Merge branch 'master' of /home/src/linux-2.6/
This commit is contained in:
commit
fab8d6ddf6
2
CREDITS
2
CREDITS
|
@ -3101,7 +3101,7 @@ S: Minto, NSW, 2566
|
|||
S: Australia
|
||||
|
||||
N: Stephen Smalley
|
||||
E: sds@epoch.ncsc.mil
|
||||
E: sds@tycho.nsa.gov
|
||||
D: portions of the Linux Security Module (LSM) framework and security modules
|
||||
|
||||
N: Chris Smith
|
||||
|
|
|
@ -90,16 +90,20 @@ at OLS. The resulting abundance of RCU patches was presented the
|
|||
following year [McKenney02a], and use of RCU in dcache was first
|
||||
described that same year [Linder02a].
|
||||
|
||||
Also in 2002, Michael [Michael02b,Michael02a] presented techniques
|
||||
that defer the destruction of data structures to simplify non-blocking
|
||||
synchronization (wait-free synchronization, lock-free synchronization,
|
||||
and obstruction-free synchronization are all examples of non-blocking
|
||||
synchronization). In particular, this technique eliminates locking,
|
||||
reduces contention, reduces memory latency for readers, and parallelizes
|
||||
pipeline stalls and memory latency for writers. However, these
|
||||
techniques still impose significant read-side overhead in the form of
|
||||
memory barriers. Researchers at Sun worked along similar lines in the
|
||||
same timeframe [HerlihyLM02,HerlihyLMS03].
|
||||
Also in 2002, Michael [Michael02b,Michael02a] presented "hazard-pointer"
|
||||
techniques that defer the destruction of data structures to simplify
|
||||
non-blocking synchronization (wait-free synchronization, lock-free
|
||||
synchronization, and obstruction-free synchronization are all examples of
|
||||
non-blocking synchronization). In particular, this technique eliminates
|
||||
locking, reduces contention, reduces memory latency for readers, and
|
||||
parallelizes pipeline stalls and memory latency for writers. However,
|
||||
these techniques still impose significant read-side overhead in the
|
||||
form of memory barriers. Researchers at Sun worked along similar lines
|
||||
in the same timeframe [HerlihyLM02,HerlihyLMS03]. These techniques
|
||||
can be thought of as inside-out reference counts, where the count is
|
||||
represented by the number of hazard pointers referencing a given data
|
||||
structure (rather than the more conventional counter field within the
|
||||
data structure itself).
|
||||
|
||||
In 2003, the K42 group described how RCU could be used to create
|
||||
hot-pluggable implementations of operating-system functions. Later that
|
||||
|
@ -113,7 +117,6 @@ number of operating-system kernels [PaulEdwardMcKenneyPhD], a paper
|
|||
describing how to make RCU safe for soft-realtime applications [Sarma04c],
|
||||
and a paper describing SELinux performance with RCU [JamesMorris04b].
|
||||
|
||||
|
||||
2005 has seen further adaptation of RCU to realtime use, permitting
|
||||
preemption of RCU realtime critical sections [PaulMcKenney05a,
|
||||
PaulMcKenney05b].
|
||||
|
|
|
@ -177,3 +177,9 @@ over a rather long period of time, but improvements are always welcome!
|
|||
|
||||
If you want to wait for some of these other things, you might
|
||||
instead need to use synchronize_irq() or synchronize_sched().
|
||||
|
||||
12. Any lock acquired by an RCU callback must be acquired elsewhere
|
||||
with irq disabled, e.g., via spin_lock_irqsave(). Failing to
|
||||
disable irq on a given acquisition of that lock will result in
|
||||
deadlock as soon as the RCU callback happens to interrupt that
|
||||
acquisition's critical section.
|
||||
|
|
|
@ -232,7 +232,7 @@ entry does not exist. For this to be helpful, the search function must
|
|||
return holding the per-entry spinlock, as ipc_lock() does in fact do.
|
||||
|
||||
Quick Quiz: Why does the search function need to return holding the
|
||||
per-entry lock for this deleted-flag technique to be helpful?
|
||||
per-entry lock for this deleted-flag technique to be helpful?
|
||||
|
||||
If the system-call audit module were to ever need to reject stale data,
|
||||
one way to accomplish this would be to add a "deleted" flag and a "lock"
|
||||
|
@ -275,8 +275,8 @@ flag under the spinlock as follows:
|
|||
{
|
||||
struct audit_entry *e;
|
||||
|
||||
/* Do not use the _rcu iterator here, since this is the only
|
||||
* deletion routine. */
|
||||
/* Do not need to use the _rcu iterator here, since this
|
||||
* is the only deletion routine. */
|
||||
list_for_each_entry(e, list, list) {
|
||||
if (!audit_compare_rule(rule, &e->rule)) {
|
||||
spin_lock(&e->lock);
|
||||
|
@ -304,9 +304,12 @@ function to reject newly deleted data.
|
|||
|
||||
|
||||
Answer to Quick Quiz
|
||||
Why does the search function need to return holding the per-entry
|
||||
lock for this deleted-flag technique to be helpful?
|
||||
|
||||
If the search function drops the per-entry lock before returning, then
|
||||
the caller will be processing stale data in any case. If it is really
|
||||
OK to be processing stale data, then you don't need a "deleted" flag.
|
||||
If processing stale data really is a problem, then you need to hold the
|
||||
per-entry lock across all of the code that uses the value looked up.
|
||||
If the search function drops the per-entry lock before returning,
|
||||
then the caller will be processing stale data in any case. If it
|
||||
is really OK to be processing stale data, then you don't need a
|
||||
"deleted" flag. If processing stale data really is a problem,
|
||||
then you need to hold the per-entry lock across all of the code
|
||||
that uses the value that was returned.
|
||||
|
|
|
@ -111,6 +111,11 @@ o What are all these files in this directory?
|
|||
|
||||
You are reading it!
|
||||
|
||||
rcuref.txt
|
||||
|
||||
Describes how to combine use of reference counts
|
||||
with RCU.
|
||||
|
||||
whatisRCU.txt
|
||||
|
||||
Overview of how the RCU implementation works. Along
|
||||
|
|
|
@ -1,7 +1,7 @@
|
|||
Refcounter design for elements of lists/arrays protected by RCU.
|
||||
Reference-count design for elements of lists/arrays protected by RCU.
|
||||
|
||||
Refcounting on elements of lists which are protected by traditional
|
||||
reader/writer spinlocks or semaphores are straight forward as in:
|
||||
Reference counting on elements of lists which are protected by traditional
|
||||
reader/writer spinlocks or semaphores are straightforward:
|
||||
|
||||
1. 2.
|
||||
add() search_and_reference()
|
||||
|
@ -28,12 +28,12 @@ release_referenced() delete()
|
|||
...
|
||||
}
|
||||
|
||||
If this list/array is made lock free using rcu as in changing the
|
||||
write_lock in add() and delete() to spin_lock and changing read_lock
|
||||
If this list/array is made lock free using RCU as in changing the
|
||||
write_lock() in add() and delete() to spin_lock and changing read_lock
|
||||
in search_and_reference to rcu_read_lock(), the atomic_get in
|
||||
search_and_reference could potentially hold reference to an element which
|
||||
has already been deleted from the list/array. atomic_inc_not_zero takes
|
||||
care of this scenario. search_and_reference should look as;
|
||||
has already been deleted from the list/array. Use atomic_inc_not_zero()
|
||||
in this scenario as follows:
|
||||
|
||||
1. 2.
|
||||
add() search_and_reference()
|
||||
|
@ -51,17 +51,16 @@ add() search_and_reference()
|
|||
release_referenced() delete()
|
||||
{ {
|
||||
... write_lock(&list_lock);
|
||||
atomic_dec(&el->rc, relfunc) ...
|
||||
... delete_element
|
||||
} write_unlock(&list_lock);
|
||||
...
|
||||
if (atomic_dec_and_test(&el->rc)) ...
|
||||
call_rcu(&el->head, el_free); delete_element
|
||||
... write_unlock(&list_lock);
|
||||
} ...
|
||||
if (atomic_dec_and_test(&el->rc))
|
||||
call_rcu(&el->head, el_free);
|
||||
...
|
||||
}
|
||||
|
||||
Sometimes, reference to the element need to be obtained in the
|
||||
update (write) stream. In such cases, atomic_inc_not_zero might be an
|
||||
overkill since the spinlock serialising list updates are held. atomic_inc
|
||||
is to be used in such cases.
|
||||
|
||||
Sometimes, a reference to the element needs to be obtained in the
|
||||
update (write) stream. In such cases, atomic_inc_not_zero() might be
|
||||
overkill, since we hold the update-side spinlock. One might instead
|
||||
use atomic_inc() in such cases.
|
||||
|
|
|
@ -200,10 +200,11 @@ rcu_assign_pointer()
|
|||
the new value, and also executes any memory-barrier instructions
|
||||
required for a given CPU architecture.
|
||||
|
||||
Perhaps more important, it serves to document which pointers
|
||||
are protected by RCU. That said, rcu_assign_pointer() is most
|
||||
frequently used indirectly, via the _rcu list-manipulation
|
||||
primitives such as list_add_rcu().
|
||||
Perhaps just as important, it serves to document (1) which
|
||||
pointers are protected by RCU and (2) the point at which a
|
||||
given structure becomes accessible to other CPUs. That said,
|
||||
rcu_assign_pointer() is most frequently used indirectly, via
|
||||
the _rcu list-manipulation primitives such as list_add_rcu().
|
||||
|
||||
rcu_dereference()
|
||||
|
||||
|
@ -258,9 +259,11 @@ rcu_dereference()
|
|||
locking.
|
||||
|
||||
As with rcu_assign_pointer(), an important function of
|
||||
rcu_dereference() is to document which pointers are protected
|
||||
by RCU. And, again like rcu_assign_pointer(), rcu_dereference()
|
||||
is typically used indirectly, via the _rcu list-manipulation
|
||||
rcu_dereference() is to document which pointers are protected by
|
||||
RCU, in particular, flagging a pointer that is subject to changing
|
||||
at any time, including immediately after the rcu_dereference().
|
||||
And, again like rcu_assign_pointer(), rcu_dereference() is
|
||||
typically used indirectly, via the _rcu list-manipulation
|
||||
primitives, such as list_for_each_entry_rcu().
|
||||
|
||||
The following diagram shows how each API communicates among the
|
||||
|
@ -327,7 +330,7 @@ for specialized uses, but are relatively uncommon.
|
|||
3. WHAT ARE SOME EXAMPLE USES OF CORE RCU API?
|
||||
|
||||
This section shows a simple use of the core RCU API to protect a
|
||||
global pointer to a dynamically allocated structure. More typical
|
||||
global pointer to a dynamically allocated structure. More-typical
|
||||
uses of RCU may be found in listRCU.txt, arrayRCU.txt, and NMI-RCU.txt.
|
||||
|
||||
struct foo {
|
||||
|
@ -410,6 +413,8 @@ o Use synchronize_rcu() -after- removing a data element from an
|
|||
data item.
|
||||
|
||||
See checklist.txt for additional rules to follow when using RCU.
|
||||
And again, more-typical uses of RCU may be found in listRCU.txt,
|
||||
arrayRCU.txt, and NMI-RCU.txt.
|
||||
|
||||
|
||||
4. WHAT IF MY UPDATING THREAD CANNOT BLOCK?
|
||||
|
@ -513,7 +518,7 @@ production-quality implementation, and see:
|
|||
|
||||
for papers describing the Linux kernel RCU implementation. The OLS'01
|
||||
and OLS'02 papers are a good introduction, and the dissertation provides
|
||||
more details on the current implementation.
|
||||
more details on the current implementation as of early 2004.
|
||||
|
||||
|
||||
5A. "TOY" IMPLEMENTATION #1: LOCKING
|
||||
|
@ -768,7 +773,6 @@ RCU pointer/list traversal:
|
|||
rcu_dereference
|
||||
list_for_each_rcu (to be deprecated in favor of
|
||||
list_for_each_entry_rcu)
|
||||
list_for_each_safe_rcu (deprecated, not used)
|
||||
list_for_each_entry_rcu
|
||||
list_for_each_continue_rcu (to be deprecated in favor of new
|
||||
list_for_each_entry_continue_rcu)
|
||||
|
@ -807,7 +811,8 @@ Quick Quiz #1: Why is this argument naive? How could a deadlock
|
|||
Answer: Consider the following sequence of events:
|
||||
|
||||
1. CPU 0 acquires some unrelated lock, call it
|
||||
"problematic_lock".
|
||||
"problematic_lock", disabling irq via
|
||||
spin_lock_irqsave().
|
||||
|
||||
2. CPU 1 enters synchronize_rcu(), write-acquiring
|
||||
rcu_gp_mutex.
|
||||
|
@ -894,7 +899,7 @@ Answer: Just as PREEMPT_RT permits preemption of spinlock
|
|||
ACKNOWLEDGEMENTS
|
||||
|
||||
My thanks to the people who helped make this human-readable, including
|
||||
Jon Walpole, Josh Triplett, Serge Hallyn, and Suzanne Wood.
|
||||
Jon Walpole, Josh Triplett, Serge Hallyn, Suzanne Wood, and Alan Stern.
|
||||
|
||||
|
||||
For more information, see http://www.rdrop.com/users/paulmck/RCU.
|
||||
|
|
|
@ -11,6 +11,8 @@
|
|||
Joel Schopp <jschopp@austin.ibm.com>
|
||||
ia64/x86_64:
|
||||
Ashok Raj <ashok.raj@intel.com>
|
||||
s390:
|
||||
Heiko Carstens <heiko.carstens@de.ibm.com>
|
||||
|
||||
Authors: Ashok Raj <ashok.raj@intel.com>
|
||||
Lots of feedback: Nathan Lynch <nathanl@austin.ibm.com>,
|
||||
|
@ -44,9 +46,28 @@ maxcpus=n Restrict boot time cpus to n. Say if you have 4 cpus, using
|
|||
maxcpus=2 will only boot 2. You can choose to bring the
|
||||
other cpus later online, read FAQ's for more info.
|
||||
|
||||
additional_cpus=n [x86_64 only] use this to limit hotpluggable cpus.
|
||||
This option sets
|
||||
cpu_possible_map = cpu_present_map + additional_cpus
|
||||
additional_cpus*=n Use this to limit hotpluggable cpus. This option sets
|
||||
cpu_possible_map = cpu_present_map + additional_cpus
|
||||
|
||||
(*) Option valid only for following architectures
|
||||
- x86_64, ia64, s390
|
||||
|
||||
ia64 and x86_64 use the number of disabled local apics in ACPI tables MADT
|
||||
to determine the number of potentially hot-pluggable cpus. The implementation
|
||||
should only rely on this to count the #of cpus, but *MUST* not rely on the
|
||||
apicid values in those tables for disabled apics. In the event BIOS doesnt
|
||||
mark such hot-pluggable cpus as disabled entries, one could use this
|
||||
parameter "additional_cpus=x" to represent those cpus in the cpu_possible_map.
|
||||
|
||||
s390 uses the number of cpus it detects at IPL time to also the number of bits
|
||||
in cpu_possible_map. If it is desired to add additional cpus at a later time
|
||||
the number should be specified using this option or the possible_cpus option.
|
||||
|
||||
possible_cpus=n [s390 only] use this to set hotpluggable cpus.
|
||||
This option sets possible_cpus bits in
|
||||
cpu_possible_map. Thus keeping the numbers of bits set
|
||||
constant even if the machine gets rebooted.
|
||||
This option overrides additional_cpus.
|
||||
|
||||
CPU maps and such
|
||||
-----------------
|
||||
|
|
41
Documentation/cputopology.txt
Normal file
41
Documentation/cputopology.txt
Normal file
|
@ -0,0 +1,41 @@
|
|||
|
||||
Export cpu topology info by sysfs. Items (attributes) are similar
|
||||
to /proc/cpuinfo.
|
||||
|
||||
1) /sys/devices/system/cpu/cpuX/topology/physical_package_id:
|
||||
represent the physical package id of cpu X;
|
||||
2) /sys/devices/system/cpu/cpuX/topology/core_id:
|
||||
represent the cpu core id to cpu X;
|
||||
3) /sys/devices/system/cpu/cpuX/topology/thread_siblings:
|
||||
represent the thread siblings to cpu X in the same core;
|
||||
4) /sys/devices/system/cpu/cpuX/topology/core_siblings:
|
||||
represent the thread siblings to cpu X in the same physical package;
|
||||
|
||||
To implement it in an architecture-neutral way, a new source file,
|
||||
driver/base/topology.c, is to export the 5 attributes.
|
||||
|
||||
If one architecture wants to support this feature, it just needs to
|
||||
implement 4 defines, typically in file include/asm-XXX/topology.h.
|
||||
The 4 defines are:
|
||||
#define topology_physical_package_id(cpu)
|
||||
#define topology_core_id(cpu)
|
||||
#define topology_thread_siblings(cpu)
|
||||
#define topology_core_siblings(cpu)
|
||||
|
||||
The type of **_id is int.
|
||||
The type of siblings is cpumask_t.
|
||||
|
||||
To be consistent on all architectures, the 4 attributes should have
|
||||
deafult values if their values are unavailable. Below is the rule.
|
||||
1) physical_package_id: If cpu has no physical package id, -1 is the
|
||||
default value.
|
||||
2) core_id: If cpu doesn't support multi-core, its core id is 0.
|
||||
3) thread_siblings: Just include itself, if the cpu doesn't support
|
||||
HT/multi-thread.
|
||||
4) core_siblings: Just include itself, if the cpu doesn't support
|
||||
multi-core and HT/Multi-thread.
|
||||
|
||||
So be careful when declaring the 4 defines in include/asm-XXX/topology.h.
|
||||
|
||||
If an attribute isn't defined on an architecture, it won't be exported.
|
||||
|
|
@ -1,50 +1,43 @@
|
|||
The Linux Kernel Device Model
|
||||
|
||||
Patrick Mochel <mochel@osdl.org>
|
||||
Patrick Mochel <mochel@digitalimplant.org>
|
||||
|
||||
26 August 2002
|
||||
Drafted 26 August 2002
|
||||
Updated 31 January 2006
|
||||
|
||||
|
||||
Overview
|
||||
~~~~~~~~
|
||||
|
||||
This driver model is a unification of all the current, disparate driver models
|
||||
that are currently in the kernel. It is intended to augment the
|
||||
The Linux Kernel Driver Model is a unification of all the disparate driver
|
||||
models that were previously used in the kernel. It is intended to augment the
|
||||
bus-specific drivers for bridges and devices by consolidating a set of data
|
||||
and operations into globally accessible data structures.
|
||||
|
||||
Current driver models implement some sort of tree-like structure (sometimes
|
||||
just a list) for the devices they control. But, there is no linkage between
|
||||
the different bus types.
|
||||
Traditional driver models implemented some sort of tree-like structure
|
||||
(sometimes just a list) for the devices they control. There wasn't any
|
||||
uniformity across the different bus types.
|
||||
|
||||
A common data structure can provide this linkage with little overhead: when a
|
||||
bus driver discovers a particular device, it can insert it into the global
|
||||
tree as well as its local tree. In fact, the local tree becomes just a subset
|
||||
of the global tree.
|
||||
|
||||
Common data fields can also be moved out of the local bus models into the
|
||||
global model. Some of the manipulations of these fields can also be
|
||||
consolidated. Most likely, manipulation functions will become a set
|
||||
of helper functions, which the bus drivers wrap around to include any
|
||||
bus-specific items.
|
||||
|
||||
The common device and bridge interface currently reflects the goals of the
|
||||
modern PC: namely the ability to do seamless Plug and Play, power management,
|
||||
and hot plug. (The model dictated by Intel and Microsoft (read: ACPI) ensures
|
||||
us that any device in the system may fit any of these criteria.)
|
||||
|
||||
In reality, not every bus will be able to support such operations. But, most
|
||||
buses will support a majority of those operations, and all future buses will.
|
||||
In other words, a bus that doesn't support an operation is the exception,
|
||||
instead of the other way around.
|
||||
The current driver model provides a comon, uniform data model for describing
|
||||
a bus and the devices that can appear under the bus. The unified bus
|
||||
model includes a set of common attributes which all busses carry, and a set
|
||||
of common callbacks, such as device discovery during bus probing, bus
|
||||
shutdown, bus power management, etc.
|
||||
|
||||
The common device and bridge interface reflects the goals of the modern
|
||||
computer: namely the ability to do seamless device "plug and play", power
|
||||
management, and hot plug. In particular, the model dictated by Intel and
|
||||
Microsoft (namely ACPI) ensures that almost every device on almost any bus
|
||||
on an x86-compatible system can work within this paradigm. Of course,
|
||||
not every bus is able to support all such operations, although most
|
||||
buses support a most of those operations.
|
||||
|
||||
|
||||
Downstream Access
|
||||
~~~~~~~~~~~~~~~~~
|
||||
|
||||
Common data fields have been moved out of individual bus layers into a common
|
||||
data structure. But, these fields must still be accessed by the bus layers,
|
||||
data structure. These fields must still be accessed by the bus layers,
|
||||
and sometimes by the device-specific drivers.
|
||||
|
||||
Other bus layers are encouraged to do what has been done for the PCI layer.
|
||||
|
@ -53,7 +46,7 @@ struct pci_dev now looks like this:
|
|||
struct pci_dev {
|
||||
...
|
||||
|
||||
struct device device;
|
||||
struct device dev;
|
||||
};
|
||||
|
||||
Note first that it is statically allocated. This means only one allocation on
|
||||
|
@ -64,9 +57,9 @@ the two.
|
|||
|
||||
The PCI bus layer freely accesses the fields of struct device. It knows about
|
||||
the structure of struct pci_dev, and it should know the structure of struct
|
||||
device. PCI devices that have been converted generally do not touch the fields
|
||||
of struct device. More precisely, device-specific drivers should not touch
|
||||
fields of struct device unless there is a strong compelling reason to do so.
|
||||
device. Individual PCI device drivers that have been converted the the current
|
||||
driver model generally do not and should not touch the fields of struct device,
|
||||
unless there is a strong compelling reason to do so.
|
||||
|
||||
This abstraction is prevention of unnecessary pain during transitional phases.
|
||||
If the name of the field changes or is removed, then every downstream driver
|
||||
|
|
|
@ -148,3 +148,35 @@ Why: The 8250 serial driver now has the ability to deal with the differences
|
|||
brother on Alchemy SOCs. The loss of features is not considered an
|
||||
issue.
|
||||
Who: Ralf Baechle <ralf@linux-mips.org>
|
||||
|
||||
---------------------------
|
||||
|
||||
What: Legacy /proc/pci interface (PCI_LEGACY_PROC)
|
||||
When: March 2006
|
||||
Why: deprecated since 2.5.53 in favor of lspci(8)
|
||||
Who: Adrian Bunk <bunk@stusta.de>
|
||||
|
||||
---------------------------
|
||||
|
||||
What: pci_module_init(driver)
|
||||
When: January 2007
|
||||
Why: Is replaced by pci_register_driver(pci_driver).
|
||||
Who: Richard Knutsson <ricknu-0@student.ltu.se> and Greg Kroah-Hartman <gregkh@suse.de>
|
||||
|
||||
---------------------------
|
||||
|
||||
What: I2C interface of the it87 driver
|
||||
When: January 2007
|
||||
Why: The ISA interface is faster and should be always available. The I2C
|
||||
probing is also known to cause trouble in at least one case (see
|
||||
bug #5889.)
|
||||
Who: Jean Delvare <khali@linux-fr.org>
|
||||
|
||||
---------------------------
|
||||
|
||||
What: mount/umount uevents
|
||||
When: February 2007
|
||||
Why: These events are not correct, and do not properly let userspace know
|
||||
when a file system has been mounted or unmounted. Userspace should
|
||||
poll the /proc/mounts file instead to detect this properly.
|
||||
Who: Greg Kroah-Hartman <gregkh@suse.de>
|
||||
|
|
|
@ -320,6 +320,7 @@ static struct config_item_type simple_children_type = {
|
|||
.ct_item_ops = &simple_children_item_ops,
|
||||
.ct_group_ops = &simple_children_group_ops,
|
||||
.ct_attrs = simple_children_attrs,
|
||||
.ct_owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static struct configfs_subsystem simple_children_subsys = {
|
||||
|
@ -403,6 +404,7 @@ static struct config_item_type group_children_type = {
|
|||
.ct_item_ops = &group_children_item_ops,
|
||||
.ct_group_ops = &group_children_group_ops,
|
||||
.ct_attrs = group_children_attrs,
|
||||
.ct_owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static struct configfs_subsystem group_children_subsys = {
|
||||
|
|
|
@ -35,6 +35,7 @@ Features which OCFS2 does not support yet:
|
|||
be cluster coherent.
|
||||
- quotas
|
||||
- cluster aware flock
|
||||
- cluster aware lockf
|
||||
- Directory change notification (F_NOTIFY)
|
||||
- Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease)
|
||||
- POSIX ACLs
|
||||
|
|
|
@ -79,15 +79,18 @@ that instance in a system with many cpus making intensive use of it.
|
|||
|
||||
|
||||
tmpfs has a mount option to set the NUMA memory allocation policy for
|
||||
all files in that instance:
|
||||
mpol=interleave prefers to allocate memory from each node in turn
|
||||
mpol=default prefers to allocate memory from the local node
|
||||
mpol=bind prefers to allocate from mpol_nodelist
|
||||
mpol=preferred prefers to allocate from first node in mpol_nodelist
|
||||
all files in that instance (if CONFIG_NUMA is enabled) - which can be
|
||||
adjusted on the fly via 'mount -o remount ...'
|
||||
|
||||
The following mount option is used in conjunction with mpol=interleave,
|
||||
mpol=bind or mpol=preferred:
|
||||
mpol_nodelist: nodelist suitable for parsing with nodelist_parse.
|
||||
mpol=default prefers to allocate memory from the local node
|
||||
mpol=prefer:Node prefers to allocate memory from the given Node
|
||||
mpol=bind:NodeList allocates memory only from nodes in NodeList
|
||||
mpol=interleave prefers to allocate from each node in turn
|
||||
mpol=interleave:NodeList allocates from each node of NodeList in turn
|
||||
|
||||
NodeList format is a comma-separated list of decimal numbers and ranges,
|
||||
a range being two hyphen-separated decimal numbers, the smallest and
|
||||
largest node numbers in the range. For example, mpol=bind:0-3,5,7,9-15
|
||||
|
||||
|
||||
To specify the initial root directory you can use the following mount
|
||||
|
@ -109,4 +112,4 @@ RAM/SWAP in 10240 inodes and it is only accessible by root.
|
|||
Author:
|
||||
Christoph Rohland <cr@sap.com>, 1.12.01
|
||||
Updated:
|
||||
Hugh Dickins <hugh@veritas.com>, 13 March 2005
|
||||
Hugh Dickins <hugh@veritas.com>, 19 February 2006
|
||||
|
|
|
@ -57,8 +57,6 @@ OPTIONS
|
|||
|
||||
port=n port to connect to on the remote server
|
||||
|
||||
timeout=n request timeouts (in ms) (default 60000ms)
|
||||
|
||||
noextend force legacy mode (no 9P2000.u semantics)
|
||||
|
||||
uid attempt to mount as a particular uid
|
||||
|
@ -74,10 +72,16 @@ OPTIONS
|
|||
RESOURCES
|
||||
=========
|
||||
|
||||
The Linux version of the 9P server, along with some client-side utilities
|
||||
can be found at http://v9fs.sf.net (along with a CVS repository of the
|
||||
development branch of this module). There are user and developer mailing
|
||||
lists here, as well as a bug-tracker.
|
||||
The Linux version of the 9P server is now maintained under the npfs project
|
||||
on sourceforge (http://sourceforge.net/projects/npfs).
|
||||
|
||||
There are user and developer mailing lists available through the v9fs project
|
||||
on sourceforge (http://sourceforge.net/projects/v9fs).
|
||||
|
||||
News and other information is maintained on SWiK (http://swik.net/v9fs).
|
||||
|
||||
Bug reports may be issued through the kernel.org bugzilla
|
||||
(http://bugzilla.kernel.org)
|
||||
|
||||
For more information on the Plan 9 Operating System check out
|
||||
http://plan9.bell-labs.com/plan9
|
||||
|
|
234
Documentation/fujitsu/frv/kernel-ABI.txt
Normal file
234
Documentation/fujitsu/frv/kernel-ABI.txt
Normal file
|
@ -0,0 +1,234 @@
|
|||
=================================
|
||||
INTERNAL KERNEL ABI FOR FR-V ARCH
|
||||
=================================
|
||||
|
||||
The internal FRV kernel ABI is not quite the same as the userspace ABI. A number of the registers
|
||||
are used for special purposed, and the ABI is not consistent between modules vs core, and MMU vs
|
||||
no-MMU.
|
||||
|
||||
This partly stems from the fact that FRV CPUs do not have a separate supervisor stack pointer, and
|
||||
most of them do not have any scratch registers, thus requiring at least one general purpose
|
||||
register to be clobbered in such an event. Also, within the kernel core, it is possible to simply
|
||||
jump or call directly between functions using a relative offset. This cannot be extended to modules
|
||||
for the displacement is likely to be too far. Thus in modules the address of a function to call
|
||||
must be calculated in a register and then used, requiring two extra instructions.
|
||||
|
||||
This document has the following sections:
|
||||
|
||||
(*) System call register ABI
|
||||
(*) CPU operating modes
|
||||
(*) Internal kernel-mode register ABI
|
||||
(*) Internal debug-mode register ABI
|
||||
(*) Virtual interrupt handling
|
||||
|
||||
|
||||
========================
|
||||
SYSTEM CALL REGISTER ABI
|
||||
========================
|
||||
|
||||
When a system call is made, the following registers are effective:
|
||||
|
||||
REGISTERS CALL RETURN
|
||||
=============== ======================= =======================
|
||||
GR7 System call number Preserved
|
||||
GR8 Syscall arg #1 Return value
|
||||
GR9-GR13 Syscall arg #2-6 Preserved
|
||||
|
||||
|
||||
===================
|
||||
CPU OPERATING MODES
|
||||
===================
|
||||
|
||||
The FR-V CPU has three basic operating modes. In order of increasing capability:
|
||||
|
||||
(1) User mode.
|
||||
|
||||
Basic userspace running mode.
|
||||
|
||||
(2) Kernel mode.
|
||||
|
||||
Normal kernel mode. There are many additional control registers available that may be
|
||||
accessed in this mode, in addition to all the stuff available to user mode. This has two
|
||||
submodes:
|
||||
|
||||
(a) Exceptions enabled (PSR.T == 1).
|
||||
|
||||
Exceptions will invoke the appropriate normal kernel mode handler. On entry to the
|
||||
handler, the PSR.T bit will be cleared.
|
||||
|
||||
(b) Exceptions disabled (PSR.T == 0).
|
||||
|
||||
No exceptions or interrupts may happen. Any mandatory exceptions will cause the CPU to
|
||||
halt unless the CPU is told to jump into debug mode instead.
|
||||
|
||||
(3) Debug mode.
|
||||
|
||||
No exceptions may happen in this mode. Memory protection and management exceptions will be
|
||||
flagged for later consideration, but the exception handler won't be invoked. Debugging traps
|
||||
such as hardware breakpoints and watchpoints will be ignored. This mode is entered only by
|
||||
debugging events obtained from the other two modes.
|
||||
|
||||
All kernel mode registers may be accessed, plus a few extra debugging specific registers.
|
||||
|
||||
|
||||
=================================
|
||||
INTERNAL KERNEL-MODE REGISTER ABI
|
||||
=================================
|
||||
|
||||
There are a number of permanent register assignments that are set up by entry.S in the exception
|
||||
prologue. Note that there is a complete set of exception prologues for each of user->kernel
|
||||
transition and kernel->kernel transition. There are also user->debug and kernel->debug mode
|
||||
transition prologues.
|
||||
|
||||
|
||||
REGISTER FLAVOUR USE
|
||||
=============== ======= ====================================================
|
||||
GR1 Supervisor stack pointer
|
||||
GR15 Current thread info pointer
|
||||
GR16 GP-Rel base register for small data
|
||||
GR28 Current exception frame pointer (__frame)
|
||||
GR29 Current task pointer (current)
|
||||
GR30 Destroyed by kernel mode entry
|
||||
GR31 NOMMU Destroyed by debug mode entry
|
||||
GR31 MMU Destroyed by TLB miss kernel mode entry
|
||||
CCR.ICC2 Virtual interrupt disablement tracking
|
||||
CCCR.CC3 Cleared by exception prologue (atomic op emulation)
|
||||
SCR0 MMU See mmu-layout.txt.
|
||||
SCR1 MMU See mmu-layout.txt.
|
||||
SCR2 MMU Save for EAR0 (destroyed by icache insns in debug mode)
|
||||
SCR3 MMU Save for GR31 during debug exceptions
|
||||
DAMR/IAMR NOMMU Fixed memory protection layout.
|
||||
DAMR/IAMR MMU See mmu-layout.txt.
|
||||
|
||||
|
||||
Certain registers are also used or modified across function calls:
|
||||
|
||||
REGISTER CALL RETURN
|
||||
=============== =============================== ===============================
|
||||
GR0 Fixed Zero -
|
||||
GR2 Function call frame pointer
|
||||
GR3 Special Preserved
|
||||
GR3-GR7 - Clobbered
|
||||
GR8 Function call arg #1 Return value (or clobbered)
|
||||
GR9 Function call arg #2 Return value MSW (or clobbered)
|
||||
GR10-GR13 Function call arg #3-#6 Clobbered
|
||||
GR14 - Clobbered
|
||||
GR15-GR16 Special Preserved
|
||||
GR17-GR27 - Preserved
|
||||
GR28-GR31 Special Only accessed explicitly
|
||||
LR Return address after CALL Clobbered
|
||||
CCR/CCCR - Mostly Clobbered
|
||||
|
||||
|
||||
================================
|
||||
INTERNAL DEBUG-MODE REGISTER ABI
|
||||
================================
|
||||
|
||||
This is the same as the kernel-mode register ABI for functions calls. The difference is that in
|
||||
debug-mode there's a different stack and a different exception frame. Almost all the global
|
||||
registers from kernel-mode (including the stack pointer) may be changed.
