This patch (as1317) fixes a bug in the PM core. When a device is
resumed following a system sleep, the core decrements the device's
runtime PM usage counter but doesn't issue an idle notification if the
counter reaches 0. This could prevent an otherwise unused device from
being runtime-suspended again after the system sleep.
The fix is to call pm_runtime_put_sync() instead of
pm_runtime_put_noidle().
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
adev->dma_mode stores the transfer mode value not UDMA mode number
so the condition in cmd64x_set_dmamode() is always true and the higher
UDMA clock is always selected. This can potentially result in data
corruption when UDMA33 device is used, when 40-wire cable is used or
when the error recovery code decides to lower the device speed down.
The issue was introduced in the commit 6a40da0 ("libata cmd64x: whack
into a shape that looks like the documentation") which goes back to
kernel 2.6.20.
Cc: stable@kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This reverts commit d43744390e, because
it breaks the boot on several machines (mostly sparc64, at present).
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
sata_mv: remove pointless NULL test
pata_hpt3x2n: fix clock turnaround
libata: fix reporting of drained bytes when clearing DRQ
sata_mv: add power management support for the PCI controllers.
sata_mv: store the board_idx into the host private data
pata_octeon_cf: use resource_size(), to fix resource sizing bug
libata: use the WRITE_SAME_16 define
sata_mv: move the PCI bar description initialization code
sata_mv: add power management support for the platform driver
sata_mv: support clkdev framework
sata_mv: increase PIO IORDY timeout
Fixed crazy mode-change in merge.
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] Use strim instead of strstrip to avoid false warnings.
[S390] qdio: add counter for input queue full condition
[S390] qdio: remove superfluous log entries and WARN_ONs.
[S390] ptrace: dont abuse PT_PTRACED
[S390] cio: fix channel path vary
[S390] drivers: Correct size given to memset
[S390] tape: Add pr_fmt() macro to all tape source files
[S390] rename NT_PRXSTATUS to NT_S390_HIGHREGS
[S390] tty: PTR_ERR return of wrong pointer in fs3270_open()
[S390] s390: PTR_ERR return of wrong pointer in fallback_init_cip()
[S390] dasd: PTR_ERR return of wrong pointer in
[S390] dasd: move dasd-diag kmsg to dasd
[S390] cio: fix drvdata usage for the console subchannel
[S390] wire up sys_recvmmsg
This patch updates the per rx/tx queue stats.
To update the per rx queue stats a new structure has been
introduced rx_q_stats.
The per tx queue stats are updated via the netdev_queue
structure itself.
Note that we update only the tx_packtes, tx_bytes, rx_packets,
rx_bytes and rx_dropped stats on a per queue basis.
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We need to enable filer whenever we need to use multiple RX
queues. Also, need to program RIR0 register with the required
distribution we require, if using RX filer hashing support for
packet distribution to multiple queues.
Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When running the following script on an active bnx2 interface:
while(true); do ifconfig ethX mtu 9000; ifconfig ethX mtu 1500; done
A timeout error appears and dumps the following stack:
NETDEV WATCHDOG: eth4 (bnx2): transmit queue 0 timed out
------------[ cut here ]------------
Badness at net/sched/sch_generic.c:261
<snip>
This patch just fixes the way that ->trans_start is refreshed.
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
platform_get_irq returns -ENXIO on failure, so !irq was probably
always true. Better use (int)irq <= 0. Note that a return value of
zero is still handled as error even though this could mean irq0.
This is a followup to 305b3228f9 that
changed the return value of platform_get_irq from 0 to -ENXIO on error.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The _ONSTACK variant should be used for on-stack completion,
otherwise it will break lockdep.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Acked-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
If bnx2 schedules a reset via the reset_task, e.g., due to a TX
timeout, it's possible for the NIC to be disabled with packets
pending for transmit. In this case, napi_disable will loop forever,
eventually crashing the kernel. This patch moves the disable of
the device to after the napi_disable call.
Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There was a typo in "if condition" checking for validity of MDIO
bus frequency passed as part of platform data. Bitwise AND was
being used instead of a Logical AND.
Tested on: DM6467 EVM
Signed-off-by: Nageswari Srinivasan <nageswari@ti.com>
Acked-by: Anant Gole <anantgole@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alan Stern noticed that e100 caused slab corruption.
commit 98468efddb changed
the allocation of cbs to use dma pools that don't return zeroed memory,
especially the cb->status field used to track which cb to clean, causing
(the visible) double freeing of skbs and a wrong free cbs count.
Now the cbs are explicitly zeroed at allocation time.
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Roger Oksanen <roger.oksanen@cs.helsinki.fi>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If not signed read errors are ignored.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Do not override the customizable LED configuration set in the EEPROM.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Netxen driver is doing this bogus thing to create a control file.
This fails if device doesn't exist, and overall is a bad way to do
the module parameter. Rather than fix borked code, just rewrite.
Just using a writeable module parameter of 0/1 is the correct way
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Update to the new cs5535_mfgpt* API. The geode-specific wording should
eventually be dropped from this driver...
Signed-off-by: Andres Salomon <dilinger@collabora.co.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a counter to the qdio performance statistics that indicates that no
free buffers were left in the input queue. If the counter gets increased
it means that the qdio adapter filled all available buffers and possibly
had more buffers ready but could not transmit them.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* Don't write debug feature log entries for sl, slsb and sbal since these
elements can be located from the qdio_q pointer which is also logged.
* Convert WARN_ON for wrong alignment of sbal to BUG_ON.
* Remove WARN_ON's for wrong alignment of q / qib / slib since these
alignments should be guaranteed by kmem_cache_alloc alignment /
struct aligned attribute / __get_free_page.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Channel path vary is currently broken: channel paths which are varied
offline are still used by Linux. The reason for this is that:
* the path mask indicating which paths of an I/O device can be used
is reset by each internal I/O request
* the logic that checks if a path group is already in its designated
target state incorrectly interprets the result "is correctly set"
as "is correctly set and available"
Fix this by resetting the path mask only for internal I/O requests
which affect the path mask and by correcting the pgid check logic.
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Memset should be given the size of the structure, not the size of the pointer.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
type T;
T *x;
expression E;
@@
memset(x, E, sizeof(
+ *
x))
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Without defining the pr_fmt() macro, the "tape: " prefix will not be
printed when using the pr_xxx printk macros. This patch adds the
missing definitions.
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The DIAG discipline does not have a own driver name. It shows up as
dasd-eckd or dasd-fba. So messages for dasd-diag are moved to the
generic dasd part.
Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Using dev_set_drvdata prior to device_register will force the driver core
to kmalloc its private data. Since we use this for the console subchannel
lets set the drvdata before taking the subchannels spinlock.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Memory balloon drivers can allocate a large amount of memory which is not
movable but could be freed to accomodate memory hotplug remove.
