Commit Graph

9949 Commits

Author SHA1 Message Date
Matthew Wilcox
e635c96ed6 [PARISC] Explicitly specify sr4 when flushing kernel space
Specify sr4 when flushing kernel space (we could equally well use sr5-7,
but must not use sr0).

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:56:14 -04:00
Grant Grundler
9b3b331d03 [PARISC] Properly specify index field to I/D cache flush ops
replace use of "0" with "%r0" since PA 1.1 I/D flush ops only take a
general register and not an immediate value for the index field.
This just forces the code to always be PA 1.1 "clean".

From: Joel Soete <soete.joel@tiscali.be>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:55:51 -04:00
Grant Grundler
37318a3cb1 [PARISC] Fix copy_user_page_asm to NOT access past end of page
2.6.12-rc2-pa3 fix copy_user_page_asm to NOT access past end of page.

My bad. /o\
Lamont confirmed that instructions following a conditional
branch are *alway* executed regardless if the branch is taken or not.
Unless they are nullified (which was missing in this case).

He also noted:
Conditional branches nullify on forward taken branch, and on
non-taken backward branch. Note that .+4 is a backwards branch.

This makes alot more sense than the giberish in the PA20 arch book.

Compiles and boots on both 64-bit (a500) and 32-bit (j6k).

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:55:34 -04:00
Sven Schnelle
c2709020ad [PARISC] Add NETPOLL support to lasi_82596
add netpoll support
Patch by Sven Schnelle <svens@gmx.de>

Signed-off-by: Sven Schnelle <svens@gmx.de>
Signed-off-by: Helge Deller <deller@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:55:15 -04:00
James Bottomley
dd0fd51dc1 [PARISC] Remove the spurious do_softirq calls from entry.S
remove the spurious do_softirq calls from entry.S

With these in we were calling do_softirq twice; plus the calls in
entry.S took no account of nesting.

Signed-off-by: James Bottomley <jejb@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:54:38 -04:00
Grant Grundler
63af965d2b [PARISC] Define pgprot_noncached macro in pgtable.h
drivers/infiniband depends on definition of pgprot_noncached() macro.
Someone else will have to fix it's wrong.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:54:20 -04:00
Kyle McMartin
b4b45313e5 [PARISC] Add other CRT_ID for newer cards to grfioctl.h
Add IDs for some other STI graphics cards found on HP PA-RISC
machines.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:54:00 -04:00
Grant Grundler
05aa10de70 [PARISC] Add ECANCELED to errno.h
add ECANCELED - SuSv3 wants one L.  IB/SDP actually returns this error.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:53:43 -04:00
James Bottomley
618febd678 [PARISC] Fix the alloc_slabmgmt panic
Fix the alloc_slabmgmt panic

Hopefully this should also fix a lot of other intermittent kernel bugs.

The problem has been around since 2.6.9-rc2-pa6 when we allowed
floating point registers to be used in kernel code.  The essence of
the problem is that gcc prefers to use floating point for integer
divides and multiples.  Further, it can rely on the values in the no
clobber fp regs being correct across a function call.  Unfortunately,
our task switch function only saves the integer no clobber registers,
not the fp ones, so if gcc makes a function call to any function in
the kernel which could sleep, the values it is relying on in any no
clobber floating point register may be lost.  In the case of
alloc_slabmgmt, the value of the page offset is being stored in %fr12
across a call to kmem_getpages(), which sleeps if no pages are
available.  Thus, the offset can be trashed and the slab code can end
up with a completely bogus address leading to corruption.

Kudos to Randolph who came up with the program to trip this problem at
will and thus allowed it to be tracked and fixed.

Signed-off-by: James Bottomley <jejb@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:53:26 -04:00
Carlos O'Donell
b2450cc1b7 [PARISC] Implement 5 argument clone.
* arch/parisc/kernel/process.c (sys_clone): Use 5 args, and process
  CLONE_PARENT_SETTID, CLONE_CHILD_SETTID, CLONE_CHILD_CLEARTID.
  (copy_thread): First cut at CLONE_SETTLS.

