David Brownell [Tue, 5 Feb 2008 06:28:28 +0000 (22:28 -0800)] 
gpiolib: avr32 at32ap platform support
Teach AVR32 to use the "GPIO Library" when exposing its GPIOs, so that signals
on external chips (like GPIO expanders) can easily be used.
This mostly reorganizes some existing logic, with two minor changes in
behavior:
- The PSR registers are used instead of the previous "gpio_mask" values,
matching AT91 behavior and removing some duplication between that role
and that of "pinmux_mask".
- NR_IRQs grew to acommodate a bank of external GPIOs. Eventually this
number should probably become a board-specific config option.
There's a debugfs dump of status for the built-in GPIOs, showing which pins
have deglitching, pullups, or open drain drive enabled, as well as the ID
string used when requesting each IRQ.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
eric miao [Tue, 5 Feb 2008 06:28:27 +0000 (22:28 -0800)] 
deprecate obsolete pca9539 driver
Use drivers/gpio/pca9539.c instead.
Signed-off-by: eric miao <eric.miao@marvell.com>
Acked-by: Ben Gardner <bgardner@wabtec.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
eric miao [Tue, 5 Feb 2008 06:28:26 +0000 (22:28 -0800)]
gpiolib: pca9539 i2c gpio expander support
This adds a new-style I2C driver with basic support for the sixteen bit
PCA9539 GPIO expanders. These chips have multiple registers, push-pull output
drivers, and (not supported in this patch) pin change interrupts.
Board-specific code must provide "pca9539_platform_data" with each chip's
"i2c_board_info". That provides the GPIO numbers to be used by that chip, and
callbacks for board-specific setup/teardown logic.
Derived from drivers/i2c/chips/pca9539.c (which has no current known users).
This is faster and simpler; it uses 16-bit register access, and cache the
OUTPUT and DIRECTION registers for fast access
Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Tue, 5 Feb 2008 06:28:25 +0000 (22:28 -0800)]
mcp23s08 spi gpio expander support
Basic driver for 8-bit SPI based MCP23S08 GPIO expander, without support for
IRQs or the shared chipselect mechanism.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Tue, 5 Feb 2008 06:28:24 +0000 (22:28 -0800)]
gpiolib: pcf857x i2c gpio expander support
This is a new-style I2C driver for most common 8 and 16 bit I2C based
"quasi-bidirectional" GPIO expanders: pcf8574 or pcf8575, and several
compatible models (mostly faster, supporting I2C at up to 1 MHz).
The driver exposes the GPIO signals using the platform-neutral GPIO
programming interface, so they are easily accessed by other kernel code. The
lack of such a flexible kernel API has been a big factor in the proliferation
of board-specific drivers for these chips... stuff that rarely makes it
upstream since it's so ugly. This driver will let such boards use standard
calls.
Since it's a new-style driver, these devices must be configured as part of
board-specific init. That eliminates the need for error-prone manual
configuration of module parameters, and makes compatibility with legacy
drivers (pcf8574.c, pc8575.c) for these chips easier (there's a clear
either/or disjunction).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Philipp Zabel [Tue, 5 Feb 2008 06:28:22 +0000 (22:28 -0800)] 
gpiolib support for the PXA architecture
This adds gpiolib support for the PXA architecture:
- move all GPIO API functions from generic.c into gpio.c
- convert the gpio_get/set_value macros into inline functions
This makes it easier to hook up GPIOs provided by external chips like
ASICs and CPLDs.
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Minor ARM fixup from David Brownell folded into this ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Tue, 5 Feb 2008 06:28:21 +0000 (22:28 -0800)]
gpiolib: update Documentation/gpio.txt
Update Documentation/gpio.txt, primarily to include the new "gpiolib"
infrastructure.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Tue, 5 Feb 2008 06:28:20 +0000 (22:28 -0800)]
gpiolib: add gpio provider infrastructure
Provide new implementation infrastructure that platforms may choose to use
when implementing the GPIO programming interface. Platforms can update their
GPIO support to use this. In many cases the incremental cost to access a
non-inlined GPIO should be less than a dozen instructions, with the memory
cost being about a page (total) of extra data and code. The upside is:
* Providing two features which were "want to have (but OK to defer)" when
GPIO interfaces were first discussed in November 2006:
- A "struct gpio_chip" to plug in GPIOs that aren't directly supported
by SOC platforms, but come from FPGAs or other multifunction devices
using conventional device registers (like UCB-1x00 or SM501 GPIOs,
and southbridges in PCs with more open specs than usual).
- Full support for message-based GPIO expanders, where registers are
accessed through sleeping I/O calls. Previous support for these
"cansleep" calls was just stubs. (One example: the widely used
pcf8574 I2C chips, with 8 GPIOs each.)
* Including a non-stub implementation of the gpio_{request,free}() calls,
making those calls much more useful. The diagnostic labels are also
recorded given DEBUG_FS, so /sys/kernel/debug/gpio can show a snapshot
of all GPIOs known to this infrastructure.
The driver programming interfaces introduced in 2.6.21 do not change at all;
this infrastructure is entirely below those covers.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Tue, 5 Feb 2008 06:28:17 +0000 (22:28 -0800)]
gpiolib: add drivers/gpio directory
Add an empty drivers/gpio directory for gpiolib infrastructure and GPIO
expanders. It will be populated by later patches.
This won't be the only place to hold such gpio_chip code. Many external chips
add a few GPIOs as secondary functionality (such as MFD drivers) and platform
code frequently needs to closely integrate GPIO and IRQ support.
This is placed *early* in the build/link sequence since it's common for other
drivers to depend on GPIOs to do their work, so they must be initialized early
in the device_initcall() sequence.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:17 +0000 (22:28 -0800)] 
iommu sg merging: call dma_set_seg_boundary in __scsi_alloc_queue()
This is a one-line patch to add the following to __scsi_alloc_queue():
dma_set_seg_boundary(dev, shost->dma_boundary);
This is the simplest approach but the result looks odd,
__scsi_alloc_queue() does:
blk_queue_segment_boundary(q, shost->dma_boundary);
dma_set_seg_boundary(dev, shost->dma_boundary);
blk_queue_max_segment_size(q, dma_get_max_seg_size(dev));
I think that it would be better to set up segment boundary in the same
way as we did for the maximum segment size. That is, removing
shost->dma_boundary and LLDs call pci_set_dma_seg_boundary (or its
friends).
