endianness problem.

Btw, this patch restores the previous code, which worked; but the definitions
would be uncorrect if used in kernelspace files.

Next patch addresses that.

Cc: Nix <nix@esperi.org.uk>, Olaf Hering <olh@suse.de>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:36:00 -07:00
Paolo 'Blaisorblade' Giarrusso
54a8a2220c [PATCH] uml: allow building .s/.i/.lst files from userspace files
For files which need to include glibc headers (i.e. userspace files), we
specified the correct flags only for .o, not for .s/.lst/.i. Fix this.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:36:00 -07:00
Paolo 'Blaisorblade' Giarrusso
9e3d862e5c [PATCH] uml: add mode=skas0 as a synonym of skas0
Too many people were confused by skas0 and tried using "mode=skas0". And after
all, they are right - accept this.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:36:00 -07:00
Paolo 'Blaisorblade' Giarrusso
5cd10daa0c [PATCH] Uml: hide commands when not being verbose
Add a missing $(Q) to a "ln" invocation.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:36:00 -07:00
Steven Rostedt
220ec02911 [PATCH] pcmcia: fix task state at pccard thread exit
The pccardd thread has a race in it that it can shutdown in the
TASK_INTERRUPTIBLE state.

Make sure we mark ourselves runnable again as we remove ourselves from
the wait queue.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-10 08:33:27 -07:00
Paul Mackerras
3c3f42d63a powerpc: Start merging 64-bit support into powermac files
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:58:41 +10:00
Paul Mackerras
e574d238ab powerpc: Fix compilation for 32-bit configs
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:58:10 +10:00
Paul Mackerras
c5200c90db powerpc: Fix off-by-one error in prom_init.c
This was preventing us from recognizing that we did actually
instantiate RTAS successfully on pSeries.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:57:03 +10:00
Paul Mackerras
eef289f79c powerpc: Merge asm/unistd.h
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:56:11 +10:00
Paul Mackerras
1b92313d5b powerpc: Merge asm/irq.h
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:54:57 +10:00
Paul Mackerras
76f9f87fa5 powerpc: Get iseries to compile with ARCH=powerpc
This moves the Device_List member from struct device_node to
struct pci_dn, which cleans up the device_node and makes the code
a little simpler.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:52:26 +10:00
Paul Mackerras
40ef8cbc6d powerpc: Get 64-bit configs to compile with ARCH=powerpc
This is a bunch of mostly small fixes that are needed to get
ARCH=powerpc to compile for 64-bit.  This adds setup_64.c from
arch/ppc64/kernel/setup.c and locks.c from arch/ppc64/lib/locks.c.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:50:37 +10:00
Paul Mackerras
bc6f8a4b19 powerpc: move lparmap.c to arch/powerpc/kernel
Since lparmap.s gets included in arch/powerpc/kernel/head_64.S,
this avoids depending on a file in another directory.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:45:07 +10:00
Paul Mackerras
5a408329ed powerpc: Fix bug caused by negation of 64-bit reloc_offset value
Although both ppc32 and ppc64 have a reloc_offset function, the ppc64
one produced the opposite sign to the ppc32 one.  This standardizes
on the ppc32 sign and fixes the merged 64-bit code to account for that.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:41:25 +10:00
Paul Mackerras
4a2885630b powerpc: Reduce the 32/64-bit diffs in vmlinux.lds.S
Also adds the definition of the _sdata symbol to the ppc64 vmlinux.lds.S.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:38:46 +10:00
Paul Mackerras
8641778049 powerpc: Reduce the 32/64-bit differences in traps.c
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:37:57 +10:00
Paul Mackerras
b42b661745 powerpc: Make prom_init.c suitable for both 32-bit and 64-bit
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:37:16 +10:00
Paul Mackerras
9994a33865 powerpc: Introduce entry_{32,64}.S, misc_{32,64}.S, systbl.S
The system call table has been consolidated into systbl.S.  We have
separate 32-bit and 64-bit versions of entry.S and misc.S since the
code is mostly sufficiently different to be not worth merging.
There are some common bits that will be extracted in future.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:36:14 +10:00
Paul Mackerras
06d67d5474 powerpc: make process.c suitable for both 32-bit and 64-bit
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:29:05 +10:00
Paul Mackerras
daec962e27 powerpc: Use arch/powerpc/mm and arch/powerpc/lib for 64-bit
This also puts a copy of indirect_pci.c in arch/powerpc/sysdev
so that we don't need to build in arch/ppc/syslib.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:25:26 +10:00
Paul Mackerras
b3b8dc6c07 powerpc: Use reg.h instead of processor.h when we just want reg names
Now that the register names and bit definitions are all in reg.h,
use that instead of processor.h in assembly code in a few places.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:20:10 +10:00
Paul Mackerras
ff64208df7 powerpc: Merge Kconfig.debug
This merges in the ppc64 bits into arch/powerpc/Kconfig.debug

