This patch implements PRUSS (Programmable Real-time Unit Sub System)
UIO driver which exports SOC resources associated with PRUSS like
I/O, memories and IRQs to user space. PRUSS is dual 32-bit RISC
processors which is efficient in performing embedded tasks that
require manipulation of packed memory mapped data structures and
handling system events that have tight real time constraints. This
driver is currently supported on Texas Instruments DA850, AM18xx and
OMAP-L138 devices.
For example, PRUSS runs firmware for real-time critical industrial
communication data link layer and communicates with application stack
running in user space via shared memory and IRQs.
Signed-off-by: NPratheesh Gangadhar <pratheesh@ti.com>
Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
Reviewed-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NHans J. Koch <hjk@hansjkoch.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch fixes a spelling mistake in Documentation/zh_CN/SubmittingPatches.
Signed-off-by: NXiaochen Wang <wangxiaochen0@gmail.com>
Signed-off-by: NHarry Wei <harryxiyou@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

DMI entries are arranged in memory back to back with no alignment
guarantees. This means that the struct dmi_header passed to callbacks
from dmi_walk() itself isn't byte aligned.  This causes problems on
architectures that expect aligned data, such as IA64.

The dmi-sysfs patchset introduced structure member accesses through this
passed in dmi_header.  Fix this by memcpy()ing the structures to
temporary locations on stack when inspecting/copying them.
Signed-off-by: NMike Waychison <mikew@google.com>
Tested-by: NTony Luck <tony.luck@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Document the new ABI added by the dmi-sysfs module.
Signed-off-by: NMike Waychison <mikew@google.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The System Event Log described by DMI entry type 15 may be backed by
either memory or may be indirectly accessed via an IO index/data
register pair.

In order to get read access to this log, expose it in the
"system_event_log" sub-directory of type 15 DMI entries, ie:
/sys/firmware/dmi/entries/15-0/system_event_log/raw_event_log.

This commit handles both IO accessed and memory access system event
logs.  OEM specific access and GPNV support is explicitly not handled
and we error out in the logs when we do not recognize the access method.
Signed-off-by: NMike Waychison <mikew@google.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The optional type 15 entry of the DMI table describes a non-volatile
storage-backed system event log.

In preparation for the next commit which exposes the raw bits of the
event log to userland, create a new sub-directory within the dmi entry
called "system_event_log" and expose attribute files that describe the
event log itself.

Currently, only a single child object is permitted within a
dmi_sysfs_entry.  We simply point at this child from the dmi_sysfs_entry
if it exists.
Signed-off-by: NMike Waychison <mikew@google.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Introduce a new module "dmi-sysfs" that exports the broken out entries
of the DMI table through sysfs.

Entries are enumerated via dmi_walk() on module load, and are populated
as kobjects rooted at /sys/firmware/dmi/entries.

Entries are named "<type>-<instance>", where:
   <type>	: is the type of the entry, and
   <instance>	: is the ordinal count within the DMI table of that
		  entry type.  This instance is used in lieu the DMI
		  entry's handle as no assurances are made by the kernel
		  that handles are unique.

All entries export the following attributes:
   length	: The length of the formatted portion of the entry
   handle	: The handle given to this entry by the firmware
   raw		: The raw bytes of the entire entry, including the
		  formatted portion, the unformatted (strings) portion,
		  and the two terminating nul characters.
   type		: The DMI entry type
   instance	: The ordinal instance of this entry given its type.
   position	: The position ordinal of the entry within the table in
		  its entirety.

Entries in dmi-sysfs are kobject backed members called "struct
dmi_sysfs_entry" and belong to dmi_kset.  They are threaded through
entry_list (protected by entry_list_lock) so that we can find them at
cleanup time.
Signed-off-by: NMike Waychison <mikew@google.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

In preparation for the upcoming commits, introduce the DMI entry types to
the headers.  These type names are based on those specified in the DMTF
SMBIOS specification version 2.7.1.
Signed-off-by: NMike Waychison <mikew@google.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch converts the macros for platform_{get,set}_drvdata to
static inline functions to add typechecking.
Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
Acked-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

I have translated linux-2.6/Documentation/magic-number.txt into Chinese.
Signed-off-by: NHarry Wei <harryxiyou@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

I have translated linux-2.6/Documentation/SubmittingChecklist into
Chinese. This patch can add translated file(SubmittingChecklist) under
linux-2.6/Documentation/zh_CN/.  Thanks.
Signed-off-by: NHarry Wei <harryxiyou@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

When __debugfs_remove() fails (because simple_rmdir() fails e.g. when a
directory is not empty), we must not decrement use count of the filesystem
as nothing was in fact deleted.

