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Commit Graph

2110 Commits

Author SHA1 Message Date
Andy Fleming
c2882bb12c [POWERPC] 85xx: Add support for the 8568 MDS board
Add support for the MPC8568 MDS reference board

Signed-off-by: Andrew Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-13 12:36:23 -06:00
Kumar Gala
54c66f6d78 Merge branch 'master' into 85xx 2007-02-12 23:57:21 -06:00
Benjamin Herrenschmidt
17e0e27020 [POWERPC] spufs: Fix bitrot of the SPU mmap facility
It looks like we've had some serious bitrot there mostly due to tracking
of address_space's of mmap'ed files getting out of sync with the actual
mmap code. The mfc, mss and psmap were not tracked properly and thus
not invalidated on context switches (oops !)

I also removed the various file->f_mapping = inode->i_mapping;
assignments that were done in the other open() routines since that
is already done for us by __dentry_open.

One improvement we might want to do later is to assign the various
ctx-> fields at mmap time instead of file open/close time so that we
don't call unmap_mapping_range() on thing that have not been mmap'ed

Finally, I added some smp_wmb's after assigning the ctx-> fields to make
sure they are visible to other CPUs. I don't think this is really
necessary as I suspect locking in the fs layer will make that happen
anyway but better safe than sorry.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:54 +11:00
Benjamin Herrenschmidt
44430e0d39 [POWERPC] powerpc: Remove SPU struct pages for PS3
Struct page are no longer needed for SPUs, so let's not create them
on PS3 anymore.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:54 +11:00
Benjamin Herrenschmidt
78bde53e35 [POWERPC] spufs: remove need for struct page for SPEs
This patch removes the need for struct page for SPE local store
and registers from spufs. It also makes the locking much more
obvious and no longer relying on the truncate logic black magic
for protecting against races between unmap_mapping_range() and
new pages faulted in. It does so by switching to a nopfn() handler
and using the new vm_insert_pfn() to setup the PTEs itself while
holding a lock on the SPE.

The nice thing is that this patch actually removes a lot more code
than it adds :-)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:53 +11:00
Sylvain Munaut
9724b86f07 [POWERPC] Small cleanup of EFIKA platform
The efika platform used three files efika-pci.c efika-setup.c and
a 2 line efika.h to link the two. The total of code in those is
really not much and therefore, I think they're better merged
in a single file.

There is absolutely _no_code_change_ at all, just merged the files.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:53 +11:00
Sylvain Munaut
46e4cf6c14 [POWERPC] Fix unbalanced of_node_{get,put} in efika-setup.c
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:53 +11:00
Sylvain Munaut
82a03b9227 [POWERPC] Use common 52xx of_platform probe code for EFIKA
Now that the device tree has the good properties, we can
remove all the efika_init code by a single call to common code.

While we're modifying that file, a few whitespaces/alignement/typo
fixes are made (nothing significant).

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:53 +11:00
Sylvain Munaut
b6a591b2c5 [POWERPC] Restore 'proper' link order in platform
The 52xx was put before CHRP to allow EFIKA to be recognized
properly. Now the efika tree is fixed up in prom_init so
no need for this ugly hack. So we restore the 'normal'
order.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:53 +11:00
Sylvain Munaut
88fd2a9d68 [POWERPC] Add device tree fixups for the EFIKA
We make the efika device tree compliant with the defined bindings
(at least compliant enough). This is mostly done by mangling
the device_type and compatible properties, but also adding
some missing bits.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:53 +11:00
Grant Likely
05cbbc692f [POWERPC] mpc5200 device tree bindings refinement
Much needed refinement of mpc5200 device tree binding specifications.

Short list:
- drop mpc52xx designator; only two supported chips exist, 5200 and 5200b.
  It's premature to refer to them as '52xx'.
- Specify optional 'model' and 'revision' properties in the soc5200 node
- Specify reqiured 'cell-index' property to identify between multiple SOC
  devices of the same type.  (Useful for arbitrating shared register access)
- Specify optional 'port-number' property for adjusting the logical serial
  port assignments.
- Specify optional 'has-wdt' property for gpt0 node.
- Add system-frequency property to soc5200 node

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:53 +11:00
Grant Likely
e3aba81d15 [POWERPC] Fixup mp5200 drivers to match device tree changes
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:53 +11:00
Stephen Rothwell
40d244d69a [POWERPC] correct a prototype
This rids us of a warning.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:52 +11:00
Benjamin Herrenschmidt
7ac9a13717 [POWERPC] Fix vDSO page count calculation
The recent vDSO consolidation patches broke powerpc due to a mistake
in the definition of MAXPAGES constants. This fixes it by moving to
a dynamically allocated array of pages instead as I don't like much
hard coded size limits. Also move the vdso initialisation to an initcall
since it doesn't really need to be done -that- early.

Applogies for not catching the breakage earlier, Roland _did_ CC me on
his patches a while ago, I got busy with other things and forgot to test
them.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:52 +11:00
Olaf Hering
2d99c41f05 [POWERPC] Mark winbond IDE PCI resources with start 0 as unassigned
libata calls pci_request_regions to claim PCI BAR 0 - 5
pci_request_regions fails if one of the regions cant be claimed.
bar 5 has start == 0,  __request_resource will fail.

Tested on a p630 in SMP mode with pata_sl82c105

 00:03.1 IDE interface: Symphony Labs SL82c105 (rev 05) (prog-if 8f [Master SecP SecO PriP PriO])
         Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B-
         Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
         Interrupt: pin A routed to IRQ 86
         Region 0: I/O ports at 3fd3000f000 [size=8]
         Region 1: I/O ports at 3fd3000f010 [size=4]
         Region 2: I/O ports at 3fd3000f020 [size=8]
         Region 3: I/O ports at 3fd3000f030 [size=4]
         Region 4: I/O ports at 3fd3000f040 [size=16]
         Region 5: I/O ports at 3fd30000000 [size=16]
 00: ad 10 05 01 41 01 80 02 05 8f 01 01 08 48 80 00
 10: 01 f0 00 00 11 f0 00 00 21 f0 00 00 31 f0 00 00
 20: 41 f0 00 00 01 00 00 00 00 00 00 00 00 00 00 00
 30: 00 00 00 00 00 00 00 00 00 00 00 00 56 01 02 28
 40: b3 08 ff 00 09 09 00 00 09 09 00 00 09 09 00 00
 50: 09 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 70: 00 00 00 00 00 00 00 00 00 00 00 00 ff 00 00 00
 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

 name             "ide"
 linux,phandle    00d5cdc0 (14011840)
 assigned-addresses 81001910 00000000 0000f000 00000000 00000008 81001914
                  00000000 0000f010 00000000 00000004 81001918 00000000
                  0000f020 00000000 00000008 8100191c 00000000 0000f030
                  00000000 00000004 81001920 00000000 0000f040 00000000
                  00000010 81001924 00000000 00000000 00000000 00000010
 interrupts       00000003
 built-in
 #size-cells      00000000
 #address-cells   00000001
 device_type      "ide"
 reg              00001900 00000000 00000000 00000000 00000000
                  41001910 00000000 00000000 00000000 00000008
                  41001914 00000000 00000000 00000000 00000004
                  41001918 00000000 00000000 00000000 00000008
                  4100191c 00000000 00000000 00000000 00000004
                  41001920 00000000 00000000 00000000 00000010
                  41001924 00000000 00000000 00000000 00000010
 compatible       "pci10ad,105"
                  "pciclass,01018f"
 ibm,fw-slot-number 00000000
 fast-back-to-back
 devsel-speed     00000001
 max-latency      00000028 (40)
 min-grant        00000002
 class-code       0001018f (65935)
 revision-id      00000005
 device-id        00000105 (261)
 vendor-id        000010ad (4269)
 ibm,loc-code     "U0.1-P1/Q6"

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:52 +11:00
Akira Iguchi
cbca567ea5 [POWERPC] Celleb: improve MMU hashtable locking
Disabling IRQ is required only in invalidation.  This changes
"spin_lock_irqsave" to "spin_lock" in other ops.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 15:35:51 +11:00
David Gibson
1f1fec9458 [POWERPC] Remove ibm4{xx,4x}.h from arch/powerpc
ARCH=powerpc should not use the ghastly un-multiplatformable tangle of
includes that starts with asm-ppc/ibm4xx.h.  This patch removes a
compile-breaking include of it from head_44x.S.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-13 14:59:52 +11:00
Becky Bruce
8ce0a7df6e [POWERPC] 85xx: Don't write reserved values to MAS1[TSIZE]
Some of the current tlbwe instructions early on in head_fsl_booke.S take
advantage of unarchitected behavior that allows the writing of reserved
values to the TSIZE field.  This patch corrects that, as well as an error
where an uninitialized (by linux) value was written into a MAS register and
used for a tlbwe.

Correct this for both arch/ppc and arch/powerpc.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-12 21:32:38 -06:00
Kumar Gala
edacf6bb7e Merge branch 'master' into 85xx 2007-02-12 21:27:10 -06:00
Paul Mackerras
fe6af6faec Merge branch 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc 2007-02-13 13:28:00 +11:00
Arjan van de Ven
754661f143 [PATCH] mark struct inode_operations const 1
Many struct inode_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:46 -08:00
Arjan van de Ven
9c2e08c592 [PATCH] mark struct file_operations const 9
Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:46 -08:00
Arjan van de Ven
5dfe4c964a [PATCH] mark struct file_operations const 2
Many struct file_operations in the kernel can be "const".  Marking them const
moves these to the .rodata section, which avoids false sharing with potential
dirty data.  In addition it'll catch accidental writes at compile time to
these shared resources.

[akpm@osdl.org: sparc64 fix]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:44 -08:00
Geert Uytterhoeven
f59e5e8209 [PATCH] ps3: ps3av/fb defconfig updates
PS3: defconfig updates for ps3av and ps3fb

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:44 -08:00
Geert Uytterhoeven
36dff96b3b [PATCH] ps3: cleanup ps3fb before clearing HPTE
PS3: Cleanup the frame buffer device before clearing the HPTE mapping

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:44 -08:00
Geert Uytterhoeven
fbdb3e5be3 [PATCH] ps3: Preallocate bootmem memory for ps3fb
Preallocate bootmem memory for the PS3 frame buffer device, which needs a
large block of physically-contiguous memory. The size of this memory block is
configurable:
  - The config option CONFIG_FB_PS3_DEFAULT_SIZE_M allows to specify the
    default amount of memory (in MiB) allocated to the virtual frame buffer.
  - The early boot parameter `ps3fb=xxx' allows to override the default value.
    It will be rounded up to a multiple of 1 MiB, if needed.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: James Simmons <jsimmons@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:44 -08:00
Geert Uytterhoeven
11227fd192 [PATCH] ps3: AV Settings Driver
Add the PS3 AV Settings Driver.

The AV Settings driver is used to control Audio and Video settings.  It
communicates with the policy manager through the virtual uart.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: James Simmons <jsimmons@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:44 -08:00
Alon Bar-Lev
b8757b21f7 [PATCH] Dynamic kernel command-line: powerpc
Rename saved_command_line into boot_command_line.

Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12 09:48:38 -08:00
Kyle McMartin
d4d23add3a [PATCH] Common compat_sys_sysinfo
I noticed that almost all architectures implemented exactly the same
sys32_sysinfo...  except parisc, where a bug was to be found in handling of
the uptime.  So let's remove a whole whack of code for fun and profit.
Cribbed compat_sys_sysinfo from x86_64's implementation, since I figured it
would be the best tested.