Then __scsi_alloc_queue() can set up both limits in the same way:
blk_queue_segment_boundary(q, dma_get_seg_boundary(dev));
blk_queue_max_segment_size(q, dma_get_max_seg_size(dev));
killing dma_boundary in scsi_host_template needs a large patch for
libata (dma_boundary is used by only libata and sym53c8xx). I'll send
a patch to do that if it is acceptable. James and Jeff?
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:16 +0000 (22:28 -0800)]
iommu sg merging: swiotlb: respect the segment boundary limits
This patch makes swiotlb not allocate a memory area spanning LLD's segment
boundary.
is_span_boundary() judges whether a memory area spans LLD's segment boundary.
If map_single finds such a area, map_single tries to find the next available
memory area.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:14 +0000 (22:28 -0800)]
iommu sg merging: PCI: add dma segment boundary support
This adds PCI's accessor for segment_boundary_mask in device_dma_parameters.
The default segment_boundary is set to 0xffffffff, same to the block layer's
default value (and the scsi mid layer uses the same value).
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:13 +0000 (22:28 -0800)]
iommu sg merging: add accessors for segment_boundary_mask in device_dma_parameters()
This adds new accessors for segment_boundary_mask in device_dma_parameters
structure in the same way I did for max_segment_size. So we can easily change
where to place struct device_dma_parameters in the future.
dma_get_segment boundary returns 0xffffffff if dma_parms in struct device
isn't set up properly. 0xffffffff is the default value used in the block
layer and the scsi mid layer.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:12 +0000 (22:28 -0800)]
iommu sg: kill __clear_bit_string and find_next_zero_string
This kills unused __clear_bit_string and find_next_zero_string (they
were used by only gart and calgary IOMMUs).
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:11 +0000 (22:28 -0800)]
iommu sg: x86: convert gart IOMMU to use the IOMMU helper
This patch converts gart IOMMU to use the IOMMU helper functions. The
IOMMU doesn't allocate a memory area spanning LLD's segment boundary
anymore.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:10 +0000 (22:28 -0800)]
iommu sg: x86: convert calgary IOMMU to use the IOMMU helper
This patch converts calgary IOMMU to use the IOMMU helper
functions. The IOMMU doesn't allocate a memory area spanning LLD's
segment boundary anymore.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:09 +0000 (22:28 -0800)]
iommu sg: powerpc: remove DMA 4GB boundary protection
Previously, during initialization of the IOMMU tables, the last entry
at each 4GB boundary is marked as used since there are many adapters
which cannot handle DMAing across any 4GB boundary.
The IOMMU doesn't allocate a memory area spanning LLD's segment
boundary anymore. The segment boundary of devices are set to 4GB by
default. So we can remove 4GB boundary protection now.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:08 +0000 (22:28 -0800)]
iommu sg: powerpc: convert iommu to use the IOMMU helper
This patch converts PPC's IOMMU to use the IOMMU helper functions. The IOMMU
doesn't allocate a memory area spanning LLD's segment boundary anymore.
iseries_hv_alloc and iseries_hv_map don't have proper device
struct. 4GB boundary is used for them.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:07 +0000 (22:28 -0800)]
iommu sg: add IOMMU helper functions for the free area management
This adds IOMMU helper functions for the free area management. These
functions take care of LLD's segment boundary limit for IOMMUs. They would be
useful for IOMMUs that use bitmap for the free area management.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:06 +0000 (22:28 -0800)]
iommu sg merging: aacraid: use pci_set_dma_max_seg_size
This sets the segment size limit properly via pci_set_dma_max_seg_size
and remove blk_queue_max_segment_size because scsi-ml calls it.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:05 +0000 (22:28 -0800)]
iommu sg merging: sata_inic162x: use pci_set_dma_max_seg_size
This sets the segment size limit properly via pci_set_dma_max_seg_size
and remove blk_queue_max_segment_size because scsi-ml calls it.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:05 +0000 (22:28 -0800)]
iommu sg merging: call blk_queue_segment_boundary in __scsi_alloc_queue
request_queue and device struct must have the same value of a segment
size limit. This patch adds blk_queue_segment_boundary in
__scsi_alloc_queue so LLDs don't need to call both
blk_queue_segment_boundary and set_dma_max_seg_size. A LLD can change
the default value (64KB) can call device_dma_parameters accessors like
pci_set_dma_max_seg_size when allocating scsi_host.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:03 +0000 (22:28 -0800)]
iommu sg merging: parisc: make iommu respect the segment size limits
This patch makes iommu respect segment size limits when merging sg
lists.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:28:02 +0000 (22:28 -0800)]
iommu sg merging: sparc64: make iommu respect the segment size limits
This patch makes iommu respect segment size limits when merging sg
lists.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:27:58 +0000 (22:27 -0800)]
iommu sg merging: alpha: make pci_iommu respect the segment size limits
This patch makes pci_iommu respect segment size limits when merging sg
lists.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:27:58 +0000 (22:27 -0800)]
iommu sg merging: IA64: make sba_iommu respect the segment size limits
This patch makes sba iommu respect segment size limits when merging sg
lists.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:27:57 +0000 (22:27 -0800)]
iommu sg merging: ppc: make iommu respect the segment size limits
This patch makes iommu respect segment size limits when merging sg
lists.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:27:56 +0000 (22:27 -0800)]
iommu sg merging: x86: make pci-gart iommu respect the segment size limits
This patch makes pci-gart iommu respect segment size limits when
merging sg lists.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:27:55 +0000 (22:27 -0800)]
iommu sg merging: PCI: add device_dma_parameters support
This adds struct device_dma_parameters in struct pci_dev and properly
sets up a pointer in struct device.
