Commit Graph

46 Commits

Author SHA1 Message Date
Franck Bui-Huu
e77c232cfc [MIPS] Compile __do_IRQ() when really needed
__do_IRQ() is needed only by irq handlers that can't use
default handlers defined in kernel/irq/chip.c.

For others platforms there's no need to compile this function
since it won't be used. For those platforms this patch defines
GENERIC_HARDIRQS_NO__DO_IRQ symbol which is used exactly for
this purpose.

Futhermore for platforms which do not use __do_IRQ(), end()
method which is part of the 'irq_chip' structure is not used.
This patch simply removes this method in this case.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-12-06 20:16:08 +00:00
Atsushi Nemoto
1417836e81 [MIPS] use generic_handle_irq, handle_level_irq, handle_percpu_irq
Further incorporation of generic irq framework.  Replacing __do_IRQ()
by proper flow handler would make the irq handling path a bit simpler
and faster.

* use generic_handle_irq() instead of __do_IRQ().
* use handle_level_irq for obvious level-type irq chips.
* use handle_percpu_irq for irqs marked as IRQ_PER_CPU.
* setup .eoi routine for irq chips possibly used with handle_percpu_irq.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-30 01:14:46 +00:00
Atsushi Nemoto
1603b5aca4 [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>
2006-11-30 01:14:46 +00:00
Ralf Baechle
ff28cbd280 [MIPS] Ocelot 3: Fix MAC address detection after platform_device conversion.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-06 20:55:38 +00:00
Ralf Baechle
907c51b2d1 [MIPS] Ocelot C: Fix MAC address detection after platform_device conversion.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-06 20:55:37 +00:00
Ralf Baechle
d19f7befe9 [MIPS] Ocelot 3: Fix large number of warnings.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-06 20:55:36 +00:00
Ralf Baechle
ad0b365573 [MIPS] Ocelot C: Fix mapping of ioport address range.
o Fix warnings
 o 768MB worth of I/O ports were insane
 o 64-bit kernels don't need special handling because ioremap does the magic

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-06 20:55:36 +00:00
Ralf Baechle
2002d2bde1 [MIPS] Ocelot C: Fix warning about missmatching format string.
CC      arch/mips/momentum/ocelot_c/setup.o
arch/mips/momentum/ocelot_c/setup.c: In function 'momenco_time_init':
arch/mips/momentum/ocelot_c/setup.c:223: warning: format '%d' expects type 'int', but argument 2 has type 'long unsigned int'

Change data type to match format string; a 32-bit type better suits our
needs.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-06 20:55:36 +00:00
Ralf Baechle
9c422e2ad6 [MIPS] Ocelot C: fix eth registration after conversion to platform_device
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-06 20:55:35 +00:00
Ralf Baechle
cca72333e7 [MIPS] Ocelot C: Fix large number of warnings.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-06 20:55:35 +00:00
Ralf Baechle
8b922a8517 [MIPS] Ocelot G: Fix : "CURRENTLY_UNUSED" is not defined warning.
CC      arch/mips/momentum/ocelot_g/gt-irq.o
arch/mips/momentum/ocelot_g/gt-irq.c:30:5: warning: "CURRENTLY_UNUSED" is not defined
arch/mips/momentum/ocelot_g/gt-irq.c:199:5: warning: "CURRENTLY_UNUSED" is not defined