|
||||
|
||||
REGISTER FLAVOUR USE
|
||||
=============== ======= ====================================================
|
||||
GR1 Debug stack pointer
|
||||
GR16 GP-Rel base register for small data
|
||||
GR31 Current debug exception frame pointer (__debug_frame)
|
||||
SCR3 MMU Saved value of GR31
|
||||
|
||||
|
||||
Note that debug mode is able to interfere with the kernel's emulated atomic ops, so it must be
|
||||
exceedingly careful not to do any that would interact with the main kernel in this regard. Hence
|
||||
the debug mode code (gdbstub) is almost completely self-contained. The only external code used is
|
||||
the sprintf family of functions.
|
||||
|
||||
Futhermore, break.S is so complicated because single-step mode does not switch off on entry to an
|
||||
exception. That means unless manually disabled, single-stepping will blithely go on stepping into
|
||||
things like interrupts. See gdbstub.txt for more information.
|
||||
|
||||
|
||||
==========================
|
||||
VIRTUAL INTERRUPT HANDLING
|
||||
==========================
|
||||
|
||||
Because accesses to the PSR is so slow, and to disable interrupts we have to access it twice (once
|
||||
to read and once to write), we don't actually disable interrupts at all if we don't have to. What
|
||||
we do instead is use the ICC2 condition code flags to note virtual disablement, such that if we
|
||||
then do take an interrupt, we note the flag, really disable interrupts, set another flag and resume
|
||||
execution at the point the interrupt happened. Setting condition flags as a side effect of an
|
||||
arithmetic or logical instruction is really fast. This use of the ICC2 only occurs within the
|
||||
kernel - it does not affect userspace.
|
||||
|
||||
The flags we use are:
|
||||
|
||||
(*) CCR.ICC2.Z [Zero flag]
|
||||
|
||||
Set to virtually disable interrupts, clear when interrupts are virtually enabled. Can be
|
||||
modified by logical instructions without affecting the Carry flag.
|
||||
|
||||
(*) CCR.ICC2.C [Carry flag]
|
||||
|
||||
Clear to indicate hardware interrupts are really disabled, set otherwise.
|
||||
|
||||
|
||||
What happens is this:
|
||||
|
||||
(1) Normal kernel-mode operation.
|
||||
|
||||
ICC2.Z is 0, ICC2.C is 1.
|
||||
|
||||
(2) An interrupt occurs. The exception prologue examines ICC2.Z and determines that nothing needs
|
||||
doing. This is done simply with an unlikely BEQ instruction.
|
||||
|
||||
(3) The interrupts are disabled (local_irq_disable)
|
||||
|
||||
ICC2.Z is set to 1.
|
||||
|
||||
(4) If interrupts were then re-enabled (local_irq_enable):
|
||||
|
||||
ICC2.Z would be set to 0.
|
||||
|
||||
A TIHI #2 instruction (trap #2 if condition HI - Z==0 && C==0) would be used to trap if
|
||||
interrupts were now virtually enabled, but physically disabled - which they're not, so the
|
||||
trap isn't taken. The kernel would then be back to state (1).
|
||||
|
||||
(5) An interrupt occurs. The exception prologue examines ICC2.Z and determines that the interrupt
|
||||
shouldn't actually have happened. It jumps aside, and there disabled interrupts by setting
|
||||
PSR.PIL to 14 and then it clears ICC2.C.
|
||||
|
||||
(6) If interrupts were then saved and disabled again (local_irq_save):
|
||||
|
||||
ICC2.Z would be shifted into the save variable and masked off (giving a 1).
|
||||
|
||||
ICC2.Z would then be set to 1 (thus unchanged), and ICC2.C would be unaffected (ie: 0).
|
||||
|
||||
(7) If interrupts were then restored from state (6) (local_irq_restore):
|
||||
|
||||
ICC2.Z would be set to indicate the result of XOR'ing the saved value (ie: 1) with 1, which
|
||||
gives a result of 0 - thus leaving ICC2.Z set.
|
||||
|
||||
ICC2.C would remain unaffected (ie: 0).
|
||||
|
||||
A TIHI #2 instruction would be used to again assay the current state, but this would do
|
||||
nothing as Z==1.
|
||||
|
||||
(8) If interrupts were then enabled (local_irq_enable):
|
||||
|
||||
ICC2.Z would be cleared. ICC2.C would be left unaffected. Both flags would now be 0.
|
||||
|
||||
A TIHI #2 instruction again issued to assay the current state would then trap as both Z==0
|
||||
[interrupts virtually enabled] and C==0 [interrupts really disabled] would then be true.
|
||||
|
||||
(9) The trap #2 handler would simply enable hardware interrupts (set PSR.PIL to 0), set ICC2.C to
|
||||
1 and return.
|
||||
|
||||
(10) Immediately upon returning, the pending interrupt would be taken.
|
||||
|
||||
(11) The interrupt handler would take the path of actually processing the interrupt (ICC2.Z is
|
||||
clear, BEQ fails as per step (2)).
|
||||
|
||||
(12) The interrupt handler would then set ICC2.C to 1 since hardware interrupts are definitely
|
||||
enabled - or else the kernel wouldn't be here.
|
||||
|
||||
(13) On return from the interrupt handler, things would be back to state (1).
|
||||
|
||||
This trap (#2) is only available in kernel mode. In user mode it will result in SIGILL.
|
105
Documentation/hwmon/f71805f
Normal file
105
Documentation/hwmon/f71805f
Normal file
|
@ -0,0 +1,105 @@
|
|||
Kernel driver f71805f
|
||||
=====================
|
||||
|
||||
Supported chips:
|
||||
* Fintek F71805F/FG
|
||||
Prefix: 'f71805f'
|
||||
Addresses scanned: none, address read from Super I/O config space
|
||||
Datasheet: Provided by Fintek on request
|
||||
|
||||
Author: Jean Delvare <khali@linux-fr.org>
|
||||
|
||||
Thanks to Denis Kieft from Barracuda Networks for the donation of a
|
||||
test system (custom Jetway K8M8MS motherboard, with CPU and RAM) and
|
||||
for providing initial documentation.
|
||||
|
||||
Thanks to Kris Chen from Fintek for answering technical questions and
|
||||
providing additional documentation.
|
||||
|
||||
Thanks to Chris Lin from Jetway for providing wiring schematics and
|
||||
anwsering technical questions.
|
||||
|
||||
|
||||
Description
|
||||
-----------
|
||||
|
||||
The Fintek F71805F/FG Super I/O chip includes complete hardware monitoring
|
||||
capabilities. It can monitor up to 9 voltages (counting its own power
|
||||
source), 3 fans and 3 temperature sensors.
|
||||
|
||||
This chip also has fan controlling features, using either DC or PWM, in
|
||||
three different modes (one manual, two automatic). The driver doesn't
|
||||
support these features yet.
|
||||
|
||||
The driver assumes that no more than one chip is present, which seems
|
||||
reasonable.
|
||||
|
||||
|
||||
Voltage Monitoring
|
||||
------------------
|
||||
|
||||
Voltages are sampled by an 8-bit ADC with a LSB of 8 mV. The supported
|
||||
range is thus from 0 to 2.040 V. Voltage values outside of this range
|
||||
need external resistors. An exception is in0, which is used to monitor
|
||||
the chip's own power source (+3.3V), and is divided internally by a
|
||||
factor 2.
|
||||
|
||||
The two LSB of the voltage limit registers are not used (always 0), so
|
||||
you can only set the limits in steps of 32 mV (before scaling).
|
||||
|
||||
The wirings and resistor values suggested by Fintek are as follow:
|
||||
|
||||
pin expected
|
||||
name use R1 R2 divider raw val.
|
||||
|
||||
in0 VCC VCC3.3V int. int. 2.00 1.65 V
|
||||
in1 VIN1 VTT1.2V 10K - 1.00 1.20 V
|
||||
in2 VIN2 VRAM 100K 100K 2.00 ~1.25 V (1)
|
||||
in3 VIN3 VCHIPSET 47K 100K 1.47 2.24 V (2)
|
||||
in4 VIN4 VCC5V 200K 47K 5.25 0.95 V
|
||||
in5 VIN5 +12V 200K 20K 11.00 1.05 V
|
||||
in6 VIN6 VCC1.5V 10K - 1.00 1.50 V
|
||||
in7 VIN7 VCORE 10K - 1.00 ~1.40 V (1)
|
||||
in8 VIN8 VSB5V 200K 47K 1.00 0.95 V
|
||||
|
||||
(1) Depends on your hardware setup.
|
||||
(2) Obviously not correct, swapping R1 and R2 would make more sense.
|
||||
|
||||
These values can be used as hints at best, as motherboard manufacturers
|
||||
are free to use a completely different setup. As a matter of fact, the
|
||||
Jetway K8M8MS uses a significantly different setup. You will have to
|
||||
find out documentation about your own motherboard, and edit sensors.conf
|
||||
accordingly.
|
||||
|
||||
Each voltage measured has associated low and high limits, each of which
|
||||
triggers an alarm when crossed.
|
||||
|
||||
|
||||
Fan Monitoring
|
||||
--------------
|
||||
|
||||
Fan rotation speeds are reported as 12-bit values from a gated clock
|
||||
signal. Speeds down to 366 RPM can be measured. There is no theoretical
|
||||
high limit, but values over 6000 RPM seem to cause problem. The effective
|
||||
resolution is much lower than you would expect, the step between different
|
||||
register values being 10 rather than 1.
|
||||
|
||||
The chip assumes 2 pulse-per-revolution fans.
|
||||
|
||||
An alarm is triggered if the rotation speed drops below a programmable
|
||||
limit or is too low to be measured.
|
||||
|
||||
|
||||
Temperature Monitoring
|
||||
----------------------
|
||||
|
||||
Temperatures are reported in degrees Celsius. Each temperature measured
|
||||
has a high limit, those crossing triggers an alarm. There is an associated
|
||||
hysteresis value, below which the temperature has to drop before the
|
||||
alarm is cleared.
|
||||
|
||||
All temperature channels are external, there is no embedded temperature
|
||||
sensor. Each channel can be used for connecting either a thermal diode
|
||||
or a thermistor. The driver reports the currently selected mode, but
|
||||
doesn't allow changing it. In theory, the BIOS should have configured
|
||||
everything properly.
|
|
@ -9,7 +9,7 @@ Supported chips:
|
|||
http://www.ite.com.tw/
|
||||
* IT8712F
|
||||
Prefix: 'it8712'
|
||||
Addresses scanned: I2C 0x28 - 0x2f
|
||||
Addresses scanned: I2C 0x2d
|
||||
from Super I/O config space (8 I/O ports)
|
||||
Datasheet: Publicly available at the ITE website
|
||||
http://www.ite.com.tw/
|
||||
|
|
|
@ -179,11 +179,12 @@ temp[1-*]_auto_point[1-*]_temp_hyst
|
|||
****************
|
||||
|
||||
temp[1-3]_type Sensor type selection.
|
||||
Integers 1, 2, 3 or thermistor Beta value (3435)
|
||||
Integers 1 to 4 or thermistor Beta value (typically 3435)
|
||||
Read/Write.
|
||||
1: PII/Celeron Diode
|
||||
2: 3904 transistor
|
||||
3: thermal diode
|
||||
4: thermistor (default/unknown Beta)
|
||||
Not all types are supported by all chips
|
||||
|
||||
temp[1-4]_max Temperature max value.
|
||||
|
@ -261,6 +262,21 @@ alarms Alarm bitmask.
|
|||
of individual bits.
|
||||
Bits are defined in kernel/include/sensors.h.
|
||||
|
||||
alarms_in Alarm bitmask relative to in (voltage) channels
|
||||
Read only
|
||||
A '1' bit means an alarm, LSB corresponds to in0 and so on
|
||||
Prefered to 'alarms' for newer chips
|
||||
|
||||
alarms_fan Alarm bitmask relative to fan channels
|
||||
Read only
|
||||
A '1' bit means an alarm, LSB corresponds to fan1 and so on
|
||||
Prefered to 'alarms' for newer chips
|
||||
|
||||
alarms_temp Alarm bitmask relative to temp (temperature) channels
|
||||
Read only
|
||||
A '1' bit means an alarm, LSB corresponds to temp1 and so on
|
||||
Prefered to 'alarms' for newer chips
|
||||
|
||||
beep_enable Beep/interrupt enable
|
||||
0 to disable.
|
||||
1 to enable.
|
||||
|
|
|
@ -36,6 +36,10 @@ Module Parameters
|
|||
(default is 1)
|
||||
Use 'init=0' to bypass initializing the chip.
|
||||
Try this if your computer crashes when you load the module.
|
||||
* reset: int
|
||||
(default is 0)
|
||||
The driver used to reset the chip on load, but does no more. Use
|
||||
'reset=1' to restore the old behavior. Report if you need to do this.
|
||||
|
||||
Description
|
||||
-----------
|
||||
|
|
|
@ -7,7 +7,7 @@ Supported adapters:
|
|||
Any combination of these host bridges:
|
||||
645, 645DX (aka 646), 648, 650, 651, 655, 735, 745, 746
|
||||
and these south bridges:
|
||||
961, 962, 963(L)
|
||||
961, 962, 963(L)
|
||||
|
||||
Author: Mark M. Hoffman <mhoffman@lightlink.com>
|
||||
|
||||
|
@ -29,7 +29,7 @@ The command "lspci" as root should produce something like these lines:
|
|||
|
||||
or perhaps this...
|
||||
|
||||
00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0645
|
||||
00:00.0 Host bridge: Silicon Integrated Systems [SiS]: Unknown device 0645
|
||||
00:02.0 ISA bridge: Silicon Integrated Systems [SiS]: Unknown device 0961
|
||||
00:02.1 SMBus: Silicon Integrated Systems [SiS]: Unknown device 0016
|
||||
|
|
@ -45,10 +45,10 @@ How to extract the documentation
|
|||
|
||||
If you just want to read the ready-made books on the various
|
||||
subsystems (see Documentation/DocBook/*.tmpl), just type 'make
|
||||
psdocs', or 'make pdfdocs', or 'make htmldocs', depending on your
|
||||
preference. If you would rather read a different format, you can type
|
||||
'make sgmldocs' and then use DocBook tools to convert
|
||||
Documentation/DocBook/*.sgml to a format of your choice (for example,
|
||||
psdocs', or 'make pdfdocs', or 'make htmldocs', depending on your
|
||||
preference. If you would rather read a different format, you can type
|
||||
'make sgmldocs' and then use DocBook tools to convert
|
||||
Documentation/DocBook/*.sgml to a format of your choice (for example,
|
||||
'db2html ...' if 'make htmldocs' was not defined).
|
||||
|
||||
If you want to see man pages instead, you can do this:
|
||||
|
@ -124,6 +124,36 @@ patterns, which are highlighted appropriately.
|
|||
Take a look around the source tree for examples.
|
||||
|
||||
|
||||
kernel-doc for structs, unions, enums, and typedefs
|
||||
---------------------------------------------------
|
||||
|
||||
Beside functions you can also write documentation for structs, unions,
|
||||
enums and typedefs. Instead of the function name you must write the name
|
||||
of the declaration; the struct/union/enum/typedef must always precede
|
||||
the name. Nesting of declarations is not supported.
|
||||
Use the argument mechanism to document members or constants.
|
||||
|
||||
Inside a struct description, you can use the "private:" and "public:"
|
||||
comment tags. Structure fields that are inside a "private:" area
|
||||
are not listed in the generated output documentation.
|
||||
|
||||
Example:
|
||||
|
||||
/**
|
||||
* struct my_struct - short description
|
||||
* @a: first member
|
||||
* @b: second member
|
||||
*
|
||||
* Longer description
|
||||
*/
|
||||
struct my_struct {
|
||||
int a;
|
||||
int b;
|
||||
/* private: */
|
||||
int c;
|
||||
};
|
||||
|
||||
|
||||
How to make new SGML template files
|
||||
-----------------------------------
|
||||
|
||||
|
@ -147,4 +177,3 @@ documentation, in <filename>, for the functions listed.
|
|||
|
||||
Tim.
|
||||
*/ <twaugh@redhat.com>
|
||||
|
||||
|
|
|
@ -452,6 +452,11 @@ running once the system is up.
|
|||
|
||||
eata= [HW,SCSI]
|
||||
|
||||
ec_intr= [HW,ACPI] ACPI Embedded Controller interrupt mode
|
||||
Format: <int>
|
||||
0: polling mode
|
||||
non-0: interrupt mode (default)
|
||||
|
||||
eda= [HW,PS2]
|
||||
|
||||
edb= [HW,PS2]
|
||||
|
@ -1128,6 +1133,8 @@ running once the system is up.
|
|||
Mechanism 1.
|
||||
conf2 [IA-32] Force use of PCI Configuration
|
||||
Mechanism 2.
|
||||
nommconf [IA-32,X86_64] Disable use of MMCONFIG for PCI
|
||||
Configuration
|
||||
nosort [IA-32] Don't sort PCI devices according to
|
||||
order given by the PCI BIOS. This sorting is
|
||||
done to get a device order compatible with
|
||||
|
@ -1631,6 +1638,9 @@ running once the system is up.
|
|||
Format:
|
||||
<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]
|
||||
|
||||
norandmaps Don't use address space randomization
|
||||
Equivalent to echo 0 > /proc/sys/kernel/randomize_va_space
|
||||
|
||||
|
||||
______________________________________________________________________
|
||||
Changelog:
|
||||
|
|
|
@ -136,17 +136,20 @@ Kprobes, jprobes, and return probes are implemented on the following
|
|||
architectures:
|
||||
|
||||
- i386
|
||||
- x86_64 (AMD-64, E64MT)
|
||||
- x86_64 (AMD-64, EM64T)
|
||||
- ppc64
|
||||
- ia64 (Support for probes on certain instruction types is still in progress.)
|
||||
- ia64 (Does not support probes on instruction slot1.)
|
||||
- sparc64 (Return probes not yet implemented.)
|
||||
|
||||
3. Configuring Kprobes
|
||||
|
||||
When configuring the kernel using make menuconfig/xconfig/oldconfig,
|
||||
ensure that CONFIG_KPROBES is set to "y". Under "Kernel hacking",
|
||||
look for "Kprobes". You may have to enable "Kernel debugging"
|
||||
(CONFIG_DEBUG_KERNEL) before you can enable Kprobes.
|
||||
ensure that CONFIG_KPROBES is set to "y". Under "Instrumentation
|
||||
Support", look for "Kprobes".
|
||||
|
||||
So that you can load and unload Kprobes-based instrumentation modules,
|
||||
make sure "Loadable module support" (CONFIG_MODULES) and "Module
|
||||
unloading" (CONFIG_MODULE_UNLOAD) are set to "y".
|
||||
|
||||
You may also want to ensure that CONFIG_KALLSYMS and perhaps even
|
||||
CONFIG_KALLSYMS_ALL are set to "y", since kallsyms_lookup_name()
|
||||
|
@ -262,18 +265,18 @@ at any time after the probe has been registered.
|
|||
|
||||
5. Kprobes Features and Limitations
|
||||
|
||||
As of Linux v2.6.12, Kprobes allows multiple probes at the same
|
||||
address. Currently, however, there cannot be multiple jprobes on
|
||||
the same function at the same time.
|
||||
Kprobes allows multiple probes at the same address. Currently,
|
||||
however, there cannot be multiple jprobes on the same function at
|
||||
the same time.
|
||||
|
||||
In general, you can install a probe anywhere in the kernel.
|
||||
In particular, you can probe interrupt handlers. Known exceptions
|
||||
are discussed in this section.
|
||||
|
||||
For obvious reasons, it's a bad idea to install a probe in
|
||||
the code that implements Kprobes (mostly kernel/kprobes.c and
|
||||
arch/*/kernel/kprobes.c). A patch in the v2.6.13 timeframe instructs
|
||||
Kprobes to reject such requests.
|
||||
The register_*probe functions will return -EINVAL if you attempt
|
||||
to install a probe in the code that implements Kprobes (mostly
|
||||
kernel/kprobes.c and arch/*/kernel/kprobes.c, but also functions such
|
||||
as do_page_fault and notifier_call_chain).
|
||||
|
||||
If you install a probe in an inline-able function, Kprobes makes
|
||||
no attempt to chase down all inline instances of the function and
|
||||
|
@ -290,18 +293,14 @@ from the accidental ones. Don't drink and probe.
|
|||
|
||||
Kprobes makes no attempt to prevent probe handlers from stepping on
|
||||
each other -- e.g., probing printk() and then calling printk() from a
|
||||
probe handler. As of Linux v2.6.12, if a probe handler hits a probe,
|
||||
that second probe's handlers won't be run in that instance.
|
||||
probe handler. If a probe handler hits a probe, that second probe's
|
||||
handlers won't be run in that instance, and the kprobe.nmissed member
|
||||
of the second probe will be incremented.
|
||||
|
||||
In Linux v2.6.12 and previous versions, Kprobes' data structures are
|
||||
protected by a single lock that is held during probe registration and
|
||||
unregistration and while handlers are run. Thus, no two handlers
|
||||
can run simultaneously. To improve scalability on SMP systems,
|
||||
this restriction will probably be removed soon, in which case
|
||||
multiple handlers (or multiple instances of the same handler) may
|
||||
run concurrently on different CPUs. Code your handlers accordingly.
|
||||
As of Linux v2.6.15-rc1, multiple handlers (or multiple instances of
|
||||
the same handler) may run concurrently on different CPUs.
|
||||
|
||||
Kprobes does not use semaphores or allocate memory except during
|
||||
Kprobes does not use mutexes or allocate memory except during
|
||||
registration and unregistration.
|
||||
|
||||
Probe handlers are run with preemption disabled. Depending on the
|
||||
|
@ -316,11 +315,18 @@ address instead of the real return address for kretprobed functions.
|
|||
(As far as we can tell, __builtin_return_address() is used only
|
||||
for instrumentation and error reporting.)
|
||||
|
||||
If the number of times a function is called does not match the
|
||||
number of times it returns, registering a return probe on that
|
||||
function may produce undesirable results. We have the do_exit()
|
||||
and do_execve() cases covered. do_fork() is not an issue. We're
|
||||
unaware of other specific cases where this could be a problem.
|
||||
If the number of times a function is called does not match the number
|
||||
of times it returns, registering a return probe on that function may
|
||||
produce undesirable results. We have the do_exit() case covered.
|
||||
do_execve() and do_fork() are not an issue. We're unaware of other
|
||||
specific cases where this could be a problem.
|
||||
|
||||
If, upon entry to or exit from a function, the CPU is running on
|
||||
a stack other than that of the current task, registering a return
|
||||
probe on that function may produce undesirable results. For this
|
||||
reason, Kprobes doesn't support return probes (or kprobes or jprobes)
|
||||
on the x86_64 version of __switch_to(); the registration functions
|
||||
return -EINVAL.
|
||||
|
||||
6. Probe Overhead
|
||||
|
||||
|
@ -347,14 +353,12 @@ k = 0.77 usec; j = 1.31; r = 1.26; kr = 1.45; jr = 1.99
|
|||
|
||||
7. TODO
|
||||
|
||||
a. SystemTap (http://sourceware.org/systemtap): Work in progress
|
||||
to provide a simplified programming interface for probe-based
|
||||
instrumentation.
|
||||
b. Improved SMP scalability: Currently, work is in progress to handle
|
||||
multiple kprobes in parallel.
|
||||
c. Kernel return probes for sparc64.
|
||||
d. Support for other architectures.
|
||||
e. User-space probes.
|
||||
a. SystemTap (http://sourceware.org/systemtap): Provides a simplified
|
||||
programming interface for probe-based instrumentation. Try it out.
|
||||
b. Kernel return probes for sparc64.
|
||||
c. Support for other architectures.
|
||||
d. User-space probes.
|
||||
e. Watchpoint probes (which fire on data references).
|
||||
|
||||
8. Kprobes Example
|
||||
|
||||
|
@ -411,8 +415,7 @@ int init_module(void)
|
|||
printk("Couldn't find %s to plant kprobe\n", "do_fork");
|
||||
return -1;
|
||||
}
|
||||
ret = register_kprobe(&kp);
|
||||
if (ret < 0) {
|
||||
if ((ret = register_kprobe(&kp) < 0)) {
|
||||
printk("register_kprobe failed, returned %d\n", ret);
|
||||
return -1;
|
||||
}
|
||||
|
|
|
@ -95,11 +95,13 @@ CONFIG_BLK_DEV_IDEDMA_PCI=y
|
|||
CONFIG_IDEDMA_PCI_AUTO=y
|
||||
CONFIG_BLK_DEV_IDE_AU1XXX=y
|
||||
CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA=y
|
||||
CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON=y
|
||||
CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ=128
|
||||
CONFIG_BLK_DEV_IDEDMA=y
|
||||
CONFIG_IDEDMA_AUTO=y
|
||||
|
||||
Also define 'IDE_AU1XXX_BURSTMODE' in 'drivers/ide/mips/au1xxx-ide.c' to enable
|
||||
the burst support on DBDMA controller.
|
||||
|
||||
If the used system need the USB support enable the following kernel configs for
|
||||
high IDE to USB throughput.
|
||||
|
||||
|
@ -115,6 +117,8 @@ CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ=128
|
|||
CONFIG_BLK_DEV_IDEDMA=y
|
||||
CONFIG_IDEDMA_AUTO=y
|
||||
|
||||
Also undefine 'IDE_AU1XXX_BURSTMODE' in 'drivers/ide/mips/au1xxx-ide.c' to
|
||||
disable the burst support on DBDMA controller.
|
||||
|
||||
ADD NEW HARD DISC TO WHITE OR BLACK LIST
|
||||
----------------------------------------
|
||||
|
|
|
@ -427,6 +427,23 @@ icmp_ignore_bogus_error_responses - BOOLEAN
|
|||
will avoid log file clutter.
|
||||
Default: FALSE
|
||||
|
||||
icmp_errors_use_inbound_ifaddr - BOOLEAN
|
||||
|
||||
If zero, icmp error messages are sent with the primary address of
|
||||
the exiting interface.
|
||||
|
||||
If non-zero, the message will be sent with the primary address of
|
||||
the interface that received the packet that caused the icmp error.
|
||||
This is the behaviour network many administrators will expect from
|
||||
a router. And it can make debugging complicated network layouts
|
||||
much easier.
|
||||
|
||||
Note that if no primary address exists for the interface selected,
|
||||
then the primary address of the first non-loopback interface that
|
||||
has one will be used regarldess of this setting.
|
||||
|
||||
Default: 0
|
||||
|
||||
igmp_max_memberships - INTEGER
|
||||
Change the maximum number of multicast groups we can subscribe to.
|
||||
Default: 20
|
||||
|
|
|
@ -1068,7 +1068,7 @@ SYNOPSIS
|
|||
|
||||
struct parport_operations {
|
||||
...
|
||||
void (*write_status) (struct parport *port, unsigned char s);
|
||||
void (*write_control) (struct parport *port, unsigned char s);
|
||||
...
|
||||
};
|
||||
|
||||
|
@ -1097,9 +1097,9 @@ SYNOPSIS
|
|||
|
||||
struct parport_operations {
|
||||
...
|
||||
void (*frob_control) (struct parport *port,
|
||||
unsigned char mask,
|
||||
unsigned char val);
|
||||
unsigned char (*frob_control) (struct parport *port,
|
||||
unsigned char mask,
|
||||
unsigned char val);
|
||||
...
|
||||
};
|
||||
|
||||
|
|
|
@ -1,246 +1,396 @@
|
|||
|
||||
PCI Error Recovery
|
||||
------------------
|
||||
May 31, 2005
|
||||
February 2, 2006
|
||||
|
||||
Current document maintainer:
|
||||
Linas Vepstas <linas@austin.ibm.com>
|
||||
Current document maintainer:
|
||||
Linas Vepstas <linas@austin.ibm.com>
|
||||
|
||||
|
||||
Some PCI bus controllers are able to detect certain "hard" PCI errors
|
||||
on the bus, such as parity errors on the data and address busses, as
|
||||
well as SERR and PERR errors. These chipsets are then able to disable
|
||||
I/O to/from the affected device, so that, for example, a bad DMA
|
||||
address doesn't end up corrupting system memory. These same chipsets
|
||||
are also able to reset the affected PCI device, and return it to
|
||||
working condition. This document describes a generic API form
|
||||
performing error recovery.
|
||||
Many PCI bus controllers are able to detect a variety of hardware
|
||||
PCI errors on the bus, such as parity errors on the data and address
|
||||
busses, as well as SERR and PERR errors. Some of the more advanced
|
||||
chipsets are able to deal with these errors; these include PCI-E chipsets,
|
||||
and the PCI-host bridges found on IBM Power4 and Power5-based pSeries
|
||||
boxes. A typical action taken is to disconnect the affected device,
|
||||
halting all I/O to it. The goal of a disconnection is to avoid system
|
||||
corruption; for example, to halt system memory corruption due to DMA's
|
||||
to "wild" addresses. Typically, a reconnection mechanism is also
|
||||
offered, so that the affected PCI device(s) are reset and put back
|
||||
into working condition. The reset phase requires coordination
|
||||
between the affected device drivers and the PCI controller chip.
|
||||
This document describes a generic API for notifying device drivers
|
||||
of a bus disconnection, and then performing error recovery.
|
||||
This API is currently implemented in the 2.6.16 and later kernels.
|
||||
|
||||
The core idea is that after a PCI error has been detected, there must
|
||||
be a way for the kernel to coordinate with all affected device drivers
|
||||
so that the pci card can be made operational again, possibly after
|
||||
performing a full electrical #RST of the PCI card. The API below
|
||||
provides a generic API for device drivers to be notified of PCI
|
||||
errors, and to be notified of, and respond to, a reset sequence.
|
||||
Reporting and recovery is performed in several steps. First, when
|
||||
a PCI hardware error has resulted in a bus disconnect, that event
|
||||
is reported as soon as possible to all affected device drivers,
|
||||
including multiple instances of a device driver on multi-function
|
||||
cards. This allows device drivers to avoid deadlocking in spinloops,
|
||||
waiting for some i/o-space register to change, when it never will.
|
||||
It also gives the drivers a chance to defer incoming I/O as
|
||||
needed.
|
||||
|
||||
Preliminary sketch of API, cut-n-pasted-n-modified email from
|
||||
Ben Herrenschmidt, circa 5 april 2005
|
||||
Next, recovery is performed in several stages. Most of the complexity
|
||||
is forced by the need to handle multi-function devices, that is,
|
||||
devices that have multiple device drivers associated with them.
|
||||
In the first stage, each driver is allowed to indicate what type
|
||||
of reset it desires, the choices being a simple re-enabling of I/O
|
||||
or requesting a hard reset (a full electrical #RST of the PCI card).
|
||||
If any driver requests a full reset, that is what will be done.
|
||||
|
||||
After a full reset and/or a re-enabling of I/O, all drivers are
|
||||
again notified, so that they may then perform any device setup/config
|
||||
that may be required. After these have all completed, a final
|
||||
"resume normal operations" event is sent out.
|
||||
|
||||
The biggest reason for choosing a kernel-based implementation rather
|
||||
than a user-space implementation was the need to deal with bus
|
||||
disconnects of PCI devices attached to storage media, and, in particular,
|
||||
disconnects from devices holding the root file system. If the root
|
||||
file system is disconnected, a user-space mechanism would have to go
|
||||
through a large number of contortions to complete recovery. Almost all
|
||||
of the current Linux file systems are not tolerant of disconnection
|
||||
from/reconnection to their underlying block device. By contrast,
|
||||
bus errors are easy to manage in the device driver. Indeed, most
|
||||
device drivers already handle very similar recovery procedures;
|
||||
for example, the SCSI-generic layer already provides significant
|
||||
mechanisms for dealing with SCSI bus errors and SCSI bus resets.
|
||||
|
||||
|
||||
Detailed Design
|
||||
---------------
|
||||
Design and implementation details below, based on a chain of
|
||||
public email discussions with Ben Herrenschmidt, circa 5 April 2005.
|
||||
|
||||
The error recovery API support is exposed to the driver in the form of
|
||||
a structure of function pointers pointed to by a new field in struct
|
||||
pci_driver. The absence of this pointer in pci_driver denotes an
|
||||
"non-aware" driver, behaviour on these is platform dependant.
|
||||
Platforms like ppc64 can try to simulate pci hotplug remove/add.
|
||||
|
||||
The definition of "pci_error_token" is not covered here. It is based on
|
||||
Seto's work on the synchronous error detection. We still need to define
|
||||
functions for extracting infos out of an opaque error token. This is
|
||||
separate from this API.
|
||||
pci_driver. A driver that fails to provide the structure is "non-aware",
|
||||
and the actual recovery steps taken are platform dependent. The
|
||||
arch/powerpc implementation will simulate a PCI hotplug remove/add.
|
||||
|
||||
This structure has the form:
|
||||
|
||||
struct pci_error_handlers
|
||||
{
|
||||
int (*error_detected)(struct pci_dev *dev, pci_error_token error);
|
||||
int (*error_detected)(struct pci_dev *dev, enum pci_channel_state);
|
||||
int (*mmio_enabled)(struct pci_dev *dev);
|
||||
int (*resume)(struct pci_dev *dev);
|
||||
int (*link_reset)(struct pci_dev *dev);
|
||||
int (*slot_reset)(struct pci_dev *dev);
|
||||
void (*resume)(struct pci_dev *dev);
|
||||
};
|
||||
|
||||
A driver doesn't have to implement all of these callbacks. The
|
||||
only mandatory one is error_detected(). If a callback is not
|
||||
implemented, the corresponding feature is considered unsupported.