The default max_segment_size is set to 64K, same to the block layer's
default value.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Mostly-acked-by: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
FUJITA Tomonori [Tue, 5 Feb 2008 06:27:55 +0000 (22:27 -0800)]
iommu sg merging: add device_dma_parameters structure
IOMMUs merges scatter/gather segments without considering a low level
driver's restrictions. The problem is that IOMMUs can't access to the
limitations because they are in request_queue.
This patchset introduces a new structure, device_dma_parameters,
including dma information. A pointer to device_dma_parameters is added
to struct device. The bus specific structures (like pci_dev) includes
device_dma_parameters. Low level drivers can use dma_set_max_seg_size
to tell IOMMUs about the restrictions.
We can move more dma stuff in struct device (like dma_mask) to struct
device_dma_parameters later (needs some cleanups before that).
This includes patches for all the IOMMUs that could merge sg (x86_64,
ppc, IA64, alpha, sparc64, and parisc) though only the ppc patch was
tested. The patches for other IOMMUs are only compile tested.
This patch:
Add a new structure, device_dma_parameters, including dma information. A
pointer to device_dma_parameters is added to struct device.
- there are only max_segment_size and segment_boundary_mask there but we'll
move more dma stuff in struct device (like dma_mask) to struct
device_dma_parameters later. segment_boundary_mask is not supported yet.
- new accessors for the dma parameters are added. So we can easily change
where to place struct device_dma_parameters in the future.
- dma_get_max_seg_size returns 64K if dma_parms in struct device isn't set
up properly. 64K is the default max_segment_size in the block layer.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mark A. Greer [Tue, 5 Feb 2008 06:27:54 +0000 (22:27 -0800)] 
serial: MPSC: set baudrate when BRG divider is set.
The clock to generate the desired baudrate with the MPSC is first divided
by the Baud Rate Generator (BRG) and then by the MPSC itself. So, when the
BRG divider is changed, the MPSC divider must also be changed to generate
the correct baudrate. During MPSC initialization, the BRG divider is
changed but the MPSC divider isn't changed until much later. This results
in some printk's coming out garbled. To fix that, set the MPSC divider at
the same time that the BRG divider is changed.
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Tue, 5 Feb 2008 06:27:53 +0000 (22:27 -0800)] 
serial: Coding style
Coding style tweaks and printk levels.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Cox [Tue, 5 Feb 2008 06:27:53 +0000 (22:27 -0800)]
serial: speed setup failure reporting
Invalid speeds are forced to 9600. Update the code for this to encode new
style baud rates properly.
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Russell King [Tue, 5 Feb 2008 06:27:52 +0000 (22:27 -0800)] 
serial: avoid stalling suspend if serial port won't drain
Some ports seem to be unable to drain their transmitters on shut down. Such a
problem can occur if the port is programmed for hardware imposed flow control,
characters are in the FIFO but the CTS signal is inactive.
Normally, this isn't a problem because most places where we wait for the
transmitter to drain have a time-out. However, there is no timeout in the
suspend path.
Give a port 30ms to drain; this is an arbitary value chosen to avoid long
delays if there are many such ports in the system, while giving a reasonable
chance for a single port to drain. Should a port not drain within this
timeout, issue a warning.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Russell King [Tue, 5 Feb 2008 06:27:51 +0000 (22:27 -0800)]
serial: avoid waking up closed serial ports on resume
When we boot, serial ports remain in low power mode until they're used either
by userspace or for the kernel console.
However, if you suspend the system, and then resume, all serial ports will be
taken out of low power mode. This is bad news for embedded devices where this
can mean higher power consumption.
Only bring a serial port out of low power mode if the port is being used as
the kernel console, or is in use by userspace.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Will Newton [Tue, 5 Feb 2008 06:27:50 +0000 (22:27 -0800)] 
8250.c: support specifying DW APB UARTs in device platform_data
Allow the private_data field to be specified in platform_data for the
standard 8250/16550 UART. This field is used by DW APB type UARTs and
without this patch it's only possible to set this field when registering
the port by hand. If private_data is not set then the driver will
potentially oops with a NULL pointer dereference.
Signed-off-by: Will Newton <will.newton@gmail.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Krauth.Julien [Tue, 5 Feb 2008 06:27:49 +0000 (22:27 -0800)] 
serial: add ADDI-DATA GmbH Communication cardsin8250_pci.c and pci_ids.h
Add ADDI-DATA GmbH communication cards to 8250_pci driver. Supported cards
are:
APCI-7300, APCI-7420, APCI-7500, APCI-7800 APCI-7300-2, APCI-7420-2,
APCI-7500-2 APCI-7300-3, APCI-7420-3, APCI-7500-3, APCI-7800-3
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Krauth J. <krauth.julien@addi-data.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jiri Olsa [Tue, 5 Feb 2008 06:27:48 +0000 (22:27 -0800)] 
drivers/serial/s3c2410.c: remove dead config symbols
Remove dead config symbol.
Signed-off-by: Jiri Olsa <olsajiri@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Dooks <ben@fluff.org>
Cc: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yinghai Lu [Tue, 5 Feb 2008 06:27:46 +0000 (22:27 -0800)] 
serial: keep the DTR setting for serial console.
with reverting "x86, serial: convert legacy COM ports to platform devices",
we will have the serial console before the port is probled again.
uart_add_one_port==>uart_configure_port==>set_mcttrl(port, 0) will clear
the DTR setting by uart_set_options(). then I will lose my output from
serial console again.
So try to keep DTR in uart_configure_port()
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Andi Kleen <ak@suse.de>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Julia Lawall [Tue, 5 Feb 2008 06:27:46 +0000 (22:27 -0800)] 
drivers/pcmcia: add missing pci_dev_get
pci_get_slot does a pci_dev_get, so pci_dev_put needs to be called in an
error case.
An extract of the semantic match used to find the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
type find1.T,T1,T2;
identifier find1.E;
statement find1.S;
expression x1,x2,x3;
expression find1.test;
int ret != 0;
@@
T E;
...