This patch incorporates Arnd's suggestion of not using set_fs/get_fs, but
instead extracting out the common code from sys_sysinfo.

Cc: Christoph Hellwig <hch@infradead.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:32 -08:00
Alexey Dobriyan
b653d081c1 [PATCH] proc: remove useless (and buggy) ->nlink settings
Bug: pnx8550 code creates directory but resets ->nlink to 1.

create_proc_entry() et al will correctly set ->nlink for you.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Corey Minyard <minyard@acm.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Greg KH <greg@kroah.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:32 -08:00
Jean-Paul Saman
67d38229df [PATCH] disable init/initramfs.c: architectures
Update all arch/*/kernel/vmlinux.lds.S to not include space for initramfs
when CONFIG_BLK_DEV_INITRAMFS is not selected.  This saves another 4 kbytes
on most platfoms (some reserve PAGE_SIZE for initramfs).

Signed-off-by: Jean-Paul Saman <jean-paul.saman@nxp.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:25 -08:00
Christoph Lameter
5ac6da669e [PATCH] Set CONFIG_ZONE_DMA for arches with GENERIC_ISA_DMA
As Andi pointed out: CONFIG_GENERIC_ISA_DMA only disables the ISA DMA
channel management.  Other functionality may still expect GFP_DMA to
provide memory below 16M.  So we need to make sure that CONFIG_ZONE_DMA is
set independent of CONFIG_GENERIC_ISA_DMA.  Undo the modifications to
mm/Kconfig where we made ZONE_DMA dependent on GENERIC_ISA_DMA and set
theses explicitly in each arches Kconfig.

Reviews must occur for each arch in order to determine if ZONE_DMA can be
switched off.  It can only be switched off if we know that all devices
supported by a platform are capable of performing DMA transfers to all of
memory (Some arches already support this: uml, avr32, sh sh64, parisc and
IA64/Altix).

In order to switch ZONE_DMA off conditionally, one would have to establish
a scheme by which one can assure that no drivers are enabled that are only
capable of doing I/O to a part of memory, or one needs to provide an
alternate means of performing an allocation from a specific range of memory
(like provided by alloc_pages_range()) and insure that all drivers use that
call.  In that case the arches alloc_dma_coherent() may need to be modified
to call alloc_pages_range() instead of relying on GFP_DMA.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11 10:51:19 -08:00
Kumar Gala
8f68abbfd9 Merge branch '85xx' into for_paulus 2007-02-09 11:42:11 -06:00
Guennadi Liakhovetski
8500adc79b [POWERPC] Update to linkstation / kurobox support
Linkstation systems capable of running mainline kernels use u-boot as a
bootloader, so, specifying a suitable kernel command is not a problem.
Don't guess. Also extend linkstation_defconfig to support the linkstation HS
model with a IT8212 IDE controller and kuroboxHD/HD-HLAN linkstation
models with a tulip ethernet chip. The latter also require a slightly
different .dts file, which is also included with this patch.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-09 11:41:18 -06:00
Kumar Gala
b8583f6872 Merge branch '83xx' into for_paulus 2007-02-09 11:40:48 -06:00
Kumar Gala
49baa91d68 [POWERPC] 83xx: Updated and renamed MPC834x SYS to MPC834x MDS
The MPC834x SYS board has always been called the MPC834x MDS since its public
release.  Removed all references to SYS and replaced with MDS.  Additionally
renamed the .dts to match the defconfig (mpc834x_mds*).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-09 11:39:46 -06:00
Roland McGrath
c13e4ca247 [PATCH] powerpc vDSO: use install_special_mapping
This patch uses install_special_mapping for the powerpc vDSO setup,
consolidating duplicated code.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09 09:25:47 -08:00
Al Viro
f1fda89522 [PATCH] powerpc: celleb trivial endianness and iomem annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09 09:14:08 -08:00
Al Viro
9340b0d356 [PATCH] arch/powerpc trivial annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09 09:14:06 -08:00
Al Viro
9288f5c3f1 [PATCH] ps3: missing exports
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09 08:28:48 -08:00
Kumar Gala
27630bec94 [POWERPC] 85xx: Marked functions static
Marked a number of functions in 85xx board code as static.  Also, some minor
whitespace cleanup

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-09 09:30:45 -06:00
Kumar Gala
8dabba5d1a [POWERPC] Fix is_power_of_4(x) compile error
When building an 85xx kernel we get:

  CC      arch/powerpc/mm/pgtable_32.o
arch/powerpc/mm/pgtable_32.c: In function 'io_block_mapping':
arch/powerpc/mm/pgtable_32.c:330: error: expected identifier before '(' token
arch/powerpc/mm/pgtable_32.c:330: error: expected statement before ')' token

The is_power_of_2(x) fixup patch left an extra ')' on the is_power_of_4 macro.
There is a similiar issue on the arch/ppc side.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-09 09:30:05 -06:00
Timur Tabi
8f34f6cfa2 [POWERPC] QE: Rename ucc_slow_info.us_regs to ucc_slow_info.regs
Rename the 'us_regs' field of the ucc_slow_info structure in ucc_slow.h
to just 'regs'.  The equivalent field in the ucc_fast_info structure is
also called 'regs', so this patch makes them comparable, and makes the
code a little easier to read, because there already is a 'us_regs' in
another ucc_slow structure.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-08 17:20:16 -06:00
Linus Torvalds
21eb4fa170 Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc
* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (116 commits)
  [POWERPC] Add export of vgacon_remap_base
  [POWERPC] Remove bogus comment about page_is_ram
  [POWERPC] windfarm: don't die on suspend thread signal
  [POWERPC] Fix comment in kernel/irq.c
  [POWERPC] ppc: Fix booke watchdog initialization
  [POWERPC] PPC: Use ARRAY_SIZE macro when appropriate
  [POWERPC] Use ARRAY_SIZE macro when appropriate
  [POWERPC] Fix ppc64's writing to struct file_operations
  [POWERPC] ppc: use syslog macro for the printk log level
  [POWERPC] ppc: cs4218_tdm remove extra brace
  [POWERPC] Add mpc52xx/lite5200 PCI support
  [POWERPC] Only use H_BULK_REMOVE if the firmware supports it
  [POWERPC] Fixup error handling when emulating a floating point instruction
  [POWERPC] Enable interrupts if we are doing fp math emulation
  [POWERPC] Added kprobes support to ppc32
  [POWERPC] Make pSeries use the H_BULK_REMOVE hypervisor call
  [POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace
  [POWERPC] Fix performance monitor exception
  [POWERPC] Compile fixes for arch/powerpc dcr code
  [POWERPC] Maple: use mmio nvram
  ...
2007-02-08 10:04:20 -08:00
Kumar Gala
135637aa78 Merge branch 'master' into 83xx 2007-02-08 00:41:56 -06:00
Li Yang
97c5a20ae6 [POWERPC] 83xx: Add platform_device for USB DR peripheral driver
Add platform_device setup code for OTG/peripheral mode of 834x DR module.
It is needed for USB client driver to work.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-08 00:41:05 -06:00
Li Yang
c161698287 [POWERPC] 83xx: Add USB setup code for MPC8349E MDS-PB
Add board specific initialization code for USB to work in both MPH and DR
mode for MPC8349E MDS-PB board.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-08 00:40:56 -06:00
Li Yang
ea5b7a61b6 [POWERPC] 83xx: Added new dr_mode property for usb controller on 83xx
Added a new dr_mode property to describe what mode the DR controller is being
used in (host, device, OTG).  Updated the MPC8349E MDS dts with this new property.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-08 00:40:00 -06:00
Kim Phillips
fd9aeb8527 [POWERPC] 83xx: add the mpc8313erdb defconfig
Add the mpc8313erdb defconfig

Signed-off-by: Wilson Lo <Wilson.Lo@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-07 23:45:21 -06:00
Kim Phillips
b359049f27 [POWERPC] 83xx: Add base support for the MPC8313E RDB
Add support for the MPC8313E Reference Development Board (RDB).  The board
is a mini-ITX reference board with 128M DDR2, 8M flash, 32M NAND, USB, PCI,
gigabit ethernet, and serial.

Signed-off-by: Wilson Lo <Wilson.Lo@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-07 23:44:05 -06:00
Mathieu Desnoyers
d003e7a1a5 [POWERPC] Add export of vgacon_remap_base
The following macro :
include/asm-powerpc/vga.h:#define VGA_MAP_MEM(x,s) (x + vgacon_remap_base)
is used by drivers/video/console/vgacon.c which can be compiled as a module
(drivers/video/vga16fb.ko).

Therefore, vgacon_remap_base should be exported.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-08 16:08:47 +11:00
Johannes Berg
bcff4948c6 [POWERPC] Remove bogus comment about page_is_ram
arch/powerpc/mm/mem.c states that page_is_ram is called by the code that
implements /dev/mem, which isn't true.  Remove the comment.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-08 16:08:43 +11:00
Johannes Berg
92d4dda333 [POWERPC] Fix comment in kernel/irq.c
kernel/irq.c contains a comment that speaks of -1 and -2 as interrupt
numbers, but this is actually dependent on configuration options now.
Replace by NO_IRQ and NO_IRQ_ENABLED.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-08 16:08:35 +11:00
Ahmed S. Darwish
3839a59439 [POWERPC] Use ARRAY_SIZE macro when appropriate
Use ARRAY_SIZE macro already defined in linux/kernel.h

Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-08 16:08:18 +11:00
Stephen Rothwell
0524aad7b8 [POWERPC] Fix ppc64's writing to struct file_operations
In preparation for marking file_operations as const.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-08 15:29:22 +11:00
Grant Likely
f42963f864 [POWERPC] Add mpc52xx/lite5200 PCI support
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-08 15:29:22 +11:00
Paul Mackerras
d5112a4f31 Merge branch 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into for-2.6.21 2007-02-08 15:03:11 +11:00
Paul Mackerras
12e86f92fc [POWERPC] Only use H_BULK_REMOVE if the firmware supports it
The previous patch changing pSeries to use H_BULK_REMOVE broke the
JS20 blade, where the firmware doesn't support H_BULK_REMOVE.  This
adds a firmware check so that on machines that don't have H_BULK_REMOVE,
we just use the H_REMOVE call as before.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-08 15:02:35 +11:00
Linus Torvalds
78149df6d5 Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (41 commits)
  Revert "PCI: remove duplicate device id from ata_piix"
  msi: Make MSI useable more architectures
  msi: Kill the msi_desc array.
  msi: Remove attach_msi_entry.
  msi: Fix msi_remove_pci_irq_vectors.
  msi: Remove msi_lock.
  msi: Kill msi_lookup_irq
  MSI: Combine pci_(save|restore)_msi/msix_state
  MSI: Remove pci_scan_msi_device()
  MSI: Replace pci_msi_quirk with calls to pci_no_msi()
  PCI: remove duplicate device id from ipr
  PCI: remove duplicate device id from ata_piix
  PCI: power management: remove noise on non-manageable hw
  PCI: cleanup MSI code
  PCI: make isa_bridge Alpha-only
  PCI: remove quirk_sis_96x_compatible()
  PCI: Speed up the Intel SMBus unhiding quirk
  PCI Quirk: 1k I/O space IOBL_ADR fix on P64H2
  shpchp: delete trailing whitespace
  shpchp: remove DBG_XXX_ROUTINE
  ...
2007-02-07 19:23:44 -08:00
Michael Ellerman
0fcfdabbdb MSI: Remove pci_scan_msi_device()
pci_scan_msi_device() doesn't do anything anymore, so remove it.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07 15:50:07 -08:00
Geoff Levand
6a6c957eba USB: ps3 ohci bus glue
USB OHCI driver bus glue for the PS3 game console.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07 15:44:37 -08:00
Geoff Levand
ad75a41085 USB: ps3 ehci bus glue
USB EHCI driver bus glue for the PS3 game console.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07 15:44:35 -08:00
Kumar Gala
5fad293bcb [POWERPC] Fixup error handling when emulating a floating point instruction
When we do full FP emulation its possible that we need to post a SIGFPE based
on the results of the emulation.  The previous code ignored this case completely.

