Separate out ahci_do_softreset() which takes @pmp as its last
argument. This will be used to implement ahci_pmp_softreset().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Separate out ahci_exec_polled_cmd() from ahci_softreset(). This will
be used to implement ahci_pmp_read/write(). ahci_exec_polled_cmd()
performs reset_engine before returning if the command fails (times
out). This is to improve robustness.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Separate out stop_engine - CLO - start_engine sequence from
ahci_softreset() and ahci_clo() into ahci_reset_engine() and use it in
ahci_softreset() and ahci_post_internal_cmd(). The function will also
be used to prepare for and clean up after PMP register access
commands.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Use deadline instead of fixed timeout for 1st FIS for SRST to improve
robustness of SRST.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add @is_cmd to ata_tf_to_fis(). This controls bit 7 of the second
byte which tells the device whether this H2D FIS is for a command or
not. This cleans up ahci a bit and will be used by PMP.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_tf_read was setting HOB bit when lba48 command was submitted, but
was not clearing it before reading "normal" data. As it is only place
which sets HOB bit in control register, and register reads should not
be affected by other bits, let's just clear it when we are done with
reading upper bytes so non-48bit commands do not have to touch ctl
at all.
pata_scc suffered from same problem...
Signed-off-by: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch fixes some issues of the previous patch:
- Use mode_filter() hook to limit ATAPI UDMA mode
- "data loss" warning message
- handling of udma_mask
Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Commit df69c9c543 moved only prototype of
out of CONFIG_PM. Move function out as well. Box seems to boot fine.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Yay, the first one from Seagate. 3.ALC firmware is okay. This was
reported by Sam Freed on bugzilla bug 8759.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Sam Freed <sam@freed.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
pata_platform: Fix NULL pointer dereference
pata_platform currently dereferences a NULL pointer in pata_platform_probe()
if pdev->dev.platform_data is set to NULL. This breakage was most likely
introduced by commit 5f45bc5097.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
* trim trailing whitespace
* document some flags, registers, and register bits
* fix locking around EDMA on/off and configuration
* continue replacing "constant OP var" with "var OP constant"
* use new pci_try_set_mwi()
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Fix the unregistration order in the i.MX serial driver
Signed-off-by: Sreekrishnan Venkateswaran <krishhna@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
WARNING: drivers/built-in.o(.text+0x3fd54): Section mismatch: reference to .init.data: (between 'ether3_probe' and 'ether1_setmulticastlist')
WARNING: drivers/built-in.o(.text+0x40380): Section mismatch: reference to .init.data: (between 'ether1_probe' and 'ether1_interrupt')
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
In order for this driver to be shared across the iop architectures the
iop3xx and iop13xx header files are modified to present a common interface
for the iop_wdt driver.
Details:
* iop13xx supports disabling the timer while iop3xx does not. This requires
a few 'compatibility' definitions in include/asm-arm/hardware/iop3xx.h to
preclude adding #ifdef CONFIG_ARCH_IOP13XX blocks to the driver code.
* The heartbeat interval is derived from the internal bus clock rate, so this
this patch also exports the tick rate to the iop_wdt driver.
Cc: Curt Bruns <curt.e.bruns@intel.com>
Cc: Peter Milne <peter.milne@d-tacq.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The appletouch geyser3 devices found in the Intel Macs (and possibly
some later PPC ones?) send a constant stream of packets after the first
touch. This results in the kernel waking up around once every couple of
milliseconds to process them, making it almost impossible to spend any
significant amount of time in C3 state on a dynamic HZ kernel. Sending
the mode initialization code makes the device shut up until it's touched
again. This patch does so after receiving 10 packets with no interesting
content.
Signed-off-by: Soeren Sonnenburg <kernel@nn7.de>
Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
The "id" property in vdc-port nodes are not unique, they
are all zero. Therefore assign ID's using the parent's
"cfg-handle" property which will be unique.
Signed-off-by: David S. Miller <davem@davemloft.net>
and populate it with the common parts from PowerPC and Sparc[64].
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
This just moves the common stuff from the arch of_device.h files to
linux/of_device.h.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
This moves all the common parts for the Sparc, Sparc64 and PowerPC
of_device.c files into drivers/of/device.c.
Apart from the simple move, Sparc gains of_match_node() and a call to
of_node_put in of_release_dev(). PowerPC gains better recovery if
device_create_file() fails in of_device_register().
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
This consolidates the routines of_find_node_by_path, of_find_node_by_name,
of_find_node_by_type and of_find_compatible_device. Again, the comparison
of strings are done differently by Sparc and PowerPC and also these add
read_locks around the iterations.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
This adds a read_lock around the child/next accesses on Sparc.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
This requires creating dummy of_node_{get,put} routines for sparc and
sparc64. It also adds a read_lock around the parent accesses.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
The only change here is that a readlock is taken while the property list
is being traversed on Sparc where it was not taken previously.
Also, Sparc uses strcasecmp to compare property names while PowerPC
uses strcmp.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
The only difference here is that Sparc uses strncmp to match compatibility
names while PowerPC uses strncasecmp.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
This creates drivers/of/base.c (depending on CONFIG_OF) and puts
the first trivially common bits from the prom.c files into it.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: David S. Miller <davem@davemloft.net>
Both shwdt and rtc-sh are only supported on SH-3 and SH-4 at
the moment, don't allow them to break the SH-2 and SH-5 (sh64)
builds.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Slab destructors were no longer supported after Christoph's
c59def9f22 change. They've been
BUGs for both slab and slub, and slob never supported them
either.
This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This patch incorporates some updates. Updates include:
- Fix the problem that control transfer might fail
- Change from GFP_KERNEL to GFP_ATOMIC
- Clean up some coding style issue
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as940 renames hcd_data_lock in hcd.c to hcd_urb_list_lock,
which is more descriptive of the lock's job. It also introduces a
convenient inline routine for testing whether a particular USB device
is a root hub.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as939) moves a couple of routine in hcd.c around. The
purpose is to put all the general URB- and endpoint-related routines
(submit, unlink, giveback, and disable) together in one spot.
There are no functional changes.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This done in anticipation of removal of urb->status, which will make
that patch easier to review and apply in the future.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch incorporates some updates from the review of the
Renesas m66592-udc driver. Updates include:
- Fix some locking bugs; and add a few sparse annotations
- Don't #define __iomem !
- Lots of whitespace fixes (most of the patch by volume)
- Some #include file trimmage
- Other checkpatch.pl and sparse updates
- Alphabetized and slightly-more-informative Kconfig
- Don't use the ID which was assigned to the amd5536udc driver.
- Remove pointless suspend/resume methods updating obsolete field.
- Some section fixups
- Fix some leak bugs
- Fix byteswapping
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as938) adds an unusual_devs entry for the Nikon DSC D100.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Coverity scan found (CID: 1708) this in
drivers/usb/serial/io_ti.c::edge_shutdown() :
...