(
* E = pci_get_slot(...);
if (E == NULL) S
|
* if ((E = pci_get_slot(...)) == NULL)
S
)
... when != pci_dev_put(...,(T1)E,...)
when != if (E != NULL) { ... pci_dev_put(...,(T1)E,...); ...}
when != x1 = (T1)E
when != E = x3;
when any
if (test) {
... when != pci_dev_put(...,(T2)E,...)
when != if (E != NULL) { ... pci_dev_put(...,(T2)E,...); ...}
when != x2 = (T2)E
(
* return;
|
* return ret;
)
}
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Julia Lawall [Tue, 5 Feb 2008 06:27:44 +0000 (22:27 -0800)]
drivers/pcmcia: Add missing iounmap
of_iomap calls ioremap, and so should be matched with an iounmap. At the
two error returns, the result of calling of_iomap is only stored in a local
variable, so these error paths need to call iounmap. Furthermore, this
function ultimately stores the result of of_iomap in an array that is local
to the file. These values should be iounmapped at some point. I have
added a corresponding call to iounmap at the end of the function
m8xx_remove.
The problem was found using the following semantic match.
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@@
type T,T1,T2;
identifier E;
statement S;
expression x1,x2,x3;
int ret;
@@
T E;
...
* E = of_iomap(...);
if (E == NULL) S
... when != iounmap(...,(T1)E,...)
when != if (E != NULL) { ... iounmap(...,(T1)E,...); ...}
when != x1 = (T1)E
when != E = x3;
when any
if (...) {
... when != iounmap(...,(T2)E,...)
when != if (E != NULL) { ... iounmap(...,(T2)E,...); ...}
when != x2 = (T2)E
(
* return;
|
* return ret;
)
}
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Vitaly Bordug <vitb@kernel.crashing.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Tue, 5 Feb 2008 06:27:42 +0000 (22:27 -0800)]
at91_cf: use generic gpio calls
Update the AT91 CF driver to use the generic GPIO calls instead of the
AT91-specific ones; and request exclusive use of those signals.
Minor tweaks to cleanup code paths: always in reverse order of how the
resources were allocated, with remove() matching the fault paths of
probe().
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Richard Knutsson [Tue, 5 Feb 2008 06:27:42 +0000 (22:27 -0800)] 
pcmcia/pcnet_cs: fix 'shadow variable' warning
Fixing:
CHECK drivers/net/pcmcia/pcnet_cs.c
drivers/net/pcmcia/pcnet_cs.c:523:15: warning: symbol 'hw_info' shadows an earlier one
drivers/net/pcmcia/pcnet_cs.c:148:18: originally declared here
Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Richard Knutsson [Tue, 5 Feb 2008 06:27:41 +0000 (22:27 -0800)]
pcmcia/fmvj18x_cs: fix 'shadow variable' warning
Fixing:
CHECK drivers/net/pcmcia/fmvj18x_cs.c
drivers/net/pcmcia/fmvj18x_cs.c:1205:6: warning: symbol 'i' shadows an earlier one
drivers/net/pcmcia/fmvj18x_cs.c:1179:9: originally declared here
Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Richard Knutsson [Tue, 5 Feb 2008 06:27:41 +0000 (22:27 -0800)]
pcmcia/axnet_cs: make use of 'max()' instead of handcrafted one
Use 'max(x,y)' instead of 'x < y ? y : x'.
Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Richard Knutsson [Tue, 5 Feb 2008 06:27:40 +0000 (22:27 -0800)]
pcmcia/axnet_cs: make functions static
Fixing:
CHECK drivers/net/pcmcia/axnet_cs.c
drivers/net/pcmcia/axnet_cs.c:994:5: warning: symbol 'ax_close' was not declared. Should it be static?
drivers/net/pcmcia/axnet_cs.c:1017:6: warning: symbol 'ei_tx_timeout' was not declared. Should it be static?
Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Richard Knutsson [Tue, 5 Feb 2008 06:27:39 +0000 (22:27 -0800)]
pcmcia/3c574_cs: fix 'shadow variable' warning
Fixing:
CHECK drivers/net/pcmcia/3c574_cs.c
drivers/net/pcmcia/3c574_cs.c:695:7: warning: symbol 'i' shadows an earlier one
drivers/net/pcmcia/3c574_cs.c:636:6: originally declared here
Signed-off-by: Richard Knutson <ricknu-0@student.ltu.se>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Tue, 5 Feb 2008 06:27:38 +0000 (22:27 -0800)] 
pcmcia: include bad CIS filename in error message
- Print the invalid CIS filename in the invalid filename message.
- Use sizeof() instead of hard-coded constant for buffer size.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Tue, 5 Feb 2008 06:27:37 +0000 (22:27 -0800)] 
pcmcia: stop updating dev->power.power_state
This stops the pcmcia core from using dev->power.power_state; that field is
deprecated (overdue for removal) and the only reason to update it was to make
the /sys/devices/.../power/state files (now removed) work better.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Olof Johansson [Tue, 5 Feb 2008 06:27:35 +0000 (22:27 -0800)] 
pcmcia: replace kio_addr_t with unsigned int everywhere
Remove kio_addr_t, and replace it with unsigned int. No known architecture
needs more than 32 bits for IO addresses and ports and having a separate type
for it is just messy.
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Olof Johansson [Tue, 5 Feb 2008 06:27:34 +0000 (22:27 -0800)]
pcmcia: convert some internal-only ioaddr_t to unsigned int
Convert the io_req_t members to unsigned int, to allow use on machines with
more than 16 bits worth of IO ports (i.e. secondary busses on ppc64, etc).
There was only a couple of places in drivers where a change was needed. I
left printk formats alone (there are lots of %04x-style formats in there),
mostly to not change the format on the platforms that only have 16-bit io
addresses, but also because the padding doesn't really add all that much value
most of the time.
I found only one sprintf of an address, and upsized the string accordingly (I
doubt anyone will have anywhere near INT_MAX as irq value, but at least
there's room for it now).