Additionally, the Soft_emulate_8xx case had two issues.  One, we should never
generate a SIGFPE since the code only does data movement.  Second, we were
interpreting the return codes incorrectly, it returns 0 on success, 1 on
illop and -EFAULT on a data access error.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-07 01:47:59 -06:00
Kumar Gala
04903a30a3 [POWERPC] Enable interrupts if we are doing fp math emulation
Anytime we are emulating an instruction we are going to be doing some form of
get_user() to get the instruction image to decode.  Since get_user() might
sleep we need to ensure we have interrupts enabled or we might see something
like:

Debug: sleeping function called from invalid context at arch/powerpc/kernel/traps.c:697
in_atomic():0, irqs_disabled():1
Call Trace:
[D6023EB0] [C0007F84] show_stack+0x58/0x174 (unreliable)
[D6023EE0] [C0022C34] __might_sleep+0xbc/0xd0
[D6023EF0] [C000D158] program_check_exception+0x1d8/0x4fc
[D6023F40] [C000E744] ret_from_except_full+0x0/0x4c
--- Exception: 700 at 0x102a7100
    LR = 0xdb9ef04

However, we want to ensure that interrupts are disabled when handling a trap
exception that might be used for a kernel breakpoint.  This is why ProgramCheck
is marked as EXC_XFER_STD instead of EXC_XFER_EE.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-07 01:13:32 -06:00
Kumar Gala
8209003547 [POWERPC] Added kprobes support to ppc32
Added kprobes to ppc32 platforms that have use single_step_exception.  This
excludes 4xx and anything Book-E since their debug mechanisms for single stepping
are completely different.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-02-06 22:55:19 -06:00
Paul Mackerras
8423200553 Merge branch 'linux-2.6' 2007-02-07 14:05:13 +11:00
Paul Mackerras
f03e64f2ca [POWERPC] Make pSeries use the H_BULK_REMOVE hypervisor call
H_BULK_REMOVE lets us remove 4 entries from the MMU hash table with one
hypervisor call.  This uses it in pSeries_lpar_hpte_invalidate so we
can tear down mappings with fewer hypervisor calls.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
Paul Mackerras
e56a6e20f3 [POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace
Some instruction tracing tools use the RI (recoverable interrupt) bit
in the MSR to indicate when it's safe to single-step.  Currently we
clear RI after restoring r13 when returning to userspace.  However,
if we single-step past the point where r13 is restored, we'll corrupt
r13 in the exception entry code and not restore it.  This moves the
clearing of RI to just before r13 is restored so this doesn't happen.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
Livio Soares
449d846dbc [POWERPC] Fix performance monitor exception
To the issue: some point during 2.6.20 development, Paul Mackerras
introduced the "lazy IRQ  disabling" patch (very cool work,  BTW).
In that patch, the performance monitor unit exception was marked as
"maskable", in the sense that if interrupts were soft-disabled, that
exception could be ignored.  This broke my PowerPC profiling code.
The symptom that I see is that a varying number of interrupts
(from 0 to $n$, typically closer to 0) get delivered, when, in
reality, it should always be very close to $n$.

The issue stems from the way masking is being done.   Masking in
this fashion seems to  work well with the decrementer and external
interrupts, because they are raised again until "really"  handled.
For the PMU, however, this does not apply (at least on my Xserver
machine with a 970FX processor).  If the PMU exception is not handled,
it will _not_ be re-raised (at least on my machine).  The documentation
states that the PMXE bit in MMCR0 is set to 0 when the PMU exception
is raised.  However, software must re-set the bit to re-enable PMU
exceptions.  If the exception is ignored (as currently) not only is
that interrupt lost, but because software does not re-set PMXE, the
PMU registers are "frozen" forever.

[This patch means that performance monitor exceptions are taken and
handled even if irqs are off, as long as some other interrupt hasn't
come along and caused interrupts to be hard-disabled.  In this sense
the PMU exception becomes like an NMI.  The oprofile code for most
powerpc processors does nothing that is unsafe in an NMI context, but
the Cell oprofile code does a spin_lock_irqsave.  However, that turns
out to be OK because Cell doesn't actually use the performance
monitor exception; performance monitor interrupts come in as a
regular interrupt on Cell, so will be disabled when irqs are off.
 -- paulus.]

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
David Gibson
a2c70211fa [POWERPC] Compile fixes for arch/powerpc dcr code
The new dcr code does not currently compile when configured for native
DCR access on ARCH=powerpc.  This patch fixes the problems.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
Nathan Lynch
4297c9869b [POWERPC] Maple: use mmio nvram
Some systems supported by the maple platform (e.g. JS2x blades running
SLOF) are able to use the mmio_nvram backend for reading and writing
nvram.  This is an improvement over the current situation -- no nvram
access from userspace at all.

Select MMIO_NVRAM for the maple platform.

Initialize the mmio_nvram backend from maple setup code.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:23 +11:00
Olof Johansson
721e0c9037 [POWERPC] pasemi: defconfig
Base pasemi defconfig. Nothing special, just the native drivers plus
common PCI-express/PCI cards.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
31c56d820e [POWERPC] pasemi: iommu support
I/O TLB support for PA6T-1682M.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
f9fba5b72d [POWERPC] pasemi: Configure DMA controller interrupts
The DMA controller on PWRficient is somewhat special -- has a PCI header
so it looks like it's on the root PCI (-Express) root bus, but it uses
more than the default number of interrupts (and they are hardwired).

We need to wire up all interrupts for the DMA controller. The generic
IRQ code will only map the primary interrupt from the PCI header (128),
so add 129->211 by hand.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
c388cfebbf [POWERPC] pasemi: SMP timebase sync
Timebase update is simple on PA6T, since global updates can be done from
one core by writing to an SPR.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
f620be99e9 [POWERPC] pasemi: Implement restart
Implement reset on platforms/pasemi. Default is just to reset the
cpu using the SDC registers.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
1199919b69 [POWERPC] pasemi: Idle loops
Powersave support on PA6T. Right now it only uses 'doze' mode, and
will default to no savings (spin).

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
bfed9d32d9 [POWERPC] pasemi: Machine check handler
Print out decoded machine check information on PA6T.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Olof Johansson
39c870d5b5 [POWERPC] pasemi: UART udbg support
Early debug output for PA Semi UART. Uses the 2.05 CI real mode ops.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Pavel Roskin
a1fdf6940a [POWERPC] Assign all PCI busses on G3 Blue & White
G3 Blue & White is misconfigured by default so that CardBus controllers
in PCI slots don't work.  The PCI bridge is programmed to only allow
access to bus 1 but not higher busses.

The patch forces the PCI busses to be reassigned if a Grackle controller
is found and the machine identifies itself as "PowerMac1,1"

Signed-off-by: Pavel Roskin <proski@gnu.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Ishizaki Kou
6e47a0f382 [POWERPC] Celleb: add celleb_defconfig
This patch creates defconfig file for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:22 +11:00
Ishizaki Kou
c347b7989e [POWERPC] Celleb: basic support
This patch adds base support for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
e107931956 [POWERPC] Celleb: support spu priv1 ops
SPU support routines for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
c9868fe0e0 [POWERPC] Celleb: consolidate spu management ops
Spu management ops in arch/platforms/cell/spu_priv1_mmio.h can be used
commonly in of based platform. This patch separates spu management ops
from native cell code and uses on celleb platform.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
d7480a9fea [POWERPC] Celleb: support udbg
This patch adds udbg support for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
fe4a0cf1c2 [POWERPC] Celleb: htab routines
Adds htab routines for Celleb platform.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
97a9b58409 [POWERPC] Celleb: support iommu
This patch creates Celleb platform dependent file to support iommu.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
7163c7c9d2 [POWERPC] Celleb: setup usb host controller in SCC
USB host controller in SCC requires enable sequence. It should be done
before USB host drivers start.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
32f39b055f [POWERPC] Celleb: support interrupts
This patch creates Celleb platform dependent files to support interrupts.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Ishizaki Kou
b8a590c496 [POWERPC] Celleb: interfaces to the hypervisor
This patch creates Celleb platform dependent files which add
interfaces to call hypervisor.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:21 +11:00
Jiri Kosina
c23ef29c1e [POWERPC] powermac: local_irq_disable() is redundant after local_irq_save()
arch/powerpc/platforms/powermac/smp.c::smp_core99_kick_cpu() contains
local_irq_disable() call after local_irq_save(). This looks
redundant.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Jiri Kosina
f79ce995d0 [POWERPC] 86xx: local_irq_disable() is redundant after local_irq_save()
arch/powerpc/platforms/86xx/mpc86xx_smp.c::smp_86xx_kick_cpu() contains
local_irq_disable() call after local_irq_save(). This looks
redundant.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Vitaly Bordug
c4cbfd64f9 [POWERPC] mpc8272ads: defconfig
Default config file for mpc8272ads (powerpc port).Though relevant bits went
in, it is required to keep proper default configuration for the target,
which seems to be missed initially.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Vitaly Bordug
5427828e83 [POWERPC] Fix kernel build errors for mpc8272ads and mpc8560ads
Recent update of asm-powerpc/io.h caused cpm-related stuff to break in the
current kernel. Current patch fixes it, as well as other inconsistencies
expressed, that do not permit targets from working properly:

- Updated dts with a chosen node with interrupt controller,
- fixed messed device IDs among CPM2 SoC devices,
- corrected odd header name and fixed type in defines,
- Added 82xx subdir to the powerpc/platforms Makefile, missed during
  initial commit,
- new solely-powerpc header file for 8260 family (was using one from
  arch/ppc, this one cleaned up from the extra stuff), in fact for now
  a placeholder to get the board-specific includes for stuff not yet
  capable to live with devicetree peeks only
- Fixed couple of misprints in reference mpc8272 dts.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Vitaly Bordug
73844ecbaa [POWERPC] cpm2: CPM2 interrupt controller fix
This contains important fixes for the CPM2 PIC code. Eliminated
CPM_IRQ_OFFSET, pulling the respective interrupt numbers from the interrupt
mapping. Updated devicetree files to reflect that. Changed direct
IC-related IO accesses to the IO accessors. Fixed all the sense values to
keep coherency with ipic. In the current code, CPM2 stuff will have no IRQs
and hence could be hardly usable.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Geoff Levand
c19cdcb1b8 [POWERPC] PS3: Enable USB mass storage
Update ps3_defconfig to enable USB mass storage and VFAT.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Geoff Levand
35063bb2ea [POWERPC] PS3: Fix DMA scatter-gather
Add the missing pieces to support DMA scatter-gather on the PS3 system bus.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:20 +11:00
Geoff Levand
2a08ea69a3 [POWERPC] PS3: Move system bus to platform directory
Move the PS3 system bus routines from drivers/ps3 to
arch/powerpc/platforms/ps3.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Robert P. J. Day
63c2f782e8 [POWERPC] Add "is_power_of_2" checking to log2.h.
Add the inline function "is_power_of_2()" to log2.h, where the value
zero is *not* considered to be a power of two.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Olof Johansson
7df2457db8 [POWERPC] MPIC: support more than 256 sources
Allow more than the default 256 MPIC sources. Allocates a new flag
(MPIC_LARGE_VECTORS) to be used by platform code when instantiating
the mpic.