Prior to calling the memory hotplug notifier chain the memory in the
pageblock is isolated. Currently, if the migrate type is not
MIGRATE_MOVABLE the isolation will not proceed, causing the memory removal
for that page range to fail.
Rather than failing pageblock isolation if the migrateteype is not
MIGRATE_MOVABLE, this patch checks if all of the pages in the pageblock,
and not on the LRU, are owned by a registered balloon driver (or other
entity) using a notifier chain. If all of the non-movable pages are owned
by a balloon, they can be freed later through the memory notifier chain
and the range can still be isolated in set_migratetype_isolate().
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Brian King <brking@linux.vnet.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Gerald Schaefer <geralds@linux.vnet.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
drm_ioctl is called with the Big Kernel Lock held,
which shows up very high in statistics on vfs_ioctl.
Moving the lock into the drm_ioctl function itself
makes sure we blame the right subsystem and it gets
us one step closer to eliminating the locked version
of fops->ioctl.
Since drm_ioctl does not require the lock itself,
we only need to hold it while calling the specific
handler. The 32 bit conversion handlers do not
interact with any other code, so they don't need
the BKL here either and can just call drm_ioctl.
As a bonus, this cleans up all the other users
of drm_ioctl which now no longer have to find
the inode or call lock_kernel.
[airlied: squashed the non-driver bits
of the second patch in here, this provides
the flag for drivers to use to select unlocked
ioctls - but doesn't modify any drivers].
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.sourceforge.net
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
* 'cpumask-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
cpumask: rename tsk_cpumask to tsk_cpus_allowed
cpumask: don't recommend set_cpus_allowed hack in Documentation/cpu-hotplug.txt
cpumask: avoid dereferencing struct cpumask
cpumask: convert drivers/idle/i7300_idle.c to cpumask_var_t
cpumask: use modern cpumask style in drivers/scsi/fcoe/fcoe.c
cpumask: avoid deprecated function in mm/slab.c
cpumask: use cpu_online in kernel/perf_event.c
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
OMAP3: serial - fix bug introduced in
mfd: twl: fix twl4030 rename for remaining driver, board files
USB ehci: replace mach header with plat
omap3: Allow EHCI to be built on OMAP3
Commit f251177486
(PM: Add initcall_debug style timing for suspend/resume) introduced
basic timing instrumentation, needed for a scritps/bootgraph.pl
equivalent or humans, but it missed the fact that bus types and
device classes which haven't been switched to using struct dev_pm_ops
objects yet need special handling. As a result, the suspend/resume
timing information is only available for devices whose bus types or
device classes use struct dev_pm_ops objects, so the majority of
devices is not covered.
Fix this by adding basic suspend/resume timing instrumentation for
devices whose bus types and device classes still don't use struct
dev_pm_ops objects for power management. To reduce code duplication
move the timing code to helper functions.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (w83627hf) Fix for "No such device"
hwmon: (sht15) Off-by-one error in array index + incorrect constants
hwmon: Add driver for VIA CPU core temperature
hwmon: (smsc47m1) Enable device if needed
hwmon: (smsc47m1) Fail module loading on error
hwmon: (smsc47m1) Only request I/O ports we really use
hwmon: New driver for AMD Family 10h/11h CPUs
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (40 commits)
[SCSI] 3w-9xxx fix bug in sgl loading
[SCSI] fcoe, libfc: adds enable/disable for fcoe interface
[SCSI] libfc: reduce hold time on SCSI host lock
[SCSI] libfc: remote port gets stuck in restart state without really restarting
[SCSI] pm8001: misc code cleanup
[SCSI] pm8001: enable read HBA SAS address from VPD
[SCSI] pm8001: do not reset local sata as it will not be found if reset
[SCSI] pm8001: bit set pm8001_ha->flags
[SCSI] pm8001:fix potential NULL pointer dereference
[SCSI] pm8001: set SSC down-spreading only to get less errors on some 6G device.
[SCSI] pm8001: fix endian issues with SAS address
[SCSI] pm8001: enhance error handle for IO patch
[SCSI] pm8001: Fix for sata io circular lock dependency.
[SCSI] hpsa: add driver for HP Smart Array controllers.
[SCSI] cxgb3i: always use negative errno in case of error
[SCSI] bnx2i: minor code cleanup and update driver version
[SCSI] bnx2i: Task management ABORT TASK fixes
[SCSI] bnx2i: update CQ arming algorith for 5771x chipsets
[SCSI] bnx2i: Adjust sq_size module parametr to power of 2 only if a non-zero value is specified
[SCSI] bnx2i: Add 5771E device support to bnx2i driver
...
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (71 commits)
MIPS: Lasat: Fix botched changes to sysctl code.
RTC: rtc-cmos.c: Fix warning on MIPS
MIPS: Cleanup random differences beween lmo and Linus' kernel.
MIPS: No longer hardwire CONFIG_EMBEDDED to y
MIPS: Fix and enhance built-in kernel command line
MIPS: eXcite: Remove platform.
MIPS: Loongson: Cleanups of serial port support
MIPS: Lemote 2F: Suspend CS5536 MFGPT Timer
MIPS: Excite: move iodev_remove to .devexit.text
MIPS: Lasat: Convert to proc_fops / seq_file
MIPS: Cleanup signal code initialization
MIPS: Modularize COP2 handling
MIPS: Move EARLY_PRINTK to Kconfig.debug
MIPS: Yeeloong 2F: Cleanup reset logic using the new ec_write function
MIPS: Yeeloong 2F: Add LID open event as the wakeup event
MIPS: Yeeloong 2F: Add basic EC operations
MIPS: Move several variables from .bss to .init.data
MIPS: Tracing: Make function graph tracer work with -mmcount-ra-address
MIPS: Tracing: Reserve $12(t0) for mcount-ra-address of gcc 4.5
MIPS: Tracing: Make ftrace for MIPS work without -fno-omit-frame-pointer
...
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6:
spi: spi_txx9.c: use resource_size()
spi: spi_sh_sci.c: use resource_size()
spi: spi_mpc8xxx.c: use resource_size()
spi: spi_bfin5xx.c: use resource_size()
spi: atmel_spi.c: use resource_size()
spi: Add s3c64xx SPI Controller driver
atmel_spi: fix dma addr calculation for len > BUFFER_SIZE
spi_s3c24xx: add FIQ pseudo-DMA support
spi: controller driver for Designware SPI core
spidev: add proper section markers
spidev: use DECLARE_BITMAP instead of declaring the array
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
backlight: mbp_nvidia_bl - add two more MacBookPro variants
backlight: Pass device through notify callback in the pwm driver
backlight: PTR_ERR return of wrong pointer in cr_backlight_probe()
backlight: Constify struct backlight_ops
backlight/thinkpad-acpi: issue backlight class events
Fix up trivial conflicts in thinkpad-acpi support (backlight support
already merged earlier).