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-11-02 17:23:33 +00:00
Ralf Baechle
6ceb6d3ab2 [MIPS] Ocelot G: Fix build error and numerous warnings.
The cause of the build errors was a 64-bit kernel being configured in
ocelot_g_defconfig without the code being 64-bit proof.  Fixed for now
by limiting 64-bit selection to SYS_SUPPORTS_64BIT_KERNEL if BROKEN.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-30 21:41:29 +00:00
Ralf Baechle
27f768192f [MIPS] Cleanup unnecessary <asm/ptrace.h> inclusions.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09 00:15:28 +01:00
Ralf Baechle
d864b96bb0 [MIPS] Ocelot C: Build fix - ll_mv64340_irq takes no more regs argument.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09 00:15:27 +01:00
Ralf Baechle
937a801576 [MIPS] Complete fixes after removal of pt_regs argument to int handlers.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-08 02:38:28 +01:00
Atsushi Nemoto
3171a0305d [PATCH] simplify update_times (avoid jiffies/jiffies_64 aliasing problem)
Pass ticks to do_timer() and update_times(), and adjust x86_64 and s390
timer interrupt handler with this change.

Currently update_times() calculates ticks by "jiffies - wall_jiffies", but
callers of do_timer() should know how many ticks to update.  Passing ticks
get rid of this redundant calculation.  Also there are another redundancy
pointed out by Martin Schwidefsky.

This cleanup make a barrier added by
5aee405c66 needless.  So this patch removes
it.

As a bonus, this cleanup make wall_jiffies can be removed easily, since now
wall_jiffies is always synced with jiffies.  (This patch does not really
remove wall_jiffies.  It would be another cleanup patch)

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Acked-by: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Hirokazu Takata <takata.hirokazu@renesas.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Richard Curnow <rc@rc0.org.uk>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: "Luck, Tony" <tony.luck@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29 09:18:15 -07:00
Ralf Baechle
54d0a216f4 [MIPS] Replace board_timer_setup function pointer by plat_timer_setup.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

---
2006-07-13 21:26:17 +01:00
Ralf Baechle
94dee171df [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>
2006-07-13 21:25:58 +01:00
Thomas Gleixner
f40298fddc [PATCH] irq-flags: MIPS: Use the new IRQF_ constants
Use the new IRQF_ constants and remove the SA_INTERRUPT define

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:47 -07:00
Jörn Engel
6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Linus Torvalds
8d231c11fd Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (33 commits)
  [MIPS] Add missing backslashes to macro definitions.
  [MIPS] Death list of board support to be removed after 2.6.18.
  [MIPS] Remove BSD and Sys V compat data types.
  [MIPS] ioc3.h: Uses u8, so include <linux/types.h>.
  [MIPS] 74K: Assume it will also have an AR bit in config7
  [MIPS] Treat CPUs with AR bit as physically indexed.
  [MIPS] Oprofile: Support VSMP on 34K.
  [MIPS] MIPS32/MIPS64 S-cache fix and cleanup
  [MIPS] excite: PCI makefile needs to use += if it wants a chance to work.
  [MIPS] excite: plat_setup -> plat_mem_setup.
  [MIPS] au1xxx: export dbdma functions
  [MIPS] au1xxx: dbdma, no sleeping under spin_lock
  [MIPS] au1xxx: fix PSC_SMBTXRX_RSR.
  [MIPS] Early printk for IP27.
  [MIPS] Fix handling of 0 length I & D caches.
  [MIPS] Typo fixes.
  [MIPS] MIPS32/MIPS64 secondary cache management
  [MIPS] Fix FIXADDR_TOP for TX39/TX49.
  [MIPS] Remove first timer interrupt setup in wrppmc_timer_setup()
  [MIPS] Fix configuration of R2 CPU features and multithreading.
  ...
2006-06-29 13:44:45 -07:00
Ralf Baechle
fc103349bb [MIPS] Remove BSD and Sys V compat data types.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-06-29 21:10:54 +01:00
Ingo Molnar
d1bef4ed5f [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>
2006-06-29 10:26:21 -07:00
Andreas Mohr
d6e05edc59 spelling fixes
acquired (aquired)
contiguous (contigious)
successful (succesful, succesfull)
surprise (suprise)
whether (weather)
some other misspellings

Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-26 18:35:02 +02:00
Ralf Baechle
2925aba422 [MIPS] Cleanup memory managment initialization.
Historically plat_mem_setup did the entire platform initialization.  This
was rather impractical because it meant plat_mem_setup had to get away
without any kind of memory allocator.  To keep old code from breaking
plat_setup was just renamed to plat_setup and a second platform
initialization hook for anything else was introduced.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-06-19 17:39:23 +01:00
Horst Schirmeier
e853534e6b [SERIAL] typo: buad -> baud
Replacing mistyped "buad" with "baud" where applicable.