|
||||
For example, if mmio_enabled() and resume() aren't there, then the
|
||||
driver is assumed as not doing any direct recovery and requires
|
||||
The possible channel states are:
|
||||
enum pci_channel_state {
|
||||
pci_channel_io_normal, /* I/O channel is in normal state */
|
||||
pci_channel_io_frozen, /* I/O to channel is blocked */
|
||||
pci_channel_io_perm_failure, /* PCI card is dead */
|
||||
};
|
||||
|
||||
Possible return values are:
|
||||
enum pci_ers_result {
|
||||
PCI_ERS_RESULT_NONE, /* no result/none/not supported in device driver */
|
||||
PCI_ERS_RESULT_CAN_RECOVER, /* Device driver can recover without slot reset */
|
||||
PCI_ERS_RESULT_NEED_RESET, /* Device driver wants slot to be reset. */
|
||||
PCI_ERS_RESULT_DISCONNECT, /* Device has completely failed, is unrecoverable */
|
||||
PCI_ERS_RESULT_RECOVERED, /* Device driver is fully recovered and operational */
|
||||
};
|
||||
|
||||
A driver does not have to implement all of these callbacks; however,
|
||||
if it implements any, it must implement error_detected(). If a callback
|
||||
is not implemented, the corresponding feature is considered unsupported.
|
||||
For example, if mmio_enabled() and resume() aren't there, then it
|
||||
is assumed that the driver is not doing any direct recovery and requires
|
||||
a reset. If link_reset() is not implemented, the card is assumed as
|
||||
not caring about link resets, in which case, if recover is supported,
|
||||
the core can try recover (but not slot_reset() unless it really did
|
||||
reset the slot). If slot_reset() is not supported, link_reset() can
|
||||
be called instead on a slot reset.
|
||||
not care about link resets. Typically a driver will want to know about
|
||||
a slot_reset().
|
||||
|
||||
At first, the call will always be :
|
||||
The actual steps taken by a platform to recover from a PCI error
|
||||
event will be platform-dependent, but will follow the general
|
||||
sequence described below.
|
||||
|
||||
1) error_detected()
|
||||
STEP 0: Error Event
|
||||
-------------------
|
||||
PCI bus error is detect by the PCI hardware. On powerpc, the slot
|
||||
is isolated, in that all I/O is blocked: all reads return 0xffffffff,
|
||||
all writes are ignored.
|
||||
|
||||
Error detected. This is sent once after an error has been detected. At
|
||||
this point, the device might not be accessible anymore depending on the
|
||||
platform (the slot will be isolated on ppc64). The driver may already
|
||||
have "noticed" the error because of a failing IO, but this is the proper
|
||||
"synchronisation point", that is, it gives a chance to the driver to
|
||||
cleanup, waiting for pending stuff (timers, whatever, etc...) to
|
||||
complete; it can take semaphores, schedule, etc... everything but touch
|
||||
the device. Within this function and after it returns, the driver
|
||||
|
||||
STEP 1: Notification
|
||||
--------------------
|
||||
Platform calls the error_detected() callback on every instance of
|
||||
every driver affected by the error.
|
||||
|
||||
At this point, the device might not be accessible anymore, depending on
|
||||
the platform (the slot will be isolated on powerpc). The driver may
|
||||
already have "noticed" the error because of a failing I/O, but this
|
||||
is the proper "synchronization point", that is, it gives the driver
|
||||
a chance to cleanup, waiting for pending stuff (timers, whatever, etc...)
|
||||
to complete; it can take semaphores, schedule, etc... everything but
|
||||
touch the device. Within this function and after it returns, the driver
|
||||
shouldn't do any new IOs. Called in task context. This is sort of a
|
||||
"quiesce" point. See note about interrupts at the end of this doc.
|
||||
|
||||
Result codes:
|
||||
- PCIERR_RESULT_CAN_RECOVER:
|
||||
Driever returns this if it thinks it might be able to recover
|
||||
All drivers participating in this system must implement this call.
|
||||
The driver must return one of the following result codes:
|
||||
- PCI_ERS_RESULT_CAN_RECOVER:
|
||||
Driver returns this if it thinks it might be able to recover
|
||||
the HW by just banging IOs or if it wants to be given
|
||||
a chance to extract some diagnostic informations (see
|
||||
below).
|
||||
- PCIERR_RESULT_NEED_RESET:
|
||||
Driver returns this if it thinks it can't recover unless the
|
||||
slot is reset.
|
||||
- PCIERR_RESULT_DISCONNECT:
|
||||
Return this if driver thinks it won't recover at all,
|
||||
(this will detach the driver ? or just leave it
|
||||
dangling ? to be decided)
|
||||
a chance to extract some diagnostic information (see
|
||||
mmio_enable, below).
|
||||
- PCI_ERS_RESULT_NEED_RESET:
|
||||
Driver returns this if it can't recover without a hard
|
||||
slot reset.
|
||||
- PCI_ERS_RESULT_DISCONNECT:
|
||||
Driver returns this if it doesn't want to recover at all.
|
||||
|
||||
So at this point, we have called error_detected() for all drivers
|
||||
on the segment that had the error. On ppc64, the slot is isolated. What
|
||||
happens now typically depends on the result from the drivers. If all
|
||||
drivers on the segment/slot return PCIERR_RESULT_CAN_RECOVER, we would
|
||||
re-enable IOs on the slot (or do nothing special if the platform doesn't
|
||||
isolate slots) and call 2). If not and we can reset slots, we go to 4),
|
||||
if neither, we have a dead slot. If it's an hotplug slot, we might
|
||||
"simulate" reset by triggering HW unplug/replug though.
|
||||
The next step taken will depend on the result codes returned by the
|
||||
drivers.
|
||||
|
||||
>>> Current ppc64 implementation assumes that a device driver will
|
||||
>>> *not* schedule or semaphore in this routine; the current ppc64
|
||||
If all drivers on the segment/slot return PCI_ERS_RESULT_CAN_RECOVER,
|
||||
then the platform should re-enable IOs on the slot (or do nothing in
|
||||
particular, if the platform doesn't isolate slots), and recovery
|
||||
proceeds to STEP 2 (MMIO Enable).
|
||||
|
||||
If any driver requested a slot reset (by returning PCI_ERS_RESULT_NEED_RESET),
|
||||
then recovery proceeds to STEP 4 (Slot Reset).
|
||||
|
||||
If the platform is unable to recover the slot, the next step
|
||||
is STEP 6 (Permanent Failure).
|
||||
|
||||
>>> The current powerpc implementation assumes that a device driver will
|
||||
>>> *not* schedule or semaphore in this routine; the current powerpc
|
||||
>>> implementation uses one kernel thread to notify all devices;
|
||||
>>> thus, of one device sleeps/schedules, all devices are affected.
|
||||
>>> thus, if one device sleeps/schedules, all devices are affected.
|
||||
>>> Doing better requires complex multi-threaded logic in the error
|
||||
>>> recovery implementation (e.g. waiting for all notification threads
|
||||
>>> to "join" before proceeding with recovery.) This seems excessively
|
||||
>>> complex and not worth implementing.
|
||||
|
||||
>>> The current ppc64 implementation doesn't much care if the device
|
||||
>>> attempts i/o at this point, or not. I/O's will fail, returning
|
||||
>>> The current powerpc implementation doesn't much care if the device
|
||||
>>> attempts I/O at this point, or not. I/O's will fail, returning
|
||||
>>> a value of 0xff on read, and writes will be dropped. If the device
|
||||
>>> driver attempts more than 10K I/O's to a frozen adapter, it will
|
||||
>>> assume that the device driver has gone into an infinite loop, and
|
||||
>>> it will panic the the kernel.
|
||||
>>> it will panic the the kernel. There doesn't seem to be any other
|
||||
>>> way of stopping a device driver that insists on spinning on I/O.
|
||||
|
||||
2) mmio_enabled()
|
||||
STEP 2: MMIO Enabled
|
||||
-------------------
|
||||
The platform re-enables MMIO to the device (but typically not the
|
||||
DMA), and then calls the mmio_enabled() callback on all affected
|
||||
device drivers.
|
||||
|
||||
This is the "early recovery" call. IOs are allowed again, but DMA is
|
||||
This is the "early recovery" call. IOs are allowed again, but DMA is
|
||||
not (hrm... to be discussed, I prefer not), with some restrictions. This
|
||||
is NOT a callback for the driver to start operations again, only to
|
||||
peek/poke at the device, extract diagnostic information, if any, and
|
||||
eventually do things like trigger a device local reset or some such,
|
||||
but not restart operations. This is sent if all drivers on a segment
|
||||
agree that they can try to recover and no automatic link reset was
|
||||
performed by the HW. If the platform can't just re-enable IOs without
|
||||
a slot reset or a link reset, it doesn't call this callback and goes
|
||||
directly to 3) or 4). All IOs should be done _synchronously_ from
|
||||
within this callback, errors triggered by them will be returned via
|
||||
the normal pci_check_whatever() api, no new error_detected() callback
|
||||
will be issued due to an error happening here. However, such an error
|
||||
might cause IOs to be re-blocked for the whole segment, and thus
|
||||
invalidate the recovery that other devices on the same segment might
|
||||
have done, forcing the whole segment into one of the next states,
|
||||
that is link reset or slot reset.
|
||||
but not restart operations. This is callback is made if all drivers on
|
||||
a segment agree that they can try to recover and if no automatic link reset
|
||||
was performed by the HW. If the platform can't just re-enable IOs without
|
||||
a slot reset or a link reset, it wont call this callback, and instead
|
||||
will have gone directly to STEP 3 (Link Reset) or STEP 4 (Slot Reset)
|
||||
|
||||
Result codes:
|
||||
- PCIERR_RESULT_RECOVERED
|
||||
>>> The following is proposed; no platform implements this yet:
|
||||
>>> Proposal: All I/O's should be done _synchronously_ from within
|
||||
>>> this callback, errors triggered by them will be returned via
|
||||
>>> the normal pci_check_whatever() API, no new error_detected()
|
||||
>>> callback will be issued due to an error happening here. However,
|
||||
>>> such an error might cause IOs to be re-blocked for the whole
|
||||
>>> segment, and thus invalidate the recovery that other devices
|
||||
>>> on the same segment might have done, forcing the whole segment
|
||||
>>> into one of the next states, that is, link reset or slot reset.
|
||||
|
||||
The driver should return one of the following result codes:
|
||||
- PCI_ERS_RESULT_RECOVERED
|
||||
Driver returns this if it thinks the device is fully
|
||||
functionnal and thinks it is ready to start
|
||||
functional and thinks it is ready to start
|
||||
normal driver operations again. There is no
|
||||
guarantee that the driver will actually be
|
||||
allowed to proceed, as another driver on the
|
||||
same segment might have failed and thus triggered a
|
||||
slot reset on platforms that support it.
|
||||
|
||||
- PCIERR_RESULT_NEED_RESET
|
||||
- PCI_ERS_RESULT_NEED_RESET
|
||||
Driver returns this if it thinks the device is not
|
||||
recoverable in it's current state and it needs a slot
|
||||
reset to proceed.
|
||||
|
||||
- PCIERR_RESULT_DISCONNECT
|
||||
- PCI_ERS_RESULT_DISCONNECT
|
||||
Same as above. Total failure, no recovery even after
|
||||
reset driver dead. (To be defined more precisely)
|
||||
|
||||
>>> The current ppc64 implementation does not implement this callback.
|
||||
The next step taken depends on the results returned by the drivers.
|
||||
If all drivers returned PCI_ERS_RESULT_RECOVERED, then the platform
|
||||
proceeds to either STEP3 (Link Reset) or to STEP 5 (Resume Operations).
|
||||
|
||||
3) link_reset()
|
||||
If any driver returned PCI_ERS_RESULT_NEED_RESET, then the platform
|
||||
proceeds to STEP 4 (Slot Reset)
|
||||
|
||||
This is called after the link has been reset. This is typically
|
||||
a PCI Express specific state at this point and is done whenever a
|
||||
non-fatal error has been detected that can be "solved" by resetting
|
||||
the link. This call informs the driver of the reset and the driver
|
||||
should check if the device appears to be in working condition.
|
||||
This function acts a bit like 2) mmio_enabled(), in that the driver
|
||||
is not supposed to restart normal driver I/O operations right away.
|
||||
Instead, it should just "probe" the device to check it's recoverability
|
||||
status. If all is right, then the core will call resume() once all
|
||||
drivers have ack'd link_reset().
|
||||
>>> The current powerpc implementation does not implement this callback.
|
||||
|
||||
|
||||
STEP 3: Link Reset
|
||||
------------------
|
||||
The platform resets the link, and then calls the link_reset() callback
|
||||
on all affected device drivers. This is a PCI-Express specific state
|
||||
and is done whenever a non-fatal error has been detected that can be
|
||||
"solved" by resetting the link. This call informs the driver of the
|
||||
reset and the driver should check to see if the device appears to be
|
||||
in working condition.
|
||||
|
||||
The driver is not supposed to restart normal driver I/O operations
|
||||
at this point. It should limit itself to "probing" the device to
|
||||
check it's recoverability status. If all is right, then the platform
|
||||
will call resume() once all drivers have ack'd link_reset().
|
||||
|
||||
Result codes:
|
||||
(identical to mmio_enabled)
|
||||
(identical to STEP 3 (MMIO Enabled)
|
||||
|
||||
>>> The current ppc64 implementation does not implement this callback.
|
||||
The platform then proceeds to either STEP 4 (Slot Reset) or STEP 5
|
||||
(Resume Operations).
|
||||
|
||||
4) slot_reset()
|
||||
>>> The current powerpc implementation does not implement this callback.
|
||||
|
||||
This is called after the slot has been soft or hard reset by the
|
||||
platform. A soft reset consists of asserting the adapter #RST line
|
||||
and then restoring the PCI BARs and PCI configuration header. If the
|
||||
platform supports PCI hotplug, then it might instead perform a hard
|
||||
reset by toggling power on the slot off/on. This call gives drivers
|
||||
the chance to re-initialize the hardware (re-download firmware, etc.),
|
||||
but drivers shouldn't restart normal I/O processing operations at
|
||||
this point. (See note about interrupts; interrupts aren't guaranteed
|
||||
to be delivered until the resume() callback has been called). If all
|
||||
device drivers report success on this callback, the patform will call
|
||||
resume() to complete the error handling and let the driver restart
|
||||
normal I/O processing.
|
||||
|
||||
STEP 4: Slot Reset
|
||||
------------------
|
||||
The platform performs a soft or hard reset of the device, and then
|
||||
calls the slot_reset() callback.
|
||||
|
||||
A soft reset consists of asserting the adapter #RST line and then
|
||||
restoring the PCI BAR's and PCI configuration header to a state
|
||||
that is equivalent to what it would be after a fresh system
|
||||
power-on followed by power-on BIOS/system firmware initialization.
|
||||
If the platform supports PCI hotplug, then the reset might be
|
||||
performed by toggling the slot electrical power off/on.
|
||||
|
||||
It is important for the platform to restore the PCI config space
|
||||
to the "fresh poweron" state, rather than the "last state". After
|
||||
a slot reset, the device driver will almost always use its standard
|
||||
device initialization routines, and an unusual config space setup
|
||||
may result in hung devices, kernel panics, or silent data corruption.
|
||||
|
||||
This call gives drivers the chance to re-initialize the hardware
|
||||
(re-download firmware, etc.). At this point, the driver may assume
|
||||
that he card is in a fresh state and is fully functional. In
|
||||
particular, interrupt generation should work normally.
|
||||
|
||||
Drivers should not yet restart normal I/O processing operations
|
||||
at this point. If all device drivers report success on this
|
||||
callback, the platform will call resume() to complete the sequence,
|
||||
and let the driver restart normal I/O processing.
|
||||
|
||||
A driver can still return a critical failure for this function if
|
||||
it can't get the device operational after reset. If the platform
|
||||
previously tried a soft reset, it migh now try a hard reset (power
|
||||
previously tried a soft reset, it might now try a hard reset (power
|
||||
cycle) and then call slot_reset() again. It the device still can't
|
||||
be recovered, there is nothing more that can be done; the platform
|
||||
will typically report a "permanent failure" in such a case. The
|
||||
device will be considered "dead" in this case.
|
||||
|
||||
Drivers for multi-function cards will need to coordinate among
|
||||
themselves as to which driver instance will perform any "one-shot"
|
||||
or global device initialization. For example, the Symbios sym53cxx2
|
||||
driver performs device init only from PCI function 0:
|
||||
|
||||
+ if (PCI_FUNC(pdev->devfn) == 0)
|
||||
+ sym_reset_scsi_bus(np, 0);
|
||||
|
||||
Result codes:
|
||||
- PCIERR_RESULT_DISCONNECT
|
||||
- PCI_ERS_RESULT_DISCONNECT
|
||||
Same as above.
|
||||
|
||||
>>> The current ppc64 implementation does not try a power-cycle reset
|
||||
>>> if the driver returned PCIERR_RESULT_DISCONNECT. However, it should.
|
||||
Platform proceeds either to STEP 5 (Resume Operations) or STEP 6 (Permanent
|
||||
Failure).
|
||||
|
||||
5) resume()
|
||||
>>> The current powerpc implementation does not currently try a
|
||||
>>> power-cycle reset if the driver returned PCI_ERS_RESULT_DISCONNECT.
|
||||
>>> However, it probably should.
|
||||
|
||||
This is called if all drivers on the segment have returned
|
||||
PCIERR_RESULT_RECOVERED from one of the 3 prevous callbacks.
|
||||
That basically tells the driver to restart activity, tht everything
|
||||
is back and running. No result code is taken into account here. If
|
||||
a new error happens, it will restart a new error handling process.
|
||||
|
||||
That's it. I think this covers all the possibilities. The way those
|
||||
callbacks are called is platform policy. A platform with no slot reset
|
||||
capability for example may want to just "ignore" drivers that can't
|
||||
STEP 5: Resume Operations
|
||||
-------------------------
|
||||
The platform will call the resume() callback on all affected device
|
||||
drivers if all drivers on the segment have returned
|
||||
PCI_ERS_RESULT_RECOVERED from one of the 3 previous callbacks.
|
||||
The goal of this callback is to tell the driver to restart activity,
|
||||
that everything is back and running. This callback does not return
|
||||
a result code.
|
||||
|
||||
At this point, if a new error happens, the platform will restart
|
||||
a new error recovery sequence.
|
||||
|
||||
STEP 6: Permanent Failure
|
||||
-------------------------
|
||||
A "permanent failure" has occurred, and the platform cannot recover
|
||||
the device. The platform will call error_detected() with a
|
||||
pci_channel_state value of pci_channel_io_perm_failure.
|
||||
|
||||
The device driver should, at this point, assume the worst. It should
|
||||
cancel all pending I/O, refuse all new I/O, returning -EIO to
|
||||
higher layers. The device driver should then clean up all of its
|
||||
memory and remove itself from kernel operations, much as it would
|
||||
during system shutdown.
|
||||
|
||||
The platform will typically notify the system operator of the
|
||||
permanent failure in some way. If the device is hotplug-capable,
|
||||
the operator will probably want to remove and replace the device.
|
||||
Note, however, not all failures are truly "permanent". Some are
|
||||
caused by over-heating, some by a poorly seated card. Many
|
||||
PCI error events are caused by software bugs, e.g. DMA's to
|
||||
wild addresses or bogus split transactions due to programming
|
||||
errors. See the discussion in powerpc/eeh-pci-error-recovery.txt
|
||||
for additional detail on real-life experience of the causes of
|
||||
software errors.
|
||||
|
||||
|
||||
Conclusion; General Remarks
|
||||
---------------------------
|
||||
The way those callbacks are called is platform policy. A platform with
|
||||
no slot reset capability may want to just "ignore" drivers that can't
|
||||
recover (disconnect them) and try to let other cards on the same segment
|
||||
recover. Keep in mind that in most real life cases, though, there will
|
||||
be only one driver per segment.
|
||||
|
||||
Now, there is a note about interrupts. If you get an interrupt and your
|
||||
Now, a note about interrupts. If you get an interrupt and your
|
||||
device is dead or has been isolated, there is a problem :)
|
||||
|
||||
After much thinking, I decided to leave that to the platform. That is,
|
||||
the recovery API only precies that:
|
||||
The current policy is to turn this into a platform policy.
|
||||
That is, the recovery API only requires that:
|
||||
|
||||
- There is no guarantee that interrupt delivery can proceed from any
|
||||
device on the segment starting from the error detection and until the
|
||||
restart callback is sent, at which point interrupts are expected to be
|
||||
resume callback is sent, at which point interrupts are expected to be
|
||||
fully operational.
|
||||
|
||||
- There is no guarantee that interrupt delivery is stopped, that is, ad
|
||||
river that gets an interrupts after detecting an error, or that detects
|
||||
and error within the interrupt handler such that it prevents proper
|
||||
- There is no guarantee that interrupt delivery is stopped, that is,
|
||||
a driver that gets an interrupt after detecting an error, or that detects
|
||||
an error within the interrupt handler such that it prevents proper
|
||||
ack'ing of the interrupt (and thus removal of the source) should just
|
||||
return IRQ_NOTHANDLED. It's up to the platform to deal with taht
|
||||
condition, typically by masking the irq source during the duration of
|
||||
return IRQ_NOTHANDLED. It's up to the platform to deal with that
|
||||
condition, typically by masking the IRQ source during the duration of
|
||||
the error handling. It is expected that the platform "knows" which
|
||||
interrupts are routed to error-management capable slots and can deal
|
||||
with temporarily disabling that irq number during error processing (this
|
||||
with temporarily disabling that IRQ number during error processing (this
|
||||
isn't terribly complex). That means some IRQ latency for other devices
|
||||
sharing the interrupt, but there is simply no other way. High end
|
||||
platforms aren't supposed to share interrupts between many devices
|
||||
anyway :)
|
||||
|
||||
>>> Implementation details for the powerpc platform are discussed in
|
||||
>>> the file Documentation/powerpc/eeh-pci-error-recovery.txt
|
||||
|
||||
Revised: 31 May 2005 Linas Vepstas <linas@austin.ibm.com>
|
||||
>>> As of this writing, there are six device drivers with patches
|
||||
>>> implementing error recovery. Not all of these patches are in
|
||||
>>> mainline yet. These may be used as "examples":
|
||||
>>>
|
||||
>>> drivers/scsi/ipr.c
|
||||
>>> drivers/scsi/sym53cxx_2
|
||||
>>> drivers/next/e100.c
|
||||
>>> drivers/net/e1000
|
||||
>>> drivers/net/ixgb
|
||||
>>> drivers/net/s2io.c
|
||||
|
||||
The End
|
||||
-------
|
||||
|
|
|
@ -44,7 +44,7 @@ it.
|
|||
/sys/power/image_size controls the size of the image created by
|
||||
the suspend-to-disk mechanism. It can be written a string
|
||||
representing a non-negative integer that will be used as an upper
|
||||
limit of the image size, in megabytes. The suspend-to-disk mechanism will
|
||||
limit of the image size, in bytes. The suspend-to-disk mechanism will
|
||||
do its best to ensure the image size will not exceed that number. However,
|
||||
if this turns out to be impossible, it will try to suspend anyway using the
|
||||
smallest image possible. In particular, if "0" is written to this file, the
|
||||
|
|
|
@ -27,7 +27,7 @@ echo shutdown > /sys/power/disk; echo disk > /sys/power/state
|
|||
|
||||
echo platform > /sys/power/disk; echo disk > /sys/power/state
|
||||
|
||||
If you want to limit the suspend image size to N megabytes, do
|
||||
If you want to limit the suspend image size to N bytes, do
|
||||
|
||||
echo N > /sys/power/image_size
|
||||
|
||||
|
|
1486
Documentation/powerpc/booting-without-of.txt
Normal file
1486
Documentation/powerpc/booting-without-of.txt
Normal file
File diff suppressed because it is too large
Load diff
47
Documentation/scsi/ChangeLog.megaraid_sas
Normal file
47
Documentation/scsi/ChangeLog.megaraid_sas
Normal file
|
@ -0,0 +1,47 @@
|
|||
1 Release Date : Wed Feb 03 14:31:44 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
|
||||
2 Current Version : 00.00.02.04
|
||||
3 Older Version : 00.00.02.04
|
||||
|
||||
i. Support for 1078 type (ppc IOP) controller, device id : 0x60 added.
|
||||
During initialization, depending on the device id, the template members
|
||||
are initialized with function pointers specific to the ppc or
|
||||
xscale controllers.
|
||||
|
||||
-Sumant Patro <Sumant.Patro@lsil.com>
|
||||
|
||||
1 Release Date : Fri Feb 03 14:16:25 PST 2006 - Sumant Patro
|
||||
<Sumant.Patro@lsil.com>
|
||||
2 Current Version : 00.00.02.04
|
||||
3 Older Version : 00.00.02.02
|
||||
i. Register 16 byte CDB capability with scsi midlayer
|
||||
|
||||
"Ths patch properly registers the 16 byte command length capability of the
|
||||
megaraid_sas controlled hardware with the scsi midlayer. All megaraid_sas
|
||||
hardware supports 16 byte CDB's."
|
||||
|
||||
-Joshua Giles <joshua_giles@dell.com>
|
||||
|
||||
1 Release Date : Mon Jan 23 14:09:01 PST 2006 - Sumant Patro <Sumant.Patro@lsil.com>
|
||||
2 Current Version : 00.00.02.02
|
||||
3 Older Version : 00.00.02.01
|
||||
|
||||
i. New template defined to represent each family of controllers (identified by processor used).
|
||||
The template will have defintions that will be initialised to appropritae values for a specific family of controllers. The template definition has four function pointers. During driver initialisation the function pointers will be set based on the controller family type. This change is done to support new controllers that has different processors and thus different register set.
|
||||
|
||||
-Sumant Patro <Sumant.Patro@lsil.com>
|
||||
|
||||
1 Release Date : Mon Dec 19 14:36:26 PST 2005 - Sumant Patro <Sumant.Patro@lsil.com>
|
||||
2 Current Version : 00.00.02.00-rc4
|
||||
3 Older Version : 00.00.02.01
|
||||
|
||||
i. Code reorganized to remove code duplication in megasas_build_cmd.
|
||||
|
||||
"There's a lot of duplicate code megasas_build_cmd. Move that out of the different codepathes and merge the reminder of megasas_build_cmd into megasas_queue_command"
|
||||
|
||||
- Christoph Hellwig <hch@lst.de>
|
||||
|
||||
ii. Defined MEGASAS_IOC_FIRMWARE32 for code paths that handles 32 bit applications in 64 bit systems.
|
||||
|
||||
"MEGASAS_IOC_FIRMWARE can't be redefined if CONFIG_COMPAT is set, we need to define a MEGASAS_IOC_FIRMWARE32 define so native binaries continue to work"
|
||||
|
||||
- Christoph Hellwig <hch@lst.de>
|
|
@ -1,5 +1,5 @@
|
|||
====================================================================
|
||||
= Adaptec Ultra320 Family Manager Set v1.3.11 =
|
||||
= Adaptec Ultra320 Family Manager Set =
|
||||
= =
|
||||
= README for =
|
||||
= The Linux Operating System =
|
||||
|
@ -63,6 +63,11 @@ The following information is available in this file:
|
|||
68-pin)
|
||||
2. Version History
|
||||
|
||||
3.0 (December 1st, 2005)
|
||||
- Updated driver to use SCSI transport class infrastructure
|
||||
- Upported sequencer and core fixes from adaptec released
|
||||
version 2.0.15 of the driver.
|
||||
|
||||
1.3.11 (July 11, 2003)
|
||||
- Fix several deadlock issues.
|
||||
- Add 29320ALP and 39320B Id's.
|
||||
|
@ -194,7 +199,7 @@ The following information is available in this file:
|
|||
supported)
|
||||
- Support for the PCI-X standard up to 133MHz
|
||||
- Support for the PCI v2.2 standard
|
||||
- Domain Validation
|
||||
- Domain Validation
|
||||
|
||||
2.2. Operating System Support:
|
||||
- Redhat Linux 7.2, 7.3, 8.0, Advanced Server 2.1
|
||||
|
@ -411,77 +416,53 @@ The following information is available in this file:
|
|||
http://www.adaptec.com.
|
||||
|
||||
|
||||
5. Contacting Adaptec
|
||||
5. Adaptec Customer Support
|
||||
|
||||
A Technical Support Identification (TSID) Number is required for
|
||||
Adaptec technical support.
|
||||
- The 12-digit TSID can be found on the white barcode-type label
|
||||
included inside the box with your product. The TSID helps us
|
||||
included inside the box with your product. The TSID helps us
|
||||
provide more efficient service by accurately identifying your
|
||||
product and support status.
|
||||
|
||||
Support Options
|
||||
- Search the Adaptec Support Knowledgebase (ASK) at
|
||||
http://ask.adaptec.com for articles, troubleshooting tips, and
|
||||
frequently asked questions for your product.
|
||||
frequently asked questions about your product.
|
||||
- For support via Email, submit your question to Adaptec's
|
||||
Technical Support Specialists at http://ask.adaptec.com.
|
||||
Technical Support Specialists at http://ask.adaptec.com/.
|
||||
|
||||
North America
|
||||
- Visit our Web site at http://www.adaptec.com.
|
||||
- To speak with a Fibre Channel/RAID/External Storage Technical
|
||||
Support Specialist, call 1-321-207-2000,
|
||||
Hours: Monday-Friday, 3:00 A.M. to 5:00 P.M., PST.
|
||||
(Not open on holidays)
|
||||
- For Technical Support in all other technologies including
|
||||
SCSI, call 1-408-934-7274,
|
||||
Hours: Monday-Friday, 6:00 A.M. to 5:00 P.M., PST.
|
||||
(Not open on holidays)
|
||||
- For after hours support, call 1-800-416-8066 ($99/call,
|
||||
$149/call on holidays)
|
||||
- To order Adaptec products including software and cables, call
|
||||
1-800-442-7274 or 1-408-957-7274. You can also visit our
|
||||
online store at http://www.adaptecstore.com
|
||||
- Visit our Web site at http://www.adaptec.com/.
|
||||
- For information about Adaptec's support options, call
|
||||
408-957-2550, 24 hours a day, 7 days a week.
|
||||
- To speak with a Technical Support Specialist,
|
||||
* For hardware products, call 408-934-7274,
|
||||
Monday to Friday, 3:00 am to 5:00 pm, PDT.
|
||||
* For RAID and Fibre Channel products, call 321-207-2000,
|
||||
Monday to Friday, 3:00 am to 5:00 pm, PDT.
|
||||
To expedite your service, have your computer with you.
|
||||
- To order Adaptec products, including accessories and cables,
|
||||
call 408-957-7274. To order cables online go to
|
||||
http://www.adaptec.com/buy-cables/.
|
||||
|
||||
Europe
|
||||
- Visit our Web site at http://www.adaptec-europe.com.
|
||||
- English and French: To speak with a Technical Support
|
||||
Specialist, call one of the following numbers:
|
||||
- English: +32-2-352-3470
|
||||
- French: +32-2-352-3460
|
||||
Hours: Monday-Thursday, 10:00 to 12:30, 13:30 to 17:30 CET
|
||||
Friday, 10:00 to 12:30, 13:30 to 16:30 CET
|
||||
- German: To speak with a Technical Support Specialist,
|
||||
call +49-89-456-40660
|
||||
Hours: Monday-Thursday, 09:30 to 12:30, 13:30 to 16:30 CET
|
||||
Friday, 09:30 to 12:30, 13:30 to 15:00 CET
|
||||
- To order Adaptec products, including accessories and cables:
|
||||
- UK: +0800-96-65-26 or fax +0800-731-02-95
|
||||
- Other European countries: +32-11-300-379
|
||||
|
||||
Australia and New Zealand
|
||||
- Visit our Web site at http://www.adaptec.com.au.
|
||||
- To speak with a Technical Support Specialist, call
|
||||
+612-9416-0698
|
||||
Hours: Monday-Friday, 10:00 A.M. to 4:30 P.M., EAT
|
||||
(Not open on holidays)
|
||||
- Visit our Web site at http://www.adaptec-europe.com/.
|
||||
- To speak with a Technical Support Specialist, call, or email,
|
||||
* German: +49 89 4366 5522, Monday-Friday, 9:00-17:00 CET,
|
||||
http://ask-de.adaptec.com/.
|
||||
* French: +49 89 4366 5533, Monday-Friday, 9:00-17:00 CET,
|
||||
http://ask-fr.adaptec.com/.
|
||||
* English: +49 89 4366 5544, Monday-Friday, 9:00-17:00 GMT,
|
||||
http://ask.adaptec.com/.
|
||||
- You can order Adaptec cables online at
|
||||
http://www.adaptec.com/buy-cables/.
|
||||
|
||||
Japan
|
||||
- Visit our web site at http://www.adaptec.co.jp/.
|
||||
- To speak with a Technical Support Specialist, call
|
||||
+81-3-5308-6120
|
||||
Hours: Monday-Friday, 9:00 a.m. to 12:00 p.m., 1:00 p.m. to
|
||||
6:00 p.m. TSC
|
||||
|
||||
Hong Kong and China
|
||||
- To speak with a Technical Support Specialist, call
|
||||
+852-2869-7200
|
||||
Hours: Monday-Friday, 10:00 to 17:00.
|
||||
- Fax Technical Support at +852-2869-7100.
|
||||
|
||||
Singapore
|
||||
- To speak with a Technical Support Specialist, call
|
||||
+65-245-7470
|
||||
Hours: Monday-Friday, 10:00 to 17:00.
|
||||
- Fax Technical Support at +852-2869-7100
|
||||
+81 3 5308 6120, Monday-Friday, 9:00 a.m. to 12:00 p.m.,
|
||||
1:00 p.m. to 6:00 p.m.
|
||||
|
||||
-------------------------------------------------------------------
|
||||
/*
|
||||
|
|
|
@ -309,81 +309,57 @@ The following information is available in this file:
|
|||
-----------------------------------------------------------------
|
||||
|
||||
Example:
|
||||
'options aic7xxx aic7xxx=verbose,no_probe,tag_info:{{},{,,10}},seltime:1"
|
||||
'options aic7xxx aic7xxx=verbose,no_probe,tag_info:{{},{,,10}},seltime:1'
|
||||
enables verbose logging, Disable EISA/VLB probing,
|
||||
and set tag depth on Controller 1/Target 2 to 10 tags.
|
||||
|
||||
3. Contacting Adaptec
|
||||
4. Adaptec Customer Support
|
||||
|
||||
A Technical Support Identification (TSID) Number is required for
|
||||
Adaptec technical support.