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
leds: leds-pwm: Set led_classdev max_brightness
leds: leds-lp3944.h - remove unneeded includes
leds: use default-on trigger for Cobalt Qube
leds: drivers/leds/leds-ss4200.c: fix return statement
leds: leds-pca9532.h- indent with tabs, not spaces
leds: Add LED class driver for regulator driven LEDs.
leds: leds-cobalt-qube.c: use resource_size()
leds: leds-cobalt-raq.c - use resource_size()
leds: Add driver for ADP5520/ADP5501 MFD PMICs
leds: Add driver for LT3593 controlled LEDs
leds-ss4200: Check pci_enable_device return
leds: leds-alix2c - take port address from MSR
leds: LED driver for Intel NAS SS4200 series (v5)
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
PCMCIA: fix pxa2xx_lubbock modular build error
[ARM] Update mach-types
[ARM] pxa: fix no reference of cpu_is_pxa25x() in devices.c
[ARM] pxa/cm-x300: add PWM backlight support
revert "[ARM] pxa/cm-x300: add PWM backlight support"
ARM: use flush_kernel_dcache_area() for dmabounce
ARM: add size argument to __cpuc_flush_dcache_page
ARM: 5848/1: kill flush_ioremap_region()
ARM: cache-l2x0: make better use of background cache handling
ARM: cache-l2x0: avoid taking spinlock for every iteration
[ARM] Kirkwood: Add LaCie Network Space v2 support
ARM: dove: fix the mm mmu flags of the pj4 procinfo
RTC core won't allow wakeup alarms to be set if RTC devices' parent (i.e.
i2c_client or spi_device) isn't wakeup capable.
For I2C devices there is I2C_CLIENT_WAKE flag exists that we can pass via
board info, and if set, I2C core will initialize wakeup capability. For
SPI devices there is no such flag at all.
I believe that it's not platform code responsibility to allow or disallow
wakeups, instead, drivers themselves should set the capability if a device
can trigger wakeups.
That's what drivers/base/power/sysfs.c says:
* It is the responsibility of device drivers to enable (or disable)
* wakeup signaling as part of changing device power states, respecting
* the policy choices provided through the driver model.
I2C and SPI RTC devices send wakeup events via interrupt lines, so we
should set the wakeup capability if IRQ is routed.
Ideally we should also check irq for wakeup capability before setting
device's capability, i.e.
if (can_irq_wake(irq))
device_set_wakeup_capable(&client->dev, 1);
But there is no can_irq_wake() call exist, and it is not that trivial to
implement it for all interrupts controllers and complex/cascaded setups.
drivers/base/power/sysfs.c also covers these cases:
* Devices may not be able to generate wakeup events from all power
* states. Also, the events may be ignored in some configurations;
* for example, they might need help from other devices that aren't
* active
So there is no guarantee that wakeup will actually work, and so I think
there is no point in being pedantic wrt checking IRQ wakeup capability.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add support for the Secure Digital Host Controller Interface found on the
"Hollywood" chipset of the Nintendo Wii video game console.
Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch breaks down sdhci-of into a core portion and a eSDHC portion,
clearing the path to easily support additional hardware using the same OF
driver.
Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch renames sdhci-of.c to sdhci-of-core.c before reorganizing the
driver to support additional hardware.
The driver is still built as sdhci-of despite the rename of the file. No
functional change.
Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Daniel Drake noticed a crash in the error path of mmc_attach_sdio(). This
bug is discussed at http://dev.laptop.org/ticket/9707.
BUG: unable to handle kernel paging request at 6b6b6c57
IP: [<b066d6e2>] sdio_remove_func+0x9/0x27
Call Trace:
[<b066cfb4>] ? mmc_sdio_remove+0x34/0x65
[<b066d1fc>] ? mmc_attach_sdio+0x217/0x240
[<b066a22f>] ? mmc_rescan+0x1a2/0x20f
[<b042e9a0>] ? worker_thread+0x156/0x1e
We need to accurately track how many SDIO functions have been initialised
(and keep card->sdio_funcs in sync) so that we don't try to remove more
functions than we initialised if we hit the error path in
mmc_attach_sdio().
Without this patch if we hit the error path in mmc_attach_sdio() we run
the risk of deferencing invalid memory in sdio_remove_func(), leading to a
crash.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Cc: Daniel Drake <dsd@laptop.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
sdio_remove_func() needs to be more careful about reference counting. It
can be called in error paths where sdio_add_func() has never been called
e.g. mmc_attach_sdio error path --> mmc_sdio_remove --> sdio_remove_func
Signed-off-by: Daniel Drake <dsd@laptop.org>
Reviewed-by: Matt Fleming <matt@console-pimps.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
sizeof(viafb_gamma_table) is just the size of the pointer. This is changed
to the size used when calling kmalloc to initialize the pointer.
A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression *x;
expression f;
type T;
@@
*f(...,(T)x,...)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It doesn't make much sense to have CS5535_MFGPT_DEFAULT_IRQ show up in
configs that cannot have CS5535_MFGPT.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Andres Salomon <dilinger@collabora.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The device must be marked busy as it receives data.
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Tested-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: (27 commits)
regulator: wm831x_reg_read() failure unnoticed in wm831x_aldo_get_mode()
twl-regulator: Fix reg_disable functionality for 4030 and 6030
twl-regulator: Add turnon delay to reg_enable
twl-regulator: Restore REMAP configuration in regulator probe
twl-regulator: Add turnon-delay and REMAP config to twlreg_info struct
twl-regulator: Define critical regulators as always_on
twl-regulator: Add all twl4030 regulators to twlreg_info
regulator: mc13783-regulator: correct the probing time.
regulator: Fix unbalanced disables/enables in regulator_bulk_{enable,disable} error path
regulator: core.c: Small coding style cleanup (indentation fixup)
drivers/regulator: use PTR_ERR to get error code
regulator: consumer.h - fix build when consumer.h is #included first.
regulator/mc13783: various cleanups
regulator/mc13783: rename source file to match other drivers
Fix some AB3100 regulator issues
regulator: keep index within bounds in da9034_get_ldo12_voltage()
regulator: Ensure val is initialised in 88pm8607 choose_voltage()
regulator: Remove duplicate consts from ab3100
regulator: Handle regulators without suspend mode configuration
regulator: Factor out regulator name pretty printing
...
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Each SPI controller has exactly one CS line and as such doesn't
provide for multi-cs. We implement a workaround to support
multi-cs by _not_ configuring the mux'ed CS pin for each SPI
controller. The CS mechanism is assumed to be fully machine
specific - the driver doesn't even assume some GPIO pin is used
to control the CS.
