| Commit message (Collapse) | Author | Age | Files | Lines |
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Set the backing device info capabilities for /dev/mem and /dev/kmem to
permit direct sharing under no-MMU conditions and full mapping capabilities
under MMU conditions. Make the BDI used by these available to all directly
mappable character devices.
Also comment the capabilities for /dev/zero.
[akpm@osdl.org: ifdef reductions]
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Implement the special memory driver (mspec) based on the do_no_pfn
approach. The driver is currently used only on SN2 hardware with special
fetchop support but could be beneficial on other architectures using the
uncached mode.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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virtual addresses don't belong into kernel logs for non debugging
Cc: clemens@ladisch.de
Signed-off-by: Andi Kleen <ak@suse.de>
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BUG: warning at kernel/lockdep.c:1816/trace_hardirqs_on() (Not tainted)
[<c04051ee>] show_trace_log_lvl+0x58/0x171
[<c0405802>] show_trace+0xd/0x10
[<c040591b>] dump_stack+0x19/0x1b
[<c043abee>] trace_hardirqs_on+0xa2/0x11e
[<c06143c3>] _spin_unlock_irq+0x22/0x26
[<c0541540>] rtc_get_rtc_time+0x32/0x176
[<c0419ba4>] hpet_rtc_interrupt+0x92/0x14d
[<c0450f94>] handle_IRQ_event+0x20/0x4d
[<c0451055>] __do_IRQ+0x94/0xef
[<c040678d>] do_IRQ+0x9e/0xbd
[<c0404a49>] common_interrupt+0x25/0x2c
DWARF2 unwinder stuck at common_interrupt+0x25/0x2c
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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annotated, fixed a roothole in ->write(). Dereferencing user-supplied pointer
is a Bad Idea(tm)...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart:
[AGPGART] Rework AGPv3 modesetting fallback.
[AGPGART] Add suspend callback for i965
[AGPGART] Fix number of aperture sizes in 830 gart structs.
[AGPGART] Intel 965 Express support.
[AGPGART] agp.h: constify struct agp_bridge_data::version
[AGPGART] const'ify VIA AGP PCI table.
[AGPGART] CONFIG_PM=n slim: drivers/char/agp/intel-agp.c
[AGPGART] CONFIG_PM=n slim: drivers/char/agp/efficeon-agp.c
[AGPGART] Const'ify the agpgart driver version.
[AGPGART] remove private page protection map
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Sometimes the logic to handle AGPx8->AGPx4 fallback failed, as can
be seen in https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=197346
The failures occured if the bridge was in AGPx8 mode, but the
user hadn't specified a mode in their X config. We weren't
setting the mode to the highest mode capable by the video card+bridge
(as we do in the AGPv2 case), which was leading to all kinds of
mayhem including us believing that after falling back from AGPx8, that
we couldn't do x4 mode (which is disastrous in AGPv3, as those are
the only two modes possible).
Signed-off-by: Dave Jones <davej@redhat.com>
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Signed-off-by: Dave Jones <davej@redhat.com>
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Spotted by Eric Anholt.
Signed-off-by: Dave Jones <davej@redhat.com>
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From: Alan Hourihane <alanh@tungstengraphics.com>
From: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Jones <davej@redhat.com>
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drivers/char/agp/backend.c: In function `agp_backend_initialize':
drivers/char/agp/backend.c:141: warning: assignment discards qualifiers from pointer target type
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Signed-off-by: Dave Jones <davej@redhat.com>
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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Dave Jones <davej@redhat.com>
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Signed-off-by: Dave Jones <davej@redhat.com>
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AGP keeps its own copy of the protection_map, upcoming DRM changes will
also require access to this map from modules.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Dave Jones <davej@redhat.com>
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memcpy() from iomem is a bad thing...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (114 commits)
[POWERPC] Fix ohare IDE irq workaround on old powermacs
[POWERPC] EEH: Power4 systems sometimes need multiple resets.
[POWERPC] Include <asm/mmu.h> in arch/powerpc/sysdev/fsl_soc.h for phys_addr_t.
[POWERPC] Demacrofy arch/powerpc/platforms/maple/pci.c
[POWERPC] Maple U3 HT - reject inappropriate config space access
[POWERPC] Fix IPIC pending register assignments
[POWERPC] powerpc: fix building gdb against asm/ptrace.h
[POWERPC] Remove DISCONTIGMEM cruft from page.h
[POWERPC] Merge iSeries i/o operations with the rest
[POWERPC] 40x: Fix debug status register defines
[POWERPC] Fix compile error in sbc8560
[POWERPC] EEH: support MMIO enable recovery step
[POWERPC] EEH: enable MMIO/DMA on frozen slot
[POWERPC] EEH: code comment cleanup
[POWERPC] EEH: balance pcidev_get/put calls
[POWERPC] PPC: Fix xmon stack frame address in backtrace
[POWERPC] Add AT_PLATFORM value for Xilinx Virtex-4 FX
[POWERPC] Start arch/powerpc/boot code reorganization
[POWERPC] Define of_read_ulong helper
[POWERPC] iseries: eliminate a couple of warnings
...
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No other tty driver will print on the console when the open of it fails.
On systems that happen to be configured for both ttyS0 and hvc0 console,
this will keep flooding the console output. This is most likely to
happen with systems booted between with and without hypervisor from the
same filesystem.
