Commit Graph

9530 Commits

Author SHA1 Message Date
Paul Mackerras
4a2885630b powerpc: Reduce the 32/64-bit diffs in vmlinux.lds.S
Also adds the definition of the _sdata symbol to the ppc64 vmlinux.lds.S.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:38:46 +10:00
Paul Mackerras
8641778049 powerpc: Reduce the 32/64-bit differences in traps.c
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:37:57 +10:00
Paul Mackerras
b42b661745 powerpc: Make prom_init.c suitable for both 32-bit and 64-bit
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:37:16 +10:00
Paul Mackerras
9994a33865 powerpc: Introduce entry_{32,64}.S, misc_{32,64}.S, systbl.S
The system call table has been consolidated into systbl.S.  We have
separate 32-bit and 64-bit versions of entry.S and misc.S since the
code is mostly sufficiently different to be not worth merging.
There are some common bits that will be extracted in future.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:36:14 +10:00
Paul Mackerras
06d67d5474 powerpc: make process.c suitable for both 32-bit and 64-bit
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:29:05 +10:00
Paul Mackerras
daec962e27 powerpc: Use arch/powerpc/mm and arch/powerpc/lib for 64-bit
This also puts a copy of indirect_pci.c in arch/powerpc/sysdev
so that we don't need to build in arch/ppc/syslib.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:25:26 +10:00
Paul Mackerras
b3b8dc6c07 powerpc: Use reg.h instead of processor.h when we just want reg names
Now that the register names and bit definitions are all in reg.h,
use that instead of processor.h in assembly code in a few places.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:20:10 +10:00
Paul Mackerras
ff64208df7 powerpc: Merge Kconfig.debug
This merges in the ppc64 bits into arch/powerpc/Kconfig.debug

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:15:52 +10:00
Paul Mackerras
f6d57916db powerpc: rename powermac files to remove pmac_ prefix
Since the files are now in arch/powerpc/platforms/powermac, the
pmac_ prefix that they had is redundant.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:13:53 +10:00
Paul Mackerras
c17e3325ba ppc64: Use SPRN_ prefix for special purpose register names
Now that we are using the merged reg.h we have to use the SPRN_xxx
names rather than the xxx names.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:07:35 +10:00
Paul Mackerras
69a80d3f69 powerpc: move pSeries files to arch/powerpc/platforms/pseries
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 22:03:41 +10:00
Paul Mackerras
ab1f9dac6e powerpc: Merge arch/ppc64/mm to arch/powerpc/mm
This moves the remaining files in arch/ppc64/mm to arch/powerpc/mm,
and arranges that we use them when compiling with ARCH=ppc64.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 21:58:35 +10:00
Paul Mackerras
70d64ceaa1 powerpc: Rename files to have consistent _32/_64 suffixes
This doesn't change any code, just renames things so we consistently
have foo_32.c and foo_64.c where we have separate 32- and 64-bit
versions.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 21:52:43 +10:00
Paul Mackerras
a432403a89 ppc64: Use the merged lmb routines
The only real change here is that lmb_enforce_memory_limit now takes
the memory_limit as a parameter instead of as a global variable.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 20:49:07 +10:00
Paul Mackerras
9f04b9e327 powerpc: Merged processor.h.
This adds register definitions from the ppc64 processor.h to reg.h,
and makes a single merged processor.h.  I moved __is_processor from
the ppc64 system.h to the merged reg.h along with the PVR register
constants.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 14:19:43 +10:00
Paul Mackerras
b60fc8bbd2 powerpc: Make some #includes explicit.
In preparation for merging processor.h, this adds some explicit
but won't be after the merge.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 14:14:55 +10:00
Paul Mackerras
b5bbeb2373 powerpc: Use SPRN_xxx rather than xxx for SPR numbers
This changes symbols like HID0, SPRG3, SRR0, SRR1 etc. that refer to
special purpose registers to SPRN_HID0, SPRN_SPRG3, etc.  Using the
SPRN_ symbols clutters the namespace less, and the forthcoming merge
of asm/processor.h and asm/reg.h is going to remove the non-SPRN_
versions.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10 14:01:07 +10:00
Paul Mackerras
05f62a5c04 powerpc: Fix idle.c compile warning
This fixes a compile warning when using arch/ppc/kernel/idle.c
in a merged (ARCH=powerpc) kernel.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 13:29:24 +10:00
Paul Mackerras
c16ff7e448 powerpc: Define a _sdata symbol
This is needed by arch/powerpc/mm/mem.c now.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 13:28:31 +10:00
Paul Mackerras
8dad3f9257 powerpc: Merge traps.c a bit more
This reduces the differences between ppc32 and ppc64 in
arch/powerpc/kernel/traps.c a bit further.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 13:27:05 +10:00
Paul Mackerras
b3491269f5 powerpc: Use the merged of_device.c with ARCH=powerpc
Also compile btext.c with -fPIC; this was missed before.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 13:24:50 +10:00
Paul Mackerras
2e686bc3bf powerpc: Merge of_device.c and of_device.h
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 13:22:17 +10:00
Paul Mackerras
187a00679a powerpc: Remove 64-bit cpu support from ppc32.
These days there is no good reason to run a ppc32 kernel on a 64-bit
cpu, rather than a ppc64 kernel, so remove the config option and a
bunch of code (and ifdefs) from head.S.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 12:49:05 +10:00
Paul Mackerras
7c8c6b9776 powerpc: Merge lmb.c and make MM initialization use it.
This also creates merged versions of do_init_bootmem, paging_init
and mem_init and moves them to arch/powerpc/mm/mem.c.  It gets rid
of the mem_pieces stuff.