The driver selects between DMA and POLLING mode depending upon
the xfer size - DMA mode for xfers bigger than FIFO size, POLLING
mode otherwise.
The driver has been designed to be capable of running SoCs since
s3c64xx and till date, for that reason some of the register fields
have been passed via, SoC specific, platform data.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
If len > BUFFER_LEN and !xfer->rx_buf we end up calculating the tx buffer
address as
*tx_dma = xfer->tx_dma + xfer->len - BUFFER_SIZE;
which is constant; i.e. we just send the last BUFFER_SIZE data over again
until we've reached the right number of bytes.
This patch gets around this by using the /requested/ length when
calculating addresses.
Note there's no way len != *plen when we calculate the rx buffer address
but conceptually we should be using *plen and I don't want someone to come
through later, see the calculations for rx and tx are different and "clean
up" back to what we had.
Signed-off-by: Ben Nizette <bn@niasdigital.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Add pseudo-DMA by FIQ to the S3C24XX SPI driver. This allows the driver
to get DMA-like performance where there are either no free DMA channels or
when doing transfers that required both TX and RX data paths.
Since this patch requires the addition of an assembly file to hold the FIQ
code, we rename the module (instead of adding a rename of the .c file to
this patch). We expect most users are loading this via udev and thus
there should be no change to the userland configuration.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Driver for the Designware SPI core, it supports multipul interfaces like
PCI/APB etc. User can use "dw_apb_ssi_db.pdf" from Synopsys as HW
datasheet.
[randy.dunlap@oracle.com: fix build]
[akpm@linux-foundation.org: build fix]
Signed-off-by: Feng Tang <feng.tang@intel.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
The driver already uses __devexit_p() in the structure, but looks like
actual __dev{init,exit} markings were forgotten.
The spidev_spi driver also needs renaming to include a "_driver" suffix to
avoid section mismatch warnings.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* 'for-33' of git://repo.or.cz/linux-kbuild: (29 commits)
net: fix for utsrelease.h moving to generated
gen_init_cpio: fixed fwrite warning
kbuild: fix make clean after mismerge
kbuild: generate modules.builtin
genksyms: properly consider EXPORT_UNUSED_SYMBOL{,_GPL}()
score: add asm/asm-offsets.h wrapper
unifdef: update to upstream revision 1.190
kbuild: specify absolute paths for cscope
kbuild: create include/generated in silentoldconfig
scripts/package: deb-pkg: use fakeroot if available
scripts/package: add KBUILD_PKG_ROOTCMD variable
scripts/package: tar-pkg: use tar --owner=root
Kbuild: clean up marker
net: add net_tstamp.h to headers_install
kbuild: move utsrelease.h to include/generated
kbuild: move autoconf.h to include/generated
drop explicit include of autoconf.h
kbuild: move compile.h to include/generated
kbuild: drop include/asm
kbuild: do not check for include/asm-$ARCH
...
Fixed non-conflicting clean merge of modpost.c as per comments from
Stephen Rothwell (modpost.c had grown an include of linux/autoconf.h
that needed to be changed to generated/autoconf.h)
This reverts commit 8546e3ce6e, as it's a
partial duplicate of commit 2f390380ca
("fbdev: add palette register check to several drivers").
The former went in first through the m68k tree, the latter through Andrew
Morton.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This adds the MacBookPro 5,3 and 5,4 to the DMI tables.
Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Add the device to the notify callback's arguments in the PWM backlight
driver. This brings the notify callback into line with the other
callbacks defined by this driver.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Currently the driver leds-pwm doesn't set max_brightness for the led device
although it's platform data proides a maximum brightness. Instead it stores its
own private driver struct. The max_brightness defaults to 255 for led device if
it has not been set.
As a result any leds-pwm device with a different maximum brightness will show
incorrect behavior, as it is posible to either set a longer then period duty
time or not be able to switch the led to full brightness.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This patch changes the default trigger from "ide-disk"
to "default-on". Users updating from kernels not having this
LED driver will prefer having the same LED behavior as they
used to.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
drivers/leds/leds-ss4200.c: In function 'ich7_lpc_probe':
drivers/leds/leds-ss4200.c:353: warning: 'return' with no value, in function returning non-void
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This driver provides an interface for controlling LEDs (or vibrators)
connected to PMICs for which there is a regulator framework driver.
This driver can be used, for instance, to control vibrator on all Motorola EZX
phones using the pcap-regulator driver services.
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Use resource_size() for ioremap.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Use resource_size() for ioremap.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
ret should be signed to notice a failure in wm831x_reg_read().
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This change makes sure all regulator group assignments are cleared on
disable call
Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This change implements a basic turnon delay in the regulator enable function
to make it less probable that reg_enable returns before the regulator
output is at target level
Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This change ensures the regulator REMAP register configuration is in a known
state so state transitions will function as intended regardless of
possible bootloader effects on it
Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This change includes regulator turnon delay values and the REMAP reset
configuration to the twlreg_info struct, since they are basic attributes
of every TWL regulator
Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Defines VIO, VDD1, VDD2, VPLL1 and VINT* regulators as always_on by default
since they are critical to TWL and its master's functionality and should
be on in all cases where RegFW is used
Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Define all twl4030 regulators in the twlreg_info table, along with
appropriate VSEL tables for adjustable regulators
Signed-off-by: Juha Keski-Saari <ext-juha.1.keski-saari@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
When the mc13783-regulator driver is built in kernel, probing it during
the regulator subsystem initialisation result in a fault.
That is because regulator subsystem is planned to be initialised very early
in the boot process, before the mfd subsystem initialisation.
The mc12783-regulator probing process need to access to the mc13783-core
functionality to read/write mc13783 registers and so must be called after
the mc13783-core driver initialisation.
The way to do this is to let the kernel probe the mc13783-regulator driver when
mc13783-core register his regulator subdevice.
Signed-off-by: Alberto Panizzo <maramaopercheseimorto@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Currently it is possible for regulator_bulk_{enable,disable} operations to
generate unbalanced regulator_{disable,enable} calls in its error path.
In case of an error only those regulators of the bulk operation which actually
had been enabled/disabled should get their original state restored.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
IS_ERR returns only 1 or 0. The callsite of setup_regulators expects a
negative integer in an error case. Thus, PTR_ERR has to be used to extract
it.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression E,E1;
@@
*E = IS_ERR(...)
