Since it is way more work to change most drivers to comply with parisc, take
the easy way out and make ioremap _NO_CACHE by default. This is in line with
what powerpc does.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Most are easy, but sync_file_range needed special handling when entering
through the 32-bit syscall table.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
More work towards supporing multiple page sizes on 64-bit. Convert
some assumptions that 64bit uses 3 level page tables into testing
PT_NLEVELS. Also some BUG() to BUG_ON() conversions and some cleanups
to assembler.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Make the defconfig more generally useful. Turn on IPv6, modules,
cardbus, etc. Boots 32bit on 715 with HIL, B160L with sound,
PrecisionBook, and C3000.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
This means "DMA Read returns" can bypass "MMIO Writes".
Violating the PCI specs in this case improves outbound DMA "flows"
and is currently not required by any drivers.
This is NOT a new behavior. Previous chipsets did this
already and I believe ZX1 PDC was already setting this
for hpux. I just want to further document the behavior.
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Seems like a strange requirement, but allegedly it was necessary for
struct address_space on CRIS, because it otherwise ended up being only
byte-aligned. It's harmless enough, and easier to just do it than to
prove it isn't necessary... although I really ought to dig out my etrax
board and test it some time.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Unless Posix paths have been negotiated, the backslash, "\", is not a valid
character in a path component.
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
SERIAL_SGI_IOC4 and BLK_DEV_SGIIOC4 depend upon SGI_IOC4, and
SERIAL_SGI_IOC3 depends upon SGI_IOC3. Currently the definitions
are out of order in the config sequence.
Fix by including drivers/sn/Kconfig immediately after SGI_SN,
upon which SGI_IOC4 and SGI_IOC3 depend.
Signed-off-by: Brent Casavant <bcasavan@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
RECLAIM_DISTANCE is checked on bootup against the SLIT table distances.
Zone reclaim is important for system that have higher latencies but not for
systems that have multiple nodes on one motherboard and therefore low latencies.
We found that on motherboard latencies are typically 1 to 1.4 of local memory
access speed whereas multinode systems which benefit from zone reclaim have
usually more than 1.5 times the latency of a local access.
Set the reclaim distance for IA64 to 1.5 times.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
We only used a single bit for colour information, so having a whole
machine word of space allocated for it was a bit wasteful. Instead,
store it in the lowest bit of the 'parent' pointer, since that was
always going to be aligned anyway.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This fixes an oops in 2.6.16.X when loading the snd_powermac module. The
name of the requested module changed during the 2.6.16 development cycle
from i2c-keylargo to i2c-powermac.
Signed-off-by: Guido Guenther <agx@sigxcpu.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Fix asm_offsets.c and entry.S to work with the new power save code.
Changes in arch/powerpc needed to exist in arch/ppc as well since the
idle code is shared by both ppc and powerpc..
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Every time a new syscall gets added, a BUILD_BUG_ON in
arch/powerpc/platforms/cell/spu_callbacks.c gets triggered.
Since the addition of a new syscall is rather harmless,
the error should just be removed.
While we're here, add sys_tee to the list and add a comment
to systbl.S to remind people that there is another list
on powerpc.
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Observe rb_erase(), when the victim node 'old' has two children so
neither of the simple cases at the beginning are taken.
Observe that it effectively does an 'rb_next()' operation to find the
next (by value) node in the tree. That is; we go to the victim's
right-hand child and then follow left-hand pointers all the way
down the tree as far as we can until we find the next node 'node'. We
end up with 'node' being either the same immediate right-hand child of
'old', or one of its descendants on the far left-hand side.
For a start, we _know_ that 'node' has a parent. We can drop that check.
We also know that if 'node's parent is 'old', then 'node' is the
right-hand child of its parent. And that if 'node's parent is _not_
'old', then 'node' is the left-hand child of its parent.
So instead of checking for 'node->rb_parent == old' in one place and
also checking 'node's heritage separately when we're trying to change
its link from its parent, we can shuffle things around a bit and do
it like this...
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
The new i2c implementation for PowerMac has a regression that causes the
hardware to go out of state when probing non-existent devices. While
fixing that, I also found & fixed a couple of other corner cases. This
fixes booting with a pbbuttons version that scans the i2c bus for an LMU
controller among others. Tested on a dual G5 with thermal control (which
has heavy i2c activity) with no problem so far.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Turn on the DART already at 1GB. This is needed because of crippled
devices in some systems, i.e. Airport Extreme cards, only supporting
30-bit DMA addresses.
