Merge branch 'master'
This commit is contained in:
Kumar Gala
commit
1a02e59a29
6
CREDITS
6
CREDITS
|
|
@ -3643,11 +3643,9 @@ S: Cambridge. CB1 7EG
|
|||
S: England
|
||||
|
||||
N: Chris Wright
|
||||
E: chrisw@osdl.org
|
||||
E: chrisw@sous-sol.org
|
||||
D: hacking on LSM framework and security modules.
|
||||
S: c/o OSDL
|
||||
S: 12725 SW Millikan Way, Suite 400
|
||||
S: Beaverton, OR 97005
|
||||
S: Portland, OR
|
||||
S: USA
|
||||
|
||||
N: Michal Wronski
|
||||
|
|
|
|||
|
|
@ -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
|
||||
-----------------
|
||||
|
|
|
|||
|
|
@ -4,8 +4,9 @@
|
|||
Copyright (C) 2004 BULL SA.
|
||||
Written by Simon.Derr@bull.net
|
||||
|
||||
Portions Copyright (c) 2004 Silicon Graphics, Inc.
|
||||
Portions Copyright (c) 2004-2006 Silicon Graphics, Inc.
|
||||
Modified by Paul Jackson <pj@sgi.com>
|
||||
Modified by Christoph Lameter <clameter@sgi.com>
|
||||
|
||||
CONTENTS:
|
||||
=========
|
||||
|
|
@ -90,7 +91,8 @@ This can be especially valuable on:
|
|||
|
||||
These subsets, or "soft partitions" must be able to be dynamically
|
||||
adjusted, as the job mix changes, without impacting other concurrently
|
||||
executing jobs.
|
||||
executing jobs. The location of the running jobs pages may also be moved
|
||||
when the memory locations are changed.
|
||||
|
||||
The kernel cpuset patch provides the minimum essential kernel
|
||||
mechanisms required to efficiently implement such subsets. It
|
||||
|
|
@ -102,8 +104,8 @@ memory allocator code.
|
|||
1.3 How are cpusets implemented ?
|
||||
---------------------------------
|
||||
|
||||
Cpusets provide a Linux kernel (2.6.7 and above) mechanism to constrain
|
||||
which CPUs and Memory Nodes are used by a process or set of processes.
|
||||
Cpusets provide a Linux kernel mechanism to constrain which CPUs and
|
||||
Memory Nodes are used by a process or set of processes.
|
||||
|
||||
The Linux kernel already has a pair of mechanisms to specify on which
|
||||
CPUs a task may be scheduled (sched_setaffinity) and on which Memory
|
||||
|
|
@ -371,22 +373,17 @@ cpusets memory placement policy 'mems' subsequently changes.
|
|||
If the cpuset flag file 'memory_migrate' is set true, then when
|
||||
tasks are attached to that cpuset, any pages that task had
|
||||
allocated to it on nodes in its previous cpuset are migrated
|
||||
to the tasks new cpuset. Depending on the implementation,
|
||||
this migration may either be done by swapping the page out,
|
||||
so that the next time the page is referenced, it will be paged
|
||||
into the tasks new cpuset, usually on the node where it was
|
||||
referenced, or this migration may be done by directly copying
|
||||
the pages from the tasks previous cpuset to the new cpuset,
|
||||
where possible to the same node, relative to the new cpuset,
|
||||
as the node that held the page, relative to the old cpuset.
|
||||
to the tasks new cpuset. The relative placement of the page within
|
||||
the cpuset is preserved during these migration operations if possible.
|
||||
For example if the page was on the second valid node of the prior cpuset
|
||||
then the page will be placed on the second valid node of the new cpuset.
|
||||
|
||||
Also if 'memory_migrate' is set true, then if that cpusets
|
||||
'mems' file is modified, pages allocated to tasks in that
|
||||
cpuset, that were on nodes in the previous setting of 'mems',
|
||||
will be moved to nodes in the new setting of 'mems.' Again,
|
||||
depending on the implementation, this might be done by swapping,
|
||||
or by direct copying. In either case, pages that were not in
|
||||
the tasks prior cpuset, or in the cpusets prior 'mems' setting,
|
||||
will not be moved.
|
||||
will be moved to nodes in the new setting of 'mems.'
|
||||
Pages that were not in the tasks prior cpuset, or in the cpusets
|
||||
prior 'mems' setting, will not be moved.
|
||||
|
||||
There is an exception to the above. If hotplug functionality is used
|
||||
to remove all the CPUs that are currently assigned to a cpuset,
|
||||
|
|
@ -434,16 +431,6 @@ and then start a subshell 'sh' in that cpuset:
|
|||
# The next line should display '/Charlie'
|
||||
cat /proc/self/cpuset
|
||||
|
||||
In the case that a change of cpuset includes wanting to move already
|
||||
allocated memory pages, consider further the work of IWAMOTO
|
||||
Toshihiro <iwamoto@valinux.co.jp> for page remapping and memory
|
||||
hotremoval, which can be found at:
|
||||
|
||||
http://people.valinux.co.jp/~iwamoto/mh.html
|
||||
|
||||
The integration of cpusets with such memory migration is not yet
|
||||
available.
|
||||
|
||||
In the future, a C library interface to cpusets will likely be
|
||||
available. For now, the only way to query or modify cpusets is
|
||||
via the cpuset file system, using the various cd, mkdir, echo, cat,
|
||||
|
|
|
|||
|
|
@ -111,4 +111,8 @@ source: linux/Documentation/video4linux/CARDLIST.bttv
|
|||
If you have problems with this please do ask on the mailing list.
|
||||
|
||||
--
|
||||
Authors: Richard Walker, Jamie Honan, Michael Hunold, Manu Abraham
|
||||
Authors: Richard Walker,
|
||||
Jamie Honan,
|
||||
Michael Hunold,
|
||||
Manu Abraham,
|
||||
Michael Krufky
|
||||
|
|
|
|||
|
|
@ -171,3 +171,21 @@ 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>
|
||||
|
||||
---------------------------
|
||||
|
||||
What: Support for NEC DDB5074 and DDB5476 evaluation boards.
|
||||
When: June 2006
|
||||
Why: Board specific code doesn't build anymore since ~2.6.0 and no
|
||||
users have complained indicating there is no more need for these
|
||||
boards. This should really be considered a last call.
|
||||
Who: Ralf Baechle <ralf@linux-mips.org>
|
||||
|
|
|
|||
|
|
@ -457,6 +457,12 @@ ChangeLog
|
|||
|
||||
Note, a technical ChangeLog aimed at kernel hackers is in fs/ntfs/ChangeLog.
|
||||
|
||||
2.1.26:
|
||||
- Implement support for sector sizes above 512 bytes (up to the maximum
|
||||
supported by NTFS which is 4096 bytes).
|
||||
- Enhance support for NTFS volumes which were supported by Windows but
|
||||
not by Linux due to invalid attribute list attribute flags.
|
||||
- A few minor updates and bug fixes.
|
||||
2.1.25:
|
||||
- Write support is now extended with write(2) being able to both
|
||||
overwrite existing file data and to extend files. Also, if a write
|
||||
|
|
|
|||
|
|
@ -79,15 +79,27 @@ 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
|
||||
|
||||
Note that trying to mount a tmpfs with an mpol option will fail if the
|
||||
running kernel does not support NUMA; and will fail if its nodelist
|
||||
specifies a node >= MAX_NUMNODES. If your system relies on that tmpfs
|
||||
being mounted, but from time to time runs a kernel built without NUMA
|
||||
capability (perhaps a safe recovery kernel), or configured to support
|
||||
fewer nodes, then it is advisable to omit the mpol option from automatic
|
||||
mount options. It can be added later, when the tmpfs is already mounted
|
||||
on MountPoint, by 'mount -o remount,mpol=Policy:NodeList MountPoint'.
|
||||
|
||||
|
||||
To specify the initial root directory you can use the following mount
|
||||
|
|
@ -109,4 +121,4 @@ 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.
|
||||
|
|
@ -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
|
||||
-----------
|
||||
|
|
|
|||
|
|
@ -335,6 +335,12 @@ running once the system is up.
|
|||
timesource is not avalible, it defaults to PIT.
|
||||
Format: { pit | tsc | cyclone | pmtmr }
|
||||
|
||||
disable_8254_timer
|
||||
enable_8254_timer
|
||||
[IA32/X86_64] Disable/Enable interrupt 0 timer routing
|
||||
over the 8254 in addition to over the IO-APIC. The
|
||||
kernel tries to set a sensible default.
|
||||
|
||||
hpet= [IA-32,HPET] option to disable HPET and use PIT.
|
||||
Format: disable
|
||||
|
||||
|
|
@ -1034,6 +1040,8 @@ running once the system is up.
|
|||
|
||||
nomce [IA-32] Machine Check Exception
|
||||
|
||||
nomca [IA-64] Disable machine check abort handling
|
||||
|
||||
noresidual [PPC] Don't use residual data on PReP machines.
|
||||
|
||||
noresume [SWSUSP] Disables resume and restores original swap
|
||||
|
|
@ -1133,6 +1141,8 @@ 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
|
||||
|
|
@ -1280,6 +1290,19 @@ running once the system is up.
|
|||
New name for the ramdisk parameter.
|
||||
See Documentation/ramdisk.txt.
|
||||
|
||||
rcu.blimit= [KNL,BOOT] Set maximum number of finished
|
||||
RCU callbacks to process in one batch.
|
||||
|
||||
rcu.qhimark= [KNL,BOOT] Set threshold of queued
|
||||
RCU callbacks over which batch limiting is disabled.
|
||||
|
||||
rcu.qlowmark= [KNL,BOOT] Set threshold of queued
|
||||
RCU callbacks below which batch limiting is re-enabled.
|
||||
|
||||
rcu.rsinterval= [KNL,BOOT,SMP] Set the number of additional
|
||||
RCU callbacks to queued before forcing reschedule
|
||||
on all cpus.
|
||||
|
||||
rdinit= [KNL]
|
||||
Format: <full_path>
|
||||
Run specified binary instead of /init from the ramdisk,
|
||||
|
|
@ -1636,6 +1659,9 @@ 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
|
||||
----------------------------------------
|
||||
|
|
|
|||
|
|
@ -1,3 +1,26 @@
|
|||
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
|
||||
|
|
|
|||
|
|
@ -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
|
||||
|
|
|
|||
|
|
@ -13,7 +13,7 @@
|
|||
12 -> Medion 7134 [16be:0003]
|
||||
13 -> Typhoon TV+Radio 90031
|
||||
14 -> ELSA EX-VISION 300TV [1048:226b]
|
||||
15 -> ELSA EX-VISION 500TV [1048:226b]
|
||||
15 -> ELSA EX-VISION 500TV [1048:226a]
|
||||
16 -> ASUS TV-FM 7134 [1043:4842,1043:4830,1043:4840]
|
||||
17 -> AOPEN VA1000 POWER [1131:7133]
|
||||
18 -> BMK MPEX No Tuner
|
||||
|
|
@ -75,7 +75,7 @@
|
|||
74 -> LifeView FlyTV Platinum Mini2 [14c0:1212]
|
||||
75 -> AVerMedia AVerTVHD MCE A180 [1461:1044]
|
||||
76 -> SKNet MonsterTV Mobile [1131:4ee9]
|
||||
77 -> Pinnacle PCTV 110i (saa7133) [11bd:002e]
|
||||
77 -> Pinnacle PCTV 40i/50i/110i (saa7133) [11bd:002e]
|
||||
78 -> ASUSTeK P7131 Dual [1043:4862]
|
||||
79 -> Sedna/MuchTV PC TV Cardbus TV/Radio (ITO25 Rev:2B)
|
||||
80 -> ASUS Digimatrix TV [1043:0210]
|
||||
|
|
|
|||
|
|
@ -12,12 +12,18 @@ 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
|
||||
a new memory policy via mbind(). 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.
|
||||
Page migration functions are provided by the numactl package by Andi Kleen
|
||||
(a version later than 0.9.3 is required. Get it from
|
||||
ftp://ftp.suse.com/pub/people/ak). numactl provided libnuma which
|
||||
provides an interface similar to other numa functionality for page migration.
|
||||
cat /proc/<pid>/numa_maps allows an easy review of where the pages of
|
||||
a process are located. See also the numa_maps manpage in the numactl package.
|
||||
|
||||
Manual migration is very useful if for example the scheduler has relocated
|
||||
Manual migration is 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
|
||||
|
|
@ -25,10 +31,12 @@ 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).
|
||||
move pages when a task is moved to another cpuset (See ../cpusets.txt).
|
||||
Cpusets allows the automation of process locality. 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. Also the pages
|
||||
of processes in a cpuset are moved if the allowed memory nodes of a
|
||||
cpuset are changed.
|
||||
|
||||
Page migration allows the preservation of the relative location of pages
|
||||
within a group of nodes for all migration techniques which will preserve a
|
||||
|
|
@ -37,22 +45,26 @@ 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.