... when != E = E1
*return E;
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
- define needed registers and bits in the driver
- properly namespace functions and structs
- fix locking as required by patch
"mfd/mc13783: near complete rewrite"
- use platform_data as provided by "mfd/mc13783: near complete rewrite"
instead of accessing struct mc13783
- struct mc13783_regulator_priv.desc is (and was) unused and so can go
away
- use cpp magic to initialize mc13783_regulators
- bring MODULE_LICENSE in sync with actual copyright
- minor style fixes
This allows not including mc13783-private.h which I intend to remove
soon.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Mark Brown <broonie@opensoruce.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
One annoying thing about the old name was that the module was just
called mc13783 which caused wrong expectations (at least for me).
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Mark Brown <broonie@opensoruce.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This patch will remove surplus register writes on shut down of
LDO D (this magic was not needed), remove an unnecessary (!) error
check and really unregister the regulators when the module is
unloaded.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
If selector equals ARRAY_SIZE(da9034_ldo12_data), that is one too
large already.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
If we fall through it means that we hit an unknown regulator/chip
combination so set -ENOENT as an explicit flag (the return code
is only used internally).
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
'static const int const' means the same thing as 'static const int'
and sparse complains about this.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Since some regulators in the system may not support suspend mode
configuration we need to allow some regulators to have a missing
suspend mode configuration. Do this by requiring that disabled
regulators are explicitly flagged and then skip over regulators
that have no state specified.
Try to avoid surprises by warning the if we could set the state
but no configuration is provided. This also ensures that an all
zeros configuration generates a warning rather than silently
disabling the regulator.
Reported-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Some of the regulator API functions have code to allow the machine
constraints to override the device supplied name for the regulator
in the constraints in order to help tie logging to supplies on the
board and disambiguate when there is more than one regulator chip
in the system. Factor this code out into a new rdev_get_name()
function and use it throughout the regulator API so that we always
use the same name.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
When voltage or current constraints are either missing or specify
a range display the actual setting along with the constraints if
we can. This can aid debugging of configuration problems.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
It makes sense to do all the voltage configuration in the one split
out function.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This allows constraints to take effect on regulators that support
voltage setting but for which the board does not specify a voltage
range (for example, because it is fixed correctly at system startup).
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
If we're going to log an error we may as well log what the error
code that we're failing on is.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Hi Liam,
Since Samuel merged a new version of mfd 88pm8607 driver, I format a
new patch on regulator 88pm8607. I paste the new patch in mail. Please
help to review again. And I also attach the mfd driver in mail.
From: Haojian Zhuang <haojian.zhuang@marvell.com>
Date: Thu, 8 Oct 2009 09:36:53 -0400
Subject: [PATCH] regulator: Add 88PM8607 PMIC driver
This patch adds regulator drivers for Marvell 88PM8607 PMIC.
This controller contains 3 DVC and 14 LDO regulators. This controller
uses I2C interface.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
The BuckWise DC-DC convertors in WM831x devices support switching to
a second output voltage using the logic level on one of the device
pins. This is intended to allow rapid voltage switching for uses like
cpufreq, replacing the I2C or SPI write used to configure the voltage
of the regulator with a much faster GPIO status change.
This is implemented by keeping the DVS voltage configured as the
maximum voltage permitted for the regulator. If a request is made
for the maximum voltage then the GPIO is used to switch to the DVS
voltage, otherwise the normal ON voltage is updated and used. This
follows the idiom used by most cpufreq drivers, which drop the
minimum voltage as the core frequency is dropped but use a constant
maximum - raising the voltage should normally be fast, but lowering
it may be slower.
Configuration of the DVS MFP on the device should be done externally,
for example via OTP.
Support is present in the hardware for monitoring the status of the
transition using a second GPIO. This is not currently implemented
but platform data is provided for it - the driver currently assumes
that the device will be configured to transition immediately - but
platform data is provided to reduce merge issues once it is.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Tested with a MX25-based custom board.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Remove !ap test, where ap is guaranteed not-NULL. Found by way of automated
bug report from Alexander Strakh via "Linux Device Drivers Verification
Project (Svace Detector)"
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The clock turnaround code still doesn't work for several reasons:
- 'USE_DPLL' flag in 'ap->host->private_data' is never initialized
or updated, so the driver can only set the chip to the DPLL clock
mode, not the PCI mode;
- the driver doesn't serialize access to the channels depending on
the current clock mode like the vendor drivers, so the clock
turnaround is only executed "optionally", not always as it should be;
- the wrong ports are written to when hpt3x2n_set_clock() is called
for the secondary channel;
- hpt3x2n_set_clock() can inadvertently enable the disabled channels
when resetting the channel state machines.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
When we drain data from a device to clear DRQ during error recovery,
the number of bytes reported as drained is too low by a factor of 2
because the count is actually reporting the number of words drained,
not bytes. Fix this.
Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
It appears the size for cs1 is calculated using the wrong resource.
Use the function resource_size to get the correct value.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Now that the scsi tree has hit mainline we can use the newly added WRITE_SAME_16
define.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The mv_init_host will be used to initialize the host hw on resume.
The PCI bar description need to be initialized only once when the
device probed.
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The old value (0xbc) in cycles of the IORDY timeout is suitable for
devices with core clock of 166 MHz, but some SoC controllers have
faster core clocks. The new value will make the IORDY timeout large
enough also for all SoC devices.
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Some models are equipped with an "AVMode" function key that sends
sony-laptop: Unknown event: 0x100 0xa1
sony-laptop: Unknown event: 0x100 0x21
for press and release respectively.
Cc: "Matthew W. S. Bell" <matthew@bells23.org.uk>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
The platform has never been fully merged
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Thomas Koeller <thomas.koeller@baslerweb.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
The octeon-ethernet driver shares an mdio bus with the octeon-mgmt
driver. Here we convert the octeon-ethernet driver to use the PHY
Abstraction Layer.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The Octeon MGMT Ethernet ports are present in some members of the
Octeon SOC family (cn52XX and cn56XX have them).
The mdio bus connected to the MGMT PHYs is shared with the main
octeon-ethernet driver, we force it to be loaded first by calling
octeon_mdiobus_force_mod_depencency. The platform devices for the
MGMT Ethernet ports are added in
arch/mips/cavium-octeon/octeon-platform.c, and the register
definitions for the ports live in arch/mips/include/asm/octeon/ along
with their ilk.
Although it currently is the only driver in drivers/net/octeon, the
directory was created looking forward to the day that octeon-ethernet
will move there from its current home in drivers/staging.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The Octeon SOC has two types of Ethernet ports, each type with its own
driver. However, the PHYs for all the ports are controlled by a
common MDIO bus. Because the mdio driver is not associated with a
particular driver, but is instead a system level resource, we create s
stand-alone driver for it.