|
||||
- The 12-digit TSID can be found on the white barcode-type label
|
||||
included inside the box with your product. The TSID helps us
|
||||
included inside the box with your product. The TSID helps us
|
||||
provide more efficient service by accurately identifying your
|
||||
product and support status.
|
||||
|
||||
Support Options
|
||||
- Search the Adaptec Support Knowledgebase (ASK) at
|
||||
http://ask.adaptec.com for articles, troubleshooting tips, and
|
||||
frequently asked questions for your product.
|
||||
frequently asked questions about your product.
|
||||
- For support via Email, submit your question to Adaptec's
|
||||
Technical Support Specialists at http://ask.adaptec.com.
|
||||
Technical Support Specialists at http://ask.adaptec.com/.
|
||||
|
||||
North America
|
||||
- Visit our Web site at http://www.adaptec.com.
|
||||
- To speak with a Fibre Channel/RAID/External Storage Technical
|
||||
Support Specialist, call 1-321-207-2000,
|
||||
Hours: Monday-Friday, 3:00 A.M. to 5:00 P.M., PST.
|
||||
(Not open on holidays)
|
||||
- For Technical Support in all other technologies including
|
||||
SCSI, call 1-408-934-7274,
|
||||
Hours: Monday-Friday, 6:00 A.M. to 5:00 P.M., PST.
|
||||
(Not open on holidays)
|
||||
- For after hours support, call 1-800-416-8066 ($99/call,
|
||||
$149/call on holidays)
|
||||
- To order Adaptec products including software and cables, call
|
||||
1-800-442-7274 or 1-408-957-7274. You can also visit our
|
||||
online store at http://www.adaptecstore.com
|
||||
- Visit our Web site at http://www.adaptec.com/.
|
||||
- For information about Adaptec's support options, call
|
||||
408-957-2550, 24 hours a day, 7 days a week.
|
||||
- To speak with a Technical Support Specialist,
|
||||
* For hardware products, call 408-934-7274,
|
||||
Monday to Friday, 3:00 am to 5:00 pm, PDT.
|
||||
* For RAID and Fibre Channel products, call 321-207-2000,
|
||||
Monday to Friday, 3:00 am to 5:00 pm, PDT.
|
||||
To expedite your service, have your computer with you.
|
||||
- To order Adaptec products, including accessories and cables,
|
||||
call 408-957-7274. To order cables online go to
|
||||
http://www.adaptec.com/buy-cables/.
|
||||
|
||||
Europe
|
||||
- Visit our Web site at http://www.adaptec-europe.com.
|
||||
- English and French: To speak with a Technical Support
|
||||
Specialist, call one of the following numbers:
|
||||
- English: +32-2-352-3470
|
||||
- French: +32-2-352-3460
|
||||
Hours: Monday-Thursday, 10:00 to 12:30, 13:30 to 17:30 CET
|
||||
Friday, 10:00 to 12:30, 13:30 to 16:30 CET
|
||||
- German: To speak with a Technical Support Specialist,
|
||||
call +49-89-456-40660
|
||||
Hours: Monday-Thursday, 09:30 to 12:30, 13:30 to 16:30 CET
|
||||
Friday, 09:30 to 12:30, 13:30 to 15:00 CET
|
||||
- To order Adaptec products, including accessories and cables:
|
||||
- UK: +0800-96-65-26 or fax +0800-731-02-95
|
||||
- Other European countries: +32-11-300-379
|
||||
|
||||
Australia and New Zealand
|
||||
- Visit our Web site at http://www.adaptec.com.au.
|
||||
- To speak with a Technical Support Specialist, call
|
||||
+612-9416-0698
|
||||
Hours: Monday-Friday, 10:00 A.M. to 4:30 P.M., EAT
|
||||
(Not open on holidays)
|
||||
- Visit our Web site at http://www.adaptec-europe.com/.
|
||||
- To speak with a Technical Support Specialist, call, or email,
|
||||
* German: +49 89 4366 5522, Monday-Friday, 9:00-17:00 CET,
|
||||
http://ask-de.adaptec.com/.
|
||||
* French: +49 89 4366 5533, Monday-Friday, 9:00-17:00 CET,
|
||||
http://ask-fr.adaptec.com/.
|
||||
* English: +49 89 4366 5544, Monday-Friday, 9:00-17:00 GMT,
|
||||
http://ask.adaptec.com/.
|
||||
- You can order Adaptec cables online at
|
||||
http://www.adaptec.com/buy-cables/.
|
||||
|
||||
Japan
|
||||
- Visit our web site at http://www.adaptec.co.jp/.
|
||||
- To speak with a Technical Support Specialist, call
|
||||
+81-3-5308-6120
|
||||
Hours: Monday-Friday, 9:00 a.m. to 12:00 p.m., 1:00 p.m. to
|
||||
6:00 p.m. TSC
|
||||
|
||||
Hong Kong and China
|
||||
- To speak with a Technical Support Specialist, call
|
||||
+852-2869-7200
|
||||
Hours: Monday-Friday, 10:00 to 17:00.
|
||||
- Fax Technical Support at +852-2869-7100.
|
||||
|
||||
Singapore
|
||||
- To speak with a Technical Support Specialist, call
|
||||
+65-245-7470
|
||||
Hours: Monday-Friday, 10:00 to 17:00.
|
||||
- Fax Technical Support at +852-2869-7100
|
||||
+81 3 5308 6120, Monday-Friday, 9:00 a.m. to 12:00 p.m.,
|
||||
1:00 p.m. to 6:00 p.m.
|
||||
|
||||
-------------------------------------------------------------------
|
||||
/*
|
||||
|
|
|
@ -837,8 +837,10 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
|
|||
|
||||
Module for AC'97 motherboards from Intel and compatibles.
|
||||
* Intel i810/810E, i815, i820, i830, i84x, MX440
|
||||
ICH5, ICH6, ICH7, ESB2
|
||||
* SiS 7012 (SiS 735)
|
||||
* NVidia NForce, NForce2
|
||||
* NVidia NForce, NForce2, NForce3, MCP04, CK804
|
||||
CK8, CK8S, MCP501
|
||||
* AMD AMD768, AMD8111
|
||||
* ALi m5455
|
||||
|
||||
|
@ -868,6 +870,12 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
|
|||
--------------------
|
||||
|
||||
Module for Intel ICH (i8x0) chipset MC97 modems.
|
||||
* Intel i810/810E, i815, i820, i830, i84x, MX440
|
||||
ICH5, ICH6, ICH7
|
||||
* SiS 7013 (SiS 735)
|
||||
* NVidia NForce, NForce2, NForce2s, NForce3
|
||||
* AMD AMD8111
|
||||
* ALi m5455
|
||||
|
||||
ac97_clock - AC'97 codec clock base (0 = auto-detect)
|
||||
|
||||
|
|
|
@ -5206,14 +5206,14 @@ struct _snd_pcm_runtime {
|
|||
You need to pass the <function>snd_dma_pci_data(pci)</function>,
|
||||
where pci is the struct <structname>pci_dev</structname> pointer
|
||||
of the chip as well.
|
||||
The <type>snd_sg_buf_t</type> instance is created as
|
||||
The <type>struct snd_sg_buf</type> instance is created as
|
||||
substream->dma_private. You can cast
|
||||
the pointer like:
|
||||
|
||||
<informalexample>
|
||||
<programlisting>
|
||||
<![CDATA[
|
||||
struct snd_sg_buf *sgbuf = (struct snd_sg_buf_t*)substream->dma_private;
|
||||
struct snd_sg_buf *sgbuf = (struct snd_sg_buf *)substream->dma_private;
|
||||
]]>
|
||||
</programlisting>
|
||||
</informalexample>
|
||||
|
|
|
@ -12,13 +12,20 @@ You can make this adapter from an old printer cable and solder things
|
|||
directly to the Butterfly. Or (if you have the parts and skills) you
|
||||
can come up with something fancier, providing ciruit protection to the
|
||||
Butterfly and the printer port, or with a better power supply than two
|
||||
signal pins from the printer port.
|
||||
signal pins from the printer port. Or for that matter, you can use
|
||||
similar cables to talk to many AVR boards, even a breadboard.
|
||||
|
||||
This is more powerful than "ISP programming" cables since it lets kernel
|
||||
SPI protocol drivers interact with the AVR, and could even let the AVR
|
||||
issue interrupts to them. Later, your protocol driver should work
|
||||
easily with a "real SPI controller", instead of this bitbanger.
|
||||
|
||||
|
||||
The first cable connections will hook Linux up to one SPI bus, with the
|
||||
AVR and a DataFlash chip; and to the AVR reset line. This is all you
|
||||
need to reflash the firmware, and the pins are the standard Atmel "ISP"
|
||||
connector pins (used also on non-Butterfly AVR boards).
|
||||
connector pins (used also on non-Butterfly AVR boards). On the parport
|
||||
side this is like "sp12" programming cables.
|
||||
|
||||
Signal Butterfly Parport (DB-25)
|
||||
------ --------- ---------------
|
||||
|
@ -40,10 +47,14 @@ by clearing PORTB.[0-3]); (b) configure the mtd_dataflash driver; and
|
|||
SELECT = J400.PB0/nSS = pin 17/C3,nSELECT
|
||||
GND = J400.GND = pin 24/GND
|
||||
|
||||
The "USI" controller, using J405, can be used for a second SPI bus. That
|
||||
would let you talk to the AVR over SPI, running firmware that makes it act
|
||||
as an SPI slave, while letting either Linux or the AVR use the DataFlash.
|
||||
There are plenty of spare parport pins to wire this one up, such as:
|
||||
Or you could flash firmware making the AVR into an SPI slave (keeping the
|
||||
DataFlash in reset) and tweak the spi_butterfly driver to make it bind to
|
||||
the driver for your custom SPI-based protocol.
|
||||
|
||||
The "USI" controller, using J405, can also be used for a second SPI bus.
|
||||
That would let you talk to the AVR using custom SPI-with-USI firmware,
|
||||
while letting either Linux or the AVR use the DataFlash. There are plenty
|
||||
of spare parport pins to wire this one up, such as:
|
||||
|
||||
Signal Butterfly Parport (DB-25)
|
||||
------ --------- ---------------
|
||||
|
|
|
@ -16,6 +16,7 @@ before actually making adjustments.
|
|||
|
||||
Currently, these files might (depending on your configuration)
|
||||
show up in /proc/sys/kernel:
|
||||
- acpi_video_flags
|
||||
- acct
|
||||
- core_pattern
|
||||
- core_uses_pid
|
||||
|
@ -57,6 +58,15 @@ show up in /proc/sys/kernel:
|
|||
|
||||
==============================================================
|
||||
|
||||
acpi_video_flags:
|
||||
|
||||
flags
|
||||
|
||||
See Doc*/kernel/power/video.txt, it allows mode of video boot to be
|
||||
set during run time.
|
||||
|
||||
==============================================================
|
||||
|
||||
acct:
|
||||
|
||||
highwater lowwater frequency
|
||||
|
|
|
@ -28,6 +28,7 @@ Currently, these files are in /proc/sys/vm:
|
|||
- block_dump
|
||||
- drop-caches
|
||||
- zone_reclaim_mode
|
||||
- zone_reclaim_interval
|
||||
|
||||
==============================================================
|
||||
|
||||
|
@ -126,15 +127,54 @@ the high water marks for each per cpu page list.
|
|||
|
||||
zone_reclaim_mode:
|
||||
|
||||
This is set during bootup to 1 if it is determined that pages from
|
||||
remote zones will cause a significant performance reduction. The
|
||||
Zone_reclaim_mode allows to set more or less agressive approaches to
|
||||
reclaim memory when a zone runs out of memory. If it is set to zero then no
|
||||
zone reclaim occurs. Allocations will be satisfied from other zones / nodes
|
||||
in the system.
|
||||
|
||||
This is value ORed together of
|
||||
|
||||
1 = Zone reclaim on
|
||||
2 = Zone reclaim writes dirty pages out
|
||||
4 = Zone reclaim swaps pages
|
||||
8 = Also do a global slab reclaim pass
|
||||
|
||||
zone_reclaim_mode is set during bootup to 1 if it is determined that pages
|
||||
from remote zones will cause a measurable performance reduction. The
|
||||
page allocator will then reclaim easily reusable pages (those page
|
||||
cache pages that are currently not used) before going off node.
|
||||
cache pages that are currently not used) before allocating off node pages.
|
||||
|
||||
The user can override this setting. It may be beneficial to switch
|
||||
off zone reclaim if the system is used for a file server and all
|
||||
of memory should be used for caching files from disk.
|
||||
It may be beneficial to switch off zone reclaim if the system is
|
||||
used for a file server and all of memory should be used for caching files
|
||||
from disk. In that case the caching effect is more important than
|
||||
data locality.
|
||||
|
||||
It may be beneficial to switch this on if one wants to do zone
|
||||
reclaim regardless of the numa distances in the system.
|
||||
Allowing zone reclaim to write out pages stops processes that are
|
||||
writing large amounts of data from dirtying pages on other nodes. Zone
|
||||
reclaim will write out dirty pages if a zone fills up and so effectively
|
||||
throttle the process. This may decrease the performance of a single process
|
||||
since it cannot use all of system memory to buffer the outgoing writes
|
||||
anymore but it preserve the memory on other nodes so that the performance
|
||||
of other processes running on other nodes will not be affected.
|
||||
|
||||
Allowing regular swap effectively restricts allocations to the local
|
||||
node unless explicitly overridden by memory policies or cpuset
|
||||
configurations.
|
||||
|
||||
It may be advisable to allow slab reclaim if the system makes heavy
|
||||
use of files and builds up large slab caches. However, the slab
|
||||
shrink operation is global, may take a long time and free slabs
|
||||
in all nodes of the system.
|
||||
|
||||
================================================================
|
||||
|
||||
zone_reclaim_interval:
|
||||
|
||||
The time allowed for off node allocations after zone reclaim
|
||||
has failed to reclaim enough pages to allow a local allocation.
|
||||
|
||||
Time is set in seconds and set by default to 30 seconds.
|
||||
|
||||
Reduce the interval if undesired off node allocations occur. However, too
|
||||
frequent scans will have a negative impact onoff node allocation performance.
|
||||
|
||||
|
|
295
Documentation/unshare.txt
Normal file
295
Documentation/unshare.txt
Normal file
|
@ -0,0 +1,295 @@
|
|||
|
||||
unshare system call:
|
||||
--------------------
|
||||
This document describes the new system call, unshare. The document
|
||||
provides an overview of the feature, why it is needed, how it can
|
||||
be used, its interface specification, design, implementation and
|
||||
how it can be tested.
|
||||
|
||||
Change Log:
|
||||
-----------
|
||||
version 0.1 Initial document, Janak Desai (janak@us.ibm.com), Jan 11, 2006
|
||||
|
||||
Contents:
|
||||
---------
|
||||
1) Overview
|
||||
2) Benefits
|
||||
3) Cost
|
||||
4) Requirements
|
||||
5) Functional Specification
|
||||
6) High Level Design
|
||||
7) Low Level Design
|
||||
8) Test Specification
|
||||
9) Future Work
|
||||
|
||||
1) Overview
|
||||
-----------
|
||||
Most legacy operating system kernels support an abstraction of threads
|
||||
as multiple execution contexts within a process. These kernels provide
|
||||
special resources and mechanisms to maintain these "threads". The Linux
|
||||
kernel, in a clever and simple manner, does not make distinction
|
||||
between processes and "threads". The kernel allows processes to share
|
||||
resources and thus they can achieve legacy "threads" behavior without
|
||||
requiring additional data structures and mechanisms in the kernel. The
|
||||
power of implementing threads in this manner comes not only from
|
||||
its simplicity but also from allowing application programmers to work
|
||||
outside the confinement of all-or-nothing shared resources of legacy
|
||||
threads. On Linux, at the time of thread creation using the clone system
|
||||
call, applications can selectively choose which resources to share
|
||||
between threads.
|
||||
|
||||
unshare system call adds a primitive to the Linux thread model that
|
||||
allows threads to selectively 'unshare' any resources that were being
|
||||
shared at the time of their creation. unshare was conceptualized by
|
||||
Al Viro in the August of 2000, on the Linux-Kernel mailing list, as part
|
||||
of the discussion on POSIX threads on Linux. unshare augments the
|
||||
usefulness of Linux threads for applications that would like to control
|
||||
shared resources without creating a new process. unshare is a natural
|
||||
addition to the set of available primitives on Linux that implement
|
||||
the concept of process/thread as a virtual machine.
|
||||
|
||||
2) Benefits
|
||||
-----------
|
||||
unshare would be useful to large application frameworks such as PAM
|
||||
where creating a new process to control sharing/unsharing of process
|
||||
resources is not possible. Since namespaces are shared by default
|
||||
when creating a new process using fork or clone, unshare can benefit
|
||||
even non-threaded applications if they have a need to disassociate
|
||||
from default shared namespace. The following lists two use-cases
|
||||
where unshare can be used.
|
||||
|
||||
2.1 Per-security context namespaces
|
||||
-----------------------------------
|
||||
unshare can be used to implement polyinstantiated directories using
|
||||
the kernel's per-process namespace mechanism. Polyinstantiated directories,
|
||||
such as per-user and/or per-security context instance of /tmp, /var/tmp or
|
||||
per-security context instance of a user's home directory, isolate user
|
||||
processes when working with these directories. Using unshare, a PAM
|
||||
module can easily setup a private namespace for a user at login.
|
||||
Polyinstantiated directories are required for Common Criteria certification
|
||||
with Labeled System Protection Profile, however, with the availability
|
||||
of shared-tree feature in the Linux kernel, even regular Linux systems
|
||||
can benefit from setting up private namespaces at login and
|
||||
polyinstantiating /tmp, /var/tmp and other directories deemed
|
||||
appropriate by system administrators.
|
||||
|
||||
2.2 unsharing of virtual memory and/or open files
|
||||
-------------------------------------------------
|
||||
Consider a client/server application where the server is processing
|
||||
client requests by creating processes that share resources such as
|
||||
virtual memory and open files. Without unshare, the server has to
|
||||
decide what needs to be shared at the time of creating the process
|
||||
which services the request. unshare allows the server an ability to
|
||||
disassociate parts of the context during the servicing of the
|
||||
request. For large and complex middleware application frameworks, this
|
||||
ability to unshare after the process was created can be very
|
||||
useful.
|
||||
|
||||
3) Cost
|
||||
-------
|
||||
In order to not duplicate code and to handle the fact that unshare
|
||||
works on an active task (as opposed to clone/fork working on a newly
|
||||
allocated inactive task) unshare had to make minor reorganizational
|
||||
changes to copy_* functions utilized by clone/fork system call.
|
||||
There is a cost associated with altering existing, well tested and
|
||||
stable code to implement a new feature that may not get exercised
|
||||
extensively in the beginning. However, with proper design and code
|
||||
review of the changes and creation of an unshare test for the LTP
|
||||
the benefits of this new feature can exceed its cost.
|
||||
|
||||
4) Requirements
|
||||
---------------
|
||||
unshare reverses sharing that was done using clone(2) system call,
|
||||
so unshare should have a similar interface as clone(2). That is,
|
||||
since flags in clone(int flags, void *stack) specifies what should
|
||||
be shared, similar flags in unshare(int flags) should specify
|
||||
what should be unshared. Unfortunately, this may appear to invert
|
||||
the meaning of the flags from the way they are used in clone(2).
|
||||
However, there was no easy solution that was less confusing and that
|
||||
allowed incremental context unsharing in future without an ABI change.
|
||||
|
||||
unshare interface should accommodate possible future addition of
|
||||
new context flags without requiring a rebuild of old applications.
|
||||
If and when new context flags are added, unshare design should allow
|
||||
incremental unsharing of those resources on an as needed basis.
|
||||
|
||||
5) Functional Specification
|
||||
---------------------------
|
||||
NAME
|
||||
unshare - disassociate parts of the process execution context
|
||||
|
||||
SYNOPSIS
|
||||
#include <sched.h>
|
||||
|
||||
int unshare(int flags);
|
||||
|
||||
DESCRIPTION
|
||||
unshare allows a process to disassociate parts of its execution
|
||||
context that are currently being shared with other processes. Part
|
||||
of execution context, such as the namespace, is shared by default
|
||||
when a new process is created using fork(2), while other parts,
|
||||
such as the virtual memory, open file descriptors, etc, may be
|
||||
shared by explicit request to share them when creating a process
|
||||
using clone(2).
|
||||
|
||||
The main use of unshare is to allow a process to control its
|
||||
shared execution context without creating a new process.
|
||||
|
||||
The flags argument specifies one or bitwise-or'ed of several of
|
||||
the following constants.
|
||||
|
||||
CLONE_FS
|
||||
If CLONE_FS is set, file system information of the caller
|
||||
is disassociated from the shared file system information.
|
||||
|
||||
CLONE_FILES
|
||||
If CLONE_FILES is set, the file descriptor table of the
|
||||
caller is disassociated from the shared file descriptor
|
||||
table.
|
||||
|
||||
CLONE_NEWNS
|
||||
If CLONE_NEWNS is set, the namespace of the caller is
|
||||
disassociated from the shared namespace.
|
||||
|
||||
CLONE_VM
|
||||
If CLONE_VM is set, the virtual memory of the caller is
|
||||
disassociated from the shared virtual memory.
|
||||
|
||||
RETURN VALUE
|
||||
On success, zero returned. On failure, -1 is returned and errno is
|
||||
|
||||
ERRORS
|
||||
EPERM CLONE_NEWNS was specified by a non-root process (process
|
||||
without CAP_SYS_ADMIN).
|
||||
|
||||
ENOMEM Cannot allocate sufficient memory to copy parts of caller's
|
||||
context that need to be unshared.
|
||||
|
||||
EINVAL Invalid flag was specified as an argument.
|
||||
|
||||
CONFORMING TO
|
||||
The unshare() call is Linux-specific and should not be used
|
||||
in programs intended to be portable.
|
||||
|
||||
SEE ALSO
|
||||
clone(2), fork(2)
|
||||
|
||||
6) High Level Design
|
||||
--------------------
|
||||
Depending on the flags argument, the unshare system call allocates
|
||||
appropriate process context structures, populates it with values from
|
||||
the current shared version, associates newly duplicated structures
|
||||
with the current task structure and releases corresponding shared
|
||||
versions. Helper functions of clone (copy_*) could not be used
|
||||
directly by unshare because of the following two reasons.
|
||||
1) clone operates on a newly allocated not-yet-active task
|
||||
structure, where as unshare operates on the current active
|
||||
task. Therefore unshare has to take appropriate task_lock()
|
||||
before associating newly duplicated context structures
|
||||
2) unshare has to allocate and duplicate all context structures
|
||||
that are being unshared, before associating them with the
|
||||
current task and releasing older shared structures. Failure
|
||||
do so will create race conditions and/or oops when trying
|
||||
to backout due to an error. Consider the case of unsharing
|
||||
both virtual memory and namespace. After successfully unsharing
|
||||
vm, if the system call encounters an error while allocating
|
||||
new namespace structure, the error return code will have to
|
||||
reverse the unsharing of vm. As part of the reversal the
|
||||
system call will have to go back to older, shared, vm
|
||||
structure, which may not exist anymore.
|
||||
|
||||
Therefore code from copy_* functions that allocated and duplicated
|
||||
current context structure was moved into new dup_* functions. Now,
|
||||
copy_* functions call dup_* functions to allocate and duplicate
|
||||
appropriate context structures and then associate them with the
|
||||
task structure that is being constructed. unshare system call on
|
||||
the other hand performs the following:
|
||||
1) Check flags to force missing, but implied, flags
|
||||
2) For each context structure, call the corresponding unshare
|
||||
helper function to allocate and duplicate a new context
|
||||
structure, if the appropriate bit is set in the flags argument.
|
||||
3) If there is no error in allocation and duplication and there
|
||||
are new context structures then lock the current task structure,
|
||||
associate new context structures with the current task structure,
|
||||
and release the lock on the current task structure.
|
||||
4) Appropriately release older, shared, context structures.
|
||||
|
||||
7) Low Level Design
|
||||
-------------------
|
||||
Implementation of unshare can be grouped in the following 4 different
|
||||
items:
|
||||
a) Reorganization of existing copy_* functions
|
||||
b) unshare system call service function
|
||||
c) unshare helper functions for each different process context
|
||||
d) Registration of system call number for different architectures
|
||||
|
||||
7.1) Reorganization of copy_* functions
|
||||
Each copy function such as copy_mm, copy_namespace, copy_files,
|
||||
etc, had roughly two components. The first component allocated
|
||||
and duplicated the appropriate structure and the second component
|
||||
linked it to the task structure passed in as an argument to the copy
|
||||
function. The first component was split into its own function.
|
||||
These dup_* functions allocated and duplicated the appropriate
|
||||
context structure. The reorganized copy_* functions invoked
|
||||
their corresponding dup_* functions and then linked the newly
|
||||
duplicated structures to the task structure with which the
|
||||
copy function was called.
|
||||
|
||||
7.2) unshare system call service function
|
||||
* Check flags
|
||||
Force implied flags. If CLONE_THREAD is set force CLONE_VM.
|
||||
If CLONE_VM is set, force CLONE_SIGHAND. If CLONE_SIGHAND is
|
||||
set and signals are also being shared, force CLONE_THREAD. If
|
||||
CLONE_NEWNS is set, force CLONE_FS.
|
||||
* For each context flag, invoke the corresponding unshare_*
|
||||
helper routine with flags passed into the system call and a
|
||||
reference to pointer pointing the new unshared structure
|
||||
* If any new structures are created by unshare_* helper
|
||||
functions, take the task_lock() on the current task,
|
||||
modify appropriate context pointers, and release the
|
||||
task lock.
|
||||
* For all newly unshared structures, release the corresponding
|
||||
older, shared, structures.
|
||||
|
||||
7.3) unshare_* helper functions
|
||||
For unshare_* helpers corresponding to CLONE_SYSVSEM, CLONE_SIGHAND,
|
||||
and CLONE_THREAD, return -EINVAL since they are not implemented yet.
|
||||
For others, check the flag value to see if the unsharing is
|
||||
required for that structure. If it is, invoke the corresponding
|
||||
dup_* function to allocate and duplicate the structure and return
|
||||
a pointer to it.
|
||||
|
||||
7.4) Appropriately modify architecture specific code to register the
|
||||
the new system call.
|
||||
|
||||
8) Test Specification
|
||||
---------------------
|
||||
The test for unshare should test the following:
|
||||
1) Valid flags: Test to check that clone flags for signal and
|
||||
signal handlers, for which unsharing is not implemented
|
||||
yet, return -EINVAL.
|
||||
2) Missing/implied flags: Test to make sure that if unsharing
|
||||
namespace without specifying unsharing of filesystem, correctly
|
||||
unshares both namespace and filesystem information.
|
||||
3) For each of the four (namespace, filesystem, files and vm)
|
||||
supported unsharing, verify that the system call correctly
|
||||
unshares the appropriate structure. Verify that unsharing
|
||||
them individually as well as in combination with each
|
||||
other works as expected.
|
||||
4) Concurrent execution: Use shared memory segments and futex on
|
||||
an address in the shm segment to synchronize execution of
|
||||
about 10 threads. Have a couple of threads execute execve,
|
||||
a couple _exit and the rest unshare with different combination
|
||||
of flags. Verify that unsharing is performed as expected and
|
||||
that there are no oops or hangs.
|
||||
|
||||
9) Future Work
|
||||
--------------
|
||||
The current implementation of unshare does not allow unsharing of
|
||||
signals and signal handlers. Signals are complex to begin with and
|
||||
to unshare signals and/or signal handlers of a currently running
|
||||
process is even more complex. If in the future there is a specific
|
||||
need to allow unsharing of signals and/or signal handlers, it can
|
||||
be incrementally added to unshare without affecting legacy
|
||||
applications using unshare.
|
||||
|
306
Documentation/usb/et61x251.txt
Normal file
306
Documentation/usb/et61x251.txt
Normal file
|
@ -0,0 +1,306 @@
|
|||
|
||||
ET61X[12]51 PC Camera Controllers
|
||||
Driver for Linux
|
||||
=================================
|
||||
|
||||
- Documentation -
|
||||
|
||||
|
||||
Index
|
||||
=====
|
||||
1. Copyright
|
||||
2. Disclaimer
|
||||
3. License
|
||||
4. Overview and features
|
||||
5. Module dependencies
|
||||
6. Module loading
|
||||
7. Module parameters
|
||||
8. Optional device control through "sysfs"
|
||||
9. Supported devices
|
||||
10. Notes for V4L2 application developers
|
||||
11. Contact information
|
||||
|
||||
|
||||
1. Copyright
|
||||
============
|
||||
Copyright (C) 2006 by Luca Risolia <luca.risolia@studio.unibo.it>
|
||||
|
||||
|
||||
2. Disclaimer
|
||||
=============
|
||||
Etoms is a trademark of Etoms Electronics Corp.
|
||||
This software is not developed or sponsored by Etoms Electronics.
|
||||
|
||||
|
||||
3. License
|
||||
==========
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
|
||||
4. Overview and features
|
||||
========================
|
||||
This driver supports the video interface of the devices mounting the ET61X151
|
||||
or ET61X251 PC Camera Controllers.
|
||||
|
||||
It's worth to note that Etoms Electronics has never collaborated with the
|
||||
author during the development of this project; despite several requests,
|
||||
Etoms Electronics also refused to release enough detailed specifications of
|
||||
the video compression engine.
|
||||
|
||||
The driver relies on the Video4Linux2 and USB core modules. It has been
|
||||
designed to run properly on SMP systems as well.
|
||||
|
||||
The latest version of the ET61X[12]51 driver can be found at the following URL:
|
||||
http://www.linux-projects.org/
|
||||
|
||||
Some of the features of the driver are:
|
||||
|
||||
- full compliance with the Video4Linux2 API (see also "Notes for V4L2
|
||||
application developers" paragraph);
|
||||
- available mmap or read/poll methods for video streaming through isochronous
|
||||
data transfers;
|
||||
- automatic detection of image sensor;
|
||||
- support for any window resolutions and optional panning within the maximum
|
||||
pixel area of image sensor;
|
||||
- image downscaling with arbitrary scaling factors from 1 and 2 in both
|
||||
directions (see "Notes for V4L2 application developers" paragraph);
|
||||
- two different video formats for uncompressed or compressed data in low or
|
||||
high compression quality (see also "Notes for V4L2 application developers"
|
||||
paragraph);
|
||||
- full support for the capabilities of every possible image sensors that can
|
||||
be connected to the ET61X[12]51 bridges, including, for istance, red, green,
|
||||
blue and global gain adjustments and exposure control (see "Supported
|
||||
devices" paragraph for details);
|
||||
- use of default color settings for sunlight conditions;
|
||||
- dynamic I/O interface for both ET61X[12]51 and image sensor control (see
|
||||
"Optional device control through 'sysfs'" paragraph);
|
||||
- dynamic driver control thanks to various module parameters (see "Module
|
||||
parameters" paragraph);
|
||||
- up to 64 cameras can be handled at the same time; they can be connected and
|
||||
disconnected from the host many times without turning off the computer, if
|
||||
the system supports hotplugging;
|
||||
- no known bugs.
|
||||
|
||||
|
||||
5. Module dependencies
|
||||
======================
|
||||
For it to work properly, the driver needs kernel support for Video4Linux and
|
||||
USB.
|
||||
|
||||
The following options of the kernel configuration file must be enabled and
|
||||
corresponding modules must be compiled:
|
||||
|
||||
# Multimedia devices
|
||||
#
|
||||
CONFIG_VIDEO_DEV=m
|
||||
|
||||
To enable advanced debugging functionality on the device through /sysfs:
|
||||
|
||||
# Multimedia devices
|
||||
#
|
||||
CONFIG_VIDEO_ADV_DEBUG=y
|
||||
|
||||
# USB support
|
||||
#
|
||||
CONFIG_USB=m
|
||||
|
||||
In addition, depending on the hardware being used, the modules below are
|
||||
necessary:
|
||||
|
||||
# USB Host Controller Drivers
|
||||
#
|
||||
CONFIG_USB_EHCI_HCD=m
|
||||
CONFIG_USB_UHCI_HCD=m
|
||||
CONFIG_USB_OHCI_HCD=m
|
||||
|
||||
And finally:
|
||||
|
||||
# USB Multimedia devices
|
||||
#
|
||||
CONFIG_USB_ET61X251=m
|
||||
|
||||
|
||||
6. Module loading
|
||||
=================
|
||||
To use the driver, it is necessary to load the "et61x251" module into memory
|
||||
after every other module required: "videodev", "usbcore" and, depending on
|
||||
the USB host controller you have, "ehci-hcd", "uhci-hcd" or "ohci-hcd".
|
||||
|
||||
Loading can be done as shown below:
|
||||
|
||||
[root@localhost home]# modprobe et61x251
|
||||
|
||||
At this point the devices should be recognized. You can invoke "dmesg" to
|
||||
analyze kernel messages and verify that the loading process has gone well:
|
||||
|
||||
[user@localhost home]$ dmesg
|
||||
|
||||
|
||||
7. Module parameters
|
||||
====================
|
||||
Module parameters are listed below:
|
||||
-------------------------------------------------------------------------------
|
||||
Name: video_nr
|
||||
Type: short array (min = 0, max = 64)
|
||||
Syntax: <-1|n[,...]>
|
||||
Description: Specify V4L2 minor mode number:
|
||||
-1 = use next available
|
||||
n = use minor number n
|
||||
You can specify up to 64 cameras this way.
|
||||
For example:
|
||||
video_nr=-1,2,-1 would assign minor number 2 to the second
|
||||
registered camera and use auto for the first one and for every
|
||||
other camera.
|
||||
Default: -1
|
||||
-------------------------------------------------------------------------------
|
||||
Name: force_munmap
|
||||
Type: bool array (min = 0, max = 64)
|
||||
Syntax: <0|1[,...]>
|
||||
Description: Force the application to unmap previously mapped buffer memory
|
||||
before calling any VIDIOC_S_CROP or VIDIOC_S_FMT ioctl's. Not
|
||||
all the applications support this feature. This parameter is
|
||||
specific for each detected camera.
