30 Sep, 2006
1 commit
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This teaches dmi_decode() how to decode and save OEM Strings (type 11) DMI
information, which is currently discarded silently. Existing code using
DMI is not affected. Follows the "System Management BIOS (SMBIOS)
Specification" (http://www.dmtf.org/standards/smbios), and also the
userspace dmidecode.c code.OEM Strings are the only safe way to identify some hardware, e.g., the
ThinkPad embedded controller used by the soon-to-be-submitted tp_smapi
driver. This will also let us eliminate the long whitelist in the mainline
hdaps driver (in a future patch).Signed-off-by: Shem Multinymous
Cc: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Jul, 2006
1 commit
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Signed-off-by: Jörn Engel
Signed-off-by: Adrian Bunk
26 Jun, 2006
2 commits
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Add DMI interface functions to a new Firmware Interfaces chapter in the
kernel-api DocBook. Clean up kernel-doc in drivers/firmware/dmi_scan.c.Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Lots of people use this. Apparently RH has for over 18 months so lets
drop EXPERIMENTAL.Signed-off-by: Chris Wedgwood
Cc: Matt Domsch
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
15 Apr, 2006
1 commit
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dmi_scan.c is arch-independent and is used by i386, x86_64, and ia64.
Currently all three arches compile it from arch/i386, which means that ia64
and x86_64 depend on things in arch/i386 that they wouldn't otherwise care
about.This is simply "mv arch/i386/kernel/dmi_scan.c drivers/firmware/" (removing
trailing whitespace) and the associated Makefile changes. All three
architectures already set CONFIG_DMI in their top-level Kconfig files.Signed-off-by: Bjorn Helgaas
Cc: Andi Kleen
Cc: "Luck, Tony"
Cc: Andrey Panin
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman
28 Mar, 2006
1 commit
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The kernel's implementation of notifier chains is unsafe. There is no
protection against entries being added to or removed from a chain while the
chain is in use. The issues were discussed in this thread:http://marc.theaimsgroup.com/?l=linux-kernel&m=113018709002036&w=2
We noticed that notifier chains in the kernel fall into two basic usage
classes:"Blocking" chains are always called from a process context
and the callout routines are allowed to sleep;"Atomic" chains can be called from an atomic context and
the callout routines are not allowed to sleep.We decided to codify this distinction and make it part of the API. Therefore
this set of patches introduces three new, parallel APIs: one for blocking
notifiers, one for atomic notifiers, and one for "raw" notifiers (which is
really just the old API under a new name). New kinds of data structures are
used for the heads of the chains, and new routines are defined for
registration, unregistration, and calling a chain. The three APIs are
explained in include/linux/notifier.h and their implementation is in
kernel/sys.c.With atomic and blocking chains, the implementation guarantees that the chain
links will not be corrupted and that chain callers will not get messed up by
entries being added or removed. For raw chains the implementation provides no
guarantees at all; users of this API must provide their own protections. (The
idea was that situations may come up where the assumptions of the atomic and
blocking APIs are not appropriate, so it should be possible for users to
handle these things in their own way.)There are some limitations, which should not be too hard to live with. For
atomic/blocking chains, registration and unregistration must always be done in
a process context since the chain is protected by a mutex/rwsem. Also, a
callout routine for a non-raw chain must not try to register or unregister
entries on its own chain. (This did happen in a couple of places and the code
had to be changed to avoid it.)Since atomic chains may be called from within an NMI handler, they cannot use
spinlocks for synchronization. Instead we use RCU. The overhead falls almost
entirely in the unregister routine, which is okay since unregistration is much
less frequent that calling a chain.Here is the list of chains that we adjusted and their classifications. None
of them use the raw API, so for the moment it is only a placeholder.ATOMIC CHAINS
-------------
arch/i386/kernel/traps.c: i386die_chain
arch/ia64/kernel/traps.c: ia64die_chain
arch/powerpc/kernel/traps.c: powerpc_die_chain
arch/sparc64/kernel/traps.c: sparc64die_chain
arch/x86_64/kernel/traps.c: die_chain
drivers/char/ipmi/ipmi_si_intf.c: xaction_notifier_list