Otherwise, users with between 1 and 2GB of memory will need to manually
enable it with iommu=force, and that's no good.
Some simple performance tests show that there's a slight impact of
enabling DART, but it's in the 1-3% range (kernel build with disk I/O
as well as over NFS).
iommu=off can still be used for those who don't want to deal with the
overhead (and don't need it for any devices).
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Some devices don't support full 32-bit DMA address space, which we currently
assume. Add the required mask-passing to the IOMMU allocators.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
They were abusing the rb_color field to mark nodes which weren't currently
on the tree. Fix that to use the same method as eventpoll did -- setting
the parent pointer to point back to itself. And use the appropriate
accessor macros for setting and reading the parent.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This is in preparation for merging those fields into a single
'unsigned long', because using a whole machine-word for a single bit
of colour information is wasteful.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This patch removes following compile time warnings:
drivers/pci/pci-sysfs.c: In function `pci_read_legacy_io':
drivers/pci/pci-sysfs.c:257: warning: implicit declaration of function `ia64_pci_legacy_read'
drivers/pci/pci-sysfs.c: In function `pci_write_legacy_io':
drivers/pci/pci-sysfs.c:280: warning: implicit declaration of function `ia64_pci_legacy_write'
It also fixes wrong definition of ia64_pci_legacy_write (type of `bus' is not
`pci_dev', but `pci_bus').
Signed-Off-By: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This is a trivial patch to remove following compile time warning:
arch/ia64/ia32/../../../fs/binfmt_elf.c:508: warning: 'randomize_stack_top' defined but not used
Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
The SGI Altix SAL provides an interface for modifying
the ECC on memory to create memory errors. The SAL call
can be used to inject memory errors for testing MCA recovery
code.
Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
Adds AHCI support for the VIA VT8251.
Includes a workaround for a hardware bug which requires a Command List
Override before softreset.
Signed-off-by: Bastiaan Jacques <b.jacques@planet.nl>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch fixes several bugs in the gianfar driver, including a major one
where spinlocks were horribly broken:
* Split gianfar locks into two types: TX and RX
* Made it so gfar_start() now clears RHALT
* Fixed a bug where calling gfar_start_xmit() with interrupts off would
corrupt the interrupt state
* Fixed a bug where a frame could potentially arrive, and never be handled
(if no more frames arrived
* Fixed a bug where the rx_work_limit would never be observed by the rx
completion code
* Fixed a bug where the interrupt handlers were not actually protected by
their spinlocks
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Folks,
This patch (against 2.6.17-rc1) converts the cassini driver to the
pci_iomap API that will do the right thing, so architectures like
PARISC can stop screaming about illegal usage of ioremap() on
non-cacheable regions.
Tested on 64bit PARISC kernel.
Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
>
> The patch was badly wordwrapped. Please fix and resend.
>
OK, I've fixed the wrapping and removed the CONFIG_ARM restriction. I've also did my
best to modify the C style to conform to the comments.
I noticed that the patch is getting ignored by majordomo due to its size >100K.
Should it be broken up somehow to allow posting to the lists?
Signed-off-by: Dustin McIntire <dustin@sensoria.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Straighten up the AMD Au1xx0 Ethernet probing code, make it print out (and
store in the 'net_device' structure) the physical address of the controller,
not the KSEG1-based virtual. Make the driver also claim/release the 4-byte MAC
enable registers and assign to the Ethernet ports two consecutive MAC
addresses to match those that are printed on their stickers.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
In a short discussion with Benjamin Herrenschmidt he mentioned
that Marvell PHYs are powered down the same way as the other
ones we currently handle. Thus actually do that, hopefully
saving some power during suspend.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The attached patch adds support for VLANs to the sis900 driver and bumps
the version number. It is based on an old (2003) patch for the 2.4
series by Hamid Hashemi Golpayegani. It applies on top of 2.6.16(.5).
I have one report that it works and behaves as intended.
Please review and consider for inclusion.
Signed-off-by: Daniele Venzano <venza@brownhat.org>
--
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Correct the base address of the Realtek RTL8019AS chip on the Toshiba RBTX4938
board -- this should make the driver work at least when CONFIG_PCI is enabled.
Signed-off-by: Yuri Shpilevsky <yshpilevsky@ru.mvista.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Hi,
here comes the second of the two patches ...
Frank
From: Peter Tiedemann <ptiedem@de.ibm.com>
[2/2]: remove ctctty.c and ctctty.h files .
Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