|
||||
0 = do not force memory unmapping
|
||||
1 = force memory unmapping (save memory)
|
||||
Default: 0
|
||||
-------------------------------------------------------------------------------
|
||||
Name: debug
|
||||
Type: ushort
|
||||
Syntax: <n>
|
||||
Description: Debugging information level, from 0 to 3:
|
||||
0 = none (use carefully)
|
||||
1 = critical errors
|
||||
2 = significant informations
|
||||
3 = more verbose messages
|
||||
Level 3 is useful for testing only, when only one device
|
||||
is used at the same time. It also shows some more informations
|
||||
about the hardware being detected. This module parameter can be
|
||||
changed at runtime thanks to the /sys filesystem interface.
|
||||
Default: 2
|
||||
-------------------------------------------------------------------------------
|
||||
|
||||
|
||||
8. Optional device control through "sysfs"
|
||||
==========================================
|
||||
If the kernel has been compiled with the CONFIG_VIDEO_ADV_DEBUG option enabled,
|
||||
it is possible to read and write both the ET61X[12]51 and the image sensor
|
||||
registers by using the "sysfs" filesystem interface.
|
||||
|
||||
There are four files in the /sys/class/video4linux/videoX directory for each
|
||||
registered camera: "reg", "val", "i2c_reg" and "i2c_val". The first two files
|
||||
control the ET61X[12]51 bridge, while the other two control the sensor chip.
|
||||
"reg" and "i2c_reg" hold the values of the current register index where the
|
||||
following reading/writing operations are addressed at through "val" and
|
||||
"i2c_val". Their use is not intended for end-users, unless you know what you
|
||||
are doing. Remember that you must be logged in as root before writing to them.
|
||||
|
||||
As an example, suppose we were to want to read the value contained in the
|
||||
register number 1 of the sensor register table - which is usually the product
|
||||
identifier - of the camera registered as "/dev/video0":
|
||||
|
||||
[root@localhost #] cd /sys/class/video4linux/video0
|
||||
[root@localhost #] echo 1 > i2c_reg
|
||||
[root@localhost #] cat i2c_val
|
||||
|
||||
Note that if the sensor registers can not be read, "cat" will fail.
|
||||
To avoid race conditions, all the I/O accesses to the files are serialized.
|
||||
|
||||
|
||||
9. Supported devices
|
||||
====================
|
||||
None of the names of the companies as well as their products will be mentioned
|
||||
here. They have never collaborated with the author, so no advertising.
|
||||
|
||||
From the point of view of a driver, what unambiguously identify a device are
|
||||
its vendor and product USB identifiers. Below is a list of known identifiers of
|
||||
devices mounting the ET61X[12]51 PC camera controllers:
|
||||
|
||||
Vendor ID Product ID
|
||||
--------- ----------
|
||||
0x102c 0x6151
|
||||
0x102c 0x6251
|
||||
0x102c 0x6253
|
||||
0x102c 0x6254
|
||||
0x102c 0x6255
|
||||
0x102c 0x6256
|
||||
0x102c 0x6257
|
||||
0x102c 0x6258
|
||||
0x102c 0x6259
|
||||
0x102c 0x625a
|
||||
0x102c 0x625b
|
||||
0x102c 0x625c
|
||||
0x102c 0x625d
|
||||
0x102c 0x625e
|
||||
0x102c 0x625f
|
||||
0x102c 0x6260
|
||||
0x102c 0x6261
|
||||
0x102c 0x6262
|
||||
0x102c 0x6263
|
||||
0x102c 0x6264
|
||||
0x102c 0x6265
|
||||
0x102c 0x6266
|
||||
0x102c 0x6267
|
||||
0x102c 0x6268
|
||||
0x102c 0x6269
|
||||
|
||||
The following image sensors are supported:
|
||||
|
||||
Model Manufacturer
|
||||
----- ------------
|
||||
TAS5130D1B Taiwan Advanced Sensor Corporation
|
||||
|
||||
All the available control settings of each image sensor are supported through
|
||||
the V4L2 interface.
|
||||
|
||||
|
||||
10. Notes for V4L2 application developers
|
||||
========================================
|
||||
This driver follows the V4L2 API specifications. In particular, it enforces two
|
||||
rules:
|
||||
|
||||
- exactly one I/O method, either "mmap" or "read", is associated with each
|
||||
file descriptor. Once it is selected, the application must close and reopen the
|
||||
device to switch to the other I/O method;
|
||||
|
||||
- although it is not mandatory, previously mapped buffer memory should always
|
||||
be unmapped before calling any "VIDIOC_S_CROP" or "VIDIOC_S_FMT" ioctl's.
|
||||
The same number of buffers as before will be allocated again to match the size
|
||||
of the new video frames, so you have to map the buffers again before any I/O
|
||||
attempts on them.
|
||||
|
||||
Consistently with the hardware limits, this driver also supports image
|
||||
downscaling with arbitrary scaling factors from 1 and 2 in both directions.
|
||||
However, the V4L2 API specifications don't correctly define how the scaling
|
||||
factor can be chosen arbitrarily by the "negotiation" of the "source" and
|
||||
"target" rectangles. To work around this flaw, we have added the convention
|
||||
that, during the negotiation, whenever the "VIDIOC_S_CROP" ioctl is issued, the
|
||||
scaling factor is restored to 1.
|
||||
|
||||
This driver supports two different video formats: the first one is the "8-bit
|
||||
Sequential Bayer" format and can be used to obtain uncompressed video data
|
||||
from the device through the current I/O method, while the second one provides
|
||||
"raw" compressed video data (without frame headers not related to the
|
||||
compressed data). The current compression quality may vary from 0 to 1 and can
|
||||
be selected or queried thanks to the VIDIOC_S_JPEGCOMP and VIDIOC_G_JPEGCOMP
|
||||
V4L2 ioctl's.
|
||||
|
||||
|
||||
11. Contact information
|
||||
=======================
|
||||
The author may be contacted by e-mail at <luca.risolia@studio.unibo.it>.
|
||||
|
||||
GPG/PGP encrypted e-mail's are accepted. The GPG key ID of the author is
|
||||
'FCE635A4'; the public 1024-bit key should be available at any keyserver;
|
||||
the fingerprint is: '88E8 F32F 7244 68BA 3958 5D40 99DA 5D2A FCE6 35A4'.
|
|
@ -17,16 +17,15 @@ Index
|
|||
7. Module parameters
|
||||
8. Optional device control through "sysfs"
|
||||
9. Supported devices
|
||||
10. How to add plug-in's for new image sensors
|
||||
11. Notes for V4L2 application developers
|
||||
12. Video frame formats
|
||||
13. Contact information
|
||||
14. Credits
|
||||
10. Notes for V4L2 application developers
|
||||
11. Video frame formats
|
||||
12. Contact information
|
||||
13. Credits
|
||||
|
||||
|
||||
1. Copyright
|
||||
============
|
||||
Copyright (C) 2004-2005 by Luca Risolia <luca.risolia@studio.unibo.it>
|
||||
Copyright (C) 2004-2006 by Luca Risolia <luca.risolia@studio.unibo.it>
|
||||
|
||||
|
||||
2. Disclaimer
|
||||
|
@ -54,9 +53,8 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|||
|
||||
4. Overview and features
|
||||
========================
|
||||
This driver attempts to support the video and audio streaming capabilities of
|
||||
the devices mounting the SONiX SN9C101, SN9C102 and SN9C103 PC Camera
|
||||
Controllers.
|
||||
This driver attempts to support the video interface of the devices mounting the
|
||||
SONiX SN9C101, SN9C102 and SN9C103 PC Camera Controllers.
|
||||
|
||||
It's worth to note that SONiX has never collaborated with the author during the
|
||||
development of this project, despite several requests for enough detailed
|
||||
|
@ -78,6 +76,7 @@ Some of the features of the driver are:
|
|||
- available mmap or read/poll methods for video streaming through isochronous
|
||||
data transfers;
|
||||
- automatic detection of image sensor;
|
||||
- support for built-in microphone interface;
|
||||
- support for any window resolutions and optional panning within the maximum
|
||||
pixel area of image sensor;
|
||||
- image downscaling with arbitrary scaling factors from 1, 2 and 4 in both
|
||||
|
@ -96,7 +95,7 @@ Some of the features of the driver are:
|
|||
parameters" paragraph);
|
||||
- up to 64 cameras can be handled at the same time; they can be connected and
|
||||
disconnected from the host many times without turning off the computer, if
|
||||
your system supports hotplugging;
|
||||
the system supports hotplugging;
|
||||
- no known bugs.
|
||||
|
||||
|
||||
|
@ -112,6 +111,12 @@ corresponding modules must be compiled:
|
|||
#
|
||||
CONFIG_VIDEO_DEV=m
|
||||
|
||||
To enable advanced debugging functionality on the device through /sysfs:
|
||||
|
||||
# Multimedia devices
|
||||
#
|
||||
CONFIG_VIDEO_ADV_DEBUG=y
|
||||
|
||||
# USB support
|
||||
#
|
||||
CONFIG_USB=m
|
||||
|
@ -125,6 +130,21 @@ necessary:
|
|||
CONFIG_USB_UHCI_HCD=m
|
||||
CONFIG_USB_OHCI_HCD=m
|
||||
|
||||
The SN9C103 controller also provides a built-in microphone interface. It is
|
||||
supported by the USB Audio driver thanks to the ALSA API:
|
||||
|
||||
# Sound
|
||||
#
|
||||
CONFIG_SOUND=y
|
||||
|
||||
# Advanced Linux Sound Architecture
|
||||
#
|
||||
CONFIG_SND=m
|
||||
|
||||
# USB devices
|
||||
#
|
||||
CONFIG_SND_USB_AUDIO=m
|
||||
|
||||
And finally:
|
||||
|
||||
# USB Multimedia devices
|
||||
|
@ -153,7 +173,7 @@ analyze kernel messages and verify that the loading process has gone well:
|
|||
Module parameters are listed below:
|
||||
-------------------------------------------------------------------------------
|
||||
Name: video_nr
|
||||
Type: int array (min = 0, max = 64)
|
||||
Type: short array (min = 0, max = 64)
|
||||
Syntax: <-1|n[,...]>
|
||||
Description: Specify V4L2 minor mode number:
|
||||
-1 = use next available
|
||||
|
@ -165,19 +185,19 @@ Description: Specify V4L2 minor mode number:
|
|||
other camera.
|
||||
Default: -1
|
||||
-------------------------------------------------------------------------------
|
||||
Name: force_munmap;
|
||||
Name: force_munmap
|
||||
Type: bool array (min = 0, max = 64)
|
||||
Syntax: <0|1[,...]>
|
||||
Description: Force the application to unmap previously mapped buffer memory
|
||||
before calling any VIDIOC_S_CROP or VIDIOC_S_FMT ioctl's. Not
|
||||
all the applications support this feature. This parameter is
|
||||
specific for each detected camera.
|
||||
0 = do not force memory unmapping"
|
||||
1 = force memory unmapping (save memory)"
|
||||
0 = do not force memory unmapping
|
||||
1 = force memory unmapping (save memory)
|
||||
Default: 0
|
||||
-------------------------------------------------------------------------------
|
||||
Name: debug
|
||||
Type: int
|
||||
Type: ushort
|
||||
Syntax: <n>
|
||||
Description: Debugging information level, from 0 to 3:
|
||||
0 = none (use carefully)
|
||||
|
@ -187,14 +207,15 @@ Description: Debugging information level, from 0 to 3:
|
|||
Level 3 is useful for testing only, when only one device
|
||||
is used. It also shows some more informations about the
|
||||
hardware being detected. This parameter can be changed at
|
||||
runtime thanks to the /sys filesystem.
|
||||
runtime thanks to the /sys filesystem interface.
|
||||
Default: 2
|
||||
-------------------------------------------------------------------------------
|
||||
|
||||
|
||||
8. Optional device control through "sysfs" [1]
|
||||
==========================================
|
||||
It is possible to read and write both the SN9C10x and the image sensor
|
||||
If the kernel has been compiled with the CONFIG_VIDEO_ADV_DEBUG option enabled,
|
||||
it is possible to read and write both the SN9C10x and the image sensor
|
||||
registers by using the "sysfs" filesystem interface.
|
||||
|
||||
Every time a supported device is recognized, a write-only file named "green" is
|
||||
|
@ -236,7 +257,7 @@ serialized.
|
|||
|
||||
The sysfs interface also provides the "frame_header" entry, which exports the
|
||||
frame header of the most recent requested and captured video frame. The header
|
||||
is 12-bytes long and is appended to every video frame by the SN9C10x
|
||||
is always 18-bytes long and is appended to every video frame by the SN9C10x
|
||||
controllers. As an example, this additional information can be used by the user
|
||||
application for implementing auto-exposure features via software.
|
||||
|
||||
|
@ -250,7 +271,8 @@ Byte # Value Description
|
|||
0x03 0xC4 Frame synchronisation pattern.
|
||||
0x04 0xC4 Frame synchronisation pattern.
|
||||
0x05 0x96 Frame synchronisation pattern.
|
||||
0x06 0x00 or 0x01 Unknown meaning. The exact value depends on the chip.
|
||||
0x06 0xXX Unknown meaning. The exact value depends on the chip;
|
||||
possible values are 0x00, 0x01 and 0x20.
|
||||
0x07 0xXX Variable value, whose bits are ff00uzzc, where ff is a
|
||||
frame counter, u is unknown, zz is a size indicator
|
||||
(00 = VGA, 01 = SIF, 10 = QSIF) and c stands for
|
||||
|
@ -267,12 +289,23 @@ Byte # Value Description
|
|||
times the area outside of the specified AE area. For
|
||||
images that are not pure white, the value scales down
|
||||
according to relative whiteness.
|
||||
according to relative whiteness.
|
||||
|
||||
The following bytes are used by the SN9C103 bridge only:
|
||||
|
||||
0x0C 0xXX Unknown meaning
|
||||
0x0D 0xXX Unknown meaning
|
||||
0x0E 0xXX Unknown meaning
|
||||
0x0F 0xXX Unknown meaning
|
||||
0x10 0xXX Unknown meaning
|
||||
0x11 0xXX Unknown meaning
|
||||
|
||||
The AE area (sx, sy, ex, ey) in the active window can be set by programming the
|
||||
registers 0x1c, 0x1d, 0x1e and 0x1f of the SN9C10x controllers, where one unit
|
||||
corresponds to 32 pixels.
|
||||
|
||||
[1] The frame header has been documented by Bertrik Sikken.
|
||||
[1] Part of the meaning of the frame header has been documented by Bertrik
|
||||
Sikken.
|
||||
|
||||
|
||||
9. Supported devices
|
||||
|
@ -298,6 +331,7 @@ Vendor ID Product ID
|
|||
0x0c45 0x602b
|
||||
0x0c45 0x602c
|
||||
0x0c45 0x602d
|
||||
0x0c45 0x602e
|
||||
0x0c45 0x6030
|
||||
0x0c45 0x6080
|
||||
0x0c45 0x6082
|
||||
|
@ -348,18 +382,7 @@ appreciated. Non-available hardware will not be supported by the author of this
|
|||
driver.
|
||||
|
||||
|
||||
10. How to add plug-in's for new image sensors
|
||||
==============================================
|
||||
It should be easy to write plug-in's for new sensors by using the small API
|
||||
that has been created for this purpose, which is present in "sn9c102_sensor.h"
|
||||
(documentation is included there). As an example, have a look at the code in
|
||||
"sn9c102_pas106b.c", which uses the mentioned interface.
|
||||
|
||||
At the moment, possible unsupported image sensors are: CIS-VF10 (VGA),
|
||||
OV7620 (VGA), OV7630 (VGA).
|
||||
|
||||
|
||||
11. Notes for V4L2 application developers
|
||||
10. Notes for V4L2 application developers
|
||||
=========================================
|
||||
This driver follows the V4L2 API specifications. In particular, it enforces two
|
||||
rules:
|
||||
|
@ -394,7 +417,7 @@ initialized (as described in the documentation of the API for the image sensors
|
|||
supplied by this driver).
|
||||
|
||||
|
||||
12. Video frame formats [1]
|
||||
11. Video frame formats [1]
|
||||
=======================
|
||||
The SN9C10x PC Camera Controllers can send images in two possible video
|
||||
formats over the USB: either native "Sequential RGB Bayer" or Huffman
|
||||
|
@ -455,7 +478,7 @@ The following Huffman codes have been found:
|
|||
documented by Bertrik Sikken.
|
||||
|
||||
|
||||
13. Contact information
|
||||
12. Contact information
|
||||
=======================
|
||||
The author may be contacted by e-mail at <luca.risolia@studio.unibo.it>.
|
||||
|
||||
|
@ -464,7 +487,7 @@ GPG/PGP encrypted e-mail's are accepted. The GPG key ID of the author is
|
|||
the fingerprint is: '88E8 F32F 7244 68BA 3958 5D40 99DA 5D2A FCE6 35A4'.
|
||||
|
||||
|
||||
14. Credits
|
||||
13. Credits
|
||||
===========
|
||||
Many thanks to following persons for their contribute (listed in alphabetical
|
||||
order):
|
||||
|
@ -480,5 +503,5 @@ order):
|
|||
- Bertrik Sikken, who reverse-engineered and documented the Huffman compression
|
||||
algorithm used in the SN9C10x controllers and implemented the first decoder;
|
||||
- Mizuno Takafumi for the donation of a webcam;
|
||||
- An "anonymous" donator (who didn't want his name to be revealed) for the
|
||||
- an "anonymous" donator (who didn't want his name to be revealed) for the
|
||||
donation of a webcam.
|
||||
|
|
|
@ -57,16 +57,12 @@ based cameras should be supported as well.
|
|||
The driver is divided into two modules: the basic one, "w9968cf", is needed for
|
||||
the supported devices to work; the second one, "w9968cf-vpp", is an optional
|
||||
module, which provides some useful video post-processing functions like video
|
||||
decoding, up-scaling and colour conversions. Once the driver is installed,
|
||||
every time an application tries to open a recognized device, "w9968cf" checks
|
||||
the presence of the "w9968cf-vpp" module and loads it automatically by default.
|
||||
decoding, up-scaling and colour conversions.
|
||||
|
||||
Please keep in mind that official kernels do not include the second module for
|
||||
performance purposes. However it is always recommended to download and install
|
||||
the latest and complete release of the driver, replacing the existing one, if
|
||||
present: it will be still even possible not to load the "w9968cf-vpp" module at
|
||||
all, if you ever want to. Another important missing feature of the version in
|
||||
the official Linux 2.4 kernels is the writeable /proc filesystem interface.
|
||||
Note that the official kernels do neither include nor support the second
|
||||
module for performance purposes. Therefore, it is always recommended to
|
||||
download and install the latest and complete release of the driver,
|
||||
replacing the existing one, if present.
|
||||
|
||||
The latest and full-featured version of the W996[87]CF driver can be found at:
|
||||
http://www.linux-projects.org. Please refer to the documentation included in
|
||||
|
@ -201,22 +197,6 @@ Note: The kernel must be compiled with the CONFIG_KMOD option
|
|||
enabled for the 'ovcamchip' module to be loaded and for
|
||||
this parameter to be present.
|
||||
-------------------------------------------------------------------------------
|
||||
Name: vppmod_load
|
||||
Type: bool
|
||||
Syntax: <0|1>
|
||||
Description: Automatic 'w9968cf-vpp' module loading: 0 disabled, 1 enabled.
|
||||
If enabled, every time an application attempts to open a
|
||||
camera, 'insmod' searches for the video post-processing module
|
||||
in the system and loads it automatically (if present).
|
||||
The optional 'w9968cf-vpp' module adds extra image manipulation
|
||||
capabilities to the 'w9968cf' module,like software up-scaling,
|
||||
colour conversions and video decompression for very high frame
|
||||
rates.
|
||||
Default: 1
|
||||
Note: The kernel must be compiled with the CONFIG_KMOD option
|
||||
enabled for the 'w9968cf-vpp' module to be loaded and for
|
||||
this parameter to be present.
|
||||
-------------------------------------------------------------------------------
|
||||
Name: simcams
|
||||
Type: int
|
||||
Syntax: <n>
|
||||
|
|
|
@ -42,4 +42,4 @@
|
|||
41 -> Hauppauge WinTV-HVR1100 DVB-T/Hybrid (Low Profile) [0070:9800,0070:9802]
|
||||
42 -> digitalnow DNTV Live! DVB-T Pro [1822:0025]
|
||||
43 -> KWorld/VStream XPert DVB-T with cx22702 [17de:08a1]
|
||||
44 -> DViCO FusionHDTV DVB-T Dual Digital [18ac:db50]
|
||||
44 -> DViCO FusionHDTV DVB-T Dual Digital [18ac:db50,18ac:db54]
|
||||
|
|
|
@ -1,7 +1,7 @@
|
|||
0 -> UNKNOWN/GENERIC
|
||||
1 -> Proteus Pro [philips reference design] [1131:2001,1131:2001]
|
||||
2 -> LifeView FlyVIDEO3000 [5168:0138,4e42:0138]
|
||||
3 -> LifeView FlyVIDEO2000 [5168:0138]
|
||||
3 -> LifeView/Typhoon FlyVIDEO2000 [5168:0138,4e42:0138]
|
||||
4 -> EMPRESS [1131:6752]
|
||||
5 -> SKNet Monster TV [1131:4e85]
|
||||
6 -> Tevion MD 9717
|
||||
|
@ -53,12 +53,12 @@
|
|||
52 -> AverMedia AverTV/305 [1461:2108]
|
||||
53 -> ASUS TV-FM 7135 [1043:4845]
|
||||
54 -> LifeView FlyTV Platinum FM [5168:0214,1489:0214]
|
||||
55 -> LifeView FlyDVB-T DUO [5168:0502,5168:0306]
|
||||
55 -> LifeView FlyDVB-T DUO [5168:0306]
|
||||
56 -> Avermedia AVerTV 307 [1461:a70a]
|
||||
57 -> Avermedia AVerTV GO 007 FM [1461:f31f]
|
||||
58 -> ADS Tech Instant TV (saa7135) [1421:0350,1421:0351,1421:0370,1421:1370]
|
||||
59 -> Kworld/Tevion V-Stream Xpert TV PVR7134
|
||||
60 -> Typhoon DVB-T Duo Digital/Analog Cardbus [4e42:0502]
|
||||
60 -> LifeView/Typhoon FlyDVB-T Duo Cardbus [5168:0502,4e42:0502]
|
||||
61 -> Philips TOUGH DVB-T reference design [1131:2004]
|
||||
62 -> Compro VideoMate TV Gold+II
|
||||
63 -> Kworld Xpert TV PVR7134
|
||||
|
|
129
Documentation/vm/page_migration
Normal file
129
Documentation/vm/page_migration
Normal file
|
@ -0,0 +1,129 @@
|
|||
Page migration
|
||||
--------------
|
||||
|
||||
Page migration allows the moving of the physical location of pages between
|
||||
nodes in a numa system while the process is running. This means that the
|
||||
virtual addresses that the process sees do not change. However, the
|
||||
system rearranges the physical location of those pages.
|
||||
|
||||
The main intend of page migration is to reduce the latency of memory access
|
||||
by moving pages near to the processor where the process accessing that memory
|
||||
is running.
|
||||
|
||||
Page migration allows a process to manually relocate the node on which its
|
||||
pages are located through the MF_MOVE and MF_MOVE_ALL options while setting
|
||||
a new memory policy. The pages of process can also be relocated
|
||||
from another process using the sys_migrate_pages() function call. The
|
||||
migrate_pages function call takes two sets of nodes and moves pages of a
|
||||
process that are located on the from nodes to the destination nodes.
|
||||
|
||||
Manual migration is very useful if for example the scheduler has relocated
|
||||
a process to a processor on a distant node. A batch scheduler or an
|
||||
administrator may detect the situation and move the pages of the process
|
||||
nearer to the new processor. At some point in the future we may have
|
||||
some mechanism in the scheduler that will automatically move the pages.
|
||||
|
||||
Larger installations usually partition the system using cpusets into
|
||||
sections of nodes. Paul Jackson has equipped cpusets with the ability to
|
||||
move pages when a task is moved to another cpuset. This allows automatic
|
||||
control over locality of a process. If a task is moved to a new cpuset
|
||||
then also all its pages are moved with it so that the performance of the
|
||||
process does not sink dramatically (as is the case today).
|
||||
|
||||
Page migration allows the preservation of the relative location of pages
|
||||
within a group of nodes for all migration techniques which will preserve a
|
||||
particular memory allocation pattern generated even after migrating a
|
||||
process. This is necessary in order to preserve the memory latencies.
|
||||
Processes will run with similar performance after migration.
|
||||
|
||||
Page migration occurs in several steps. First a high level
|
||||
description for those trying to use migrate_pages() and then
|
||||
a low level description of how the low level details work.
|
||||
|
||||
A. Use of migrate_pages()
|
||||
-------------------------
|
||||
|
||||
1. Remove pages from the LRU.
|
||||
|
||||
Lists of pages to be migrated are generated by scanning over
|
||||
pages and moving them into lists. This is done by
|
||||
calling isolate_lru_page() or __isolate_lru_page().
|
||||
Calling isolate_lru_page increases the references to the page
|
||||
so that it cannot vanish under us.
|
||||
|
||||
2. Generate a list of newly allocates page to move the contents
|
||||
of the first list to.
|
||||
|
||||
3. The migrate_pages() function is called which attempts
|
||||
to do the migration. It returns the moved pages in the
|
||||
list specified as the third parameter and the failed
|
||||
migrations in the fourth parameter. The first parameter
|
||||
will contain the pages that could still be retried.
|
||||
|
||||
4. The leftover pages of various types are returned
|
||||
to the LRU using putback_to_lru_pages() or otherwise
|
||||
disposed of. The pages will still have the refcount as
|
||||
increased by isolate_lru_pages()!
|
||||
|
||||
B. Operation of migrate_pages()
|
||||
--------------------------------
|
||||
|
||||
migrate_pages does several passes over its list of pages. A page is moved
|
||||
if all references to a page are removable at the time.
|
||||
|
||||
Steps:
|
||||
|
||||
1. Lock the page to be migrated
|
||||
|
||||
2. Insure that writeback is complete.
|
||||
|
||||
3. Make sure that the page has assigned swap cache entry if
|
||||
it is an anonyous page. The swap cache reference is necessary
|
||||
to preserve the information contain in the page table maps.
|
||||
|
||||
4. Prep the new page that we want to move to. It is locked
|
||||
and set to not being uptodate so that all accesses to the new
|
||||
page immediately lock while we are moving references.
|
||||
|
||||
5. All the page table references to the page are either dropped (file backed)
|
||||
or converted to swap references (anonymous pages). This should decrease the
|
||||
reference count.
|
||||
|
||||
6. The radix tree lock is taken
|
||||
|
||||
7. The refcount of the page is examined and we back out if references remain
|
||||
otherwise we know that we are the only one referencing this page.
|
||||
|
||||
8. The radix tree is checked and if it does not contain the pointer to this
|
||||
page then we back out.
|
||||
|
||||
9. The mapping is checked. If the mapping is gone then a truncate action may
|
||||
be in progress and we back out.
|
||||
|
||||
10. The new page is prepped with some settings from the old page so that accesses
|
||||
to the new page will be discovered to have the correct settings.
|
||||
|
||||
11. The radix tree is changed to point to the new page.
|
||||
|
||||
12. The reference count of the old page is dropped because the reference has now
|
||||
been removed.
|
||||
|
||||
13. The radix tree lock is dropped.
|
||||
|
||||
14. The page contents are copied to the new page.
|
||||
|
||||
15. The remaining page flags are copied to the new page.
|
||||
|
||||
16. The old page flags are cleared to indicate that the page does
|
||||
not use any information anymore.
|
||||
|
||||
17. Queued up writeback on the new page is triggered.
|
||||
|
||||
18. If swap pte's were generated for the page then remove them again.
|
||||
|
||||
19. The locks are dropped from the old and new page.
|
||||
|
||||
20. The new page is moved to the LRU.
|
||||
|
||||
Christoph Lameter, December 19, 2005.
|
||||
|
|
@ -40,6 +40,18 @@ APICs
|
|||
no_timer_check Don't check the IO-APIC timer. This can work around
|
||||
problems with incorrect timer initialization on some boards.
|
||||
|
||||
apicmaintimer Run time keeping from the local APIC timer instead
|
||||
of using the PIT/HPET interrupt for this. This is useful
|
||||
when the PIT/HPET interrupts are unreliable.
|
||||
|
||||
noapicmaintimer Don't do time keeping using the APIC timer.
|
||||
Useful when this option was auto selected, but doesn't work.
|
||||
|
||||
apicpmtimer
|
||||
Do APIC timer calibration using the pmtimer. Implies
|
||||
apicmaintimer. Useful when your PIT timer is totally
|
||||
broken.