As for the driver, we put the register definitions in
arch/mips/include/asm/octeon where most of the other Octeon register
definitions live. This is a platform driver with the platform device
for "mdio-octeon" being registered in the platform startup code.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: "James E.J. Bottomley" <James.Bottomley@suse.de>
Cc: Robert Love <robert.w.love@intel.com>
Cc: Chris Leech <christopher.leech@intel.com>
Cc: linux-scsi@vger.kernel.org
* 'drm-vmware-staging' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/vmwgfx: Add DRM driver for VMware Virtual GPU
drm/vmwgfx: Add svga headers for vmwgfx driver
drm/ttm: Add more driver type enums
Recent drivers/mfd/twl4030* renames to twl broke compile for
various boards as the series was missing a patch to change
the board-*.c files.
This patch renames include twl4030.h to include twl.h
and also renames twl4030_i2c_ routines.
Signed-off-by: Balaji T K <balajitk@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Reviewed-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Replace the mach/usb.h with plat/usb.h
Cc: linux-usb-devel@lists.sourceforge.net
Signed-off-by: Thomas Weber <weber@corscience.de>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The commit b72656dbc4 introduced
a bug leading to the w83627hf_find function no longer finding
any chips.
Signed-off-by: Christian Schulte <cs@schulte.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Fix an off-by-one error in array index + incorrect constants.
Signed-off-by: Christoph Walser <walser@tik.ee.ethz.ch>
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This is a driver for the on-die digital temperature sensor of
VIA's recent CPU models.
[JD: Misc clean-ups.]
Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Cc: Juerg Haefliger <juergh@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Adam Nielsen <a.nielsen@shikadi.net>
If the address is set but the device isn't enabled, attempt to enable
it. If it won't work for any reason (resource conflict, no function
enabled) the initial state is restored. The initial state is also
restored on module unloading.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Sean Fidler <fidlersean@gmail.com>
If an error occurs during probing, there's no point in keeping the
module in memory. Better fail the module loading early to make the
problem more visible.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Sean Fidler <fidlersean@gmail.com>
The I/O area of the SMSC LPC47M1xx chips which we use, gives access to
a lot of registers, some of which are related to fan speed monitoring
and control, but many are not. At the moment, the smsc47m1 driver
requests the whole I/O port range. This could easily result in
resource conflicts with either ACPI or other drivers.
Request only the I/O ports we really use, to prevent such conflicts.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Sean Fidler <fidlersean@gmail.com>
This adds a driver for the internal temperature sensor of AMD Family 10h
and 11h CPUs.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
* 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6: (34 commits)
HWPOISON: Remove stray phrase in a comment
HWPOISON: Try to allocate migration page on the same node
HWPOISON: Don't do early filtering if filter is disabled
HWPOISON: Add a madvise() injector for soft page offlining
HWPOISON: Add soft page offline support
HWPOISON: Undefine short-hand macros after use to avoid namespace conflict
HWPOISON: Use new shake_page in memory_failure
HWPOISON: Use correct name for MADV_HWPOISON in documentation
HWPOISON: mention HWPoison in Kconfig entry
HWPOISON: Use get_user_page_fast in hwpoison madvise
HWPOISON: add an interface to switch off/on all the page filters
HWPOISON: add memory cgroup filter
memcg: add accessor to mem_cgroup.css
memcg: rename and export try_get_mem_cgroup_from_page()
HWPOISON: add page flags filter
mm: export stable page flags
HWPOISON: limit hwpoison injector to known page types
HWPOISON: add fs/device filters
HWPOISON: return 0 to indicate success reliably
HWPOISON: make semantics of IGNORED/DELAYED clear
...
Commit d0d26c33b6 broke the driver by
propagating a pointer to the platform_device where a pointer to the
generic device was expected, leading to a spectacular crash...
Signed-off-by: Marc Zyngier <maz@misterjones.org>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (38 commits)
direct I/O fallback sync simplification
ocfs: stop using do_sync_mapping_range
cleanup blockdev_direct_IO locking
make generic_acl slightly more generic
sanitize xattr handler prototypes
libfs: move EXPORT_SYMBOL for d_alloc_name
vfs: force reval of target when following LAST_BIND symlinks (try #7)
ima: limit imbalance msg
Untangling ima mess, part 3: kill dead code in ima
Untangling ima mess, part 2: deal with counters
Untangling ima mess, part 1: alloc_file()
O_TRUNC open shouldn't fail after file truncation
ima: call ima_inode_free ima_inode_free
IMA: clean up the IMA counts updating code
ima: only insert at inode creation time
ima: valid return code from ima_inode_alloc
fs: move get_empty_filp() deffinition to internal.h
Sanitize exec_permission_lite()
Kill cached_lookup() and real_lookup()
Kill path_lookup_open()
...
Trivial conflicts in fs/direct-io.c
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM: rwsem.h need not be included into main.c
PM: Remove unnecessary goto from device_resume_noirq()
PM: Add initcall_debug style timing for suspend/resume
PM: allow for usage_count > 0 in pm_runtime_get()
Due to the merge of processor_start() (declared with __cpuinit) into
processor_add(), a section mismatch warning appears:
WARNING: drivers/built-in.o(.text+0x4d59d): Section mismatch in reference
from the function acpi_processor_add() to the function
.cpuinit.text:acpi_processor_power_init()
...
This patch fixes the warning by declaring processor_add() as __cpuinit
and also declares acpi_processor_add_fs() as __cpuinit as it is only
used in acpi_processor_add().
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
v2->v1:
.improve debug info as suggedted by Bjorn,Kenji
.API is using uuid string as suggested by Alexey
Add an API to execute _OSC. A lot of devices can have this method, so add a
generic API.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (26 commits)
net: sh_eth alignment fix for sh7724 using NET_IP_ALIGN V2
ixgbe: allow tx of pre-formatted vlan tagged packets
ixgbe: Fix 82598 premature copper PHY link indicatation
ixgbe: Fix tx_restart_queue/non_eop_desc statistics counters
bcm63xx_enet: fix compilation failure after get_stats_count removal
packet: dont call sleeping functions while holding rcu_read_lock()
tcp: Revert per-route SACK/DSACK/TIMESTAMP changes.
ipvs: zero usvc and udest
netfilter: fix crashes in bridge netfilter caused by fragment jumps
ipv6: reassembly: use seperate reassembly queues for conntrack and local delivery
sky2: leave PCI config space writeable
sky2: print Optima chip name
x25: Update maintainer.