I made memory_limit a parameter to lmb_enforce_memory_limit rather
than a global referenced by that function.  This will require some
small changes to ppc64 if we want to continue building ARCH=ppc64
using the merged lmb.c.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 12:23:33 +10:00
Paul Mackerras
9b6b563c0d powerpc: Merge in the ppc64 version of the prom code.
This brings in the ppc64 version of prom_init.c, prom.c and btext.c
and makes them work for ppc32.  This also brings in the new calling
convention, where the first entry to the kernel (with r5 != 0) goes
to the prom_init code, which then restarts from the beginning (with
r5 == 0) after it has done its stuff.

For now this also brings in the ppc32 version of setup.c.  It also
merges lmb.h.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 12:06:20 +10:00
Paul Mackerras
b85a046af3 powerpc: Define 32/64 bit asm macros and use them in fpu.S
These macros help in writing assembly code that works for both ppc32
and ppc64.  With this we now have a common fpu.S.  This takes out
load_up_fpu from head_64.S.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-06 10:59:19 +10:00
Paul Mackerras
6ce52e6438 ppc32: remove obsolete klock_info definition
klock_info isn't used or referenced anywhere else in the kernel.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-04 14:30:07 +10:00
Paul Mackerras
dd8cad6be2 ppc32: export a few more things where they are defined
... and remove the exports from ppc_ksyms.c.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-04 14:28:29 +10:00
Paul Mackerras
292dcc86dd Merge rsync://ozlabs.org/sfr-git/for-paulus/ 2005-10-02 11:12:43 +10:00
Stephen Rothwell
eeb2d21806 powerpc: make iSeries boot
Now that we use the device tree, it helps to build it in.
It helps to links the kernel at the correct address.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-01 18:52:26 +10:00
Stephen Rothwell
cabb558714 powerpc: make iSeries build
Merge vmlinux.lds.S.
Also remove arch/powerpc/kernel/vmlinux.lds which is a
generated file.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-01 18:52:10 +10:00
Stephen Rothwell
bd142b70a6 ppc64: simplify the build a little
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-01 18:51:12 +10:00
Stephen Rothwell
dc1c1ca3dc powerpc: merge idle_power4.S and trapc.s
Use idle_power4.S from ppc64 as we are not going to support
32 bit power4 in the merged tree.

Merge ppc64 traps.c into powerpc traps.c:
	use ppc64 versions of exception routine names
		(as they don't have StudlyCaps)
	make all the versions if die() have the same
		prototype

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-01 18:43:42 +10:00
Paul Mackerras
c0c0d996d0 powerpc: Get merged kernel to compile and run on 32-bit SMP powermac.
This updates the powermac SMP code to use the mpic driver instead of
the openpic driver and fixes the SMP-dependent context switch code.
We had a subtle bug where we were using interrupt numbers 256-259 for
IPIs, but ppc32 had NR_IRQS = 256.  Moved the IPIs down to use interrupt
numbers 252-255 instead.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-01 13:49:08 +10:00
Stephen Rothwell
d96024c688 powerpc: Move lparmap.c to powerpc/platforms
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-30 18:04:10 +10:00
Stephen Rothwell
ee400b63f3 powerpc: more cleanup of powerpc/kernel
Update head_64.S from arch/ppc64
Remove arc/ppc/kernel/fpu.S

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-30 18:04:06 +10:00
Stephen Rothwell
dcff1b170b powerpc: remove old vector.S files
Update old kernel/Makefiles to cope

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-30 18:04:03 +10:00
Stephen Rothwell
d1dead5c5f powerpc: merge asm-offsets.c
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-30 18:03:59 +10:00
Stephen Rothwell
b08567cb68 ppc64 iseries: move some iSeries include files
These files are only referenced from within
arch/powerpc/platforms/iseries, so move them there.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-30 18:03:56 +10:00
Paul Mackerras
ab11d1ea28 Merge by hand from Linus' tree.
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-09-29 13:13:36 +10:00
David Howells
664cceb009 [PATCH] Keys: Add possessor permissions to keys [try #3]
The attached patch adds extra permission grants to keys for the possessor of a
key in addition to the owner, group and other permissions bits. This makes
SUID binaries easier to support without going as far as labelling keys and key
targets using the LSM facilities.

