Should add some comments for the tag barriers (they won't be so important
if we can switch over to the explicit _lock bitops, but for now we should
make it clear).
Jens' original patch said a barrier after the test_and_clear_bit was also
required. I can't see why (and it would prevent the use of the _lock bitop).
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
--
A crash upon booting that is caused by bcm43xx has been reported [1] and
found to be due to a work queue being reinitialized while work on that
queue is still pending. This fix modifies the shutdown of work queues and
prevents periodic work from being requeued during shutdown. With this patch,
no more crashes on reboot were observed by the original reporter. I do not
get that particular failure on my system; however, when running a large
number of ifdown/ifup sequences, my system would kernel panic with the
'caps lock' light blinking at roughly a 1 Hz rate. In addition, there were
infrequent failures in the firmware that resulted in 'IRQ READY TIMEOUT'
errors. With this patch, no more of the first type of failure occur, and
incidence of the second type is greatly reduced.
[1] http://bugzilla.kernel.org/show_bug.cgi?id=8937
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Another issue with 20Kc's WAIT, waiting for more details. With the
2.6.23 release immindent simply disable the use of WAIT instead of a
more fancy workaround.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fairly cosmetic as it would only affect VSMP / SMTC kernels that don't
use vectored interrupts.
Found by Beth.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Revert b543858209 and add
no_pci_devices() check to avoid crash due to early calling of
pci_get_class().
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
It refer to CPU_PROFILING.
arch/mips/kernel/time.c: In function 'local_timer_interrupt':
arch/mips/kernel/time.c:142: error: implicit declaration of function 'profile_tick'
arch/mips/kernel/time.c:142: error: 'CPU_PROFILING' undeclared (first use in this function)
arch/mips/kernel/time.c:142: error: (Each undeclared identifier is reported only once
arch/mips/kernel/time.c:142: error: for each function it appears in.)
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
CC arch/mips/kernel/rtlx.o
cc1: warnings being treated as errors
arch/mips/kernel/rtlx.c:59: warning: 'irq' defined but not used
arch/mips/kernel/rtlx.c:60: warning: 'irq_num' defined but not used
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
CC arch/mips/kernel/rtlx.o
arch/mips/kernel/rtlx.c: In function 'rtlx_init':
arch/mips/kernel/rtlx.c:114: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'long unsigned int'
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Bug: With a hardware encoder board installed as cx88[1] and a
non-encoder boards installed as cx88[0], an OOPS is generated
during cx8802_get_device() called from mpeg_open().
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Since this boot-time option was removed in commit
9ab7e323af, delete the reference to it.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
saa7191.c: In function 'saa7191_probe':
saa7191.c:596: warning: passing argument 3 of
'saa7191_write_block' discards qualifiers from pointer target type
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Commit 85237f202d introduced the
following warning (with CONFIG_USB_PWC_DEBUG=y):
drivers/media/video/pwc/pwc-if.c: In function "pwc_video_close":
drivers/media/video/pwc/pwc-if.c:1211: warning: "i" may be used uninitialized in this function
This is true, and can cause a broken debug message to be logged.
Here's a fix.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Right now the composite sound input doesn't work on AverTV 307 because of
the wrong mux setup. The composite sound is routed via an external
4channel multiplexer controlled by GPIO, while the code assumes an internal
multiplexer instead.
Presumably this was a copy/paste error, and noone have ever tested the
functionality.
With the attached patch it works properly, which gives me an ability to
finally watch the cable TV under linux.
Signed-off-by: Stas Sergeev <stsp@aknet.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Nickolay V. Shmyrev <nshmyrev@yandex.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Due to a documentation bug (the type mask is 3 bits long, not 2) the wrong
frame types were filled in: the B and P frame types were swapped.
This bug also hid a second bug: when a capture is stopped a last entry is
written into the pgm index buffer with internal type 0, denoting the end
of the program. This entry wasn't ignored, instead it was accidentally
returned to the caller as a P frame.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Enabled using SPI controller on the MPC832x RDB board. We currently use
a modalias of "spidev" as a place holder (replace with "mmc_spie") until
the mmc_spi driver support is merged in.
This gets us the ability to test SPI until then.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Add helper function to setup SPI bus/device information
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Use idx as index into mpc52xx_uart_nodes instead of i
Signed-off-by: John Rigby <jrigby@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
The current definition of struct ccsr_guts in immap_86xx.h was for 85xx.
This patch fixes that and replaces the vague integer types with sized types
of the correct endianness. The unused struct ccsr_pci is also deleted.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This patch adds the clrsetbits_xxx() macros, which are used to set and clear
multiple bits in a single read-modify-write operation. Specify the bits to
clear in the 'clear' parameter and the bits to set in the 'set' parameter.
