Flush data serially to line discipline in blocks no larger than
tty->receive_room to avoid losing data if line discipline is busy (such as
N_TTY operating at high speed on heavily loaded system) or does not accept
data in large blocks (such as N_MOUSE).
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Remove TTY_DONT_FLIP tty flag. This flag was introduced in 2.1.X kernels
to prevent the N_TTY line discipline functions read_chan() and
n_tty_receive_buf() from running at the same time. 2.2.15 introduced
tty->read_lock to protect access to the N_TTY read buffer, which is the
only state requiring protection between these two functions.
The current TTY_DONT_FLIP implementation is broken for SMP, and is not
universally honored by drivers that send data directly to the line
discipline receive_buf function.
Because TTY_DONT_FLIP is not necessary, is broken in implementation, and is
not universally honored, it is removed.
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Temporarily add EXPORT_UNUSED_SYMBOL and EXPORT_UNUSED_SYMBOL_GPL. These
will be used as a transition measure for symbols that aren't used in the
kernel and are on the way out. When a module uses such a symbol, a warning
is printk'd at modprobe time.
The main reason for removing unused exports is size: eacho export takes
roughly between 100 and 150 bytes of kernel space in the binary. This
patch gives users the option to immediately get this size gain via a config
option.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Same as with already do with the file operations: keep them in .rodata and
prevents people from doing runtime patching.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Steven French <sfrench@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
We recently changed x86 to handle more than 256 IRQs. Add a check in do_IRQ()
just to make sure that nothing went wrong with that implementation.
[chrisw@sous-sol.org: do x86_64 too]
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@muc.de>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: "Protasevich, Natalie" <Natalie.Protasevich@UNISYS.com>
Cc: <Christian.Limpach@cl.cam.ac.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Documentation/watchdog/:
Expose example and tool source files in the Documentation/ directory in
their own files instead of being buried (almost hidden) in readme/txt files.
This will make them more visible/usable to users who may need
to use them, to developers who may need to test with them, and
to janitors who would update them if they were more visible.
Also, if any of these possibly should not be in the kernel tree at
all, it will be clearer that they are here and we can discuss if
they should be removed.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>
the VDSO randomization code on i386 fails to release the mmap semaphore
if insert_vm_struct() fails.
[ Made the conditional unlikely. -- Linus ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Added the support for Intel D965 boards with STAC9227 codec.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Patch from Realtek:
- Fix ALC883 support code
- Add support of ALC888 codec
- Add ALC660 support (ALC861-compatible)
- Add HP xw4400/6400/8400/9400 support (model=hp-bpc)
- Code clean-up: fix spaces and indentation
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Apparently some firmware versions forget enabling the dual-edge bit,
snd-powermac did that too and even OSX does sometimes. This should fix
headphone plug detection on those machines.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This properly adds support for the iMac G5 iSight.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
The dependencies in the soundbus Kconfig were wrong, it isn't
experimental any more.
This patch fixes that and makes it select SND_PCM too instead of
depending on it.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Fix spaces, fold lines to fit 80 columns in ak4xxx-adda driver codes.
Split a long reset function to each codec routine just for better
readability.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Removed CONFIG_EXPERIMENTAL from intel8x0m driver.
The driver has been working well without problems.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This patch adds stereo controls to revo cards by making the ak4xxx
driver mixers configurable from the card driver.
Signed-off-by: Jani Alinikula <janialinikula@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
seq_ports.c::snd_seq_delete_all_ports() uses __list_add() to replace the
whole list entries. This results in BUG() with recent FC5 kernel due to
a sanity check in __list_add().
The patch fixes this misue of __list_add() by using standard macros
instead (although a bit more code is needed).
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Added the model entry 'laptop-eapd' for Samsung X60 Chane with
AD1986A codec.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
The dynamic minors code is mature, has been tested, and seems to work
fine.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
When snd-aoa is not built or built as modules, but CONFIG_SND is yes,
kernel build fails due to a bug I introduced when adding snd-aoa. This
patch fixes it.
From: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This patch adds two mixer controls. The V_REFOUT enable is a
documented register that couples the microphone input lines
to the V_REFOUT DC source. The High Pass Filter enable in the
AC97_AD_TEST2 (0x5c) is an undocumented register provided by
Miller Puckette via Analog Devices that enables the AD codec
to apply a high pass filter to the input.
Signed-off-by: Jaya Kumar <jayakumar.alsa@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Suppress 'irq handler mismatch' messages at auto-probing of irqs
in ALSA ISA drivers.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
From: Sam Revitch <sam.revitch@gmail.com>Recently a Turtle Beach Audio Advantage Roadie device ended up in my
possession. It seems to work with the snd-usb-audio driver, but only
using the headphone jack in 2-channel mode. The device has a DIN
connector carrying six more channels that are otherwise silent.