|
||||
description for those trying to use migrate_pages() from the kernel
|
||||
(for userspace usage see the Andi Kleen's numactl package mentioned above)
|
||||
and then a low level description of how the low level details work.
|
||||
|
||||
A. Use of migrate_pages()
|
||||
-------------------------
|
||||
A. In kernel 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().
|
||||
Calling isolate_lru_page increases the references to the page
|
||||
so that it cannot vanish under us.
|
||||
so that it cannot vanish while the page migration occurs.
|
||||
It also prevents the swapper or other scans to encounter
|
||||
the page.
|
||||
|
||||
2. Generate a list of newly allocates page to move the contents
|
||||
of the first list to.
|
||||
2. Generate a list of newly allocates page. These pages will contain the
|
||||
contents of the pages from the first list after page migration is
|
||||
complete.
|
||||
|
||||
3. The migrate_pages() function is called which attempts
|
||||
to do the migration. It returns the moved pages in the
|
||||
|
|
@ -63,13 +75,17 @@ A. Use of migrate_pages()
|
|||
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()!
|
||||
increased by isolate_lru_pages() if putback_to_lru_pages() is not
|
||||
used! The kernel may want to handle the various cases of failures in
|
||||
different ways.
|
||||
|
||||
B. Operation of migrate_pages()
|
||||
--------------------------------
|
||||
B. How migrate_pages() works
|
||||
----------------------------
|
||||
|
||||
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.
|
||||
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. The page has
|
||||
already been removed from the LRU via isolate_lru_page() and the refcount
|
||||
is increased so that the page cannot be freed while page migration occurs.
|
||||
|
||||
Steps:
|
||||
|
||||
|
|
@ -79,36 +95,40 @@ Steps:
|
|||
|
||||
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.
|
||||
to preserve the information contain in the page table maps while
|
||||
page migration occurs.
|
||||
|
||||
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.
|
||||
page immediately lock while the move is in progress.
|
||||
|
||||
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.
|
||||
5. All the page table references to the page are either dropped (file
|
||||
backed pages) or converted to swap references (anonymous pages).
|
||||
This should decrease the reference count.
|
||||
|
||||
6. The radix tree lock is taken
|
||||
6. The radix tree lock is taken. This will cause all processes trying
|
||||
to reestablish a pte to block on the radix tree spinlock.
|
||||
|
||||
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.
|
||||
page then we back out because someone else modified the mapping first.
|
||||
|
||||
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.
|
||||
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.
|
||||
12. The reference count of the old page is dropped because the radix tree
|
||||
reference is gone.
|
||||
|
||||
13. The radix tree lock is dropped.
|
||||
13. The radix tree lock is dropped. With that lookups become possible again
|
||||
and other processes will move from spinning on the tree lock to sleeping on
|
||||
the locked new page.
|
||||
|
||||
14. The page contents are copied to the new page.
|
||||
|
||||
|
|
@ -119,11 +139,37 @@ Steps:
|
|||
|
||||
17. Queued up writeback on the new page is triggered.
|
||||
|
||||
18. If swap pte's were generated for the page then remove them again.
|
||||
18. If swap pte's were generated for the page then replace them with real
|
||||
ptes. This will reenable access for processes not blocked by the page lock.
|
||||
|
||||
19. The locks are dropped from the old and new page.
|
||||
19. The page locks are dropped from the old and new page.
|
||||
Processes waiting on the page lock can continue.
|
||||
|
||||
20. The new page is moved to the LRU.
|
||||
20. The new page is moved to the LRU and can be scanned by the swapper
|
||||
etc again.
|
||||
|
||||
Christoph Lameter, December 19, 2005.
|
||||
TODO list
|
||||
---------
|
||||
|
||||
- Page migration requires the use of swap handles to preserve the
|
||||
information of the anonymous page table entries. This means that swap
|
||||
space is reserved but never used. The maximum number of swap handles used
|
||||
is determined by CHUNK_SIZE (see mm/mempolicy.c) per ongoing migration.
|
||||
Reservation of pages could be avoided by having a special type of swap
|
||||
handle that does not require swap space and that would only track the page
|
||||
references. Something like that was proposed by Marcelo Tosatti in the
|
||||
past (search for migration cache on lkml or linux-mm@kvack.org).
|
||||
|
||||
- Page migration unmaps ptes for file backed pages and requires page
|
||||
faults to reestablish these ptes. This could be optimized by somehow
|
||||
recording the references before migration and then reestablish them later.
|
||||
However, there are several locking challenges that have to be overcome
|
||||
before this is possible.
|
||||
|
||||
- Page migration generates read ptes for anonymous pages. Dirty page
|
||||
faults are required to make the pages writable again. It may be possible
|
||||
to generate a pte marked dirty if it is known that the page is dirty and
|
||||
that this process has the only reference to that page.
|
||||
|
||||
Christoph Lameter, March 8, 2006.
|
||||
|
||||
|
|
|
|||
|
|
@ -52,6 +52,10 @@ APICs
|
|||
apicmaintimer. Useful when your PIT timer is totally
|
||||
broken.
|
||||
|
||||
disable_8254_timer / enable_8254_timer
|
||||
Enable interrupt 0 timer routing over the 8254 in addition to over
|
||||
the IO-APIC. The kernel tries to set a sensible default.
|
||||
|
||||
Early Console
|
||||
|
||||
syntax: earlyprintk=vga
|
||||
|
|
|
|||
23
MAINTAINERS
23
MAINTAINERS
|
|
@ -838,7 +838,6 @@ S: Maintained
|
|||
|
||||
DVB SUBSYSTEM AND DRIVERS
|
||||
P: LinuxTV.org Project
|
||||
M: mchehab@infradead.org
|
||||
M: v4l-dvb-maintainer@linuxtv.org
|
||||
L: linux-dvb@linuxtv.org (subscription required)
|
||||
W: http://linuxtv.org/
|
||||
|
|
@ -1632,8 +1631,8 @@ S: Supported
|
|||
|
||||
LINUX SECURITY MODULE (LSM) FRAMEWORK
|
||||
P: Chris Wright
|
||||
M: chrisw@osdl.org
|
||||
L: linux-security-module@wirex.com
|
||||
M: chrisw@sous-sol.org
|
||||
L: linux-security-module@vger.kernel.org
|
||||
W: http://lsm.immunix.org
|
||||
T: git kernel.org:/pub/scm/linux/kernel/git/chrisw/lsm-2.6.git
|
||||
S: Supported
|
||||
|
|
@ -2232,7 +2231,23 @@ 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
|
||||
|
|
|
|||
11
Makefile
11
Makefile
|
|
@ -1,7 +1,7 @@
|
|||
VERSION = 2
|
||||
PATCHLEVEL = 6
|
||||
SUBLEVEL = 16
|
||||
EXTRAVERSION =-rc2
|
||||
EXTRAVERSION =-rc6
|
||||
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
|
||||
|
|
@ -906,7 +905,7 @@ define filechk_version.h
|
|||
)
|
||||
endef
|
||||
|
||||
include/linux/version.h: $(srctree)/Makefile .config FORCE
|
||||
include/linux/version.h: $(srctree)/Makefile .config .kernelrelease FORCE
|
||||
$(call filechk,version.h)
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
|
|
|
|||
|
|
@ -151,8 +151,13 @@ handle_irq(int irq, struct pt_regs * regs)
|
|||
}
|
||||
|
||||
irq_enter();
|
||||
/*
|
||||
* __do_IRQ() must be called with IPL_MAX. Note that we do not
|
||||
* explicitly enable interrupts afterwards - some MILO PALcode
|
||||
* (namely LX164 one) seems to have severe problems with RTI
|
||||
* at IPL 0.
|
||||
*/
|
||||
local_irq_disable();
|
||||
__do_IRQ(irq, regs);
|
||||
local_irq_enable();
|
||||
irq_exit();
|
||||
}
|
||||
|
|
|
|||
|
|
@ -78,7 +78,7 @@ menu "System Type"
|
|||
|
||||
choice
|
||||
prompt "ARM system type"
|
||||
default ARCH_RPC
|
||||
default ARCH_VERSATILE
|
||||
|
||||
config ARCH_CLPS7500
|
||||
bool "Cirrus-CL-PS7500FE"
|
||||
|
|
@ -799,6 +799,8 @@ source "drivers/i2c/Kconfig"
|
|||
|
||||
source "drivers/spi/Kconfig"
|
||||
|
||||
source "drivers/w1/Kconfig"
|
||||
|
||||
source "drivers/hwmon/Kconfig"
|
||||
|
||||
#source "drivers/l3/Kconfig"
|
||||
|
|
|
|||
|
|
@ -629,6 +629,22 @@ static int locomo_resume(struct platform_device *dev)
|
|||
}
|
||||
#endif
|
||||
|
||||
|
||||
#define LCM_ALC_EN 0x8000
|
||||
|
||||
void frontlight_set(struct locomo *lchip, int duty, int vr, int bpwf)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
spin_lock_irqsave(&lchip->lock, flags);
|
||||
locomo_writel(bpwf, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
|
||||
udelay(100);
|
||||
locomo_writel(duty, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD);
|
||||
locomo_writel(bpwf | LCM_ALC_EN, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
|
||||
spin_unlock_irqrestore(&lchip->lock, flags);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* locomo_probe - probe for a single LoCoMo chip.
|
||||
* @phys_addr: physical address of device.
|
||||
|
|
@ -688,6 +704,11 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
|
|||
/* FrontLight */
|
||||
locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALS);
|
||||
locomo_writel(0, lchip->base + LOCOMO_FRONTLIGHT + LOCOMO_ALD);
|
||||
|
||||
/* Same constants can be used for collie and poodle
|
||||
(depending on CONFIG options in original sharp code)? */
|
||||
frontlight_set(lchip, 163, 0, 148);
|
||||
|
||||
/* Longtime timer */
|
||||
locomo_writel(0, lchip->base + LOCOMO_LTINT);
|
||||
/* SPI */
|
||||
|
|
|
|||
|
|
@ -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)
|
||||
|
|
|
|||
|
|
@ -57,7 +57,9 @@ int main(void)
|
|||
DEFINE(TI_TP_VALUE, offsetof(struct thread_info, tp_value));
|
||||
DEFINE(TI_FPSTATE, offsetof(struct thread_info, fpstate));
|
||||
DEFINE(TI_VFPSTATE, offsetof(struct thread_info, vfpstate));
|
||||
DEFINE(TI_IWMMXT_STATE, (offsetof(struct thread_info, fpstate)+4)&~7);
|
||||
#ifdef CONFIG_IWMMXT
|
||||
DEFINE(TI_IWMMXT_STATE, offsetof(struct thread_info, fpstate.iwmmxt));
|
||||
#endif
|
||||
BLANK();
|
||||
DEFINE(S_R0, offsetof(struct pt_regs, ARM_r0));
|
||||
DEFINE(S_R1, offsetof(struct pt_regs, ARM_r1));
|
||||
|
|
|
|||
|
|
@ -111,7 +111,7 @@
|
|||
CALL(sys_statfs)
|
||||
/* 100 */ CALL(sys_fstatfs)
|
||||
CALL(sys_ni_syscall)
|
||||
CALL(OBSOLETE(sys_socketcall))
|
||||
CALL(OBSOLETE(ABI(sys_socketcall, sys_oabi_socketcall)))
|
||||
CALL(sys_syslog)
|
||||
CALL(sys_setitimer)
|
||||
/* 105 */ CALL(sys_getitimer)
|
||||
|
|
|
|||
|
|
@ -27,6 +27,8 @@
|
|||
|
||||
#include <asm/mach/arch.h>
|
||||
|
||||
#include "compat.h"
|
||||
|
||||
/*
|
||||
* Usage:
|
||||
* - do not go blindly adding fields, add them at the end
|
||||
|
|
|
|||
13
arch/arm/kernel/compat.h
Normal file
13
arch/arm/kernel/compat.h
Normal file
|
|
@ -0,0 +1,13 @@
|
|||
/*
|
||||
* linux/arch/arm/kernel/compat.h
|
||||
*
|
||||
* Copyright (C) 2001 Russell King
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*/
|
||||
|
||||
extern void convert_to_tag_list(struct tag *tags);
|
||||
|
||||
extern void squash_mem_tags(struct tag *tag);
|
||||
|
|
@ -566,7 +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
|
||||
|
|
|
|||
|
|
@ -27,6 +27,7 @@
|
|||
#include <linux/kallsyms.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/cpu.h>
|
||||
#include <linux/elfcore.h>
|
||||
|
||||
#include <asm/leds.h>
|
||||
#include <asm/processor.h>
|
||||
|
|
@ -83,7 +84,7 @@ EXPORT_SYMBOL(pm_power_off);
|
|||
* This is our default idle handler. We need to disable
|
||||
* interrupts here to ensure we don't miss a wakeup call.