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jiri Olsa [Tue, 5 Feb 2008 06:27:33 +0000 (22:27 -0800)]
m32r: remove dead config symbols from M32R code
remove dead config symbols from M32R code
Signed-off-by: Jiri Olsa <olsajiri@gmail.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Tue, 5 Feb 2008 06:27:31 +0000 (22:27 -0800)] 
include/asm-powerpc/nvram.h needs list.h
CC [M] sound/ppc/awacs.o
In file included from sound/ppc/awacs.c:24:
include/asm/nvram.h:62: error: field 'partition' has incomplete type
Reported-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Al Viro [Tue, 5 Feb 2008 06:27:29 +0000 (22:27 -0800)] 
sdio: fix module device table definition for m68k
FATAL: drivers/bluetooth/btsdio: sizeof(struct sdio_device_id)=12 is not a modulo of the size of section __mod_sdio_device_table=30.
Fix definition of struct sdio_device_id in mod_devicetable.h
m68k has 16bit alignment for unsigned long.
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Pierre Ossman <drzeus@drzeus.cx>
CC: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Davide Libenzi [Tue, 5 Feb 2008 06:27:29 +0000 (22:27 -0800)] 
timerfd: un-break CONFIG_TIMERFD
Remove the broken status to CONFIG_TIMERFD.
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Davide Libenzi [Tue, 5 Feb 2008 06:27:28 +0000 (22:27 -0800)]
timerfd: wire the new timerfd API to the x86 family
Wires up the new timerfd API to the x86 family.
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Davide Libenzi [Tue, 5 Feb 2008 06:27:26 +0000 (22:27 -0800)]
timerfd: new timerfd API
This is the new timerfd API as it is implemented by the following patch:
int timerfd_create(int clockid, int flags);
int timerfd_settime(int ufd, int flags,
const struct itimerspec *utmr,
struct itimerspec *otmr);
int timerfd_gettime(int ufd, struct itimerspec *otmr);
The timerfd_create() API creates an un-programmed timerfd fd. The "clockid"
parameter can be either CLOCK_MONOTONIC or CLOCK_REALTIME.
The timerfd_settime() API give new settings by the timerfd fd, by optionally
retrieving the previous expiration time (in case the "otmr" parameter is not
NULL).
The time value specified in "utmr" is absolute, if the TFD_TIMER_ABSTIME bit
is set in the "flags" parameter. Otherwise it's a relative time.
The timerfd_gettime() API returns the next expiration time of the timer, or
{0, 0} if the timerfd has not been set yet.
Like the previous timerfd API implementation, read(2) and poll(2) are
supported (with the same interface). Here's a simple test program I used to
exercise the new timerfd APIs:
http://www.xmailserver.org/timerfd-test2.c
[akpm@linux-foundation.org: coding-style cleanups]
[akpm@linux-foundation.org: fix ia64 build]
[akpm@linux-foundation.org: fix m68k build]
[akpm@linux-foundation.org: fix mips build]
[akpm@linux-foundation.org: fix alpha, arm, blackfin, cris, m68k, s390, sparc and sparc64 builds]
[heiko.carstens@de.ibm.com: fix s390]
[akpm@linux-foundation.org: fix powerpc build]
[akpm@linux-foundation.org: fix sparc64 more]
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Davide Libenzi [Tue, 5 Feb 2008 06:27:25 +0000 (22:27 -0800)]
timerfd: introduce a new hrtimer_forward_now() function
I think that advancing the timer against the timer's current "now" can be a
pretty common usage, so, w/out exposing hrtimer's internals, we add a new
hrtimer_forward_now() function.
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Tue, 5 Feb 2008 06:27:24 +0000 (22:27 -0800)] 
exec: rework the group exit and fix the race with kill
As Roland pointed out, we have the very old problem with exec. de_thread()
sets SIGNAL_GROUP_EXIT, kills other threads, changes ->group_leader and then
clears signal->flags. All signals (even fatal ones) sent in this window
(which is not too small) will be lost.
With this patch exec doesn't abuse SIGNAL_GROUP_EXIT. signal_group_exit(),
the new helper, should be used to detect exit_group() or exec() in progress.
It can have more users, but this patch does only strictly necessary changes.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Robin Holt <holt@sgi.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Tue, 5 Feb 2008 06:27:24 +0000 (22:27 -0800)]
remove handle_group_stop() in favor of do_signal_stop()
Every time we set SIGNAL_GROUP_EXIT or clear SIGNAL_STOP_DEQUEUED we also
reset ->group_stop_count.
This means that the SIGNAL_GROUP_EXIT check in handle_group_stop() is not
needed, and do_signal_stop() should check SIGNAL_STOP_DEQUEUED only when
->group_stop_count == 0. With these changes handle_group_stop() becomes the
subset of do_signal_stop(), we can kill it and use do_signal_stop() instead.
Also, a preparation for the next patch.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Robin Holt <holt@sgi.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Tue, 5 Feb 2008 06:27:23 +0000 (22:27 -0800)]
__group_complete_signal(): fix coredump with group stop race
When __group_complete_signal() sees sig_kernel_coredump() signal, it starts
the group stop, but sets ->group_exit_task = t in a hope that "t" will
actually dequeue this signal and invoke do_coredump(). However, by the
time "t" enters get_signal_to_deliver() it is possible that the signal was
blocked/ignored or we have another pending !SIG_KERNEL_COREDUMP_MASK signal
which will be dequeued first. This means the task could be stopped but not
killed.
Remove this code from __group_complete_signal(). Note also this patch
removes the bogus signal_wake_up(t, 1). This thread can't be
STOPPED/TRACED, note the corresponding check in wants_signal().
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Robin Holt <holt@sgi.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Tue, 5 Feb 2008 06:27:22 +0000 (22:27 -0800)]
clone: prepare to recycle CLONE_STOPPED
Ulrich says that we never used this clone flags and that nothing should be
using it.
As we're down to only a single bit left in clone's flags argument, let's add a
warning to check that no userspace is actually using it. Hopefully we will
be able to recycle it.
Roland said:
CLONE_STOPPED was previously used by some NTPL versions when under
thread_db (i.e. only when being actively debugged by gdb), but not for a
long time now, and it never worked reliably when it was used. Removing it
seems fine to me.
