This adds a cputable function pointer for the CPU-side machine
check handling. The semantic is still the same as the old one,
the one in ppc_md. overrides the one in cputable, though
ultimately we'll want to change that so the CPU gets first.
This removes CONFIG_440A which was a problem for multiplatform
kernels and instead fixes up the IVOR at runtime from a setup_cpu
function. The "A" version of the machine check also tweaks the
regs->trap value to differenciate the 2 versions at the C level.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
attached please find a new device ID for CP2101 driver. This device is a
usb stick from Dynastream to communicate with ANT wireless devices which
I suppose is fairly similar to the ANT dev board having product id 0x1003.
From: Martin Kusserow <kusserow@ife.ee.ethz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Adds VID/PID for the MC8775 found internally in the Thinkpad X61s laptop
(and likely others). For commercial reasons the driver maintainer cannot
add VID/PIDs for laptop OEM devices himself.
Signed-off-by: Kevin R Page <linux-kernel@krp.org.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Due to the change in kobject name handling, the module kobject needs to
have a null release function to ensure that the name it previously set
will be properly cleaned up.
All of this wierdness goes away in 2.6.25 with the rework of the kobject
name and cleanup logic, but this is required for 2.6.24.
Thanks to Alexey Dobriyan for finding the problem, and to Kay Sievers
for pointing out the simple way to fix it after I tried many complex
ways.
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds an entry for the Userspace I/O framework to MAINTAINERS.
Signed-off-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Initially transmit buffer pointers were only reset. But buffer
descriptors were possibly still set as ready, and buffer in upper
layer was not freed. This caused driver hang under big load. Now
reset clean properly the buffer descriptor and freed upper layer.
Signed-off-by: Gregory CLEMENT <gclement00@gmail.com>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Same story as with olympic - htons(readw()) when swab16(readw()) is needed,
missing conversions to le32 when dealing with shared descriptors, etc.
Olympic got those fixes in 2.4.0-test2, 3c359 didn't.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
If you need to find a difference between addresses of two
struct members, subtract offsetof() or cast addresses to
char * and subtract those if you prefer it that way. Doing
that same with s/char */u32/, OTOH...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Both store MAC address in CIS; there's no decoder for that
type (0x88) so the drivers work with raw data. It is
byteswapped, so ntohs() works for little-endian, but for
big-endian it's wrong. ntohs(le16_to_cpu()) does the
right thing on both (and always expands to swab16()).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
* shift before cpu_to_le64(), not after it
* writel() converts to l-e itself
* misc missing conversions
* in set_multicast() hash_table[] is host-endian; we feed it to card
via writel() and populate it as host-endian, so we'd better put the
first element into it also in host-endian
* pci_unmap_single() et.al. expect host-endian, not little-endian
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
pci_unmap_single() and friends getting a little-endian address...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
* usb_control_message() to/from stack (breaks on e.g. arm); some
places did kmalloc() for buffer, some just worked from stack.
Added kmalloc()/memcpy()/kfree() in asix_read_cmd()/asix_write_cmd(),
removed that crap from callers.
* Fixed a leak in ax88172_bind() - on success it forgot to kfree() the
buffer.
* Endianness bug in ax88178_bind() - we read a word from eeprom and work with
it without converting to host-endian
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
txlo_dma_addr should be host-endian; we pass it to typhoon_tso_fill(),
which does arithmetics on it, converts to l-e and passes it to card.
Unfortunately, we forgot le32_to_cpu() when initializing it from
face->txLoAddr, which sits in shared memory and is little-endian.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
rxBuffCleared is little-endian; we miss le32_to_cpu() in checks for
rx ring overruns.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
One cpu_to_le16() too many when passing argument for TYPHOON_CMD_XCVR_SELECT;
we end up passing host-endian while the hardware expects little-endian. The
other place doing that (typhoon_start_runtime()) does the right thing, so the
card will recover at the next ifconfig up/tx timeout/resume, which limits the
amount of mess, but still, WTF?
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
in typhoon_get_drvinfo() .parm2 is little-endian; not critical
since we just get the firmware id flipped in get_drvinfo output
on big-endian boxen, but...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
txBytes and rxBytesGood are both 64bit; using le32_to_cpu() won't work
on big-endian for obvious reasons.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Increase the mininum number of partial slabs to keep around and put
partial slabs to the end of the partial queue so that they can add
more objects.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Maple and pasemi both require PCI as does CONFIG_OF_PLATFORM_PCI.
The default setting of CONFIG_ISA_DMA_API is set to match the protection
around the relevant routines in asm/dma.h.
I also had to remove the PMAC platform from the combined build. The
precis is that to build a 64 bit kernel with no PCI, you can only include
pSeries and iSeries.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Fixes this warning:
arch/powerpc/platforms/powermac/pci.c: In function 'u3_ht_cfg_access':
arch/powerpc/platforms/powermac/pci.c:354: warning: return discards qualifiers from pointer target type
arch/powerpc/platforms/powermac/pci.c:358: warning: return discards qualifiers from pointer target type
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This will allow us to declare const all the statically declared arrrays
of these.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The 32-bit PCI code tests if "bus" is non-NULL after calling
pci_scan_bus_parented() in one place but not another before
dereferencing it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This fixes a few issues with via-pmu based backlight control.