|
||||
*/
|
||||
void default_idle(void)
|
||||
static void default_idle(void)
|
||||
{
|
||||
if (hlt_counter)
|
||||
cpu_relax();
|
||||
|
|
|
|||
|
|
@ -610,15 +610,12 @@ static int ptrace_setfpregs(struct task_struct *tsk, void __user *ufp)
|
|||
static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
|
||||
{
|
||||
struct thread_info *thread = task_thread_info(tsk);
|
||||
void *ptr = &thread->fpstate;
|
||||
|
||||
if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
|
||||
return -ENODATA;
|
||||
iwmmxt_task_disable(thread); /* force it to ram */
|
||||
/* The iWMMXt state is stored doubleword-aligned. */
|
||||
if (((long) ptr) & 4)
|
||||
ptr += 4;
|
||||
return copy_to_user(ufp, ptr, 0x98) ? -EFAULT : 0;
|
||||
return copy_to_user(ufp, &thread->fpstate.iwmmxt, IWMMXT_SIZE)
|
||||
? -EFAULT : 0;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -627,15 +624,12 @@ static int ptrace_getwmmxregs(struct task_struct *tsk, void __user *ufp)
|
|||
static int ptrace_setwmmxregs(struct task_struct *tsk, void __user *ufp)
|
||||
{
|
||||
struct thread_info *thread = task_thread_info(tsk);
|
||||
void *ptr = &thread->fpstate;
|
||||
|
||||
if (!test_ti_thread_flag(thread, TIF_USING_IWMMXT))
|
||||
return -EACCES;
|
||||
iwmmxt_task_release(thread); /* force a reload */
|
||||
/* The iWMMXt state is stored doubleword-aligned. */
|
||||
if (((long) ptr) & 4)
|
||||
ptr += 4;
|
||||
return copy_from_user(ptr, ufp, 0x98) ? -EFAULT : 0;
|
||||
return copy_from_user(&thread->fpstate.iwmmxt, ufp, IWMMXT_SIZE)
|
||||
? -EFAULT : 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
|
@ -36,6 +37,8 @@
|
|||
#include <asm/mach/irq.h>
|
||||
#include <asm/mach/time.h>
|
||||
|
||||
#include "compat.h"
|
||||
|
||||
#ifndef MEM_SIZE
|
||||
#define MEM_SIZE (16*1024*1024)
|
||||
#endif
|
||||
|
|
@ -52,10 +55,7 @@ static int __init fpe_setup(char *line)
|
|||
__setup("fpe=", fpe_setup);
|
||||
#endif
|
||||
|
||||
extern unsigned int mem_fclk_21285;
|
||||
extern void paging_init(struct meminfo *, struct machine_desc *desc);
|
||||
extern void convert_to_tag_list(struct tag *tags);
|
||||
extern void squash_mem_tags(struct tag *tag);
|
||||
extern void reboot_setup(char *str);
|
||||
extern int root_mountflags;
|
||||
extern void _stext, _text, _etext, __data_start, _edata, _end;
|
||||
|
|
@ -771,6 +771,10 @@ 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);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -64,6 +64,7 @@
|
|||
* 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
|
||||
|
|
@ -78,6 +79,7 @@
|
|||
#include <linux/eventpoll.h>
|
||||
#include <linux/sem.h>
|
||||
#include <linux/socket.h>
|
||||
#include <linux/net.h>
|
||||
#include <asm/ipc.h>
|
||||
#include <asm/uaccess.h>
|
||||
|
||||
|
|
@ -408,3 +410,31 @@ asmlinkage long sys_oabi_sendmsg(int fd, struct msghdr __user *msg, unsigned fla
|
|||
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;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -422,12 +422,14 @@ static int timer_dyn_tick_disable(void)
|
|||
void timer_dyn_reprogram(void)
|
||||
{
|
||||
struct dyn_tick_timer *dyn_tick = system_timer->dyn_tick;
|
||||
unsigned long next, seq;
|
||||
|
||||
if (dyn_tick) {
|
||||
write_seqlock(&xtime_lock);
|
||||
if (dyn_tick->state & DYN_TICK_ENABLED)
|
||||
if (dyn_tick && (dyn_tick->state & DYN_TICK_ENABLED)) {
|
||||
next = next_timer_interrupt();
|
||||
do {
|
||||
seq = read_seqbegin(&xtime_lock);
|
||||
dyn_tick->reprogram(next_timer_interrupt() - jiffies);
|
||||
write_sequnlock(&xtime_lock);
|
||||
} while (read_seqretry(&xtime_lock, seq));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -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);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -29,8 +29,8 @@ ENTRY(__aeabi_lmul)
|
|||
|
||||
mul xh, yl, xh
|
||||
mla xh, xl, yh, xh
|
||||
mov ip, xl, asr #16
|
||||
mov yh, yl, asr #16
|
||||
mov ip, xl, lsr #16
|
||||
mov yh, yl, lsr #16
|
||||
bic xl, xl, ip, lsl #16
|
||||
bic yl, yl, yh, lsl #16
|
||||
mla xh, yh, ip, xh
|
||||
|
|
|
|||
|
|
@ -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);
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
|
||||
|
||||
|
|
@ -257,8 +274,18 @@ static void gpio_irq_handler(unsigned irq, struct irqdesc *desc, struct pt_regs
|
|||
gpio = &irq_desc[pin];
|
||||
|
||||
while (isr) {
|
||||
if (isr & 1)
|
||||
gpio->handle(pin, gpio, regs);
|
||||
if (isr & 1) {
|
||||
if (unlikely(gpio->disable_depth)) {
|
||||
/*
|
||||
* The core ARM interrupt handler lazily disables IRQs so
|
||||
* another IRQ must be generated before it actually gets
|
||||
* here to be disabled on the GPIO controller.
|
||||
*/
|
||||
gpio_irq_mask(pin);
|
||||
}
|
||||
else
|
||||
gpio->handle(pin, gpio, regs);
|
||||
}
|
||||
pin++;
|
||||
gpio++;
|
||||
isr >>= 1;
|
||||
|
|
|
|||
|
|
@ -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>
|
||||
|
|
|
|||
|
|
@ -8,11 +8,9 @@ menu "Intel IXP4xx Implementation Options"
|
|||
|
||||
comment "IXP4xx Platforms"
|
||||
|
||||
# This entry is placed on top because otherwise it would have
|
||||
# been shown as a submenu.
|
||||
config MACH_NSLU2
|
||||
bool
|
||||
prompt "NSLU2" if !(MACH_IXDP465 || MACH_IXDPG425 || ARCH_IXDP425 || ARCH_ADI_COYOTE || ARCH_AVILA || ARCH_IXCDP1100 || ARCH_PRPMC1100 || MACH_GTWX5715)
|
||||
prompt "Linksys NSLU2"
|
||||
help
|
||||
Say 'Y' here if you want your kernel to support Linksys's
|
||||
NSLU2 NAS device. For more information on this platform,
|
||||
|
|
|
|||
|
|
@ -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 */
|
||||
|
|
|
|||
|
|
@ -56,6 +56,9 @@ static int __init nas100d_power_init(void)
|
|||
|
||||
static void __exit nas100d_power_exit(void)
|
||||
{
|
||||
if (!(machine_is_nas100d()))
|
||||
return;
|
||||
|
||||
free_irq(NAS100D_RB_IRQ, NULL);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -113,6 +113,9 @@ static void __init nas100d_init(void)
|
|||
{
|
||||
ixp4xx_sys_init();
|
||||
|
||||
/* gpio 14 and 15 are _not_ clocks */
|
||||
*IXP4XX_GPIO_GPCLKR = 0;
|
||||
|
||||
nas100d_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
|
||||
nas100d_flash_resource.end =
|
||||
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
|
||||
|
|
|
|||
|
|
@ -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));
|
||||
|
|
|
|||
|
|
@ -143,6 +143,18 @@ 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();
|
||||
|
|
@ -179,14 +191,11 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
|
|||
local_timer_setup(cpu);
|
||||
|
||||
/*
|
||||
* 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
|
||||
|
|
|
|||
|
|
@ -334,11 +334,17 @@ static struct resource s3c_spi0_resource[] = {
|
|||
|
||||
};
|
||||
|
||||
static u64 s3c_device_spi0_dmamask = 0xffffffffUL;
|
||||
|
||||
struct platform_device s3c_device_spi0 = {
|
||||
.name = "s3c2410-spi",
|
||||
.id = 0,
|
||||
.num_resources = ARRAY_SIZE(s3c_spi0_resource),
|
||||
.resource = s3c_spi0_resource,
|
||||
.dev = {
|
||||
.dma_mask = &s3c_device_spi0_dmamask,
|
||||
.coherent_dma_mask = 0xffffffffUL
|
||||
}
|
||||
};
|
||||
|
||||
EXPORT_SYMBOL(s3c_device_spi0);
|
||||
|
|
@ -359,11 +365,17 @@ static struct resource s3c_spi1_resource[] = {
|
|||
|
||||
};
|
||||
|
||||
static u64 s3c_device_spi1_dmamask = 0xffffffffUL;
|
||||
|
||||
struct platform_device s3c_device_spi1 = {
|
||||
.name = "s3c2410-spi",
|
||||
.id = 1,
|
||||
.num_resources = ARRAY_SIZE(s3c_spi1_resource),
|
||||
.resource = s3c_spi1_resource,
|
||||
.dev = {
|
||||
.dma_mask = &s3c_device_spi1_dmamask,
|
||||
.coherent_dma_mask = 0xffffffffUL
|
||||
}
|
||||
};
|
||||
|
||||
EXPORT_SYMBOL(s3c_device_spi1);
|
||||
|
|
|
|||
|
|
@ -46,10 +46,11 @@
|
|||
#include <asm/irq.h>
|
||||
#include <asm/mach-types.h>
|
||||
|
||||
//#include <asm/debug-ll.h>
|
||||
|
||||
#include <asm/arch/regs-serial.h>
|
||||
#include <asm/arch/regs-lcd.h>
|
||||
|
||||
#include <asm/arch/h1940-latch.h>
|
||||
#include <asm/arch/fb.h>
|
||||
|
||||
#include <linux/serial_core.h>
|
||||
|
|
@ -59,7 +60,12 @@
|
|||
#include "cpu.h"
|
||||
|
||||
static struct map_desc h1940_iodesc[] __initdata = {
|
||||
/* nothing here yet */
|
||||
[0] = {
|
||||
.virtual = (unsigned long)H1940_LATCH,
|
||||
.pfn = __phys_to_pfn(H1940_PA_LATCH),
|
||||
.length = SZ_16K,
|
||||
.type = MT_DEVICE
|
||||
},
|
||||
};
|
||||
|
||||
#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
|
||||
|
|
@ -92,6 +98,25 @@ static struct s3c2410_uartcfg h1940_uartcfgs[] = {
|
|||
}
|
||||
};
|
||||
|
||||
/* Board control latch control */
|
||||
|
||||
static unsigned int latch_state = H1940_LATCH_DEFAULT;
|
||||
|
||||
void h1940_latch_control(unsigned int clear, unsigned int set)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
latch_state &= ~clear;
|
||||
latch_state |= set;
|
||||
|
||||
__raw_writel(latch_state, H1940_LATCH);
|
||||
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL_GPL(h1940_latch_control);
