| 421d1563c6620423d23e394711e3f209e585c161 |
|
04-Mar-2014 |
Thomas Gleixner <tglx@linutronix.de> |
mips: Validate online cpus in irq_set_affinity() callbacks
The [user space] interface does not filter out offline cpus. It merily
guarantees that the mask contains at least one online cpu.
So the selector in the irq chip implementation needs to make sure to
pick only an online cpu because otherwise:
Offline Core 1
Set affinity to 0xe (is valid due to online mask 0xd)
cpumask_first will pick core 1, which is offline
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Link: http://lkml.kernel.org/r/20140304203100.744800502@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
| 7034228792cc561e79ff8600f02884bd4c80e287 |
|
22-Jan-2013 |
Ralf Baechle <ralf@linux-mips.org> |
MIPS: Whitespace cleanup.
Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| b81947c646bfefdf98e2fde5d7d39cbbda8525d4 |
|
28-Mar-2012 |
David Howells <dhowells@redhat.com> |
Disintegrate asm/system.h for MIPS
Disintegrate asm/system.h for MIPS.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
cc: linux-mips@linux-mips.org
|
| 1544129da2de9fa276429deed8fac3fbc45634be |
|
06-Jun-2011 |
Thomas Gleixner <tglx@linutronix.de> |
MIPS: SB1250: Restore dropped irq_mask function
Commit d6d5d5c4a (MIPS: Sibyte: Convert to new irq_chip functions)
removed the mask function which breaks irq_shutdown(). Restore it.
Reported-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2460/
Tested-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| e4ec7989b4e55d9275ebac66230b7dac6dcb1fae |
|
27-Mar-2011 |
Thomas Gleixner <tglx@linutronix.de> |
MIPS: Convert the irq functions to the new names
Scripted with coccinelle.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
|
| d6d5d5c4afd4c8bb4c5e3753a2141e9c3a874629 |
|
23-Mar-2011 |
Thomas Gleixner <tglx@linutronix.de> |
MIPS: Sibyte: Convert to new irq_chip functions
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2205/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 5a0e3ad6af8660be21ca98a971cd00f331318c05 |
|
24-Mar-2010 |
Tejun Heo <tj@kernel.org> |
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
|
| f77f13e22df4a40d237697df496152c8c37f3f2b |
|
29-Mar-2010 |
Gilles Espinasse <g.esp@free.fr> |
Fix comment and Kconfig typos for 'require' and 'fragment'
Signed-off-by: Gilles Espinasse <g.esp@free.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
| 5772f6deb6214a94248e5429869e99e8b7b9cf25 |
|
27-Feb-2010 |
Ralf Baechle <ralf@linux-mips.org> |
MIPS: SB1250: Convert IRQ controller lock to raw spinlock.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 4a8a738de637dc7141de5228d2d722573a329b95 |
|
27-Feb-2010 |
Ralf Baechle <ralf@linux-mips.org> |
MIPS: Make various locks static.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 7762f206a3f3a19a38ed91a3d87f019d8b4eafc1 |
|
17-Jun-2009 |
Ralf Baechle <ralf@linux-mips.org> |
MIPS: SB1250: Sort out merge mistake.
A wrong resolution of a merge conflict made the recently deleted wrong
error check in sb1250_set_affinity. Send the zombie back to the empire
of the undead.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 5d81b83d03eb32085c569854695e102dde7af544 |
|
04-May-2009 |
Thomas Bogendoerfer <tsbogend@alpha.franken.de> |
MIPS: Sibyte: Fix locking in set_irq_affinity
Locking of irq_desc is now done in irq_set_affinity; don't lock it again
in chip specific set_affinity function.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| d5dedd4507d307eb3f35f21b6e16f336fdc0d82a |
|
28-Apr-2009 |
Yinghai Lu <yinghai@kernel.org> |
irq: change ->set_affinity() to return status
according to Ingo, change set_affinity() in irq_chip should return int,
because that way we can handle failure cases in a much cleaner way, in
the genirq layer.
v2: fix two typos
[ Impact: extend API ]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: linux-arch@vger.kernel.org
LKML-Reference: <49F654E9.4070809@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
|
| c87e09096dcd1ea3da8dfe434ee694fac51031c8 |
|
30-Mar-2009 |
Ralf Baechle <ralf@linux-mips.org> |
MIPS: Enable GENERIC_HARDIRQS_NO__DO_IRQ for all platforms
__do_IRQ() is deprecated and will go away.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 0de26520c7cabf36e1de090ea8092f011a6106ce |
|
13-Dec-2008 |
Rusty Russell <rusty@rustcorp.com.au> |
cpumask: make irq_set_affinity() take a const struct cpumask
Impact: change existing irq_chip API
Not much point with gentle transition here: the struct irq_chip's
setaffinity method signature needs to change.
Fortunately, not widely used code, but hits a few architectures.
Note: In irq_select_affinity() I save a temporary in by mangling
irq_desc[irq].affinity directly. Ingo, does this break anything?
