David Gibson [Fri, 9 Dec 2005 03:20:52 +0000 (14:20 +1100)]
[PATCH] powerpc: Add missing icache flushes for hugepages
On most powerpc CPUs, the dcache and icache are not coherent so
between writing and executing a page, the caches must be flushed.
Userspace programs assume pages given to them by the kernel are icache
clean, so we must do this flush between the kernel clearing a page and
it being mapped into userspace for execute. We were not doing this
for hugepages, this patch corrects the situation.
We use the same lazy mechanism as we use for normal pages, delaying
the flush until userspace actually attempts to execute from the page
in question.
Tested on G5.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Olof Johansson [Fri, 9 Dec 2005 01:40:17 +0000 (19:40 -0600)]
[PATCH] powerpc: Set cache info defaults
Cache info is setup by walking the device tree in initialize_cache_info().
However, icache_flush_range might be called before that, in
slb_initialize()->patch_slb_encoding, which modifies the load immediate
instructions used with SLB fault code.
Not only that, but depending on memory layout, we might take SLB faults
during unflatten_device_tree. So that fault will load an SLB entry that
might not contain the right LLP flags for the segment.
Either we can walk the flattened device tree to setup cache info, or
we can pick the known defaults that are known to work. Doing it in the
flattened device tree is hairier since we need to know the machine type
to know what property to look for, etc, etc.
For now, it's just easier to go with the defaults. Worst thing that
happens from it is that we might waste a few cycles doing too small
dcbst/icbi increments.
Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
model_id fields of wf_smu_sys_all_params should match the model ID
they are supposed to represent (as commented). Fixes windfarm on some
iMac 8,1 models.
Signed-off-by: Michal Ostrowski <mostrows at watson ibm com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Some debug code wasn't properly removed from the initial 64k pages
patch, and while it's harmless, it's also slowing down significantly a
very hot code path, thus it should really be removed.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
The 64k pages patch changed the meaning of one argument passed to the
low level hash functions (from "large" it became "psize" or page size
index), but one of the call sites wasn't properly updated, causing
potential random weird problems with huge pages. This fixes it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Mike Kravetz [Wed, 7 Dec 2005 21:07:23 +0000 (13:07 -0800)]
[PATCH] powerpc/pseries: boot failures on numa if no memory on node
This bug exists in the current code and prevents machines from booting
with numa enabled if there is a node that does not contain memory.
Workaround is to boot with 'numa=off'. Looks like a simple typo.
Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Olof Johansson [Tue, 29 Nov 2005 20:04:17 +0000 (14:04 -0600)]
[PATCH] powerpc: remove redundant code in stab init
There's never been a hardware platform that has both pSeries/RPA LPAR
hypervisor and stab (pre-POWER4 segment management). This removes
the redundant code in stab_initalize().
Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
Paul Mackerras [Mon, 5 Dec 2005 03:39:53 +0000 (14:39 +1100)]
ppc: Build in all three of powermac, PREP and CHRP support
This reverts commit da0825fd201a03294dbf7f8f030676d608da122c, making
it so that if you select CONFIG_PPC_MULTIPLATFORM you get support
for PMAC, PREP and CHRP built in.
The reason for not allowing PMAC, PREP and CHRP to be selected
individually for ARCH=ppc is that there is too much interdependency
between them in the platform support code. For example, CHRP uses
the PMAC nvram code.
Configuring with ARCH=powerpc does allow you to select support for
PMAC and CHRP separately. Support for PREP is not there yet but
should be there soon.
Paul Mackerras [Mon, 5 Dec 2005 03:19:10 +0000 (14:19 +1100)]
powerpc/pseries: Optimize IOMMU setup
The previous commit will use the page-at-a-time hypervisor call for
setting up IOMMU entries when we are using 64k pages and setting up
one 64k page, even though that means 16 calls to the hypervisor, since
the hypervisor still works on 4k pages. This optimizes this case by
using the multi-page IOMMU setup hypervisor call instead.
[PATCH] powerpc/pseries: Fix TCE building with 64k pagesize
Must adjust tcenum and npages by TCE_PAGE_FACTOR to convert between
64KB pages and TCE (4K) pages. (This is done in other places, except
for this one location.)