2797 for (i=0; i < serial->num_ports; ++i) {
2798 edge_port = usb_get_serial_port_data(serial->port[i]);
2799 edge_remove_sysfs_attrs(edge_port->port);
2800 if (edge_port) {
2801 edge_buf_free(edge_port->ep_out_buf);
2802 kfree(edge_port);
2803 }
2804 usb_set_serial_port_data(serial->port[i], NULL);
2805 }
...
It's complaining that we dereference 'edge_port' in line 2799 which
makes the test of that pointer against NULL in 2800 pointless, since if
edge_port was actually NULL we'd have crashed already before reaching
line 2800.
Reading the edge_open() function it seems to me that the pointer
returned by usb_get_serial_port_data(serial->port[i]) and stored in
'edge_port' can never actually be NULL here, so the test is entirely
superfluous (even if it could be NULL it would be pointless here,
ignoring the then possible crash in that case, since both
edge_buf_free() and kfree() can handle being passed NULL pointers.
This patch removes the pointless conditional (and also makes a few
tiny style corrections now that I was in the area anyway).
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Driver for the AMD5536 UDC, as found in the AMD Geode CS5536 (southbridge).
This is a high speed DMA-capable controller, which can also be used in
OTG configurations (which are not supported by this patch).
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as936) updates the kerneldoc for usb_unlink_urb. The
explanation of how endpoint queues are meant to work is now clearer
and in better agreement with reality.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It has recently been pointed out that short control transfers should
have a status stage, even if they generate an error because
URB_SHORT_NOT_OK was set. This patch (as935) changes uhci-hcd to
enable the status stage when this happens.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Coverity (1709, 1710, 1711, 1712, 1713) actually flagged these as
REVERSE_INULLs (NULL check performed after dereference). But looking at
the other drivers I can't see any similar tests and the USB core already
makes sure urb is non-null - so might as well get rid of the checks.
Signed-off-by: Florin Malita <fmalita@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as937) fixes a minor bug in the autosuspend usage-counting
code. Each hub's usage counter keeps track of the number of
unsuspended children. However the current driver increments the
counter after registering a new child, by which time the child may
already have been suspended and caused the counter to go negative.
The obvious solution is to increment the counter before registering
the child.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as934) adds a new readonly binary sysfs attribute file
called "descriptors" for each USB device. The attribute contains the
device descriptor followed by the raw descriptor entry (config plug
subsidiary descriptors) for the current configuration.
Having this information available in fixed-format binary makes life a
lot easier for user programs by avoiding the need to open, read, and
parse multiple sysfs text files.
The information in this attribute file is much like that in usbfs's
device file, but there are some significant differences:
The 2-byte fields in the device descriptor are left in
little-endian byte order, as they appear on the bus and
in the kernel.
Only one raw descriptor set is presented, that of the
current configuration.
Opening this file will not cause a suspended device to be
autoresumed.
The last item in particular should be a big selling point for libusb,
which currently forces all USB devices to be resumed as it scans the
device tree.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Dave Mielke <dave@mielke.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as931b), adapted from a patch by Olav Kongas, makes a small
set of conservative changes to the isp116x-hcd driver in preparation
for the removal of urb->status.
finish_request() is moved up in the source and is called
as soon as the URB is known to have completed, rather than
after all the active endpoints have been scanned.
The status of a completed URB is kept in a local variable
and copied to urb->status only when the URB is about to be
given back.
-EREMOTEIO error status for control transfers is set after
the status stage rather than when the short packet arrives.
Some unnecessary uses of urb->lock are removed.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Olav Kongas <ok@artecdesign.ee>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I found the first regresson in the rewritten ("all dynamic" and "no races")
driver. If application uses O_NONBLOCK, I return -EAGAIN despite the URB
being submitted successfuly. This causes the application to resubmit the
same data erroneously.
The fix is to pretend that the transfer has succeeded even if URB was
merely queued. It is the same behaviour as with the old version.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds new devices to the Sierra Wireless driver. This is being
resubmitted because the dependent patch (patch 01/02) needed to be
resubmitted.
Signed-off-by: Kevin Lloyd <linux@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch adds compatibility with Sierra Wireless' new TRU-Install
feature. Future devices that use this feature will not work unless this
patch has been applied.
Signed-off-by: Kevin Lloyd <linux@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The FTDI ELAN driver uses a semaphore as mutex. Use the mutex API
instead of the (binary) semaphore.
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The Adutux driver uses a semaphore as mutex. Use the mutex API
instead of the (binary) semaphore.
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The ELAN U132 adapter driver uses the semaphore u132_module_lock
as mutex. Use the mutex API instead of the (binary) semaphore.
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The USB gadget serial driver uses a semaphore as mutex. Use the
mutex API instead of the (binary) semaphore.
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Now that ide-floppy supports SG_IO we can add support for SCSI ioctls
(except deprecated SCSI_IOCTL_SEND_COMMAND and legacy CDROM_SEND_PACKET
ones - we can add them later iff really needed).
While at it remove handling of CDROMEJECT and CDROMCLOSETRAY ioctls from
generic_ide_ioctl():
- This prevents ide-{disk,tape,scsi} device drivers from obtaining
REQ_TYPE_BLOCK_PC type requests which are currently unsupported by
these drivers and which are potentially harmful (as reported by Andrew).
- There is no functionality loss since aforementioned ioctls will now be
handled by idefloppy_ioctl()->scsi_cmd_ioctl() (for devices using
ide-floppy driver) and by idecd_ioctl->cdrom_ioctl()->scsi_cmd_ioctl()
(for devices using ide-cd driver).
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Add ATA_PIO[0-6] defines to <linux/ata.h>.
* Add ->pio_mask field to ide_pci_device_t and ide_hwif_t.
* Add PIO masks to host drivers.
<linux/ata.h> change ACK-ed by Jeff Garzik <jeff@garzik.org>.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Add ->host_flags to ide_hwif_t to store ide_pci_device_t.host_flags,
assign it in setup-pci.c:ide_pci_setup_ports().
* Add IDE_HFLAG_PIO_NO_{BLACKLIST,DOWNGRADE} to ide_pci_device_t.host_flags
and teach ide_get_best_pio_mode() about them. Also remove needless
!drive->id check while at it (drive->id is always present).
* Convert amd74xx, via82cxxx and ide-timing.h to use ide_get_best_pio_mode()
and then remove no longer needed ide_find_best_pio_mode().
There should be no functionality changes caused by this patch.
Acked-by: Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Drop no longer needed "PIO data" argument from ide_get_best_pio_mode()
and convert all users accordingly.
* Remove no longer needed ide_pio_data_t.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Check IORDY bit for PIO modes > 2.
* Some devices claim maximum PIO mode > 2 in id->tPIO, they were punished too
severly for this by being limited to PIO_SLOW. Limit them to PIO2 instead.
v2:
* Fix PIO number being returned incorrectly instead of PIO mode
(Noticed by Sergei).