ipvs: fix synchronization on connection close
netfilter: xtables: document minimal required version
drivers/net/bonding/: : use pr_fmt
can: CAN_MCP251X should depend on HAS_DMA
drivers/net/usb: Correct code taking the size of a pointer
drivers/net/cpmac.c: Correct code taking the size of a pointer
drivers/net/sfc: Correct code taking the size of a pointer
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (22 commits)
Input: ALPS - add interleaved protocol support (Dell E6x00 series)
Input: keyboard - don't override beep with a bell
Input: altera_ps2 - fix test of unsigned in altera_ps2_probe()
Input: add mc13783 touchscreen driver
Input: ep93xx_keypad - update driver to new core support
Input: wacom - separate pen from express keys on Graphire
Input: wacom - add defines for data packet report IDs
Input: wacom - add support for new LCD tablets
Input: wacom - add defines for packet lengths of various devices
Input: wacom - ensure the device is initialized properly upon resume
Input: at32psif - do not sleep in atomic context
Input: i8042 - add Gigabyte M1022M to the noloop list
Input: i8042 - allow installing platform filters for incoming data
Input: i8042 - fix locking in interrupt routine
Input: ALPS - do not set REL_X/REL_Y capabilities on the touchpad
Input: document use of input_event() function
Input: sa1111ps2 - annotate probe() and remove() methods
Input: ambakmi - annotate probe() and remove() methods
Input: gscps2 - fix probe() and remove() annotations
Input: altera_ps2 - add annotations to probe and remove methods
...
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm/radeon/kms: fix r100->r500 CS checker for compressed textures. (v2)
drm/radeon/kms: allow for texture tiling
drm/radeon/kms: init pm on all chipsets
drm/radeon/kms: HDMI support for R600 KMS
drm/radeon/kms: make sure mc is initialized before mapping blit bo
drm/radeon/kms: Return to userspace on ERESTARTSYS
drm/radeon/gem: don't leak a gem object if reserve fails on get tiling (v2)
drm/radeon/kms: don't report allocate failure on ERESTARTSYS
drm/radeon/kms: Check if bo we got from ttm are radeon object or not
drm/radeon/kms: If no placement is supplied fallback to system
drm/ttm: Fix memory type manager debug information printing
drm/ttm: Fix printk format & compute bo->mem.size at bo initialization
drm/ttm: Fix potential ttm_mem_evict_first races.
drm/ttm: Delayed delete fixes.
drm/ttm: fix two bugs in new placement routines.
drm/ttm: fix incorrect logic in ttm_bo_io path
drm/nouveau: remove use of -ERESTART
nouveau: Fix endianness with new context program loader
drm/nouveau: fix build with CONFIG_AGP=n
drm/nouveau: fix ch7006 build
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (33 commits)
sh: Fix test of unsigned in se7722_irq_demux()
sh: mach-ecovec24: Add FSI sound support
sh: mach-ecovec24: Add mt9t112 camera support
sh: mach-ecovec24: Add tw9910 support
sh: MSIOF/mmc_spi platform data for the Ecovec24 board
sh: ms7724se: Add ak4642 support
sh: Fix up FPU build for SH5
sh: Remove old early serial console code V2
sh: sh5 scif pdata (sh5-101/sh5-103)
sh: sh4a scif pdata (sh7757/sh7763/sh7770/sh7780/sh7785/sh7786/x3)
sh: sh4a scif pdata (sh7343/sh7366/sh7722/sh7723/sh7724)
sh: sh4 scif pdata (sh7750/sh7760/sh4-202)
sh: sh3 scif pdata (sh7705/sh770x/sh7710/sh7720)
sh: sh2a scif pdata (sh7201/sh7203/sh7206/mxg)
sh: sh2 scif pdata (sh7616)
sh-sci: Extend sh-sci driver with early console V2
sh: Stub in P3 ioremap support for nommu parts.
sh: wire up vmallocinfo support in ioremap() implementations.
sh: Make the unaligned trap handler always obey notification levels.
sh: Couple kernel and user write page perm bits for CONFIG_X2TLB
...
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
ppc440spe-adma: adds updated ppc440spe adma driver
iop-adma.c: use resource_size()
dmaengine: clarify the meaning of the DMA_CTRL_ACK flag
sh: stylistic improvements for the DMA driver
dmaengine: fix dmatest to verify minimum transfer length and test buffer size
sh: DMA driver has to specify its alignment requirements
Add COH 901 318 DMA block driver v5
* git://git.infradead.org/mtd-2.6: (90 commits)
jffs2: Fix long-standing bug with symlink garbage collection.
mtd: OneNAND: Fix test of unsigned in onenand_otp_walk()
mtd: cfi_cmdset_0002, fix lock imbalance
Revert "mtd: move mxcnd_remove to .exit.text"
mtd: m25p80: add support for Macronix MX25L4005A
kmsg_dump: fix build for CONFIG_PRINTK=n
mtd: nandsim: add support for 4KiB pages
mtd: mtdoops: refactor as a kmsg_dumper
mtd: mtdoops: make record size configurable
mtd: mtdoops: limit the maximum mtd partition size
mtd: mtdoops: keep track of used/unused pages in an array
mtd: mtdoops: several minor cleanups
core: Add kernel message dumper to call on oopses and panics
mtd: add ARM pismo support
mtd: pxa3xx_nand: Fix PIO data transfer
mtd: nand: fix multi-chip suspend problem
mtd: add support for switching old SST chips into QRY mode
mtd: fix M29W800D dev_id and uaddr
mtd: don't use PF_MEMALLOC
mtd: Add bad block table overrides to Davinci NAND driver
...
Fixed up conflicts (mostly trivial) in
drivers/mtd/devices/m25p80.c
drivers/mtd/maps/pcmciamtd.c
drivers/mtd/nand/pxa3xx_nand.c
kernel/printk.c
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
parisc: Fixup last users of irq_chip->typename
parisc: convert /proc/pdc/{lcd,led} to seq_file
parisc: Convert BUG() to use unreachable()
parisc: Replace old style lock init in smp.c
parisc: use sort() instead of home-made implementation (v2)
parisc: add CALLER_ADDR{0-6} macros
parisc: remove unused IRQSTAT_SIRQ_PEND and IRQSTAT_SZ defines
parisc: remove duplicated #include
* git://git.infradead.org/iommu-2.6:
implement early_io{re,un}map for ia64
Revert "Intel IOMMU: Avoid memory allocation failures in dma map api calls"
intel-iommu: ignore page table validation in pass through mode
intel-iommu: Fix oops with intel_iommu=igfx_off
intel-iommu: Check for an RMRR which ends before it starts.
intel-iommu: Apply BIOS sanity checks for interrupt remapping too.
intel-iommu: Detect DMAR in hyperspace at probe time.
