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17 years ago[POWERPC] kexec: Send slaves to new kernel earlier
Milton Miller [Wed, 11 Apr 2007 08:32:17 +0000 (18:32 +1000)]
[POWERPC] kexec: Send slaves to new kernel earlier

With this, when kexec-ing, we copy the code and start the slaves on
their journey to the next kernel's spin loop as soon as we copy the
kexec image into place.

The kernel doesn't know exactly which slaves are spinning in
kexec_wait.  This allows us to pass more than max-cpus to the
next kernel.  But it also means that we might leave some behind.

Moving the code here means they have the time it takes us to
clear the hash table to wake up and move on.  Moving the code
any earlier would reuqire walking the image description to
search for the code, which could span multiple pages.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Fix problems with device tree representation of TSI-1xx bridges
David Gibson [Wed, 13 Jun 2007 04:53:00 +0000 (14:53 +1000)]
[POWERPC] Fix problems with device tree representation of TSI-1xx bridges

This fixes some problems with the way the some things
represented in the device tree for the Holly and Taiga boards.  This
means changes both to the dts files, and to the code which
instantiates the tsi108 ethernet platform devices based on the device
tree.

- First, and most importantly, the ethernet PHYs are given
with an identical 'reg' property.  This reg currently encodes the
accessible register used to initiate mdio interaction with the PHYs,
rather than a meaningful address on the parent bus (mdio in this
case), which is incorrect.  Instead we give the address of these
registers as 'reg' in the mdio node itself, and encode the ID of each
phy in their 'reg' propertyies.
- Currently the platform device constructor enables a
workaround in the tsi108 ethernet driver based on the compatible
property of the PHY.  This is incorrect, because the workaround in
question is necessary due to the board's wiring of the PHY, not the
model of PHY itself.  This patch alters the constructor to instead
enable the workaround based on a new special property in the PHY node.
- The compatible properties on a number of nodes in the device
tree are insufficiently precise.  In particular the PHYs give only
"bcm54xx", which is broken, since there are many bcm54xx PHY models,
and they have differences which matter.  The mdio had a compatible
property of "tsi-ethernet" identical to the ethernet MAC nodes, which
doesn't make sense.  The ethernet, i2c, bridge and PCI nodes were
given only as "tsi-*" which is somewhat inprecise, we replace with
"tsi108-*" in the case of Taiga (which has a TSI108 bridge), and
"tsi109-*", "tsi108-*" in the case of Holly (which has a TSI109
bridge).
- We remove some "model" properties from the ethernets on
Taiga board which were neither useful nor adequately precise.
- On Holly we change to using a dtc label instead of a full
path to reference the MPIC node, which makes the dts a little more
readable.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Don't store a command line in the Holly device tree
David Gibson [Wed, 13 Jun 2007 04:53:00 +0000 (14:53 +1000)]
[POWERPC] Don't store a command line in the Holly device tree

Currently, the Holly device tree includes a bootargs property in
/chosen, which gives a commandline.  This is somewhat inconvenient,
because it means an alternative default command line can't be given in
the kernel config - the value obtained from the dts via the
bootwrapper will always override CONFIG_CMDLINE.

This removes the command line from the dts, and instead puts the
same command line as a default in holly_defconfig.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Consolidate cuboot initialization code
David Gibson [Wed, 13 Jun 2007 04:53:00 +0000 (14:53 +1000)]
[POWERPC] Consolidate cuboot initialization code

The various cuboot platforms (i.e. pre-device tree aware u-boot for
83xx, 85xx and Ebony) share a certain amount of code for parsing the
boot parameters.  To a certain extent that's inevitable, since they
platforms have different definitions of the bd_t structure.  However,
with some macro work and a helper function, this patch improves the
situation a bit.

In the process, this fixes a bug on Ebony, which was incorrectly
handling the parameters passed form u-boot for the command line (the
bug was copied from 83xx and 85xx which have subsequently been fixed).

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Derive ebc ranges property from EBC registers
David Gibson [Wed, 13 Jun 2007 04:52:59 +0000 (14:52 +1000)]
[POWERPC] Derive ebc ranges property from EBC registers

In the device tree for Ebony, the 'ranges' property in the node for
the EBC bridge shows the mappings from the chip select / address lines
actually used for the EBC peripherals into the address space of the
OPB.  At present, these mappings are hardcoded in ebony.dts for the
mappings set up by the OpenBIOS firmware when it configures the EBC
bridge.

This replaces the hardcoded mappings with code in the zImage to
read the EBC configuration registers and create an appropriate ranges
property based on them.  This should make the zImage and kernel more
robust to changes in firmware configuration.  In particular, some of
the Ebony's DIP switches can change the effective address of the Flash
and other peripherals in OPB space.  With this patch, the kernel will
be able to cope with at least some of the possible variations.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Factor zImage's 44x reset code out of ebony.c
David Gibson [Wed, 13 Jun 2007 04:52:58 +0000 (14:52 +1000)]
[POWERPC] Factor zImage's 44x reset code out of ebony.c

The ebony_exit() function which resets the Ebony board should in fact
be common to most if not all 44x boards.  This moves the function out
into 44x.c, renaming it, so it can be used by other 44x platforms.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Merge CPU features pertaining to icache coherency
David Gibson [Wed, 13 Jun 2007 04:52:57 +0000 (14:52 +1000)]
[POWERPC] Merge CPU features pertaining to icache coherency

Currently the powerpc kernel has a 64-bit only feature,
COHERENT_ICACHE used for those CPUS which maintain icache/dcache
coherency in hardware (POWER5, essentially).  It also has a feature,
SPLIT_ID_CACHE, which is used on CPUs which have separate i and
d-caches, which is to say everything except 601 and Freescale E200.

In nearly all the places we check the SPLIT_ID_CACHE, what we actually
care about is whether the i and d-caches are coherent (which they will
be, trivially, if they're the same cache).

This tries to clarify the situation a little.  The COHERENT_ICACHE
feature becomes availble on 32-bit and is set for all CPUs where i and
d-cache are effectively coherent, whether this is due to special logic
(POWER5) or because they're unified.  We check this, instead of
SPLIT_ID_CACHE nearly everywhere.

The SPLIT_ID_CACHE feature itself is replaced by a UNIFIED_ID_CACHE
feature with reversed sense, set only on 601 and Freescale E200.  In
the two places (one Freescale BookE specific) where we really care
whether it's a unified cache, not whether they're coherent, we check
this feature.  The CPUs with unified cache are so few, we could
consider replacing this feature bit with explicit checks against the
PVR.