kernel/panic.c: panic_notifier_list
kernel/profile.c: task_free_notifier
net/bluetooth/hci_core.c: hci_notifier
net/ipv4/netfilter/ip_conntrack_core.c: ip_conntrack_chain
net/ipv4/netfilter/ip_conntrack_core.c: ip_conntrack_expect_chain
net/ipv6/addrconf.c: inet6addr_chain
net/netfilter/nf_conntrack_core.c: nf_conntrack_chain
net/netfilter/nf_conntrack_core.c: nf_conntrack_expect_chain
net/netlink/af_netlink.c: netlink_chainBLOCKING CHAINS
---------------
arch/powerpc/platforms/pseries/reconfig.c: pSeries_reconfig_chain
arch/s390/kernel/process.c: idle_chain
arch/x86_64/kernel/process.c idle_notifier
drivers/base/memory.c: memory_chain
drivers/cpufreq/cpufreq.c cpufreq_policy_notifier_list
drivers/cpufreq/cpufreq.c cpufreq_transition_notifier_list
drivers/macintosh/adb.c: adb_client_list
drivers/macintosh/via-pmu.c sleep_notifier_list
drivers/macintosh/via-pmu68k.c sleep_notifier_list
drivers/macintosh/windfarm_core.c wf_client_list
drivers/usb/core/notify.c usb_notifier_list
drivers/video/fbmem.c fb_notifier_list
kernel/cpu.c cpu_chain
kernel/module.c module_notify_list
kernel/profile.c munmap_notifier
kernel/profile.c task_exit_notifier
kernel/sys.c reboot_notifier_list
net/core/dev.c netdev_chain
net/decnet/dn_dev.c: dnaddr_chain
net/ipv4/devinet.c: inetaddr_chainIt's possible that some of these classifications are wrong. If they are,
please let us know or submit a patch to fix them. Note that any chain that
gets called very frequently should be atomic, because the rwsem read-locking
used for blocking chains is very likely to incur cache misses on SMP systems.
(However, if the chain's callout routines may sleep then the chain cannot be
atomic.)The patch set was written by Alan Stern and Chandra Seetharaman, incorporating
material written by Keith Owens and suggestions from Paul McKenney and Andrew
Morton.[jes@sgi.com: restructure the notifier chain initialization macros]
Signed-off-by: Alan Stern
Signed-off-by: Chandra Seetharaman
Signed-off-by: Jes Sorensen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Mar, 2006
1 commit
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Almost all users of the table addresses from the EFI system table want
physical addresses. So rather than doing the pa->va->pa conversion, just keep
physical addresses in struct efi.This fixes a DMI bug: the efi structure contained the physical SMBIOS address
on x86 but the virtual address on ia64, so dmi_scan_machine() used ioremap()
on a virtual address on ia64.This is essentially the same as an earlier patch by Matt Tolentino:
http://marc.theaimsgroup.com/?l=linux-kernel&m=112130292316281&w=2
except that this changes all table addresses, not just ACPI addresses.Matt's original patch was backed out because it caused MCAs on HP sx1000
systems. That problem is resolved by the ioremap() attribute checking added
for ia64.Signed-off-by: Bjorn Helgaas
Cc: Matt Domsch
Cc: "Tolentino, Matthew E"
Cc: "Brown, Len"
Cc: Andi Kleen
Acked-by: "Luck, Tony"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
23 Mar, 2006
1 commit
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Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.Signed-off-by: Arjan van de Ven
Signed-off-by: Ingo Molnar
Cc: Stephen Rothwell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
22 Mar, 2006
1 commit
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Do not use platform_device_register_simple() as it is going away, define
dcdbas_driver and implement ->probe() and ->remove() functions so manual
binding and unbinding will work with this driver.Also switch to using attribute_group when creating sysfs attributes and
make sure to check and handle errors; explicitely remove attributes when
detaching driver.Signed-off-by: Dmitry Torokhov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
10 Mar, 2006
1 commit
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smi_data_buf_free() references dcdbas_pdev when calling
dma_free_coherent(). In dcdbas_exit(), smi_data_buf_free() is called after
platform_device_unregister(dcdbas_pdev).This patch moves platform_device_unregister(dcdbas_pdev) after
smi_data_buf_free() in dcdbas_exit().Signed-off-by: Doug Warzecha
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
15 Jan, 2006
1 commit
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This fixes http://bugzilla.kernel.org/show_bug.cgi?id=5854
Root cause:
The dell_rbu driver creates entries in /sys/class/firmware/dell_rbu/ by
calling request_firmware_nowait (without hotplug ) this function inturn
starts a kernel thread which creates the entries in
/sys/class/firmware/dell_rbu/loading , data and the thread waits on the
user action to return control back to the callback fucntion of dell_rbu.