Signed-off-by: Carlos O'Donell <carlos@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:53:04 -04:00
Grant Grundler
8b631342dd [PARISC] Update Kconfig for itimer selection
2.6.14-rc2-pa1: enable 100/250/1000HZ itimer selection

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Mark floppy as broken.  Thanks Joel

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

make DISCONTIGMEM depend on 64BIT

Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:52:46 -04:00
Randolph Chung
5beb5f32c5 [PARISC] Update minimum compiler version and CROSS_COMPILE for parisc64
Prefix changed in debian, include "gnu" in the commandline.

Signed-off-by: Carlos O'Donell <carlos@parisc-linux.org>

Ensure the compiler version is new enough (>= 3.3)

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:52:00 -04:00
Grant Grundler
675ec7a56a [PARISC] Document history of PDC_NARROW as it is now obsolete
Document history of PDC_NARROW a bit as it will still show
up in an older kernel's .config file.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:51:40 -04:00
Jesper Juhl
c8e8b1937a [PARISC] kfree cleanups to ioctl32.c
2.6.12-rc2-pa2 kfree cleanups from Jesper Juhl

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:51:23 -04:00
Grant Grundler
b8db800295 [PARISC] Cleanup whitespace and handle proc_mkdir() failures in pci-dma.c
1) cleanup whitespace and handle proc_mkdir() failures.
   From: Christophe Lucas <clucas@rotomalug.org>

2) rename "dino" entry to "pcxl_dma"...also seems like it's in
   the wrong location.

3) don't dump resource bitmap in /proc/pcxl_dma output

4) fixup compiler warning

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:50:48 -04:00
Grant Grundler
8054f03f63 [PARISC] More informative error message in pcibios_link_hba_resources
Generate a more informative message when a resource does not have
a parent.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:50:33 -04:00
Matthew Wilcox
7c92e972da [PARISC] Update pdc console from parisc tree
Get rid of some unnecessary includes
Remove a layer of macro indirection around pdc_console_device
Delete pdc_console_die() as it is unused
Avoid double-printing on panic by clearing CON_PRINTBUFFER rather than
setting con_start to be log_end
Make con_start and log_end static again

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:50:06 -04:00
Randolph Chung
40c72f20e8 [PARISC] Prevent signal loops if we have a problem setting up a frame
2.6.13-rc6-pa2
use force_sigsegv() if we have a problem setting up a frame. This is
required to prevent SIGSEGV loops.

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:49:47 -04:00
Thibaut Varene
eba917273e [PARISC] Add printing of fpregs state to stack dump
We're using fp regs now in the kernel, so we want to print them
on stack dump

Signed-off-by: Thibaut VARENE <varenet@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:49:25 -04:00
Matthew Wilcox
74d13f84a9 [PARISC] Fix compile warning in pci.h
Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:49:05 -04:00
Randolph Chung
fa681a1800 [PARISC] Disable use of fpregs in pa_memcpy
Disable use of fpregs in pa_memcpy, and turn on the
-mdisable-fpregs flag.

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:48:34 -04:00
Kyle McMartin
7efe1611b2 [PARISC] Initialize serial spinlocks in superio.c
git commit 976ecd12b8 changed our locking
characteristics, and put the onus of spin_lock_init on superio.c.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:48:03 -04:00
Grant Grundler
91313d60d8 [PARISC] Add sync required after fdc to enforce insn ordering
PA20 arch book (page 7-52 and 7-55) indicate a "sync" is required after
the FDC "to enforce instruction ordering". And we want to make
sure FIC is executed after FDC has retired.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:47:40 -04:00
Grant Grundler
3aa0862ce7 [PARISC] Minor iosapic.c cleanup
minor cleanup: qualify constant with "UL"

Acked-by: "Hmamouche, Youssef" <youssef@ece.utexas.edu>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:47:04 -04:00
Grant Grundler
413059f28e [PARISC] Replace uses of __LP64__ with CONFIG_64BIT
2.6.12-rc4-pa3 s/__LP64__/CONFIG_64BIT/ and fixup config.h usage

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:46:48 -04:00
Grant Grundler
3499495205 [PARISC] Use work queue in LED/LCD driver instead of tasklet.
2.6.12-rc1-pa6 use work queue in LED/LCD driver instead of tasklet.