This will make unifying the 32-bit and 64-bit cache flush code a
little more straightforward.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Kill typedef-ed structs for hash PTEs and BATs
David Gibson [Wed, 13 Jun 2007 04:52:56 +0000 (14:52 +1000)]
[POWERPC] Kill typedef-ed structs for hash PTEs and BATs

Using typedefs to rename structure types if frowned on by CodingStyle.
However, we do so for the hash PTE structure on both ppc32 (where it's
called "PTE") and ppc64 (where it's called "hpte_t").  On ppc32 we
also have such a typedef for the BATs ("BAT").

This removes this unhelpful use of typedefs, in the process
bringing ppc32 and ppc64 closer together, by using the name "struct
hash_pte" in both cases.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Start factoring pgtable-ppc32.h and pgtable-ppc64.h
David Gibson [Wed, 13 Jun 2007 04:52:56 +0000 (14:52 +1000)]
[POWERPC] Start factoring pgtable-ppc32.h and pgtable-ppc64.h

This factors some things defined in both pgtable-ppc32.h and
pgtable-ppc64.h into the common part of asm-powerpc/pgtable.h.  These
are all things which have essentially identical definitions, and which
by their nature are very unlikely ever to need different definitions
in the two cases.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Remove a couple of unused definitions from pgtable_32.c
David Gibson [Wed, 13 Jun 2007 04:52:56 +0000 (14:52 +1000)]
[POWERPC] Remove a couple of unused definitions from pgtable_32.c

In arch/powerpc/mm/pgtable_32.c, the variable io_bat_index and the
macro is_power_of_4() no longer have any users.  This removes them.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Remove the dregs of APUS support from arch/powerpc
David Gibson [Wed, 13 Jun 2007 04:52:54 +0000 (14:52 +1000)]
[POWERPC] Remove the dregs of APUS support from arch/powerpc

APUS (the Amiga Power-Up System) is not supported under arch/powerpc
and it's unlikely it ever will be.  Therefore, this patch removes the
fragments of APUS support code from arch/powerpc which have been
copied from arch/ppc.

A few APUS references are left in asm-powerpc in .h files which are
still used from arch/ppc.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Abolish iopa(), mm_ptov(), io_block_mapping() from arch/powerpc
David Gibson [Wed, 13 Jun 2007 04:52:54 +0000 (14:52 +1000)]
[POWERPC] Abolish iopa(), mm_ptov(), io_block_mapping() from arch/powerpc

These old-fashioned IO mapping functions no longer have any callers in
code which remains relevant on arch/powerpc.  Therefore, this removes
them from arch/powerpc.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Split out asm-ppc/mmu.h portions for the "classic" hash-based MMU
David Gibson [Wed, 13 Jun 2007 04:52:54 +0000 (14:52 +1000)]
[POWERPC] Split out asm-ppc/mmu.h portions for the "classic" hash-based MMU

arch/powerpc still relies on asm-ppc/mmu.h for most 32-bit MMU types.
This is another step towards fixing this.  It takes the portions
of asm-ppc/mmu.h related to the "classic" 32-bit hash page table MMU
which are still relevant in arch/powerpc and puts them in a new
asm-powerpc/mmu-hash32.h, included when appropriate from
asm-powerpc/mmu.h.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Split low-level OF-related bootloader code into separate files
David Gibson [Wed, 13 Jun 2007 04:52:54 +0000 (14:52 +1000)]
[POWERPC] Split low-level OF-related bootloader code into separate files

Currently, all OF-related code in the bootloader is contained in of.c.
of.c also provides the platform specific things necessary to boot on
an OF platform.

However, there are platforms (such as PReP) which can include an OF
implementation, but are not bootable as pure OF systems.  For use by
such platforms, this patch splits out the low-level parts of the OF
code (call_prom() and various wrappers thereof) into a new oflib.c
file.  In addition, the code related to bootwrapper console output via
OF are moved to a new ofconsole.c file.  Both these files are included
in the wrapper.a library where they can be used by both full-OF and
partial OF platforms.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Split out CPU specific options into a new Kconfig file
Arnd Bergmann [Tue, 12 Jun 2007 16:30:17 +0000 (02:30 +1000)]
[POWERPC] Split out CPU specific options into a new Kconfig file

A lot of the options in arch/powerpc/Kconfig deal with the CPU menu,
and my next patches add more to them.  Moving them to a new
arch/powerpc/platforms/Kconfig.cputype file makes it easier to
follow.

There are no functional changes in here.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] During VM oom condition, kill all threads in process group
will schmidt [Tue, 12 Jun 2007 15:19:01 +0000 (01:19 +1000)]
[POWERPC] During VM oom condition, kill all threads in process group

We have had complaints where a threaded application is left in a bad state
after one of it's threads is killed when we hit a VM: out_of_memory
condition.

Killing just one of the process threads can leave the application in a
bad state, whereas killing the entire process group would allow for
the application to restart, or be otherwise handled, and makes it very
obvious that something has gone wrong.

This change allows the entire process group to be taken down, rather than
just the one thread.

lightly tested on powerpc

Signed-off-by: Will <will_schmidt@vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Donate idle CPU cycles on dedicated partitions
Jake Moilanen [Thu, 7 Jun 2007 21:27:11 +0000 (07:27 +1000)]
[POWERPC] Donate idle CPU cycles on dedicated partitions

A Power6 can give up CPU cycles on a dedicated CPU (as opposed to a
shared CPU) to other shared processors if the administrator asks for it
(via the HMC).

This enables that to work properly on P6.

This just involves setting a bit in the CAS structure as well as the
VPA.  To donate cycles, a CPU has to have all SMT threads idle and
have the donate bit set in the VPA.  Then call H_CEDE.

The reason why shared processors just aren't used is because dedicated
CPUs are guaranteed an actual processor, yet the system is still able to
increase the capacity of the shared CPU pool.

Also rename the VPA's cpuctls_task_attrs field to a more accurate name.

Signed-off-by: Jake Moilanen <moilanen@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Less ifdef's in signal.c/signal.h
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:56 +0000 (15:15 +1000)]
[POWERPC] Less ifdef's in signal.c/signal.h

This patch moves things around a little bit in the new common signal.c
and signal.h files to remove the last #ifdef in the middle of the
common do_signal().

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Remove #ifdef around set_dabr in signal code
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:55 +0000 (15:15 +1000)]
[POWERPC] Remove #ifdef around set_dabr in signal code

set_dabr() and thread.dabr exist on 32 bits as well nowadays (they
actually may do something even, depending on what CPU you have).

So this removes the ifdef.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Merge creation of signal frame
Benjamin Herrenschmidt [Mon, 4 Jun 2007 07:22:48 +0000 (17:22 +1000)]
[POWERPC] Merge creation of signal frame

The code for creating signal frames was still duplicated and split
in strange ways between 32 and 64 bits, including the SA_ONSTACK
handling being in do_signal on 32 bits but inside handle_rt_signal
on 64 bits etc...