This fixes use after free caused by debugfs in some cases.
Signed-off-by: NJan Kara <jack@suse.cz>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

When CONFIG_HOTPLUG is not enabled, the inline function add_uevent_var()
needs to have its __attribute__ before the function name/parameters,
otherwise there are syntax errors.

linux-next-20110207/include/linux/kobject.h:232: error: expected ',' or ';' before '{' token
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

TI shared transport driver previously intended to expose rfkill
entries for each of the protocol gpio that the chip would have.
However now in case such gpios exist, which requires to be enabled
for a specific protocol, the responsibility lay on protocol driver.
This patch removes the request/free of multiple gpios, rfkill struct
references and also removes the chip_toggle function.
Signed-off-by: NPavan Savoy <pavan_savoy@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Where file-transfer stops/pauses in between, is
result of a HCI-LL anamoly in ST LL driver.
ST LL did not copy the contents of WaitQ into the TxQ, when a WAKEUP_IND
collision happened.
Make also sure, that the copying mechanism is safe, by wrapping it around
spin locks inside st_int_recv().
This was easily reproduced when the sleep timeout was reduced to 100ms
for HCI-LL.
Signed-off-by: NPavan Savoy <pavan_savoy@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

To fasten the process of firmware download, the chip allows
disabling of the command complete event generation from host.
In these cases, only few very essential commands would have
the command complete events and hence the wait associated with
them.

So now the driver would wait for a command complete event, only
when it comes across a wait event during firmware parsing.
This would also mean we need to skip not just the change baud
rate command but also the wait for it.
Signed-off-by: NPavan Savoy <pavan_savoy@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

pr_debug-ing few pr_infos from the data paths such as tty receive and
write so as to reduce debugs when we have higher logging levels enabled
undef VERBOSE in receive to avoid huge logs when log level 8 is set.
Signed-off-by: NPavan Savoy <pavan_savoy@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

set-right the error codes that the shared transport driver
returns.
Instead of magic numbers like -1, return relevant codes such as
ETIMEDOUT or EIO, EAGAIN when wait times out or uart write bytes don't
match expected value or when registration fails and needs to be
attempted again.
Signed-off-by: NPavan Savoy <pavan_savoy@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The communication between ST KIM and UIM was interfaced
over the /dev/rfkill device node.
Move the interface to a simpler less abusive sysfs entry
mechanism and document it in Documentation/ABI/testing/
under sysfs-platform-kim.

Shared transport driver would now read the UART details
originally received by bootloader or firmware as platform
data.
The data read will be shared over sysfs entries for the user-space
UIM or other n/w manager/plugins to be read, and assist the driver
by opening up the UART, setting the baud-rate and installing the
line discipline.
Signed-off-by: NPavan Savoy <pavan_savoy@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The architecture of shared transport had begun with individual
protocols like bluetooth, fm and gps telling the shared transport
what sort of protocol they are and then expecting the ST driver
to parse the incoming data from chip and forward data only
relevant to the protocol drivers.

This change would mean each protocol drivers would also send
information to ST driver as to how to intrepret their protocol
data coming out of the chip.
Signed-off-by: NPavan Savoy <pavan_savoy@ti.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

When i see the file linux-2.6.37/Documentation/zh_CN/SubmittingPatches ,
i find a mistake Chinese character in it. So i give a patch for
correcting this error.
Signed-off-by: NHarry Wei <harryxiyou@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NFerenc Wagner <wferi@niif.hu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The original macro worked only when applied to variables named 'dev'.
While this could have been fixed by simply renaming the macro argument,
a more type-safe replacement by an inline function is preferred.
Signed-off-by: NFerenc Wagner <wferi@niif.hu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

As a follow-on to the recent patches I submitted that allowed for a sysfs
memory block to span multiple memory sections, we should also update the
probe routine to online all of the memory sections in a memory block.  Without
this patch the current code will only add a single memory section.  I think
the probe routine should add all of the memory sections in the specified memory
block so that its behavior is in line with memory hotplug actions through
the sysfs interfaces.