|
||||
|
||||
Early Console
|
||||
|
||||
syntax: earlyprintk=vga
|
||||
|
|
55
MAINTAINERS
55
MAINTAINERS
|
@ -540,7 +540,8 @@ S: Supported
|
|||
|
||||
BTTV VIDEO4LINUX DRIVER
|
||||
P: Mauro Carvalho Chehab
|
||||
M: mchehab@brturbo.com.br
|
||||
M: mchehab@infradead.org
|
||||
M: v4l-dvb-maintainer@linuxtv.org
|
||||
L: video4linux-list@redhat.com
|
||||
W: http://linuxtv.org
|
||||
T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb.git
|
||||
|
@ -557,7 +558,8 @@ S: Supported
|
|||
|
||||
CONFIGFS
|
||||
P: Joel Becker
|
||||
M: Joel Becker <joel.becker@oracle.com>
|
||||
M: joel.becker@oracle.com
|
||||
L: linux-kernel@vger.kernel.org
|
||||
S: Supported
|
||||
|
||||
CIRRUS LOGIC GENERIC FBDEV DRIVER
|
||||
|
@ -836,11 +838,12 @@ S: Maintained
|
|||
|
||||
DVB SUBSYSTEM AND DRIVERS
|
||||
P: LinuxTV.org Project
|
||||
M: linux-dvb-maintainer@linuxtv.org
|
||||
M: mchehab@infradead.org
|
||||
M: v4l-dvb-maintainer@linuxtv.org
|
||||
L: linux-dvb@linuxtv.org (subscription required)
|
||||
W: http://linuxtv.org/
|
||||
T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb.git
|
||||
S: Supported
|
||||
S: Maintained
|
||||
|
||||
EATA-DMA SCSI DRIVER
|
||||
P: Michael Neuffer
|
||||
|
@ -928,6 +931,12 @@ M: sct@redhat.com, akpm@osdl.org, adilger@clusterfs.com
|
|||
L: ext3-users@redhat.com
|
||||
S: Maintained
|
||||
|
||||
F71805F HARDWARE MONITORING DRIVER
|
||||
P: Jean Delvare
|
||||
M: khali@linux-fr.org
|
||||
L: lm-sensors@lm-sensors.org
|
||||
S: Maintained
|
||||
|
||||
FARSYNC SYNCHRONOUS DRIVER
|
||||
P: Kevin Curtis
|
||||
M: kevin.curtis@farsite.co.uk
|
||||
|
@ -1176,8 +1185,8 @@ T: git kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6.git
|
|||
S: Maintained
|
||||
|
||||
SN-IA64 (Itanium) SUB-PLATFORM
|
||||
P: Greg Edwards
|
||||
M: edwardsg@sgi.com
|
||||
P: Jes Sorensen
|
||||
M: jes@sgi.com
|
||||
L: linux-altix@sgi.com
|
||||
L: linux-ia64@vger.kernel.org
|
||||
W: http://www.sgi.com/altix
|
||||
|
@ -1984,7 +1993,6 @@ M: philb@gnu.org
|
|||
P: Tim Waugh
|
||||
M: tim@cyberelk.net
|
||||
P: David Campbell
|
||||
M: campbell@torque.net
|
||||
P: Andrea Arcangeli
|
||||
M: andrea@suse.de
|
||||
L: linux-parport@lists.infradead.org
|
||||
|
@ -2224,7 +2232,23 @@ P: Martin Schwidefsky
|
|||
M: schwidefsky@de.ibm.com
|
||||
M: linux390@de.ibm.com
|
||||
L: linux-390@vm.marist.edu
|
||||
W: http://oss.software.ibm.com/developerworks/opensource/linux390
|
||||
W: http://www.ibm.com/developerworks/linux/linux390/
|
||||
S: Supported
|
||||
|
||||
S390 NETWORK DRIVERS
|
||||
P: Frank Pavlic
|
||||
M: fpavlic@de.ibm.com
|
||||
M: linux390@de.ibm.com
|
||||
L: linux-390@vm.marist.edu
|
||||
W: http://www.ibm.com/developerworks/linux/linux390/
|
||||
S: Supported
|
||||
|
||||
S390 ZFCP DRIVER
|
||||
P: Andreas Herrmann
|
||||
M: aherrman@de.ibm.com
|
||||
M: linux390@de.ibm.com
|
||||
L: linux-390@vm.marist.edu
|
||||
W: http://www.ibm.com/developerworks/linux/linux390/
|
||||
S: Supported
|
||||
|
||||
SAA7146 VIDEO4LINUX-2 DRIVER
|
||||
|
@ -2298,7 +2322,7 @@ S: Supported
|
|||
|
||||
SELINUX SECURITY MODULE
|
||||
P: Stephen Smalley
|
||||
M: sds@epoch.ncsc.mil
|
||||
M: sds@tycho.nsa.gov
|
||||
P: James Morris
|
||||
M: jmorris@namei.org
|
||||
L: linux-kernel@vger.kernel.org (kernel issues)
|
||||
|
@ -2673,6 +2697,14 @@ M: dbrownell@users.sourceforge.net
|
|||
L: linux-usb-devel@lists.sourceforge.net
|
||||
S: Maintained
|
||||
|
||||
USB ET61X[12]51 DRIVER
|
||||
P: Luca Risolia
|
||||
M: luca.risolia@studio.unibo.it
|
||||
L: linux-usb-devel@lists.sourceforge.net
|
||||
L: video4linux-list@redhat.com
|
||||
W: http://www.linux-projects.org
|
||||
S: Maintained
|
||||
|
||||
USB HID/HIDBP DRIVERS
|
||||
P: Vojtech Pavlik
|
||||
M: vojtech@suse.cz
|
||||
|
@ -2836,6 +2868,7 @@ USB SN9C10x DRIVER
|
|||
P: Luca Risolia
|
||||
M: luca.risolia@studio.unibo.it
|
||||
L: linux-usb-devel@lists.sourceforge.net
|
||||
L: video4linux-list@redhat.com
|
||||
W: http://www.linux-projects.org
|
||||
S: Maintained
|
||||
|
||||
|
@ -2865,6 +2898,7 @@ USB W996[87]CF DRIVER
|
|||
P: Luca Risolia
|
||||
M: luca.risolia@studio.unibo.it
|
||||
L: linux-usb-devel@lists.sourceforge.net
|
||||
L: video4linux-list@redhat.com
|
||||
W: http://www.linux-projects.org
|
||||
S: Maintained
|
||||
|
||||
|
@ -2946,7 +2980,8 @@ S: Maintained
|
|||
|
||||
VIDEO FOR LINUX
|
||||
P: Mauro Carvalho Chehab
|
||||
M: mchehab@brturbo.com.br
|
||||
M: mchehab@infradead.org
|
||||
M: v4l-dvb-maintainer@linuxtv.org
|
||||
L: video4linux-list@redhat.com
|
||||
W: http://linuxtv.org
|
||||
T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb.git
|
||||
|
|
11
Makefile
11
Makefile
|
@ -1,7 +1,7 @@
|
|||
VERSION = 2
|
||||
PATCHLEVEL = 6
|
||||
SUBLEVEL = 16
|
||||
EXTRAVERSION =-rc1
|
||||
EXTRAVERSION =-rc4
|
||||
NAME=Sliding Snow Leopard
|
||||
|
||||
# *DOCUMENTATION*
|
||||
|
@ -106,13 +106,12 @@ KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
|
|||
$(if $(KBUILD_OUTPUT),, \
|
||||
$(error output directory "$(saved-output)" does not exist))
|
||||
|
||||
.PHONY: $(MAKECMDGOALS) cdbuilddir
|
||||
$(MAKECMDGOALS) _all: cdbuilddir
|
||||
.PHONY: $(MAKECMDGOALS)
|
||||
|
||||
cdbuilddir:
|
||||
$(filter-out _all,$(MAKECMDGOALS)) _all:
|
||||
$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
|
||||
KBUILD_SRC=$(CURDIR) \
|
||||
KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $(MAKECMDGOALS)
|
||||
KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@
|
||||
|
||||
# Leave processing to above invocation of make
|
||||
skip-makefile := 1
|
||||
|
@ -442,7 +441,7 @@ export KBUILD_DEFCONFIG
|
|||
config %config: scripts_basic outputmakefile FORCE
|
||||
$(Q)mkdir -p include/linux
|
||||
$(Q)$(MAKE) $(build)=scripts/kconfig $@
|
||||
$(Q)$(MAKE) .kernelrelease
|
||||
$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease
|
||||
|
||||
else
|
||||
# ===========================================================================
|
||||
|
|
|
@ -28,6 +28,7 @@ void foo(void)
|
|||
DEFINE(TASK_GID, offsetof(struct task_struct, gid));
|
||||
DEFINE(TASK_EGID, offsetof(struct task_struct, egid));
|
||||
DEFINE(TASK_REAL_PARENT, offsetof(struct task_struct, real_parent));
|
||||
DEFINE(TASK_GROUP_LEADER, offsetof(struct task_struct, group_leader));
|
||||
DEFINE(TASK_TGID, offsetof(struct task_struct, tgid));
|
||||
BLANK();
|
||||
|
||||
|
|
|
@ -879,17 +879,19 @@ sys_getxpid:
|
|||
|
||||
/* See linux/kernel/timer.c sys_getppid for discussion
|
||||
about this loop. */
|
||||
ldq $3, TASK_REAL_PARENT($2)
|
||||
1: ldl $1, TASK_TGID($3)
|
||||
ldq $3, TASK_GROUP_LEADER($2)
|
||||
ldq $4, TASK_REAL_PARENT($3)
|
||||
ldl $0, TASK_TGID($2)
|
||||
1: ldl $1, TASK_TGID($4)
|
||||
#ifdef CONFIG_SMP
|
||||
mov $3, $4
|
||||
mov $4, $5
|
||||
mb
|
||||
ldq $3, TASK_REAL_PARENT($2)
|
||||
cmpeq $3, $4, $4
|
||||
beq $4, 1b
|
||||
ldq $3, TASK_GROUP_LEADER($2)
|
||||
ldq $4, TASK_REAL_PARENT($3)
|
||||
cmpeq $4, $5, $5
|
||||
beq $5, 1b
|
||||
#endif
|
||||
stq $1, 80($sp)
|
||||
ldl $0, TASK_TGID($2)
|
||||
ret
|
||||
.end sys_getxpid
|
||||
|
||||
|
|
|
@ -68,34 +68,32 @@ show_interrupts(struct seq_file *p, void *v)
|
|||
#ifdef CONFIG_SMP
|
||||
int j;
|
||||
#endif
|
||||
int i = *(loff_t *) v;
|
||||
int irq = *(loff_t *) v;
|
||||
struct irqaction * action;
|
||||
unsigned long flags;
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
if (i == 0) {
|
||||
if (irq == 0) {
|
||||
seq_puts(p, " ");
|
||||
for (i = 0; i < NR_CPUS; i++)
|
||||
if (cpu_online(i))
|
||||
seq_printf(p, "CPU%d ", i);
|
||||
for_each_online_cpu(j)
|
||||
seq_printf(p, "CPU%d ", j);
|
||||
seq_putc(p, '\n');
|
||||
}
|
||||
#endif
|
||||
|
||||
if (i < ACTUAL_NR_IRQS) {
|
||||
spin_lock_irqsave(&irq_desc[i].lock, flags);
|
||||
action = irq_desc[i].action;
|
||||
if (irq < ACTUAL_NR_IRQS) {
|
||||
spin_lock_irqsave(&irq_desc[irq].lock, flags);
|
||||
action = irq_desc[irq].action;
|
||||
if (!action)
|
||||
goto unlock;
|
||||
seq_printf(p, "%3d: ",i);
|
||||
seq_printf(p, "%3d: ", irq);
|
||||
#ifndef CONFIG_SMP
|
||||
seq_printf(p, "%10u ", kstat_irqs(i));
|
||||
seq_printf(p, "%10u ", kstat_irqs(irq));
|
||||
#else
|
||||
for (j = 0; j < NR_CPUS; j++)
|
||||
if (cpu_online(j))
|
||||
seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
|
||||
for_each_online_cpu(j)
|
||||
seq_printf(p, "%10u ", kstat_cpu(j).irqs[irq]);
|
||||
#endif
|
||||
seq_printf(p, " %14s", irq_desc[i].handler->typename);
|
||||
seq_printf(p, " %14s", irq_desc[irq].handler->typename);
|
||||
seq_printf(p, " %c%s",
|
||||
(action->flags & SA_INTERRUPT)?'+':' ',
|
||||
action->name);
|
||||
|
@ -108,13 +106,12 @@ show_interrupts(struct seq_file *p, void *v)
|
|||
|
||||
seq_putc(p, '\n');
|
||||
unlock:
|
||||
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
|
||||
} else if (i == ACTUAL_NR_IRQS) {
|
||||
spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
|
||||
} else if (irq == ACTUAL_NR_IRQS) {
|
||||
#ifdef CONFIG_SMP
|
||||
seq_puts(p, "IPI: ");
|
||||
for (i = 0; i < NR_CPUS; i++)
|
||||
if (cpu_online(i))
|
||||
seq_printf(p, "%10lu ", cpu_data[i].ipi_count);
|
||||
for_each_online_cpu(j)
|
||||
seq_printf(p, "%10lu ", cpu_data[j].ipi_count);
|
||||
seq_putc(p, '\n');
|
||||
#endif
|
||||
seq_printf(p, "ERR: %10lu\n", irq_err_count);
|
||||
|
@ -122,7 +119,6 @@ unlock:
|
|||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* handle_irq handles all normal device IRQ's (the special
|
||||
* SMP cross-CPU interrupts have their own specific
|
||||
|
|
|
@ -73,9 +73,6 @@ cpumask_t cpu_online_map;
|
|||
|
||||
EXPORT_SYMBOL(cpu_online_map);
|
||||
|
||||
/* cpus reported in the hwrpb */
|
||||
static unsigned long hwrpb_cpu_present_mask __initdata = 0;
|
||||
|
||||
int smp_num_probed; /* Internal processor count */
|
||||
int smp_num_cpus = 1; /* Number that came online. */
|
||||
|
||||
|
@ -442,7 +439,7 @@ setup_smp(void)
|
|||
if ((cpu->flags & 0x1cc) == 0x1cc) {
|
||||
smp_num_probed++;
|
||||
/* Assume here that "whami" == index */
|
||||
hwrpb_cpu_present_mask |= (1UL << i);
|
||||
cpu_set(i, cpu_possible_map);
|
||||
cpu->pal_revision = boot_cpu_palrev;
|
||||
}
|
||||
|
||||
|
@ -453,12 +450,12 @@ setup_smp(void)
|
|||
}
|
||||
} else {
|
||||
smp_num_probed = 1;
|
||||
hwrpb_cpu_present_mask = (1UL << boot_cpuid);
|
||||
cpu_set(boot_cpuid, cpu_possible_map);
|
||||
}
|
||||
cpu_present_mask = cpumask_of_cpu(boot_cpuid);
|
||||
|
||||
printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_mask = %lx\n",
|
||||
smp_num_probed, hwrpb_cpu_present_mask);
|
||||
smp_num_probed, cpu_possible_map.bits[0]);
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -467,8 +464,6 @@ setup_smp(void)
|
|||
void __init
|
||||
smp_prepare_cpus(unsigned int max_cpus)
|
||||
{
|
||||
int cpu_count, i;
|
||||
|
||||
/* Take care of some initial bookkeeping. */
|
||||
memset(ipi_data, 0, sizeof(ipi_data));
|
||||
|
||||
|
@ -486,19 +481,7 @@ smp_prepare_cpus(unsigned int max_cpus)
|
|||
|
||||
printk(KERN_INFO "SMP starting up secondaries.\n");
|
||||
|
||||
cpu_count = 1;
|
||||
for (i = 0; (i < NR_CPUS) && (cpu_count < max_cpus); i++) {
|
||||
if (i == boot_cpuid)
|
||||
continue;
|
||||
|
||||
if (((hwrpb_cpu_present_mask >> i) & 1) == 0)
|
||||
continue;
|
||||
|
||||
cpu_set(i, cpu_possible_map);
|
||||
cpu_count++;
|
||||
}
|
||||
|
||||
smp_num_cpus = cpu_count;
|
||||
smp_num_cpus = smp_num_probed;
|
||||
}
|
||||
|
||||
void __devinit
|
||||
|
|
|
@ -10,9 +10,9 @@ config ARM
|
|||
default y
|
||||
help
|
||||
The ARM series is a line of low-power-consumption RISC chip designs
|
||||
licensed by ARM ltd and targeted at embedded applications and
|
||||
licensed by ARM Ltd and targeted at embedded applications and
|
||||
handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
|
||||
manufactured, but legacy ARM-based PC hardware remains popular in
|
||||
manufactured, but legacy ARM-based PC hardware remains popular in
|
||||
Europe. There is an ARM Linux project with a web page at
|
||||
<http://www.arm.linux.org.uk/>.
|
||||
|
||||
|
@ -69,6 +69,9 @@ config GENERIC_ISA_DMA
|
|||
config FIQ
|
||||
bool
|
||||
|
||||
config ARCH_MTD_XIP
|
||||
bool
|
||||
|
||||
source "init/Kconfig"
|
||||
|
||||
menu "System Type"
|
||||
|
@ -81,45 +84,62 @@ config ARCH_CLPS7500
|
|||
bool "Cirrus-CL-PS7500FE"
|
||||
select TIMER_ACORN
|
||||
select ISA
|
||||
help
|
||||
Support for the Cirrus Logic PS7500FE system-on-a-chip.
|
||||
|
||||
config ARCH_CLPS711X
|
||||
bool "CLPS711x/EP721x-based"
|
||||
help
|
||||
Support for Cirrus Logic 711x/721x based boards.
|
||||
|
||||
config ARCH_CO285
|
||||
bool "Co-EBSA285"
|
||||
select FOOTBRIDGE
|
||||
select FOOTBRIDGE_ADDIN
|
||||
help
|
||||
Support for Intel's EBSA285 companion chip.
|
||||
|
||||
config ARCH_EBSA110
|
||||
bool "EBSA-110"
|
||||
select ISA
|
||||
help
|
||||
This is an evaluation board for the StrongARM processor available
|
||||
from Digital. It has limited hardware on-board, including an onboard
|
||||
from Digital. It has limited hardware on-board, including an
|
||||
Ethernet interface, two PCMCIA sockets, two serial ports and a
|
||||
parallel port.
|
||||
|
||||
config ARCH_FOOTBRIDGE
|
||||
bool "FootBridge"
|
||||
select FOOTBRIDGE
|
||||
help
|
||||
Support for systems based on the DC21285 companion chip
|
||||
("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
|
||||
|
||||
config ARCH_INTEGRATOR
|
||||
bool "Integrator"
|
||||
select ARM_AMBA
|
||||
select ICST525
|
||||
help
|
||||
Support for ARM's Integrator platform.
|
||||
|
||||
config ARCH_IOP3XX
|
||||
bool "IOP3xx-based"
|
||||
select PCI
|
||||
help
|
||||
Support for Intel's IOP3XX (XScale) family of processors.
|
||||
|
||||
config ARCH_IXP4XX
|
||||
bool "IXP4xx-based"
|
||||
select DMABOUNCE
|
||||
select PCI
|
||||
help
|
||||
Support for Intel's IXP4XX (XScale) family of processors.
|
||||
|
||||
config ARCH_IXP2000
|
||||
bool "IXP2400/2800-based"
|
||||
select PCI
|
||||
help
|
||||
Support for Intel's IXP2400/2800 (XScale) family of processors.
|
||||
|
||||
config ARCH_L7200
|
||||
bool "LinkUp-L7200"
|
||||
|
@ -136,6 +156,9 @@ config ARCH_L7200
|
|||
|
||||
config ARCH_PXA
|
||||
bool "PXA2xx-based"
|
||||
select ARCH_MTD_XIP
|
||||
help
|
||||
Support for Intel's PXA2XX processor line.
|
||||
|
||||
config ARCH_RPC
|
||||
bool "RiscPC"
|
||||
|
@ -152,19 +175,25 @@ config ARCH_SA1100
|
|||
bool "SA1100-based"
|
||||
select ISA
|
||||
select ARCH_DISCONTIGMEM_ENABLE
|
||||
select ARCH_MTD_XIP
|
||||
help
|
||||
Support for StrongARM 11x0 based boards.
|
||||
|
||||
config ARCH_S3C2410
|
||||
bool "Samsung S3C2410"
|
||||
help
|
||||
Samsung S3C2410X CPU based systems, such as the Simtec Electronics
|
||||
BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
|
||||
the Samsung SMDK2410 development board (and derviatives).
|
||||
the Samsung SMDK2410 development board (and derivatives).
|
||||
|
||||
config ARCH_SHARK
|
||||
bool "Shark"
|
||||
select ISA
|
||||
select ISA_DMA
|
||||
select PCI
|
||||
help
|
||||
Support for the StrongARM based Digital DNARD machine, also known
|
||||
as "Shark" (<http://www.shark-linux.de/shark.html>).
|
||||
|
||||
config ARCH_LH7A40X
|
||||
bool "Sharp LH7A40X"
|
||||
|
@ -176,6 +205,8 @@ config ARCH_LH7A40X
|
|||
|
||||
config ARCH_OMAP
|
||||
bool "TI OMAP"
|
||||
help
|
||||
Support for TI's OMAP platform (OMAP1 and OMAP2).
|
||||
|
||||
config ARCH_VERSATILE
|
||||
bool "Versatile"
|
||||
|
@ -194,6 +225,8 @@ config ARCH_REALVIEW
|
|||
|
||||
config ARCH_IMX
|
||||
bool "IMX"
|
||||
help
|
||||
Support for Motorola's i.MX family of processors (MX1, MXL).
|
||||
|
||||
config ARCH_H720X
|
||||
bool "Hynix-HMS720x-based"
|
||||
|
@ -210,8 +243,8 @@ config ARCH_AAEC2000
|
|||
config ARCH_AT91RM9200
|
||||
bool "AT91RM9200"
|
||||
help
|
||||
Say Y here if you intend to run this kernel on an AT91RM9200-based
|
||||
board.
|
||||
Say Y here if you intend to run this kernel on an Atmel
|
||||
AT91RM9200-based board.
|
||||
|
||||
endchoice
|
||||
|
||||
|
@ -417,8 +450,8 @@ config AEABI
|
|||
To use this you need GCC version 4.0.0 or later.
|
||||
|
||||
config OABI_COMPAT
|
||||
bool "Allow old ABI binaries to run with this kernel"
|
||||
depends on AEABI
|
||||
bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
|
||||
depends on AEABI && EXPERIMENTAL
|
||||
default y
|
||||
help
|
||||
This option preserves the old syscall interface along with the
|
||||
|
|
|
@ -128,19 +128,27 @@ EXPORT_SYMBOL(rtc_tm_to_time);
|
|||
/*
|
||||
* Calculate the next alarm time given the requested alarm time mask
|
||||
* and the current time.
|
||||
*
|
||||
* FIXME: for now, we just copy the alarm time because we're lazy (and
|
||||
* is therefore buggy - setting a 10am alarm at 8pm will not result in
|
||||
* the alarm triggering.)
|
||||
*/
|
||||
void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now, struct rtc_time *alrm)
|
||||
{
|
||||
unsigned long next_time;
|
||||
unsigned long now_time;
|
||||
|
||||
next->tm_year = now->tm_year;
|
||||
next->tm_mon = now->tm_mon;
|
||||
next->tm_mday = now->tm_mday;
|
||||
next->tm_hour = alrm->tm_hour;
|
||||
next->tm_min = alrm->tm_min;
|
||||
next->tm_sec = alrm->tm_sec;
|
||||
|
||||
rtc_tm_to_time(now, &now_time);
|
||||
rtc_tm_to_time(next, &next_time);
|
||||
|
||||
if (next_time < now_time) {
|
||||
/* Advance one day */
|
||||
next_time += 60 * 60 * 24;
|
||||
rtc_time_to_tm(next_time, next);
|
||||
}
|
||||
}
|
||||
|
||||
static inline int rtc_read_time(struct rtc_ops *ops, struct rtc_time *tm)
|
||||
|
|
|
@ -85,7 +85,6 @@ CONFIG_DEFAULT_IOSCHED="anticipatory"
|
|||
# CONFIG_ARCH_CLPS711X is not set
|
||||
# CONFIG_ARCH_CO285 is not set
|
||||
# CONFIG_ARCH_EBSA110 is not set
|
||||
# CONFIG_ARCH_CAMELOT is not set
|
||||
# CONFIG_ARCH_FOOTBRIDGE is not set
|
||||
# CONFIG_ARCH_INTEGRATOR is not set
|
||||
# CONFIG_ARCH_IOP3XX is not set
|
||||
|
|
|
@ -85,7 +85,6 @@ CONFIG_DEFAULT_IOSCHED="anticipatory"
|
|||
# CONFIG_ARCH_CLPS711X is not set
|
||||
# CONFIG_ARCH_CO285 is not set
|
||||
# CONFIG_ARCH_EBSA110 is not set
|
||||
# CONFIG_ARCH_CAMELOT is not set
|
||||
# CONFIG_ARCH_FOOTBRIDGE is not set
|
||||
# CONFIG_ARCH_INTEGRATOR is not set
|
||||
# CONFIG_ARCH_IOP3XX is not set
|
||||
|
|
|
@ -14,8 +14,7 @@ CONFIG_GENERIC_IOMAP=y
|
|||
# Code maturity level options
|
||||
#
|
||||
CONFIG_EXPERIMENTAL=y
|
||||
# CONFIG_CLEAN_COMPILE is not set
|
||||
CONFIG_BROKEN=y
|
||||
CONFIG_CLEAN_COMPILE=y
|
||||
CONFIG_BROKEN_ON_SMP=y
|
||||
|
||||
#
|
||||
|
@ -360,7 +359,6 @@ CONFIG_BLK_DEV_IDE_BAST=y
|
|||
#
|
||||
# IEEE 1394 (FireWire) support
|
||||
#
|
||||
# CONFIG_IEEE1394 is not set
|
||||
|
||||
#
|
||||
# I2O device support
|
||||
|
@ -781,7 +779,6 @@ CONFIG_SYSFS=y
|
|||
# CONFIG_DEVFS_FS is not set
|
||||
# CONFIG_DEVPTS_FS_XATTR is not set
|
||||
# CONFIG_TMPFS is not set
|
||||
# CONFIG_HUGETLBFS is not set
|
||||
# CONFIG_HUGETLB_PAGE is not set
|
||||
CONFIG_RAMFS=y
|
||||
|
||||
|
|
|
@ -13,8 +13,7 @@ CONFIG_GENERIC_CALIBRATE_DELAY=y
|
|||
# Code maturity level options
|
||||
#
|
||||
CONFIG_EXPERIMENTAL=y
|
||||
# CONFIG_CLEAN_COMPILE is not set
|
||||
CONFIG_BROKEN=y
|
||||
CONFIG_CLEAN_COMPILE=y
|
||||
CONFIG_BROKEN_ON_SMP=y
|
||||
CONFIG_LOCK_KERNEL=y
|
||||
CONFIG_INIT_ENV_ARG_LIMIT=32
|
||||
|
@ -308,9 +307,7 @@ CONFIG_MTD_CFI_I2=y
|
|||
# CONFIG_MTD_ROM is not set
|
||||
# CONFIG_MTD_ABSENT is not set
|
||||
CONFIG_MTD_OBSOLETE_CHIPS=y
|
||||
# CONFIG_MTD_AMDSTD is not set
|
||||
CONFIG_MTD_SHARP=y
|
||||
# CONFIG_MTD_JEDEC is not set
|
||||
|
||||
#
|
||||
# Mapping drivers for chip access
|
||||
|
@ -396,7 +393,6 @@ CONFIG_ATA_OVER_ETH=m
|
|||
#
|
||||
# IEEE 1394 (FireWire) support
|
||||
#
|
||||
# CONFIG_IEEE1394 is not set
|
||||
|
||||
#
|
||||
# I2O device support
|
||||
|
@ -741,7 +737,6 @@ CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
|
|||
CONFIG_PROC_FS=y
|
||||
CONFIG_SYSFS=y
|
||||
CONFIG_TMPFS=y
|
||||
# CONFIG_HUGETLBFS is not set
|
||||
# CONFIG_HUGETLB_PAGE is not set
|
||||
CONFIG_RAMFS=y
|
||||
# CONFIG_RELAYFS_FS is not set
|
||||
|
|
|
@ -85,7 +85,6 @@ CONFIG_DEFAULT_IOSCHED="anticipatory"
|
|||
# CONFIG_ARCH_CLPS711X is not set
|
||||
# CONFIG_ARCH_CO285 is not set
|
||||
# CONFIG_ARCH_EBSA110 is not set
|
||||
# CONFIG_ARCH_CAMELOT is not set
|
||||
# CONFIG_ARCH_FOOTBRIDGE is not set
|
||||
# CONFIG_ARCH_INTEGRATOR is not set
|
||||
# CONFIG_ARCH_IOP3XX is not set
|
||||
|
|
|
@ -85,7 +85,6 @@ CONFIG_DEFAULT_IOSCHED="anticipatory"
|
|||
# CONFIG_ARCH_CLPS711X is not set
|
||||
# CONFIG_ARCH_CO285 is not set
|
||||
# CONFIG_ARCH_EBSA110 is not set
|
||||
# CONFIG_ARCH_CAMELOT is not set
|
||||
# CONFIG_ARCH_FOOTBRIDGE is not set
|
||||
# CONFIG_ARCH_INTEGRATOR is not set
|
||||
# CONFIG_ARCH_IOP3XX is not set
|
||||
|
|
|
@ -171,7 +171,7 @@ CONFIG_ALIGNMENT_TRAP=y
|
|||
#
|
||||
CONFIG_ZBOOT_ROM_TEXT=0x0
|
||||
CONFIG_ZBOOT_ROM_BSS=0x0
|
||||
CONFIG_CMDLINE="console=ttyS0,57600 root=/dev/nfs ip=bootp mem=64M@0x0 pci=firmware"
|
||||
CONFIG_CMDLINE="console=ttyS0,57600 root=/dev/nfs ip=bootp mem=64M@0x0"
|
||||
# CONFIG_XIP_KERNEL is not set
|
||||
|
||||
#
|
||||
|
|
|
@ -172,7 +172,7 @@ CONFIG_ALIGNMENT_TRAP=y
|
|||
#
|
||||
CONFIG_ZBOOT_ROM_TEXT=0x0
|
||||
CONFIG_ZBOOT_ROM_BSS=0x0
|
||||
CONFIG_CMDLINE="console=ttyS0,57600 root=/dev/nfs ip=bootp mem=64M@0x0 pci=firmware"
|
||||
CONFIG_CMDLINE="console=ttyS0,57600 root=/dev/nfs ip=bootp mem=64M@0x0"
|
||||
# CONFIG_XIP_KERNEL is not set
|
||||
|
||||
#
|
||||
|
|
|
@ -172,7 +172,7 @@ CONFIG_ALIGNMENT_TRAP=y
|
|||
#
|
||||
CONFIG_ZBOOT_ROM_TEXT=0x0
|
||||
CONFIG_ZBOOT_ROM_BSS=0x0
|
||||
CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp mem=64M@0x0 pci=firmware"
|
||||
CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp mem=64M@0x0"
|
||||
# CONFIG_XIP_KERNEL is not set
|
||||
|
||||
#
|
||||
|
|
|
@ -172,7 +172,7 @@ CONFIG_ALIGNMENT_TRAP=y
|
|||
#
|
||||
CONFIG_ZBOOT_ROM_TEXT=0x0
|
||||
CONFIG_ZBOOT_ROM_BSS=0x0
|
||||
CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp mem=64M@0x0 pci=firmware ixdp2x01_clock=50000000"
|
||||
CONFIG_CMDLINE="console=ttyS0,115200 root=/dev/nfs ip=bootp mem=64M@0x0"
|
||||
# CONFIG_XIP_KERNEL is not set
|
||||
|
||||
#
|
||||
|
|
|
@ -1,11 +1,10 @@
|
|||
#
|
||||
# Automatically generated make config: don't edit
|
||||
# Linux kernel version: 2.6.15-rc1
|
||||
# Sun Nov 13 17:41:24 2005
|
||||
# Linux kernel version: 2.6.16-rc2
|
||||
# Mon Feb 6 11:17:23 2006
|
||||
#
|
||||
CONFIG_ARM=y
|
||||
CONFIG_MMU=y
|
||||
CONFIG_UID16=y
|
||||
CONFIG_RWSEM_GENERIC_SPINLOCK=y
|
||||
CONFIG_GENERIC_CALIBRATE_DELAY=y
|
||||
|
||||
|
@ -13,8 +12,7 @@ CONFIG_GENERIC_CALIBRATE_DELAY=y
|
|||
# Code maturity level options
|
||||
#
|
||||
CONFIG_EXPERIMENTAL=y
|
||||
# CONFIG_CLEAN_COMPILE is not set
|
||||
CONFIG_BROKEN=y
|
||||
CONFIG_CLEAN_COMPILE=y
|
||||
CONFIG_BROKEN_ON_SMP=y
|
||||
CONFIG_INIT_ENV_ARG_LIMIT=32
|
||||
|
||||
|
@ -29,27 +27,31 @@ CONFIG_SYSVIPC=y
|
|||
# CONFIG_BSD_PROCESS_ACCT is not set
|
||||
CONFIG_SYSCTL=y
|
||||
# CONFIG_AUDIT is not set
|
||||
# CONFIG_HOTPLUG is not set
|
||||
CONFIG_KOBJECT_UEVENT=y
|
||||
# CONFIG_IKCONFIG is not set
|
||||
CONFIG_INITRAMFS_SOURCE=""
|
||||
CONFIG_UID16=y
|
||||
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
|
||||
# CONFIG_EMBEDDED is not set
|
||||
CONFIG_KALLSYMS=y
|
||||
# CONFIG_KALLSYMS_ALL is not set
|
||||
# CONFIG_KALLSYMS_EXTRA_PASS is not set
|
||||
CONFIG_HOTPLUG=y
|
||||
CONFIG_PRINTK=y
|
||||
CONFIG_BUG=y
|
||||
CONFIG_ELF_CORE=y
|
||||
CONFIG_BASE_FULL=y
|
||||
CONFIG_FUTEX=y
|
||||
CONFIG_EPOLL=y
|
||||
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
|
||||
CONFIG_SHMEM=y
|
||||
CONFIG_CC_ALIGN_FUNCTIONS=0
|
||||
CONFIG_CC_ALIGN_LABELS=0
|
||||
CONFIG_CC_ALIGN_LOOPS=0
|
||||
CONFIG_CC_ALIGN_JUMPS=0
|
||||
CONFIG_SLAB=y
|
||||
# CONFIG_TINY_SHMEM is not set
|
||||
CONFIG_BASE_SMALL=0
|
||||
# CONFIG_SLOB is not set
|
||||
CONFIG_OBSOLETE_INTERMODULE=y
|
||||
|
||||
#
|
||||
# Loadable module support
|
||||
|
@ -103,6 +105,7 @@ CONFIG_ARCH_S3C2410=y
|
|||
# CONFIG_ARCH_IMX is not set
|
||||
# CONFIG_ARCH_H720X is not set
|
||||
# CONFIG_ARCH_AAEC2000 is not set
|
||||
# CONFIG_ARCH_AT91RM9200 is not set
|
||||
|
||||
#
|
||||
# S3C24XX Implementations
|
||||
|
@ -161,7 +164,6 @@ CONFIG_CPU_TLB_V4WBI=y
|
|||
# Bus support
|
||||
#
|
||||
CONFIG_ISA=y
|
||||
CONFIG_ISA_DMA_API=y
|
||||
|
||||
#
|
||||
# PCCARD (PCMCIA/CardBus) support
|
||||
|
@ -173,6 +175,7 @@ CONFIG_ISA_DMA_API=y
|
|||
#
|
||||
# CONFIG_PREEMPT is not set
|
||||
# CONFIG_NO_IDLE_HZ is not set
|
||||
# CONFIG_AEABI is not set
|
||||
# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set
|
||||
CONFIG_SELECT_MEMORY_MODEL=y
|
||||
CONFIG_FLATMEM_MANUAL=y
|
||||
|
@ -215,6 +218,8 @@ CONFIG_BINFMT_AOUT=y
|
|||
# Power management options
|
||||
#
|
||||
CONFIG_PM=y
|
||||
CONFIG_PM_LEGACY=y
|
||||
# CONFIG_PM_DEBUG is not set
|
||||
CONFIG_APM=y
|
||||
|
||||
#
|
||||
|
@ -260,6 +265,11 @@ CONFIG_TCP_CONG_BIC=y
|
|||
# SCTP Configuration (EXPERIMENTAL)
|
||||
#
|
||||
# CONFIG_IP_SCTP is not set
|
||||
|
||||
#
|
||||
# TIPC Configuration (EXPERIMENTAL)
|
||||
#
|
||||
# CONFIG_TIPC is not set
|
||||
# CONFIG_ATM is not set
|
||||
# CONFIG_BRIDGE is not set
|
||||
# CONFIG_VLAN_8021Q is not set
|
||||
|
@ -277,7 +287,6 @@ CONFIG_TCP_CONG_BIC=y
|
|||
# QoS and/or fair queueing
|
||||
#
|
||||
# CONFIG_NET_SCHED is not set
|
||||
# CONFIG_NET_CLS_ROUTE is not set
|
||||
|
||||
#
|
||||
# Network testing
|
||||
|
@ -300,6 +309,11 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
|
|||
# CONFIG_FW_LOADER is not set
|
||||
# CONFIG_DEBUG_DRIVER is not set
|
||||
|
||||
#
|
||||
# Connector - unified userspace <-> kernelspace linker
|
||||
#
|
||||
# CONFIG_CONNECTOR is not set
|
||||
|
||||
#
|
||||
# Memory Technology Devices (MTD)
|
||||
#
|
||||
|
@ -413,8 +427,6 @@ CONFIG_PARPORT_1284=y
|
|||
#
|
||||
# Block devices
|
||||
#
|
||||
# CONFIG_BLK_DEV_XD is not set
|