Main advantage is it allows use of msleep() in the led_LCD_driver to
"atomically" perform two MMIO writes (CMD, then DATA).
Lead to nice cleanup of the main led_work_func() and led_LCD_driver().
Kudos to David for being persistent.

From: David Pye <dmp@davidmpye.dyndns.org>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:46:18 -04:00
Jens Axboe
ba1f188cae [PARISC] Add new ioprio_{set,get} syscalls
add syscall entries for ioprio_set/get as per Jens Axboe.

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:45:57 -04:00
Grant Grundler
a366064c3f [PARISC] Update bitops from parisc tree
Optimize ext2_find_next_zero_bit. Gives about 25% perf improvement with a
rsync test with ext3.

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

fix ext3 performance - ext2_find_next_zero() was culprit.
Kudos to jejb for pointing out the the possibility that ext2_test_bit
and ext2_find_next_zero() may in fact not be enumerating bits in
the bitmap because of endianess. Took sparc64 implementation and
adapted it to our tree. I suspect the real problem is ffz() wants
an unsigned long and was getting garbage in the top half of the
unsigned int. Not confirmed but that's what I suspect.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Fix find_next_bit for 32-bit
Make masking consistent for bitops

From: Joel Soete <soete.joel@tiscali.be>
Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Add back incorrectly removed ext2_find_first_zero_bit definition

Signed-off-by: James Bottomley <jejb@parisc-linux.org>

Fixup bitops.h to use volatile for *_bit() ops

Based on this email thread:
       http://marc.theaimsgroup.com/?t=108826637900003

In a nutshell:
        *_bit() want use of volatile.
        __*_bit() are "relaxed" and don't use spinlock or volatile.

other minor changes:
o replaces hweight64() macro with alias to generic_hweight64() (Joel Soete)
o cleanup ext2* macros so (a) it's obvious what the XOR magic is about
  and (b) one version that works for both 32/64-bit.
o replace 2 uses of CONFIG_64BIT with __LP64__. bitops.h used both.
  I think header files that might go to user space should use
  something userspace will know about (__LP64__).

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Move SHIFT_PER_LONG to standard location for BITS_PER_LONG (asm/types.h)
and ditch the second definition of BITS_PER_LONG in bitops.h

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:45:22 -04:00
Stuart Brady
2464212f68 [PARISC] Fix parisc_setup_cache_timing to choose a better flush threshold
update comment about CAFL_STRIDE

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

Fixed a bug in parisc_setup_cache_timing() which caused it to calculate
a poor value for parisc_cache_flush_threshold.

Thanks to Joel Soete for spotting the bug.
Thanks to James Bottomley for pointing out the clean way to fix this.

Signed-off-by: Stuart Brady <sdb@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:44:14 -04:00
Kyle McMartin
f053725b89 [PARISC] Add ability for prctl to change unaligned trap behaviour
Add support for changing unaligned trap behaviour on a
per-thread basis.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:43:15 -04:00
Randolph Chung
99ac794799 [PARISC] Replace some calls to bl with b,l or bv to use longer offsets
convert some bl calls to b,l or bv to use longer offsets

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:42:57 -04:00
Stuart Brady
3a16568016 [PARISC] Update harmony from parisc tree
o Added a control for the input source (which can be either
  "line" or "mic")

o Mute the speaker/line-out/headphone outputs by default.

o Increased the buffer size from 10 pages to 16.