This patch adds a second "pointer type" to key structures (struct key_ref *)
that can have the bottom bit of the address set to indicate the possession of
a key. This is propagated through searches from the keyring to the discovered
key. It has been made a separate type so that the compiler can spot attempts
to dereference a potentially incorrect pointer.

The "possession" attribute can't be attached to a key structure directly as
it's not an intrinsic property of a key.

Pointers to keys have been replaced with struct key_ref *'s wherever
possession information needs to be passed through.

This does assume that the bottom bit of the pointer will always be zero on
return from kmem_cache_alloc().

The key reference type has been made into a typedef so that at least it can be
located in the sources, even though it's basically a pointer to an undefined
type. I've also renamed the accessor functions to be more useful, and all
reference variables should now end in "_ref".

Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 09:10:47 -07:00
Paul Jackson
5134fc15b6 [PATCH] cpuset read past eof memory leak fix
Don't leak a page of memory if user reads a cpuset file past eof.

Signed-off-by: KUROSAWA Takahiro <kurosawa@valinux.co.jp>
Signed-off-by: Paul Jackson <pj@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 07:58:51 -07:00
Linus Torvalds
2dd3c1df95 Merge branch 'for-linus' from master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband 2005-09-28 07:47:55 -07:00
Alok N Kataria
5c38230087 [PATCH] kmalloc_node IRQ safety fix
In kmalloc_node we are checking if the allocation is for the same node when
interrupts are "on".  This may lead to an allocation on another node than
intended.

This patch just shifts the check for the current node in __cache_alloc_node
when interrupts are disabled.

Signed-off-by: Alok N Kataria <alokk@calsoftinc.com>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 07:46:42 -07:00
Benjamin Herrenschmidt
0f9578b70a [PATCH] ppc64: More hugepage fixes
My previous patch fixing invalidation of huge PTEs wasn't good enough, we
still had an issue if a PTE invalidation batch contained both small and
large pages.  This patch fixes this by making sure the batch is flushed if
the page size fed to it changes.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 07:46:42 -07:00
Alasdair G Kergon
485ef69ede [PATCH] device-mapper: Fix queue_if_no_path initialisation
When creating a multipath device, if the queue_if_no_path parameter is
specified it gets ignored.

While the queue_if_no_path variable is correctly set to 1, the
saved_queue_if_no_path gets set to 0.  When the device is subsequently made
live (resumed), the saved value (0) always overwrites the live value (1) so
the option *always* gets turned off.

The fix adds a parameter to the queue_if_no_path() function to indicate
whether the previous value should be preserved or not - if not, as when the
device is being set up, the saved value is set to the new value (1).

Signed-Off-By: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 07:46:42 -07:00
goggin, edward
269fd2a6f8 [PATCH] device-mapper: Trigger an event when a table is deleted
If anything is waiting on a device's table when the device is removed, we
must first wake it up so it will release its reference.  Otherwise the
table's reference count will not drop to zero and the table will not get
removed.

Signed-Off-By: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 07:46:42 -07:00
Rafael J. Wysocki
0f7347c20c [PATCH] swsusp: avoid problems if there are too many pages to save
The following patch makes swsusp avoid problems during resume if there are
too many pages to save on suspend.  It adds a constant that allows us to
verify if we are going to save too many pages and implements the check
(this is done as early as we can tell that the check will trigger, which is
in swsusp_alloc()).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 07:46:41 -07:00
Benjamin Herrenschmidt
f65a4d10c8 [PATCH] orinoco: Fix flood of kernel log with stupid WE warnings
Latest wireless extensions moved a field from netdev -> wireless_handlers.
The WE core will now printk a warning on every call to get_wireless_stats()
on a driver that still uses the old field.  This patch fixes orinoco.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 07:46:41 -07:00
Anton Blanchard
b3ca809351 [PATCH] ppc64: Add missing barrier() in kexec code
Mikey and I were testing kexec and hit a lockup.  It turns out gcc 4.0
optimises the kexec_prepare_cpus loop so we avoid reloading paca.hw_cpu_id.
 A gcc barrier() fixes the problem.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-28 07:46:41 -07:00