Commit Graph

8977 Commits

Author SHA1 Message Date
Linus Torvalds e24bb60e11 Revert "[POWERPC] Don't get PCI IRQ from OF for devices with no IRQ"
This reverts commit 41550c5128.

Quoth Ben Herrenschmidt:
 "Please revert this one for now.  It seems to break G5s :( Looks like
  PCI cells inside Apple IO ASICs don't have a PCI_INTERRUPT_LINE set.
  I need to figure out a better fix."

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 15:38:22 -07:00
Al Viro 5dcded1b0b [PATCH] missed ia64 pt_regs fixes
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:32:36 -07:00
Al Viro 2f116cbf36 [PATCH] alpha pt_regs cleanups: collapse set_irq_regs() in titan_dispatch_irqs()
titan_dispatch_irqs() always gets get_irq_regs() as argument; kill
the argument and collapse set_irq_regs() in body.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:32:36 -07:00
Al Viro 4fa1970a23 [PATCH] alpha pt_regs cleanups: machine_check()
do set_irq_regs() in caller, kill pt_regs argument.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:32:36 -07:00
Al Viro 3dbb8c6289 [PATCH] alpha pt_regs cleanups: handle_irq()
isa_no_iack_sc_device_interrupt() always gets get_irq_regs() as
argument; kill that argument.

All but two callers of handle_irq() pass get_irq_regs() as argument;
convert the remaining two, kill set_irq_regs() inside handle_irq().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:32:35 -07:00
Al Viro 7ca56053b2 [PATCH] alpha pt_regs cleanups: device_interrupt
callers of ->device_interrupt() do set_irq_regs() now; pt_regs argument
removed, remaining uses of regs in instances of ->device_interrupt()
are switched to get_irq_regs() and will be gone in the next patch.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:32:35 -07:00
Al Viro 8dab42a967 [PATCH] m68k pt_regs fixes, part 2
Fallout from previous patch:
 - actually add include/asm-m68k/irq_regs.h
 - missed the prototype of sun3_sched_init()

NB: git diff without argumentgs sucks when you've added
some files...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:32:35 -07:00
Al Viro 7a39f52202 [PATCH] sparc32 rwlock fix
read_trylock() is broken on sparc32 (doesn't build and didn't work
right, actually).  Proposed fix:

 - make "writer holds lock" distinguishable from "reader tries to grab
   lock"

 - have __raw_read_trylock() try to acquire the mutex (in LSB of lock),
   terminating spin if we see that there's writer holding it.  Then do
   the rest as we do in read_lock().

Thanks to Ingo for discussion...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:32:35 -07:00
Al Viro 6d24c8dc2e [PATCH] sparc64 pt_regs fixes
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:32:35 -07:00
Al Viro 0d84438d98 [PATCH] sparc32 pt_regs fixes
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:32:35 -07:00
Linus Torvalds ff3df54efa Merge branch 'irq-fixes' of git://git.parisc-linux.org/git/linux-2.6
* 'irq-fixes' of git://git.parisc-linux.org/git/linux-2.6:
  [PARISC] More pt_regs removal
  [PARISC] pdc_init no longer exists
  [PARISC] Make firmware calls irqsafe-ish...
  [PA-RISC] Fix boot breakage
  [PARISC] Use set_irq_regs
2006-10-08 12:26:00 -07:00
Eric W. Biederman c7111c1318 [PATCH] x86_64 irq: Allocate a vector across all cpus for genapic_flat.
The problem we can't take advantage of lowest priority delivery mode if
the vectors are allocated for only one cpu at a time.  Nor can we work
around hardware that assumes lowest priority delivery mode is always
used with several cpus.

So this patch introduces the concept of a vector_allocation_domain.  A
set of cpus that will receive an irq on the same vector.  Currently the
code for implementing this is placed in the genapic structure so we can
vary this depending on how we are using the io_apics.

This allows us to restore the previous behaviour of genapic_flat without
removing the benefits of having separate vector allocation for large
machines.