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Add ide_pio_cycle_time() helper.
* Use it in ali14xx/ht6560b/qd65xx/cmd64{0,x}/sl82c105 and pmac host drivers
(previously cycle time given by the device was only used for "pio" == 255).
* Remove no longer needed ide_pio_data_t.cycle_time field.
v2:
* Fix "ata_" prefix (Noticed by Jeff).
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Nowadays core IDE code handles restoring of PIO and DMA modes
(ide-io.c:ide_start_power_step() etc) so remove open-coded version
from sc1200_resume().
There should be no change in behavior because settings done by
sc1200_resume() were always overridden by generic_ide_resume()
and ide_{start,stop}_power_step().
* Bump driver version.
Cc: Mark Lord <mlord@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Do the same thing as probe_hwif() and always disable DMA so chipset DMA
enabled bit gets cleared (if the drive doesn't support DMA ide_set_dma()
won't try to tune it anyway).
* Add TODO comment about respecting ->using_dma setting.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
The driver used to depend on BIOS settings for deciding whether it is OK
to use DMA. However it seems that BIOS doesn't always handle all cases
correctly so just let IDE core to decide about this. It should be a safe
thing to do now, after the driver went through heavy bugfixing.
Thanks for bugreport and testing the patch goes out to Sven Niedner.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Always set ->autotune so PIO gets correctly auto-tuned (previously
->autotune was only set when ->dma_base wasn't available, however
->ide_dma_check()/->speedproc() was always trying to tune PIO when
tuning DMA).
* Move code responsible for programming chipset for PIO mode from
svwks_tune_chipset() to svwks_tune_pio(). Don't tune PIO when tuning
DMA (this is no longer needed since ->autotune is always set now).
* Handle PIO modes early in svwks_tune_chipset() so DMA configuration
registers don't get cleared when programming PIO mode.
* Bump driver version.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Rename ide_pci_device_t.flags to ide_pci_device_t.host_flags
and IDEPCI_FLAG_ISA_PORTS flag to IDE_HFLAG_ISA_PORTS.
* Add IDE_HFLAG_SINGLE flag for single channel devices.
* Convert core code and all IDE PCI drivers to use IDE_HFLAG_SINGLE
and remove no longer needed ide_pci_device_t.channels field.
v2:
* Fix issues noticed by Sergei:
- correct code alignment in scc_pata.c
- s/IDE_HFLAG_SINGLE/~IDE_HFLAG_SINGLE/ in serverworks.c
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Print info about overriding PIO mode in ide_get_best_pio_mode().
* Remove info about overriding PIO mode from cmd64{0,x} host drivers.
* Remove no longer needed ide_pio_data_t.overridden field.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Add sil_tuneproc() wrapper for siimage_tuneproc() which also sets
PIO mode on the device.
* Add missing ide_get_best_pio_mode() call to sil_tuneproc() so
"pio" == 255 (autotune) is handled correctly (previously PIO0 was used)
and "pio" values > 4 && < 255 are filtered to PIO4 (instead of PIO0).
* Add code limiting maximum PIO mode according to the pair device capabilities
to sil_tuneproc().
* Convert users of config_siimage_chipset_for_pio() to use sil_tune_pio() and
sil_tuneproc(). This fixes PIO fallback in siimage_config_drive_for_dma() to
use max PIO mode available instead of PIO4 (config_siimage_chipset_for_pio()
used wrong arguments for ide_get_best_pio_mode() and as a results always
tried to set PIO4).
* Remove no longer needed siimage_taskfile_timing()
and config_siimage_chipset_for_pio().
* Enable ->autotune unconditionally and remove PIO tuning for UDMA/MDMA modes
from siimage_speedproc()
* Bump driver version.
v2:
* Fix issues noticed by Sergei:
- correct pair device check
- trim only taskfile PIO to the slowest of the master/slave
- enable ->autotune unconditionally and remove PIO tuning for UDMA/MDMA modes
from siimage_speedproc()
- add TODO item for IORDY bugs
- minor cleanups
Reviewed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Split off exisiting atiixp_tuneproc() into atiixp_tune_pio()
and then add setting device PIO mode to atiixp_tuneproc().
* Add missing ide_get_best_pio_mode() call to atiixp_tuneproc() so
"pio" == 255 (autotune) is handled correctly and "pio" values > 4 && < 255
are filtered to PIO4 (previously "pio" == 5 could result in wrong timings
being used and "pio" values > 4 && < 255 in an OOPS).
* Handle PIO modes early in atiixp_speedproc() so save_mdma_mode[]
doesn't get cleared.
* In atiixp_dma_check():
- fix max_mode argument for ide_get_best_pio_mode()
- don't call atiixp_dma_2_pio() so PIO1 doesn't get remapped to PIO0
- use atiixp_tuneproc() instead of atiixp_speedproc()
* Bump driver version.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Various old IDE drivers go mapping ROM devices for no apparent reason and
without using the ROM mapping API we now have. They don't actually use
the ROM they map and the new libata drivers are happy without it being
mapped so rather than port them lets just junk it for the next -rc1.
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Andrew Morton <akpm@osdl.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
The two CONFIG variables
CONFIG_ETRAX_IDE_CSE1_16_RESET
CONFIG_ETRAX_IDE_CSP0_8_RESET
appear to have been dead since way back in 2.5.xx days:
http://www.linuxhq.com/kernel/v2.5/75/arch/cris/drivers/Kconfig
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Cc: Michael Starvik <starvik@axis.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
One card submitted by user.
Signed-off-by: Marcin Juszkiewicz <openembedded@hrw.one.pl>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Workaround for errata A308: turn down the UDMA mode and retry
the DMA command when the data lost condition is detected.
take2:
udma_filter() hook is used to limit ATAPI UDMA mode.
Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Move to using inline function variant of eieio instead of inline assmebly.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Cc: kou.ishizaki@toshiba.co.jp
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Currently, CONFIG_X86_CMPXCHG64 both enables boot-time checking of
the cmpxchg64b feature and enables compilation of the set_64bit() family.
Since the option is dependent on PAE, and since KVM depends on set_64bit(),
this effectively disables KVM on i386 nopae.
Simplify by removing the config option altogether: the boot check is made
dependent on CONFIG_X86_PAE directly, and the set_64bit() family is exposed
without constraints. It is up to users to check for the feature flag (KVM
does not as virtualiation extensions imply its existence).