(Folded in fix from KOSAKI Motohiro)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Grant Grundler <grundler@parisc-linux.org>
Acked-by: Ingo Molnar <mingo@redhat.com>
Cc: ralf@linux-mips.org
Cc: grundler@parisc-linux.org
Cc: jeremy@xensource.com
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
|
| 8d60a903d986ffa26c41f0092320a3b9da20bfaf |
|
29-Jul-2008 |
Jason Wessel <jason.wessel@windriver.com> |
[MIPS] kgdb: Remove existing implementation
This patch explicitly removes the kgdb implementation, for mips which
is intended to be followed by a patch that adds a kgdb implementation
for MIPS that makes use of the kgdb core in the kernel.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 9e32a510afa62c0d548d78572031e6112d21e0ea |
|
31-Oct-2007 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] Sibyte: Build fixes / dead code removal.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 11ca25aa312d912c192ccfd5781669d794126118 |
|
29-Oct-2007 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] Sibyte: Delete {sb1250,bcm1480}_steal_irq().
They break the timer interrupt initialization and only seem to be a kludge
for initialization happening in the wrong order. Further testing done by
Thiemo confirms the suspicion that the other invocations also seem to have
useless.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| d04533650f64fe3367e180f3e488d92205152cd3 |
|
22-Oct-2007 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] time: SMP-proofing of Sibyte clockevent/clocksource code.
The BCM148 has 4 cores but there are also just 4 generic timers available
so use the ZBbus cycle counter instead of it. In addition the ZBbus
counter also offers a much higher resolution and 64-bit counting so I'm
considering a later complete conversion to it once I figure out if all
members of the Sibyte SOC family support it - the docs seem to agree but
the headers files seem to disagree ...
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| d527eef5b7f151320921f0ff7a88297cefc5be72 |
|
19-Oct-2007 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] Sibyte: Finish conversion to modern time APIs.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 21a151d8ca3aa74ee79f9791a9d4dc370d3e0636 |
|
12-Oct-2007 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] checkfiles: Fix "need space after that ','" errors.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 7bcf7717b6a047c272410d0cd00213185fe6b99d |
|
12-Oct-2007 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] Implement clockevents for R4000-style cp0 count/compare interrupt
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 477f949e0ad7f1d3503a87b9f158d70c29abc918 |
|
02-Aug-2007 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] Sibyte: CONFIG_SIBYTE_SB1250_DUART -> CONFIG_SERIAL_SB1250_DUART
This is needed since the Sibyte serial driver was exchanged.
Issue report by Imre Kaloz <kaloz@openwrt.org>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 119537c092638bf8a0672415024639353c773bb1 |
|
19-Mar-2007 |
Thiemo Seufer <ths@networkno.de> |
[MIPS] Misc fixes for plat_irq_dispatch functions
o adds missing ST0_IM masks, which caused the logging of valid interrupts
as spurious
o stops pnx8550 to log every interrupt as spurious
o adds cause register masks for ip22/ip32, which caused handling of masked
interrupts
o removes some superfluous parentheses in the SNI interrupt code
Signed-Off-By: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 70d21cdeef6331e67ed87262c894cd6601f0dccc |
|
14-Jan-2007 |
Atsushi Nemoto <anemo@mba.ocn.ne.jp> |
[MIPS] use name instead of typename for each irq_chip
The "typename" field was obsoleted by the "name" field.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 1603b5aca4f15b34848fb5594d0c7b6333b99144 |
|
01-Nov-2006 |
Atsushi Nemoto <anemo@mba.ocn.ne.jp> |
[MIPS] IRQ cleanups
This is a big irq cleanup patch.
* Use set_irq_chip() to register irq_chip.
* Initialize .mask, .unmask, .mask_ack field. Functions for these
method are already exist in most case.
* Do not initialize .startup, .shutdown, .enable, .disable fields if
default routines provided by irq_chip_set_defaults() were suitable.
* Remove redundant irq_desc initializations.
* Remove unnecessary local_irq_save/local_irq_restore, spin_lock.
With this cleanup, it would be easy to switch to slightly lightwait
irq flow handlers (handle_level_irq(), etc.) instead of __do_IRQ().
Though whole this patch is quite large, changes in each irq_chip are
not quite simple. Please review and test on your platform. Thanks.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 27f768192fe2d96936cef5d4713e228daee07ae2 |
|
09-Oct-2006 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] Cleanup unnecessary <asm/ptrace.h> inclusions.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 937a801576f954bd030d7c4a5a94571710d87c0b |
|
07-Oct-2006 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] Complete fixes after removal of pt_regs argument to int handlers.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| d599def5cd81439e7da04dc6754b257043f5e584 |
|
03-Oct-2006 |
Maciej W. Rozycki <macro@linux-mips.org> |
[MIPS] SB1250: Interrupt handler fixes
Mask cp0.status against cp0.cause. Additionally, spurious interrupts are
not recorded.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| dc41fb43966ae1318fe34a8e5f959924a7c05d81 |
|
16-Aug-2006 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] Fix 32-bit kernel by replacing 64-bit-only code.
dclz() expects its 64-bit argument being passed as a single register
but on 32-bit kernels it'll actually be in a register pair.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 6e61e85b0980f7b88cd5c4b822386ed00dd7e295 |
|
05-Jul-2006 |
Thiemo Seufer <ths@networkno.de> |
[MIPS] Sibyte: Improve interrupt latency again for sb1250/bcm1480
this patch restores the behaviour of the old (assembly-written)
interrupt handler, the handler is left as soon as a single interrupt
cause is handled.