Signed-off-by: Stuart Brady <sdb@parisc-linux.org>

ALSA Harmony was resetting the capture position when
preparing the capture substream, which it shouldn't do.
This should fix the problem.

Signed-off-by: Stuart Brady <sdb@parisc-linux.org>

ALSA Harmony should no longer play junk (left in the buffers
from a previous stream) at the start of a new stream.

Implement the monitor mixer channel for ALSA Harmony.

Also prevent snd_harmony_volume_get from returning negative values.

Signed-off-by: Stuart Brady <sdb@parisc-linux.org>

Use the graveyard/silence buffers in ALSA Harmony.

Signed-off-by: Stuart Brady <sdb@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:42:38 -04:00
Randolph Chung
5cd55b0ede [PARISC] Take into account nullified insn and lock functions for profiling
export profile_pc() symbol - oprofile needs it when built as a module.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Take into account nullified insn and lock functions for profiling

This is needed at the end of functions; it is typical that the return
branch nullifies the next insn, which is in the next function. This
causes profiling data to show up against the "wrong" function.

We also count lock times against the locker. This is consistent with
other architectures.

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:42:18 -04:00
Matthew Wilcox
951a015013 [PARISC] Reorganize sticore probe routine to be a little less convoluted
Fix some whitespace issues
Reorganise parisc_device probe routine to be a little less convoluted
Use ->hpa.start instead of ->hpa

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:41:49 -04:00
Matthew Wilcox
14e256c107 [PARISC] Update spinlocks from parisc tree
Neaten up the CONFIG_PA20 ifdefs

More merge fixes, this time for SMP

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Prettify the CONFIG_DEBUG_SPINLOCK __SPIN_LOCK_UNLOCKED initializers.

Clean up some warnings with CONFIG_DEBUG_SPINLOCK enabled.

Fix build with spinlock debugging turned on. Patch is cleaner like this,
too.

Remove mandatory 16-byte alignment requirement on PA2.0 processors by
using the ldcw,CO completer. Provides a nice insn savings.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:41:25 -04:00
Grant Grundler
04d472dc83 [PARISC] Move pa_tlb_lock to tlb_flush.h
move pa_tlb_lock and it's primary consumers to tlb_flush.h
Future step will be to move spinlock_t definition out of system.h.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:40:24 -04:00
Grant Grundler
896a375623 [PARISC] Make sure use of RFI conforms to PA 2.0 and 1.1 arch docs
2.6.12-rc4-pa3 : first pass at making sure use of RFI conforms to
PA 2.0 arch pages F-4 and F-5, PA 1.1 Arch page 3-19 and 3-20.

The discussion revolves around all the rules for clearing PSW Q-bit.
The hard part is meeting all the rules for "relied upon translation".

.align directive is used to guarantee the critical sequence ends more than
8 instructions (32 bytes) from the end of page.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:40:07 -04:00
Grant Grundler
b2c1fe81df [PARISC] Allow STI_CONSOLE access to some FONTS
add || STI_CONSOLE to some of the basic FONTs. May need to get at
least one of them to default to "Y" for parisc.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:39:43 -04:00
Matthew Wilcox
92b919fe46 [PARISC] Update dino from parisc tree
Fix card-mode Dino crashes on 725 (and probably other Snake) systems.
Dino was coming up in fatal mode after a warm reboot.  Resetting Dino
brings it out of fatal mode, so do that if the status register indicates
we're in fatal mode.  Since this was never observed on any later systems,
I presume firmware does this for us on those.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Add debug statements in the cfg_read and cfg_write functions
Fix debug statements from the IRQ overhaul last winter
Rename dino_driver_callback() to dino_probe()

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:38:23 -04:00
Grant Grundler
86a61ee9c9 [PARISC] Update ccio-dma from parisc tree
revert use of %%sr0 in fdc asm.