First, it fixes a sign problem with the setup of the backlight
curve since the `range' value there -can- (and will) go negative.
Then, it reworks the interaction between this and the via-pmu sleep
code to properly restore backlight on wakeup from sleep.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
These hooks ensure that a decrementer interrupt is not pending when
suspending; otherwise, problems may occur on 6xx/7xx/7xxx-based
systems (except for powermacs, which use a separate suspend path).
For example, with deep sleep on the 831x, a pending decrementer will
cause a system freeze because the SoC thinks the decrementer interrupt
would have woken the system, but the core must have interrupts
disabled due to the setup required for deep sleep.
Changed via-pmu.c to use the new ppc_md hooks, and made the arch_*
functions call the generic_* functions unconditionally. -- paulus
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
[ Regression added by changeset:
cd40b7d398
[NET]: make netlink user -> kernel interface synchronious
-DaveM ]
nl_fib_input re-reuses incoming skb to send the reply. This means that this
packet will be freed twice, namely in:
- netlink_unicast_kernel
- on receive path
Use clone to send as a cure, the caller is responsible for kfree_skb on error.
Thanks to Alexey Dobryan, who originally found the problem.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Based on an original patch from Arnd Bergmann
<arnd.bergmann@de.ibm.com>
If there's no entry in the mailbox, then a read on the _info file will
return data from an uninitialised variable.
This change returns EOF if there's no mailbox info available instead.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This fixes the behavior of spufs when a spu tries a DMA operation
based on a wrong / unavailable address.
Instead of just generating a SIGBUS signal, spufs now
generates a SIGSEGV signal and restarts the problematic DMA operation
after the execution of the application's signal handler. This allows
applications to employ user-level paging systems.
Although the restart_dma function is called before the application's
signal handler, the operation is not actually performed at this time,
since the spu context is already stopped. The operation only takes
place when spu_run is restarted (which happens automatically).
Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The original spusched_timer was designed to take effect only when
a context is waiting in the runqueue.
This change adds an additional lower-freq timer has been added to
purely handle the spu_load updates. The new timer will be triggered
per LOAD_FREQ ticks.
Signed-off-by: Aegis Lin <aegislin@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Make most places that use spu_acquire/spu_acquire_saved interruptible,
this allows getting out of the spufs code when e.g. pressing ctrl+c.
There are a few places where we get called e.g. from spufs teardown
routines were we can't simply err out so these are left with a comment.
For now I've also not touched the poll routines because it's open what
libspe would expect in terms of interrupted system calls.
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The simple attr macros currently used by spufs can't deal with the
handlers returning errors, which is required to make the state_mutex
interruptible. This adds a local copy that allows for an error
return from the get/set handlers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Change spufs_spu_run so that the context is queued directly to the
scheduler and the controlling thread advances directly to spufs_wait()
for spe errors and exceptions.
nosched contexts are treated the same as before.
Fixes from Christoph Hellwig <hch@lst.de>
Signed-off-by: Luke Browning <lukebr@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This changes the spu context switch code to not write to reserved bits
of spu interrupt status register.
The architecture book says the reserved fields should be set to zero.
Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Need to re-check priority after dropping lock. Otherwise, a
more favored context may be preempted.
Signed-off-by: Luke Browning <lukebr@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This cleans up spu_run_init so that it does all of the spu
initialization for spufs_run_spu. It initializes the spu context as
much as possible before it activates the spu and writes the runcntl
register.
Signed-off-by: Luke Browning <lukebr@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Based on original patches from
Arnd Bergmann <arnd.bergman@de.ibm.com>; and
Luke Browning <lukebr@linux.vnet.ibm.com>
Currently, spu contexts need to be loaded to the SPU in order to take
class 0 and class 1 exceptions.
This change makes the actual interrupt-handlers much simpler (ie,
set the exception information in the context save area), and defers the
handling code to the spufs_handle_class[01] functions, called from
spufs_run_spu.
This should improve the concurrency of the spu scheduling leading to
greater SPU utilization when SPUs are overcommited.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Add a few #defines for the class 0, 1 and 2 interrupt status bits, and
use them instead of magic numbers when we're setting or checking for
these interrupts.
Also, add a #define for the class 2 mailbox threshold interrupt mask.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
When doing a poll on the mbox stat file of a swapped-out context, we
clear the class 0 interrupt status, rather than the class 2 interrupt
status.
This change corrects the poll operation to clear the correct interrupt.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This change encapsulates the spu_privcntl_RW register so that it can
be written through backing ops. This is necessary so that spu contexts
can be initialized and queued to the scheduler in spufs_run_spu.
Signed-off-by: Luke Browning <lukebr@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This change disables the logic that faults-in spu contexts under the
covers from the page fault handler. When a fault requires a runnable
context, the handler will block until the context is scheduled by
other means.
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>