|
||||
|
||||
|
||||
/**
|
||||
|
|
|
|||
31
arch/arm/mach-s3c2410/s3c2400.h
Normal file
31
arch/arm/mach-s3c2410/s3c2400.h
Normal file
|
|
@ -0,0 +1,31 @@
|
|||
/* arch/arm/mach-s3c2410/s3c2400.h
|
||||
*
|
||||
* Copyright (c) 2004 Simtec Electronics
|
||||
* Ben Dooks <ben@simtec.co.uk>
|
||||
*
|
||||
* Header file for S3C2400 cpu support
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* Modifications:
|
||||
* 09-Fev-2006 LCVR First version, based on s3c2410.h
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_CPU_S3C2400
|
||||
|
||||
extern int s3c2400_init(void);
|
||||
|
||||
extern void s3c2400_map_io(struct map_desc *mach_desc, int size);
|
||||
|
||||
extern void s3c2400_init_uarts(struct s3c2410_uartcfg *cfg, int no);
|
||||
|
||||
extern void s3c2400_init_clocks(int xtal);
|
||||
|
||||
#else
|
||||
#define s3c2400_init_clocks NULL
|
||||
#define s3c2400_init_uarts NULL
|
||||
#define s3c2400_map_io NULL
|
||||
#define s3c2400_init NULL
|
||||
#endif
|
||||
|
|
@ -240,6 +240,14 @@ int __init pci_versatile_setup(int nr, struct pci_sys_data *sys)
|
|||
int i;
|
||||
int myslot = -1;
|
||||
unsigned long val;
|
||||
void __iomem *local_pci_cfg_base;
|
||||
|
||||
val = __raw_readl(SYS_PCICTL);
|
||||
if (!(val & 1)) {
|
||||
printk("Not plugged into PCI backplane!\n");
|
||||
ret = -EIO;
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (nr == 0) {
|
||||
sys->mem_offset = 0;
|
||||
|
|
@ -253,48 +261,45 @@ int __init pci_versatile_setup(int nr, struct pci_sys_data *sys)
|
|||
goto out;
|
||||
}
|
||||
|
||||
__raw_writel(VERSATILE_PCI_MEM_BASE0 >> 28,PCI_IMAP0);
|
||||
__raw_writel(VERSATILE_PCI_MEM_BASE1 >> 28,PCI_IMAP1);
|
||||
__raw_writel(VERSATILE_PCI_MEM_BASE2 >> 28,PCI_IMAP2);
|
||||
|
||||
__raw_writel(1, SYS_PCICTL);
|
||||
|
||||
val = __raw_readl(SYS_PCICTL);
|
||||
if (!(val & 1)) {
|
||||
printk("Not plugged into PCI backplane!\n");
|
||||
ret = -EIO;
|
||||
goto out;
|
||||
}
|
||||
|
||||
/*
|
||||
* We need to discover the PCI core first to configure itself
|
||||
* before the main PCI probing is performed
|
||||
*/
|
||||
for (i=0; i<32; i++) {
|
||||
for (i=0; i<32; i++)
|
||||
if ((__raw_readl(VERSATILE_PCI_VIRT_BASE+(i<<11)+DEVICE_ID_OFFSET) == VP_PCI_DEVICE_ID) &&
|
||||
(__raw_readl(VERSATILE_PCI_VIRT_BASE+(i<<11)+CLASS_ID_OFFSET) == VP_PCI_CLASS_ID)) {
|
||||
myslot = i;
|
||||
|
||||
__raw_writel(myslot, PCI_SELFID);
|
||||
val = __raw_readl(VERSATILE_PCI_CFG_VIRT_BASE+(myslot<<11)+CSR_OFFSET);
|
||||
val |= (1<<2);
|
||||
__raw_writel(val, VERSATILE_PCI_CFG_VIRT_BASE+(myslot<<11)+CSR_OFFSET);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (myslot == -1) {
|
||||
printk("Cannot find PCI core!\n");
|
||||
ret = -EIO;
|
||||
} else {
|
||||
printk("PCI core found (slot %d)\n",myslot);
|
||||
/* Do not to map Versatile FPGA PCI device
|
||||
into memory space as we are short of
|
||||
mappable memory */
|
||||
pci_slot_ignore |= (1 << myslot);
|
||||
ret = 1;
|
||||
goto out;
|
||||
}
|
||||
|
||||
printk("PCI core found (slot %d)\n",myslot);
|
||||
|
||||
__raw_writel(myslot, PCI_SELFID);
|
||||
local_pci_cfg_base = (void *) VERSATILE_PCI_CFG_VIRT_BASE + (myslot << 11);
|
||||
|
||||
val = __raw_readl(local_pci_cfg_base + CSR_OFFSET);
|
||||
val |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE;
|
||||
__raw_writel(val, local_pci_cfg_base + CSR_OFFSET);
|
||||
|
||||
/*
|
||||
* Configure the PCI inbound memory windows to be 1:1 mapped to SDRAM
|
||||
*/
|
||||
__raw_writel(PHYS_OFFSET, local_pci_cfg_base + PCI_BASE_ADDRESS_0);
|
||||
__raw_writel(PHYS_OFFSET, local_pci_cfg_base + PCI_BASE_ADDRESS_1);
|
||||
__raw_writel(PHYS_OFFSET, local_pci_cfg_base + PCI_BASE_ADDRESS_2);
|
||||
|
||||
/*
|
||||
* Do not to map Versatile FPGA PCI device into memory space
|
||||
*/
|
||||
pci_slot_ignore |= (1 << myslot);
|
||||
ret = 1;
|
||||
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
|
@ -305,18 +310,18 @@ struct pci_bus *pci_versatile_scan_bus(int nr, struct pci_sys_data *sys)
|
|||
return pci_scan_bus(sys->busnr, &pci_versatile_ops, sys);
|
||||
}
|
||||
|
||||
/*
|
||||
* V3_LB_BASE? - local bus address
|
||||
* V3_LB_MAP? - pci bus address
|
||||
*/
|
||||
void __init pci_versatile_preinit(void)
|
||||
{
|
||||
}
|
||||
__raw_writel(VERSATILE_PCI_MEM_BASE0 >> 28, PCI_IMAP0);
|
||||
__raw_writel(VERSATILE_PCI_MEM_BASE1 >> 28, PCI_IMAP1);
|
||||
__raw_writel(VERSATILE_PCI_MEM_BASE2 >> 28, PCI_IMAP2);
|
||||
|
||||
void __init pci_versatile_postinit(void)
|
||||
{
|
||||
}
|
||||
__raw_writel(PHYS_OFFSET >> 28, PCI_SMAP0);
|
||||
__raw_writel(PHYS_OFFSET >> 28, PCI_SMAP1);
|
||||
__raw_writel(PHYS_OFFSET >> 28, PCI_SMAP2);
|
||||
|
||||
__raw_writel(1, SYS_PCICTL);
|
||||
}
|
||||
|
||||
/*
|
||||
* map the specified device/slot/pin to an IRQ. Different backplanes may need to modify this.
|
||||
|
|
@ -326,16 +331,15 @@ static int __init versatile_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
|
|||
int irq;
|
||||
int devslot = PCI_SLOT(dev->devfn);
|
||||
|
||||
/* slot, pin, irq
|
||||
24 1 27
|
||||
25 1 28 untested
|
||||
26 1 29
|
||||
27 1 30 untested
|
||||
*/
|
||||
/* slot, pin, irq
|
||||
* 24 1 27
|
||||
* 25 1 28
|
||||
* 26 1 29
|
||||
* 27 1 30
|
||||
*/
|
||||
irq = 27 + ((slot + pin - 1) & 3);
|
||||
|
||||
irq = 27 + ((slot + pin + 2) % 3); /* Fudged */
|
||||
|
||||
printk("map irq: slot %d, pin %d, devslot %d, irq: %d\n",slot,pin,devslot,irq);
|
||||
printk("PCI map irq: slot %d, pin %d, devslot %d, irq: %d\n",slot,pin,devslot,irq);
|
||||
|
||||
return irq;
|
||||
}
|
||||
|
|
@ -347,7 +351,6 @@ static struct hw_pci versatile_pci __initdata = {
|
|||
.setup = pci_versatile_setup,
|
||||
.scan = pci_versatile_scan_bus,
|
||||
.preinit = pci_versatile_preinit,
|
||||
.postinit = pci_versatile_postinit,
|
||||
};
|
||||
|
||||
static int __init versatile_pci_init(void)
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@
|
|||
*/
|
||||
.align 5
|
||||
ENTRY(v6_early_abort)
|
||||
#ifdef CONFIG_CPU_MPCORE
|
||||
#ifdef CONFIG_CPU_32v6K
|
||||
clrex
|
||||
#else
|
||||
strex r0, r1, [sp] @ Clear the exclusive monitor
|
||||
|
|
|
|||
|
|
@ -96,15 +96,16 @@ ENTRY(v6_coherent_user_range)
|
|||
#ifdef HARVARD_CACHE
|
||||
bic r0, r0, #CACHE_LINE_SIZE - 1
|
||||
1: mcr p15, 0, r0, c7, c10, 1 @ clean D line
|
||||
mcr p15, 0, r0, c7, c5, 1 @ invalidate I line
|
||||
add r0, r0, #CACHE_LINE_SIZE
|
||||
cmp r0, r1
|
||||
blo 1b
|
||||
#endif
|
||||
mcr p15, 0, r0, c7, c5, 6 @ invalidate BTB
|
||||
#ifdef HARVARD_CACHE
|
||||
mov r0, #0
|
||||
#ifdef HARVARD_CACHE
|
||||
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
|
||||
mcr p15, 0, r0, c7, c5, 0 @ I+BTB cache invalidate
|
||||
#else
|
||||
mcr p15, 0, r0, c7, c5, 6 @ invalidate BTB
|
||||
#endif
|
||||
mov pc, lr
|
||||
|
||||
|
|
|
|||
|
|
@ -24,14 +24,16 @@
|
|||
static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr)
|
||||
{
|
||||
unsigned long to = ALIAS_FLUSH_START + (CACHE_COLOUR(vaddr) << PAGE_SHIFT);
|
||||
const int zero = 0;
|
||||
|
||||
set_pte(TOP_PTE(to), pfn_pte(pfn, PAGE_KERNEL));
|
||||
flush_tlb_kernel_page(to);
|
||||
|
||||
asm( "mcrr p15, 0, %1, %0, c14\n"
|
||||
" mcrr p15, 0, %1, %0, c5\n"
|
||||
" mcr p15, 0, %2, c7, c10, 4\n"
|
||||
" mcr p15, 0, %2, c7, c5, 0\n"
|
||||
:
|
||||
: "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES)
|
||||
: "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES), "r" (zero)
|
||||
: "cc");
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -80,6 +80,7 @@ ENTRY(v6wbi_flush_kern_tlb_range)
|
|||
add r0, r0, #PAGE_SZ
|
||||
cmp r0, r1
|
||||
blo 1b
|
||||
mcr p15, 0, r2, c7, c10, 4 @ data synchronization barrier
|
||||
mov pc, lr
|
||||
|
||||
.section ".text.init", #alloc, #execinstr
|
||||
|
|
|
|||
|
|
@ -38,7 +38,6 @@
|
|||
#include <linux/pm.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/proc_fs.h>
|
||||
#include <linux/pm.h>
|
||||
#include <linux/interrupt.h>
|
||||
|
||||
#include <asm/io.h>
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@
|
|||
#
|
||||
# http://www.arm.linux.org.uk/developer/machines/?action=new
|
||||
#
|
||||
# Last update: Mon Jan 9 12:56:42 2006
|
||||
# Last update: Mon Feb 20 10:18:02 2006
|
||||
#
|
||||
# machine_is_xxx CONFIG_xxxx MACH_TYPE_xxx number
|
||||
#
|
||||
|
|
@ -904,7 +904,7 @@ wg302v2 MACH_WG302V2 WG302V2 890
|
|||
eb42x MACH_EB42X EB42X 891
|
||||
iq331es MACH_IQ331ES IQ331ES 892
|
||||
cosydsp MACH_COSYDSP COSYDSP 893
|
||||
uplat7d MACH_UPLAT7D UPLAT7D 894
|
||||
uplat7d_proto MACH_UPLAT7D UPLAT7D 894
|
||||
ptdavinci MACH_PTDAVINCI PTDAVINCI 895
|
||||
mbus MACH_MBUS MBUS 896
|
||||
nadia2vb MACH_NADIA2VB NADIA2VB 897
|
||||
|
|
@ -938,3 +938,34 @@ auckland MACH_AUCKLAND AUCKLAND 924
|
|||
ak3220m MACH_AK3320M AK3320M 925
|
||||
duramax MACH_DURAMAX DURAMAX 926
|
||||
n35 MACH_N35 N35 927
|
||||
pronghorn MACH_PRONGHORN PRONGHORN 928
|
||||