This moves the 64 bits get_sigframe() to the generic signal.c,
cleans it a bit, moves the access_ok() call done by all callers to
it as well, and adapts/cleanups the 3 different signal handling cases
to use that common function.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Remove obsolete freezer bits
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:53 +0000 (15:15 +1000)]
[POWERPC] Remove obsolete freezer bits

The powerpc signal code still had some obsolete freezer bits that
have long been removed from x86 (it's now done in generic code).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Consolidate do_signal
Christoph Hellwig [Mon, 4 Jun 2007 05:15:52 +0000 (15:15 +1000)]
[POWERPC] Consolidate do_signal

do_signal has exactly the same behaviour on 32bit and 64bit and 32bit
compat on 64bit for handling 32bit signals.  Consolidate all these
into one common function in signal.c.  The only odd left over is
the try_to_free in the 32bit version that no other architecture has
in mainline (only in i386 for some odd SuSE release).  We should
probably get rid of it in a separate patch.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Consolidate restore_sigmask
Christoph Hellwig [Mon, 4 Jun 2007 05:15:51 +0000 (15:15 +1000)]
[POWERPC] Consolidate restore_sigmask

restore_sigmask is exactly the same on 32 and 64bit, so move it to
common code.  Also move _BLOCKABLE to signal.h to avoid defining it
multiple times.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Consolidate sys_sigaltstack
Christoph Hellwig [Mon, 4 Jun 2007 05:15:50 +0000 (15:15 +1000)]
[POWERPC] Consolidate sys_sigaltstack

sys_sigaltstack is the same on 32bit and 64 and we can consolidate it
to signal.c.  The only difference is that the 32bit code uses ints
for the unused register paramaters and 64bit unsigned long.  I've
changed it to unsigned long because it's the same width on 32bit.

(I also wonder who came up with this awkward calling convention.. :))

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Make syscall restart code more common
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:49 +0000 (15:15 +1000)]
[POWERPC] Make syscall restart code more common

This patch moves the code in signal_32.c and signal_64.c for handling
syscall restart into a common signal.c file and converge around a single
implementation that is based on the 32 bits one, using trap, ccr
and r3 rather than the special "result" field for deciding what to do.

The "result" field is now pretty much deprecated. We still set it for
the sake of whatever might rely on it in userland but we no longer use
it's content.

This, along with a previous patch that enables ptracers to write to
"trap" and "orig_r3" should allow gdb to properly handle syscall
restarting.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Always apply DABR changes on context switches
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:48 +0000 (15:15 +1000)]
[POWERPC] Always apply DABR changes on context switches

This patch removes the #ifdef CONFIG_PPC64 around setting the DABR.

The actual setting of the SPR inside of the set_dabr() function is dependent
on CONFIG_PPC64 || CONFIG_6xx but you can always provide a ppc_md hook to
override that.  We should improve support for different HW breakpoints
facilities but this is a first step.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] powerpc: ptrace can set DABR on both 32 and 64 bits
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:47 +0000 (15:15 +1000)]
[POWERPC] powerpc: ptrace can set DABR on both 32 and 64 bits

Allow ptrace to set dabr in the thread structure for both 32 and 64 bits,
though only 64 bits actually uses that field, it's actually defined in both.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] ptrace shouldn't touch FP exec mode
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:47 +0000 (15:15 +1000)]
[POWERPC] ptrace shouldn't touch FP exec mode

One of the gratuitous difference between 32 and 64-bit ptrace is
whether you can whack the MSR:FE0 and FE1 bits from ptrace.  This
patch forbids it unconditionally.  In addition, the 64-bit kernels
used to return the exception mode in the MSR on reads, but 32-bit
kernels didn't.  This patch makes it return those bits on both.

Finally, since ptrace-ppc32.h and ptrace-ppc64.h are mostly empty now, and
since the previous patch made ptrace32.c no longer need the MSR_DEBUGCHANGE
definition, we just remove those 2 files and move back the remaining bits
to ptrace.c (they were short lived heh ?).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Allow ptrace write to pt_regs trap and orig_r3
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:46 +0000 (15:15 +1000)]
[POWERPC] Allow ptrace write to pt_regs trap and orig_r3

This patch allows a ptracer to write to the "trap" and "orig_r3" words
of the pt_regs.

This, along with a subsequent patch to the signal restart code, should
enable gdb to properly handle syscall restarting after executing a separate
function (at least when there's no restart block).

This patch also removes ptrace32.c code toying directly with the registers
and makes it use the ptrace_get/put_reg() accessors for everything so that
the logic for checking what is permitted is in only one place.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Remove some useless ifdef's in ptrace
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:45 +0000 (15:15 +1000)]
[POWERPC] Remove some useless ifdef's in ptrace

CHECK_FULL_REGS() exist on both 32 and 64 bits, so there's no need
to make it conditional on CONFIG_PPC32.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Uninline common ptrace bits
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:44 +0000 (15:15 +1000)]
[POWERPC] Uninline common ptrace bits

This folds back the ptrace-common.h bits back into ptrace.c and removes
that file. The FSL SPE bits from ptrace-ppc32.h are folded back in as
well.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] ptrace updates & new, better requests
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:43 +0000 (15:15 +1000)]
[POWERPC] ptrace updates & new, better requests

The powerpc ptrace interface is dodgy at best. We have defined our
"own" versions of GETREGS/SETREGS/GETFPREGS/SETFPREGS that strangely
take arguments in reverse order from other archs (in addition to having
different request numbers) and have subtle issue, like not accessing
all of the registers in their respective categories.

This patch moves the implementation of those to a separate function
in order to facilitate their deprecation in the future, and provides
new ptrace requests that mirror the x86 and sparc ones and use the
same numbers:

   PTRACE_GETREGS    : returns an entire pt_regs (the whole thing,
                       not only the 32 GPRs, though that doesn't
                       include the FPRs etc... There's a compat version
                       for 32 bits that returns a 32 bits compatible
                       pt_regs (44 uints)

   PTRACE_SETREGS    : sets an entire pt_regs (the whole thing,
                       not only the 32 GPRs, though that doesn't
                       include the FPRs etc... Some registers cannot be
                       written to and will just be dropped, this is the
                       same as with POKEUSR, that is anything above MQ
                       on 32 bits and CCR on 64 bits. There is a compat
                       version as well.

   PTRACE_GETFPREGS  : returns all the FP registers -including- the FPSCR
                       that is 33 doubles (regardless of 32/64 bits)

   PTRACE_SETFPREGS  : sets all the FP registers -including- the FPSCR
                       that is 33 doubles (regardless of 32/64 bits)

And two that only exist on 64 bits kernels:

   PTRACE_GETREGS64  : Same as PTRACE_GETREGS, except there is no compat
                       function, a 32 bits process will obtain the full 64
                       bits registers

   PTRACE_SETREGS64  : Same as PTRACE_SETREGS, except there is no compat
                       function, a 32 bits process will set the full 64
                       bits registers

The two later ones makes things easier to have a 32 bits debugger on a
64 bits program (or on a 32 bits program that uses the full 64 bits of
the GPRs, which is possible though has issues that will be fixed in a
later patch).