These macros can also be used to set a multiple-bit bit pattern using a mask,
by specifying the mask in the 'clear' parameter and the new bit pattern in the
'set' parameter. There are big-endian and little-endian versions for 8, 16,
32, and 64 bits.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This is needed to configure and control QE pario pins from the kernel.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
These I/O accessors will be used in code under drivers/,
which is expected to still work in arch/ppc.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
We get warnings like the following from the various ppc32 head*.S files:
WARNING: vmlinux.o(.text+0x358): Section mismatch: reference to .init.text:early_init (between 'skpinv' and 'interrupt_base')
WARNING: vmlinux.o(.text+0x380): Section mismatch: reference to .init.text:machine_init (between 'skpinv' and 'interrupt_base')
WARNING: vmlinux.o(.text+0x384): Section mismatch: reference to .init.text:MMU_init (between 'skpinv' and 'interrupt_base')
WARNING: vmlinux.o(.text+0x3aa): Section mismatch: reference to .init.text:start_kernel (between 'skpinv' and 'interrupt_base')
WARNING: vmlinux.o(.text+0x3ae): Section mismatch: reference to .init.text:start_kernel (between 'skpinv' and 'interrupt_base')
Added a .text.head section simliar to what other architectures do since
modpost already excludes this from its warnings.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Make it so that SPE support can be determined at runtime. This is similiar
to how we handle AltiVec. This allows us to have SPE support built in and
work on processors with and without SPE.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Now that the generic code doesn't assign resources for Freescale
PHBs we dont have to explicitly exclude it.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Updated the device trees to have the PCI nodes be at the same level as
the SOC node. This is to make it so that the SOC nodes children address
space is just on chip registers and not other bus memory as well.
Also, for PCIe nodes added a P2P bridge to handle the virtual P2P bridge
that exists in the PHB.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Removed the following cruft from .dts files:
* 32-bit in cpu node -- doesn't exist in any spec and not used by kernel
* removed built-in (chrp legacy)
* Removed #interrupt-cells in places they don't need to be set
* Fixed ranges on lite5200*
* Removed clock-frequency from i8259 pic node, not sure where this came from
* Removed big-endian from i8259 pic nodes, this was just bogus
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Added basic board port for MPC8572 DS reference platform that is
similiar to the MPC8544/33 DS reference platform in uniprocessor mode.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This adds code to handle alignment traps generated by the following
SPE (signal processing engine) load/store instructions, by emulating
the instruction in the kernel (as is done for other instructions that
generate alignment traps):
evldd[x] Vector Load Double Word into Double Word [Indexed]
evldw[x] Vector Load Double into Two Words [Indexed]
evldh[x] Vector Load Double into Four Half Words [Indexed]
evlhhesplat[x] Vector Load Half Word into Half Words Even and Splat [Indexed]
evlhhousplat[x] Vector Load Half Word into Half Word Odd Unsigned and Splat [Indexed]
evlhhossplat[x] Vector Load Half Word into Half Word Odd Signed and Splat [Indexed]
evlwhe[x] Vector Load Word into Two Half Words Even [Indexed]
evlwhou[x] Vector Load Word into Two Half Words Odd Unsigned (zero-extended) [Indexed]
evlwhos[x] Vector Load Word into Two Half Words Odd Signed (with sign extension) [Indexed]
evlwwsplat[x] Vector Load Word into Word and Splat [Indexed]
evlwhsplat[x] Vector Load Word into Two Half Words and Splat [Indexed]
evstdd[x] Vector Store Double of Double [Indexed]
evstdw[x] Vector Store Double of Two Words [Indexed]
evstdh[x] Vector Store Double of Four Half Words [Indexed]
evstwhe[x] Vector Store Word of Two Half Words from Even [Indexed]
evstwho[x] Vector Store Word of Two Half Words from Odd [Indexed]
evstwwe[x] Vector Store Word of Word from Even [Indexed]
evstwwo[x] Vector Store Word of Word from Odd [Indexed]
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
1. Update the way get_brgfreq() finds things in the device tree.
It now uses names that are less namespace polluting. The old names
are supported until all boards are converted.
2. "size" is changed from unsigned int to int, to match what
of_get_property() expects.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
1. Fix RTC type - it is a rs5c372a, not rs5c372b
2. Configure both UART interrupts edge-triggered
3. Add a license header to ls_uart.c
4. Check for running on linkstation in a late_initcall() function. Needed
for multiplatform builds, even though linkstation doesn't support them
yet
5. Remove unneeded #include from linkstation.c
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Renamed functions in 85xx_ds from 8544 to 85xx.
Kept an unique machine def/probe for the MPC8544 DS board to
handle some subtle differences between the future board based
on the DS platform.
Also fixed building w/o CONFIG_PCI and minor whitespace fixes.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Renamed the mpc8544_ds.c board code to mpc85xx_ds.c to make it more
generic in prep for other boards based on the same platform.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
The ucc_geth_mii code is based on the gianfar_mii code that use to include
ocp.h. ucc never need this and it causes issues when we want to kill
arch/ppc includes from arch/powerpc.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Add some more info to the PS3 storage probe debug output.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Add new error codes that may be returned by the LV1 hypervisor
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Currently, the ps3 kernel fails to build without smp but with kexec, as
ps3_kexec_cpu_down needs ps3_smp_cleanup_cpu, which isn't defined on UP
kernels. This change adds an empty ps3_smp_cleanup_cpu for UP kernels.
Booted on ps3.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Some versions of PWRficient 1682M have an interrupt controller in which
the first register in each pair for interrupt sources doesn't always
read with the right polarity/sense values.
To work around this, keep a software copy of the register instead. Since
it's not modified from the mpic itself, it's a feasible solution. Still,
keep it under a config option to avoid wasting memory on other platforms.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This replaces the binding for flash chips in booting-without-of.txt
with an clarified and improved version. It also makes
drivers/mtd/maps/physmap_of.c recognize this new binding. Finally it
revises the Ebony device tree source to use the new binding as an
example.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Previously, the TLB miss handlers assumed that pages above KERNELBASE are
always present and read/write. This assumption is false in the case of
CONFIG_DEBUG_PAGEALLOC.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Some firmwares (such as PlanetCore) only provide a base MAC address, and
expect the kernel to set certain bits to generate the addresses for the
other ports. As such, MAC addresses are generated that may not correspond
to actual hardware.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
