James Bottomley [Sat, 16 Apr 2005 22:25:54 +0000 (15:25 -0700)]
[PATCH] add Big Endian variants of ioread/iowrite
In the new io infrastructure, all of our operators are expecting the
underlying device to be little endian (because the PCI bus, their main
consumer, is LE).
However, there are a fair few devices and busses in the world that are
actually Big Endian. There's even evidence that some of these BE bus and
chip types are attached to LE systems. Thus, there's a need for a BE
equivalent of our io{read,write}{16,32} operations.
The attached patch adds this as io{read,write}{16,32}be. When it's in,
I'll add the first consume (the 53c700 SCSI chip driver).
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
maximilian attems [Sat, 16 Apr 2005 22:25:53 +0000 (15:25 -0700)]
[PATCH] efi: eliminate bad section references
Randy please double check especially this one.
there may be a better solution.
Fix efi section references:
remove __initdata for struct efi efi_phys
and struct efi_memory_map memmap
Error: ./arch/i386/kernel/efi.o .text refers to
000000d3 R_386_32
.init.data
Error: ./arch/i386/kernel/efi.o .text refers to
000000ff R_386_32
.init.data
efi_memmap_walk (which is not __init nor static)
accesses both efi_phys and memmap.
Signed-off-by: maximilian attems <janitor@sternwelten.at>
Acked-by: Randy Dunlap <rddunlap@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
maximilian attems [Sat, 16 Apr 2005 22:25:52 +0000 (15:25 -0700)]
[PATCH] hd: eliminate bad section references
Fix hd section references:
make parse_hd_setup() __init
Error: ./drivers/ide/legacy/hd.o .text refers to
00000943 R_386_PC32
.init.text
Signed-off-by: maximilian attems <janitor@sternwelten.at>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
maximilian attems [Sat, 16 Apr 2005 22:25:51 +0000 (15:25 -0700)]
[PATCH] pnpbios: eliminate bad section references
one of the last buildcheck errors on i386, thanks Randy again for double
checking.
Fix pnpbios section references:
make dmi_system_id pnpbios_dmi_table __initdata
Error: ./drivers/pnp/pnpbios/core.o .data refers to
00000100 R_386_32
.init.text
Error: ./drivers/pnp/pnpbios/core.o .data refers to
0000012c R_386_32
.init.text
Signed-off-by: maximilian attems <janitor@sternwelten.at>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul E. McKenney [Sat, 16 Apr 2005 22:25:51 +0000 (15:25 -0700)]
[PATCH] Fix comment in list.h that refers to nonexistent API
The hlist_for_each_entry_rcu() comment block refers to a nonexistent
hlist_add_rcu() API, needs to change to hlist_add_head_rcu().
Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Daniel McNeil [Sat, 16 Apr 2005 22:25:50 +0000 (15:25 -0700)]
[PATCH] Direct IO async short read fix
The direct I/O code is mapping the read request to the file system block. If
the file size was not on a block boundary, the result would show the the read
reading past EOF. This was only happening for the AIO case. The non-AIO case
truncates the result to match file size (in direct_io_worker). This patch
does the same thing for the AIO case, it truncates the result to match the
file size if the read reads past EOF.
When I/O completes the result can be truncated to match the file size
without using i_size_read(), thus the aio result now matches the number of
bytes read to the end of file.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Dave Hansen [Sat, 16 Apr 2005 22:25:49 +0000 (15:25 -0700)]
[PATCH] undo do_readv_writev() behavior change
Bugme bug 4326: http://bugme.osdl.org/show_bug.cgi?id=4326 reports:
executing the systemcall readv with Bad argument
->len == -1) it gives out error EFAULT instead of EINVAL
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Christoph Hellwig [Sat, 16 Apr 2005 22:25:48 +0000 (15:25 -0700)]
[PATCH] officially deprecate register_ioctl32_conversion
These have been deprecated since ->compat_ioctl when in, thus only a short
deprecation period. There's four users left: i2o_config, s390/z90crypy,
s390/dasd and s390/zfcp and for the first two patches are about to be
submitted to get rid of it.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Christoph Hellwig [Sat, 16 Apr 2005 22:25:47 +0000 (15:25 -0700)]
[PATCH] kill #ifndef HAVE_ARCH_GET_SIGNAL_TO_DELIVER in signal.c
Now that no architectures defines HAVE_ARCH_GET_SIGNAL_TO_DELIVER anymore
this can go away. It was a transitional hack only.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Niu YaWei [Sat, 16 Apr 2005 22:25:47 +0000 (15:25 -0700)]
[PATCH] quota: possible bug in quota format v2 support
Don't put root block of quota tree to the free list (when quota file is
completely empty). That should not actually happen anyway (somebody should
get accounted for the filesystem root and so quota file should never be
empty) but better prevent it here than solve magical quota file
corruption.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jan Kara [Sat, 16 Apr 2005 22:25:46 +0000 (15:25 -0700)]
[PATCH] quota: fix possible oops on quotaoff
Remove dquot structures from quota file on quotaon - quota code does not
expect them to be there.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bernard Blackham [Sat, 16 Apr 2005 22:25:45 +0000 (15:25 -0700)]
[PATCH] ext2 corruption - regression between 2.6.9 and 2.6.10
Whilst trying to stress test a Promise SX8 card, we stumbled across
some nasty filesystem corruption in ext2. Our tests involved
creating an ext2 partition, mounting, running several concurrent
fsx's over it, umounting, and fsck'ing, all scripted[1]. The fsck
would always return with errors.
This regression was traced back to a change between 2.6.9 and
2.6.10, which moves the functionality of ext2_put_inode into
ext2_clear_inode. The attached patch reverses this change, and
eliminated the source of corruption.