fundy MACH_FUNDY FUNDY 929
|
||||
logicpd_pxa270 MACH_LOGICPD_PXA270 LOGICPD_PXA270 930
|
||||
cpu777 MACH_CPU777 CPU777 931
|
||||
simicon9201 MACH_SIMICON9201 SIMICON9201 932
|
||||
leap2_hpm MACH_LEAP2_HPM LEAP2_HPM 933
|
||||
cm922txa10 MACH_CM922TXA10 CM922TXA10 934
|
||||
sandgate MACH_PXA PXA 935
|
||||
sandgate2 MACH_SANDGATE2 SANDGATE2 936
|
||||
sandgate2g MACH_SANDGATE2G SANDGATE2G 937
|
||||
sandgate2p MACH_SANDGATE2P SANDGATE2P 938
|
||||
fred_jack MACH_FRED_JACK FRED_JACK 939
|
||||
ttg_color1 MACH_TTG_COLOR1 TTG_COLOR1 940
|
||||
nxeb500hmi MACH_NXEB500HMI NXEB500HMI 941
|
||||
netdcu8 MACH_NETDCU8 NETDCU8 942
|
||||
ml675050_cpu_boa MACH_ML675050_CPU_BOA ML675050_CPU_BOA 943
|
||||
ng_fvx538 MACH_NG_FVX538 NG_FVX538 944
|
||||
ng_fvs338 MACH_NG_FVS338 NG_FVS338 945
|
||||
pnx4103 MACH_PNX4103 PNX4103 946
|
||||
hesdb MACH_HESDB HESDB 947
|
||||
xsilo MACH_XSILO XSILO 948
|
||||
espresso MACH_ESPRESSO ESPRESSO 949
|
||||
emlc MACH_EMLC EMLC 950
|
||||
sisteron MACH_SISTERON SISTERON 951
|
||||
rx1950 MACH_RX1950 RX1950 952
|
||||
tsc_venus MACH_TSC_VENUS TSC_VENUS 953
|
||||
ds101j MACH_DS101J DS101J 954
|
||||
mxc300_30ads MACH_MXC30030ADS MXC30030ADS 955
|
||||
fujitsu_wimaxsoc MACH_FUJITSU_WIMAXSOC FUJITSU_WIMAXSOC 956
|
||||
dualpcmodem MACH_DUALPCMODEM DUALPCMODEM 957
|
||||
gesbc9312 MACH_GESBC9312 GESBC9312 958
|
||||
|
|
|
|||
|
|
@ -25,6 +25,10 @@ config GENERIC_HARDIRQS
|
|||
bool
|
||||
default n
|
||||
|
||||
config TIME_LOW_RES
|
||||
bool
|
||||
default y
|
||||
|
||||
mainmenu "Fujitsu FR-V Kernel Configuration"
|
||||
|
||||
source "init/Kconfig"
|
||||
|
|
|
|||
|
|
@ -81,7 +81,7 @@ endif
|
|||
# - reserve CC3 for use with atomic ops
|
||||
# - all the extra registers are dealt with only at context switch time
|
||||
CFLAGS += -mno-fdpic -mgpr-32 -msoft-float -mno-media
|
||||
CFLAGS += -ffixed-fcc3 -ffixed-cc3 -ffixed-gr15
|
||||
CFLAGS += -ffixed-fcc3 -ffixed-cc3 -ffixed-gr15 -ffixed-icc2
|
||||
AFLAGS += -mno-fdpic
|
||||
ASFLAGS += -mno-fdpic
|
||||
|
||||
|
|
|
|||
|
|
@ -200,12 +200,20 @@ __break_step:
|
|||
movsg bpcsr,gr2
|
||||
sethi.p %hi(__entry_kernel_external_interrupt),gr3
|
||||
setlo %lo(__entry_kernel_external_interrupt),gr3
|
||||
subcc gr2,gr3,gr0,icc0
|
||||
subcc.p gr2,gr3,gr0,icc0
|
||||
sethi %hi(__entry_uspace_external_interrupt),gr3
|
||||
setlo.p %lo(__entry_uspace_external_interrupt),gr3
|
||||
beq icc0,#2,__break_step_kernel_external_interrupt
|
||||
sethi.p %hi(__entry_uspace_external_interrupt),gr3
|
||||
setlo %lo(__entry_uspace_external_interrupt),gr3
|
||||
subcc gr2,gr3,gr0,icc0
|
||||
subcc.p gr2,gr3,gr0,icc0
|
||||
sethi %hi(__entry_kernel_external_interrupt_virtually_disabled),gr3
|
||||
setlo.p %lo(__entry_kernel_external_interrupt_virtually_disabled),gr3
|
||||
beq icc0,#2,__break_step_uspace_external_interrupt
|
||||
subcc.p gr2,gr3,gr0,icc0
|
||||
sethi %hi(__entry_kernel_external_interrupt_virtual_reenable),gr3
|
||||
setlo.p %lo(__entry_kernel_external_interrupt_virtual_reenable),gr3
|
||||
beq icc0,#2,__break_step_kernel_external_interrupt_virtually_disabled
|
||||
subcc gr2,gr3,gr0,icc0
|
||||
beq icc0,#2,__break_step_kernel_external_interrupt_virtual_reenable
|
||||
|
||||
LEDS 0x2007,gr2
|
||||
|
||||
|
|
@ -254,6 +262,9 @@ __break_step_kernel_softprog_interrupt:
|
|||
# step through an external interrupt from kernel mode
|
||||
.globl __break_step_kernel_external_interrupt
|
||||
__break_step_kernel_external_interrupt:
|
||||
# deal with virtual interrupt disablement
|
||||
beq icc2,#0,__break_step_kernel_external_interrupt_virtually_disabled
|
||||
|
||||
sethi.p %hi(__entry_kernel_external_interrupt_reentry),gr3
|
||||
setlo %lo(__entry_kernel_external_interrupt_reentry),gr3
|
||||
|
||||
|
|
@ -294,6 +305,64 @@ __break_return_as_kernel_prologue:
|
|||
#endif
|
||||
rett #1
|
||||
|
||||
# we single-stepped into an interrupt handler whilst interrupts were merely virtually disabled
|
||||
# need to really disable interrupts, set flag, fix up and return
|
||||
__break_step_kernel_external_interrupt_virtually_disabled:
|
||||
movsg psr,gr2
|
||||
andi gr2,#~PSR_PIL,gr2
|
||||
ori gr2,#PSR_PIL_14,gr2 /* debugging interrupts only */
|
||||
movgs gr2,psr
|
||||
|
||||
ldi @(gr31,#REG_CCR),gr3
|
||||
movgs gr3,ccr
|
||||
subcc.p gr0,gr0,gr0,icc2 /* leave Z set, clear C */
|
||||
|
||||
# exceptions must've been enabled and we must've been in supervisor mode
|
||||
setlos BPSR_BET|BPSR_BS,gr3
|
||||
movgs gr3,bpsr
|
||||
|
||||
# return to where the interrupt happened
|
||||
movsg pcsr,gr2
|
||||
movgs gr2,bpcsr
|
||||
|
||||
lddi.p @(gr31,#REG_GR(2)),gr2
|
||||
|
||||
xor gr31,gr31,gr31
|
||||
movgs gr0,brr
|
||||
#ifdef CONFIG_MMU
|
||||
movsg scr3,gr31
|
||||
#endif
|
||||
rett #1
|
||||
|
||||
# we stepped through into the virtual interrupt reenablement trap
|
||||
#
|
||||
# we also want to single step anyway, but after fixing up so that we get an event on the
|
||||
# instruction after the broken-into exception returns
|
||||
.globl __break_step_kernel_external_interrupt_virtual_reenable
|
||||
__break_step_kernel_external_interrupt_virtual_reenable:
|
||||
movsg psr,gr2
|
||||
andi gr2,#~PSR_PIL,gr2
|
||||
movgs gr2,psr
|
||||
|
||||
ldi @(gr31,#REG_CCR),gr3
|
||||
movgs gr3,ccr
|
||||
subicc gr0,#1,gr0,icc2 /* clear Z, set C */
|
||||
|
||||
# save the adjusted ICC2
|
||||
movsg ccr,gr3
|
||||
sti gr3,@(gr31,#REG_CCR)
|
||||
|
||||
# exceptions must've been enabled and we must've been in supervisor mode
|
||||
setlos BPSR_BET|BPSR_BS,gr3
|
||||
movgs gr3,bpsr
|
||||
|
||||
# return to where the trap happened
|
||||
movsg pcsr,gr2
|
||||
movgs gr2,bpcsr
|
||||
|
||||
# and then process the single step
|
||||
bra __break_continue
|
||||
|
||||
# step through an internal exception from uspace mode
|
||||
.globl __break_step_uspace_softprog_interrupt
|
||||
__break_step_uspace_softprog_interrupt:
|
||||
|
|
|
|||
|
|
@ -116,6 +116,8 @@ __break_kerneltrap_fixup_table:
|
|||
.long __break_step_uspace_external_interrupt
|
||||
.section .trap.kernel
|
||||
.org \tbr_tt
|
||||
# deal with virtual interrupt disablement
|
||||
beq icc2,#0,__entry_kernel_external_interrupt_virtually_disabled
|
||||
bra __entry_kernel_external_interrupt
|
||||
.section .trap.fixup.kernel
|
||||
.org \tbr_tt >> 2
|
||||
|
|
@ -259,25 +261,52 @@ __trap_fixup_kernel_data_tlb_miss:
|
|||
.org TBR_TT_TRAP0
|
||||
.rept 127
|
||||
bra __entry_uspace_softprog_interrupt
|
||||
bra __break_step_uspace_softprog_interrupt
|
||||
.long 0,0
|
||||
.long 0,0,0
|
||||
.endr
|
||||
.org TBR_TT_BREAK
|
||||
bra __entry_break
|
||||
.long 0,0,0
|
||||
|
||||
.section .trap.fixup.user
|
||||
.org TBR_TT_TRAP0 >> 2
|
||||
.rept 127
|
||||
.long __break_step_uspace_softprog_interrupt
|
||||
.endr
|
||||
.org TBR_TT_BREAK >> 2
|
||||
.long 0
|
||||
|
||||
# miscellaneous kernel mode entry points
|
||||
.section .trap.kernel
|
||||
.org TBR_TT_TRAP0
|
||||
.rept 127
|
||||
bra __entry_kernel_softprog_interrupt
|
||||
bra __break_step_kernel_softprog_interrupt
|
||||
.long 0,0
|
||||
.org TBR_TT_TRAP1
|
||||
bra __entry_kernel_softprog_interrupt
|
||||
|
||||
# trap #2 in kernel - reenable interrupts
|
||||
.org TBR_TT_TRAP2
|
||||
bra __entry_kernel_external_interrupt_virtual_reenable
|
||||
|
||||
# miscellaneous kernel traps
|
||||
.org TBR_TT_TRAP3
|
||||
.rept 124
|
||||
bra __entry_kernel_softprog_interrupt
|
||||
.long 0,0,0
|
||||
.endr
|
||||
.org TBR_TT_BREAK
|
||||
bra __entry_break
|
||||
.long 0,0,0
|
||||
|
||||
.section .trap.fixup.kernel
|
||||
.org TBR_TT_TRAP0 >> 2
|
||||
.long __break_step_kernel_softprog_interrupt
|
||||
.long __break_step_kernel_softprog_interrupt
|
||||
.long __break_step_kernel_external_interrupt_virtual_reenable
|
||||
.rept 124
|
||||
.long __break_step_kernel_softprog_interrupt
|
||||
.endr
|
||||
.org TBR_TT_BREAK >> 2
|
||||
.long 0
|
||||
|
||||
# miscellaneous debug mode entry points
|
||||
.section .trap.break
|
||||
.org TBR_TT_BREAK
|
||||
|
|
|
|||
|
|
@ -141,7 +141,10 @@ __entry_uspace_external_interrupt_reentry:
|
|||
|
||||
movsg gner0,gr4
|
||||
movsg gner1,gr5
|
||||
stdi gr4,@(gr28,#REG_GNER0)
|
||||
stdi.p gr4,@(gr28,#REG_GNER0)
|
||||
|
||||
# interrupts start off fully disabled in the interrupt handler
|
||||
subcc gr0,gr0,gr0,icc2 /* set Z and clear C */
|
||||
|
||||
# set up kernel global registers
|
||||
sethi.p %hi(__kernel_current_task),gr5
|
||||
|
|
@ -193,9 +196,8 @@ __entry_uspace_external_interrupt_reentry:
|
|||
.type __entry_kernel_external_interrupt,@function
|
||||
__entry_kernel_external_interrupt:
|
||||
LEDS 0x6210
|
||||
|
||||
sub sp,gr15,gr31
|
||||
LEDS32
|
||||
// sub sp,gr15,gr31
|
||||
// LEDS32
|
||||
|
||||
# set up the stack pointer
|
||||
or.p sp,gr0,gr30
|
||||
|
|
@ -231,7 +233,10 @@ __entry_kernel_external_interrupt_reentry:
|
|||
stdi gr24,@(gr28,#REG_GR(24))
|
||||
stdi gr26,@(gr28,#REG_GR(26))
|
||||
sti gr29,@(gr28,#REG_GR(29))