Signed-off-by: Horst Schirmeier <horst@schirmeier.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-06-05 10:45:30 +01:00
Ralf Baechle
e4ac58afdf [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>
2006-04-19 04:14:21 +02:00
Ralf Baechle
c40b92e09c [MIPS] Ocelot 3: Fix build errors after the recent move of Marvell headers.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:20 +02:00
Ralf Baechle
b56bce9a25 [MIPS] Jaguar: Fix build errors after the recent move of Marvell headers.
Some things were renamed because the PPC variant of the MV-643XX now
uses the same header and the Jaguar code didn't catch up on that.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:19 +02:00
Ralf Baechle
93373ed4d8 [MIPS] Rewrite spurious_interrupt from assembler to C.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:18 +02:00
Matt Mackall
4f3a36a7d0 [PATCH] RTC: Remove some duplicate BCD definitions
Remove some duplicate BCD definitions

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-28 09:16:01 -08:00
Yoichi Yuasa
d23ee8fe6e [PATCH] mips: fixed collision of rtc function name
Fix the collision of rtc function name.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27 08:44:50 -08:00
Ralf Baechle
a3dddd560e [MIPS] War on whitespace: cleanup initial spaces followed by tabs.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-21 13:27:47 +00:00
Ralf Baechle
3367fd5075 [MIPS] Momentum: Resurrect after things were moved around a while ago.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-09 18:05:09 +00:00
Linus Torvalds
17be03f0a1 Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-02-08 15:21:22 -08:00
Ralf Baechle
fcdb27ad1d [MIPS] Rename _machine_power_off to pm_power_off so the kernel builds again.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07 13:30:22 +00:00
Russell King
59a675b220 [SERIAL] uart_port flags member should use UPF_*
Convert usage of ASYNC_* to UPF_*.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-02-05 10:52:29 +00:00
Ralf Baechle
3d5d440176 [MIPS] Ocelot G: Use CPU_MASK_NONE instead of 0 to initialize cpu mask.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-11-17 16:23:55 +00:00
Atsushi Nemoto
53c2df2f4e Use rtc_lock to protect RTC operations
Many RTC routines were not protected against each other, so there are
potential races, for example, ntp-update against /dev/rtc.  This patch
fixes them using rtc_lock.
    
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-11-07 18:05:38 +00:00
Arthur Othieno
5ef66935c1 prom_free_prom_memory() returns unsigned long
Some boards declare prom_free_prom_memory as a void function but the
    caller free_initmem() expects a return value.
    
    Fix those up and return 0 instead, just like everyone else does.
    
    Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch>
    Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29 19:32:53 +01:00
Ralf Baechle
5e83d43054 Sliceup Kconfig; it's grown too large.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29 19:32:41 +01:00
Ralf Baechle
8ab00b9a02 Convert struct hw_interrupt_type initializations to ISO C99 named
initializers.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29 19:30:46 +01:00
Ralf Baechle
c83cfc9c94 Get rid of early_init. There's more need to make this form of
initialization actually useful and as is certainly unmergable with
upstream.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29 19:30:18 +01:00
Ralf Baechle
42a3b4f25a [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>
2005-09-05 00:06:07 -07:00
Ralf Baechle
875d43e72b [PATCH] mips: clean up 32/64-bit configuration
Start cleaning 32-bit vs. 64-bit configuration.

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>
2005-09-05 00:06:06 -07:00
Linus Torvalds
1da177e4c3 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!
2005-04-16 15:20:36 -07:00