Let's just remove it. When it's really needed (i.e. when the open fails
and someone is trying to debug it), noone will see the output anyway. And
init will report the opens failing in due time through the syslog.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Ryan S. Arnold <rsa@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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since only the briQ has a briQ front panel, and the briQ is a CHRP and
is only supported if CONFIG_PPC_CHRP is set.
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Now that get_property() returns a void *, there's no need to cast its
return value. Also, treat the return value as const, so we can
constify get_property later.
tpm_atmel changes
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Now that get_property() returns a void *, there's no need to cast its
return value. Also, treat the return value as const, so we can
constify get_property later.
powerpc-specific video & agp driver changes.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Now that get_property() returns a void *, there's no need to cast its
return value. Also, treat the return value as const, so we can
constify get_property later.
pseries platform changes.
Built for pseries_defconfig
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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drivers/char/briq_panel.c:28:22: error: asm/prom.h: No such file or directory
Cc: Jeremy Kerr <jk@ozlabs.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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So the iSeries console will be faster since it can send up to 200 bytes at
a time to the Hypervisor. This only affects the tty part of the console,
the console writes are still in 16 byte lots.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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This driver uses the hvc_console.c infrastructure that is used by the
pSeries virtual and RTAS consoles. This will allow us to make viocons.c
obsolete and is another step along the way to a combined kernel (as
viocons could not coexist with CONFIG_VT).
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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This adds the driver for the Briq front panel. This is a cleaned up
version of a driver that has been floating around for some time now,
initially written by Karsten Jeppesen <karsten@jeppesens.com> and
cleaned up by jk and myself.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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If one of the OEM flags becomes set in the flags from the hardware, the
driver could hang if no OEM handler was set. Fix the code to handle this.
This was tested by setting the flags by hand after they were fetched.
Signed-off-by: Corey Minyard <minyard@acm.org>
Ackde-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Fix http://bugzilla.kernel.org/show_bug.cgi?id=7152
Cc: Michael Tautschnig <tautschn@model.in.tum.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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When the ipmi_si module is loaded on a system without any ipmi device, it
fails with nodev. It would be fine if all resources were freed. A call to
device_unregister() is missing, resulting to a oops when you remove the
ipmi_msghandler.
Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Olaf Kirch of SuSE tracked down a problem where module unloads of the IPMI
driver would occasionally result in Oopses. He tracked that down to a
variable that wasn't always initialized properly in some situations. This
patch initializes that variable. Olaf sent a patch that kzalloc-ed the
data, but this structure is large enough that I would perfer to not do
that. Thanks Olaf!
Signed-off-by: Corey Minyard <minyard@acm.org>
Cc: Olaf Kirch <okir@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The last argument of module_param is permissions, not default value.
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Fix receive tty error handling in synclink_gt driver. Adrian reported
compiler warning for incorrect bit test against char variable. I
determined these and other device specific error bits were incorrectly
defined.
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The radeon requires a VAP state flush when enabling/disabling
vertex programs on the r200 cards.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Unlike the other tty comment patch this one has code changes. Specifically
it limits the queue size for a tty to 64K characters (128Kbytes) worst case
even if the tty is ignoring tty->throttle. This is because certain drivers
don't honour the throttle value correctly, although it is a useful
safeguard anyway.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Doesn't fix them but does show up some interesting areas that need review
and fixing.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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When reading /dev/vcsa while a font with more than 256 characters is
loaded, one of the attribute bits records the 9th bit of the character.
But depending on the console driver (vgacon or fbcon for instance), that's
bit 3 or bit 0. And there is no way for userland to know that, thus no way
for userland to safely grab the screen content. So here is a (tested)
patch:
Add a VT_GETHIFONTMASK ioctl for knowing which bit is the 9th bit for VC
text (vc_hi_font_mask field of the vc_data structure).
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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While testing Moxa C218T/PCI on PowerPC 405EP I found that loading firmware
using the linux kernel driver fails because calculation of the checksum is
not endianess independent in the original code.
After I fixed this I found that uploading firmware in a system with
multiple cards causes a kernel oops. I had a look in the recent moxa
sources and found that they do some kind of locking there. Applying this
lock fixed the problem.
Alan sayeth:
Checksum changes are clearly correct. Other changes is an improvement but
not I think enough to handle malicious firmware attacks. That said such an
attacker has CAP_SYS_RAWIO anyway so that part is irrelevant except for
neatness.
[akpm@osdl.org: cleanups]
Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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When cdev_add() failed there is no reason to call cdev_del().
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Three typos in drivers/char/watchdog/Kconfig...
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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master.kernel.org:/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input: (24 commits)
Input: ati_remote - use msec instead of jiffies
Input: ati_remote - add missing input_sync()
Input: ati_remote - relax permissions sysfs module parameters
Input: ati_remote - make filter time a module parameter
Input: atkbd - restore repeat rate when resuming
Input: trackpoint - activate protocol when resuming
Input: logips2pp - fix button mapping for MX300
Input: keyboard - change to use kzalloc
Input: serio/gameport - check whether driver core calls succeeded
Input: spaceball - make 4000FLX Lefty work
Input: keyboard - simplify emulate_raw() implementation
Input: keyboard - remove static variable and clean up initialization
Input: hiddev - use standard list implementation
Input: add missing handler->start() call
Input: HID - fix potential out-of-bound array access
Input: fix list iteration in input_release_device()
Input: iforce - add Trust Force Feedback Race Master support
Input: iforce - check array bounds before accessing elements
Input: libps2 - warn instead of oopsing when passed bad arguments
Input: fm801-gp - fix use after free
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Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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