Thanks to Joel Soete for pointing out this oversight.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.14-rc2-pa3 fdc/lci should be %r0 instead 0 for index (PA 1.1 compliance)
From: Joel Soete <soete.joel@tiscali.be>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Explain why we need insert_resource() instead of request_resource().

Fundementally, this is more convoluted for ccio driver because of
o legacy (HP-PB) transperant bridges.
o support for MMIO behind card-mode Dino (PCI)
o support for above bridges without ccio in the box

SBA driver doesn't have to worry about those issues.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Use insert_resource instead of request_resource now that the subdevices
will already have their resources claimed

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

re-enable use of "inline" for perf critical functions.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.12-rc4-pa5 fix sign extension of MMIO range

Fixes the problem of claiming a range that is disabled on 64-bit kernel:
ccio_init_resource() claimed CCIO bus address space (ffffffff00000000,
ffffffffffffffff)
also removes use of __FILE__.
Tested on both 32 and 64-bit systems by Joel.

From: Joel Soete <soete.joel@tiscali.be>
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.12-rc1-pa7 incorrect BUG_ON in ccio

ccio-dma.c line 1317 was preventing K-class with 4GB RAM from booting.
Any ccio machine with >=2GB of RAM would have (incorrectly) triggered this.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Convert to ioremap and __raw_read/write

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:37:43 -04:00
Grant Grundler
64908ad95c [PARISC] Update sba_iommu from parisc tree
revert use of %%sr0 in fdc asm.
Thanks to Joel Soete for pointing out this oversight.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.14-rc2-pa3 move "sync" outside the main loop that fills IO Pdir.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

remove explicit use of sr0 in fdc ops.
Thanks to Joel Soete for reminding me were I added those...

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.14-rc2-pa2 - make SBA more anal about invalidating pdir entries

Previous code cleared the valid flag a pdir entry but it did NOT
guarantee this change was visible to the PDIR before writing
the PCOM register. Ie the SBA could pick up a stale entry if
the write happened to hit the SBA before the cacheline was flushed
from the cache.

Long term, I think I want to make this a compile time flag.
Developement tree should enable anal pdir checking by default
and Debian can disable it with either a CONFIG option
or one-line patch. fdc/sync options can only negatively affect
performance though I haven't measure how much yet.
If someone can run netperf TCP_RR across gige and compare
-pa1 and -pa2, that would be sufficient.

Cleaned up the use of "fdc" to make sure it's using "kernel"
space id (specify sr0 but maps to sr4-7). It seems a bit fragile
to assume "sr1" gets loaded with KERNEL_SPACE which is how the
code works today.

Tested on 32 and 64-bit SMP kernels on j6k.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

remove PDC_NARROW from SBA and document history of PDC_NARROW a bit.
It will still show up in an older kernel's .config file.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

if/ifdef cleanups from Joel Soete.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

2.6.12-rc4-pa2  fix 32-bit support for Astro platforms
o Since my last SBA code change, SBA could allocate more than 1GB of IOVA
  space on Astro boxes with more than 1GB of RAM when running 32-bit kernel.
  This is bad since IOMMU can only talk to the first 1GB at most.
  Kudos to jejb for quickly spotting that bug.

o jejb also noted SBA should *always* reject DMA masks > 32-bits since
  DMA-mapping.txt indicates caller should try again with 32-bits.

o off-by-one error when comparing the mask to IOVA space size.

Signed-off-by: Grant Grundler <grundler@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:37:20 -04:00
Matthew Wilcox
53f01bba49 [PARISC] Convert parisc_device to use struct resource for hpa
Convert pa_dev->hpa from an unsigned long to a struct resource.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Fix up users of ->hpa to use ->hpa.start instead.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:36:40 -04:00
Matthew Wilcox
bdad1f836a [PARISC] Change the driver names so /sys/bus/parisc/drivers/ looks better
Make /sys/bus/parisc/drivers look better by cleaning up parisc_driver
names.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:36:23 -04:00
Matthew Wilcox
5658374766 [PARISC] Convert parisc_device tree to use struct device klists
Fix parse_tree_node.  much more needs to be done to fix this file.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Make drivers.c compile based on a patch from Pat Mochel.