Signed-off-by: Avi Kivity <avi@qumranet.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (33 commits)
xtensa: use DATA_DATA in xtensa
powerpc: add missing DATA_DATA to powerpc
cris: use DATA_DATA in cris
kallsyms: remove usage of memmem and _GNU_SOURCE from scripts/kallsyms.c
kbuild: use -fno-optimize-sibling-calls unconditionally
kconfig: reset generated values only if Kconfig and .config agree.
kbuild: fix the warning when running make tags
kconfig: strip 'CONFIG_' automatically in kernel configuration search
kbuild: use POSIX BRE in headers install target
Whitelist references from __dbe_table to .init
modpost white list pattern adjustment
kbuild: do section mismatch check on full vmlinux
kbuild: whitelist references from variables named _timer to .init.text
kbuild: remove hardcoded _logo names from modpost
kbuild: remove hardcoded apic_es7000 from modpost
kbuild: warn about references from .init.text to .exit.text
kbuild: consolidate section checks
kbuild: refactor code in modpost to improve maintainability
kbuild: ignore section mismatch warnings originating from .note section
kbuild: .paravirtprobe section is obsolete, so modpost doesn't need to handle it
...
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6: (44 commits)
i2c: Delete the i2c-isa pseudo bus driver
hwmon: refuse to load abituguru driver on non-Abit boards
hwmon: fix Abit Uguru3 driver detection on some motherboards
hwmon/w83627ehf: Be quiet when no chip is found
hwmon/w83627ehf: No need to initialize fan_min
hwmon/w83627ehf: Export the thermal sensor types
hwmon/w83627ehf: Enable VBAT monitoring
hwmon/w83627ehf: Add support for the VID inputs
hwmon/w83627ehf: Fix timing issues
hwmon/w83627ehf: Add error messages for two error cases
hwmon/w83627ehf: Convert to a platform driver
hwmon/w83627ehf: Update the Kconfig entry
make coretemp_device_remove() static
hwmon: Add LM93 support
hwmon: Improve the pwmN_enable documentation
hwmon/smsc47b397: Don't report missing fans as spinning at 82 RPM
hwmon: Add support for newer uGuru's
hwmon/f71805f: Add temperature-tracking fan control mode
hwmon/w83627ehf: Preserve speed reading when changing fan min
hwmon: fix detection of abituguru volt inputs
...
Manual fixup of trivial conflict in MAINTAINERS file
If root raised the default wakeup threshold over the size of the
output pool, the pool transfer function could overflow the stack with
RNG bytes, causing a DoS or potential privilege escalation.
(Bug reported by the PaX Team <pageexec@freemail.hu>)
Cc: Theodore Tso <tytso@mit.edu>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With this patch the abituguru refuses to load on non Abit motherboards, as
discussed in lkml CONFIG_BREAK_MY_MACHINE thread.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
This patch changes the driver to also detect uguru3's which hold 0x08 at DATA
initially, as has been reported here:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=220160
Also when an uguru3's holds 0x0014 in the ID register it will now report
"Abit AB9 Pro" as motherboard identification.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
We don't need to initialize fan_min in this driver, as the fan_div
attributes are read-only.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Add support for the w83627ehf thermal sensor types. I made them read-only,
as the BIOS is supposed to set them up properly. This information makes it
easier to find out which temperature channel corresponds to the CPU.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
If VBAT monitoring is disabled, enable it. Original patch from
an anonymous contributor on the lm-sensors trac system:
http://lm-sensors.org/ticket/2218
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
The W83627EHF and similar chips have 6 VID input pins, add support
for them. The driver changes the input voltage level automatically
if the current setting is not correct for the detected CPU model.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
* I have experimental evidence that the W83627EHG needs more than 1
second to refresh all the measured values. Increase the caching time to
1.5 second.
* When changing a fan clock divider, the corresponding fan speed
measurement register is no longer valid, until the next time the chip
will refresh it. One way to fix this is to pretend that the cache is
still valid for one more period (1.5 second.)
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
If the Super-I/O device is disabled, it is likely the BIOS has a good
reason for leaving it disabled, so give a warning when enabling it --
it's not likely to be wired correctly or be able to give good data.
Also, if the Super-I/O device is configured with an address of 0, the
driver refuses to initialize it.
Signed-off-by: David Hubbard <david.c.hubbard@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Remove i2c-isa from the w83627ehf driver, and use a platform driver
instead.
Signed-off-by: David Hubbard <david.c.hubbard@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Add description for the W83627DHG chip to Kconfig.
Signed-off-by: David Hubbard <david.c.hubbard@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
coretemp_device_remove() can become static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
This patch adds support for the LM93 hardware monitoring chip.
Signed-off-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Also protects ourselves against a possible division by zero.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
This patch adds a new driver for the hardware monitoring features of the
third revision of the Abit uGuru chip, found on recent Abit
motherboards. This is an entirely different beast then the first and
second revision (its again a winbond microcontroller, but the "protocol"
to talk to it and the bank addresses are very different.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Add support for the "temperature mode" fan speed control. In this mode,
the user can define 3 temperature/speed trip points, and the chip will
set the speed automatically according to the temperature changes.
Signed-off-by: Phil Endecott <kernel@chezphil.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
The w83627ehf driver changes the fan clock divider automatically when
a new min fan speed is set. It is supposed to preserve the fan speed
reading while doing so, bug doesn't really. Fix it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
This patch fixes the detection of volt inputs with a reading of more then 240
units.
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
This patch adds the SMSC SCH5317 chip (device ID 0x85) as a supported
device to the smsc47b397 driver.
Signed-off-by: Juerg Haefliger <juergh at gmail.com>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
This is the patch for converting it87 to a platform driver (and remove i2c-isa).
Signed-off-by: Corentin LABBE <corentin.labbe@geomatys.fr>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Fix a potential race condition when some hardware monitoring platform
drivers are being unloaded. I believe that the driver data pointer
shouldn't be cleared before all the sysfs files are removed, otherwise
a sysfs callback might attempt to dereference a NULL pointer. I'm not
sure exactly what the driver core protects drivers against, so let's
play it safe.
While we're here, clear the driver data pointer when probe fails, so
as to not leave an invalid pointer behind us.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Convert the vt8231 driver from the nonsensical i2c-isa hack to a
regular platform driver.
Signed-off-by: Roger Lucas <roger@planbit.co.uk>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Fix the writing of the temperature interrupt configuration.
The old code was working only by accident.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Add support for IT8726F chip driver, which is just same as
IT8716F with additional glue logic for AMD power sequencing.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
We have the following naming convention documented in
Documentation/hwmon/sysfs-interface for fault files:
in[0-*]_input_fault
fan[1-*]_input_fault
temp[1-*]_input_fault
Some drivers follow this convention (lm63, lm83, lm90, smsc47m192).
However some drivers omit the "input" part and create files named
fan1_fault (pc87427) or temp1_fault (dme1737). And the new "generic"
libsensors follows this second (non-standard) convention, so it fails
to report fault conditions for drivers which follow the standard.
We want a single naming scheme, and everyone seems to prefer the
shorter variant, so let's go for it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Use platform_device_add_data() in hardware monitoring drivers. This
makes the code nicer and smaller too. Reported by David Hubbard.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: David Hubbard <david.c.hubbard@gmail.com>
Convert the pc87360 driver from the nonsensical i2c-isa hack to a
regular platform driver. This is a direct conversion, other cleanups
could happen on top of that.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jim Cromie <jim.cromie@gmail.com>
Add support for the hardware monitoring and fan control
capabilities of the SMSC DME1737 and Asus A8000 Super-I/O chips.