The thread calls wait_on_completion which puts it in a D state until the
user action happens. If there is no user action happening the load average
goes up as the thread D state is taken in to account. Also after
downloading the BIOS image the enrties go away momentarily but they are
recreated from the callback function in dell_rbu. This causes the thread
to get recreated causing the load average to permenently stay around 1.Fix:
The dell_rbu also creates the entry
/sys/devices/platform/dell_rbu/image_type at driver load time. The image
type by default is mono if required the user can echo packet to image_type
to make the BIOS update mechanism using packets. Also by echoing init in
to image_type the /sys/class/firmware/dell_rbu entries can be created.The driver code was changed to not create /sys/class/firmware/dell_rbu
entries during load time, and also to not create the above entries from the
callback function. The entries are only created by echoing init to
/sys/devices/platform/dell_rbu/image_type The user now needs to create the
entries to download the image monolithic or packet. This fixes the issue
since the kernel thread only is created when ever the user is ready to
download the BIOS image; this minimizes the life span of the kernel thread
and the load average goes back to normal.Signed off by Abhay Salunke
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 Jan, 2006
1 commit
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- Move capable() from sched.h to capability.h;
- Use where capable() is used
(in include/, block/, ipc/, kernel/, a few drivers/,
mm/, security/, & sound/;
many more drivers/ to go)Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
16 Dec, 2005
1 commit
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Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds
23 Nov, 2005
1 commit
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This driver only appears on IA32 & EM64T boxes.
Signed-off-by: Dave Jones
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
09 Nov, 2005
1 commit
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This patch removes almost all inclusions of linux/version.h. The 3
#defines are unused in most of the touched files.A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is
unfortunatly in linux/version.h.There are also lots of #ifdef for long obsolete kernels, this was not
touched. In a few places, the linux/version.h include was move to where
the LINUX_VERSION_CODE was used.quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'`
search pattern:
/UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).hSigned-off-by: Olaf Hering
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Nov, 2005
2 commits
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Signed-off-by: Deepak Saxena
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This patch has the changes to support the memory floor fix done in Dell
BIOS. The BIOS incase of packet update mechanism would not accept packet
placed in memory below a cretain address. This address is by default 128K
but can change. The driver now can accept the memory floor if the user
chooses to make it will try to allocate contiguous physical memory above
the memory floor by allocating a set of packets till a valid memory
allocation is made. All the allocates then are freed. This repeats for
everty packet.This patch was created by Michael E Brown and has been tested on 2.6.14-rc5
Signed-of-by: Michael E Brown
Signed-off-by: Abhay Salunke
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
31 Oct, 2005
3 commits
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Manual #include fixups for clashes - there may be some unnecessary
-
It's nasty to set random drivers to default m because people who just press
enter on make oldconfig get these. Remove the default mSigned-off-by: Andi Kleen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add CONFIG_X86_32 for i386. This allows selecting options that only apply
to 32-bit systems.(X86 && !X86_64) becomes X86_32
(X86 || X86_64) becomes X86Signed-off-by: Brian Gerst
Cc: Sam Ravnborg
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
30 Oct, 2005
1 commit
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Convert everyone who uses platform_bus_type to include
linux/platform_device.h.Signed-off-by: Russell King
Acked-by: Greg Kroah-Hartman
12 Oct, 2005
1 commit
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In the current dell_rbu code ver 2.0 the packet update mechanism makes the
user app dump every individual packet in to the driver.This adds in efficiency as every packet update makes the
/sys/class/firmware/dell_rbu/loading and data files to disappear and reappear
again. Thus the user app needs to wait for the files to reappear to dump
another packet. This slows down the packet update tremendously in case of
large number of packets. I am submitting a new patch for dell_rbu which will
change the way we do packet updates;In the new method the user app will create a new single file which has already
packetized the rbu image and all the packets are now staged in this file.This driver also creates a new entry in
/sys/devices/platform/dell_rbu/packet_size ; the user needs to echo the packet
size here before downloading the packet file.The user should do the following:
create one single file which has all the packets stacked together.
echo the packet size in to /sys/devices/platform/dell_rbu/packet_size.
echo 1 > /sys/class/firmware/dell_rbu/loading
cat the packetfile > /sys/class/firmware/dell_rbu/data
echo 0 > /sys/class/firmware/dell_rbu/loadingThe driver takes the file which came through /sys/class/firmware/dell_rbu/data
and takes chunks of paket_size data from it and place in contiguous memory.This makes packet update process very efficient and fast. As all the packet
update happens in one single operation. The user can still read back the
downloaded file from /sys/devices/platform/dell_rbu/data.Signed-off-by: Abhay Salunke
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
18 Sep, 2005
2 commits
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Whitespace standardisation.