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:15:52 +10:00
Paul Mackerras
f6d57916db powerpc: rename powermac files to remove pmac_ prefix
Since the files are now in arch/powerpc/platforms/powermac, the
pmac_ prefix that they had is redundant.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:13:53 +10:00
Paul Mackerras
c17e3325ba ppc64: Use SPRN_ prefix for special purpose register names
Now that we are using the merged reg.h we have to use the SPRN_xxx
names rather than the xxx names.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:07:35 +10:00
Paul Mackerras
69a80d3f69 powerpc: move pSeries files to arch/powerpc/platforms/pseries
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:03:41 +10:00
Paul Mackerras
ab1f9dac6e powerpc: Merge arch/ppc64/mm to arch/powerpc/mm
This moves the remaining files in arch/ppc64/mm to arch/powerpc/mm,
and arranges that we use them when compiling with ARCH=ppc64.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 21:58:35 +10:00
Paul Mackerras
70d64ceaa1 powerpc: Rename files to have consistent _32/_64 suffixes
This doesn't change any code, just renames things so we consistently
have foo_32.c and foo_64.c where we have separate 32- and 64-bit
versions.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 21:52:43 +10:00
Paul Mackerras
a432403a89 ppc64: Use the merged lmb routines
The only real change here is that lmb_enforce_memory_limit now takes
the memory_limit as a parameter instead of as a global variable.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 20:49:07 +10:00
Ben Dooks
7dead80cbe [ARM] 2964/1: S3C2410 - serial: add .owner to driver
Patch from Ben Dooks

Initialise the driver's .owner field so that
the device driver can be referenced to the
module that owns it

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-10 10:20:07 +01:00
Ben Dooks
cdfc8f5079 [ARM] 2963/1: S3C2410 - add .owner field to device_driver
Patch from Ben Dooks

Add initialisation of .owner field so that
the device driver can be referenced to the
module that owns it.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-10 10:20:06 +01:00
Richard Purdie
7c3989885c [ARM] 2962/1: scoop: Allow GPIO pin suspend state to be specified
Patch from Richard Purdie

Allow the GPIO pin suspend states to be specified for SCOOP devices.
This is needed for correct operation on the spitz platform.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-10 10:20:06 +01:00
Richard Purdie
1036260e93 [ARM] 2961/1: corgi: Add missing include
Patch from Richard Purdie

Add a missing include from corgi.c

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-10 10:17:45 +01:00
Richard Purdie
97b8e00e85 [ARM] 2960/1: collie: Add missing scoop call parameters
Patch from Richard Purdie

Add some missing parameters from the scoop calls on collie.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-10 10:17:44 +01:00
George G. Davis
19da83f632 [ARM] 2959/1: Add test for invalid LDRD/STRD Rd cases in ARM alignment handler
Patch from George G. Davis

Add test for invalid LDRD/STRD Rd cases in ARM alignment handler
and restore SWP printk KERN_ERR.

Signed-off-by: Steve Longerbeam <slongerbeam@mvista.com>
Signed-off-by: George G. Davis <gdavis@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-10 10:17:44 +01:00
Sascha Hauer
79d13b62ef [ARM] 2958/1: fix definition in imx-regs.h
Patch from Sascha Hauer

Fix PD7_AF_UART2_DTR definition

Signed-off-by: Giancarlo Formicuccia <gformicuccia@atinno.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-10 10:17:43 +01:00
Sascha Hauer
86371d071b [ARM] 2957/1: imx UART Error handling
Patch from Sascha Hauer

Fix error path in imx_startup.

Signed-off-by: Giancarlo Formicuccia <gformicuccia@atinno.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-10 10:17:42 +01:00
Russell King
ce80cc1481 [ARM] Update mach-types
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-10-10 09:48:10 +01:00
Paul Mackerras
9f04b9e327 powerpc: Merged processor.h.
This adds register definitions from the ppc64 processor.h to reg.h,
and makes a single merged processor.h.  I moved __is_processor from
the ppc64 system.h to the merged reg.h along with the PVR register
constants.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 14:19:43 +10:00
Paul Mackerras
b60fc8bbd2 powerpc: Make some #includes explicit.
In preparation for merging processor.h, this adds some explicit
but won't be after the merge.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 14:14:55 +10:00
Paul Mackerras
b5bbeb2373 powerpc: Use SPRN_xxx rather than xxx for SPR numbers
This changes symbols like HID0, SPRG3, SRR0, SRR1 etc. that refer to
special purpose registers to SPRN_HID0, SPRN_SPRG3, etc.  Using the
SPRN_ symbols clutters the namespace less, and the forthcoming merge
of asm/processor.h and asm/reg.h is going to remove the non-SPRN_
versions.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 14:01:07 +10:00
Sven Hartge
2e457ef667 [SPARC64]: Fix compile error in irq.c
irq.c is missing the inclusion of asm/io.h, which causes
readb() and writeb() the be undefined.

Signed-off-by: Sven Hartge <hartge@ds9.argh.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-10-08 21:12:04 -07:00