Finally, while at it, the patch removes a whole bunch of code duplication
between ptrace32.c and ptrace.c, in large part by having the former call
into the later for all requests that don't need any special "compat"
treatment.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] ptrace cleanups
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:41 +0000 (15:15 +1000)]
[POWERPC] ptrace cleanups

The powerpc ptrace code has some weirdness, like a ptrace-common.h file that
is actually ppc64 only and some of the 32 bits code ifdef'ed inside ptrace.c.

There are also separate implementations for things like get/set_vrregs for
32 and 64 bits which is totally unnecessary.

This patch cleans that up a bit by having a ptrace-common.h which contains
really common code (and makes a lot more code common), and ptrace-ppc32.h and
ptrace-ppc64.h files that contain the few remaining different bits.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Disable broken PPC_PTRACE_GETFPREGS on 32 bits
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:39 +0000 (15:15 +1000)]
[POWERPC] Disable broken PPC_PTRACE_GETFPREGS on 32 bits

The handling of PPC_PTRACE_GETFPREGS is broken on 32 bits kernel,
it will only return half of the registers. Since that call didn't
initially exist for 32 bits kernel (added recently), rather than
fixing it, let's just remove it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spufs: Add a "capabilities" file to spu contexts
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:38 +0000 (15:15 +1000)]
[POWERPC] spufs: Add a "capabilities" file to spu contexts

This adds a "capabilities" file to spu contexts consisting of a
list of linefeed separated capability names. The current exposed
capabilities are "sched" (the context is scheduleable) and
"step" (the context supports single stepping).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spufs: Add support for SPU single stepping
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:37 +0000 (15:15 +1000)]
[POWERPC] spufs: Add support for SPU single stepping

This patch adds support for SPU single stepping. The single
step bit is set in the SPU when the current process is
being single-stepped via ptrace. The spu then stops and
returns with a specific flag set and the syscall exit code
will generate the SIGTRAP.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Rewrite IO allocation & mapping on powerpc64
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:36 +0000 (15:15 +1000)]
[POWERPC] Rewrite IO allocation & mapping on powerpc64

This rewrites pretty much from scratch the handling of MMIO and PIO
space allocations on powerpc64.  The main goals are:

 - Get rid of imalloc and use more common code where possible
 - Simplify the current mess so that PIO space is allocated and
   mapped in a single place for PCI bridges
 - Handle allocation constraints of PIO for all bridges including
   hot plugged ones within the 2GB space reserved for IO ports,
   so that devices on hotplugged busses will now work with drivers
   that assume IO ports fit in an int.
 - Cleanup and separate tracking of the ISA space in the reserved
   low 64K of IO space. No ISA -> Nothing mapped there.

I booted a cell blade with IDE on PIO and MMIO and a dual G5 so
far, that's it :-)

With this patch, all allocations are done using the code in
mm/vmalloc.c, though we use the low level __get_vm_area with
explicit start/stop constraints in order to manage separate
areas for vmalloc/vmap, ioremap, and PCI IOs.

This greatly simplifies a lot of things, as you can see in the
diffstat of that patch :-)

A new pair of functions pcibios_map/unmap_io_space() now replace
all of the previous code that used to manipulate PCI IOs space.
The allocation is done at mapping time, which is now called from
scan_phb's, just before the devices are probed (instead of after,
which is by itself a bug fix). The only other caller is the PCI
hotplug code for hot adding PCI-PCI bridges (slots).

imalloc is gone, as is the "sub-allocation" thing, but I do beleive
that hotplug should still work in the sense that the space allocation
is always done by the PHB, but if you unmap a child bus of this PHB
(which seems to be possible), then the code should properly tear
down all the HPTE mappings for that area of the PHB allocated IO space.

I now always reserve the first 64K of IO space for the bridge with
the ISA bus on it. I have moved the code for tracking ISA in a separate
file which should also make it smarter if we ever are capable of
hot unplugging or re-plugging an ISA bridge.

This should have a side effect on platforms like powermac where VGA IOs
will no longer work. This is done on purpose though as they would have
worked semi-randomly before. The idea at this point is to isolate drivers
that might need to access those and fix them by providing a proper
function to obtain an offset to the legacy IOs of a given bus.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] unmap_vm_area becomes unmap_kernel_range for the public
Benjamin Herrenschmidt [Mon, 4 Jun 2007 05:15:35 +0000 (15:15 +1000)]
[POWERPC] unmap_vm_area becomes unmap_kernel_range for the public

This makes unmap_vm_area static and a wrapper around a new
exported unmap_kernel_range that takes an explicit range instead
of a vm_area struct.

This makes it more versatile for code that wants to play with kernel
page tables outside of the standard vmalloc area.

(One example is some rework of the PowerPC PCI IO space mapping
code that depends on that patch and removes some code duplication
and horrible abuse of forged struct vm_struct).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Tweak EEH copyright info
Linas Vepstas [Wed, 23 May 2007 17:28:01 +0000 (03:28 +1000)]
[POWERPC] Tweak EEH copyright info

Twiddle the copyright notices. Per current guidelines, the use
of the (C) or (c) in source code is deprecated.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
----
 arch/powerpc/platforms/pseries/eeh.c        |    6 +++++-
 arch/powerpc/platforms/pseries/eeh_cache.c  |    3 ++-
 arch/powerpc/platforms/pseries/eeh_driver.c |    6 +++---
 3 files changed, 10 insertions(+), 5 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Remove dead EEH code
Linas Vepstas [Wed, 23 May 2007 17:23:38 +0000 (03:23 +1000)]
[POWERPC] Remove dead EEH code

Remove some dead code.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
----
 arch/powerpc/platforms/pseries/eeh.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Show EEH per-device false positives
Linas Vepstas [Wed, 23 May 2007 17:20:51 +0000 (03:20 +1000)]
[POWERPC] Show EEH per-device false positives

Track and report the number of times we read an all-1s value (0xff,
0xffff or 0xffffffff) from each device which is valid data, not
indicating EEH isolation.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
----
 arch/powerpc/platforms/pseries/eeh.c       |    5 +++++
 arch/powerpc/platforms/pseries/eeh_sysfs.c |    3 +++
 include/asm-powerpc/pci-bridge.h           |    1 +
 3 files changed, 9 insertions(+)
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Add EEH sysfs blinkenlights
Linas Vepstas [Wed, 23 May 2007 17:16:46 +0000 (03:16 +1000)]
[POWERPC] Add EEH sysfs blinkenlights