[akpm@linux-foundation.org: it looks like CLONE_DETACHED is being used]
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Tue, 5 Feb 2008 06:27:21 +0000 (22:27 -0800)]
get_task_comm(): return the result
It was dumb to make get_task_comm() return void. Change it to return a
pointer to the resulting output for caller convenience.
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Peter Zijlstra [Tue, 5 Feb 2008 06:27:20 +0000 (22:27 -0800)] 
lockdep: annotate epoll
On Sat, 2008-01-05 at 13:35 -0800, Davide Libenzi wrote:
> I remember I talked with Arjan about this time ago. Basically, since 1)
> you can drop an epoll fd inside another epoll fd 2) callback-based wakeups
> are used, you can see a wake_up() from inside another wake_up(), but they
> will never refer to the same lock instance.
> Think about:
>
> dfd = socket(...);
> efd1 = epoll_create();
> efd2 = epoll_create();
> epoll_ctl(efd1, EPOLL_CTL_ADD, dfd, ...);
> epoll_ctl(efd2, EPOLL_CTL_ADD, efd1, ...);
>
> When a packet arrives to the device underneath "dfd", the net code will
> issue a wake_up() on its poll wake list. Epoll (efd1) has installed a
> callback wakeup entry on that queue, and the wake_up() performed by the
> "dfd" net code will end up in ep_poll_callback(). At this point epoll
> (efd1) notices that it may have some event ready, so it needs to wake up
> the waiters on its poll wait list (efd2). So it calls ep_poll_safewake()
> that ends up in another wake_up(), after having checked about the
> recursion constraints. That are, no more than EP_MAX_POLLWAKE_NESTS, to
> avoid stack blasting. Never hit the same queue, to avoid loops like:
>
> epoll_ctl(efd2, EPOLL_CTL_ADD, efd1, ...);
> epoll_ctl(efd3, EPOLL_CTL_ADD, efd2, ...);
> epoll_ctl(efd4, EPOLL_CTL_ADD, efd3, ...);
> epoll_ctl(efd1, EPOLL_CTL_ADD, efd4, ...);
>
> The code "if (tncur->wq == wq || ..." prevents re-entering the same
> queue/lock.
Since the epoll code is very careful to not nest same instance locks
allow the recursion.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Tested-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Tue, 5 Feb 2008 06:27:19 +0000 (22:27 -0800)]
drivers/net/wireless/b43/main.c needs io.h
m68k:
drivers/net/wireless/b43/main.c:251: error: implicit declaration of function 'mmiowb'
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Tue, 5 Feb 2008 06:27:18 +0000 (22:27 -0800)]
sys_remap_file_pages: fix ->vm_file accounting
Fix ->vm_file accounting, mmap_region() may do do_munmap().
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Tue, 5 Feb 2008 06:27:18 +0000 (22:27 -0800)]
kvm: i386 fix
arch/x86/kvm/x86.c: In function 'emulator_cmpxchg_emulated':
arch/x86/kvm/x86.c:1746: warning: passing argument 2 of 'vcpu->arch.mmu.gva_to_gpa' makes integer from pointer without a cast
arch/x86/kvm/x86.c:1746: warning: 'addr' is used uninitialized in this function
Is true. Local variable `addr' shadows incoming arg `addr'. Avi is on
vacation for a while, so...
Cc: Avi Kivity <avi@qumranet.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adrian Bunk [Tue, 5 Feb 2008 11:01:43 +0000 (03:01 -0800)] 
[SPARC64] pci_sun4v.c: Section fixes.
WARNING: vmlinux.o(.text+0x39be4): Section mismatch in reference from the function probe_existing_entries() to the function .init.text:page_in_phys_avail()
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Airlie [Tue, 5 Feb 2008 05:05:23 +0000 (15:05 +1000)] 
agp: remove flush_agp_mappings calls from new flush handling code
Signed-off-by: Dave Airlie <airlied@linux.ie>
Dave Airlie [Fri, 25 Jan 2008 01:23:04 +0000 (11:23 +1000)]
intel-agp: introduce IS_I915 and do some cleanups..
Add a new IS_I915 and also do some checkpatch whitespace cleanups.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Zhenyu Wang [Wed, 23 Jan 2008 05:49:26 +0000 (15:49 +1000)] 
[intel_agp] fix name for G35 chipset
Change origin chipset name i965G_1 to market name G35.
Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Dave Airlie [Wed, 23 Jan 2008 05:34:29 +0000 (15:34 +1000)] 
intel-agp: fixup resource handling in flush code.
The flush code resource handling was having problems where some BIOS
reserve the resource in a pnp block and some don't.
Also there was a bug in that configure was being called at resume
and resetting some of the structs.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Zhenyu Wang [Wed, 23 Jan 2008 04:54:37 +0000 (14:54 +1000)]
intel-agp: add new chipset ID
This one adds new pci ids for Intel intergrated graphics chipset, with gtt
table access change on it and new gtt table size definition.
Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Julia Lawall [Wed, 5 Dec 2007 21:55:36 +0000 (13:55 -0800)]
agp: remove unnecessary pci_dev_put
pci_get_class implicitly does a pci_dev_put on its second argument, so
pci_dev_put is only needed if there is a break out of the loop.
The semantic match detecting this problem is as follows:
// <smpl>
@@
expression dev;
expression E;
@@
* pci_dev_put(dev)
... when != dev = E
(
* pci_get_device(...,dev)
|
* pci_get_device_reverse(...,dev)
|
* pci_get_subsys(...,dev)
|
* pci_get_class(...,dev)
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
serue@us.ibm.com [Wed, 5 Dec 2007 21:55:36 +0000 (13:55 -0800)] 
agp: remove uid comparison as security check
In the face of containers and user namespaces, a uid==0 check for
security is not safe. Switch to a capability check.
I'm not sure I picked the right capability, but this being AGP
CAP_SYS_RAWIO seemed to make sense.
Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Andrew Morton [Thu, 29 Nov 2007 00:00:48 +0000 (10:00 +1000)]
fix AGP warning
drivers/char/agp/intel-agp.c: In function 'intel_i965_g33_setup_chipset_flush':
drivers/char/agp/intel-agp.c:872: warning: right shift count >= width of type
I wish the agp code wasn't written in a 10,000-column xterm :(
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Dave Airlie [Wed, 21 Nov 2007 06:36:31 +0000 (16:36 +1000)]
agp/intel: Add chipset flushing support for i8xx chipsets.
This is a bit of a large hammer but it makes sure the chipset is flushed
by writing out 1k of data to an uncached page. We may be able to get better
information in the future on how to this better.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Mon, 29 Oct 2007 08:06:10 +0000 (18:06 +1000)]
intel-agp: add chipset flushing support
This adds support for flushing the chipsets on the 915, 945, 965 and G33
families of Intel chips.
The BIOS doesn't seem to always allocate the BAR on the 965 chipsets
so I have to use pci resource code to create a resource
It adds an export for pcibios_align_resource.
Dave Airlie [Mon, 29 Oct 2007 05:14:03 +0000 (15:14 +1000)]
agp: add chipset flushing support to AGP interface
This bumps the AGP interface to 0.103.
Certain Intel chipsets contains a global write buffer, and this can require
flushing from the drm or X.org to make sure all data has hit RAM before
initiating a GPU transfer, due to a lack of coherency with the integrated
graphics device and this buffer.
This just adds generic support to the AGP interfaces, a follow-on patch
will add support to the Intel driver to use this interface.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Glenn Streiff [Tue, 5 Feb 2008 04:20:45 +0000 (20:20 -0800)] 
RDMA/nes: Add a driver for NetEffect RNICs
Add a standard NIC and RDMA/iWARP driver for NetEffect 1/10Gb ethernet adapters.
Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Olaf Kirch [Tue, 5 Feb 2008 04:20:44 +0000 (20:20 -0800)] 
IB/mthca: Return proper error codes from mthca_fmr_alloc()
If the allocation of the MTT or the mailbox failed, mthca_fmr_alloc()
would return 0 (success) no matter what. This leads to crashes a
little down the road, when we try to dereference eg mr->mtt, which was
really ERR_PTR(-Ewhatever).
Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Roland Dreier [Tue, 5 Feb 2008 04:20:44 +0000 (20:20 -0800)] 
IB: Avoid marking __devinitdata as const
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Roland Dreier [Tue, 5 Feb 2008 04:20:44 +0000 (20:20 -0800)]
IB/mlx4: Actually print out the driver version
The string mlx4_ib_version was defined, but never used. Print out the
version once when the first device is initialized.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Eli Cohen [Thu, 24 Jan 2008 14:38:06 +0000 (06:38 -0800)] 
IB/ib_mthca: Pre-link receive WQEs in Tavor mode
We have recently discovered that Tavor mode requires each WQE in a
posted list of receive WQEs to have a valid NDA field at all times.
This requirement holds true for regular QPs as well as for SRQs. This
patch prelinks the receive queue in a regular QP and keeps the free
list in SRQ always properly linked.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Reviewed-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Eli Cohen [Tue, 5 Feb 2008 04:20:44 +0000 (20:20 -0800)] 
IB/mthca: Remove checks for srq->first_free < 0
The SRQ receive posting functions make sure that srq->first_free never
becomes negative, so we can remove tests of whether it is negative.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Or Gerlitz [Tue, 29 Jan 2008 10:56:18 +0000 (12:56 +0200)] 
IB/fmr_pool: Allocate page list for pool FMRs only when caching enabled
Allocate memory for the page_list field of struct ib_pool_fmr only
when caching is enabled for the FMR pool, since the field is not used
otherwise. This can save significant amounts of memory for large
pools with caching turned off.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
David Dillow [Tue, 8 Jan 2008 22:08:52 +0000 (17:08 -0500)] 
IB/srp: Retry stale connections
When a host just goes away (crash, power loss, etc.) without tearing
down its IB connections, it can get stale connection errors when it
tries to reconnect to targets upon rebooting. Retrying the connection
a few times will prevent sysadmins from playing the "which disk(s)
went missing?" game.
This would have made things slightly quicker when tracking down some
of the recent bugs, but it also helps quite a bit when you've got a
large number of targets hanging off a wedged server.
Signed-off-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Jack Morgenstein [Sun, 27 Jan 2008 16:13:25 +0000 (18:13 +0200)] 
mlx4_core: Don't read reserved fields in mlx4_QUERY_ADAPTER()
The firmware QUERY_ADAPTER command does not return vendor_id,
device_id, and revision_id; eliminate these fields from the query.
Initialize the rev_id field of the mlx4 device via init_node_data (MAD
IFC query), as is done in the query_device verb implementation.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Jack Morgenstein [Sun, 27 Jan 2008 16:13:20 +0000 (18:13 +0200)]
IB/mthca: Don't read reserved fields in mthca_QUERY_ADAPTER()
For memfree devices, the firmware QUERY_ADAPTER command does not
return vendor_id, device_id, and revision_id; do not return these
fields in the QUERY_ADAPTER function for memfree devices.
Instead, for memfree devices, initialize the rev_id field of the mthca
device via init_node_data (MAD IFC query), as is done in the
query_device verb implementation.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Or Gerlitz [Tue, 29 Jan 2008 10:57:56 +0000 (12:57 +0200)]
IPoIB: Remove a misleading debug print
Commit
732a2170 ("IB/ipoib: Bound the net device to the ipoib_neigh
structue") left a misleading debug print (n->dev would be a bond
device only if boding is used). Clean it up.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Or Gerlitz [Thu, 17 Jan 2008 15:03:45 +0000 (17:03 +0200)]
IPoIB: Handle bonding failover race for connected neighbours too
Move up the code that checks for a situation where the remote GID
stored in the ipoib_neigh is different than the one present in the
neighbour (handle gratuitous ARP) or that a bonding fail over has
happened but the neighbour still has a pointer to an ipoib_neigh
created by a different device than the current slave. This will cause
the driver to apply the check also for connected mode neighbours.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Roland Dreier [Tue, 5 Feb 2008 04:20:42 +0000 (20:20 -0800)]
IB/mthca: Fix and simplify page size calculation in mthca_reg_phys_mr()
In mthca_reg_phys_mr(), we calculate the page size for the HCA
hardware to use to map the buffer list passed in by the consumer.