Cc: Abhay Salunke
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
BUG fixes:
The driver used to allocate memory with spinlock held which has been
fixed in this patch.The driver was printing the entire buffer when it received a invalid
entry in image_type. The fix is to only print a warning message and not
the buffer.Usability enhancements:
It is possible that due to user error the /sys/class/firmware/dell_rbu
entries might be missing, this can happen if the user does the followingecho 1 > /sys/class/firmware/dell_rbu/loading
echo 0 > /sys/class/firmware/dell_rbu/loadingThis will make the entries in /sys/class/firmware/ to disappear and the
only way get them back was bby unloading and loading the driver.This patch makes the user recreate these entries by echoing init in to
image_type.This patch has been tested with Libsmbios and Dell OpenManage.
Signed-off-by: Abhay Salunke
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Sep, 2005
2 commits
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This patch adds the Dell Systems Management Base Driver with sysfs support.
This driver has been tested with Dell OpenManage.
Signed-off-by: Doug Warzecha
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Remote BIOS Update driver for updating BIOS images on Dell servers and
desktops. See dell_rbu.txt for details.Signed-off-by: Abhay Salunke
Cc: Greg KH
Signed-off-by: Jens Axboe
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
28 Jul, 2005
1 commit
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If the PCDP supplies parity, use it (only none/even/odd supported), and
don't append parity/stop bit arguments unless baud is present.Signed-off-by: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
14 Jul, 2005
1 commit
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Mark's patch added "attribute((packed))" for pcdp_uart, without
accounting for the fact that the structure definition _relied_ on
implicit padding by 6 bytes. Fix is to make the padding explicit.Signed-off-by: David Mosberger-Tang
Signed-off-by: Tony Luck
29 Jun, 2005
1 commit
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Resend 2 with changes per Bjorn Helgaas comments. Changes from original:
+ Change globals to vga_console_iobase/vga_console_membase and make them
unconditional.
+ Address style-related comments.Patch to extend the PCDP vga setup code to support PCI io/mem translations
for the legacy vga ioport and ram spaces on architectures (e.g. altix) which
need them.Summary of the changes:
drivers/firmware/pcdp.c
drivers/firmware/pcdp.h
-----------------------
+ add declaration for the spec-defined PCI interface struct (pcdp_if_pci)
as well as support macros.+ extend setup_vga_console() to know about pcdp_if_pci and add a couple of
globals to hold the io and mem translation offsets if present.arch/ia64/kernel/setup.c
------------------------
+ tweek early_console_setup() to allow multiple early console setup routines
to be called.include/asm-ia64/vga.h
----------------------
+ make VGA_MAP_MEM vga_console_membase awareSigned-off-by: Mark Maule
Signed-off-by: Tony Luck
26 Jun, 2005
1 commit
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Here's a patch with kfree() cleanups for drivers/firmware/efivars.c Patch
removes redundant NULL checks before kfree and also makes a small
whitespace cleanup - moves two statements on same line to separate lines.Signed-off-by: Jesper Juhl
Acked-by: Matt Domsch
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
24 Jun, 2005
1 commit
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The HCDP specs (i.e., PCDP revision < 3) allow zero as a default value for
baud rate and data bits. So if firmware doesn't supply them, let
early_serial_console_init() probe for them rather than telling it the baud
rate is zero.Also, update the URL for the PCDP spec.
Signed-off-by: Bjorn Helgaas
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
21 Jun, 2005
1 commit
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sysfs: fix the rest of the kernel so if an attribute doesn't
implement show or store method read/write will return
-EIO instead of 0 or -EINVAL or -EPERM.Signed-off-by: Dmitry Torokhov
Signed-off-by: Greg Kroah-Hartman
01 Jun, 2005
1 commit
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In file included from drivers/firmware/pcdp.c:18:
drivers/firmware/pcdp.h:48: error: field `addr' has incomplete type
drivers/firmware/pcdp.c: In function `setup_serial_console':
drivers/firmware/pcdp.c:27: error: `ACPI_ADR_SPACE_SYSTEM_MEMORY' undeclared (first use in this function)Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Apr, 2005
1 commit
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!