Add sysfs blinkenlights for EEH statistics.  Shuffle the
eeh_add_device_tree() call so that it appears in the correct
sequence.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
----
 arch/powerpc/platforms/pseries/Makefile    |    2
 arch/powerpc/platforms/pseries/eeh.c       |    4 +
 arch/powerpc/platforms/pseries/eeh_cache.c |    2
 arch/powerpc/platforms/pseries/eeh_sysfs.c |   84 +++++++++++++++++++++++++++++
 arch/powerpc/platforms/pseries/pci_dlpar.c |    7 +-
 include/asm-powerpc/ppc-pci.h              |    3 +
 6 files changed, 98 insertions(+), 4 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] pseries: asm/pci-bridge.h CONFIG_ minor cleanup
Linas Vepstas [Tue, 22 May 2007 18:18:04 +0000 (04:18 +1000)]
[POWERPC] pseries: asm/pci-bridge.h CONFIG_ minor cleanup

Use the correct CONFIG_ option to mark off the EEH bits.
Move the EEH bits to the bottom of the struct.
The config_space array is used by EEH only; it does not
need to be part of the struct for non-pseries machines.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
----
Revised patch, per commments from Michael Ellerman.

 include/asm-powerpc/pci-bridge.h |   16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Move common code out of if/else
Jon Tollefson [Thu, 17 May 2007 18:49:22 +0000 (04:49 +1000)]
[POWERPC] Move common code out of if/else

Move common code out of if/else.

Signed-off-by: Jon Tollefson <kniht@linux.vnet.ibm.com>
----

hash_native_64.c |    3 +--
 1 files changed, 1 insertion(+), 2 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Fix VDSO compile warning
Segher Boessenkool [Wed, 16 May 2007 15:12:16 +0000 (01:12 +1000)]
[POWERPC] Fix VDSO compile warning

Maybe the type should have been char[] instead of __u8[]
in the first place, but this will do.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Reserve threadinfo flags for perfmon2
Anton Blanchard [Tue, 15 May 2007 19:59:06 +0000 (05:59 +1000)]
[POWERPC] Reserve threadinfo flags for perfmon2

Reserve two TIF flags for perfmon2 and shift them into the low 16 bits
so we can use single assembly instructions to create constants based off
them.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Fix console output getting dropped on platforms without udbg_putc
Milton Miller [Sun, 10 Jun 2007 04:32:43 +0000 (14:32 +1000)]
[POWERPC] Fix console output getting dropped on platforms without udbg_putc

Previously, registering this early console would just result
in dropping early buffered printk output until a udbg_putc
was registered.

However, commit 69331af79cf29e26d1231152a172a1a10c2df511
clears the CON_PRINTBUFFER flag on the main console when a
CON_BOOT (early) console has been registered, resulting in
the buffered messages never being displayed to the user.

This fixes the problem by making sure we don't register udbg_console
on platforms that don't implement udbg_putc.

Signed-off-by: Milton Miller <miltonm@bga.com>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Fix per-cpu allocation on oldworld SMP powermacs
Paul Mackerras [Thu, 7 Jun 2007 12:42:19 +0000 (22:42 +1000)]
[POWERPC] Fix per-cpu allocation on oldworld SMP powermacs

The per-cpu area(a) for the secondary CPU(s) isn't getting allocated
on old SMP powermacs that don't have the secondary CPU(s) listed in
the device tree, as per-cpu areas are now only allocated for CPUs in
the cpu_possible_map, and we aren't setting the bits for the secondary
CPU(s) until smp_prepare_cpus(), which is after per-cpu allocation.
Therefore this sets the bits for CPUs 1..3 in cpu_possible_map in
pmac_setup_arch, so they get per-cpu data allocated.

Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Wed, 13 Jun 2007 21:09:39 +0000 (14:09 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: move input-polldev to drivers/input
  Input: i8042 - add ULI EV4873 to noloop list
  Input: i8042 - add ASUS P65UP5 to the noloop list
  Input: usbtouchscreen - fix fallout caused by move from drivers/usb

17 years agommc: get back read-only switch function
Pierre Ossman [Wed, 13 Jun 2007 17:06:03 +0000 (19:06 +0200)]
mmc: get back read-only switch function

Somehow the code to read the read-only switch of SD cards got lost
in the reorganisation.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
17 years agommc-omap: fix sd response type 6 vs. 1
Ragner Magalhaes [Wed, 13 Jun 2007 17:09:28 +0000 (19:09 +0200)]
mmc-omap: fix sd response type 6 vs. 1

Ignoring OMAP_MMC_STAT_CARD_ERR, treating it as if the command
completed correctly.

Signed-off-by: Ragner Magalhaes <ragner.magalhaes@indt.org.br>
Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
17 years agoInput: move input-polldev to drivers/input
Dmitry Torokhov [Wed, 13 Jun 2007 05:49:58 +0000 (01:49 -0400)]
Input: move input-polldev to drivers/input

To work around deficiences in Kconfig that allows to "select"
a symbol without automatically selecting all dependencies for
that symbol move input-polldev from drivers/input/misc to
drivers/input thus removing extra dependency on CONFIG_INPUT_MISC.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
17 years agoMerge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
Linus Torvalds [Wed, 13 Jun 2007 03:35:10 +0000 (20:35 -0700)]
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (89 commits)
  myri10ge: update driver version
  myri10ge: report when the link partner is running in Myrinet mode
  myri10ge: limit the number of recoveries
  NetXen: Fix link status messages
  Revert "[netdrvr e100] experiment with doing RX in a similar manner to eepro100"
  [PATCH] libertas: convert libertas_mpp into anycast_mask
  [PATCH] libertas: actually send mesh frames to mesh netdev
  [PATCH] libertas: deauthenticate from AP in channel switch
  [PATCH] libertas: pull current channel from firmware on mesh autostart
  [PATCH] libertas: reduce SSID and BSSID mixed-case abuse
  [PATCH] libertas: remove WPA_SUPPLICANT structure
  [PATCH] libertas: remove structure WLAN_802_11_SSID and libertas_escape_essid
  [PATCH] libertas: tweak association debug output
  [PATCH] libertas: fix big-endian associate command.
  [PATCH] libertas: don't byte-swap firmware version number. It's a byte array.
  [PATCH] libertas: more endianness fixes, in tx.c this time
  [PATCH] libertas: More endianness fixes.
  [PATCH] libertas: first pass at fixing up endianness issues
  [PATCH] libertas: sparse fixes
  [PATCH] libertas: fix character set in README
  ...