|
||||
stdi gr30,@(gr28,#REG_GR(30))
|
||||
stdi.p gr30,@(gr28,#REG_GR(30))
|
||||
|
||||
# note virtual interrupts will be fully enabled upon return
|
||||
subicc gr0,#1,gr0,icc2 /* clear Z, set C */
|
||||
|
||||
movsg tbr ,gr20
|
||||
movsg psr ,gr22
|
||||
|
|
@ -267,7 +272,10 @@ __entry_kernel_external_interrupt_reentry:
|
|||
|
||||
movsg gner0,gr4
|
||||
movsg gner1,gr5
|
||||
stdi gr4,@(gr28,#REG_GNER0)
|
||||
stdi.p gr4,@(gr28,#REG_GNER0)
|
||||
|
||||
# interrupts start off fully disabled in the interrupt handler
|
||||
subcc gr0,gr0,gr0,icc2 /* set Z and clear C */
|
||||
|
||||
# set the return address
|
||||
sethi.p %hi(__entry_return_from_kernel_interrupt),gr4
|
||||
|
|
@ -291,6 +299,45 @@ __entry_kernel_external_interrupt_reentry:
|
|||
|
||||
.size __entry_kernel_external_interrupt,.-__entry_kernel_external_interrupt
|
||||
|
||||
###############################################################################
|
||||
#
|
||||
# deal with interrupts that were actually virtually disabled
|
||||
# - we need to really disable them, flag the fact and return immediately
|
||||
# - if you change this, you must alter break.S also
|
||||
#
|
||||
###############################################################################
|
||||
.balign L1_CACHE_BYTES
|
||||
.globl __entry_kernel_external_interrupt_virtually_disabled
|
||||
.type __entry_kernel_external_interrupt_virtually_disabled,@function
|
||||
__entry_kernel_external_interrupt_virtually_disabled:
|
||||
movsg psr,gr30
|
||||
andi gr30,#~PSR_PIL,gr30
|
||||
ori gr30,#PSR_PIL_14,gr30 ; debugging interrupts only
|
||||
movgs gr30,psr
|
||||
subcc gr0,gr0,gr0,icc2 ; leave Z set, clear C
|
||||
rett #0
|
||||
|
||||
.size __entry_kernel_external_interrupt_virtually_disabled,.-__entry_kernel_external_interrupt_virtually_disabled
|
||||
|
||||
###############################################################################
|
||||
#
|
||||
# deal with re-enablement of interrupts that were pending when virtually re-enabled
|
||||
# - set ICC2.C, re-enable the real interrupts and return
|
||||
# - we can clear ICC2.Z because we shouldn't be here if it's not 0 [due to TIHI]
|
||||
# - if you change this, you must alter break.S also
|
||||
#
|
||||
###############################################################################
|
||||
.balign L1_CACHE_BYTES
|
||||
.globl __entry_kernel_external_interrupt_virtual_reenable
|
||||
.type __entry_kernel_external_interrupt_virtual_reenable,@function
|
||||
__entry_kernel_external_interrupt_virtual_reenable:
|
||||
movsg psr,gr30
|
||||
andi gr30,#~PSR_PIL,gr30 ; re-enable interrupts
|
||||
movgs gr30,psr
|
||||
subicc gr0,#1,gr0,icc2 ; clear Z, set C
|
||||
rett #0
|
||||
|
||||
.size __entry_kernel_external_interrupt_virtual_reenable,.-__entry_kernel_external_interrupt_virtual_reenable
|
||||
|
||||
###############################################################################
|
||||
#
|
||||
|
|
@ -335,6 +382,7 @@ __entry_uspace_softprog_interrupt_reentry:
|
|||
|
||||
sethi.p %hi(__entry_return_from_user_exception),gr23
|
||||
setlo %lo(__entry_return_from_user_exception),gr23
|
||||
|
||||
bra __entry_common
|
||||
|
||||
.size __entry_uspace_softprog_interrupt,.-__entry_uspace_softprog_interrupt
|
||||
|
|
@ -495,7 +543,10 @@ __entry_common:
|
|||
|
||||
movsg gner0,gr4
|
||||
movsg gner1,gr5
|
||||
stdi gr4,@(gr28,#REG_GNER0)
|
||||
stdi.p gr4,@(gr28,#REG_GNER0)
|
||||
|
||||
# set up virtual interrupt disablement
|
||||
subicc gr0,#1,gr0,icc2 /* clear Z flag, set C flag */
|
||||
|
||||
# set up kernel global registers
|
||||
sethi.p %hi(__kernel_current_task),gr5
|
||||
|
|
@ -1418,11 +1469,27 @@ sys_call_table:
|
|||
.long sys_add_key
|
||||
.long sys_request_key
|
||||
.long sys_keyctl
|
||||
.long sys_ni_syscall // sys_vperfctr_open
|
||||
.long sys_ni_syscall // sys_vperfctr_control /* 290 */
|
||||
.long sys_ni_syscall // sys_vperfctr_unlink
|
||||
.long sys_ni_syscall // sys_vperfctr_iresume
|
||||
.long sys_ni_syscall // sys_vperfctr_read
|
||||
.long sys_ioprio_set
|
||||
.long sys_ioprio_get /* 290 */
|
||||
.long sys_inotify_init
|
||||
.long sys_inotify_add_watch
|
||||
.long sys_inotify_rm_watch
|
||||
.long sys_migrate_pages
|
||||
.long sys_openat /* 295 */
|
||||
.long sys_mkdirat
|
||||
.long sys_mknodat
|
||||
.long sys_fchownat
|
||||
.long sys_futimesat
|
||||
.long sys_newfstatat /* 300 */
|
||||
.long sys_unlinkat
|
||||
.long sys_renameat
|
||||
.long sys_linkat
|
||||
.long sys_symlinkat
|
||||
.long sys_readlinkat /* 305 */
|
||||
.long sys_fchmodat
|
||||
.long sys_faccessat
|
||||
.long sys_pselect6
|
||||
.long sys_ppoll
|
||||
|
||||
|
||||
syscall_table_size = (. - sys_call_table)
|
||||
|
|
|
|||
|
|
@ -513,6 +513,9 @@ __head_mmu_enabled:
|
|||
movgs gr0,ccr
|
||||
movgs gr0,cccr
|
||||
|
||||
# initialise the virtual interrupt handling
|
||||
subcc gr0,gr0,gr0,icc2 /* set Z, clear C */
|
||||
|
||||
#ifdef CONFIG_MMU
|
||||
movgs gr3,scr2
|
||||
movgs gr3,scr3
|
||||
|
|
|
|||
|
|
@ -287,18 +287,11 @@ asmlinkage void do_IRQ(void)
|
|||
struct irq_source *source;
|
||||
int level, cpu;
|
||||
|
||||
irq_enter();
|
||||
|
||||
level = (__frame->tbr >> 4) & 0xf;
|
||||
cpu = smp_processor_id();
|
||||
|
||||
#if 0
|
||||
{
|
||||
static u32 irqcount;
|
||||
*(volatile u32 *) 0xe1200004 = ~((irqcount++ << 8) | level);
|
||||
*(volatile u16 *) 0xffc00100 = (u16) ~0x9999;
|
||||
mb();
|
||||
}
|
||||
#endif
|
||||
|
||||
if ((unsigned long) __frame - (unsigned long) (current + 1) < 512)
|
||||
BUG();
|
||||
|
||||
|
|
@ -308,40 +301,12 @@ asmlinkage void do_IRQ(void)
|
|||
|
||||
kstat_this_cpu.irqs[level]++;
|
||||
|
||||
irq_enter();
|
||||
|
||||
for (source = frv_irq_levels[level].sources; source; source = source->next)
|
||||
source->doirq(source);
|
||||
|
||||
irq_exit();
|
||||
|
||||
__clr_MASK(level);
|
||||
|
||||
/* only process softirqs if we didn't interrupt another interrupt handler */
|
||||
if ((__frame->psr & PSR_PIL) == PSR_PIL_0)
|
||||
if (local_softirq_pending())
|
||||
do_softirq();
|
||||
|
||||
#ifdef CONFIG_PREEMPT
|
||||
local_irq_disable();
|
||||
while (--current->preempt_count == 0) {
|
||||
if (!(__frame->psr & PSR_S) ||
|
||||
current->need_resched == 0 ||
|
||||
in_interrupt())
|
||||
break;
|
||||
current->preempt_count++;
|
||||
local_irq_enable();
|
||||
preempt_schedule();
|
||||
local_irq_disable();
|
||||
}
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
{
|
||||
*(volatile u16 *) 0xffc00100 = (u16) ~0x6666;
|
||||
mb();
|
||||
}
|
||||
#endif
|
||||
irq_exit();
|
||||
|
||||
} /* end do_IRQ() */
|
||||
|
||||
|
|
|
|||
|
|
@ -43,15 +43,6 @@ void iounmap(void *addr)
|
|||
{
|
||||
}
|
||||
|
||||
/*
|
||||
* __iounmap unmaps nearly everything, so be careful
|
||||
* it doesn't free currently pointer/page tables anymore but it
|
||||
* wans't used anyway and might be added later.
|
||||
*/
|
||||
void __iounmap(void *addr, unsigned long size)
|
||||
{
|
||||
}
|
||||
|
||||
/*
|
||||
* Set new cache mode for some kernel address space.
|
||||
* The caller must push data for that range itself, if such data may already
|
||||
|
|
|
|||
|
|
@ -33,6 +33,10 @@ config GENERIC_CALIBRATE_DELAY
|
|||
bool
|
||||
default y
|
||||
|
||||
config TIME_LOW_RES
|
||||
bool
|
||||
default y
|
||||
|
||||
config ISA
|
||||
bool
|
||||
default y
|
||||
|
|
|
|||
|
|
@ -169,7 +169,7 @@ endif
|
|||
|
||||
config CPU_H8300H
|
||||
bool
|
||||
depends on (H8002 || H83007 || H83048 || H83068)
|
||||
depends on (H83002 || H83007 || H83048 || H83068)
|
||||
default y
|
||||
|
||||
config CPU_H8S
|
||||
|
|
|
|||
|
|
@ -34,7 +34,7 @@ config GDB_DEBUG
|
|||
help
|
||||
gdb stub exception support
|
||||
|
||||
config CONFIG_SH_STANDARD_BIOS
|
||||
config SH_STANDARD_BIOS
|
||||
bool "Use gdb protocol serial console"
|
||||
depends on (!H8300H_SIM && !H8S_SIM)
|
||||
help
|
||||
|
|
|
|||
|
|
@ -328,7 +328,7 @@ CONFIG_FULLDEBUG=y
|
|||
CONFIG_NO_KERNEL_MSG=y
|
||||
# CONFIG_SYSCALL_PRINT is not set
|
||||
# CONFIG_GDB_DEBUG is not set
|
||||
# CONFIG_CONFIG_SH_STANDARD_BIOS is not set
|
||||
# CONFIG_SH_STANDARD_BIOS is not set
|
||||
# CONFIG_DEFAULT_CMDLINE is not set
|
||||
# CONFIG_BLKDEV_RESERVE is not set
|
||||
|
||||
|
|
|
|||
|
|
@ -45,6 +45,9 @@
|
|||
#include <asm/setup.h>
|
||||
#include <asm/pgtable.h>
|
||||
|
||||
void (*pm_power_off)(void) = NULL;
|
||||
EXPORT_SYMBOL(pm_power_off);
|
||||
|
||||
asmlinkage void ret_from_fork(void);
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -733,7 +733,7 @@ config PHYSICAL_START
|
|||
|
||||
config HOTPLUG_CPU
|
||||
bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
|
||||
depends on SMP && HOTPLUG && EXPERIMENTAL
|
||||
depends on SMP && HOTPLUG && EXPERIMENTAL && !X86_VOYAGER
|
||||
---help---
|
||||
Say Y here to experiment with turning CPUs off and on. CPUs
|
||||
can be controlled through /sys/devices/system/cpu.