The hardware monitoring logic of this chip is similar to the LM85 but
has some additional features that this driver supports. Even though
it's a Super-I/O chip, the hardware monitoring logic can only be
accessed via SMBus.
Signed-off-by: Juerg Haefliger <juergh at gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This lets us get rid of macro-generated functions and shrinks the
driver size by about 8%.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Aurelien Jarno <aurelien@aurel32.net>
* Discard comments which do not apply or are redundant.
* Remove a few useless instructions.
* Rename new_client to just client.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Aurelien Jarno <aurelien@aurel32.net>
This patch moves the bsg registration into SCSI so that bsg no longer
has a dependency on the scsi_interface_register API.
This can be viewed as a temporary expedient until we can get universal
bsg binding sorted out properly. Also use the sdev bus_id as the
generic bsg name (to avoid clashes with the queue name).
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
ide-disk calls
ide_end_request(drive, 0, 0);
to finish an unknown request, but this doesn't work so well for non-fs
requests, since ide_end_request() internally looks at ->hard_cur_sectors
to see how much data to end. Only file system requests store a transfer
value in there, pc requests fill out ->data_len as a byte based transfer
value instead.
Since we ask to end 0 bytes of that request, it will never be terminated
and ide-disk gets stuck in a loop "handling" that same request over and
over.
Switch __ide_end_request() to take a byte based transfer count, and
adjust ide_end_request() to look at the right field to determine how
much IO to end when it's being passed in 0.
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Tested-By: Giacomo Catenazzi <cate@debian.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
collapsed with fw-sbp2 patch "Drop cast to non-const char * in host
template initialization." from Kristian Høgsberg
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Some simple fixes to properly reference counter values from the block
attribute level of edac_device objects. Properly sequencing the array pointer
was added, resulting in correct identification of block level attributes from
their base class functions.
Added more verbose debug statement for event tracking.
Also during some corner testing, found a bug in the store/show sequence
of operations for the block attribute/controls management.
An old intermediate structure for 'blocks' was still in the processing
pipeline. This patch removes that old structure and correctly utilizes the
new struct edac_dev_sysfs_block_attribute for passing control from the sysfs
to the low level store/show function of the edac driver.
Now the proper kobj pointer to passed downward to the store/show
functions.
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: Greg KH <greg@kroah.com>
Cc: 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>
Fix mutex locking deadlock on the device controller linked list. Was calling
a lock then a function that could call the same lock. Moved the cancel workq
function to outside the lock
Added some short circuit logic in the workq code
Added comments of description
Code tidying
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: Greg KH <greg@kroah.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With feedback, this patch corrects operation of the kobject release operation
on kobjects, attributes and controls for the edac_device.
Cc: Alan Cox alan@lxorguk.ukuu.org.uk
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch refactors the 'releasing' of kobjects for the edac_mc type of
device. The correct pattern of kobject release is followed.
As internal kobjs are allocated they bump a ref count on the top level kobj.
It in turn has a module ref count on the edac_core module. When internal
kobjects are released, they dec the ref count on the top level kobj. When the
top level kobj reaches zero, it decrements the ref count on the edac_core
object, allow it to be unloaded, as all resources have all now been released.
Cc: Alan Cox alan@lxorguk.ukuu.org.uk
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Refactoring of sysfs code necessitated the refactoring of the
edac_device_alloc() and edac_device_add_device() apis, of moving the index
value to the alloc() function. This patch alters the in tree drivers to
utilize this new api signature.
Having the index value performed later created a chicken-and-the-egg issue.
Moving it to the alloc() function allows for creating the necessary sysfs
entries with the proper index number
Cc: Alan Cox alan@lxorguk.ukuu.org.uk
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Refactoring of sysfs code necessitated the refactoring of the edac_mc_alloc()
and edac_mc_add_mc() apis, of moving the index value to the alloc() function.
This patch alters the in tree drivers to utilize this new api signature.
Having the index value performed later created a chicken-and-the-egg issue.
Moving it to the alloc() function allows for creating the necessary sysfs
entries with the proper index number
Cc: Alan Cox alan@lxorguk.ukuu.org.uk
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch fixes and enhances the driver level set of sysfs attributes that
can be added to the 'block' level of an edac_device type of driver.
There is a controller information structure, which contains one or more
instances of device. Each instance will have one or more blocks of device
specific counters. This patch fixes the ability to have more detailed
attributes/controls for each of the 'blocks', providing for the addition of
controls/attributes from the low level driver to user space via sysfs.
Cc: Alan Cox alan@lxorguk.ukuu.org.uk
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
NEW EDAC driver for the memory controllers on PA Semi PA6T-1682M.
Changes since last submission:
* Rebased on top of 2.6.22-rc4-mm2 with the EDAC changes merged there.
* Minor checkpatch.pl cleanups
* Renamed ctl_name
* Added dev_name
* edac_mc.h -> edac_core.h
[akpm@linux-foundation.org: make printk more informative]
Cc: Alan Cox alan@lxorguk.ukuu.org.uk
Signed-off-by: Egor Martovetsky <egor@pasemi.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Doug Thompson <dougthompson@xmission.com
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Found a 'reversal' decoding bug in the driver. This patch fixes that mapping
to correctly display the CSROW entries in their proper order. Users will be
enable to correctly identifiy the failing DIMM with this fix.
[akpm@linux-foundation.org: unneeded (and undesirable) cast of void*]
Cc: Alan Cox alan@lxorguk.ukuu.org.uk
Signed-off-by: Mark Grondona <mgrondona@llnl.gov>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A previous patch changed the edac_mc src file from semaphore usage to mutex
This patch changes the edac_device src file as well, from semaphore use to
mutex operation.
Use a mutex primitive for mutex operations, as it does not require a
semaphore
Cc: Alan Cox alan@lxorguk.ukuu.org.uk
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Refactored the function edac_op_state_toString() to be edac_op_state_to_string()
for consistent style, and its callers
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Refactor the edac_align_ptr() function to reduce the noise of casting the
aligned pointer to the various types of data objects and modified its callers
to its new signature
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
For the file edac_device.c perform some coding style enhancements
Add some function header comments
Made for better readability commands
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Various code style conformance patches on the i5000 driver
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patches to conform to coding style, namely static don't need to be initialized
to NULL nor '0', as that is the default
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Found a typo in one of the #defines in the driver
MTR_DIM_RANKS --> MTR_DIMM_RANK
Signed-off-by: Marisuz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Compiling this module gave a warning that the return value of
'pci_bus_add_device()' was not checked.
This patch adds that check and an output message
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Cc: 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>
If ERRSTS indicates that there's no error then we don't need to bother reading
the other registers.
In addition to making the common case faster, this actually fixes a small race
where we don't see an error but we clear the error bits anyway, potentially
wiping away info on an error that happened in the interim (or where a CE
arrives between the first and second read of ERRSTS, causing us to falsely
claim "UE overwrote CE").