17 years agoMerge branch 'master' into upstream-fixes
Jeff Garzik [Wed, 13 Jun 2007 02:34:34 +0000 (22:34 -0400)]
Merge branch 'master' into upstream-fixes

17 years agoMerge branch 'libertas-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linvil...
Jeff Garzik [Wed, 13 Jun 2007 02:27:52 +0000 (22:27 -0400)]
Merge branch 'libertas-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes

17 years agoMerge branch 'libertas' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
Jeff Garzik [Wed, 13 Jun 2007 02:27:30 +0000 (22:27 -0400)]
Merge branch 'libertas' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes

17 years agosysfs: fix race condition around sd->s_dentry, take#2
Tejun Heo [Mon, 11 Jun 2007 05:04:01 +0000 (14:04 +0900)]
sysfs: fix race condition around sd->s_dentry, take#2

Allowing attribute and symlink dentries to be reclaimed means
sd->s_dentry can change dynamically.  However, updates to the field
are unsynchronized leading to race conditions.  This patch adds
sysfs_lock and use it to synchronize updates to sd->s_dentry.

Due to the locking around ->d_iput, the check in sysfs_drop_dentry()
is complex.  sysfs_lock only protect sd->s_dentry pointer itself.  The
validity of the dentry is protected by dcache_lock, so whether dentry
is alive or not can only be tested while holding both locks.

This is minimal backport of sysfs_drop_dentry() rewrite in devel
branch.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agosysfs: fix condition check in sysfs_drop_dentry()
Tejun Heo [Mon, 11 Jun 2007 05:03:27 +0000 (14:03 +0900)]
sysfs: fix condition check in sysfs_drop_dentry()

The condition check doesn't make much sense as it basically always
succeeds.  This causes NULL dereferencing on certain cases.  It seems
that parentheses are put in the wrong place.  Fix it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agosysfs: store sysfs inode nrs in s_ino to avoid readdir oopses
Eric Sandeen [Mon, 11 Jun 2007 05:02:45 +0000 (14:02 +0900)]
sysfs: store sysfs inode nrs in s_ino to avoid readdir oopses

Backport of
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.22-rc1/2.6.22-rc1-mm1/broken-out/gregkh-driver-sysfs-allocate-inode-number-using-ida.patch

For regular files in sysfs, sysfs_readdir wants to traverse
sysfs_dirent->s_dentry->d_inode->i_ino to get to the inode number.
But, the dentry can be reclaimed under memory pressure, and there is
no synchronization with readdir.  This patch follows Tejun's scheme of
allocating and storing an inode number in the new s_ino member of a
sysfs_dirent, when dirents are created, and retrieving it from there
for readdir, so that the pointer chain doesn't have to be traversed.

Tejun's upstream patch uses a new-ish "ida" allocator which brings
along some extra complexity; this -stable patch has a brain-dead
incrementing counter which does not guarantee uniqueness, but because
sysfs doesn't hash inodes as iunique expects, uniqueness wasn't
guaranteed today anyway.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agomyri10ge: update driver version
Brice Goglin [Mon, 11 Jun 2007 18:27:07 +0000 (20:27 +0200)]
myri10ge: update driver version

Update myri10ge driver version to 1.3.1-1.248.

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
17 years agomyri10ge: report when the link partner is running in Myrinet mode
Brice Goglin [Mon, 11 Jun 2007 18:26:50 +0000 (20:26 +0200)]
myri10ge: report when the link partner is running in Myrinet mode

Since Myri-10G boards may also run in Myrinet mode instead of Ethernet,
add a message when we detect that the link partner is not running in the
right mode.

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
17 years agomyri10ge: limit the number of recoveries
Brice Goglin [Mon, 11 Jun 2007 18:26:31 +0000 (20:26 +0200)]
myri10ge: limit the number of recoveries

Limit the number of recoveries from a NIC hw watchdog reset to 1 by default.
It enables detection of defective NICs immediately since these memory parity
errors are expected to happen very rarely (less than once per century*NIC).

Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
17 years agoNetXen: Fix link status messages
Mithlesh Thukral [Mon, 11 Jun 2007 10:30:58 +0000 (03:30 -0700)]
NetXen: Fix link status messages

NetXen: Fix incorrect link status even with switch turned OFF.
NetXen driver failed to accurately indicate when a link is up or down.
This was encountered during failover testing, when the first port
indicated that the link was up even when the 10G switch it was assigned
to in the Bladecenter was turned off completely.

Signed-off by: Wen Xiong <wenxiong@us.ibm.com>
Signed-off by: Mithlesh Thukral <mithlesh@netxen.com>

Signed-off-by: Jeff Garzik <jeff@garzik.org>
17 years agoRevert "[netdrvr e100] experiment with doing RX in a similar manner to eepro100"
Jeff Garzik [Tue, 12 Jun 2007 22:52:31 +0000 (18:52 -0400)]
Revert "[netdrvr e100] experiment with doing RX in a similar manner to eepro100"

This reverts commit d52df4a35af569071fda3f4eb08e47cc7023f094.

This patch attempted to fix e100 for non-cache coherent memory
architectures by using the cb style code that eepro100 had and using
the EL and s bits from the RFD list. Unfortunately the hardware
doesn't work exactly like this and therefore this patch actually
breaks e100. Reverting the change brings it back to the previously
known good state for 2.6.22. The pending rewrite in progress to this
code can then be safely merged later.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
17 years ago[PATCH] libertas: convert libertas_mpp into anycast_mask
Luis Carlos [Thu, 7 Jun 2007 20:40:59 +0000 (16:40 -0400)]
[PATCH] libertas: convert libertas_mpp into anycast_mask

With firmware 5.220.11.p5, this allows to specify the anycast addresses the
device will listen to.

The anycast address range is C0:27:C0:27:C0:XX where XX goes from 00 to 1F (or
0 to 31 in dec). The value to write on anycast_mask will specify which
addresses the device listens to. Bits in a 32 bit int are numbered from 0
(least significative bit) to 31. A specific address ending in YY will be
listened to if bit YY in the value is set to one.

Examples:

0x00000000 : do not listen to any anycast address
0xFFFFFFFF : listen to every anycast address from :00 to :1F
0x00000013 : listen to anycast addresses :00, :01 and :04

Signed-off-by: Luis Carlos Cobo <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: actually send mesh frames to mesh netdev
Dan Williams [Tue, 5 Jun 2007 00:05:23 +0000 (20:05 -0400)]
[PATCH] libertas: actually send mesh frames to mesh netdev

Found by Luis; got broken during module split.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: deauthenticate from AP in channel switch
Luis Carlos Cobo Rus [Wed, 30 May 2007 16:16:13 +0000 (12:16 -0400)]
[PATCH] libertas: deauthenticate from AP in channel switch

This avoids channel mismatch between driver and firmware in case we change
channel while associated to an AP.

