Pavel Machek [Wed, 28 May 2008 10:42:57 +0000 (12:42 +0200)]
i8259: fix final ugliness
Introduce IRQx_VECTOR on 32-bit, so that #ifdef noise is kept
down. There should be no object code change.
[ mingo@elte.hu: merged to x86/irq not x86/i8259 due to x86/irq having
restructured the vector code into asm-x86/irq_vectors.h, which this
patch touches. ]
Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Robert Richter [Mon, 3 Sep 2007 08:17:39 +0000 (10:17 +0200)]
x86: add PCI extended config space access for AMD Barcelona
This patch implements PCI extended configuration space access for
AMD's Barcelona CPUs. It extends the method using CF8/CFC IO
addresses. An x86 capability bit has been introduced that is set for
CPUs supporting PCI extended config space accesses.
Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Kevin Hao [Thu, 29 May 2008 10:41:04 +0000 (18:41 +0800)]
x86: get irq for hpet timer
HPET timer's IRQ is 0 by default. So we have to select which irq
will be used by these timers. We wait to set the timer's irq until
we really open it in order to reduce the chance of conflicting with
other device.
Signed-off-by: Kevin Hao <kexin.hao@windriver.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Paul Mundt [Mon, 2 Jun 2008 03:40:14 +0000 (12:40 +0900)]
sh: fix miscompilation of ip_fast_csum with gcc >= 4.3
As noted by Matthew Wilcox:
Kyle McMartin just tracked down a bug on parisc to a missing
"memory" clobber in the inline assembly implementation of
ip_fast_csum. The FRV, SH and Xtensa ports are also missing a
memory clobber, so I thought it would be polite to let you know.
The bug manifests as dropped network packets (obviously they have
the wrong checksum). It started appearing for parisc with GCC 4.3.
The GCC manual says:
If your assembler instructions access memory in an unpredictable
fashion, add `memory' to the list of clobbered registers. This
will cause GCC to not keep memory values cached in registers
across the assembler instruction and not optimize stores or loads
to that memory.
I see that FRV has a 400 byte memory output which may prevent this
problem from appearing, but SH and Xtensa have nothing to prevent
this bug. Hope this saves you a few days of debugging.
Adrian Bunk [Thu, 29 May 2008 22:04:49 +0000 (01:04 +0300)]
sh/kernel/cpu/irq/intc-sh5.c build fix
This patch fixes the following build error caused by
commit a1dc4b59fa4af97ae68ee214d4d72bbd7c7ec1dc
(sh: intc_sh5 depends on cayman board for IRQ priority table.):
<-- snip -->
...
CC arch/sh/kernel/cpu/irq/intc-sh5.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/kernel/cpu/irq/intc-sh5.c: In function 'plat_irq_setup':
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/kernel/cpu/irq/intc-sh5.c:257: error: expected declaration or statement at end of input
make[4]: *** [arch/sh/kernel/cpu/irq/intc-sh5.o] Error 1
<-- snip -->
Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Circular include dependencies are dangerous since they can result in
inconsistent definitions being provided to other code, especially if
'#ifndef' constructs are used.
Solve this by removing the offending includes. Built tested using my
AT91 configuration.
Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Andrew G. Morgan [Wed, 28 May 2008 05:05:17 +0000 (22:05 -0700)]
capabilities: remain source compatible with 32-bit raw legacy capability support.
Source code out there hard-codes a notion of what the
_LINUX_CAPABILITY_VERSION #define means in terms of the semantics of the
raw capability system calls capget() and capset(). Its unfortunate, but
true.
Since the confusing header file has been in a released kernel, there is
software that is erroneously using 64-bit capabilities with the semantics
of 32-bit compatibilities. These recently compiled programs may suffer
corruption of their memory when sys_getcap() overwrites more memory than
they are coded to expect, and the raising of added capabilities when using
sys_capset().
As such, this patch does a number of things to clean up the situation
for all. It
1. forces the _LINUX_CAPABILITY_VERSION define to always retain its
legacy value.
2. adopts a new #define strategy for the kernel's internal
implementation of the preferred magic.