Signed-off-by: Jason Uhlenkott <juhlenko@akamai.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Cc: 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>
1) Remove an old CVS ID string
2) change EDAC from a tristate option to a simple bool option
3) In addition to the X86 arch, PPC and MIPS also have drivers in the
submission queue. This patch turns on the EDAC flag for those archs. Each
driver will have its respective 'depends on ARCH' set.
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Cc: 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>
This patch fixes some remnant spaces inserted by the use of Lindent.
Seems Lindent adds some spaces when it shoulded. These have been fixed.
In addition, goto targets have issues, these have been fixed
in this patch.
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kconfig - modified the help of EDAC
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The error handling output strings needed to be refactored for better
displaying of the error informaton.
Also needed to added offset_value for output as well
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Added new controls for the edac_device and edac_mc sysfs folder.
These can be initialized by the low level driver to provide misc
controls into the low level driver for its use
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move x86 drivers to new pci controller setup
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Run r82600_edac.c file through Lindent for cleanup
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Run i82443bxgx.c file through Lindent for cleanup
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Run e752x_edac.c file through Lindent for cleanup
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ran e752x_edac.c file through Lindent for cleanup
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ran this driver through Lindent for cleanup
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The origin of this code comes from patches at sourceforge, that
allow EDAC to be updated to various kernels. With kernel version 2.6.20 a
new workq system was installed, thus the patches needed to be modified
based on the kernel version. For submitting to the latest kernel.org
those #ifdefs are removed
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Removal of some old dead and disabled code from the edac_device sysfs code
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Run the EDAC CORE files through Lindent for cleanup
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixup poll values for MC and PCI.
Also make mc function names unique to mc.
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Douglas Thompson <dougthompson@xmissin.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change error check and clear variable from an atomic to an int
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Moving PCI to a per-instance device model
This should include the correct sysfs setup as well. Please review.
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move the memory controller object to work queue based implementation from the
kernel thread based.
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here's a driver for the Intel 3000 and 3010 memory controllers,
relative to today's Sourceforge code drop. This has only had light
testing (I've yet to actually see it handle a memory error) but it
detects my hardware correctly.
Signed-off-by: Jason Uhlenkott <juhlenko@akamai.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move dev_name() macro to a more generic interface since it's not possible
to determine whether a device is pci, platform, or of_device easily.
Now each low level driver sets the name into the control structure, and
the EDAC core references the control structure for the information.
Better abstraction.
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In the refactoring of edac_mc.c into several subsystem files,
the header file edac_mc.h became meaningless. A new header file
edac_core.h was created. All the files that previously included
"edac_mc.h" are changed to include "edac_core.h".
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Provides a way for NMI reported errors on x86 to notify the EDAC
subsystem pending ECC errors by writing to a software state variable.
Here's the reworked patch. I added an EDAC stub to the kernel so we can
have variables that are in the kernel even if EDAC is a module. I also
implemented the idea of using the chip driver to select error detection
mode via module parameter and eliminate the kernel compile option.
Please review/test. Thx!
Also, I only made changes to some of the chipset drivers since I am
unfamiliar with the other ones. We can add similar changes as we go.
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
It will claim the PCI devices from under intel_agp.ko's feet. Greg is brewing
some fix for that.
Cc: Douglas Thompson <dougthompson@xmission.com>
Cc: Tim Small <tim@buttersideup.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is a NEW EDAC Memory Controller driver for the 440BX chipset (I82443BXGX)
created and submitted by Timm Small
Signed-off-by: Tim Small <tim@buttersideup.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch to fix some scrubbing #defines in the edac_core.h file
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric Wollesen ported the Bluesmoke Memory Controller driver (written by Doug
Thompson) for the Intel 5000X/V/P (Blackford/Greencreek) chipset to the in
kernel EDAC model.
This patch incorporates the module for the 5000X/V/P chipset family
[m.kozlowski@tuxland.pl: edac i5000 parenthesis balance fix]
Signed-off-by: Eric Wollesen <ericw@xmtp.net>
Signed-off-by: Doug Thompson <norsk5@xmission.com>
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The EDAC core code uses a semaphore as mutex. use the mutex API
instead of the (binary) semaphore.
Matthaias wrote this, but since I had some patches ahead of it,
I need to modify it to follow my patches.
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adding missing mem types for use in the sysfs presentation file for
Memory Controller device objects.
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch adds the new 'class' of object to be managed, named: 'edac_device'.
As a peer of the 'edac_mc' class of object, it provides a non-memory centric
view of an ERROR DETECTING device in hardware. It provides a sysfs interface
and an abstraction for varioius EDAC type devices.
Multiple 'instances' within the class are possible, with each 'instance'
able to have multiple 'blocks', and each 'block' having 'attributes'.
At the 'block' level there are the 'ce_count' and 'ue_count' fields
which the device driver can update and/or call edac_device_handle_XX()
functions. At each higher level are additional 'total' count fields,
which are a summation of counts below that level.
This 'edac_device' has been used to capture and present ECC errors
which are found in a a L1 and L2 system on a per CORE/CPU basis.
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is a large patch to refactor the original EDAC module in the kernel
and to break it up into better file granularity, such that each source
file contains a given subsystem of the EDAC CORE.
Originally, the EDAC 'core' was contained in one source file: edac_mc.c
with it corresponding edac_mc.h file.
Now, there are the following files:
edac_module.c The main module init/exit function and other overhead
edac_mc.c Code handling the edac_mc class of object
edac_mc_sysfs.c Code handling for sysfs presentation
edac_pci_sysfs.c Code handling for PCI sysfs presentation
edac_core.h CORE .h include file for 'edac_mc' and 'edac_device' drivers
edac_module.h Internal CORE .h include file
This forms a foundation upon which a later patch can create the 'edac_device'
class of object code in a new file 'edac_device.c'.
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch makes needlessly global code static, in the edac core
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Doug Thompson <norsk5@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This simple patch adds an important CORE API for EDAC that EDAC drivers can
use to find their edac_mc control structure by passing a mem_ctl_info
'instance' value
Needed for subsequent patches
Signed-off-by: Douglas Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Lguest net driver
A simple net driver for lguest.
[akpm@linux-foundation.org: include fix]
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeff Garzik <jeff@garzik.org>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the Kconfig and Makefile to allow lguest to actually be
compiled.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the code for the "lg.ko" module, which allows lguest guests to
be launched.
[akpm@linux-foundation.org: update for futex-new-private-futexes]
[akpm@linux-foundation.org: build fix]
[jmorris@namei.org: lguest: use hrtimers]
[akpm@linux-foundation.org: x86_64 build fix]
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lguest is a simple hypervisor for Linux on Linux. Unlike kvm it doesn't need
VT/SVM hardware. Unlike Xen it's simply "modprobe and go". Unlike both, it's
5000 lines and self-contained.