||||
# CONFIG_PARIDE is not set
|
||||
# CONFIG_BLK_DEV_COW_COMMON is not set
|
||||
CONFIG_BLK_DEV_LOOP=y
|
||||
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
|
||||
|
@ -473,7 +485,6 @@ CONFIG_BLK_DEV_IDE_BAST=y
|
|||
#
|
||||
# IEEE 1394 (FireWire) support
|
||||
#
|
||||
# CONFIG_IEEE1394 is not set
|
||||
|
||||
#
|
||||
# I2O device support
|
||||
|
@ -504,7 +515,6 @@ CONFIG_NETDEVICES=y
|
|||
CONFIG_NET_ETHERNET=y
|
||||
CONFIG_MII=y
|
||||
# CONFIG_NET_VENDOR_3COM is not set
|
||||
# CONFIG_LANCE is not set
|
||||
# CONFIG_NET_VENDOR_SMC is not set
|
||||
# CONFIG_SMC91X is not set
|
||||
CONFIG_DM9000=y
|
||||
|
@ -609,11 +619,11 @@ CONFIG_SERIAL_NONSTANDARD=y
|
|||
# CONFIG_ROCKETPORT is not set
|
||||
# CONFIG_CYCLADES is not set
|
||||
# CONFIG_DIGIEPCA is not set
|
||||
# CONFIG_ESPSERIAL is not set
|
||||
# CONFIG_MOXA_INTELLIO is not set
|
||||
# CONFIG_MOXA_SMARTIO is not set
|
||||
# CONFIG_ISI is not set
|
||||
# CONFIG_SYNCLINKMP is not set
|
||||
# CONFIG_SYNCLINK_GT is not set
|
||||
# CONFIG_N_HDLC is not set
|
||||
# CONFIG_RISCOM8 is not set
|
||||
# CONFIG_SPECIALIX is not set
|
||||
|
@ -627,6 +637,7 @@ CONFIG_SERIAL_NONSTANDARD=y
|
|||
CONFIG_SERIAL_8250=y
|
||||
CONFIG_SERIAL_8250_CONSOLE=y
|
||||
CONFIG_SERIAL_8250_NR_UARTS=8
|
||||
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
|
||||
CONFIG_SERIAL_8250_EXTENDED=y
|
||||
CONFIG_SERIAL_8250_MANY_PORTS=y
|
||||
CONFIG_SERIAL_8250_SHARE_IRQ=y
|
||||
|
@ -689,6 +700,7 @@ CONFIG_S3C2410_RTC=y
|
|||
#
|
||||
# TPM devices
|
||||
#
|
||||
# CONFIG_TCG_TPM is not set
|
||||
# CONFIG_TELCLOCK is not set
|
||||
|
||||
#
|
||||
|
@ -732,6 +744,12 @@ CONFIG_SENSORS_EEPROM=m
|
|||
# CONFIG_I2C_DEBUG_BUS is not set
|
||||
# CONFIG_I2C_DEBUG_CHIP is not set
|
||||
|
||||
#
|
||||
# SPI support
|
||||
#
|
||||
# CONFIG_SPI is not set
|
||||
# CONFIG_SPI_MASTER is not set
|
||||
|
||||
#
|
||||
# Hardware Monitoring support
|
||||
#
|
||||
|
@ -865,6 +883,7 @@ CONFIG_FS_MBCACHE=y
|
|||
# CONFIG_JFS_FS is not set
|
||||
# CONFIG_FS_POSIX_ACL is not set
|
||||
# CONFIG_XFS_FS is not set
|
||||
# CONFIG_OCFS2_FS is not set
|
||||
# CONFIG_MINIX_FS is not set
|
||||
CONFIG_ROMFS_FS=y
|
||||
CONFIG_INOTIFY=y
|
||||
|
@ -896,10 +915,10 @@ CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
|
|||
CONFIG_PROC_FS=y
|
||||
CONFIG_SYSFS=y
|
||||
# CONFIG_TMPFS is not set
|
||||
# CONFIG_HUGETLBFS is not set
|
||||
# CONFIG_HUGETLB_PAGE is not set
|
||||
CONFIG_RAMFS=y
|
||||
# CONFIG_RELAYFS_FS is not set
|
||||
# CONFIG_CONFIGFS_FS is not set
|
||||
|
||||
#
|
||||
# Miscellaneous filesystems
|
||||
|
@ -968,6 +987,7 @@ CONFIG_SOLARIS_X86_PARTITION=y
|
|||
# CONFIG_SGI_PARTITION is not set
|
||||
# CONFIG_ULTRIX_PARTITION is not set
|
||||
# CONFIG_SUN_PARTITION is not set
|
||||
# CONFIG_KARMA_PARTITION is not set
|
||||
# CONFIG_EFI_PARTITION is not set
|
||||
|
||||
#
|
||||
|
@ -1023,12 +1043,13 @@ CONFIG_NLS_DEFAULT="iso8859-1"
|
|||
# Kernel hacking
|
||||
#
|
||||
# CONFIG_PRINTK_TIME is not set
|
||||
CONFIG_DEBUG_KERNEL=y
|
||||
CONFIG_MAGIC_SYSRQ=y
|
||||
CONFIG_DEBUG_KERNEL=y
|
||||
CONFIG_LOG_BUF_SHIFT=16
|
||||
CONFIG_DETECT_SOFTLOCKUP=y
|
||||
# CONFIG_SCHEDSTATS is not set
|
||||
# CONFIG_DEBUG_SLAB is not set
|
||||
CONFIG_DEBUG_MUTEXES=y
|
||||
# CONFIG_DEBUG_SPINLOCK is not set
|
||||
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
|
||||
# CONFIG_DEBUG_KOBJECT is not set
|
||||
|
@ -1037,6 +1058,7 @@ CONFIG_DEBUG_INFO=y
|
|||
# CONFIG_DEBUG_FS is not set
|
||||
# CONFIG_DEBUG_VM is not set
|
||||
CONFIG_FRAME_POINTER=y
|
||||
CONFIG_FORCED_INLINING=y
|
||||
# CONFIG_RCU_TORTURE_TEST is not set
|
||||
CONFIG_DEBUG_USER=y
|
||||
# CONFIG_DEBUG_WAITQ is not set
|
||||
|
|
|
@ -7,337 +7,334 @@
|
|||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* This file is included twice in entry-common.S
|
||||
* This file is included thrice in entry-common.S
|
||||
*/
|
||||
#ifndef NR_syscalls
|
||||
#define NR_syscalls 328
|
||||
#else
|
||||
|
||||
100:
|
||||
/* 0 */ .long sys_restart_syscall
|
||||
.long sys_exit
|
||||
.long sys_fork_wrapper
|
||||
.long sys_read
|
||||
.long sys_write
|
||||
/* 5 */ .long sys_open
|
||||
.long sys_close
|
||||
.long sys_ni_syscall /* was sys_waitpid */
|
||||
.long sys_creat
|
||||
.long sys_link
|
||||
/* 10 */ .long sys_unlink
|
||||
.long sys_execve_wrapper
|
||||
.long sys_chdir
|
||||
.long OBSOLETE(sys_time) /* used by libc4 */
|
||||
.long sys_mknod
|
||||
/* 15 */ .long sys_chmod
|
||||
.long sys_lchown16
|
||||
.long sys_ni_syscall /* was sys_break */
|
||||
.long sys_ni_syscall /* was sys_stat */
|
||||
.long sys_lseek
|
||||
/* 20 */ .long sys_getpid
|
||||
.long sys_mount
|
||||
.long OBSOLETE(sys_oldumount) /* used by libc4 */
|
||||
.long sys_setuid16
|
||||
.long sys_getuid16
|
||||
/* 25 */ .long OBSOLETE(sys_stime)
|
||||
.long sys_ptrace
|
||||
.long OBSOLETE(sys_alarm) /* used by libc4 */
|
||||
.long sys_ni_syscall /* was sys_fstat */
|
||||
.long sys_pause
|
||||
/* 30 */ .long OBSOLETE(sys_utime) /* used by libc4 */
|
||||
.long sys_ni_syscall /* was sys_stty */
|
||||
.long sys_ni_syscall /* was sys_getty */
|
||||
.long sys_access
|
||||
.long sys_nice
|
||||
/* 35 */ .long sys_ni_syscall /* was sys_ftime */
|
||||
.long sys_sync
|
||||
.long sys_kill
|
||||
.long sys_rename
|
||||
.long sys_mkdir
|
||||
/* 40 */ .long sys_rmdir
|
||||
.long sys_dup
|
||||
.long sys_pipe
|
||||
.long sys_times
|
||||
.long sys_ni_syscall /* was sys_prof */
|
||||
/* 45 */ .long sys_brk
|
||||
.long sys_setgid16
|
||||
.long sys_getgid16
|
||||
.long sys_ni_syscall /* was sys_signal */
|
||||
.long sys_geteuid16
|
||||
/* 50 */ .long sys_getegid16
|
||||
.long sys_acct
|
||||
.long sys_umount
|
||||
.long sys_ni_syscall /* was sys_lock */
|
||||
.long sys_ioctl
|
||||
/* 55 */ .long sys_fcntl
|
||||
.long sys_ni_syscall /* was sys_mpx */
|
||||
.long sys_setpgid
|
||||
.long sys_ni_syscall /* was sys_ulimit */
|
||||
.long sys_ni_syscall /* was sys_olduname */
|
||||
/* 60 */ .long sys_umask
|
||||
.long sys_chroot
|
||||
.long sys_ustat
|
||||
.long sys_dup2
|
||||
.long sys_getppid
|
||||
/* 65 */ .long sys_getpgrp
|
||||
.long sys_setsid
|
||||
.long sys_sigaction
|
||||
.long sys_ni_syscall /* was sys_sgetmask */
|
||||
.long sys_ni_syscall /* was sys_ssetmask */
|
||||
/* 70 */ .long sys_setreuid16
|
||||
.long sys_setregid16
|
||||
.long sys_sigsuspend_wrapper
|
||||
.long sys_sigpending
|
||||
.long sys_sethostname
|
||||
/* 75 */ .long sys_setrlimit
|
||||
.long OBSOLETE(sys_old_getrlimit) /* used by libc4 */
|
||||
.long sys_getrusage
|
||||
.long sys_gettimeofday
|
||||
.long sys_settimeofday
|
||||
/* 80 */ .long sys_getgroups16
|
||||
.long sys_setgroups16
|
||||
.long OBSOLETE(old_select) /* used by libc4 */
|
||||
.long sys_symlink
|
||||
.long sys_ni_syscall /* was sys_lstat */
|
||||
/* 85 */ .long sys_readlink
|
||||
.long sys_uselib
|
||||
.long sys_swapon
|
||||
.long sys_reboot
|
||||
.long OBSOLETE(old_readdir) /* used by libc4 */
|
||||
/* 90 */ .long OBSOLETE(old_mmap) /* used by libc4 */
|
||||
.long sys_munmap
|
||||
.long sys_truncate
|
||||
.long sys_ftruncate
|
||||
.long sys_fchmod
|
||||
/* 95 */ .long sys_fchown16
|
||||
.long sys_getpriority
|
||||
.long sys_setpriority
|
||||
.long sys_ni_syscall /* was sys_profil */
|
||||
.long sys_statfs
|
||||
/* 100 */ .long sys_fstatfs
|
||||
.long sys_ni_syscall
|
||||
.long OBSOLETE(sys_socketcall)
|
||||
.long sys_syslog
|
||||
.long sys_setitimer
|
||||
/* 105 */ .long sys_getitimer
|
||||
.long sys_newstat
|
||||
.long sys_newlstat
|
||||
.long sys_newfstat
|
||||
.long sys_ni_syscall /* was sys_uname */
|
||||
/* 110 */ .long sys_ni_syscall /* was sys_iopl */
|
||||
.long sys_vhangup
|
||||
.long sys_ni_syscall
|
||||
.long OBSOLETE(sys_syscall) /* call a syscall */
|
||||
.long sys_wait4
|
||||
/* 115 */ .long sys_swapoff
|
||||
.long sys_sysinfo
|
||||
.long OBSOLETE(ABI(sys_ipc, sys_oabi_ipc))
|
||||
.long sys_fsync
|
||||
.long sys_sigreturn_wrapper
|
||||
/* 120 */ .long sys_clone_wrapper
|
||||
.long sys_setdomainname
|
||||
.long sys_newuname
|
||||
.long sys_ni_syscall
|
||||
.long sys_adjtimex
|
||||
/* 125 */ .long sys_mprotect
|
||||
.long sys_sigprocmask
|
||||
.long sys_ni_syscall /* was sys_create_module */
|
||||
.long sys_init_module
|
||||
.long sys_delete_module
|
||||
/* 130 */ .long sys_ni_syscall /* was sys_get_kernel_syms */
|
||||
.long sys_quotactl
|
||||
.long sys_getpgid
|
||||
.long sys_fchdir
|
||||
.long sys_bdflush
|
||||
/* 135 */ .long sys_sysfs
|
||||
.long sys_personality
|
||||
.long sys_ni_syscall /* .long _sys_afs_syscall */
|
||||
.long sys_setfsuid16
|
||||
.long sys_setfsgid16
|
||||
/* 140 */ .long sys_llseek
|
||||
.long sys_getdents
|
||||
.long sys_select
|
||||
.long sys_flock
|
||||
.long sys_msync
|
||||
/* 145 */ .long sys_readv
|
||||
.long sys_writev
|
||||
.long sys_getsid
|
||||
.long sys_fdatasync
|
||||
.long sys_sysctl
|
||||
/* 150 */ .long sys_mlock
|
||||
.long sys_munlock
|
||||
.long sys_mlockall
|
||||
.long sys_munlockall
|
||||
.long sys_sched_setparam
|
||||
/* 155 */ .long sys_sched_getparam
|
||||
.long sys_sched_setscheduler
|
||||
.long sys_sched_getscheduler
|
||||
.long sys_sched_yield
|
||||
.long sys_sched_get_priority_max
|
||||
/* 160 */ .long sys_sched_get_priority_min
|
||||
.long sys_sched_rr_get_interval
|
||||
.long sys_nanosleep
|
||||
.long sys_arm_mremap
|
||||
.long sys_setresuid16
|
||||
/* 165 */ .long sys_getresuid16
|
||||
.long sys_ni_syscall
|
||||
.long sys_ni_syscall /* was sys_query_module */
|
||||
.long sys_poll
|
||||
.long sys_nfsservctl
|
||||
/* 170 */ .long sys_setresgid16
|
||||
.long sys_getresgid16
|
||||
.long sys_prctl
|
||||
.long sys_rt_sigreturn_wrapper
|
||||
.long sys_rt_sigaction
|
||||
/* 175 */ .long sys_rt_sigprocmask
|
||||
.long sys_rt_sigpending
|
||||
.long sys_rt_sigtimedwait
|
||||
.long sys_rt_sigqueueinfo
|
||||
.long sys_rt_sigsuspend_wrapper
|
||||
/* 180 */ .long ABI(sys_pread64, sys_oabi_pread64)
|
||||
.long ABI(sys_pwrite64, sys_oabi_pwrite64)
|
||||
.long sys_chown16
|
||||
.long sys_getcwd
|
||||
.long sys_capget
|
||||
/* 185 */ .long sys_capset
|
||||
.long sys_sigaltstack_wrapper
|
||||
.long sys_sendfile
|
||||
.long sys_ni_syscall
|
||||
.long sys_ni_syscall
|
||||
/* 190 */ .long sys_vfork_wrapper
|
||||
.long sys_getrlimit
|
||||
.long sys_mmap2
|
||||
.long ABI(sys_truncate64, sys_oabi_truncate64)
|
||||
.long ABI(sys_ftruncate64, sys_oabi_ftruncate64)
|
||||
/* 195 */ .long ABI(sys_stat64, sys_oabi_stat64)
|
||||
.long ABI(sys_lstat64, sys_oabi_lstat64)
|
||||
.long ABI(sys_fstat64, sys_oabi_fstat64)
|
||||
.long sys_lchown
|
||||
.long sys_getuid
|
||||
/* 200 */ .long sys_getgid
|
||||
.long sys_geteuid
|
||||
.long sys_getegid
|
||||
.long sys_setreuid
|
||||
.long sys_setregid
|
||||
/* 205 */ .long sys_getgroups
|
||||
.long sys_setgroups
|
||||
.long sys_fchown
|
||||
.long sys_setresuid
|
||||
.long sys_getresuid
|
||||
/* 210 */ .long sys_setresgid
|
||||
.long sys_getresgid
|
||||
.long sys_chown
|
||||
.long sys_setuid
|
||||
.long sys_setgid
|
||||
/* 215 */ .long sys_setfsuid
|
||||
.long sys_setfsgid
|
||||
.long sys_getdents64
|
||||
.long sys_pivot_root
|
||||
.long sys_mincore
|
||||
/* 220 */ .long sys_madvise
|
||||
.long ABI(sys_fcntl64, sys_oabi_fcntl64)
|
||||
.long sys_ni_syscall /* TUX */
|
||||
.long sys_ni_syscall
|
||||
.long sys_gettid
|
||||
/* 225 */ .long ABI(sys_readahead, sys_oabi_readahead)
|
||||
.long sys_setxattr
|
||||
.long sys_lsetxattr
|
||||
.long sys_fsetxattr
|
||||
.long sys_getxattr
|
||||
/* 230 */ .long sys_lgetxattr
|
||||
.long sys_fgetxattr
|
||||
.long sys_listxattr
|
||||
.long sys_llistxattr
|
||||
.long sys_flistxattr
|
||||
/* 235 */ .long sys_removexattr
|
||||
.long sys_lremovexattr
|
||||
.long sys_fremovexattr
|
||||
.long sys_tkill
|
||||
.long sys_sendfile64
|
||||
/* 240 */ .long sys_futex
|
||||
.long sys_sched_setaffinity
|
||||
.long sys_sched_getaffinity
|
||||
.long sys_io_setup
|
||||
.long sys_io_destroy
|
||||
/* 245 */ .long sys_io_getevents
|
||||
.long sys_io_submit
|
||||
.long sys_io_cancel
|
||||
.long sys_exit_group
|
||||
.long sys_lookup_dcookie
|
||||
/* 250 */ .long sys_epoll_create
|
||||
.long ABI(sys_epoll_ctl, sys_oabi_epoll_ctl)
|
||||
.long ABI(sys_epoll_wait, sys_oabi_epoll_wait)
|
||||
.long sys_remap_file_pages
|
||||
.long sys_ni_syscall /* sys_set_thread_area */
|
||||
/* 255 */ .long sys_ni_syscall /* sys_get_thread_area */
|
||||
.long sys_set_tid_address
|
||||
.long sys_timer_create
|
||||
.long sys_timer_settime
|
||||
.long sys_timer_gettime
|
||||
/* 260 */ .long sys_timer_getoverrun
|
||||
.long sys_timer_delete
|
||||
.long sys_clock_settime
|
||||
.long sys_clock_gettime
|
||||
.long sys_clock_getres
|
||||
/* 265 */ .long sys_clock_nanosleep
|
||||
.long sys_statfs64_wrapper
|
||||
.long sys_fstatfs64_wrapper
|
||||
.long sys_tgkill
|
||||
.long sys_utimes
|
||||
/* 270 */ .long sys_arm_fadvise64_64
|
||||
.long sys_pciconfig_iobase
|
||||
.long sys_pciconfig_read
|
||||
.long sys_pciconfig_write
|
||||
.long sys_mq_open
|
||||
/* 275 */ .long sys_mq_unlink
|
||||
.long sys_mq_timedsend
|
||||
.long sys_mq_timedreceive
|
||||
.long sys_mq_notify
|
||||
.long sys_mq_getsetattr
|
||||
/* 280 */ .long sys_waitid
|
||||
.long sys_socket
|
||||
.long sys_bind
|
||||
.long sys_connect
|
||||
.long sys_listen
|
||||
/* 285 */ .long sys_accept
|
||||
.long sys_getsockname
|
||||
.long sys_getpeername
|
||||
.long sys_socketpair
|
||||
.long sys_send
|
||||
/* 290 */ .long sys_sendto
|
||||
.long sys_recv
|
||||
.long sys_recvfrom
|
||||
.long sys_shutdown
|
||||
.long sys_setsockopt
|
||||
/* 295 */ .long sys_getsockopt
|
||||
.long sys_sendmsg
|
||||
.long sys_recvmsg
|
||||
.long ABI(sys_semop, sys_oabi_semop)
|
||||
.long sys_semget
|
||||
/* 300 */ .long sys_semctl
|
||||
.long sys_msgsnd
|
||||
.long sys_msgrcv
|
||||
.long sys_msgget
|
||||
.long sys_msgctl
|
||||
/* 305 */ .long sys_shmat
|
||||
.long sys_shmdt
|
||||
.long sys_shmget
|
||||
.long sys_shmctl
|
||||
.long sys_add_key
|
||||
/* 310 */ .long sys_request_key
|
||||
.long sys_keyctl
|
||||
.long ABI(sys_semtimedop, sys_oabi_semtimedop)
|
||||
/* vserver */ .long sys_ni_syscall
|
||||
.long sys_ioprio_set
|
||||
/* 315 */ .long sys_ioprio_get
|
||||
.long sys_inotify_init
|
||||
.long sys_inotify_add_watch
|
||||
.long sys_inotify_rm_watch
|
||||
.long sys_mbind
|
||||
/* 320 */ .long sys_get_mempolicy
|
||||
.long sys_set_mempolicy
|
||||
|
||||
.rept NR_syscalls - (. - 100b) / 4
|
||||
.long sys_ni_syscall
|
||||
.endr
|
||||
/* 0 */ CALL(sys_restart_syscall)
|
||||
CALL(sys_exit)
|
||||
CALL(sys_fork_wrapper)
|
||||
CALL(sys_read)
|
||||
CALL(sys_write)
|
||||
/* 5 */ CALL(sys_open)
|
||||
CALL(sys_close)
|
||||
CALL(sys_ni_syscall) /* was sys_waitpid */
|
||||
CALL(sys_creat)
|
||||
CALL(sys_link)
|
||||
/* 10 */ CALL(sys_unlink)
|
||||
CALL(sys_execve_wrapper)
|
||||
CALL(sys_chdir)
|
||||
CALL(OBSOLETE(sys_time)) /* used by libc4 */
|
||||
CALL(sys_mknod)
|
||||
/* 15 */ CALL(sys_chmod)
|
||||
CALL(sys_lchown16)
|
||||
CALL(sys_ni_syscall) /* was sys_break */
|
||||
CALL(sys_ni_syscall) /* was sys_stat */
|
||||
CALL(sys_lseek)
|
||||
/* 20 */ CALL(sys_getpid)
|
||||
CALL(sys_mount)
|
||||
CALL(OBSOLETE(sys_oldumount)) /* used by libc4 */
|
||||
CALL(sys_setuid16)
|
||||
CALL(sys_getuid16)
|
||||
/* 25 */ CALL(OBSOLETE(sys_stime))
|
||||
CALL(sys_ptrace)
|
||||
CALL(OBSOLETE(sys_alarm)) /* used by libc4 */
|
||||
CALL(sys_ni_syscall) /* was sys_fstat */
|
||||
CALL(sys_pause)
|
||||
/* 30 */ CALL(OBSOLETE(sys_utime)) /* used by libc4 */
|
||||
CALL(sys_ni_syscall) /* was sys_stty */
|
||||
CALL(sys_ni_syscall) /* was sys_getty */
|
||||
CALL(sys_access)
|
||||
CALL(sys_nice)
|
||||
/* 35 */ CALL(sys_ni_syscall) /* was sys_ftime */
|
||||
CALL(sys_sync)
|
||||
CALL(sys_kill)
|
||||
CALL(sys_rename)
|
||||
CALL(sys_mkdir)
|
||||
/* 40 */ CALL(sys_rmdir)
|
||||
CALL(sys_dup)
|
||||
CALL(sys_pipe)
|
||||
CALL(sys_times)
|
||||
CALL(sys_ni_syscall) /* was sys_prof */
|
||||
/* 45 */ CALL(sys_brk)
|
||||
CALL(sys_setgid16)
|
||||
CALL(sys_getgid16)
|
||||
CALL(sys_ni_syscall) /* was sys_signal */
|
||||
CALL(sys_geteuid16)
|
||||
/* 50 */ CALL(sys_getegid16)
|
||||
CALL(sys_acct)
|
||||
CALL(sys_umount)
|
||||
CALL(sys_ni_syscall) /* was sys_lock */
|
||||
CALL(sys_ioctl)
|
||||
/* 55 */ CALL(sys_fcntl)
|
||||
CALL(sys_ni_syscall) /* was sys_mpx */
|
||||
CALL(sys_setpgid)
|
||||
CALL(sys_ni_syscall) /* was sys_ulimit */
|
||||
CALL(sys_ni_syscall) /* was sys_olduname */
|
||||
/* 60 */ CALL(sys_umask)
|
||||
CALL(sys_chroot)
|
||||
CALL(sys_ustat)
|
||||
CALL(sys_dup2)
|
||||
CALL(sys_getppid)
|
||||
/* 65 */ CALL(sys_getpgrp)
|
||||
CALL(sys_setsid)
|
||||
CALL(sys_sigaction)
|
||||
CALL(sys_ni_syscall) /* was sys_sgetmask */
|
||||
CALL(sys_ni_syscall) /* was sys_ssetmask */
|
||||
/* 70 */ CALL(sys_setreuid16)
|
||||
CALL(sys_setregid16)
|
||||
CALL(sys_sigsuspend_wrapper)
|
||||
CALL(sys_sigpending)
|
||||
CALL(sys_sethostname)
|
||||
/* 75 */ CALL(sys_setrlimit)
|
||||
CALL(OBSOLETE(sys_old_getrlimit)) /* used by libc4 */
|
||||
CALL(sys_getrusage)
|
||||
CALL(sys_gettimeofday)
|
||||
CALL(sys_settimeofday)
|
||||
/* 80 */ CALL(sys_getgroups16)
|
||||
CALL(sys_setgroups16)
|
||||
CALL(OBSOLETE(old_select)) /* used by libc4 */
|
||||
CALL(sys_symlink)
|
||||
CALL(sys_ni_syscall) /* was sys_lstat */
|
||||
/* 85 */ CALL(sys_readlink)
|
||||
CALL(sys_uselib)
|
||||
CALL(sys_swapon)
|
||||
CALL(sys_reboot)
|
||||
CALL(OBSOLETE(old_readdir)) /* used by libc4 */
|
||||
/* 90 */ CALL(OBSOLETE(old_mmap)) /* used by libc4 */
|
||||
CALL(sys_munmap)
|
||||
CALL(sys_truncate)
|
||||
CALL(sys_ftruncate)
|
||||
CALL(sys_fchmod)
|
||||
/* 95 */ CALL(sys_fchown16)
|
||||
CALL(sys_getpriority)
|
||||
CALL(sys_setpriority)
|
||||
CALL(sys_ni_syscall) /* was sys_profil */
|
||||
CALL(sys_statfs)
|
||||
/* 100 */ CALL(sys_fstatfs)
|
||||
CALL(sys_ni_syscall)
|
||||
CALL(OBSOLETE(ABI(sys_socketcall, sys_oabi_socketcall)))
|
||||
CALL(sys_syslog)
|
||||
CALL(sys_setitimer)
|
||||
/* 105 */ CALL(sys_getitimer)
|
||||
CALL(sys_newstat)
|
||||
CALL(sys_newlstat)
|
||||
CALL(sys_newfstat)
|
||||
CALL(sys_ni_syscall) /* was sys_uname */
|
||||
/* 110 */ CALL(sys_ni_syscall) /* was sys_iopl */
|
||||
CALL(sys_vhangup)
|
||||
CALL(sys_ni_syscall)
|
||||
CALL(OBSOLETE(sys_syscall)) /* call a syscall */
|
||||
CALL(sys_wait4)
|
||||
/* 115 */ CALL(sys_swapoff)
|
||||
CALL(sys_sysinfo)
|
||||
CALL(OBSOLETE(ABI(sys_ipc, sys_oabi_ipc)))
|
||||
CALL(sys_fsync)
|
||||
CALL(sys_sigreturn_wrapper)
|
||||
/* 120 */ CALL(sys_clone_wrapper)
|
||||
CALL(sys_setdomainname)
|
||||
CALL(sys_newuname)
|
||||
CALL(sys_ni_syscall)
|
||||
CALL(sys_adjtimex)
|
||||
/* 125 */ CALL(sys_mprotect)
|
||||
CALL(sys_sigprocmask)
|
||||
CALL(sys_ni_syscall) /* was sys_create_module */
|
||||
CALL(sys_init_module)
|
||||
CALL(sys_delete_module)
|
||||
/* 130 */ CALL(sys_ni_syscall) /* was sys_get_kernel_syms */
|
||||
CALL(sys_quotactl)
|
||||
CALL(sys_getpgid)
|
||||
CALL(sys_fchdir)
|
||||
CALL(sys_bdflush)
|
||||
/* 135 */ CALL(sys_sysfs)
|
||||
CALL(sys_personality)
|
||||
CALL(sys_ni_syscall) /* CALL(_sys_afs_syscall) */
|
||||
CALL(sys_setfsuid16)
|
||||
CALL(sys_setfsgid16)
|
||||
/* 140 */ CALL(sys_llseek)
|
||||
CALL(sys_getdents)
|
||||
CALL(sys_select)
|
||||
CALL(sys_flock)
|
||||
CALL(sys_msync)
|
||||
/* 145 */ CALL(sys_readv)
|
||||
CALL(sys_writev)
|
||||
CALL(sys_getsid)
|
||||
CALL(sys_fdatasync)
|
||||
CALL(sys_sysctl)
|
||||
/* 150 */ CALL(sys_mlock)
|
||||
CALL(sys_munlock)
|
||||
CALL(sys_mlockall)
|
||||
CALL(sys_munlockall)
|
||||
CALL(sys_sched_setparam)
|
||||
/* 155 */ CALL(sys_sched_getparam)
|
||||
CALL(sys_sched_setscheduler)
|
||||
CALL(sys_sched_getscheduler)
|
||||
CALL(sys_sched_yield)
|
||||
CALL(sys_sched_get_priority_max)
|
||||
/* 160 */ CALL(sys_sched_get_priority_min)
|
||||
CALL(sys_sched_rr_get_interval)
|
||||
CALL(sys_nanosleep)
|
||||
CALL(sys_arm_mremap)
|
||||
CALL(sys_setresuid16)
|
||||
/* 165 */ CALL(sys_getresuid16)
|
||||
CALL(sys_ni_syscall)
|
||||
CALL(sys_ni_syscall) /* was sys_query_module */
|
||||
CALL(sys_poll)
|
||||
CALL(sys_nfsservctl)
|
||||
/* 170 */ CALL(sys_setresgid16)
|
||||
CALL(sys_getresgid16)
|
||||
CALL(sys_prctl)
|
||||
CALL(sys_rt_sigreturn_wrapper)
|
||||
CALL(sys_rt_sigaction)
|
||||
/* 175 */ CALL(sys_rt_sigprocmask)
|
||||
CALL(sys_rt_sigpending)
|
||||
CALL(sys_rt_sigtimedwait)
|
||||
CALL(sys_rt_sigqueueinfo)
|
||||
CALL(sys_rt_sigsuspend_wrapper)
|
||||
/* 180 */ CALL(ABI(sys_pread64, sys_oabi_pread64))
|
||||
CALL(ABI(sys_pwrite64, sys_oabi_pwrite64))
|
||||
CALL(sys_chown16)
|
||||
CALL(sys_getcwd)
|
||||
CALL(sys_capget)
|
||||
/* 185 */ CALL(sys_capset)
|
||||
CALL(sys_sigaltstack_wrapper)
|
||||
CALL(sys_sendfile)
|
||||
CALL(sys_ni_syscall)
|
||||
CALL(sys_ni_syscall)
|
||||
/* 190 */ CALL(sys_vfork_wrapper)
|
||||
CALL(sys_getrlimit)
|
||||
CALL(sys_mmap2)
|
||||
CALL(ABI(sys_truncate64, sys_oabi_truncate64))
|
||||
CALL(ABI(sys_ftruncate64, sys_oabi_ftruncate64))
|
||||
/* 195 */ CALL(ABI(sys_stat64, sys_oabi_stat64))
|
||||
CALL(ABI(sys_lstat64, sys_oabi_lstat64))
|
||||
CALL(ABI(sys_fstat64, sys_oabi_fstat64))
|
||||
CALL(sys_lchown)
|
||||
CALL(sys_getuid)
|
||||
/* 200 */ CALL(sys_getgid)
|
||||
CALL(sys_geteuid)
|
||||
CALL(sys_getegid)
|
||||
CALL(sys_setreuid)
|
||||
CALL(sys_setregid)
|
||||
/* 205 */ CALL(sys_getgroups)
|
||||
CALL(sys_setgroups)
|
||||
CALL(sys_fchown)
|
||||
CALL(sys_setresuid)
|
||||
CALL(sys_getresuid)
|
||||
/* 210 */ CALL(sys_setresgid)
|
||||
CALL(sys_getresgid)
|
||||
CALL(sys_chown)
|
||||
CALL(sys_setuid)
|
||||
CALL(sys_setgid)
|
||||
/* 215 */ CALL(sys_setfsuid)
|
||||
CALL(sys_setfsgid)
|
||||
CALL(sys_getdents64)
|
||||
CALL(sys_pivot_root)
|
||||
CALL(sys_mincore)
|
||||
/* 220 */ CALL(sys_madvise)
|
||||
CALL(ABI(sys_fcntl64, sys_oabi_fcntl64))
|
||||
CALL(sys_ni_syscall) /* TUX */
|
||||
CALL(sys_ni_syscall)
|
||||
CALL(sys_gettid)
|
||||
/* 225 */ CALL(ABI(sys_readahead, sys_oabi_readahead))
|
||||
CALL(sys_setxattr)
|
||||
CALL(sys_lsetxattr)
|
||||
CALL(sys_fsetxattr)
|
||||
CALL(sys_getxattr)
|
||||
/* 230 */ CALL(sys_lgetxattr)
|
||||
CALL(sys_fgetxattr)
|
||||
CALL(sys_listxattr)
|
||||
CALL(sys_llistxattr)
|
||||
CALL(sys_flistxattr)
|
||||
/* 235 */ CALL(sys_removexattr)
|
||||
CALL(sys_lremovexattr)
|
||||
CALL(sys_fremovexattr)
|
||||
CALL(sys_tkill)
|
||||
CALL(sys_sendfile64)
|
||||
/* 240 */ CALL(sys_futex)
|
||||
CALL(sys_sched_setaffinity)
|
||||
CALL(sys_sched_getaffinity)
|
||||
CALL(sys_io_setup)
|
||||
CALL(sys_io_destroy)
|
||||
/* 245 */ CALL(sys_io_getevents)
|
||||
CALL(sys_io_submit)
|
||||
CALL(sys_io_cancel)
|
||||
CALL(sys_exit_group)
|
||||
CALL(sys_lookup_dcookie)
|
||||
/* 250 */ CALL(sys_epoll_create)
|
||||
CALL(ABI(sys_epoll_ctl, sys_oabi_epoll_ctl))
|
||||
CALL(ABI(sys_epoll_wait, sys_oabi_epoll_wait))
|
||||
CALL(sys_remap_file_pages)
|
||||
CALL(sys_ni_syscall) /* sys_set_thread_area */
|
||||
/* 255 */ CALL(sys_ni_syscall) /* sys_get_thread_area */
|
||||
CALL(sys_set_tid_address)
|
||||
CALL(sys_timer_create)
|
||||
CALL(sys_timer_settime)
|
||||
CALL(sys_timer_gettime)
|
||||
/* 260 */ CALL(sys_timer_getoverrun)
|
||||
CALL(sys_timer_delete)
|
||||
CALL(sys_clock_settime)
|
||||
CALL(sys_clock_gettime)
|
||||
CALL(sys_clock_getres)
|
||||
/* 265 */ CALL(sys_clock_nanosleep)
|
||||
CALL(sys_statfs64_wrapper)
|
||||
CALL(sys_fstatfs64_wrapper)
|
||||
CALL(sys_tgkill)
|
||||
CALL(sys_utimes)
|
||||
/* 270 */ CALL(sys_arm_fadvise64_64)
|
||||
CALL(sys_pciconfig_iobase)
|
||||
CALL(sys_pciconfig_read)
|
||||
CALL(sys_pciconfig_write)
|
||||
CALL(sys_mq_open)
|
||||
/* 275 */ CALL(sys_mq_unlink)
|
||||
CALL(sys_mq_timedsend)
|
||||
CALL(sys_mq_timedreceive)
|
||||
CALL(sys_mq_notify)
|
||||
CALL(sys_mq_getsetattr)
|
||||
/* 280 */ CALL(sys_waitid)
|
||||
CALL(sys_socket)
|
||||
CALL(ABI(sys_bind, sys_oabi_bind))
|
||||
CALL(ABI(sys_connect, sys_oabi_connect))
|
||||
CALL(sys_listen)
|
||||
/* 285 */ CALL(sys_accept)
|
||||
CALL(sys_getsockname)
|
||||
CALL(sys_getpeername)
|
||||
CALL(sys_socketpair)
|
||||
CALL(sys_send)
|
||||
/* 290 */ CALL(ABI(sys_sendto, sys_oabi_sendto))
|
||||
CALL(sys_recv)
|
||||
CALL(sys_recvfrom)
|
||||
CALL(sys_shutdown)
|
||||
CALL(sys_setsockopt)
|
||||
/* 295 */ CALL(sys_getsockopt)
|
||||
CALL(ABI(sys_sendmsg, sys_oabi_sendmsg))
|
||||
CALL(sys_recvmsg)
|
||||
CALL(ABI(sys_semop, sys_oabi_semop))
|
||||
CALL(sys_semget)
|
||||
/* 300 */ CALL(sys_semctl)
|
||||
CALL(sys_msgsnd)
|
||||
CALL(sys_msgrcv)
|
||||
CALL(sys_msgget)
|
||||
CALL(sys_msgctl)
|
||||
/* 305 */ CALL(sys_shmat)
|
||||
CALL(sys_shmdt)
|
||||
CALL(sys_shmget)
|
||||
CALL(sys_shmctl)
|
||||
CALL(sys_add_key)
|
||||
/* 310 */ CALL(sys_request_key)
|
||||
CALL(sys_keyctl)
|
||||
CALL(ABI(sys_semtimedop, sys_oabi_semtimedop))
|
||||
/* vserver */ CALL(sys_ni_syscall)
|
||||
CALL(sys_ioprio_set)
|
||||
/* 315 */ CALL(sys_ioprio_get)
|
||||
CALL(sys_inotify_init)
|
||||
CALL(sys_inotify_add_watch)
|
||||
CALL(sys_inotify_rm_watch)
|
||||
CALL(sys_mbind)
|
||||
/* 320 */ CALL(sys_get_mempolicy)
|
||||
CALL(sys_set_mempolicy)
|
||||
#ifndef syscalls_counted
|
||||
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
|
||||
#define syscalls_counted
|
||||
#endif
|
||||
.rept syscalls_padding
|
||||
CALL(sys_ni_syscall)
|
||||
.endr
|
||||
|
|
|
@ -333,9 +333,13 @@ __pabt_svc:
|
|||
@ from the exception stack
|
||||
|
||||
#if __LINUX_ARM_ARCH__ < 6 && !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG)
|
||||
#ifndef CONFIG_MMU
|
||||
#warning "NPTL on non MMU needs fixing"
|
||||
#else
|
||||
@ make sure our user space atomic helper is aborted
|
||||
cmp r2, #TASK_SIZE
|
||||
bichs r3, r3, #PSR_Z_BIT
|
||||
#endif
|
||||
#endif
|
||||
|
||||
@
|
||||
|
@ -562,7 +566,7 @@ ENTRY(__switch_to)
|
|||
ldr r6, [r2, #TI_CPU_DOMAIN]!