This patch applies on top of the previous sysfs memory updates to allow
a sysfs directory o span multiple memory sections.

https://lkml.org/lkml/2011/1/20/245Signed-off-by: NNathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Define a version of memory_block_size_bytes for x86_64 when CONFIG_X86_UV is
set.
Signed-off-by: NRobin Holt <holt@sgi.com>
Signed-off-by: NJack Steiner <steiner@sgi.com>
Signed-off-by: NNathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Define a version of memory_block_size_bytes() for powerpc/pseries such that
a memory block spans an entire lmb.
Signed-off-by: NNathan Fontenot <nfont@austin.ibm.com>
Reviewed-by: NRobin Holt <holt@sgi.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Update the 'phys_index' property of a the memory_block struct to be
called start_section_nr, and add a end_section_nr property.  The
data tracked here is the same but the updated naming is more in line
with what is stored here, namely the first and last section number
that the memory block spans.

The names presented to userspace remain the same, phys_index for
start_section_nr and end_phys_index for end_section_nr, to avoid breaking
anything in userspace.

This also updates the node sysfs code to be aware of the new capability for
a memory block to contain multiple memory sections and be aware of the memory
block structure name changes (start_section_nr).  This requires an additional
parameter to unregister_mem_sect_under_nodes so that we know which memory
section of the memory block to unregister.
Signed-off-by: NNathan Fontenot <nfont@austin.ibm.com>
Reviewed-by: NRobin Holt <holt@sgi.com>
Reviewed-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Update the memory sysfs code such that each sysfs memory directory is now
considered a memory block that can span multiple memory sections per
memory block.  The default size of each memory block is SECTION_SIZE_BITS
to maintain the current behavior of having a single memory section per
memory block (i.e. one sysfs directory per memory section).

For architectures that want to have memory blocks span multiple
memory sections they need only define their own memory_block_size_bytes()
routine.

Update the memory hotplug documentation to reflect the new behaviors of
memory blocks reflected in sysfs.
Signed-off-by: NNathan Fontenot <nfont@austin.ibm.com>
Reviewed-by: NRobin Holt <holt@sgi.com>
Reviewed-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This fixes a build breakage caused by
8ba6ebf5 "Dynamic debug: Add more flags"

Cc: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Add ML7213 device information.
ML7213 is companion chip of Intel Atom E6xx series for IVI(In-Vehicle Infotainment).
ML7213 is completely compatible for Intel EG20T PCH.
Signed-off-by: NTomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NHarry Wei <harryxiyou@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

When encountering an error while executing the driver's ->add method, we
should cancel registration and unwind what we've regged so far. The low
level ->add methods do return proper error codes but those aren't looked
at in sysdev_driver_register(). Fix that by sharing the unregistering
code.
Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

debugfs can't be a module, so module_exit() is meaningless for it.
Signed-off-by: NWANG Cong <amwang@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Use gcc's __func__ instead of the function name.
Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Some place in firmware_class.c using "int uevent" define, but others use "bool
uevent".
This patch replace all int uevent define to bool.
Signed-off-by: NBob Liu <lliubbo@gmail.com>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Add flags that allow the user to specify via debugfs whether or not the
module name, function name, line number and/or thread ID have to be
included in the printed message.
Signed-off-by: NBart Van Assche <bvanassche@acm.org>
Cc: Greg Banks <gnb@fmeh.org>
Cc: Konrad Rzeszutek Wilk <konrad@darnok.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Several functions in <linux/kobject.h> accept printf-style arguments.
Some of these functions have been annotated with a format attribute
declaration while others have not been annotated. Add a format attribute
specification where it is missing.
Signed-off-by: NBart Van Assche <bvanassche@acm.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Since snprintf() may return a value that exceeds its second argument,
show() methods should use scnprintf() instead of snprintf(). This patch
updates the example in the sysfs documentation accordingly.
Signed-off-by: NBart Van Assche <bvanassche@acm.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Some time ago the way how sysfs stores a pointer to a kobject
corresponding to a directory was modified. This patch brings the
documentation again in sync with the implementation.
Signed-off-by: NBart Van Assche <bvanassche@acm.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Add text, courtesy of Kay Sievers, that provides some background on
device_rename() and why it shouldn't be used.
Signed-off-by: NTimur Tabi <timur@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>