Performance is ok, but not great (-30% on kernel compile). But given its
hackability, I expect this to improve, along with the paravirt_ops code which
it supplies a complete example for. There's also a 64-bit version being
worked on and other craziness.
But most of all, lguest is awesome fun! Too much of the kernel is a big ball
of hair. lguest is simple enough to dive into and hack, plus has some warts
which scream "fork me!".
This patch:
This is the code and headers required to make an i386 kernel an lguest guest.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adds support for periodic irq enabling in rtc-cmos. This could be used by
the ALSA driver and is already being tested with the zaptel ztdummy module.
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There is check_reset() -- global function in drivers/isdn/sc/
There is check_reset -- variable holding module param in aacraid driver.
On allyesconfig they clash with:
LD drivers/built-in.o
drivers/isdn/built-in.o: In function `check_reset':
: multiple definition of `check_reset'
drivers/scsi/built-in.o:(.data+0xe458): first defined here
ld: Warning: size of symbol `check_reset' changed from 4 in drivers/scsi/built-in.o to 219 in drivers/isdn/built-in.o
ld: Warning: type of symbol `check_reset' changed from 1 to 2 in drivers/isdn/built-in.o
Rename the former.
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc).
Here is a short excerpt of the semantic patch performing
this transformation:
@@
type T2;
expression x;
identifier f,fld;
expression E;
expression E1,E2;
expression e1,e2,e3,y;
statement S;
@@
x =
- kmalloc
+ kzalloc
(E1,E2)
... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\)
- memset((T2)x,0,E1);
@@
expression E1,E2,E3;
@@
- kzalloc(E1 * E2,E3)
+ kcalloc(E1,E2,E3)
[akpm@linux-foundation.org: get kcalloc args the right way around]
Signed-off-by: Yoann Padioleau <padator@wanadoo.fr>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Dave Airlie <airlied@linux.ie>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Acked-by: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Greg KH <greg@kroah.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
MBCS has a collection of things that searches say are not used elsewhere
and could be static. If this is the case they should be static, if not
then someone at SGI should rename things like "soft_list" so they don't
pollute the global namespace with generic names...
Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Bruce Losure <blosure@sgi.com>
Cc: Jes Sorensen <jes@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
unregister_chrdev() always returns 0. There is no need to check the return
value.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Introduce the pm_power_off_prepare() callback that can be registered by the
interested platforms in analogy with pm_idle() and pm_power_off(), used for
preparing the system to power off (needed by ACPI).
This allows us to drop acpi_sysclass and device_acpi that are only defined in
order to register the ACPI power off preparation callback, which is needed by
pm_power_off() registered in a much different way.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since we are now explicitly calling hibernation_ops->prepare() before
hibernation_ops->enter() in hibernation_platform_enter() (defined in
kernel/power/disk.c), ACPI should not call acpi_sleep_prepare(ACPI_STATE_S4)
from acpi_shutdown().
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
At least on some machines it is necessary to prepare the ACPI firmware for the
restoration of the system memory state from the hibernation image if the
"platform" mode of hibernation has been used. Namely, in that cases we need
to disable the GPEs before replacing the "boot" kernel with the "frozen"
kernel (cf. http://bugzilla.kernel.org/show_bug.cgi?id=7887). After the
restore they will be re-enabled by hibernation_ops->finish(), but if the
restore fails, they have to be re-enabled by the restore code explicitly.
For this purpose we can introduce two additional hibernation operations,
called pre_restore() and restore_cleanup() and call them from the restore code
path. Still, they should be called if the "platform" mode of hibernation has
been used, so we need to pass the information about the hibernation mode from
the "frozen" kernel to the "boot" kernel in the image header.
Apparently, we can't drop the disabling of GPEs before the restore because of
Bug #7887 . We also can't do it unconditionally, because the GPEs wouldn't
have been enabled after a successful restore if the suspend had been done in
the 'shutdown' or 'reboot' mode.
In principle we could (and probably should) unconditionally disable the GPEs
before each snapshot creation *and* before the restore, but then we'd have to
unconditionally enable them after the snapshot creation as well as after the
restore (or restore failure) Still, for this purpose we'd need to modify
acpi_enter_sleep_state_prep() and acpi_leave_sleep_state() and we'd have to
introduce some mechanism synchronizing the disablind/enabling of the GPEs with
the device drivers' .suspend()/.resume() routines and with
disable_/enable_nonboot_cpus(). However, this would have affected the
suspend (ie. s2ram) code as well as the hibernation, which I'd like to avoid
in this patch series.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Nigel Cunningham <nigel@nigel.suspend2.net>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In order to enable things like PM_TRACE, you're required to enable
PM_DEBUG, which sends a large spew of messages on boot, and often times can
overflow dmesg buffer.
Create new PM_VERBOSE and shift that to be the option that enables
drivers/base/power's messages.
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tina Yang <tina.yang@oracle.com> discovered an MSI related problem
when doing kdump. The problem is that the kexec kernel is booted
without going through system reset, and as a result, MSI may already
be enabled when tg3_init_one() is called. tg3_init_one() calls
pci_save_state() which will save the stale MSI state. Later on in
tg3_open(), we call pci_enable_msi() to reconfigure MSI on the chip
before we reset the chip. After chip reset, we call
pci_restore_state() which will put the stale MSI address/data back
onto the chip.
This is no longer a problem in the latest kernel because
pci_restore_state() has been changed to restore MSI state from
internal data structures which will guarantee restoring the proper
MSI state.
But I think we should still fix it. Our save and restore sequence
can still cause very subtle problems down the road. The fix is to
have our own functions save and restore precisely what we need. We
also change it to save and restore state inside tg3_chip_reset() in a
more straight forward way.
Thanks to Tina for helping to test and debug the problem.
[ Bump driver version and release date. -DaveM ]
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On systems that do not have pm2_control_block, we cannot really use
ARB_DISABLE before C3. We used to disable C3 totally on such systems.
To be compatible with Windows, we need to enable C3 on such systems now.
We just skip ARB_DISABLE step before entering the C3-state and assume
hardware is handling things correctly. Also, ACPI spec is not clear
about pm2_control is _needed_ for C3 or not.
We have atleast one system that need this to enable C3.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband: (29 commits)
IB/mthca: Simplify use of size0 in work request posting
IB/mthca: Factor out setting WQE UD segment entries
IB/mthca: Factor out setting WQE remote address and atomic segment entries
IB/mlx4: Factor out setting other WQE segments
IB/mlx4: Factor out setting WQE data segment entries
IB/mthca: Factor out setting WQE data segment entries
IB/mlx4: Return receive queue sizes for userspace QPs from query QP
IB/mlx4: Increase max outstanding RDMA reads as target
RDMA/cma: Remove local write permission from QP access flags
IB/mthca: Use uninitialized_var() for f0
IB/cm: Make internal function cm_get_ack_delay() static
IB/ipath: Remove ipath_get_user_pages_nocopy()
IB/ipath: Make a few functions static
mlx4_core: Reset device when internal error is detected
IB/iser: Make a couple of functions static
IB/mthca: Fix printk format used for firmware version in warning
IB/mthca: Schedule MSI support for removal
IB/ehca: Fix warnings issued by checkpatch.pl
IB/ehca: Restructure ehca_set_pagebuf()
IB/ehca: MR/MW structure refactoring
...
acpi_ev_pci_config_region_setup() leaks pci_id
in the error case of "if (!pci_device_node)"
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Data returned by acpi_get_name in acpi_buffer is not acpi_object and
therefore should not be cast to it, otherwise we'll get an nice oops
trying to print error message.