|
||||
|
|
@ -1060,6 +1060,7 @@ source "arch/i386/oprofile/Kconfig"
|
|||
|
||||
config KPROBES
|
||||
bool "Kprobes (EXPERIMENTAL)"
|
||||
depends on EXPERIMENTAL && MODULES
|
||||
help
|
||||
Kprobes allows you to trap at almost any kernel address and
|
||||
execute a callback function. register_kprobe() establishes
|
||||
|
|
|
|||
3
arch/i386/boot/.gitignore
vendored
Normal file
3
arch/i386/boot/.gitignore
vendored
Normal file
|
|
@ -0,0 +1,3 @@
|
|||
bootsect
|
||||
bzImage
|
||||
setup
|
||||
1
arch/i386/boot/tools/.gitignore
vendored
Normal file
1
arch/i386/boot/tools/.gitignore
vendored
Normal file
|
|
@ -0,0 +1 @@
|
|||
build
|
||||
1
arch/i386/kernel/.gitignore
vendored
Normal file
1
arch/i386/kernel/.gitignore
vendored
Normal file
|
|
@ -0,0 +1 @@
|
|||
vsyscall.lds
|
||||
|
|
@ -7,11 +7,11 @@ extra-y := head.o init_task.o vmlinux.lds
|
|||
obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \
|
||||
ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \
|
||||
pci-dma.o i386_ksyms.o i387.o dmi_scan.o bootflag.o \
|
||||
quirks.o i8237.o
|
||||
quirks.o i8237.o topology.o
|
||||
|
||||
obj-y += cpu/
|
||||
obj-y += timers/
|
||||
obj-$(CONFIG_ACPI) += acpi/
|
||||
obj-y += acpi/
|
||||
obj-$(CONFIG_X86_BIOS_REBOOT) += reboot.o
|
||||
obj-$(CONFIG_MCA) += mca.o
|
||||
obj-$(CONFIG_X86_MSR) += msr.o
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
obj-y := boot.o
|
||||
obj-$(CONFIG_ACPI) += boot.o
|
||||
obj-$(CONFIG_X86_IO_APIC) += earlyquirk.o
|
||||
obj-$(CONFIG_ACPI_SLEEP) += sleep.o wakeup.o
|
||||
|
||||
|
|
|
|||
|
|
@ -1111,9 +1111,6 @@ int __init acpi_boot_table_init(void)
|
|||
disable_acpi();
|
||||
return error;
|
||||
}
|
||||
#ifdef __i386__
|
||||
check_acpi_pci();
|
||||
#endif
|
||||
|
||||
acpi_table_parse(ACPI_BOOT, acpi_parse_sbf);
|
||||
|
||||
|
|
|
|||
|
|
@ -7,14 +7,22 @@
|
|||
#include <linux/pci.h>
|
||||
#include <asm/pci-direct.h>
|
||||
#include <asm/acpi.h>
|
||||
#include <asm/apic.h>
|
||||
|
||||
static int __init check_bridge(int vendor, int device)
|
||||
{
|
||||
#ifdef CONFIG_ACPI
|
||||
/* According to Nvidia all timer overrides are bogus. Just ignore
|
||||
them all. */
|
||||
if (vendor == PCI_VENDOR_ID_NVIDIA) {
|
||||
acpi_skip_timer_override = 1;
|
||||
}
|
||||
#endif
|
||||
if (vendor == PCI_VENDOR_ID_ATI && timer_over_8254 == 1) {
|
||||
timer_over_8254 = 0;
|
||||
printk(KERN_INFO "ATI board detected. Disabling timer routing "
|
||||
"over 8254.\n");
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -570,16 +570,18 @@ void __devinit setup_local_APIC(void)
|
|||
*/
|
||||
void lapic_shutdown(void)
|
||||
{
|
||||
unsigned long flags;
|
||||
|
||||
if (!cpu_has_apic)
|
||||
return;
|
||||
|
||||
local_irq_disable();
|
||||
local_irq_save(flags);
|
||||
clear_local_APIC();
|
||||
|
||||
if (enabled_via_apicbase)
|
||||
disable_local_APIC();
|
||||
|
||||
local_irq_enable();
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
|
|
|
|||
|
|
@ -4,6 +4,7 @@
|
|||
#include <linux/smp.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/percpu.h>
|
||||
#include <linux/bootmem.h>
|
||||
#include <asm/semaphore.h>
|
||||
#include <asm/processor.h>
|
||||
#include <asm/i387.h>
|
||||
|
|
@ -18,6 +19,9 @@
|
|||
|
||||
#include "cpu.h"
|
||||
|
||||
DEFINE_PER_CPU(struct Xgt_desc_struct, cpu_gdt_descr);
|
||||
EXPORT_PER_CPU_SYMBOL(cpu_gdt_descr);
|
||||
|
||||
DEFINE_PER_CPU(unsigned char, cpu_16bit_stack[CPU_16BIT_STACK_SIZE]);
|
||||
EXPORT_PER_CPU_SYMBOL(cpu_16bit_stack);
|
||||
|
||||
|
|
@ -274,10 +278,10 @@ void __devinit generic_identify(struct cpuinfo_x86 * c)
|
|||
c->x86_capability[4] = excap;
|
||||
c->x86 = (tfms >> 8) & 15;
|
||||
c->x86_model = (tfms >> 4) & 15;
|
||||
if (c->x86 == 0xf) {
|
||||
if (c->x86 == 0xf)
|
||||
c->x86 += (tfms >> 20) & 0xff;
|
||||
if (c->x86 >= 0x6)
|
||||
c->x86_model += ((tfms >> 16) & 0xF) << 4;
|
||||
}
|
||||
c->x86_mask = tfms & 15;
|
||||
} else {
|
||||
/* Have CPUID level 0 only - unheard of */
|
||||
|
|
@ -571,8 +575,9 @@ void __devinit cpu_init(void)
|
|||
int cpu = smp_processor_id();
|
||||
struct tss_struct * t = &per_cpu(init_tss, cpu);
|
||||
struct thread_struct *thread = ¤t->thread;
|
||||
struct desc_struct *gdt = get_cpu_gdt_table(cpu);
|
||||
struct desc_struct *gdt;
|
||||
__u32 stk16_off = (__u32)&per_cpu(cpu_16bit_stack, cpu);
|
||||
struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, cpu);
|
||||
|
||||
if (cpu_test_and_set(cpu, cpu_initialized)) {
|
||||
printk(KERN_WARNING "CPU#%d already initialized!\n", cpu);
|
||||
|
|
@ -589,6 +594,25 @@ void __devinit cpu_init(void)
|
|||
set_in_cr4(X86_CR4_TSD);
|
||||
}
|
||||
|
||||
/*
|
||||
* This is a horrible hack to allocate the GDT. The problem
|
||||
* is that cpu_init() is called really early for the boot CPU
|
||||
* (and hence needs bootmem) but much later for the secondary
|
||||
* CPUs, when bootmem will have gone away
|
||||
*/
|
||||
if (NODE_DATA(0)->bdata->node_bootmem_map) {
|
||||
gdt = (struct desc_struct *)alloc_bootmem_pages(PAGE_SIZE);
|
||||
/* alloc_bootmem_pages panics on failure, so no check */
|
||||
memset(gdt, 0, PAGE_SIZE);
|
||||
} else {
|
||||
gdt = (struct desc_struct *)get_zeroed_page(GFP_KERNEL);
|
||||
if (unlikely(!gdt)) {
|
||||
printk(KERN_CRIT "CPU%d failed to allocate GDT\n", cpu);
|
||||
for (;;)
|
||||
local_irq_enable();
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Initialize the per-CPU GDT with the boot GDT,
|
||||
* and set up the GDT descriptor:
|
||||
|
|
@ -601,10 +625,10 @@ void __devinit cpu_init(void)
|
|||
((((__u64)stk16_off) << 32) & 0xff00000000000000ULL) |
|
||||
(CPU_16BIT_STACK_SIZE - 1);
|
||||
|
||||
cpu_gdt_descr[cpu].size = GDT_SIZE - 1;
|
||||
cpu_gdt_descr[cpu].address = (unsigned long)gdt;
|
||||
cpu_gdt_descr->size = GDT_SIZE - 1;
|
||||
cpu_gdt_descr->address = (unsigned long)gdt;
|
||||
|
||||
load_gdt(&cpu_gdt_descr[cpu]);
|
||||
load_gdt(cpu_gdt_descr);
|
||||
load_idt(&idt_descr);
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -1,4 +1,5 @@
|
|||
#include <linux/kernel.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/init.h>
|
||||
#include <asm/processor.h>
|
||||
#include <asm/msr.h>
|
||||
|
|
|
|||
|
|
@ -70,10 +70,13 @@ static void efi_call_phys_prelog(void)
|
|||
{
|
||||
unsigned long cr4;
|
||||
unsigned long temp;
|
||||
struct Xgt_desc_struct *cpu_gdt_descr;
|
||||
|
||||
spin_lock(&efi_rt_lock);
|
||||
local_irq_save(efi_rt_eflags);
|
||||
|
||||
cpu_gdt_descr = &per_cpu(cpu_gdt_descr, 0);
|
||||
|
||||
/*
|
||||
* If I don't have PSE, I should just duplicate two entries in page
|
||||
* directory. If I have PSE, I just need to duplicate one entry in
|
||||
|
|
@ -103,17 +106,18 @@ static void efi_call_phys_prelog(void)
|
|||
*/
|
||||
local_flush_tlb();
|
||||
|
||||
cpu_gdt_descr[0].address = __pa(cpu_gdt_descr[0].address);
|
||||
load_gdt((struct Xgt_desc_struct *) __pa(&cpu_gdt_descr[0]));
|
||||
cpu_gdt_descr->address = __pa(cpu_gdt_descr->address);
|
||||
load_gdt(cpu_gdt_descr);
|
||||
}
|
||||
|
||||
static void efi_call_phys_epilog(void)
|
||||
{
|
||||
unsigned long cr4;
|
||||
struct Xgt_desc_struct *cpu_gdt_descr = &per_cpu(cpu_gdt_descr, 0);
|
||||
|
||||
cpu_gdt_descr->address = __va(cpu_gdt_descr->address);
|
||||
load_gdt(cpu_gdt_descr);
|
||||
|
||||
cpu_gdt_descr[0].address =
|
||||
(unsigned long) __va(cpu_gdt_descr[0].address);
|
||||
load_gdt(&cpu_gdt_descr[0]);
|
||||
cr4 = read_cr4();
|
||||
|
||||
if (cr4 & X86_CR4_PSE) {
|
||||
|
|
|
|||
|
|
@ -398,7 +398,11 @@ ignore_int:
|
|||
pushl 32(%esp)
|
||||
pushl 40(%esp)
|
||||
pushl $int_msg
|
||||
#ifdef CONFIG_EARLY_PRINTK
|
||||
call early_printk
|
||||
#else
|
||||
call printk
|
||||
#endif
|
||||
addl $(5*4),%esp
|
||||
popl %ds
|
||||
popl %es
|
||||
|
|
@ -530,5 +534,3 @@ ENTRY(cpu_gdt_table)
|
|||
.quad 0x0000000000000000 /* 0xf0 - unused */
|
||||
.quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */
|
||||
|
||||
/* Be sure this is zeroed to avoid false validations in Xen */
|
||||
.fill PAGE_SIZE_asm / 8 - GDT_ENTRIES,8,0
|
||||
|
|
|
|||
|
|
@ -3,8 +3,6 @@
|
|||
#include <asm/checksum.h>
|
||||
#include <asm/desc.h>
|
||||
|
||||
EXPORT_SYMBOL_GPL(cpu_gdt_descr);
|
||||
|
||||
EXPORT_SYMBOL(__down_failed);
|
||||
EXPORT_SYMBOL(__down_failed_interruptible);
|
||||
EXPORT_SYMBOL(__down_failed_trylock);
|
||||
|
|
|
|||
|
|
@ -51,6 +51,8 @@ static struct { int pin, apic; } ioapic_i8259 = { -1, -1 };
|
|||
|
||||
static DEFINE_SPINLOCK(ioapic_lock);
|
||||
|
||||
int timer_over_8254 __initdata = 1;
|
||||
|
||||
/*
|
||||
* Is the SiS APIC rmw bug present ?