I picked 11 bits worth right now since it would cover the number of
sources on any hardware I have seen. It can always be increased later
if needed.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Olof Johansson
6529c13dfe [POWERPC] PA6T PMC support
Support for PA6T-style PMC registers.

PMCs are completely implementation-dependent on PPC, and PA6T numbers them
differently from the IBM model.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Olof Johansson
1bd2e5ae18 [POWERPC] Add PMC type to cputable
Add cputable entries for which type of PMC implementation the processor
has.

I've only filled in the current 64-bit processors, the unfilled default
value will have same behaviour as before so it can be done over time
as needed.

Also tidy up the dummy_perf implementation a bit, aggregating it into
one function with ifdefs instead of several.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Olof Johansson
c69b767a2c [POWERPC] Oprofile cleanup
Clean up the ctr_read/write a bit. It's currently defined in the
include but only used in one C file each. The only exception is the
classic version, so keep that in the include and define in the C file
as appropriate.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Timur Tabi
4942bd80e8 [POWERPC] Fix array indexing error in rheap grow()
The grow() function in the rheap library allocates a larger array of blocks,
copies the contents of the old blocks array to the newly allocated array and
fixes the list_head pointers after the copy.  At the end, the new blocks must
be enqueued to the empty_list of the rh_info_t structure.  This patch fixes
a bug where the code was indexing past the end of the array when enqueueing
blocks.  The UCC ethernet driver, which uses the rheap allocator, experiences
kernel panics because of this bug.

Signed-off-by: Ionut Nicu <ionut.nicu@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Geoff Levand
5f3162f066 [POWERPC] ps3: ps3_defconfig updates
Updates for ps3_defconfig.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:19 +11:00
Geert Uytterhoeven
098e274427 [POWERPC] ps3: get av_multi_out params
Allow the PS3 AV settings driver to access the default video mode stored in
the OS area.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
66b44954f8 [POWERPC] ps3: get firmware version
Add a new routine ps3_get_firmware_version() and use it to output the firmware
version to dmesg.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
73d976b339 [POWERPC] ps3: remove cpuinfo
Remove the unneded routine ps3_show_cpuinfo().  The common platform code now
prints the same information.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
577157659f [POWERPC] ps3: fix interrupt bmp
Add a comment and a preprocessor macro to help clearify the alignment
needs of the PS3 interrupt bitmap.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geert Uytterhoeven
b1eeb38e45 [POWERPC] ps3: add interrupt alloc for outlets
PS3 interrupt core update:
  - Add ps3_alloc_irq() and ps3_free_irq(), to allocate a virtual interrupt
    number for an interrupt outlet, which is needed by the PS3 GPU frame
    buffer device and audio drivers

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
861be32ce7 [POWERPC] ps3: bind interrupt to cpu
Change the PS3 irq allocation routines to take an argument indicating which
cpu (processor thread) the interrupt should be serviced on.

The current system configuration favors device interrupts that are serviced
on cpu0, so that is used as the default.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Benjamin Herrenschmidt
9cf9e19667 [POWERPC] ps3: cleanup interrupt bmp routines
Change the PS3 interrupt bitmask routines to be lockless.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
407e24a0c7 [POWERPC] ps3: smp interrupt fixes
PS3 fixups for interrups on SMP.

Fixes the alignment of the interrupt status bitmap, changes the hypervisor
interrupt calls to the '_ext' versions that take an explicit processor
thread ID.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
9633ac8d17 [POWERPC] ps3: rename interrupt symbols
Rename some PS3 interrupt symbols to avoid name clashes and aid debugging.
No change to code.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geoff Levand
a8229a9e52 [POWERPC] ps3: fix struct alignment attributes
Remove incorrect alignment attributes in PS3 platform code for
struct spe_shadow, struct os_area_header, and struct os_area_params.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:18 +11:00
Geert Uytterhoeven
6c7be7d385 [POWERPC] ps3: repository storage support
Handle storage-related repository data:
  - Add missing implementations of ps3_repository_read_stor_*() repository
    accessors.
  - Dump storage properties in debug mode
  - Add PS3_DEV_TYPE_STOR_{DISK,ROM,FLASH} device types (which are identical to
    the corresponding SCSI device types) to enum ps3_dev_type

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Geoff Levand
eebb81c13a [POWERPC] ps3: repository misc fixes
Various fixes for the PS3 repository code:

  - Sync signatures of function prototypes and implementations (enum vs.
    unsigned int)
  - Correct references to `regions' as `registers':
      o Correct enum ps3_region_type as enum ps3_reg_type,
      o Correct PS3_REGION_TYPE_* as PS3_REG_TYPE_*,
      o Correct ps3_repository_find_region() as ps3_repository_find_reg().
  - Correct function name in pr_debug() call
  - Minor error condition improvements.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Linas Vepstas
25c4a46f0e [POWERPC] pSeries: EEH improperly enabled for some Power4 systems
It appears that EEH is improperly enabled for some Power4 systems.
On these systems, the ibm,set-eeh-option returns a value of success
even when EEH is not supported on the given node. Thus, an explicit
check for support is required.

During boot, on power4, without this patch, one sees messages
similar to:

EEH: event on unsupported device, rc=0 dn=/pci@400000000110/IBM,sp@1
EEH: event on unsupported device, rc=0 dn=/pci@400000000110/pci@2
EEH: event on unsupported device, rc=0 dn=/pci@400000000110/pci@2,2
etc.

The patch makes these go away.

Without this patch, EEH recovery does seem to work correctly for
at least some devices (I tested ethernet e1000), but fails to
recover others (the Emulex LightPulse LPFC, most notably).
Off the top of my head, I don't remember why some devices are
affected, but not others.

The PAPR indicates that the correct way to test for EEH is as
done in this patch; its not clear to me if this was in the PAPR
all along, or recently added; if it was there all along, its not
clear to me why this hadn't been fixed long ago. I suspect only
certain firmware levels are affected.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Nathan Lynch
59eaef9dae [POWERPC] Maple: don't override bus-range supplied by firmware
This workaround was copy-pasted from the powermac code.  It's not
necessary for maple.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Vitaly Bordug
29f1530f19 [POWERPC] Add mpc866ads board-specific bits to arch/powerpc
This add support of the Freescale mpc86xads reference board to
arch/powerpc. Supported SMC1 and SMC2 (UART and serial console), FEC
100Mbps Ethernet, SCC1 Ethernet (10Mbps hdx)

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Vitaly Bordug
df34403dca [POWERPC] 8xx: Add mpc885ads support and common mpc8xx files
This adds the core 8xx stuff and specifically mpc885ads board-specific
bits to arch/powerpc. Respective Kconfig has been cleaned up from the stuff
not yet ported over to avoid confusion. Updated and cleaned version.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Vitaly Bordug
f2a0bd3753 [POWERPC] 8xx: powerpc port of core CPM PIC
This covers common CPM access functions, CPM interrupt controller code,
micropatch and a few compatibility things to kee the same driver base
working with arch/ppc. This version is refined with all the comments
(mostly PIC-related) addressed.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Vitaly Bordug
88bdc6f061 [POWERPC] 8xx: platform related changes to the fsl_soc
Added 8xx SoC peripherials: fec for Ethernet and smc for UARTs.
Ordinary routines to extract values from the device tree and insert
respective platform devices

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:03:17 +11:00
Vitaly Bordug
5902ebce22 [POWERPC] 8xx: generic 8xx code arch/powerpc port
Including support for non-coherent cache, some mm-related things +
relevant field in Kconfig and Makefiles. Also included rheap.o compilation
if 8xx is defined.

Non-coherent mapping were refined and renamed according to Cristoph
Hellwig. Orphaned functions were cleaned up.

[Also removed arch/ppc/kernel/dma-mapping.c, because otherwise
compiling with ARCH=ppc for a non DMA-cache-coherent platform ends up
with two copies of __dma_alloc_coherent etc.
 -- paulus.]

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 14:01:02 +11:00
Vitaly Bordug
dbbb06b7f6 [POWERPC] 8xx: platform specific mmu updates
This is just a straight port of the same done in arch/ppc
by Marcelo Tosatti. One used to be
[PATCH] ppc32 8xx: update_mmu_cache() needs unconditional tlbie,
commit eb07d964b4

In a nutshell, the board is nearly stuck without this, yet without any
visible failure - being just very slow.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07 12:00:32 +11:00
Kim Phillips
18a1e4c3ee [POWERPC] 83xx: Add the mpc8323emds.dts
Add the mpc8323emds device tree source (dts)

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-30 16:23:58 -06:00
Kim Phillips
a33a9641c9 [POWERPC] 83xx: Add the mpc832xemds defconfig
The defconfig for the 8323EMDS is identical to the 8360E MDS defconfig,
except CONFIG_MATH_EMULATION is set, since the 8323 doesn't have a FPU.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-30 16:23:39 -06:00
Kumar Gala
304df8f7ef [POWERPC] Enable stack debug features on ppc32
Enable stack overflow checking (DEBUG_STACKOVERFLOW) and stack usage
(DEBUG_STACK_USAGE) on ppc32.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-30 00:45:56 -06:00
Kumar Gala
48809a9308 Merge branch '83xx' into for_paulus 2007-01-30 00:38:11 -06:00
Li Yang
3b6eb6af5f [POWERPC] 83xx: Fix compiler warnings on 836x and 832x
Some prototypes are separated from of_device.h into of_platform.h.  Add
the new include to fix warning.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-30 00:36:57 -06:00
Linus Torvalds
5263bf65d6 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] Fix sys_pciconfig_iobase bus matching
  [POWERPC] PS3: add not complete comment to kconfig
  [POWERPC] ps3_free_io_irq: Fix inverted error check
  [POWERPC] PS3: Fix uniprocessor kernel build
2007-01-28 12:45:22 -08:00
Benjamin Herrenschmidt
545da94f92 [POWERPC] Fix sys_pciconfig_iobase bus matching
A stupid bug has been plaguing the sys_pciconfig_iobase on ppc64. It wasn't
noticed until recently as it seems to not affect G5s but it's been causing
problems running X servers on some other machines recently. The bus number
matching was bogus.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-28 09:57:09 +11:00
Geoff Levand
05916eec9f [POWERPC] PS3: add not complete comment to kconfig
Add a comment to the PS3 config option to inform users that the current
implementation is not yet complete.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-28 09:57:07 +11:00
Linus Torvalds
08eacc3157 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  Fix Maple PATA IRQ assignment.
  ahci: use 0x80 as wait stat value instead of 0xff
  sata_via: style clean up, no indirect method call in LLD
  ahci: fix endianness in spurious interrupt message
  libata-sff: Don't call bmdma_stop on non DMA capable controllers
  libata: implement ATA_FLAG_IGN_SIMPLEX and use it in sata_uli
  ahci: improve and limit spurious interrupt messages, take#3
  sata_via: don't diddle with ATA_NIEN in ->freeze
  libata: set_mode, Fix the FIXME
  libata hpt3xn: Hopefully sort out the DPLL logic versus the vendor code
  libata cmd64x: whack into a shape that looks like the documentation
2007-01-26 14:45:18 -08:00
David Woodhouse
8cdf92a98f Fix Maple PATA IRQ assignment.
On the Maple board, the AMD8111 IDE is in legacy mode... except that it
appears on IRQ 20 instead of IRQ 15. For drivers/ide this was handled by
the architecture's "pci_get_legacy_ide_irq()" function, but in libata we
just hard-code the numbers 14 and 15.