dmar: Fix build failure without NUMA, warn on bogus RHSA tables and don't abort
iommu: Allocate dma-remapping structures using numa locality info
intr_remap: Allocate intr-remapping table using numa locality info
dmar: Allocate queued invalidation structure using numa locality info
dmar: support for parsing Remapping Hardware Static Affinity structure
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (116 commits)
V4L/DVB (13698): pms: replace asm/uaccess.h to linux/uaccess.h
V4L/DVB (13690): radio/si470x: #include <sched.h>
V4L/DVB (13688): au8522: modify the attributes of local filter coefficients
V4L/DVB (13687): cx231xx: use NULL when pointer is needed
V4L/DVB: Davinci VPFE Capture: remove unused #include <linux/version.h>
V4L/DVB (13685): Correct code taking the size of a pointer
V4L/DVB (13684): Fix some cut-and-paste noise in dib0090.h
V4L/DVB (13683): sanio-ms: clean up init, exit and id_table
V4L/DVB (13682): dib8000: make some constant static
V4L/DVB: lgs8gxx: Use shifts rather than multiply/divide when possible
V4L/DVB (13680b): DocBook/media: create links for included sources
V4L/DVB (13680a): DocBook/media: copy images after building HTML
V4L/DVB (13678): Add support for yet another DvbWorld, TeVii and Prof USB devices
V4L/DVB (13676): configurable IRQ mode on NetUP Dual DVB-S2 CI; IRQ from CAM processing (CI interface works faster)
V4L/DVB (13674): stv090x: Add DiSEqC envelope mode
V4L/DVB (13673): lnbp21: Implement 22 kHz tone control
V4L/DVB (13671): sh_mobile_ceu_camera: Remove frame size page alignment
V4L/DVB (13670): soc-camera: Add mt9t112 camera driver
V4L/DVB (13669): tw9910: Add sync polarity support
V4L/DVB (13668): tw9910: remove cropping
...
Any of the platform API functions can fail; driver should be prepared
to handle such failures. Also:
- changed to platform_driver_probe() since the device is created
right there with the driver;
- added __devexit annotation to remove method;
- fixed memory leak on module unload - named platform_device_del() is not
enough to free platform device, need platform_device_unregister().
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Len Brown <len.brown@intel.com>
Sysfs attribute group takes care of proper creation of a set of attributes
and implements proper error unwinding so the driver does not have to do it.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Len Brown <len.brown@intel.com>
Now depends on BACKLIGHT_CLASS_DEVICE.
Driver will return an error if it can't get actual backlight value
Fix remapping of brightness keys when backlight is not controlled by ACPI.
Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Len Brown <len.brown@intel.com>
There should be less code duplication with usage of gotos
Driver won't load if there's no hardware to control
Safer error handling at input driver allocation
Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Len Brown <len.brown@intel.com>
This driver serves backlight (including switching) and volume up/down
keys for MSI machines providing a specific wmi interface:
551A1F84-FBDD-4125-91DB-3EA8F44F1D45
B6F3EEF2-3D2F-49DC-9DE3-85BCE18C62F2
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: Carlos Corbacho <carlos@strangeworlds.co.uk>
CC: Matthew Garrett <mjg59@srcf.ucam.org>
Tested-by: Matt Chen <machen@novell.com>
Reviewed-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Len Brown <len.brown@intel.com>
* don't reinvent the wheels, please - open_bdev_exclusive() is there
for purpose
* both open_by_devnum() and open_bdev_exclusive() return ERR_PTR(...)
upon error, not NULL
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This patch adds support for the ACPI events generated by the RFKill
switch on modern Toshiba laptops, and re-enables the Bluetooth USB
device when the switch is flipped back to the 'on' position.
The RFKill switch brute force pulls out the USB device when flipped to
'off', but it doesn't automatically re-enable it. Without this driver,
the Bluetooth is gone until after a reboot on my Portege R500.
Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Although reporting of benign GART TLB errors is disabled in
__mcheck_cpu_apply_quirks, those are still being logged, and, as a
result, trip up amd64_edac. Pull up reporting check so that machines
with loaded edac module bail out early and don't spit fragments into
dmesg.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
GRU Message queue instructions are used to deliver messages to other SSIs
within the numalink domain. In most cases, a single GRU mesq instruction
will deliver both the message AND an interrupt to notify the other SSI
that a messsage is present. In some cases, however, the interrupt must be
sent explicitly.
To improve resilency, the GRU driver should send these explicit interrupts
using the GRU to write the remote chipset register. Current code sends
the interrupt using a cpu instruction to write the chipset register.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update the version number of the GRU driver.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update the TLB dropin statistics kept for each GRU context. Count TLB
dropins separate from the misses - some misses do not result in a TLB
dropin. Some of the diagnostics need both counts.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix a race where an interrupt could be received for a GRU context that has
been deallocated.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add support for hugepages. Easier than I originally thought.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix a bug in the assignment of GRU contexts used for kernel functions. If
a sleep occurs on the wait for a semaphore, the thread could switch cpus
and allocate resources on the wrong blade.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a few new definitions for chipset MMR field names. This matches rev
0.7 of the hardware spec.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Simplify the code that checks for correct assignment of GRU contexts to
users.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove a stray local_irq_enable() in the GRU TLB dropin code.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use symbol names instead of numbers for error return values for the vtop
functions.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix a GRU driver bug converting a CBR address to the context that contains
the CBR. The conversion is rarely done so performance does not matter.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add anticipatory TLB dropins for GRU TLB misses that occur on BCOPY
instructions that copy large amounts of data.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Explicitly set GRU instructions to "ACTIVE". This eliminates the need for
barriers that would have been necessary to prevent reading the instruction
"status" field before the GRU had actually started the instruction.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update the GRU irq allocate/free functions to use the latest upstream
infrastructure.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix several bugs related to prefetch, ordering & speculation:
- GRU cch_allocate() instruction causes cacheable memory
to be created. Add a barriers to prevent speculation
from prefetching data before it exists.
- Add memory barriers before cache-flush instructions to ensure
that previously stored data is included in the line flushed to memory.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix bug caused by failure to allocate a GRU gts structure. The old code
failed to handle the case where the vma was invalid.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Improve existing driver self-tests. Add a new debugging test to the SGI
GRU driver for verifying the global GRU copy function.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a debug option to the SGI GRU driver for flushing GRU cache lines from
memory. In theory this is not needed but it is useful for debugging.
This has no use by end users.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Under some conditions, mmu_notifier_register() will fail to register a
mmu_notifier. Fix the GRU driver to correctly handle these failures.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Increase the maximum address supported by the SGI GRU driver to a full 64
bits. Note that GRU addresses are not always the same as socket virtual
addresses. Sockets may not necessarily support the full 64 bits.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Improve error messages for malfunctioning GRUs. Identify the type of
instruction that is failing.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix bug in module unload. Previous code was not correctly deleting the
files in /proc.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch builds on the infrastructure introduced in the patches that
allow user specification of GRU blades & chiplets for context allocation.
This patch simplifies the algorithms for migrating GRU contexts between
blades.
No new functionality is introduced.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alan Stern