This should also fix the problem report where a hyperthreaded cpu was
receving the irq on the wrong hyperthread when in logical delivery mode
because the previous behaviour is restored.

This patch properly records our allocation of the first 16 irqs to the
first 16 available vectors on all cpus.  This should be fine but it may
run into problems with multiple interrupts at the same interrupt level.
Except for some badly maintained comments in the code and the behaviour
of the interrupt allocator I have no real understanding of that problem.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:24:02 -07:00
Eric W. Biederman b940d22d58 [PATCH] i386/x86_64: Remove global IO_APIC_VECTOR
Which vector an irq is assigned to now varies dynamically and is
not needed outside of io_apic.c.  So remove the possibility
of accessing the information outside of io_apic.c and remove
the silly macro that makes looking for users of irq_vector
difficult.

The fact this compiles ensures there aren't any more pieces
of the old CONFIG_PCI_MSI weirdness that I failed to remove.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:24:02 -07:00
Eric W. Biederman 7da5d40679 [PATCH] i386/x86_64: FIX pci_enable_irq to set dev->irq to the irq number
In commit ace80ab796 I removed the weird
logic that used the vector number as the irq number when MSI was
defined.  However pci_enable_irq was using a different test in the
io_apic_assign_irqs path and I missed it :(

This patch removes the wrong code so no one hits this problem.

This code is only active when a specific set of boot command line
parameters is specified which likely explains why no one has notices
this earlier.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08 12:24:02 -07:00
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
Karl-Johan Karlsson 31aa36658a [MIPS] Show actual CPU information in /proc/cpuinfo
Currently, /proc/cpuinfo contains several copies of the information for
whatever processor we happen to be scheduled on. This patch makes it contain
the proper information for each CPU, which is particularly useful on mixed
R12k/R10k IP27 machines.

Signed-off-by: Karl-Johan Karlsson <creideiki@lysator.liu.se>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-08 02:38:27 +01:00
Scott Ashcroft 5c90d528b2 [MIPS] Cobalt: Time runs too quickly
A kernel built with HZ==250 runs about 4 four times too quickly on a
Cobalt RaQ2.

Signed-off-by: Scott Ashcroft <scott.ashcroft@talk21.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-08 02:38:27 +01:00
Ralf Baechle 59d6ab86a6 [MIPS] Update Malta config.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-08 02:38:27 +01:00
Linus Torvalds ba00003aa8 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] PReP fixup after irq changes
  [POWERPC] SPU fixup after irq changes
  [POWERPC] Fix up after irq changes
  [POWERPC] Fix iseries/smp.c for irq breakage
  [POWERPC] Fix viocons for irq breakage
  [POWERPC] Update iseries_defconfig
  [POWERPC] Fix fsl_soc build breaks
  [POWERPC] Minor fix for bootargs property
  [POWERPC] Update MTFSF_L() comment
  [POWERPC] Update pSeries defconfig for SATA
  [POWERPC] Don't get PCI IRQ from OF for devices with no IRQ
  [POWERPC] Fix zImage decompress location
  [POWERPC] linux,tce-size property is 32 bits
  [POWERPC] Add DTS for MPC8349E-mITX board
  [POWERPC] Fix harmless typo
  [PPC] Fix some irq breakage with ARCH=ppc
2006-10-07 10:52:00 -07:00
Al Viro 9c8e7f5cc9 [PATCH] m32r pt_regs fixes
... and now with irq_regs.h not forgotten...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-07 10:51:15 -07:00
Al Viro 8774cb815f [PATCH] minimal alpha pt_regs fixes
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-07 10:51:14 -07:00
Al Viro 2850bc2737 [PATCH] m68k pt_regs fixes
m68k_handle_int() split in two functions: __m68k_handle_int() takes
pt_regs * and does set_irq_regs(); m68k_handle_int() doesn't get pt_regs
*.

Places where we used to call m68k_handle_int() recursively with the same
pt_regs have simply lost the second argument, the rest is switched to
__m68k_handle_int().