3. deprecates v2 capability magic in favor of a new (v3) magic
number. The functionality of v3 is entirely equivalent to v2,
the only difference being that the v2 magic causes the kernel
to log a "deprecated" warning so the admin can find applications
that may be using v2 inappropriately.
[User space code continues to be encouraged to use the libcap API which
protects the application from details like this. libcap-2.10 is the first
to support v3 capabilities.]
Fixes issue reported in https://bugzilla.redhat.com/show_bug.cgi?id=447518.
Thanks to Bojan Smojver for the report.
[akpm@linux-foundation.org: s/depreciate/deprecate/g]
[akpm@linux-foundation.org: be robust about put_user size]
[akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Andrew G. Morgan <morgan@kernel.org> Cc: Serge E. Hallyn <serue@us.ibm.com> Cc: Bojan Smojver <bojan@rexursive.com> Cc: stable@kernel.org Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Bryan Wu [Sat, 31 May 2008 08:10:04 +0000 (16:10 +0800)]
8250 Serial Driver: revert extra IRQ flag definition patch
As Russell pointed out, original patch will break some serial configurations
because of the dependency of the <asm/serial.h> header file.
Revert it first and try to find out other solution later
Cc: Javier Herrero <jherrero@hvsistemas.es> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Russell King <rmk+lkml@arm.linux.org.uk> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Bryan Wu [Sat, 31 May 2008 07:17:25 +0000 (15:17 +0800)]
Blackfin arch: Fix bug - set corret SSEL and IRQ to enable AD7877 on BF527
AD7877 use SSEL_2 (P9.9) and IRQ_PF8 (P9.14) on BF527
- populating JP3 to enable STAMP
- disable SW11.2 to disconnect SSEL_2/PF12 from Rotary NAND
- disable SW18.1 to disconnect SSEL_2 from MAX1233 touchscreen chip
Gcc might re-order MMIO accessors vs. surrounding consistent
memory accesses, which is a "bad thing", and could break drivers.
This fixes it by adding a "memory" clobber to the MMIO accessors,
which should prevent gcc from doing that reordering.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Turn on special bits to save more power when device is shutdown.
Tested on a limited range of hardware, some of the bits are for hardware
that probably isn't even in production (like Yukon Supreme) and was ported
from the vendor driver.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tobias Diedrich [Sun, 18 May 2008 13:04:29 +0000 (15:04 +0200)]
[netdrvr] forcedeth: reorder suspend/resume code
Match the suspend/resume code ordering in e100/e1000e more closely.
For example the configuration space should be saved on suspend even for
devices that are not up.
Signed-off-by: Tobias Diedrich <ranma+kernel@tdiedrich.de> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tobias Diedrich [Sun, 18 May 2008 13:02:37 +0000 (15:02 +0200)]
[netdrvr] forcedeth: setup wake-on-lan before shutting down
When hibernating in 'shutdown' mode, after saving the image the suspend hook
is not called again.
However, if the device is in promiscous mode, wake-on-lan will not work.
This adds a shutdown hook to setup wake-on-lan before the final shutdown.
Signed-off-by: Tobias Diedrich <ranma+kernel@tdiedrich.de> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Randy Dunlap [Fri, 30 May 2008 17:29:19 +0000 (10:29 -0700)]
cxgb3: fix build error when INET=n
cxgb3 uses lro_* functions and selects INET_LRO, but this doesn't help unless
INET is already enabled, so make the driver depend on INET also.
sge.c:(.text+0x9f09a): undefined reference to `lro_flush_all'
sge.c:(.text+0x9f62f): undefined reference to `lro_receive_skb'
sge.c:(.text+0x9f8a3): undefined reference to `lro_receive_frags'
sge.c:(.text+0x9fbe0): undefined reference to `lro_vlan_hwaccel_receive_skb'
sge.c:(.text+0x9ffcd): undefined reference to `lro_vlan_hwaccel_receive_frags'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Handle shared IRQ correctly. If IRQ is shared, it typically will show up
as an IRQ with an empty status field. So check in driver and handle it
without crapping out with invalid interrupt message.