From: Patrick Mochel <mochel@digitalimplant.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

Fix drivers.c to create new device tree nodes when no match is found.

Signed-off-by: Richard Hirst <rhirst@parisc-linux.org>

Do a proper depth-first search returning parents before children, using the
new klist infrastructure.

Signed-off-by: Richard Hirst <rhirst@parisc-linux.org>

Fixed parisc_device traversal so that pdc_stable works again
Fixed check_dev so it doesn't dereference a parisc_device until it
has verified the bus type

Signed-off-by: Randolph Chung <tausq@parisc-linux.org>

Convert pa_dev->hpa from an unsigned long to a struct resource.
Use insert_resource() instead of request_mem_region().
Request resources at bus walk time instead of driver probe time.
Don't release the resources as we don't have any hotplug parisc_device
support yet.
Add parisc_pathname() to conveniently get the textual representation
of the hwpath used in sysfs.
Inline the remnants of claim_device() into its caller.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

I noticed that some of the STI regions weren't showing up in iomem.
Reading the STI spec indicated that all STI devices occupy at least 32MB.
So check for STI HPAs and give them 32MB instead of 4kB.

Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-21 22:33:38 -04:00
Chris Wright
63172cb3d5 [PATCH] typo fix in last cpufreq powernow patch
Not sure how it slipped by, but here's a trivial typo fix for powernow.

Signed-off-by: Chris Wright <chrisw@osdl.org>
[ It's "nurter" backwards.. Maybe we have a hillbilly The Shining fan? ]
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 17:08:30 -07:00
Roland McGrath
25f407f0b6 [PATCH] Call exit_itimers from do_exit, not __exit_signal
When I originally moved exit_itimers into __exit_signal, that was the only
place where we could reliably know it was the last thread in the group
dying, without races.  Since then we've gotten the signal_struct.live
counter, and do_exit can reliably do group-wide cleanup work.

This patch moves the call to do_exit, where it's made without locks.  This
avoids the deadlock issues that the old __exit_signal code's comment talks
about, and the one that Oleg found recently with process CPU timers.

[ This replaces e03d13e985, which is why
  it was just reverted. ]

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 15:38:08 -07:00
Linus Torvalds
9465bee863 Revert "Fix cpu timers exit deadlock and races"
Revert commit e03d13e985, to be replaced
by a much nicer fix from Roland.
2005-10-21 15:36:00 -07:00
Dave Jones
0213df7431 [PATCH] cpufreq: fix pending powernow timer stuck condition
AMD recently discovered that on some hardware, there is a race condition
possible when a C-state change request goes onto the bus at the same
time as a P-state change request.

Both requests happen, but the southbridge hardware only acknowledges the
C-state change.  The PowerNow! driver is then stuck in a loop, waiting
for the P-state change acknowledgement.  The driver eventually times
out, but can no longer perform P-state changes.

It turns out the solution is to resend the P-state change, which the
southbridge will acknowledge normally.

Thanks to Johannes Winkelmann for reporting this and testing the fix.

Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 14:28:58 -07:00
David Gibson
3078fcc1d1 [PATCH] ppc64: Fix typo bug in iSeries hash code
This fixes a stupid typo bug in the iSeries hash table code.

When we place a hash PTE in the secondary bucket, instead of setting the
SECONDARY flag bit, as we should, we (redundantly) set the VALID flag.

This was introduced with the patch abolishing bitfields from the hash
table code.  Mea culpa, oops.  It hasn't been noticed until now because
in practice we don't hit the secondary bucket terribly often.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 12:24:41 -07:00
Linus Torvalds
2c86c83bf4 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2005-10-21 12:23:07 -07:00