This patch provides asm-powerpc/libata-portmap.h which maps the IRQ as
appropriate, having added a pci_dev argument to the
ATA_{PRIM,SECOND}ARY_IRQ macros.

There's probably a better way to do this -- especially if we observe
that the _only_ case in which this seemingly-generic
"pci_get_legacy_ide_irq()" function returns anything other than 14 and
15 for primary and secondary respectively is the case of the AMD8111 on
the Maple board -- couldn't we handle that with a special case in the
pata_amd driver, or perhaps with a PCI quirk for Maple to switch it into
native mode during early boot and assign resources properly?

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-26 17:27:40 -05:00
Roland McGrath
3a0cfadb42 [PATCH] powerpc vDSO: use VM_ALWAYSDUMP
This patch fixes core dumps to include the vDSO vma, which is left out now.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-26 13:50:58 -08:00
Kumar Gala
8943212c97 [POWERPC] Remove fastcall function attribute
fastcall is an x86 specific function attribute and has no business in ppc code

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-26 01:52:27 -06:00
Kumar Gala
126186a055 [POWERPC] 83xx: Return a point to the struct ipic from ipic_init()
It's useful to have access to struct ipic handle that just got created
in ipic_init().

For example, if we want to setup an external IRQ with out
a device node we need access ipic->irqhost to create the virtual to HW
IRQ mapping and to set the IRQ sense.  With this we can mimic the old
sense array concept that existed in arch/ppc.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-26 01:45:32 -06:00
Kumar Gala
e60bd7f14d [POWERPC] 83xx: Make platform *_init_IRQ() static
Make the various 83xx *_init_IRQ() functions static

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-26 00:41:57 -06:00
Kumar Gala
c75f902b93 [POWERPC] 83xx: Don't call ioremap in the reset function
It's possibly that we get an reset requestion when interrupts are disabled.
(For example an oops in an interrupt handler).  Therefor, we can't call
ioremap in the reset function.  Moving the ioremap of the registers we
need access to an arch_initcall helps the problem.

However we still have a window between boot and the arch_initcall in
which the register pointer will not be setup and thus we spin if the reset
function is called.  If one needs to ensure even this case is covered, look
at use of the watchdog provided on 83xx to reset the processor.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-26 00:37:11 -06:00
Kumar Gala
4d52719a76 [POWERPC] 83xx: Fix Kconfig to only enable FP math emulation for the MPC832x
Updated MATH_EMULATION depends to be on PPC_MPC832x instead of PPC_83xx.  Only
the the MPC832x has no floating point unit in the core.  Updated the other
83xx defconfigs that got math emulation turned on incorrectly.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-01-26 00:23:34 -06:00
Ishizaki Kou
8b629a1f01 [POWERPC] Celleb: setup sio in SCC
This patch setup serial interfaces in SCC to work with serial_txx9
driver.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:36:02 +11:00
Ishizaki Kou
551a3d8785 [POWERPC] Celleb: Support PCI bus and base of I/O
This patch includes support for pci buses, base of Celleb specific
devices, and etc. It works on of_platform bus.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:35:45 +11:00
Ishizaki Kou
983e3f6027 [POWERPC] Celleb: Cell SCC definitions
Adds Cell SCC(Super Companion Chip) definitions.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:35:32 +11:00
Ishizaki Kou
ca58b8eb93 [POWERPC] Celleb: hypervisor call numbers
This patch creates Celleb platform dependent file to define Beat
hypervisor call numbers.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:59 +11:00
Ishizaki Kou
acc900ef5b [POWERPC] Add IRQ remapping hook
This patch adds irq remapping hook. On interrupt mechanism on Beat,
when an irq outlet which has an id which is formerly used is created,
remapping the irq is required.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:59 +11:00
Ishizaki Kou
ef66f79675 [POWERPC] Fix oprofile support on Cell LPAR
Op_model_cell supports native Cell. By returning -EINVAL, oprofile
uses timer interrupt on Cell LPAR.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:59 +11:00
Ishizaki Kou
d649bd7b76 [POWERPC] TLB insertion cleanup
This patch changes handling return value of ppc_md.hpte_insert() into
the same way as __hash_page_*().

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:59 +11:00
Ishizaki Kou
3650cfe2e5 [POWERPC] spufs: Add SPU register lock
spu->register_lock should be held before accessing registers.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:59 +11:00
Adrian Bunk
c53653130f [POWERPC] Remove the broken Gemini support
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:58 +11:00
David Woodhouse
cfcd1705b6 [POWERPC] Mask 32-bit system call arguments to 32 bits on PPC64 in audit code
The system call entry code will clear the high bits of argument
registers before invoking the system call; don't report whatever noise
happens to be in the high bits of the register before that happens.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:58 +11:00
Paul Gortmaker
0e47e3cca1 [POWERPC] Select DEFAULT_UIMAGE for HPC-NET/8641
I suspect this was meant to be added like it was to a whole slew of
other u-boot based boards, but probably just fell through the cracks.

Add "select DEFAULT_UIMAGE" for the 8641/HPC-NET.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:58 +11:00
Olaf Hering
0bcace3b8b [POWERPC] Update fixup_winbond_82c105 comment
Note all POWER3/POWER4 systems where fixup_winbond_82c105 will run.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:58 +11:00
Nathan Lynch
f1f003330b [POWERPC] maple: improve CPC9x5 host bridge detection
Identify CPC9x5 PCI Express, AGP, and HT host bridges using
device_type and compatible properties, which is a more flexible method
than using the name property (which can differ between firmwares and
models).

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:58 +11:00
Simon Vallet
9a3d6458e9 [POWERPC] Add support for R_PPC_ADDR16_HI relocations
apply_relocate_add() does not support R_PPC_ADDR16_HI relocations, which
prevents some non gcc-built modules to be loaded.

Signed-off-by: Simon Vallet <svallet@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:58 +11:00
Mariusz Kozlowski
06c3147564 [POWERPC] arch/powerpc/sysdev/cpm2_pic.c of_node_get cleanup
Remove redundant argument check for of_node_get().
It's ok to remove 'node' check because in real life cpm2_pic_init()
never gets called with node == NULL.

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:57 +11:00
Mariusz Kozlowski
a15d5eaa77 [POWERPC] arch/powerpc/sysdev/qe_lib of_node_get cleanup
No need for ?: as of_node_get() can handle NULL argument.

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>

 arch/powerpc/sysdev/qe_lib/qe_ic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:57 +11:00
Mariusz Kozlowski
c3bfc3a8dd [POWERPC] arch/powerpc/sysdev/mpic.c of_node_get cleanup
No need for ?: because of_node_get() can handle NULL argument.

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:57 +11:00
Mariusz Kozlowski
af337c096c [POWERPC] arch/powerpc/sysdev/ipic.c of_node_get cleanup
No need for ?: because of_node_get() can handle NULL argument.

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:57 +11:00
Mariusz Kozlowski
6690faeb35 [POWERPC] arch/powerpc/kernel/vio.c of_node_put cleanup
Remove redundant argument check for of_node_put().

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:57 +11:00
Mariusz Kozlowski
b137405143 [POWERPC] arch/ppc/kernel/prom.c of_node_(get|put) cleanup
Remove redundant argument checks for of_node_get() and of_node_put().

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:57 +11:00
Michal Ostrowski
a2894cfb3a [POWERPC] Do not write virq back to PCI config space
- Drivers will not rely on the PCI config space value, as they've
  already been conditioned to rely on the irq field in "struct pci_dev".

- The virq value may not be < 256 as it has been remapped.

- The PCI config space should reflect the hardware configuration, which
  is not being changed.  We are only creating a virtual irq mapping that
  exists in the kernel only. One would never expect the PCI hardware to
  generate the "virq" interrupt.

Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:57 +11:00
Linas Vepstas
a885902de3 [POWERPC] Clarify EEH error message
Clarify error message re EEH permanent failure.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:56 +11:00
Akinobu Mita
60bccbed6f [POWERPC] Use is_init() instead of pid==1
Use is_init() rather than hard coded pid comparison.

Cc: Anton Blanchard <anton@samba.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:13:56 +11:00
Geert Uytterhoeven
ded84bcb24 [POWERPC] ps3_free_io_irq: Fix inverted error check
ps3_free_io_irq: Fix inverted error check after calling
lv1_destruct_io_irq_outlet().

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:08:14 +11:00
Geert Uytterhoeven
63ea9c1710 [POWERPC] PS3: Fix uniprocessor kernel build
Allow to build a uniprocessor kernel for PS3.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-24 21:08:13 +11:00
Paul Mackerras
e89debcd18 [POWERPC] Update defconfigs
Mostly took the defaults, except tried to get the netfilter options
more or less as they were before.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 22:39:24 +11:00
Li Yang
06cd939677 [POWERPC] Fix OF node refcnt underflow in 836x and 832x platform code
Incorrect use of of_find_node_by_name() causes of_node_put()
on a node which has already been put.  It causes the refcount of
the node to underflow, which triggers the WARN_ON in kref_get
for 836x and 832x.  This fixes it.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 21:27:35 +11:00
Grant Likely
121361f72c [POWERPC] Make it blatantly clear; mpc5200 device tree is not yet stable
Documentation-only change.  The 5200 device tree layout has not yet
stablized, so nobody should depend on the layout of the tree.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 21:27:35 +11:00
Linas Vepstas
77319254f1 [POWERPC] Fix broken DMA on non-LPAR pSeries
It appears that the iommu table address is never stored, and thus
never found, on non-lpar systems. Thus, for example, during boot:

<7>[   93.067916] PCI: Scanning bus 0001:41
<7>[   93.068542] PCI: Found 0001:41:01.0 [8086/100f] 000200 00
<7>[   93.068550] PCI: Calling quirk c0000000007822e0 for 0001:41:01.0
<7>[   93.069815] PCI: Fixups for bus 0001:41
<4>[   93.070167] iommu: Device 0001:41:01.0 has no iommu table
<7>[   93.070251] PCI: Bus scan for 0001:41 returning with max=41

No iommu table? How can that be? Well, circa line 471 of
arch/powerpc/platforms/pseries/iommu.c we see the code:

   while (dn && PCI_DN(dn) && PCI_DN(dn)->iommu_table == NULL)
      dn = dn->parent;

and a few lines later is the surprising print statement about
the missing table.  Seems that this loop ran unto the end, never
once finding a non-null PCI_DN(dn)->iommu_table.

The problem can be found a few lines earlier: it sems that the
value of PCI_DN(dn)->iommu_table is never ever set. Thus, the
patch sets it.