Compile tested only.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Rx allocation failure at runtime is non-fatal. For normal Rx frame, it
just reuses the buffer, and during setup it just continues with a smaller
receive buffer pool.
Compile tested only.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Brice Goglin [Fri, 9 May 2008 00:21:49 +0000 (02:21 +0200)]
myri10ge: add multislices support
Add multi-slice/MSI-X support. By default, a single slice
(and the normal firmware) are used. To enable msi-x, multi-slice
mode, one must load the driver with myri10ge_max_slices set to
either -1, or something larger than 1.
Signed-off-by: Brice Goglin <brice@myri.com> Signed-off-by: Andrew Gallatin <gallatin@myri.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Alexey Dobriyan [Thu, 22 May 2008 22:00:25 +0000 (02:00 +0400)]
atl1: fix 4G memory corruption bug
When using 4+ GB RAM and SWIOTLB is active, the driver corrupts
memory by writing an skb after the relevant DMA page has been
unmapped. Although this doesn't happen when *not* using bounce
buffers, clearing the pointer to the DMA page after unmapping
it fixes the problem.
Li Yang [Fri, 23 May 2008 10:11:27 +0000 (18:11 +0800)]
ucc_geth_ethtool: Add a missing HW stats counter
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Joakim Tjernlund [Fri, 23 May 2008 10:11:26 +0000 (18:11 +0800)]
ucc_geth_ethtool: Fix typo
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Rusty Russell [Mon, 26 May 2008 07:48:13 +0000 (17:48 +1000)]
virtio: fix delayed xmit of packet and freeing of old packets.
Because we cache the last failed-to-xmit packet, if there are no
packets queued behind that one we may never send it (reproduced here
as TCP stalls, "cured" by an outgoing ping).
Cc: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Rusty Russell [Mon, 26 May 2008 07:42:42 +0000 (17:42 +1000)]
virtio: fix virtio_net xmit of freed skb bug
If we fail to transmit a packet, we assume the queue is full and put
the skb into last_xmit_skb. However, if more space frees up before we
xmit it, we loop, and the result can be transmitting the same skb twice.
Fix is simple: set skb to NULL if we've used it in some way, and check
before sending.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
H. Peter Anvin [Sat, 31 May 2008 00:19:03 +0000 (17:19 -0700)]
x86: move x86-specific documentation into Documentation/x86
The current organization of the x86 documentation makes it appear as
if the "i386" documentation doesn't apply to x86-64, which is does.
Thus, move that documentation into Documentation/x86, and move the
x86-64-specific stuff into Documentation/x86/x86_64 with the eventual
goal to move stuff that isn't actually 64-bit specific back into
Documentation/x86.
x86: Honor 'quiet' command line option in real mode boot decompressor.
This patch lets the early real mode code look for the 'quiet' option
on the kernel command line and pass a loadflag to the decompressor.
When this flag is set, we suppress the "Decompressing Linux... Parsing
ELF... done." messages.
Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Thomas Gleixner [Fri, 2 May 2008 21:42:01 +0000 (23:42 +0200)]
x86: move mmconfig declarations to header
arch/x86/kernel/mmconf-fam10h_64.c is missing the prototypes, which
are decalred in arch/x86/kernel/setup_64.c. Move the prototypes and
the inline stubs to the appropriate header file.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Joel Becker [Sat, 10 May 2008 01:49:29 +0000 (18:49 -0700)]
ocfs2: Rename 'user_stack' plugin structure to 'ocfs2_user_plugin'
The static structure describing the userspace cluster plugin for ocfs2
was named 'user_stack', which is a real pain when people are grep(1)ing
the tree for the program stack object 'user_stack'. Change the name to
something distinct and namespaced.
Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Tony Lindgren [Fri, 30 May 2008 21:12:56 +0000 (14:12 -0700)]
ARM: OMAP: Introduce omap_globals and prcm access functions for multi-omap
New struct omap_globals contains the omap processor specific
module bases. Use omap_globals to set the various base addresses
before to make detecting omap chip type simpler.
Also introduce OMAP2_IO_ADDRESS for future multi-omap patches.
projects / linux-2.6-omap-h63xx.git / log