Signed-off-by: Luis Carlos Cobo Rus <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: pull current channel from firmware on mesh autostart
Luis Carlos Cobo Rus [Wed, 30 May 2007 16:14:34 +0000 (12:14 -0400)]
[PATCH] libertas: pull current channel from firmware on mesh autostart

Signed-off-by: Luis Carlos Cobo Rus <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years agoInput: i8042 - add ULI EV4873 to noloop list
Dmitry Torokhov [Tue, 12 Jun 2007 04:33:32 +0000 (00:33 -0400)]
Input: i8042 - add ULI EV4873 to noloop list

The box does not implement AUX LOOP command properly and so we
can't test for AUX IRQ delivery so blacklist it via DMI and
assume that AUX port is present.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
17 years agoInput: i8042 - add ASUS P65UP5 to the noloop list
Dmitry Torokhov [Tue, 12 Jun 2007 04:33:27 +0000 (00:33 -0400)]
Input: i8042 - add ASUS P65UP5 to the noloop list

This board does not raise AUX IRQ in response to AUX LOOP command
which interferes with our test for proper AUX IRQ wiring. Put it
in the blacklist and assume mouse is present.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
17 years agoInput: usbtouchscreen - fix fallout caused by move from drivers/usb
Ondrej Zary [Tue, 12 Jun 2007 04:33:13 +0000 (00:33 -0400)]
Input: usbtouchscreen - fix fallout caused by move from drivers/usb

During the move from drivers/usb/input into drivers/input/touchscreen
Kconfig variables were shuffled a bit to use a new namespace
(CONFIG_TOUCHSCREEN) while usbtouchscreen was still using old ones.

Also noticed by Robert P. J. Day <rpjday@mindspring.com>

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
17 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Mon, 11 Jun 2007 22:46:08 +0000 (15:46 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/mlx4: Make sure RQ allocation is always valid
  RDMA/cma: Fix initialization of next_port
  IB/mlx4: Fix zeroing of rnr_retry value in ib_modify_qp()
  mlx4_core: Don't set MTT address in dMPT entries with PA set
  mlx4_core: Check firmware command interface revision
  IB/mthca, mlx4_core: Fix typo in comment
  mlx4_core: Free catastrophic error MSI-X interrupt with correct dev_id
  mlx4_core: Initialize ctx_list and ctx_lock earlier
  mlx4_core: Fix CQ context layout

17 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Mon, 11 Jun 2007 18:41:00 +0000 (11:41 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Fix smp barriers in test_and_{change,clear,set}_bit
  [MIPS] Fix IP27 build
  [MIPS] Fix modpost warnings by making start_secondary __cpuinit
  [MIPS] SMTC: Fix build error caused by nonsense code.
  [MIPS] SMTC: The MT ASE requires to initialize c0_pagemask and c0_wired.
  [MIPS] SMTC: Don't continue in set_vi_srs_handler on detected bad arguments.
  [MIPS] SMTC: Fix warning.
  [MIPS] Wire up utimensat, signalfd, timerfd, eventfd
  [MIPS] Atlas: Fix build.
  [MIPS] Always install the DSP exception handler.
  [MIPS] SMTC: Don't set and restore irqregs ptr from self_ipi.
  [MIPS] Fix KMODE for the R3000

17 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Mon, 11 Jun 2007 18:39:25 +0000 (11:39 -0700)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] CIFS should honour umask
  [CIFS] Missing flag on negprot needed for some servers to force packet signing
  [CIFS] whitespace cleanup part 2
  [CIFS] whitespace cleanup
  [CIFS] fix mempool destroy done in wrong order in cifs error path
  [CIFS] typo in previous patch
  [CIFS] Fix oops on failed cifs mount (in kthread_stop)

17 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart
Linus Torvalds [Mon, 11 Jun 2007 18:39:05 +0000 (11:39 -0700)]
Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart

* master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart:
  [AGPGART] intel_agp: Add support for G33, Q33 and Q35 chipsets
  [AGPGART] intel_agp: add support for 945GME
  [AGPGART] intel_agp: add support for 965GME/GLE
  [AGPGART] intel_agp: use table for device probe
  [AGPGART] intel_agp: cleanup intel private data

17 years agoMerge branch 'linus-plus-plus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
Linus Torvalds [Mon, 11 Jun 2007 18:38:14 +0000 (11:38 -0700)]
Merge branch 'linus-plus-plus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev

* 'linus-plus-plus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: limit post SRST nsect/lbal wait to ~100ms
  libata: force PIO on IOMEGA ZIP 250 ATAPI
  libata passthru: update cached device paramters
  libata passthru: always enforce correct DEV bit
  libata passthru: map UDMA protocols
  libata passthru: support PIO multi commands
  libata passthru: update protocol numbers
  libata: Correct abuse of language
  libata-core/sff: Fix multiple assumptions about DMA
  ahci: Add MCP73/MCP77 support to AHCI driver
  libata: fix hw_sata_spd_limit initialization
  libata: print device model and firmware revision for ATAPI devices
  libata: fix probe time irq printouts
  libata: disable NCQ for HITACHI HTS541680J9SA00/SB21C7EP
  remove unused variable in pata_isapnp

17 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
Linus Torvalds [Mon, 11 Jun 2007 18:32:28 +0000 (11:32 -0700)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb:
  V4L/DVB (5751): Ivtv: fix ia64 printk format warnings.
  V4L/DVB (5761): Fix broken b2c2 dependency on non x86 architectures
  V4L/DVB (5673): Fix audio stuttering for saa711x/ivtv when in radio mode.
  V4L/DVB (5736): Add V4L2_FBUF_CAP/FLAG_LOCAL/GLOBAL_INV_ALPHA
  V4L/DVB (5732): Add ivtv CROPCAP support and fix ivtv S_CROP for video output.
  V4L/DVB (5730): Remove unused V4L2_CAP_VIDEO_OUTPUT_POS
  V4L/DVB (5720): Usbvision: fix urb allocation and submits
  V4L/DVB (5716): Tda10086,tda826x: fix tuning, STR/SNR values
  V4L/DVB (5675): Move big PIO accesses from the interrupt handler to a workhandler
  V4L/DVB (5699): Cinergyt2: fix file release handler
  V4L/DVB (5700): Saa7111: fix picture settings cache bug
  V4L/DVB (5702): Fix Kconfig items to avoid linkedition errors

17 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Mon, 11 Jun 2007 18:31:43 +0000 (11:31 -0700)]
Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6:
  ide: Add the MCP73/77 support to PATA driver
  Add the PATA controller device ID to pci_ids.h for MCP73/MCP77.
  hpt366: disallow Ultra133 for HPT374
  ide: generic IDE PCI driver, add another device exception
  ide: HPA detect from resume
  it821x: RAID mode fixes
  serverworks: fix CSB6 tuning logic
  serverworks: remove crappy code

17 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
Linus Torvalds [Mon, 11 Jun 2007 18:31:18 +0000 (11:31 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
  mmc: don't call switch on old cards
  mmc: fix broken if clause
  au1xmmc: Replace C code with call to ARRAY_SIZE() macro.
  mmc-atmel: remove linux/mmc/protocol.h dependencies