The patch was tested on a Power4 system running in full system
partition mode, which is where I saw the problem. It works; I've
not done any wider testing. Had a brief discussion on this on irc.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 21:27:35 +11:00
Benjamin Herrenschmidt
6984ee797a [POWERPC] Fix cell's mmio nvram to properly parse device tree
The mmio nvram driver (used by cell only atm) isn't properly parsing
the device-tree, meaning that nvram isn't found correctly on the new
Cell blades.  It works ok for old blades where the nvram is at the
root of the device tree but fails on Malta and CAB when it's hanging
off axon.  This fixes it by using the proper OF parsing functions.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 21:27:35 +11:00
Benjamin Herrenschmidt
4ef6e68117 [POWERPC] Remove bogus sanity check in pci -> OF node code
The new implementation of pci_device_to_OF_node() on ppc32 has a bogus
sanity check in it that can cause oopses at boot when no device node is
present, and might hit correct cases with older/weird apple device-trees
where they have the type "vci" for the chaos bridge.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-22 21:27:35 +11:00
Gautham R Shenoy
b282b6f8a8 [PATCH] Change cpu_up and co from __devinit to __cpuinit
Compiling the kernel with CONFIG_HOTPLUG = y and CONFIG_HOTPLUG_CPU = n
with CONFIG_RELOCATABLE = y generates the following modpost warnings

WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141b7d) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141b9c) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.text:__cpu_up
from .text between '_cpu_up' (at offset 0xc0141bd8) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141c05) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141c26) and 'cpu_up'
WARNING: vmlinux - Section mismatch: reference to .init.data: from
.text between '_cpu_up' (at offset 0xc0141c37) and 'cpu_up'

This is because cpu_up, _cpu_up and __cpu_up (in some architectures) are
defined as __devinit
AND
__cpu_up calls some __cpuinit functions.

Since __cpuinit would map to __init with this kind of a configuration,
we get a .text refering .init.data warning.

This patch solves the problem by converting all of __cpu_up, _cpu_up
and cpu_up from __devinit to __cpuinit. The approach is justified since
the callers of cpu_up are either dependent on CONFIG_HOTPLUG_CPU or
are of __init type.

Thus when CONFIG_HOTPLUG_CPU=y, all these cpu up functions would land up
in .text section, and when CONFIG_HOTPLUG_CPU=n, all these functions would
land up in .init section.

Tested on a i386 SMP machine running linux-2.6.20-rc3-mm1.

Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2007-01-11 18:18:20 -08:00
Anton Blanchard
dc40127ca5 [POWERPC] Fix bugs in the hypervisor call stats code
There were a few issues with the HCALL_STATS code:

- PURR cpu feature checks were backwards
- We iterated one entry off the end of the hcall_stats array
- Remove dead update_hcall_stats() function prototype

I noticed one thing while debugging, and that is we call H_ENTER (to set
up the MMU hashtable in early init) before we have done the cpu fixups.
This means we will execute the PURR SPR reads even on a CPU that isnt
capable of it. I wonder if we can move the CPU feature fixups earlier.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:03 +11:00
Anton Blanchard
ab87e8dc88 [POWERPC] Fix corruption in hcall9
It looks to me like we are corrupting r12 in the hcall9 function.
Although we have r0 free we cant use offsets against it, so save
away r12 in there instead.  r12 holds the ninth return value from
the hypervisor call, so without this fix, the caller will see the
wrong value for the ninth element in the array that gets the return
values.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:03 +11:00
Stephen Rothwell
e75b171768 [POWERPC] iSeries: fix setup initcall
Clearing the progress indicator should only be done if we are running
on legacy iSeries.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:03 +11:00
Stephen Rothwell
e9966ff850 [POWERPC] iSeries: fix viopath initialisation
/proc/iSeries/config should only be created if we are running on legacy
iSeries.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:03 +11:00
Stephen Rothwell
13d2c9bbb0 [POWERPC] iSeries: fix lpevents initialisation
/proc/iSeries/lpevents should only be created if we are running
on legacy iSeries.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:03 +11:00
Stephen Rothwell
8404e65430 [POWERPC] iSeries: fix proc/iSeries initialisation
These proc files should only be created if we are running on legacy
iSeries.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:03 +11:00
Stephen Rothwell
d9523aa157 [POWERPC] iSeries: fix mf proc initialisation
This proc file should only be created if we are running on legacy
iSeries.  Since we can now run the same kernel on legacy iSeries and
other machines, we currently get the /proc/iSeries directory and the
files in it on non-iSeries machines, and accessing them causes an oops
in some cases.  This and the following patches make sure that these
files are not created on non-iSeries machines, thus avoiding the oops.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:03 +11:00
Olaf Hering
7232846b8d [POWERPC] disable PReP and EFIKA during make oldconfig
New boards should not be enabled per default.
Disable EFIKA and PReP per default.
Anyone who really needes the new code can enable it during make oldconfig.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:02 +11:00
Grant Likely
9b3a6f4ab9 [POWERPC] Don't include powerpc/sysdev/rom.o for arch/ppc builds
sysdev/rom.c is for arch/powerpc only.  Don't compile it when building
an arch/ppc kernel.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:02 +11:00
Grant Likely
a5b6ad6691 [POWERPC] Fix mpc52xx fdt to use correct device_type for sound devices
This corrects the documented interface for mpc52xx device trees.
Sound devices should be using 'sound' for the device_type field, not
the type of sound interface.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:02 +11:00
Sylvain Munaut
5c334eed6e [POWERPC] 52xx: Don't use device_initcall to probe of_platform_bus
Using device_initcall makes it happen for every platform that
compiles this file in. This is really bad, for obvious reasons.

Instead, we use the .init field of the machine description. If
the platform needs the hook to do something specific it can provides
its own function and call mpc52xx_declare_of_platform_devices from
there. If not, the mpc52xx_declare_of_platform_devices function can
directly be used as the init hook.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:02 +11:00
Stephen Rothwell
56c336cb05 [POWERPC] Add legacy iSeries to ppc64_defconfig
Since we can now boot legacy iSeries and other machines with the same
config, enable legacy iSeries in ppc64_defconfig.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:02 +11:00
Stephen Rothwell
338e997d94 [POWERPC] Update ppc64_defconfig
Enabled new netfilter stuff corresponding to what was enabled before
under different names, and turned on the gxt4500 video driver;
otherwise just took the defaults.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:02 +11:00
David Woodhouse
007d88d042 [POWERPC] Fix manual assembly WARN_ON() in enter_rtas().
When we switched over to the generic BUG mechanism we forgot to change
the assembly code which open-codes a WARN_ON() in enter_rtas(), so the
bug table got corrupted.

This patch provides an EMIT_BUG_ENTRY macro for use in assembly code,
and uses it in entry_64.S. Tested with CONFIG_DEBUG_BUGVERBOSE on ppc64
but not without -- I tried to turn it off but it wouldn't go away; I
suspect Aunt Tillie probably needed it.

This version gets __FILE__ and __LINE__ right in the assembly version --
rather than saying include/asm-powerpc/bug.h line 21 every time which is
a little suboptimal.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:02 +11:00
Michal Ostrowski
673aeb76d0 [POWERPC] Avoid calling get_irq_server() with a real, not virtual irq.
We can use default_server when masking an interrupt vector.
get_irq_server() assumes a virtual irq, so badness may happen if we
give it a real one.

Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:01 +11:00
Nathan Lynch
5e264a5215 [POWERPC] Fix unbalanced uses of of_node_put
The (maple|pasemi)_init_IRQ functions call of_node_put(root) once more
than they should, causing the refcount of the root node to underflow,
which triggers the WARN_ON in kref_get.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:01 +11:00
David Gibson
6aa3e1e944 [POWERPC] Fix bogus BUG_ON() in in hugetlb_get_unmapped_area()
The powerpc specific version of hugetlb_get_unmapped_area() makes some
unwarranted assumptions about what checks have been made to its
parameters by its callers.  This will lead to a BUG_ON() if a 32-bit
process attempts to make a hugepage mapping which extends above
TASK_SIZE (4GB).

I'm not sure if these assumptions came about because they were valid
with earlier versions of the get_unmapped_area() path, or if it was
always broken.  Nonetheless this patch fixes the logic, and removes
the crash.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-01-09 17:03:01 +11:00
Linus Torvalds
de9b2fccb6 Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (22 commits)
  acpiphp: Link-time error for PCI Hotplug
  shpchp: cleanup shpchp.h
  shpchp: remove shpchprm_get_physical_slot_number
  shpchp: cleanup struct controller
  shpchp: remove unnecessary struct php_ctlr
  PCI: ATI sb600 sata quirk
  PCI legacy resource fix
  PCI: don't export device IDs to userspace
  PCI: Be a bit defensive in quirk_nvidia_ck804() so we don't risk dereferencing a NULL pdev.
  PCI: Fix multiple problems with VIA hardware
  PCI: Only check the HT capability bits in mpic.c
  PCI: Use pci_find_ht_capability() in drivers/pci/quirks.c
  PCI: Add #defines for Hypertransport MSI fields
  PCI: Use pci_find_ht_capability() in drivers/pci/htirq.c
  PCI: Add pci_find_ht_capability() for finding Hypertransport capabilities
  PCI: Create __pci_bus_find_cap_start() from __pci_bus_find_cap()
  pci: Introduce pci_find_present
  PCI: pcieport-driver: remove invalid warning message
  rpaphp: compiler warning cleanup
  PCI quirks: remove redundant check
  ...
2006-12-21 00:01:47 -08:00
Michael Ellerman
beb7cc8238 PCI: Only check the HT capability bits in mpic.c
Only compare the exact HT capability bits against HT_CAPTYPE_IRQ,
this is a little paranoid, but doesn't hurt.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-20 10:54:43 -08:00
Paul Mackerras
1c9bb1a01a [POWERPC] Fix register save area alignment for swapcontext syscall
For 32-bit processes, the getcontext side of the swapcontext system
call (i.e. the saving of the context when the first argument is
non-NULL) has to set the ctx->uc_mcontext.uc_regs pointer to the place
where it saves the registers.  Which it does, but it doesn't ensure
that the pointer is 16-byte aligned.  16-byte alignment is needed
because the Altivec/VMX registers are saved in there, and they need to
be on a 16-byte boundary.

This fixes it by ensuring the appropriate alignment of the pointer.
This issue was pointed out by Jakub Jelinek.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-20 16:37:49 +11:00
Linas Vepstas
bb63ab1351 [POWERPC] Fix PCI device channel state initialization
Initialize the pci device pci channel state. This is critical
for having the pci_channel_offline() routine (in pci.h) to
function correctly.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-20 16:37:49 +11:00
David Woodhouse
3f245e2a1e [POWERPC] Probe Efika platform before CHRP.
The Efika matches chrp_probe() too, so put its own probe first to make
sure we get it right in a multiplatform build.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-20 16:37:48 +11:00
Benjamin Herrenschmidt
d28d027ab3 [POWERPC] Fix build of cell zImage.initrd
The patch adding support for zImage.ps3 didn't add a zImage.initrd.ps3
target causing builds of zImage.initrd to fail when ps3 is included in
the .config. The current method of generating ps3 images doesn't support
initrd's yet, so we create a dummy target that only displays a warning
message instead.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-20 16:37:48 +11:00
Stephen Rothwell
ba3ba887c3 [POWERPC] iSeries: fix CONFIG_VIOPATH dependency
This is a long standing typo.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-20 16:37:48 +11:00
Benjamin Herrenschmidt
6f67f9d26f [POWERPC] Workaround oldworld OF bug with IRQs & P2P bridges
On some oldworld PowerMacs, OF doesn't assign interrupts properly
beyond P2P bridges. Fortunately, the fix is easy as all those machines
just wire all IRQ lines together to one IRQ which is assigned to the
bridge itself. We already have a special function for parsing Apple
OldWorld interrupts which are special, so let's add to it the ability
to walk up the PCI tree to find interrupts.