The rest of patch is just dropping pt_regs * where needed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-07 10:51:14 -07:00
Olaf Hering 40a5f7ca07 [POWERPC] PReP fixup after irq changes
Compile fixes for PReP in ARCH=ppc.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07 22:11:20 +10:00
Olaf Hering f5a924581a [POWERPC] SPU fixup after irq changes
Remove struct pt_regs * from remaining spu irq functions.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07 22:11:17 +10:00
Olaf Hering 35a84c2f56 [POWERPC] Fix up after irq changes
Remove struct pt_regs * from all handlers.
Also remove the regs argument from get_irq() functions.
Compile tested with arch/powerpc/config/* and
arch/ppc/configs/prep_defconfig

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07 22:08:26 +10:00
Matthew Wilcox c7753f1871 [PARISC] More pt_regs removal
Remove pt_regs from ipi_interrupt and timer_interrupt.
Inline smp_do_timer() into its only caller, and unify the SMP and
non-SMP paths.  Fixes a profiling bug.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
2006-10-07 06:01:11 -06:00
Kyle McMartin 09690b18b7 [PARISC] Make firmware calls irqsafe-ish...
There's no reason why we shouldn't be using _irqsave instead of
_irq for any of these calls. fwiw, this fixes the
"start_kernel(): bug: interrupts were enabled early" message displayed
on bootup recently.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
2006-10-07 05:21:03 -06:00
Matthew Wilcox ba0e427f21 [PA-RISC] Fix boot breakage
Conditionals were the wrong way around.  Turns out I was booting the
wrong kernel when testing the original fix.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
2006-10-07 05:18:15 -06:00
Matthew Wilcox e11e30a063 [PARISC] Use set_irq_regs
Actually set the irq_regs pointer.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
2006-10-07 05:11:07 -06:00
Linus Torvalds ada26d41e9 Merge branch 'irq-fixes' of git://git.parisc-linux.org/git/linux-2.6
* 'irq-fixes' of git://git.parisc-linux.org/git/linux-2.6:
  Build fixes for struct pt_regs removal
2006-10-06 20:12:11 -07:00
Matthew Wilcox be577a5220 Build fixes for struct pt_regs removal
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
2006-10-06 20:47:23 -06:00
Stephen Rothwell 1224f373c9 [POWERPC] Fix iseries/smp.c for irq breakage
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07 10:10:30 +10:00
Stephen Rothwell b75f3f751c [POWERPC] Update iseries_defconfig
This make sure that an iseries_defconfig does not inlude
other platforms.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07 10:10:17 +10:00
Olof Johansson 2b00b254de [POWERPC] Fix fsl_soc build breaks
Hrm, there's no way this ever built at time of merge. There's a missing } and
the wrong type on phy_irq.

Also, another const for get_property().

  CC      arch/powerpc/sysdev/fsl_soc.o
arch/powerpc/sysdev/fsl_soc.c: In function 'fs_enet_of_init':
arch/powerpc/sysdev/fsl_soc.c:625: error: assignment of read-only variable 'phy_irq'
arch/powerpc/sysdev/fsl_soc.c:625: warning: assignment makes integer from pointer without a cast
arch/powerpc/sysdev/fsl_soc.c:661: warning: assignment discards qualifiers from pointer target type
arch/powerpc/sysdev/fsl_soc.c:684: error: subscripted value is neither array nor pointer
arch/powerpc/sysdev/fsl_soc.c:687: error: subscripted value is neither array nor pointer
arch/powerpc/sysdev/fsl_soc.c:722: warning: ISO C90 forbids mixed declarations and code
arch/powerpc/sysdev/fsl_soc.c:728: error: invalid storage class for function 'cpm_uart_of_init'
arch/powerpc/sysdev/fsl_soc.c:798: error: initializer element is not constant
arch/powerpc/sysdev/fsl_soc.c:798: error: expected declaration or statement at end of input
make[1]: *** [arch/powerpc/sysdev/fsl_soc.o] Error 1

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07 10:10:13 +10:00
Andrew Morton d150ad7bd9 [PATCH] x86_64 irq_regs fix
smp_apic_timer_interrupt() needs to stack the pt_regs* for profile_tick.