17 years agoMerge branch 'splice-2.6.22' of git://git.kernel.dk/data/git/linux-2.6-block
Linus Torvalds [Mon, 11 Jun 2007 18:31:05 +0000 (11:31 -0700)]
Merge branch 'splice-2.6.22' of git://git.kernel.dk/data/git/linux-2.6-block

* 'splice-2.6.22' of git://git.kernel.dk/data/git/linux-2.6-block:
  splice: __generic_file_splice_read: fix read/truncate race
  splice: __generic_file_splice_read: fix i_size_read() length checks
  splice: move balance_dirty_pages_ratelimited() outside of splice actor
  pipe: move pipe_inode_info structure decleration up before it's used
  splice: remove do_splice_direct() symbol export
  splice: move inode size check into generic_file_splice_read()

17 years ago[PATCH] libertas: reduce SSID and BSSID mixed-case abuse
Dan Williams [Tue, 29 May 2007 04:03:31 +0000 (00:03 -0400)]
[PATCH] libertas: reduce SSID and BSSID mixed-case abuse

Kill mixed case function names from scan.c/scan.h.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: remove WPA_SUPPLICANT structure
Dan Williams [Tue, 29 May 2007 03:56:10 +0000 (23:56 -0400)]
[PATCH] libertas: remove WPA_SUPPLICANT structure

Unused.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: remove structure WLAN_802_11_SSID and libertas_escape_essid
Dan Williams [Tue, 29 May 2007 03:54:55 +0000 (23:54 -0400)]
[PATCH] libertas: remove structure WLAN_802_11_SSID and libertas_escape_essid

Replace WLAN_802_11_SSID with direct 'ssid' and 'ssid_len' members
like ieee80211.  In the process, remove private libertas_escape_essid
and depend on the ieee80211 implementation of escape_essid instead.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: tweak association debug output
Dan Williams [Sat, 26 May 2007 03:51:12 +0000 (23:51 -0400)]
[PATCH] libertas: tweak association debug output

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: fix big-endian associate command.
David Woodhouse [Sat, 26 May 2007 03:41:16 +0000 (23:41 -0400)]
[PATCH] libertas: fix big-endian associate command.

Byte-swapping length fields and then passing them to memcpy() considered
harmful.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: don't byte-swap firmware version number. It's a byte array.
David Woodhouse [Sat, 26 May 2007 03:40:21 +0000 (23:40 -0400)]
[PATCH] libertas: don't byte-swap firmware version number. It's a byte array.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: more endianness fixes, in tx.c this time
David Woodhouse [Sat, 26 May 2007 03:39:34 +0000 (23:39 -0400)]
[PATCH] libertas: more endianness fixes, in tx.c this time

Now we finally get connectivity. For a while, before something else dies...

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: More endianness fixes.
David Woodhouse [Sat, 26 May 2007 03:38:14 +0000 (23:38 -0400)]
[PATCH] libertas: More endianness fixes.

Now it at least manages to load the firmware.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: first pass at fixing up endianness issues
David Woodhouse [Sat, 26 May 2007 03:36:54 +0000 (23:36 -0400)]
[PATCH] libertas: first pass at fixing up endianness issues

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: sparse fixes
Dan Williams [Sat, 26 May 2007 03:23:43 +0000 (23:23 -0400)]
[PATCH] libertas: sparse fixes

Fix various issues reported by sparse.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: fix character set in README
David Woodhouse [Sat, 26 May 2007 03:15:27 +0000 (23:15 -0400)]
[PATCH] libertas: fix character set in README

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: support for mesh autostart on firmware 5.220.11
Luis Carlos Cobo Rus [Sat, 26 May 2007 03:12:19 +0000 (23:12 -0400)]
[PATCH] libertas: support for mesh autostart on firmware 5.220.11

Signed-off-by: Luis Carlos Cobo Rus <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: split wext for eth and msh
Luis Carlos Cobo Rus [Sat, 26 May 2007 03:08:34 +0000 (23:08 -0400)]
[PATCH] libertas: split wext for eth and msh

Separate wireless handlers of mshX and ethX. ethX remains as before.

For mshX, it has been disabled set/get essid, wap and set mode. Get mode always
returns "Repeater" and by now we use the Nickname to show if the mesh is active
("Mesh") or not (empty). The rest remains as before.

Signed-off-by: Luis Carlos Cobo Rus <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: make mac address configuration work with mesh interface too
Luis Carlos Cobo Rus [Sat, 26 May 2007 03:05:27 +0000 (23:05 -0400)]
[PATCH] libertas: make mac address configuration work with mesh interface too

Signed-off-by: Luis Carlos Cobo Rus <luiscarlos@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: updated readme file
Luis Carlos Cobo Rus [Sat, 26 May 2007 03:04:13 +0000 (23:04 -0400)]
[PATCH] libertas: updated readme file

Fix some wording and blinding table command options, clarify argument list for
fwt_add and fwt_list, simplify fwt_list_route

Signed-off-by: Luis Carlos Cobo Rus <luisca@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: Make WPA work through supplicant handshake
Dan Williams [Sat, 26 May 2007 03:01:24 +0000 (23:01 -0400)]
[PATCH] libertas: Make WPA work through supplicant handshake

Fix WPA so it works up through the supplicant 4-Way handshake process.
Doesn't successfully pass traffic yet; may be problems installing
the GTK to the firmware.

- RSN needs to be enabled before the association command is sent
- Use keys from the association request not the adapter structure
- cmd_act_mac_strict_protection_enable != IW_AUTH_DROP_UNENCRYPTED
- Fix network filtering logic in is_network_compatible() WPA helpers

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: add more verbose debugging to libertas_cmd_80211_authenticate
Dan Williams [Sat, 26 May 2007 02:58:55 +0000 (22:58 -0400)]
[PATCH] libertas: add more verbose debugging to libertas_cmd_80211_authenticate

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: debug print spacing fixes in assoc.c
Dan Williams [Sat, 26 May 2007 02:54:50 +0000 (22:54 -0400)]
[PATCH] libertas: debug print spacing fixes in assoc.c

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: send SIOCGIWSCAN event after partial scans too
Dan Williams [Sat, 26 May 2007 02:38:41 +0000 (22:38 -0400)]
[PATCH] libertas: send SIOCGIWSCAN event after partial scans too

Any time the driver gets new scan results, even from partial scans,
it should send the scan event to userspace.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
17 years ago[PATCH] libertas: honor specific channel requests during association
Dan Williams [Sat, 26 May 2007 02:30:48 +0000 (22:30 -0400)]
[PATCH] libertas: honor specific channel requests during association

Previously if a fixed channel was specified along with an SSID,
the channel request would be ignored during the association
process.  Instead, when searching for an adhoc or infrastructure
network to join, allow filtering results based on channel so
that the driver doesn't pick a BSS on a different channel than
requested.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>