This fixes irqs on the lower slots of s900 clones among others.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-20 16:37:47 +11:00
Arnd Bergmann
4bc196266e [POWERPC] powerpc: add scanning of ebc bus to of_platform
This patch add scanning of ebc bus to of_platform, which is needed
to recognize devices located on that bus.

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-19 15:35:40 +01:00
Arnd Bergmann
ccb4911598 [POWERPC] spufs: fix assignment of node numbers
The difference between 'nid' and 'node' fields in an
spu structure was used incorrectly. The common 'node'
number now reflects the NUMA node, and it is used
in other places in the code as well.

The 'nid' value is meaningful only in one place, namely
the computation of the interrupt numbers based on the
physical location of an spu.  Consequently, we look it
up directly in the place where it is used now.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-19 15:35:39 +01:00
Benjamin Herrenschmidt
6e22ba63f0 [POWERPC] cell: Fix spufs with "new style" device-tree
Some SPU code was a bit too convoluted and broke when adding support for
the new style device-tree, most notably the struct pages for SPEs no
longer get created. oops...

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-19 15:35:38 +01:00
Jens Osterkamp
a24e57be9b [POWERPC] cell: Enable spider workarounds on all PCI buses
Don't limit spider I/O workarounds to the first two buses.
The IBM Cell blade has three of them (one PCI, two PCIe)
and we want to handle them all.

Signed-off-by: Jens Osterkamp <jens@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-19 15:35:37 +01:00
Arnd Bergmann
ed8ed9ac06 [POWERPC] cell: update cell_defconfig
New options appeared in the kernel, and new hardware became
available for us to use.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-19 15:35:35 +01:00
Robert P. J. Day
5cbded585d [PATCH] getting rid of all casts of k[cmz]alloc() calls
Run this:

	#!/bin/sh
	for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do
	  echo "De-casting $f..."
	  perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f
	done

And then go through and reinstate those cases where code is casting pointers
to non-pointers.

And then drop a few hunks which conflicted with outstanding work.

Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Greg KH <greg@kroah.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Karsten Keil <kkeil@suse.de>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13 09:05:58 -08:00
Robert P. J. Day
bef1f40261 kconfig: Standardize "depends" -> "depends on" in Kconfig files
Standardize the miniscule percentage of occurrences of "depends" in
Kconfig files to "depends on", and update kconfig-language.txt to
reflect that.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-12-12 20:04:19 +01:00
Linus Torvalds
13d7d84e07 Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (36 commits)
  [POWERPC] Generic BUG for powerpc
  [PPC] Fix compile failure do to introduction of PHY_POLL
  [POWERPC] Only export __mtdcr/__mfdcr if CONFIG_PPC_DCR is set
  [POWERPC] Remove old dcr.S
  [POWERPC] Fix SPU coredump code for max_fdset removal
  [POWERPC] Fix irq routing on some 32-bit PowerMacs
  [POWERPC] ps3: Add vuart support
  [POWERPC] Support ibm,dynamic-reconfiguration-memory nodes
  [POWERPC] dont allow pSeries_probe to succeed without initialising MMU
  [POWERPC] micro optimise pSeries_probe
  [POWERPC] Add SPURR SPR to sysfs
  [POWERPC] Add DSCR SPR to sysfs
  [POWERPC] Fix 440SPe CPU table entry
  [POWERPC] Add support for FP emulation for the e300c2 core
  [POWERPC] of_device_register: propagate device_create_file return code
  [POWERPC] Fix mmap of PCI resource with hack for X
  [POWERPC] iSeries: head_64.o needs to depend on lparmap.s
  [POWERPC] cbe_thermal: Fix initialization of sysfs attribute_group
  [POWERPC] Remove QE header files from lite5200.c
  [POWERPC] of_platform_make_bus_id(): make `magic' int
  ...
2006-12-11 18:24:58 -08:00
Jeremy Fitzhardinge
73c9ceab40 [POWERPC] Generic BUG for powerpc
This makes powerpc use the generic BUG machinery.  The biggest reports the
function name, since it is redundant with kallsyms, and not needed in general.

There is an overall reduction of code, since module_32/64 duplicated several
functions.

Unfortunately there's no way to tell gcc that BUG won't return, so the BUG
macro includes a goto loop.  This will generate a real jmp instruction, which
is never used.

[akpm@osdl.org: build fix]
[paulus@samba.org: remove infinite loop in BUG_ON]
Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Andi Kleen <ak@muc.de>
Cc: Hugh Dickens <hugh@veritas.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-11 16:35:07 +11:00
Paul Mackerras
973c1fabc7 Merge branch 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc 2006-12-11 16:31:42 +11:00
Kumar Gala
c86c676cca Merge branch '85xx' into for_paulus 2006-12-10 23:16:08 -06:00
Kumar Gala
45d8e7aaf4 [POWERPC] Only export __mtdcr/__mfdcr if CONFIG_PPC_DCR is set
On 85xx we don't build in dcr support because the core doesn't implement the
instructions.  This caused problems when building an 85xx kernel.  Additionally
made it so we only build __mtdcr/__mfdcr if we are CONFIG_PPC_DCR_NATIVE.

The 85xx build issue wasPointed out by Dai Haruki.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2006-12-10 23:15:47 -06:00
Benjamin Herrenschmidt
4383162c8f [POWERPC] Remove old dcr.S
When I renamed dcr.S to dcr_low.S (and added dcr.c) it looks like the
old dcr.S file didn't properly get removed.  This fixes it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-11 15:13:47 +11:00
Paul Mackerras
39f44be375 [POWERPC] Fix SPU coredump code for max_fdset removal
Commit bbea9f6966 removed the max_fdset
element of struct fdtable.  It appears that checking max_fds is
sufficient now.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-11 15:13:37 +11:00
Benjamin Herrenschmidt
dae4828d66 [POWERPC] Fix irq routing on some 32-bit PowerMacs
The changes to use pci_read_irq_line() broke interrupt parsing
on some 32-bit powermacs (oops).  The reason is a bit obscure.
The code to parse interrupts happens earlier now, during
pcibios_fixup() as the PCI bus is being probed.  However, the
current implementation pci_device_to_OF_node() for 32-bit
powerpc relies, on machines like PowerMac which renumber PCI buses,
on a table called pci_OF_bus_map containing a map of bus numbers
between the kernel and the firmware which is setup only later.
Thus, it fails to match the device node.  In addition, some of
Apple internal PCI devices lack a proper PCI_INTERRUPT_PIN, thus
preventing the fallback mapping code to work.

This patch fixes it by making pci_device_to_OF_node() 32-bit
implementation use a different algorithm that works without
using the pci_OF_bus_map thing (which I intend to deprecate
anyway). It's a bit slower but that function isn't called in
any hot path hopefully.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2006-12-11 14:45:53 +11:00
Geoff Levand
74e95d5de9 [POWERPC] ps3: Add vuart support
Adds support for the PS3 virtual UART (vuart).  The vuart provides a
bi-directional byte stream data link between logical partitions.

This is needed for the ps3 graphics driver and the ps3 power
control support to be able to communicate with the lv1 policy
module.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-11 13:49:53 +11:00
Paul Mackerras
0204568a08 [POWERPC] Support ibm,dynamic-reconfiguration-memory nodes
For PAPR partitions with large amounts of memory, the firmware has an
alternative, more compact representation for the information about the
memory in the partition and its NUMA associativity information.  This
adds the code to the kernel to parse this alternative representation.

The other part of this patch is telling the firmware that we can
handle the alternative representation.  There is however a subtlety
here, because the firmware will invoke a reboot if the memory
representation we request is different from the representation that
firmware is currently using.  This is because firmware can't change
the representation on the fly.  Further, some firmware versions used
on POWER5+ machines have a bug where this reboot leaves the machine
with an altered value of load-base, which will prevent any kernel
booting until it is reset to the normal value (0x4000).  Because of
this bug, we do NOT set fake_elf.rpanote.new_mem_def = 1, and thus we
do not request the new representation on POWER5+ and earlier machines.
We do request the new representation on POWER6, which uses the
ibm,client-architecture-support call.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-11 13:49:49 +11:00
Anton Blanchard
a223535425 [POWERPC] dont allow pSeries_probe to succeed without initialising MMU
pSeries_probe can decide that we are a pseries but then fail to
initialise the MMU. If an rtas node doesnt exist, we continually fall
out of pSeries_probe_hypertas early and never get to the MMU init code.

While pseries without RTAS is an illegal combination, the way we
currently fail is a pain to track down, and can happen if your flattened
device tree code has issues (like mine did :).

With the following patch we init the MMU, come up and print some
warnings about RTAS not existing, instead of looping on 0x400 exceptions.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-09 11:39:06 +11:00
Anton Blanchard
5773bbcdec [POWERPC] micro optimise pSeries_probe
We find the OF root the line before, we may as well use it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-09 11:39:06 +11:00
Anton Blanchard
f050982a9b [POWERPC] Add SPURR SPR to sysfs
Now we have a SPURR cpu feature bit, we can export it to userspace in
sysfs.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-09 11:39:06 +11:00
Anton Blanchard
4c198557c6 [POWERPC] Add DSCR SPR to sysfs
POWER6 adds a new SPR, the data stream control register (DSCR). It can
be used to adjust how agressive the prefetch mechanisms are.

Its possible we may want to context switch this, but for now just export
it to userspace via sysfs so we can adjust it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-09 11:39:05 +11:00
David Howells
ef55d53caa [PATCH] LOG2: Provide ilog2() fallbacks for powerpc
Provide ilog2() fallbacks for powerpc for 32-bit numbers and 64-bit numbers on
ppc64.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:51 -08:00
David Howells
f0d1b0b30d [PATCH] LOG2: Implement a general integer log2 facility in the kernel
This facility provides three entry points:

	ilog2()		Log base 2 of unsigned long
	ilog2_u32()	Log base 2 of u32
	ilog2_u64()	Log base 2 of u64

These facilities can either be used inside functions on dynamic data:

	int do_something(long q)
	{
		...;
		y = ilog2(x)
		...;
	}

Or can be used to statically initialise global variables with constant values:

	unsigned n = ilog2(27);

When performing static initialisation, the compiler will report "error:
initializer element is not constant" if asked to take a log of zero or of
something not reducible to a constant.  They treat negative numbers as
unsigned.

When not dealing with a constant, they fall back to using fls() which permits
them to use arch-specific log calculation instructions - such as BSR on
x86/x86_64 or SCAN on FRV - if available.

[akpm@osdl.org: MMC fix]
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David Howells <dhowells@redhat.com>
Cc: Wojtek Kaniewski <wojtekka@toxygen.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:51 -08:00
Josef Sipek
b4d1ab58c0 [PATCH] struct path: convert powerpc
Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08 08:28:48 -08:00
Kumar Gala
a147c5857c [POWERPC] Fix 440SPe CPU table entry
The 440SPe CPU table entry was missing the CPU_FTR_NODSISRALIGN and
really should have been CPU_FTRS_44X.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2006-12-08 02:45:38 -06:00
Kumar Gala
5f95bd481e Merge branch '83xx' into for_paulus 2006-12-08 02:44:40 -06:00
Kim Phillips
aa42c69c67 [POWERPC] Add support for FP emulation for the e300c2 core
The e300c2 has no FPU.  Its MSR[FP] is grounded to zero.  If an attempt
is made to execute a floating point instruction (including floating-point
load, store, or move instructions), the e300c2 takes a floating-point
unavailable interrupt.