Signed-off-by: Michal Ostrowski <mostrows at watson ibm com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Mike Isely [Thu, 1 Dec 2005 08:52:04 +0000 (00:52 -0800)]
[PATCH] V4l/dvb: Restore missing tuner definition for Hauppauge tuner type 0x103
Type 0x103 ("TCL MFNM05-4") in the Hauppauge eeprom is a more recent tuner
that maps to TUNER_PHILIPS_FM1236_MK3. This had been previously defined but
due to some accident the definition got removed. This change restores that
definition. Change committed on advice from Hans Verkuil
<hverkuil@xs4all.nl>, who thinks he's the one who had accidentally removed it
before.
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Hans Verkuil [Thu, 1 Dec 2005 08:51:42 +0000 (00:51 -0800)]
[PATCH] V4L: Add workaround for Hauppauge PVR150 with certain NTSC tuner models
Add workaround for Hauppauge PVR150 hardware problem with tuner models 85, 99
and 112 (model numbers as reported by tveeprom). The audio standard
autodetection does not always work correctly for these models.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Steven Toth [Thu, 1 Dec 2005 08:51:41 +0000 (00:51 -0800)]
[PATCH] V4L: Fixed eeprom handling for cx88 and added Nova-T PCI model 90003
- Fixed code handling for eeprom on cx88 boards.
- Hauppauge released a new version of the Nova-T-PCI (9002) a few months ago
with a different (compatible) tuner (but lacking RF passthru). The official
model# is 90003. All features are working.
- Adding entry to the known model list after testing.
Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Ian Pickworth [Thu, 1 Dec 2005 08:51:28 +0000 (00:51 -0800)]
[PATCH] V4L: Fixes nicam sound
- Resolved problem of sporadic buzz after setting Nicam stereo
- improved setting audio standard with dma reset
- cleaned up comments format
- more sensitive Nicam detection
Signed-off-by: Ian Pickworth <ian@pickworth.me.uk> Signed-off-by: Michal Pytasz <pytasz@lodz.home.pl> Signed-off-by: Marcin Rudowski <mar_rud@poczta.onet.pl> Signed-off-by: Torsten Seeboth <Torsten.Seeboth@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Steven Toth [Thu, 1 Dec 2005 08:51:27 +0000 (00:51 -0800)]
[PATCH] V4L: tveeprom MAC address parsing/cleanup
- Added a mac address field to the tveeprom structure.
- allow callers to query the MAC address.
- removed some redundant eeprom parsing code in cx88-cards.c (specific to
Hauppauge DVB products) Instead, placed calls directly to the single eeprom
parsing function in tveeprom.c
Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
- Increases the minor number limitation for vbi devices from 223 to 255.
This is in agreement with the minor number allocation specified in
Documentation/devices.txt.
- Without this patch it is not possible to use more than 5 Hauppauge
WinTV-PVR 350 cards since each of these allocate 3 vbi devices.
Correctly specify treeboot based image entrypoint. Currently makefile uses
$(ENTRYPOINT) which isn't defined anywhere. Each board port sets
entrypoint-$(CONFIG_BOARD_NAME) instead.
Without this patch I cannot boot Ocotea (PPC440GX eval board) anymore. I
was getting random "OS panic" errors from OpenBIOS for a while, but with
current kernel I get them all the time (probably because image became
bigger).
Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Acked-by: Tom Rini <trini@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Thomas Graf [Thu, 1 Dec 2005 22:30:00 +0000 (14:30 -0800)]
[NETLINK]: Fix processing of fib_lookup netlink messages
The receive path for fib_lookup netlink messages is lacking sanity
checks for header and payload and is thus vulnerable to malformed
netlink messages causing illegal memory references.
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Phil Oester [Thu, 1 Dec 2005 22:29:24 +0000 (14:29 -0800)]
[NETFILTER]: Fix recent match jiffies wrap mismatches
Around jiffies wrap time (i.e. within first 5 mins after boot), recent
match rules which contain both --seconds and --hitcount arguments
experience false matches.
This is because the last_pkts array is filled with zeros on creation, and
when comparing 'now' to 0 (+ --seconds argument), time_before_eq thinks it
has found a hit.
Below patch adds a break if the packet value is zero. This has the
unfortunate side effect of causing mismatches if a packet was received
when jiffies really was equal to zero. The odds of that happening are
slim compared to the problems caused by not adding the break however.