Also print name of the ACPI object corresponding to the docking station
and elevate severity of the message printed when _DCK fails to KERN_ERR.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
this is a patch that adds support for Hilscher CIF DeviceNet and
Profibus cards. I tested it on a Kontron CPX board, and Thomas reviewed
it.
You can find the user space part here:
http://www.osadl.org/projects/downloads/UIO/user/cif-0.1.0.tar.gz
Notes: cif_api.c is the main file you want to look at. It contains the
functions to open, close, mmap and so on. cif_dps.c adds functions
specific to Profibus cards, and cif_dn.c contains functions for
DeviceNet cards. cif.c is a universal playground, it's just a small
test program. The user space part of this UIO driver is still work in
progress, and not everything is tested yet. At the moment, the thread in
cif_api.c contains some code that artificially makes the card generate
interrupts, this was added for testing and will be removed later. But
the driver already contains all the functions needed for useful
operation, so it gives a good idea of how such a thing looks like.
For comparison, here's what you get from the manufacturer
(www.hilscher.com) when you ask for a Linux 2.6 driver:
http://www.tglx.de/private/hjk/cif-orig-2.6.tar.bz2
WARNING: Don't look at the code for too long, you might become sick :-)
Signed-off-by: Hans-Jürgen Koch <hjk@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This interface allows the ability to write the majority of a driver in
userspace with only a very small shell of a driver in the kernel itself.
It uses a char device and sysfs to interact with a userspace process to
process interrupts and control memory accesses.
See the docbook documentation for more details on how to use this
interface.
From: Hans J. Koch <hjk@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Benedikt Spranger <b.spranger@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Check for return value of sysfs_create_link() in device_add() and
device_rename(). Add helper functions device_add_class_symlinks() and
device_remove_class_symlinks() to make the code easier to read.
[akpm@linux-foundation.org: fix unused var warnings]
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This defines a dev_vdbg() call, which is enabled with -DVERBOSE_DEBUG.
When enabled, dev_vdbg() acts just like dev_dbg(). When disabled, it is a
NOP ... just like dev_dbg() without -DDEBUG. The specific code was moved
out of a USB patch, but lots of drivers have similar support.
That is, code can now be written to use an additional level of debug
output, selected at compile time. Many driver authors have found this
idiom to be very useful. A typical usage model is for "normal" debug
messages to focus on fault paths and not be very "chatty", so that those
messages can be left on during normal operation without much of a
performance or syslog load. On the other hand "verbose" messages would be
noisy enough that they wouldn't normally be enabled; they might even affect
timings enough to change system or driver behavior.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as933) removes the deprecated dpm_runtime_suspend() and
dpm_runtime_resume() routines from the PM core. The only user of
those routines is the PCMCIA ds driver; local replacements are added.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This allows the uevent file to handle any type of uevent action to be
triggered by userspace instead of just the "add" uevent.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The driver didn't allow an interface's MAC address to be modified if the
respective interface wasn't setup - a failing Hcall was the result. Thus
bonding wasn't usable. The fix moves the failing Hcall which was registering
a MAC address for the reception of BC packets in firmware from the port up
and down functions to the port resources setup functions. Additionally the
missing update of the last_rx member of the netdev structure was added.
Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch implements the driver necessary use the Analog Devices
Blackfin processor's on-chip ethernet MAC controller.
[try#2]
- add timeout control
- kill dma_config_reg bitfields
- some trivial cleanup
[try#3]
- add endianess check
- add DRV_NAME, DRV_VERSION... driver information string
- add some comments for silicon anomaly and dma API confusion
- some code trivial cleanup
[try#4]
- add Blackfin latest GPIO pin mux opertion with Michael Hennerich's
help and Dan's review
- rewrite the DMA descriptor list operation in a more readable way
by Joe's review
[try#5]
- cleanup some coding style by Joe's review.
[try#6]
- 1.1 version fix a bug when set up multicast list pointed by Mr. yoshfuji
- rearrange the desc_list_free function.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Cc: Michael Buesch <mb@bu3sch.de>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Dan Williams <dcbw@redhat.com>
Cc: Joe Perches <joe@perches.com>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
The TSEC/eTSEC can detect the interface to the PHY automatically,
but it isn't able to detect whether the RGMII connection needs internal
delay. So we need to detect that change in the device tree, propagate
it to the platform data, and then check it if we're in RGMII. This fixes
a bug on the 8641D HPCN board where the Vitesse PHY doesn't use the delay
for RGMII.
Signed-off-by: Andy Fleming <afleming@freescale.com>
The Vitesse PHY on the 8641D needs to be set up with internal delay to
work in RGMII mode. So we add skew when it is set to RGMII_ID mode.
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Haruki Dai <Dai.Haruki@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
The Vitesse 824x PHY doesn't allow an interrupt to be cleared if
the mask bit for that interrupt isn't set. This means that the PHY
Lib's order of handling interrupts (disable, then clear) breaks on this
PHY. However, clearing then disabling the interrupt opens up the code
for a silly race condition. So rather than change the PHY Lib, we change
the Vitesse driver so it always clears interrupts before disabling them.
Further, the ack function only clears the interrupt if interrupts are
enabled.
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Acked-by: Haiying Wang <Haiying.Wang@freescale.com>
Coverity (1792) spotted a possibly uninitialized return value in case of
kmalloc() failure:
1116 static int hisax_cs_setup(int cardnr, struct IsdnCard *card,
1117 struct IsdnCardState *cs)
1119 int ret;
1120
1121 if (!(cs->rcvbuf = kmalloc(MAX_DFRAME_LEN_L1, GFP_ATOMIC))) {
1122 printk(KERN_WARNING "HiSax: No memory for isac rcvbuf\n");
1123 ll_unload(cs);
1124 goto outf_cs;
...
1165 outf_cs:
1166 kfree(cs);
1167 card->cs = NULL;
1168 return ret;
The straightforward solution would be to just add the missing
initialization but hardcoding the return value in the out_cs branch
(only taken on failure) seems to work just as well and it allows killing
a couple of other lines too.
Signed-off-by: Florin Malita <fmalita@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Found and debugged by Jay Fenlason <fenlason@redhat.com>.
The bug was especially noticeable with direct I/O over fw-sbp2.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