|
||||
* -1 = don't know, 0 = no, 1 = yes
|
||||
|
|
@ -2267,7 +2269,8 @@ static inline void check_timer(void)
|
|||
apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_EXTINT);
|
||||
init_8259A(1);
|
||||
timer_ack = 1;
|
||||
enable_8259A_irq(0);
|
||||
if (timer_over_8254 > 0)
|
||||
enable_8259A_irq(0);
|
||||
|
||||
pin1 = find_isa_irq_pin(0, mp_INT);
|
||||
apic1 = find_isa_irq_apic(0, mp_INT);
|
||||
|
|
@ -2392,6 +2395,20 @@ void __init setup_IO_APIC(void)
|
|||
print_IO_APIC();
|
||||
}
|
||||
|
||||
static int __init setup_disable_8254_timer(char *s)
|
||||
{
|
||||
timer_over_8254 = -1;
|
||||
return 1;
|
||||
}
|
||||
static int __init setup_enable_8254_timer(char *s)
|
||||
{
|
||||
timer_over_8254 = 2;
|
||||
return 1;
|
||||
}
|
||||
|
||||
__setup("disable_8254_timer", setup_disable_8254_timer);
|
||||
__setup("enable_8254_timer", setup_enable_8254_timer);
|
||||
|
||||
/*
|
||||
* Called after all the initialization is done. If we didnt find any
|
||||
* APIC bugs then we can allow the modify fast path
|
||||
|
|
@ -2566,8 +2583,10 @@ int __init io_apic_get_unique_id (int ioapic, int apic_id)
|
|||
spin_unlock_irqrestore(&ioapic_lock, flags);
|
||||
|
||||
/* Sanity check */
|
||||
if (reg_00.bits.ID != apic_id)
|
||||
panic("IOAPIC[%d]: Unable change apic_id!\n", ioapic);
|
||||
if (reg_00.bits.ID != apic_id) {
|
||||
printk("IOAPIC[%d]: Unable to change apic_id!\n", ioapic);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
apic_printk(APIC_VERBOSE, KERN_INFO
|
||||
|
|
|
|||
|
|
@ -58,6 +58,11 @@ static inline int is_IF_modifier(kprobe_opcode_t opcode)
|
|||
|
||||
int __kprobes arch_prepare_kprobe(struct kprobe *p)
|
||||
{
|
||||
/* insn: must be on special executable page on i386. */
|
||||
p->ainsn.insn = get_insn_slot();
|
||||
if (!p->ainsn.insn)
|
||||
return -ENOMEM;
|
||||
|
||||
memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
|
||||
p->opcode = *p->addr;
|
||||
return 0;
|
||||
|
|
@ -77,6 +82,13 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p)
|
|||
(unsigned long) p->addr + sizeof(kprobe_opcode_t));
|
||||
}
|
||||
|
||||
void __kprobes arch_remove_kprobe(struct kprobe *p)
|
||||
{
|
||||
down(&kprobe_mutex);
|
||||
free_insn_slot(p->ainsn.insn);
|
||||
up(&kprobe_mutex);
|
||||
}
|
||||
|
||||
static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb)
|
||||
{
|
||||
kcb->prev_kprobe.kp = kprobe_running();
|
||||
|
|
@ -111,7 +123,7 @@ static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
|
|||
if (p->opcode == BREAKPOINT_INSTRUCTION)
|
||||
regs->eip = (unsigned long)p->addr;
|
||||
else
|
||||
regs->eip = (unsigned long)&p->ainsn.insn;
|
||||
regs->eip = (unsigned long)p->ainsn.insn;
|
||||
}
|
||||
|
||||
/* Called with kretprobe_lock held */
|
||||
|
|
@ -351,7 +363,7 @@ static void __kprobes resume_execution(struct kprobe *p,
|
|||
{
|
||||
unsigned long *tos = (unsigned long *)®s->esp;
|
||||
unsigned long next_eip = 0;
|
||||
unsigned long copy_eip = (unsigned long)&p->ainsn.insn;
|
||||
unsigned long copy_eip = (unsigned long)p->ainsn.insn;
|
||||
unsigned long orig_eip = (unsigned long)p->addr;
|
||||
|
||||
switch (p->ainsn.insn[0]) {
|
||||
|
|
|
|||
|
|
@ -116,13 +116,13 @@ static void load_segments(void)
|
|||
__asm__ __volatile__ (
|
||||
"\tljmp $"STR(__KERNEL_CS)",$1f\n"
|
||||
"\t1:\n"
|
||||
"\tmovl $"STR(__KERNEL_DS)",%eax\n"
|
||||
"\tmovl %eax,%ds\n"
|
||||
"\tmovl %eax,%es\n"
|
||||
"\tmovl %eax,%fs\n"
|
||||
"\tmovl %eax,%gs\n"
|
||||
"\tmovl %eax,%ss\n"
|
||||
);
|
||||
"\tmovl $"STR(__KERNEL_DS)",%%eax\n"
|
||||
"\tmovl %%eax,%%ds\n"
|
||||
"\tmovl %%eax,%%es\n"
|
||||
"\tmovl %%eax,%%fs\n"
|
||||
"\tmovl %%eax,%%gs\n"
|
||||
"\tmovl %%eax,%%ss\n"
|
||||
::: "eax", "memory");
|
||||
#undef STR
|
||||
#undef __STR
|
||||
}
|
||||
|
|
|
|||
|
|
@ -74,6 +74,7 @@
|
|||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/sched.h>
|
||||
#include <linux/cpumask.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/vmalloc.h>
|
||||
|
|
@ -250,8 +251,8 @@ static int find_matching_ucodes (void)
|
|||
error = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
for (cpu_num = 0; cpu_num < num_online_cpus(); cpu_num++) {
|
||||
|
||||
for_each_online_cpu(cpu_num) {
|
||||
struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num;
|
||||
if (uci->err != MC_NOTFOUND) /* already found a match or not an online cpu*/
|
||||
continue;
|
||||
|
|
@ -293,7 +294,7 @@ static int find_matching_ucodes (void)
|
|||
error = -EFAULT;
|
||||
goto out;
|
||||
}
|
||||
for (cpu_num = 0; cpu_num < num_online_cpus(); cpu_num++) {
|
||||
for_each_online_cpu(cpu_num) {
|
||||
struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num;
|
||||
if (uci->err != MC_NOTFOUND) /* already found a match or not an online cpu*/
|
||||
continue;
|
||||
|
|
@ -304,7 +305,9 @@ static int find_matching_ucodes (void)
|
|||
}
|
||||
}
|
||||
/* now check if any cpu has matched */
|
||||
for (cpu_num = 0, allocated_flag = 0, sum = 0; cpu_num < num_online_cpus(); cpu_num++) {
|
||||
allocated_flag = 0;
|
||||
sum = 0;
|
||||
for_each_online_cpu(cpu_num) {
|
||||
if (ucode_cpu_info[cpu_num].err == MC_MARKED) {
|
||||
struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num;
|
||||
if (!allocated_flag) {
|
||||
|
|
@ -415,12 +418,12 @@ static int do_microcode_update (void)
|
|||
}
|
||||
|
||||
out_free:
|
||||
for (i = 0; i < num_online_cpus(); i++) {
|
||||
for_each_online_cpu(i) {
|
||||
if (ucode_cpu_info[i].mc) {
|
||||
int j;
|
||||
void *tmp = ucode_cpu_info[i].mc;
|
||||
vfree(tmp);
|
||||
for (j = i; j < num_online_cpus(); j++) {
|
||||
for_each_online_cpu(j) {
|
||||
if (ucode_cpu_info[j].mc == tmp)
|
||||
ucode_cpu_info[j].mc = NULL;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -710,7 +710,7 @@ void __init get_smp_config (void)
|
|||
* Read the physical hardware table. Anything here will
|
||||
* override the defaults.
|
||||
*/
|
||||
if (!smp_read_mpc((void *)mpf->mpf_physptr)) {
|
||||
if (!smp_read_mpc(phys_to_virt(mpf->mpf_physptr))) {
|
||||
smp_found_config = 0;
|
||||
printk(KERN_ERR "BIOS bug, MP table errors detected!...\n");
|
||||
printk(KERN_ERR "... disabling SMP support. (tell your hw vendor)\n");
|
||||
|
|
@ -915,6 +915,7 @@ void __init mp_register_ioapic (
|
|||
u32 gsi_base)
|
||||
{
|
||||
int idx = 0;
|
||||
int tmpid;
|
||||
|
||||
if (nr_ioapics >= MAX_IO_APICS) {
|
||||
printk(KERN_ERR "ERROR: Max # of I/O APICs (%d) exceeded "
|
||||
|
|
@ -935,9 +936,14 @@ void __init mp_register_ioapic (
|
|||
|
||||
set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
|
||||
if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && (boot_cpu_data.x86 < 15))
|
||||
mp_ioapics[idx].mpc_apicid = io_apic_get_unique_id(idx, id);
|
||||
tmpid = io_apic_get_unique_id(idx, id);
|
||||
else
|
||||
mp_ioapics[idx].mpc_apicid = id;
|
||||
tmpid = id;
|
||||
if (tmpid == -1) {
|
||||
nr_ioapics--;
|
||||
return;
|
||||
}
|
||||
mp_ioapics[idx].mpc_apicid = tmpid;
|
||||
mp_ioapics[idx].mpc_apicver = io_apic_get_version(idx);
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -357,7 +357,7 @@ static void clear_msr_range(unsigned int base, unsigned int n)
|
|||
wrmsr(base+i, 0, 0);
|
||||
}
|
||||
|
||||
static inline void write_watchdog_counter(const char *descr)
|
||||
static void write_watchdog_counter(const char *descr)
|
||||
{
|
||||
u64 count = (u64)cpu_khz * 1000;
|
||||
|
||||
|
|
@ -544,7 +544,7 @@ void nmi_watchdog_tick (struct pt_regs * regs)
|
|||
* die_nmi will return ONLY if NOTIFY_STOP happens..
|
||||
*/
|
||||
die_nmi(regs, "NMI Watchdog detected LOCKUP");
|
||||
|
||||
} else {
|
||||
last_irq_sums[cpu] = sum;
|
||||
alert_counter[cpu] = 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1599,6 +1599,10 @@ void __init setup_arch(char **cmdline_p)
|
|||
if (efi_enabled)
|
||||
efi_map_memmap();
|
||||
|
||||
#ifdef CONFIG_X86_IO_APIC
|
||||
check_acpi_pci(); /* Checks more than just ACPI actually */
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ACPI
|
||||
/*
|
||||
* Parse the ACPI tables for possible boot-time SMP configuration.
|
||||
|
|
|
|||
|
|
@ -87,11 +87,7 @@ EXPORT_SYMBOL(cpu_online_map);
|
|||
cpumask_t cpu_callin_map;
|
||||
cpumask_t cpu_callout_map;
|
||||
EXPORT_SYMBOL(cpu_callout_map);
|
||||
#ifdef CONFIG_HOTPLUG_CPU
|
||||
cpumask_t cpu_possible_map = CPU_MASK_ALL;
|
||||
#else
|
||||
cpumask_t cpu_possible_map;
|
||||
#endif
|
||||
EXPORT_SYMBOL(cpu_possible_map);
|
||||
static cpumask_t smp_commenced_mask;
|
||||
|
||||
|
|
@ -902,12 +898,6 @@ static int __devinit do_boot_cpu(int apicid, int cpu)
|
|||
unsigned long start_eip;
|
||||
unsigned short nmi_high = 0, nmi_low = 0;
|
||||
|
||||
if (!cpu_gdt_descr[cpu].address &&
|
||||
!(cpu_gdt_descr[cpu].address = get_zeroed_page(GFP_KERNEL))) {
|
||||
printk("Failed to allocate GDT for CPU %d\n", cpu);
|
||||
return 1;
|
||||
}
|
||||
|
||||
++cpucount;
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -299,7 +299,7 @@ ENTRY(sys_call_table)
|
|||
.long sys_mknodat
|
||||
.long sys_fchownat
|
||||
.long sys_futimesat
|
||||
.long sys_newfstatat /* 300 */
|
||||
.long sys_fstatat64 /* 300 */
|
||||
.long sys_unlinkat
|
||||
.long sys_renameat
|
||||
.long sys_linkat
|
||||
|
|
|
|||
|
|
@ -412,9 +412,9 @@ static int timer_resume(struct sys_device *dev)
|
|||
write_seqlock_irqsave(&xtime_lock, flags);
|
||||
xtime.tv_sec = sec;
|
||||
xtime.tv_nsec = 0;
|
||||
write_sequnlock_irqrestore(&xtime_lock, flags);
|
||||
jiffies += sleep_length;
|
||||
jiffies_64 += sleep_length;
|
||||
wall_jiffies += sleep_length;
|
||||
write_sequnlock_irqrestore(&xtime_lock, flags);
|
||||
if (last_timer->resume)
|
||||
last_timer->resume();
|
||||
cur_timer = last_timer;
|
||||
|
|
|
|||
|
|
@ -282,6 +282,10 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
|
|||
if (val != CPUFREQ_RESUMECHANGE)
|
||||
write_seqlock_irq(&xtime_lock);
|
||||
if (!ref_freq) {
|
||||
if (!freq->old){
|
||||
ref_freq = freq->new;
|
||||
goto end;
|
||||
}
|
||||
ref_freq = freq->old;
|
||||
loops_per_jiffy_ref = cpu_data[freq->cpu].loops_per_jiffy;
|
||||
#ifndef CONFIG_SMP
|
||||
|
|
@ -307,6 +311,7 @@ time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
|
|||
#endif
|
||||
}
|
||||
|
||||
end:
|
||||
if (val != CPUFREQ_RESUMECHANGE)
|
||||
write_sequnlock_irq(&xtime_lock);
|
||||
|
||||
|
|
|
|||
|
|
@ -1,12 +1,12 @@
|
|||
/*
|
||||
* arch/i386/mach-generic/topology.c - Populate driverfs with topology information
|
||||
* arch/i386/kernel/topology.c - Populate driverfs with topology information
|
||||
*
|
||||
* Written by: Matthew Dobson, IBM Corporation
|
||||
* Original Code: Paul Dorwin, IBM Corporation, Patrick Mochel, OSDL
|
||||
*
|
||||
* Copyright (C) 2002, IBM Corp.
|
||||
*
|
||||
* All rights reserved.
|
||||
* All rights reserved.
|
||||
*
|
||||
* 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
|
||||
|
|
@ -34,7 +34,7 @@ static struct i386_cpu cpu_devices[NR_CPUS];
|
|||
|
||||
int arch_register_cpu(int num){
|
||||
struct node *parent = NULL;
|
||||
|
||||
|
||||
#ifdef CONFIG_NUMA
|
||||
int node = cpu_to_node(num);
|
||||
if (node_online(node))
|
||||
|
|
@ -7,6 +7,21 @@
|
|||
* for details.
|
||||
*/
|
||||
|
||||
/*
|
||||
* The caller puts arg2 in %ecx, which gets pushed. The kernel will use
|
||||
* %ecx itself for arg2. The pushing is because the sysexit instruction
|
||||
* (found in entry.S) requires that we clobber %ecx with the desired %esp.
|
||||
* User code might expect that %ecx is unclobbered though, as it would be
|
||||
* for returning via the iret instruction, so we must push and pop.
|
||||
*
|
||||
* The caller puts arg3 in %edx, which the sysexit instruction requires
|
||||
* for %eip. Thus, exactly as for arg2, we must push and pop.
|
||||
*
|
||||
* Arg6 is different. The caller puts arg6 in %ebp. Since the sysenter
|
||||
* instruction clobbers %esp, the user's %esp won't even survive entry
|
||||
* into the kernel. We store %esp in %ebp. Code in entry.S must fetch
|
||||
* arg6 from the stack.
|
||||
*/
|
||||
.text
|
||||
.globl __kernel_vsyscall
|
||||
.type __kernel_vsyscall,@function
|
||||
|
|
|
|||
|
|
@ -2,4 +2,4 @@
|
|||
# Makefile for the linux kernel.
|
||||
#
|
||||
|
||||
obj-y := setup.o topology.o
|
||||
obj-y := setup.o
|
||||
|
|
|
|||
Some files were not shown because too many files have changed in this diff Show more
Loading…
Reference in a new issue