Plus, the author used this same method just below, so it is "good enough".
This fixes netfilter bugs #383 and #395.
Signed-off-by: Phil Oester <kernel@linuxace.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
[NETFILTER]: Ignore ACKs ACKs on half open connections in TCP conntrack
Mounting NFS file systems after a (warm) reboot could take a long time if
firewalling and connection tracking was enabled.
The reason is that the NFS clients tends to use the same ports (800 and
counting down). Now on reboot, the server would still have a TCB for an
existing TCP connection client:800 -> server:2049. The client sends a
SYN from port 800 to server:2049, which elicits an ACK from the server.
The firewall on the client drops the ACK because (from its point of
view) the connection is still in half-open state, and it expects to see
a SYNACK.
The client will eventually time out after several minutes.
The following patch corrects this, by accepting ACKs on half open
connections as well.
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Arthur Othieno [Thu, 1 Dec 2005 20:58:01 +0000 (20:58 +0000)]
[ARM] sema_count() removal
sema_count() defined only for ARM but not used anywhere.
Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Thu, 1 Dec 2005 15:47:24 +0000 (15:47 +0000)]
[ARM SMP] Use event instructions for spinlocks
ARMv6K CPUs have SEV (send event) and WFE (wait for event) instructions
which allow the CPU clock to be suspended until another CPU issues a
SEV, rather than spinning on the lock wasting power. Make use of these
instructions.
Note that WFE does not wait if an event has been sent since the last WFE
cleared the event status, so although it may look racy, the instruction
implementation ensures that these are dealt with.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Ralf Baechle [Tue, 29 Nov 2005 16:01:32 +0000 (16:01 +0000)]
[MIPS] Alchemy: Fix BCSR accesses.
Fixes BCSR accesses in the board setup/reset code. The registers are
actually 16-bit, and their addresses are different between DBAu1550 and
other DBAu1xx0 boards.
Sergei Shtylylov [Fri, 18 Nov 2005 19:20:31 +0000 (22:20 +0300)]
[MIPS] JMR3927 fixes.
o Check if IRQ is disabled or in progress before reenabling interrupts
in jmr3927_irq_end..
o s/spinlock_irqsave/spin_lock_irqsave/
o s/spinlock_irqrestore/spin_unlock_irqrestore/
o Flush write buffer after setting IRQ mask
o In 2.6 jmr3927_ioc_interrupt interrupt handlers return irqreturn_t
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
[PATCH] skge: handle VLAN checksum correctly on yukon rev 0
If using UDP over VLAN, with the skge driver there is a possibility
of generating an incorrect checksum. This is a unlikely occurrence
because it is only an issue on Yukon revision 0, and that revision
doesn't seem to exist on any current hardware (probably early prototype).
Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This patch fixes graceful stop timeout handling in PPC4xx EMAC driver.
Currently, when we stop TX/RX channels we just do some number of loops
without relying on actual spent time. This has finally bitten me on
one of our systems (heavy network traffic during start up, RX channel
is stopped several times to configure multicast list).
Graceful channel stop can take up to 1 frame time, so I've added
device specific timeout counter which depends on current link speed
and calls to udelay() to really wait required amount of time before
giving up.
Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Remove code from sk98lin that does it's own checksum validation.
This code is incorrect when dealing with nested protocols like
VLAN's, and it is better to use regular receive code path to
handle hardware checksum.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Jesse Brandeburg [Wed, 30 Nov 2005 03:23:59 +0000 (19:23 -0800)]
[PATCH] e1000: fix for dhcp issue
Parse outgoing packets in e1000_transfer_dhcp_info as raw packet even if
protocol bits are set. pump, for instance causes kernel panic on some
systems, if parsed via udp header.
Thanks to Derrell Lipman <Derrell.Lipman@BacklotTech.com> for reporting and
testing.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Al Viro [Thu, 22 Sep 2005 05:15:57 +0000 (01:15 -0400)]
[ACPI] IA64 build: blacklist.c is used only on X86
Signed-off-by: Al Viro <viro@ftp.linux.org.uk> Signed-off-by: Len Brown <len.brown@intel.com>
(cherry picked from ef4611613657dfb8af8d336f2f61f08cfcdc9d8a commit)
projects / linux-2.6 / log