C-Media has freely available documentation for the CM106 chip around
which this device is based, and enabling 8-channel output, or
6-channel output with the headphone jack following the front pair is a
matter of setting one of its registers.
Attached is a patch to try to enable 5.1 output mode at probe time.
It seems to work correctly with my device. There is quite list of
other configurables for this device that might deserve controls.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
The following patch fixes two spots in the SN kernel
that check a fixed prom revision number to determine prom
feature support. These checks are only valid on shub1 systems.
They are invalid on shub2 systems which have a different prom
with different revision numbers.
Signed-off-by: Aaron Young <ayoung@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
The code in "1007:" is in the .fixup section, which in the mmuless
case is discarded. Since this code is referenced from the .text
section, it causes an link error. Move this code into the .text
section instead.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
In noMMU mode, various of functions which are defined in mm/proc-*.S
is not valid or needed to be avoided. i.g. switch_mm is not needed,
just returns and this makes the I & D caches are valid which shows
great improvement of performance including task switching and IPC.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Hyok says Intel Xscale is not currently supported by uCLinux.
Rather than adding #error statements to the Xscale support files
and causing !MMU+Xscale configurations to fail to build, prevent
Xscale-based machines from being selected in !MMU mode.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This is a trivial patch to export flush_dcache_page in mm/nommu.c.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Remove fault-armv.o, mmap.o and mm-armv.o from uclinux builds - these
are concerned with MMU-ful operations, and as such are redundant for
uclinux.
Since this also removes iotable_init() and iotable_init() is used
extensively in the platform support files, just make it a no-op.
Based upon a couple of patches by Hyok.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
TABLE_SIZE is never used in arch/arm/mm/init.c. create_memmap_holes(),
memtable_init, and setup_io_desc() no longer exist in the kernel.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
nommu doesn't require a complex flush_dcache_page implementation
like the MMU-ful CPUs do, so provide a simplified version in nommu.c
and omit flush.c from the build as appropriate.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Include Kconfig-nommu when MMU is not selected.
(This is part of a patch from Hyok.)
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
nommu doesn't have any form of remapping support, so ioremap, etc
become stubs which just return the casted address, doing nothing
else.
Move ioport_map(), ioport_unmap(), pci_iomap(), pci_iounmap()
into a separate file which is always built.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Since uclinux doesn't make use of the TLB, including the TLB
maintainence and CPU-optimised copypage functions does not
make sense. Remove them.
(This is part of one of Hyok's patches.)
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
MMUless systems have only one address space for all threads, so
both the usual access_ok() checks, and the exception handling do
not make much sense.
Hence, discard the fixup and exception tables at link time, use
memcpy/memset for the user copy/clearing functions, and define
the permission check macros to be constants.
Some of this patch was derived from the equivalent patch by
Hyok S. Choi.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Majorily based on Hyok Choi's patches, this fixes up the asm-arm
header files for mmuless systems. Over and above Hyok's patches:
- nommu.h merged into mmu.h (it's only a structure)
- nommu_context.h is essentially the same as mmu_context.h, but
without the MM switching code.
so there's no point having separate files. Also, in memory.h,
there's no point #ifndef'ing PHYS_OFFSET and END_MEM - both
CONFIG_DRAM_BASE and CONFIG_DRAM_SIZE will always be set by the
configuration scripts.
Other files have minor formatting changes, but are essentially
the same. Hyok's original patches were signed off thusly:
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Since there can be no fixed location for the TLS value with nommu
systems, we must provide TLS register emulation in order to support
TLS binaries on CPUs without the thread register.
Part of a patch from Hyok S. Choi, and cleaned up by rmk.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Montecito is coming with dual core and threading, so this
four socket box can now have sixteen logical cpus.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Pass the OS logical cpu number to the PROM. This allows PROM
to log the OS logical cpu number in error records viewed thru POD.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Chandra Seetharaman missed one place in commit:
65edc68c34
[but it only shows up when building the ski simulator configuration
of ia64, so thats understandable]
Signed-off-by: Tony Luck <tony.luck@intel.com>
Patch from Guennadi Liakhovetski
Currently probe_irq_on() on PXA will silently reconfigure all output GPIOs, that are not configured as alternate functions, for input. Avoid that. Upon CPU reset all GPIOs are configured as inputs, so, if a GPIO is configured as output, it has been done so intentionally.
Signed-off-by: G. Liakhovetski <gl@dsa-ac.de>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Lennert Buytenhek
This patch adds support for the Cirrus Logic EDB9315, an evaluation
board based on the Cirrus Logic EP9315 SoC, with 64M RAM, two USB host
ports, audio in/out, three serial ports, 10/100 ethernet, and IDE, VGA,
and LCD interfaces.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Lennert Buytenhek
Add the necessary kernel bits for crunch task switching.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