|
||||
#endif
|
||||
#if __LINUX_ARM_ARCH__ >= 6
|
||||
#ifdef CONFIG_CPU_MPCORE
|
||||
#ifdef CONFIG_CPU_32v6K
|
||||
clrex
|
||||
#else
|
||||
strex r5, r4, [ip] @ Clear exclusive monitor
|
||||
|
@ -705,7 +709,12 @@ __kuser_memory_barrier: @ 0xffff0fa0
|
|||
* The C flag is also set if *ptr was changed to allow for assembly
|
||||
* optimization in the calling code.
|
||||
*
|
||||
* Note: this routine already includes memory barriers as needed.
|
||||
* Notes:
|
||||
*
|
||||
* - This routine already includes memory barriers as needed.
|
||||
*
|
||||
* - A failure might be transient, i.e. it is possible, although unlikely,
|
||||
* that "failure" be returned even if *ptr == oldval.
|
||||
*
|
||||
* For example, a user space atomic_add implementation could look like this:
|
||||
*
|
||||
|
@ -756,12 +765,18 @@ __kuser_cmpxchg: @ 0xffff0fc0
|
|||
* exception happening just after the str instruction which would
|
||||
* clear the Z flag although the exchange was done.
|
||||
*/
|
||||
#ifdef CONFIG_MMU
|
||||
teq ip, ip @ set Z flag
|
||||
ldr ip, [r2] @ load current val
|
||||
add r3, r2, #1 @ prepare store ptr
|
||||
teqeq ip, r0 @ compare with oldval if still allowed
|
||||
streq r1, [r3, #-1]! @ store newval if still allowed
|
||||
subs r0, r2, r3 @ if r2 == r3 the str occured
|
||||
#else
|
||||
#warning "NPTL on non MMU needs fixing"
|
||||
mov r0, #-1
|
||||
adds r0, r0, #0
|
||||
#endif
|
||||
mov pc, lr
|
||||
|
||||
#else
|
||||
|
|
|
@ -87,7 +87,11 @@ ENTRY(ret_from_fork)
|
|||
b ret_slow_syscall
|
||||
|
||||
|
||||
.equ NR_syscalls,0
|
||||
#define CALL(x) .equ NR_syscalls,NR_syscalls+1
|
||||
#include "calls.S"
|
||||
#undef CALL
|
||||
#define CALL(x) .long x
|
||||
|
||||
/*=============================================================================
|
||||
* SWI handler
|
||||
|
|
|
@ -23,6 +23,7 @@
|
|||
#include <linux/root_dev.h>
|
||||
#include <linux/cpu.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/smp.h>
|
||||
|
||||
#include <asm/cpu.h>
|
||||
#include <asm/elf.h>
|
||||
|
@ -771,6 +772,10 @@ void __init setup_arch(char **cmdline_p)
|
|||
paging_init(&meminfo, mdesc);
|
||||
request_standard_resources(&meminfo, mdesc);
|
||||
|
||||
#ifdef CONFIG_SMP
|
||||
smp_init_cpus();
|
||||
#endif
|
||||
|
||||
cpu_init();
|
||||
|
||||
/*
|
||||
|
|
|
@ -338,7 +338,6 @@ void __init smp_prepare_boot_cpu(void)
|
|||
|
||||
per_cpu(cpu_data, cpu).idle = current;
|
||||
|
||||
cpu_set(cpu, cpu_possible_map);
|
||||
cpu_set(cpu, cpu_present_map);
|
||||
cpu_set(cpu, cpu_online_map);
|
||||
}
|
||||
|
|
|
@ -59,6 +59,17 @@
|
|||
* struct sembuf loses its padding with EABI. Since arrays of them are
|
||||
* used they have to be copyed to remove the padding. Compatibility wrappers
|
||||
* provided below.
|
||||
*
|
||||
* sys_bind:
|
||||
* sys_connect:
|
||||
* sys_sendmsg:
|
||||
* sys_sendto:
|
||||
* sys_socketcall:
|
||||
*
|
||||
* struct sockaddr_un loses its padding with EABI. Since the size of the
|
||||
* structure is used as a validation test in unix_mkname(), we need to
|
||||
* change the length argument to 110 whenever it is 112. Compatibility
|
||||
* wrappers provided below.
|
||||
*/
|
||||
|
||||
#include <linux/syscalls.h>
|
||||
|
@ -67,6 +78,8 @@
|
|||
#include <linux/fcntl.h>
|
||||
#include <linux/eventpoll.h>
|
||||
#include <linux/sem.h>
|
||||
#include <linux/socket.h>
|
||||
#include <linux/net.h>
|
||||
#include <asm/ipc.h>
|
||||
#include <asm/uaccess.h>
|
||||
|
||||
|
@ -337,3 +350,91 @@ asmlinkage int sys_oabi_ipc(uint call, int first, int second, int third,
|
|||
return sys_ipc(call, first, second, third, ptr, fifth);
|
||||
}
|
||||
}
|
||||
|
||||
asmlinkage long sys_oabi_bind(int fd, struct sockaddr __user *addr, int addrlen)
|
||||
{
|
||||
sa_family_t sa_family;
|
||||
if (addrlen == 112 &&
|
||||
get_user(sa_family, &addr->sa_family) == 0 &&
|
||||
sa_family == AF_UNIX)
|
||||
addrlen = 110;
|
||||
return sys_bind(fd, addr, addrlen);
|
||||
}
|
||||
|
||||
asmlinkage long sys_oabi_connect(int fd, struct sockaddr __user *addr, int addrlen)
|
||||
{
|
||||
sa_family_t sa_family;
|
||||
if (addrlen == 112 &&
|
||||
get_user(sa_family, &addr->sa_family) == 0 &&
|
||||
sa_family == AF_UNIX)
|
||||
addrlen = 110;
|
||||
return sys_connect(fd, addr, addrlen);
|
||||
}
|
||||
|
||||
asmlinkage long sys_oabi_sendto(int fd, void __user *buff,
|
||||
size_t len, unsigned flags,
|
||||
struct sockaddr __user *addr,
|
||||
int addrlen)
|
||||
{
|
||||
sa_family_t sa_family;
|
||||
if (addrlen == 112 &&
|
||||
get_user(sa_family, &addr->sa_family) == 0 &&
|
||||
sa_family == AF_UNIX)
|
||||
addrlen = 110;
|
||||
return sys_sendto(fd, buff, len, flags, addr, addrlen);
|
||||
}
|
||||
|
||||
asmlinkage long sys_oabi_sendmsg(int fd, struct msghdr __user *msg, unsigned flags)
|
||||
{
|
||||
struct sockaddr __user *addr;
|
||||
int msg_namelen;
|
||||
sa_family_t sa_family;
|
||||
if (msg &&
|
||||
get_user(msg_namelen, &msg->msg_namelen) == 0 &&
|
||||
msg_namelen == 112 &&
|
||||
get_user(addr, &msg->msg_name) == 0 &&
|
||||
get_user(sa_family, &addr->sa_family) == 0 &&
|
||||
sa_family == AF_UNIX)
|
||||
{
|
||||
/*
|
||||
* HACK ALERT: there is a limit to how much backward bending
|
||||
* we should do for what is actually a transitional
|
||||
* compatibility layer. This already has known flaws with
|
||||
* a few ioctls that we don't intend to fix. Therefore
|
||||
* consider this blatent hack as another one... and take care
|
||||
* to run for cover. In most cases it will "just work fine".
|
||||
* If it doesn't, well, tough.
|
||||
*/
|
||||
put_user(110, &msg->msg_namelen);
|
||||
}
|
||||
return sys_sendmsg(fd, msg, flags);
|
||||
}
|
||||
|
||||
asmlinkage long sys_oabi_socketcall(int call, unsigned long __user *args)
|
||||
{
|
||||
unsigned long r = -EFAULT, a[6];
|
||||
|
||||
switch (call) {
|
||||
case SYS_BIND:
|
||||
if (copy_from_user(a, args, 3 * sizeof(long)) == 0)
|
||||
r = sys_oabi_bind(a[0], (struct sockaddr __user *)a[1], a[2]);
|
||||
break;
|
||||
case SYS_CONNECT:
|
||||
if (copy_from_user(a, args, 3 * sizeof(long)) == 0)
|
||||
r = sys_oabi_connect(a[0], (struct sockaddr __user *)a[1], a[2]);
|
||||
break;
|
||||
case SYS_SENDTO:
|
||||
if (copy_from_user(a, args, 6 * sizeof(long)) == 0)
|
||||
r = sys_oabi_sendto(a[0], (void __user *)a[1], a[2], a[3],
|
||||
(struct sockaddr __user *)a[4], a[5]);
|
||||
break;
|
||||
case SYS_SENDMSG:
|
||||
if (copy_from_user(a, args, 3 * sizeof(long)) == 0)
|
||||
r = sys_oabi_sendmsg(a[0], (struct msghdr __user *)a[1], a[2]);
|
||||
break;
|
||||
default:
|
||||
r = sys_socketcall(call, args);
|
||||
}
|
||||
|
||||
return r;
|
||||
}
|
||||
|
|
|
@ -19,6 +19,7 @@
|
|||
#include <linux/personality.h>
|
||||
#include <linux/ptrace.h>
|
||||
#include <linux/kallsyms.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/init.h>
|
||||
|
||||
#include <asm/atomic.h>
|
||||
|
@ -231,6 +232,13 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
|
|||
__die(str, err, thread, regs);
|
||||
bust_spinlocks(0);
|
||||
spin_unlock_irq(&die_lock);
|
||||
|
||||
if (panic_on_oops) {
|
||||
printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n");
|
||||
ssleep(5);
|
||||
panic("Fatal exception");
|
||||
}
|
||||
|
||||
do_exit(SIGSEGV);
|
||||
}
|
||||
|
||||
|
|
|
@ -100,8 +100,10 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
|
|||
at91_set_gpio_input(data->vbus_pin, 0);
|
||||
at91_set_deglitch(data->vbus_pin, 1);
|
||||
}
|
||||
if (data->pullup_pin)
|
||||
if (data->pullup_pin) {
|
||||
at91_set_gpio_output(data->pullup_pin, 0);
|
||||
at91_set_multi_drive(data->pullup_pin, 1);
|
||||
}
|
||||
|
||||
udc_data = *data;
|
||||
platform_device_register(&at91rm9200_udc_device);
|
||||
|
|
|
@ -159,6 +159,23 @@ int __init_or_module at91_set_deglitch(unsigned pin, int is_on)
|
|||
}
|
||||
EXPORT_SYMBOL(at91_set_deglitch);
|
||||
|
||||
/*
|
||||
* enable/disable the multi-driver; This is only valid for output and
|
||||
* allows the output pin to run as an open collector output.
|
||||
*/
|
||||
int __init_or_module at91_set_multi_drive(unsigned pin, int is_on)
|
||||
{
|
||||
void __iomem *pio = pin_to_controller(pin);
|
||||
unsigned mask = pin_to_mask(pin);
|
||||
|
||||
if (!pio)
|
||||
return -EINVAL;
|
||||
|
||||
__raw_writel(mask, pio + (is_on ? PIO_MDER : PIO_MDDR));
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL(at91_set_multi_drive);
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
|
||||
|
||||
|
|
|
@ -24,6 +24,8 @@ config ARCH_CEIVA
|
|||
|
||||
config ARCH_CLEP7312
|
||||
bool "CLEP7312"
|
||||
help
|
||||
Boards based on the Cirrus Logic 7212/7312 chips.
|
||||
|
||||
config ARCH_EDB7211
|
||||
bool "EDB7211"
|
||||
|
|
|
@ -27,7 +27,6 @@
|
|||
#include <asm/mach/arch.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include "generic.h"
|
||||
#include <asm/serial.h>
|
||||
|
||||
static struct resource cs89x0_resources[] = {
|
||||
[0] = {
|
||||
|
|
|
@ -469,7 +469,9 @@ static void cp_clcd_enable(struct clcd_fb *fb)
|
|||
if (fb->fb.var.bits_per_pixel <= 8)
|
||||
val = CM_CTRL_LCDMUXSEL_VGA_8421BPP;
|
||||
else if (fb->fb.var.bits_per_pixel <= 16)
|
||||
val = CM_CTRL_LCDMUXSEL_VGA_16BPP;
|
||||
val = CM_CTRL_LCDMUXSEL_VGA_16BPP
|
||||
| CM_CTRL_LCDEN0 | CM_CTRL_LCDEN1
|
||||
| CM_CTRL_STATIC1 | CM_CTRL_STATIC2;
|
||||
else
|
||||
val = 0; /* no idea for this, don't trust the docs */
|
||||
|
||||
|
|
|
@ -140,6 +140,18 @@ static void __init poke_milo(void)
|
|||
mb();
|
||||
}
|
||||
|
||||
/*
|
||||
* Initialise the CPU possible map early - this describes the CPUs
|
||||
* which may be present or become present in the system.
|
||||
*/
|
||||
void __init smp_init_cpus(void)
|
||||
{
|
||||
unsigned int i, ncores = get_core_count();
|
||||
|
||||
for (i = 0; i < ncores; i++)
|
||||
cpu_set(i, cpu_possible_map);
|
||||
}
|
||||
|
||||
void __init smp_prepare_cpus(unsigned int max_cpus)
|
||||
{
|
||||
unsigned int ncores = get_core_count();
|
||||
|
@ -176,14 +188,11 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
|
|||
max_cpus = ncores;
|
||||
|
||||
/*
|
||||
* Initialise the possible/present maps.
|
||||
* cpu_possible_map describes the set of CPUs which may be present
|
||||
* cpu_present_map describes the set of CPUs populated
|
||||
* Initialise the present map, which describes the set of CPUs
|
||||
* actually populated at the present time.
|
||||
*/
|
||||
for (i = 0; i < max_cpus; i++) {
|
||||
cpu_set(i, cpu_possible_map);
|
||||
for (i = 0; i < max_cpus; i++)
|
||||
cpu_set(i, cpu_present_map);
|
||||
}
|
||||
|
||||
/*
|
||||
* Do we need any more CPUs? If so, then let them know where
|
||||
|
|
|
@ -13,7 +13,6 @@
|
|||
#include <linux/mm.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/config.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/major.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
|
|
@ -12,7 +12,6 @@
|
|||
#include <linux/mm.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/config.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/major.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
|
|
@ -106,6 +106,7 @@ static void __init enp2611_pci_preinit(void)
|
|||
{
|
||||
ixp2000_reg_write(IXP2000_PCI_ADDR_EXT, 0x00100000);
|
||||
ixp2000_pci_preinit();
|
||||
pcibios_setup("firmware");
|
||||
}
|
||||
|
||||
static inline int enp2611_pci_valid_device(struct pci_bus *bus,
|
||||
|
|
|
@ -68,6 +68,7 @@ void __init ixdp2400_pci_preinit(void)
|
|||
{
|
||||
ixp2000_reg_write(IXP2000_PCI_ADDR_EXT, 0x00100000);
|
||||
ixp2000_pci_preinit();
|
||||
pcibios_setup("firmware");
|
||||
}
|
||||
|
||||
int ixdp2400_pci_setup(int nr, struct pci_sys_data *sys)
|
||||
|
|
|
@ -212,6 +212,7 @@ void __init ixdp2x01_pci_preinit(void)
|
|||
{
|
||||
ixp2000_reg_write(IXP2000_PCI_ADDR_EXT, 0x00000000);
|
||||
ixp2000_pci_preinit();
|
||||
pcibios_setup("firmware");
|
||||
}
|
||||
|
||||
#define DEVPIN(dev, pin) ((pin) | ((dev) << 3))
|
||||
|
@ -299,7 +300,9 @@ struct hw_pci ixdp2x01_pci __initdata = {
|
|||
|
||||
int __init ixdp2x01_pci_init(void)
|
||||
{
|
||||
pci_common_init(&ixdp2x01_pci);
|
||||
if (machine_is_ixdp2401() || machine_is_ixdp2801())
|
||||
pci_common_init(&ixdp2x01_pci);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
@ -111,24 +111,30 @@ static int ixp4xx_set_irq_type(unsigned int irq, unsigned int type)
|
|||
if (line < 0)
|
||||
return -EINVAL;
|
||||
|
||||
if (type & IRQT_BOTHEDGE) {
|
||||
switch (type){
|
||||
case IRQT_BOTHEDGE:
|
||||
int_style = IXP4XX_GPIO_STYLE_TRANSITIONAL;
|
||||
irq_type = IXP4XX_IRQ_EDGE;
|
||||
} else if (type & IRQT_RISING) {
|
||||
break;
|
||||
case IRQT_RISING:
|
||||
int_style = IXP4XX_GPIO_STYLE_RISING_EDGE;
|
||||
irq_type = IXP4XX_IRQ_EDGE;
|
||||
} else if (type & IRQT_FALLING) {
|
||||
break;
|
||||
case IRQT_FALLING:
|
||||
int_style = IXP4XX_GPIO_STYLE_FALLING_EDGE;
|
||||
irq_type = IXP4XX_IRQ_EDGE;
|
||||
} else if (type & IRQT_HIGH) {
|
||||
break;
|
||||
case IRQT_HIGH:
|
||||
int_style = IXP4XX_GPIO_STYLE_ACTIVE_HIGH;
|
||||
irq_type = IXP4XX_IRQ_LEVEL;
|
||||
} else if (type & IRQT_LOW) {
|
||||
break;
|
||||
case IRQT_LOW:
|
||||
int_style = IXP4XX_GPIO_STYLE_ACTIVE_LOW;
|
||||
irq_type = IXP4XX_IRQ_LEVEL;
|
||||
} else
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
|
||||
}
|
||||
ixp4xx_config_irq(irq, irq_type);
|
||||
|
||||
if (line >= 8) { /* pins 8-15 */
|
||||
|
|
|
@ -77,6 +77,9 @@ static int __init nslu2_power_init(void)
|
|||
|
||||
static void __exit nslu2_power_exit(void)
|
||||
{
|
||||
if (!(machine_is_nslu2()))
|
||||
return;
|
||||
|
||||
free_irq(NSLU2_RB_IRQ, NULL);
|
||||
free_irq(NSLU2_PB_IRQ, NULL);
|
||||
}
|
||||
|
|
|
@ -27,8 +27,6 @@ static struct flash_platform_data nslu2_flash_data = {
|
|||
};
|
||||
|
||||
static struct resource nslu2_flash_resource = {
|
||||
.start = NSLU2_FLASH_BASE,
|
||||
.end = NSLU2_FLASH_BASE + NSLU2_FLASH_SIZE,
|
||||
.flags = IORESOURCE_MEM,
|
||||
};
|
||||
|
||||
|
@ -52,6 +50,12 @@ static struct platform_device nslu2_i2c_controller = {
|
|||
.num_resources = 0,
|
||||
};
|
||||
|
||||
static struct platform_device nslu2_beeper = {
|
||||
.name = "ixp4xx-beeper",
|
||||
.id = NSLU2_GPIO_BUZZ,
|
||||
.num_resources = 0,
|
||||
};
|
||||
|
||||
static struct resource nslu2_uart_resources[] = {
|
||||
{
|
||||
.start = IXP4XX_UART1_BASE_PHYS,
|
||||
|
@ -99,6 +103,7 @@ static struct platform_device *nslu2_devices[] __initdata = {
|
|||
&nslu2_i2c_controller,
|
||||
&nslu2_flash,
|
||||
&nslu2_uart,
|
||||
&nslu2_beeper,
|
||||
};
|
||||
|
||||
static void nslu2_power_off(void)
|
||||
|
@ -116,6 +121,10 @@ static void __init nslu2_init(void)
|
|||
{
|
||||
ixp4xx_sys_init();
|
||||
|
||||
nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
|
||||
nslu2_flash_resource.end =
|
||||
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
|
||||
|
||||
pm_power_off = nslu2_power_off;
|
||||
|
||||
platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
|
||||
|
|
|
@ -30,6 +30,7 @@
|
|||
|
||||
static void __init omap_generic_init_irq(void)
|
||||
{
|
||||
omap1_init_common_hw();
|
||||
omap_init_irq();
|
||||
}
|
||||
|
||||
|
@ -104,7 +105,7 @@ static void __init omap_generic_init(void)
|
|||
|
||||
static void __init omap_generic_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap1_map_common_io();
|
||||
}
|
||||
|
||||
MACHINE_START(OMAP_GENERIC, "Generic OMAP1510/1610/1710")
|
||||
|
|
|
@ -128,6 +128,7 @@ static void __init h2_init_smc91x(void)
|
|||
|
||||
static void __init h2_init_irq(void)
|
||||
{
|
||||
omap1_init_common_hw();
|
||||
omap_init_irq();
|
||||
omap_gpio_init();
|
||||
h2_init_smc91x();
|
||||
|
@ -194,7 +195,7 @@ static void __init h2_init(void)
|
|||
|
||||
static void __init h2_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap1_map_common_io();
|
||||
}
|
||||
|
||||
MACHINE_START(OMAP_H2, "TI-H2")
|
||||
|
|
|
@ -203,6 +203,7 @@ static void __init h3_init_smc91x(void)
|
|||
|
||||
void h3_init_irq(void)
|
||||
{
|
||||
omap1_init_common_hw();
|
||||
omap_init_irq();
|
||||
omap_gpio_init();
|
||||
h3_init_smc91x();
|
||||
|
@ -210,7 +211,7 @@ void h3_init_irq(void)
|
|||
|
||||
static void __init h3_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap1_map_common_io();
|
||||
}
|
||||
|
||||
MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
|
||||
|
|
|
@ -181,6 +181,7 @@ static void __init innovator_init_smc91x(void)
|
|||
|
||||
void innovator_init_irq(void)
|
||||
{
|
||||
omap1_init_common_hw();
|
||||
omap_init_irq();
|
||||
omap_gpio_init();
|
||||
#ifdef CONFIG_ARCH_OMAP15XX
|
||||
|
@ -285,7 +286,7 @@ static void __init innovator_init(void)
|
|||
|
||||
static void __init innovator_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap1_map_common_io();
|
||||
|
||||
#ifdef CONFIG_ARCH_OMAP15XX
|
||||
if (cpu_is_omap1510()) {
|
||||
|
|
|
@ -65,6 +65,7 @@ static struct omap_board_config_kernel netstar_config[] = {
|
|||
|
||||
static void __init netstar_init_irq(void)
|
||||
{
|
||||
omap1_init_common_hw();
|
||||
omap_init_irq();
|
||||
omap_gpio_init();
|
||||
}
|
||||
|
@ -108,7 +109,7 @@ static void __init netstar_init(void)
|
|||
|
||||
static void __init netstar_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap1_map_common_io();
|
||||
}
|
||||
|
||||
#define MACHINE_PANICED 1
|
||||
|
|
|
@ -169,6 +169,7 @@ static void __init osk_init_cf(void)
|
|||
|
||||
static void __init osk_init_irq(void)
|
||||
{
|
||||
omap1_init_common_hw();
|
||||
omap_init_irq();
|
||||
omap_gpio_init();
|
||||
osk_init_smc91x();
|
||||
|
@ -269,7 +270,7 @@ static void __init osk_init(void)
|
|||
|
||||
static void __init osk_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap1_map_common_io();
|
||||
}
|
||||
|
||||
MACHINE_START(OMAP_OSK, "TI-OSK")
|
||||
|
|
|
@ -34,6 +34,7 @@
|
|||
|
||||
static void __init omap_generic_init_irq(void)
|
||||
{
|
||||
omap1_init_common_hw();
|
||||
omap_init_irq();
|
||||
}
|
||||
|
||||
|
@ -72,7 +73,7 @@ static void __init omap_generic_init(void)
|
|||
|
||||
static void __init omap_generic_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap1_map_common_io();
|
||||
}
|
||||
|
||||
MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
|
||||
|
|
|
@ -144,6 +144,7 @@ static void __init perseus2_init_smc91x(void)
|
|||
|
||||
void omap_perseus2_init_irq(void)
|
||||
{
|
||||
omap1_init_common_hw();
|
||||
omap_init_irq();
|
||||
omap_gpio_init();
|
||||
perseus2_init_smc91x();
|
||||
|
@ -160,7 +161,7 @@ static struct map_desc omap_perseus2_io_desc[] __initdata = {
|
|||
|
||||
static void __init omap_perseus2_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap1_map_common_io();
|
||||
iotable_init(omap_perseus2_io_desc,
|
||||
ARRAY_SIZE(omap_perseus2_io_desc));
|
||||
|
||||
|
|
|
@ -162,6 +162,7 @@ static struct omap_board_config_kernel voiceblue_config[] = {
|
|||
|
||||
static void __init voiceblue_init_irq(void)
|
||||
{
|
||||
omap1_init_common_hw();
|
||||
omap_init_irq();
|
||||
omap_gpio_init();
|
||||
}
|
||||
|
@ -206,7 +207,7 @@ static void __init voiceblue_init(void)
|
|||
|
||||
static void __init voiceblue_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap1_map_common_io();
|
||||
}
|
||||
|
||||
#define MACHINE_PANICED 1
|
||||
|
|
|
@ -13,6 +13,7 @@
|
|||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
|
||||
#include <asm/tlb.h>
|
||||
#include <asm/mach/map.h>
|
||||
#include <asm/io.h>
|
||||
#include <asm/arch/mux.h>
|
||||
|
@ -83,15 +84,24 @@ static struct map_desc omap16xx_io_desc[] __initdata = {
|
|||
};
|
||||
#endif
|
||||
|
||||
static int initialized = 0;
|
||||
|
||||
static void __init _omap_map_io(void)
|
||||
/*
|
||||
* Maps common IO regions for omap1. This should only get called from
|
||||
* board specific init.
|
||||
*/
|
||||
void __init omap1_map_common_io(void)
|
||||
{
|
||||
initialized = 1;
|
||||
|
||||
/* We have to initialize the IO space mapping before we can run
|
||||
* cpu_is_omapxxx() macros. */
|
||||
iotable_init(omap_io_desc, ARRAY_SIZE(omap_io_desc));
|
||||
|
||||
/* Normally devicemaps_init() would flush caches and tlb after
|
||||
* mdesc->map_io(), but we must also do it here because of the CPU
|
||||
* revision check below.
|
||||
*/
|
||||
local_flush_tlb_all();
|
||||
flush_cache_all();
|
||||
|
||||
/* We want to check CPU revision early for cpu_is_omapxxxx() macros.
|
||||
* IO space mapping must be initialized before we can do that.
|
||||
*/
|
||||
omap_check_revision();
|
||||
|
||||
#ifdef CONFIG_ARCH_OMAP730
|
||||
|
@ -111,7 +121,14 @@ static void __init _omap_map_io(void)
|
|||
#endif
|
||||
|
||||
omap_sram_init();
|
||||
}
|
||||
|
||||
/*
|
||||
* Common low-level hardware init for omap1. This should only get called from
|
||||
* board specific init.
|
||||
*/
|
||||
void __init omap1_init_common_hw()
|
||||
{
|
||||
/* REVISIT: Refer to OMAP5910 Errata, Advisory SYS_1: "Timeout Abort
|
||||
* on a Posted Write in the TIPB Bridge".
|
||||
*/
|
||||
|
@ -121,16 +138,7 @@ static void __init _omap_map_io(void)
|
|||
/* Must init clocks early to assure that timer interrupt works
|
||||
*/
|
||||
omap1_clk_init();
|
||||
}
|
||||
|
||||
/*
|
||||
* This should only get called from board specific init
|
||||
*/
|
||||
void __init omap_map_common_io(void)
|
||||
{
|
||||
if (!initialized) {
|
||||
_omap_map_io();
|
||||
omap1_mux_init();
|
||||
}
|
||||
|
||||
omap1_mux_init();
|
||||
}
|
||||
|
||||
|
|
|
@ -33,6 +33,7 @@
|
|||
|
||||
static void __init omap_generic_init_irq(void)
|
||||
{
|
||||
omap2_init_common_hw();
|
||||
omap_init_irq();
|
||||
}
|
||||
|
||||
|
@ -64,7 +65,7 @@ static void __init omap_generic_init(void)
|
|||
|
||||
static void __init omap_generic_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap2_map_common_io();
|
||||
}
|
||||
|
||||
MACHINE_START(OMAP_GENERIC, "Generic OMAP24xx")
|
||||
|
|
|
@ -136,6 +136,7 @@ static inline void __init h4_init_smc91x(void)
|
|||
|
||||
static void __init omap_h4_init_irq(void)
|
||||
{
|
||||
omap2_init_common_hw();
|
||||
omap_init_irq();
|
||||
omap_gpio_init();
|
||||
h4_init_smc91x();
|
||||
|
@ -181,7 +182,7 @@ static void __init omap_h4_init(void)
|
|||
|
||||
static void __init omap_h4_map_io(void)
|
||||
{
|
||||
omap_map_common_io();
|
||||
omap2_map_common_io();
|
||||
}
|
||||
|
||||
MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
|
||||
|
|
|
@ -44,7 +44,7 @@ unsigned int get_clk_frequency_khz( int info)
|
|||
|
||||
/* Read clkcfg register: it has turbo, b, half-turbo (and f) */
|
||||
asm( "mrc\tp14, 0, %0, c6, c0, 0" : "=r" (clkcfg) );
|
||||
t = clkcfg & (1 << 1);
|
||||
t = clkcfg & (1 << 0);
|
||||
ht = clkcfg & (1 << 2);
|
||||
b = clkcfg & (1 << 3);
|
||||
|
||||
|
|
Some files were not shown because too many files have changed in this diff Show more
Loading…
Reference in a new issue