If any other of those APIC interrupt handlers want to run get_irq_regs() then
their C entrypoint handlers will need the same treatment.

Cc: Andi Kleen <ak@muc.de>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06 13:36:52 -07:00
Linus Torvalds e630015504 ARM: fix up nested irq regs usage
This should fix up the per-cpu irq register pointer if we have nested
hardware interrupts.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06 13:11:15 -07:00
Frederik Deweerdt e317c8ccaa [PATCH] ixp4xxdefconfig arm fixes
With the following patch, the ixp4xxdefconfig builds correctly.  I'll
test some more configs if I get some time.

Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06 12:11:08 -07:00
Linus Torvalds 428929a234 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Fix breakage from irq change
2006-10-06 11:08:57 -07:00
Linus Torvalds 0cd61b68c3 Initial blind fixup for arm for irq changes
Untested, but this should fix up the bulk of the totally mechanical
issues, and should make the actual detail fixing easier.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06 10:59:54 -07:00
Tony Luck 8c1addbc75 [IA64] Fix breakage from irq change
A few missed spots in ia64-land from this gigantic commit:

7d12e780e0

Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-10-06 10:09:41 -07:00
Linus Torvalds da104a8369 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] Use CONFIG_GENERIC_TIME and define TOD clock source.
  [PATCH] sysrq: irq change build fix.
  [S390] irq change build fixes.
  [S390] cio: 0 is a valid chpid.
  [S390] monwriter buffer limit.
  [S390] ap bus poll thread priority.
2006-10-06 09:13:53 -07:00
Pekka Enberg 96e1a87392 [PATCH] um: irq changes break build
Fixup broken UML build due to 7d12e780e0
"IRQ: Maintain regs pointer globally rather than passing to IRQ handlers".

Cc: David Howells <dhowells@redhat.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo "Blaisorblade" Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06 08:53:42 -07:00
Al Viro dc366708b3 [PATCH] m68k: dma_alloc_coherent() has gfp_t as the last argument
annotate, fix the bogus argument of vmap() in it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06 08:53:41 -07:00
Roman Zippel 6c04c28a65 [PATCH] m68k: fix typo in __generic_copy_to_user
Jump to the correct exit label after exception

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06 08:53:40 -07:00
Roman Zippel d6359fd783 [PATCH] m68k: cleanup string functions
- cleanup asm of string functions
- deinline strncat()/strncmp()
- provide non-inlined strcpy()

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06 08:53:40 -07:00
Andrew Morton d195412c35 [PATCH] i386: irqs build fix
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06 08:53:39 -07:00
Martin Schwidefsky dc64bef543 [S390] Use CONFIG_GENERIC_TIME and define TOD clock source.
Fix too slow clock by using CONFIG_GENERIC_TIME and adding a
clock source for the s390 time-of-day clock. As added benefit
we get rid of the s390 specific definition of do_gettimeofday
and do_settimeofday.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-06 16:38:48 +02:00
Heiko Carstens 5a489b9846 [S390] irq change build fixes.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-10-06 16:38:35 +02:00
Geoff Levand c1ce464d29 [POWERPC] Minor fix for bootargs property
Avoid the use of an uninitialized stack variable when the powerpc device tree
bootargs property is either missing or incorrectly defined.  This also makes
CONFIG_CMDLINE work properly under these conditions.  This change adds a test
for the existence of the bootargs property.

early_init_dt_scan_chosen() tests for a zero length bootargs property in its
CONFIG_CMDLINE processing, but the current implementation of
of_get_flat_dt_prop() doesn't assign a value to the length when no property is
found.  Since an automatic variable is used, a stale value from the stack will
be used in the test.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06 21:10:41 +10:00
Brian King 3afbf5d6ef [POWERPC] Update pSeries defconfig for SATA
Since the ipr driver now supports SATA and depends on libata,
enable libata to get built.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06 21:10:41 +10:00