For example, if the consumer passes in
[0] addr 0x1000, size 0x1000
[1] addr 0x2000, size 0x1000
then the algorithm would come up with a page size of 0x2000 and a list
of two pages, at 0x0000 and 0x2000. Usually, this would work fine
since the memory region would start at an offset of 0x1000 and have a
length of 0x2000.
However, the old code did not take into account the alignment of the
IO virtual address passed in. For example, if the consumer passed in
a virtual address of 0x6000 for the above, then the offset of 0x1000
would not be used correctly because the page mask of 0x1fff would
result in an offset of 0.
We can fix this quite neatly by making sure that the page shift we use
is no bigger than the first bit where the start of the first buffer
and the IO virtual address differ. Also, we can further simplify the
code by removing the special case for a single buffer by noticing that
it doesn't matter if we use a page size that is too big. This allows
the loop to compute the page shift to be replaced with __ffs().
Thanks to Bryan S Rosenburg <rosnbrg@us.ibm.com> for pointing out the
original bug and suggesting several ways to improve this patch.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Hoang-Nam Nguyen [Fri, 25 Jan 2008 20:18:27 +0000 (21:18 +0100)] 
IB/ehca: Add PMA support
This patch enables ehca to redirect any PMA queries to the
actual PMA QP.
Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Reviewed-by: Joachim Fenkes <fenkes@de.ibm.com>
Reviewed-by: Christoph Raisch <raisch@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Joachim Fenkes [Fri, 25 Jan 2008 20:12:39 +0000 (21:12 +0100)] 
IB/ehca: Update sma_attr also in case of disruptive config change
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Joachim Fenkes [Thu, 24 Jan 2008 16:59:08 +0000 (17:59 +0100)]
IB/ehca: Prevent sending UD packets to QP0
The IB spec doesn't allow packets to QP0 sent on any other VL than VL15.
Hardware doesn't filter those packets on the send side, so we need to do
this in the driver and firmware.
As eHCA doesn't support QP0, we can just filter out all traffic going to
QP0, regardless of SL or VL.
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Sean Hefty [Mon, 10 Dec 2007 23:53:25 +0000 (15:53 -0800)] 
IB/cm: Add interim support for routed paths
Paths with hop_limit > 1 indicate that the connection will be routed
between IB subnets. Update the subnet local field in the CM REQ based
on the hop_limit value. In addition, if the path is routed, then set
the LIDs in the REQ to the permissive LIDs. This is used to indicate
to the passive side that it should use the LIDs in the received local
route header (LRH) associated with the REQ when programming the QP.
This is a temporary work-around to the IB CM to support IB router
development until the IB router specification is completed. It is not
anticipated that this work-around will cause any interoperability
issues with existing stacks or future stacks that will properly
support IB routers when defined.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Roland Dreier [Tue, 5 Feb 2008 04:20:41 +0000 (20:20 -0800)]
mlx4_core: Fix more section mismatches
Commit
3d73c288 ("mlx4_core: Fix section mismatches") fixed some of
the section mismatches introduced when error recovery was added, but
there were still more cases of errory recovery code calling into
__devinit code from regular .text. Fix this by getting rid of the
now-incorrect __devinit annotations.
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Linus Torvalds [Mon, 4 Feb 2008 23:29:53 +0000 (15:29 -0800)] 
Merge branch 'for-linus' of /home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (44 commits)
[ARM] 4822/1: RealView: Change the REALVIEW_MPCORE configuration option
[ARM] 4821/1: RealView: Remove the platform dependencies from localtimer.c
[ARM] 4820/1: RealView: Select the timer IRQ at run-time
[ARM] 4819/1: RealView: Fix entry-macro.S to work with multiple platforms
[ARM] 4818/1: RealView: Add core-tile detection
[ARM] 4817/1: RealView: Move the AMBA resource definitions to realview_eb.c
[ARM] 4816/1: RealView: Move the platform-specific definitions into board-eb.h
[ARM] 4815/1: RealView: Add clockevents suport for the local timers
[ARM] 4814/1: RealView: Add broadcasting clockevents support for ARM11MPCore
[ARM] 4813/1: Add SMP helper functions for clockevents support
[ARM] 4812/1: RealView: clockevents support for the RealView platforms
[ARM] 4811/1: RealView: clocksource support for the RealView platforms
[ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags
[ARM] 4798/1: pcm027: fix missing header file
[ARM] 4803/1: pxa: fix building issue of poodle.c caused by patch 4737/1
[ARM] 4801/1: pxa: fix building issues of missing pxa2xx-regs.h
[ARM] pxa: introduce sysdev for pxa3xx static memory controller
[ARM] pxa: add preliminary suspend/resume code for pxa3xx
[ARM] pxa: introduce sysdev for GPIO register saving/restoring
[ARM] pxa: introduce sysdev for IRQ register saving/restoring
...
Linus Torvalds [Mon, 4 Feb 2008 20:14:55 +0000 (12:14 -0800)]
Merge branch 'slub-linus' of git://git./linux/kernel/git/christoph/vm
* 'slub-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm:
Explain kmem_cache_cpu fields
SLUB: Do not upset lockdep
SLUB: Fix coding style violations
Add parameter to add_partial to avoid having two functions
SLUB: rename defrag to remote_node_defrag_ratio
Move count_partial before kmem_cache_shrink
SLUB: Fix sysfs refcounting
slub: fix shadowed variable sparse warnings
Christoph Lameter [Tue, 8 Jan 2008 07:20:31 +0000 (23:20 -0800)] 
Explain kmem_cache_cpu fields
Add some comments explaining the fields of the kmem_cache_cpu structure.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
projects / linux-2.6 / log