This patch adds support for FP emulation on the e300c2 by declaring a
new CPU_FTR_FP_TAKES_FPUNAVAIL, where FP unavail interrupts are
intercepted and redirected to the ProgramCheck exception path for
correct emulation handling.

(If we run out of CPU_FTR bits we could look to reclaim this bit by adding
support to test the cpu_user_features for PPC_FEATURE_HAS_FPU instead)

It adds a nop to the exception path for 32-bit processors with a FPU.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2006-12-08 02:43:30 -06:00
Kumar Gala
39043a5b3d [POWERPC] of_device_register: propagate device_create_file return code
Removed compiler warning about ignoring the return code of device_create_file
in of_device_register.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2006-12-08 02:23:07 -06:00
Benjamin Herrenschmidt
396a1a5832 [POWERPC] Fix mmap of PCI resource with hack for X
The powerpc version of pci_resource_to_user() and associated hooks
used by /proc/bus/pci and /sys/bus/pci mmap have been broken for some
time on machines that don't have a 1:1 mapping of devices (basically
on non-PowerMacs) and have PCI devices above 32 bits.

This attempts to fix it as well as possible.

The rule is supposed to be that pci_resource_to_user() always converts
the resources back into a BAR values since that's what the /proc
interface was supposed to deal with. However, for X to work on
platforms where PCI MMIO is not mapped 1:1, it became a habit of
platforms like powerpc to pass "fixed up" values there since X expects
to be able to use values from /proc/bus/pci/devices as offsets to mmap
of /dev/mem...

So we keep that contraption here, causing also /sys/*/resource to
expose fully absolute MMIO addresses instead of BAR values, which is
ugly, but should still work as long as those are only used to calculate
alignment within a page.

X is still broken when built 32 bits on machines where PCI MMIO can be
above 32-bit space unfortunately.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:21:06 +11:00
Stephen Rothwell
f09b5ce018 [POWERPC] iSeries: head_64.o needs to depend on lparmap.s
This dependency was inadvertantly removed in a previous patch
(e73aedba56).

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:21:06 +11:00
Christian Krafft
22b6e59047 [POWERPC] cbe_thermal: Fix initialization of sysfs attribute_group
This patch adds NULL to the initialization of the attribute_groups.
The spu_attributes and ppe_attributes arrays are arrays of pointers
that need to be terminated with a NULL entry.

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:21:02 +11:00
Timur Tabi
18414ec0b5 [POWERPC] Remove QE header files from lite5200.c
The MPC 5200 does not have a QUICCEngine (QE), so lite5200.c should not
include the QE header files.

Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:10:23 +11:00
Geert Uytterhoeven
30d368430e [POWERPC] of_platform_make_bus_id(): make `magic' int
of_platform_make_bus_id(): Kill a compiler warning which is a real
bug on PPC64 by changing `magic' to `int'.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:10:22 +11:00
Nathan Lynch
9e254c45fb [POWERPC] maple: Use RTAS for reboot and halt
On maple, use the RTAS "system-reboot" and "power-off" methods if they
are available.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:10:22 +11:00
Nathan Lynch
f2d6d2d8bb [POWERPC] Add rtas_service_present() helper
To test for the existence of an RTAS function, we typically do:

   foo_token = rtas_token("foo");
   if (foo_token == RTAS_UNKNOWN_SERVICE)
      return;

Add a rtas_service_present method, which provides a more conventional
boolean interface for testing the existence of an RTAS method.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:10:22 +11:00
Nathan Lynch
9d9d868ecf [POWERPC] maple: Select PPC_RTAS
Some systems supported by the maple platform have RTAS; make PPC_MAPLE
select PPC_RTAS.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:10:22 +11:00
Nathan Lynch
17877116c6 [POWERPC] maple: Match "pcie" name for CPC945
Some firmwares have "pcie" for the "name" property of the CPC945 PCI
Express host bridge.  Check for "pcie" in addition to "pci" so we
don't miss it.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:10:22 +11:00
Scott Wood
2c1d2f34a0 [POWERPC] qe_ic: Do a sync when masking interrupts
This patch causes a sync do be done after masking a QE interrupt, to
ensure that the masking has completed before interrupts are enabled.
This allows the masking of the cascade IRQ to be removed without causing
spurious interrupts.

The mask_and_ack function is also removed and set to the mask function,
as the two are identical.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:10:22 +11:00
Linas Vepstas
d0e70341c0 [POWERPC] EEH recovery tweaks
If one attempts to create a device driver recovery sequence that
does not depend on a hard reset of the device, but simply just
attempts to resume processing, then one discovers that the
recovery sequence implemented on powerpc is not quite right.
This patch fixes this up.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 17:10:18 +11:00
Geoff Levand
885ed0fb48 [POWERPC] powerpc: fix build error in rom.c
Add missing include in rom.c.  Fixes this build error when CONFIG_MTD=y:

  arch/powerpc/sysdev/rom.c:26: error: implicit declaration of function
  of_platform_device_create

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 15:55:55 +11:00
Michael Ellerman
06ba30b6bf [POWERPC] Cleanup pass over platforms/pseries/hotplug-cpu.c
Purely cosmetic.  Change pSeries to pseries inline with other parts of the
kernel, and fix an overly long line.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 15:55:55 +11:00
Michael Ellerman
674fa677c0 [POWERPC] Only enable cpu hotplug via RTAS if the required firmware support is found
To support cpu hotplug on pseries we require two RTAS tokens.  The cpu
hotplug machinery should only be wired up if these tokens are found in
the device tree.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 15:55:55 +11:00
Michael Ellerman
413f7c405a [POWERPC] Move the rest of the hotplug cpu code into platforms/pseries/hotplug-cpu.c
Move the rest of the hotplug cpu code from platforms/pseries/smp.c into
platforms/pseries/hotplug-cpu.c.

Wire up the smp_ops callbacks and the notifier in the hotplug cpu initcall,
rather than in smp_init_pseries().  No change in behaviour.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 15:55:55 +11:00
Michael Ellerman
04da6af960 [POWERPC] Move pSeries_mach_cpu_die() into platforms/pseries/hotplug-cpu.c
Move pSeries_mach_cpu_die() into platforms/pseries/hotplug-cpu.c,
this allows rtas_stop_self() to be static so remove the prototype.

Wire up pSeries_mach_cpu_die() in the initcall, rather than statically
in setup.c, the initcall will still run prior to the cpu hotplug code
being callable, so there should be no change in behaviour.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 15:55:55 +11:00
Michael Ellerman
0332c2d447 [POWERPC] Move rtas_stop_self() into platforms/pseries/hotplug-cpu.c
As the first step in consolidating the pseries hotplug cpu code,
create platforms/pseries/hotplug-cpu.c and move rtas_stop_self()
into it.  Do the rtas token initialisation in a new initcall, rather
than rtas_initialize().

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 15:55:54 +11:00
Stephen Rothwell
a081e126e1 [POWERPC] Fix cell pmu initialisation
Make sure that the pmu is not initialised unless we are running on a cell.
Also make the init routine static.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-08 15:55:54 +11:00
Linus Torvalds
4522d58275 Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (156 commits)
  [PATCH] x86-64: Export smp_call_function_single
  [PATCH] i386: Clean up smp_tune_scheduling()
  [PATCH] unwinder: move .eh_frame to RODATA
  [PATCH] unwinder: fully support linker generated .eh_frame_hdr section
  [PATCH] x86-64: don't use set_irq_regs()
  [PATCH] x86-64: check vector in setup_ioapic_dest to verify if need setup_IO_APIC_irq
  [PATCH] x86-64: Make ix86 default to HIGHMEM4G instead of NOHIGHMEM
  [PATCH] i386: replace kmalloc+memset with kzalloc
  [PATCH] x86-64: remove remaining pc98 code
  [PATCH] x86-64: remove unused variable
  [PATCH] x86-64: Fix constraints in atomic_add_return()
  [PATCH] x86-64: fix asm constraints in i386 atomic_add_return
  [PATCH] x86-64: Correct documentation for bzImage protocol v2.05
  [PATCH] x86-64: replace kmalloc+memset with kzalloc in MTRR code
  [PATCH] x86-64: Fix numaq build error
  [PATCH] x86-64: include/asm-x86_64/cpufeature.h isn't a userspace header
  [PATCH] unwinder: Add debugging output to the Dwarf2 unwinder
  [PATCH] x86-64: Clarify error message in GART code
  [PATCH] x86-64: Fix interrupt race in idle callback (3rd try)
  [PATCH] x86-64: Remove unwind stack pointer alignment forcing again
  ...

Fixed conflict in include/linux/uaccess.h manually

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:59:11 -08:00
Magnus Damm
85916f8166 [PATCH] Kexec / Kdump: Unify elf note code
The elf note saving code is currently duplicated over several
architectures.  This cleanup patch simply adds code to a common file and
then replaces the arch-specific code with calls to the newly added code.

The only drawback with this approach is that s390 doesn't fully support
kexec-on-panic which for that arch leads to introduction of unused code.

Signed-off-by: Magnus Damm <magnus@valinux.co.jp>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:46 -08:00
Masami Hiramatsu
b4c6c34a53 [PATCH] kprobes: enable booster on the preemptible kernel
When we are unregistering a kprobe-booster, we can't release its
instruction buffer immediately on the preemptive kernel, because some
processes might be preempted on the buffer.  The freeze_processes() and
thaw_processes() functions can clean most of processes up from the buffer.
There are still some non-frozen threads who have the PF_NOFREEZE flag.  If
those threads are sleeping (not preempted) at the known place outside the
buffer, we can ensure safety of freeing.

However, the processing of this check routine takes a long time.  So, this
patch introduces the garbage collection mechanism of insn_slot.  It also
introduces the "dirty" flag to free_insn_slot because of efficiency.

The "clean" instruction slots (dirty flag is cleared) are released
immediately.  But the "dirty" slots which are used by boosted kprobes, are
marked as garbages.  collect_garbage_slots() will be invoked to release
"dirty" slots if there are more than INSNS_PER_PAGE garbage slots or if
there are no unused slots.

Cc: "Keshavamurthy, Anil S" <anil.s.keshavamurthy@intel.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: "bibo,mao" <bibo.mao@intel.com>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Cc: Yumiko Sugita <yumiko.sugita.yf@hitachi.com>
Cc: Satoshi Oshima <soshima@redhat.com>
Cc: Hideo Aoki <haoki@redhat.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:38 -08:00
Nigel Cunningham
7dfb71030f [PATCH] Add include/linux/freezer.h and move definitions from sched.h
Move process freezing functions from include/linux/sched.h to freezer.h, so
that modifications to the freezer or the kernel configuration don't require
recompiling just about everything.

[akpm@osdl.org: fix ueagle driver]
Signed-off-by: Nigel Cunningham <nigel@suspend2.net>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:27 -08:00
Christoph Lameter
e18b890bb0 [PATCH] slab: remove kmem_cache_t
Replace all uses of kmem_cache_t with struct kmem_cache.

The patch was generated using the following script:

	#!/bin/sh
	#
	# Replace one string by another in all the kernel sources.
	#

	set -e

	for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
		quilt add $file
		sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
		mv /tmp/$$ $file
		quilt refresh
	done

The script was run like this

	sh replace kmem_cache_t "struct kmem_cache"

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:25 -08:00
Christoph Lameter
e94b176609 [PATCH] slab: remove SLAB_KERNEL
SLAB_KERNEL is an alias of GFP_KERNEL.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07 08:39:24 -08:00