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 94dee171df34b7955cd647da4c40ba67d55a7671 |
|
02-Jul-2006 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] Eleminate interrupt migration helper use.
> #define hw_interrupt_type irq_chip
> typedef struct irq_chip hw_irq_controller;
> #define no_irq_type no_irq_chip
> typedef struct irq_desc irq_desc_t;
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 6ab3d5624e172c553004ecc862bfeac16d9d68b7 |
|
30-Jun-2006 |
Jörn Engel <joern@wohnheim.fh-wedel.de> |
Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
|
| d1bef4ed5faf7d9872337b33c4269e45ae1bf960 |
|
29-Jun-2006 |
Ingo Molnar <mingo@elte.hu> |
[PATCH] genirq: rename desc->handler to desc->chip
This patch-queue improves the generic IRQ layer to be truly generic, by adding
various abstractions and features to it, without impacting existing
functionality.
While the queue can be best described as "fix and improve everything in the
generic IRQ layer that we could think of", and thus it consists of many
smaller features and lots of cleanups, the one feature that stands out most is
the new 'irq chip' abstraction.
The irq-chip abstraction is about describing and coding and IRQ controller
driver by mapping its raw hardware capabilities [and quirks, if needed] in a
straightforward way, without having to think about "IRQ flow"
(level/edge/etc.) type of details.
This stands in contrast with the current 'irq-type' model of genirq
architectures, which 'mixes' raw hardware capabilities with 'flow' details.
The patchset supports both types of irq controller designs at once, and
converts i386 and x86_64 to the new irq-chip design.
As a bonus side-effect of the irq-chip approach, chained interrupt controllers
(master/slave PIC constructs, etc.) are now supported by design as well.
The end result of this patchset intends to be simpler architecture-level code
and more consolidation between architectures.
We reused many bits of code and many concepts from Russell King's ARM IRQ
layer, the merging of which was one of the motivations for this patchset.
This patch:
rename desc->handler to desc->chip.
Originally i did not want to do this, because it's a big patch. But having
both "desc->handler", "desc->handle_irq" and "action->handler" caused a
large degree of confusion and made the code appear alot less clean than it
truly is.
I have also attempted a dual approach as well by introducing a
desc->chip alias - but that just wasnt robust enough and broke
frequently.
So lets get over with this quickly. The conversion was done automatically
via scripts and converts all the code in the kernel.
This renaming patch is the first one amongst the patches, so that the
remaining patches can stay flexible and can be merged and split up
without having some big monolithic patch act as a merge barrier.
[akpm@osdl.org: build fix]
[akpm@osdl.org: another build fix]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| 4fb60a4b80f9db94605c2a47807d34dfb9ae44c8 |
|
18-Jun-2006 |
Thiemo Seufer <ths@networkno.de> |
[MIPS] Random fixes for sb1250
Random improvements for sb1250: Silence compiler warnings, a bugfix for
the profiling code, and a comment typo.
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| e4ac58afdfac792c0583af30dbd9eae53e24c78b |
|
03-Apr-2006 |
Ralf Baechle <ralf@linux-mips.org> |
[MIPS] Rewrite all the assembler interrupt handlers to C.
Saves like 1,600 lines of code, is way easier to debug, compilers
frequently do a better job than the cut and paste type of handlers many
boards had. And finally having all the stuff done in a single place
also means alot of bug potencial for the MT ASE is gone.
The only surviving handler in assembler is the DECstation one; I hope
Maciej will rewrite it.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 942d042d17c77febab9af6815b2e77f665d0f9c1 |
|
23-Jun-2005 |
Andrew Isaacson <adi@broadcom.com> |
Use cpumask_t rather than hand-rolled bitmask code in sb1250_set_affinity.
Signed-Off-By: Andrew Isaacson <adi@broadcom.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 8ab00b9a02c55fd6263c5f7c0dc88389d94de327 |
|
28-Feb-2005 |
Ralf Baechle <ralf@linux-mips.org> |
Convert struct hw_interrupt_type initializations to ISO C99 named
initializers.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 65bda1a95d395c256818d1d8129487a4497b29d8 |
|
22-Feb-2005 |
Maciej W. Rozycki <macro@linux-mips.org> |
Switch SiByte drivers back to __raw_*() functions.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
|
| 42a3b4f25af8f8d77feddf27f839fa0628dbff1a |
|
04-Sep-2005 |
Ralf Baechle <ralf@linux-mips.org> |
[PATCH] mips: nuke trailing whitespace
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
|
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
|
17-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
|