Mingming Cao <cmm@us.ibm.com> said:
I think his patch for ext2 is correct. The corruption on ext3 is not the same
issue he saw on ext2. I believe that's the race between discard reservation
and reservation in-use that we already fixed it in 2.6.12- rc1.
For the problem related to ext2, at the time when we design reservation for
ext3, we decide we only need to discard the reservation at the last file
close, so we have ext3_discard_reservation on iput_final- >ext3_clear_inode.
The ext2 handle discard preallocation differently at that time, it discard the
preallocation at each iput(), not in input_final(), so we think it's
unnecessary to thrash it so frequently, and the right thing to do, as we did
for ext3 reservation, discard preallocation on last iput(). So we moved the
ext2_discard_preallocation from ext2_put_inode(0 to ext2_clear_inode.
Since ext2 preallocation is doing pre-allocation on disk, so it is possible
that at the unmount time, someone is still hold the reference of the inode, so
the preallocation for a file is not discard yet, so we still mark those blocks
allocated on disk, while they are not actually in the inode's block map, so
fsck will catch/fix that error later.
This is not a issue for ext3, as ext3 reservation(pre-allocation) is done in
memory.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Christoph Hellwig [Sat, 16 Apr 2005 22:25:44 +0000 (15:25 -0700)]
[PATCH] fix up newly added jsm driver
- plug various leaks and use after frees in the remove and
initialization failure path (some still left)
- remove useless global list of boards and use pci_set_drvdata instead
- unobsfucate init path by merging functions together
- kill various totally useless state variables
- .. probably more I forgot
Note that the tty part still generates lots of sparse warnings and there's
still a totally useless layer of function pointer indirections, but maybe
someone else will fix that bit up.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Ken Chen [Sat, 16 Apr 2005 22:25:43 +0000 (15:25 -0700)]
[PATCH] use cheaper elv_queue_empty when unplug a device
In function __generic_unplug_device(), kernel can use a cheaper function
elv_queue_empty() instead of more expensive elv_next_request to find
whether the queue is empty or not. blk_run_queue can also made conditional
on whether queue's emptiness before calling request_fn().
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bert Wesarg [Sat, 16 Apr 2005 22:25:43 +0000 (15:25 -0700)]
[PATCH] fix module_param_string() calls
This patch fix 3 calls to module_param_string() in
driver/media/video/tuner-core.c and drivers/media/video/tda9887.c. In all
three places, the len and the perm parameter was switched.
Signed-off-by: Bert Wesarg <wesarg@informatik.uni-halle.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bert Wesarg [Sat, 16 Apr 2005 22:25:42 +0000 (15:25 -0700)]
[PATCH] kernel/param.c: don't use .max when .num is NULL in param_array_set()
there seems to be a bug, at least for me, in kernel/param.c for arrays with
.num == NULL. If .num == NULL, the function param_array_set() uses &.max
for the call to param_array(), wich alters the .max value to the number of
arguments. The result is, you can't set more array arguments as the last
time you set the parameter.
example:
# a module 'example' with
# static int array[10] = { 0, };
# module_param_array(array, int, NULL, 0644);
$ insmod example.ko array=1,2,3
$ cat /sys/module/example/parameters/array
1,2,3
$ echo "4,3,2,1" > /sys/module/example/parameters/array
$ dmesg | tail -n 1
kernel: array: can take only 3 arguments
Signed-off-by: Bert Wesarg <wesarg@informatik.uni-halle.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Bharath Ramesh [Sat, 16 Apr 2005 22:25:41 +0000 (15:25 -0700)]
[PATCH] AYSNC IO using singals other than SIGIO
A question on sigwaitinfo based IO mechanism in multithreaded applications.
I am trying to use RT signals to notify me of IO events using RT signals
instead of SIGIO in a multithreaded applications. I noticed that there was
some discussion on lkml during november 1999 with the subject of the
discussion as "Signal driven IO". In the thread I noticed that RT signals
were being delivered to the worker thread. I am running 2.6.10 kernel and
I am trying to use the very same mechanism and I find that only SIGIO being
propogated to the worker threads and RT signals only being propogated to
the main thread and not the worker threads where I actually want them to be
propogated too. On further inspection I found that the following patch
which I have attached solves the problem.
I am not sure if this is a bug or feature in the kernel.
Roland McGrath <roland@redhat.com> said:
This relates only to fcntl F_SETSIG, which is a Linux extension. So there is
no POSIX issue. When changing various things like the normal SIGIO signalling
to do group signals, I was concerned strictly with the POSIX semantics and
generally avoided touching things in the domain of Linux inventions. That's
why I didn't change this when I changed the call right next to it. There is
no reason I can see that F_SETSIG-requested signals shouldn't use a group
signal like normal SIGIO does. I'm happy to ACK this patch, there is nothing
wrong with its change to the semantics in my book. But neither POSIX nor I
care a whit what F_SETSIG does.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jens Axboe [Sat, 16 Apr 2005 22:25:40 +0000 (15:25 -0700)]
[PATCH] possible use-after-free of bio
There is a possibility that a bio will be accessed after it has been freed
on SCSI. It happens if you submit a bio with BIO_SYNC marked and the
auto-unplugging kicks the request_fn, SCSI re-enables interrupts in-between
so if the request completes between the add_request() in __make_request()
and the bio_sync() call, we could be looking at a dead bio. It's a slim
race, but it has been triggered in the Real World.
So assign bio_sync() to a local variable instead.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paolo 'Blaisorblade' Giarrusso [Sat, 16 Apr 2005 22:25:39 +0000 (15:25 -0700)]
[PATCH] uml: fix compilation for __CHOOSE_MODE addition
I had added the __CHOOSE_MODE syntax to fix some warnings with newer GCC's
in the uml-fix-cond-expr-as-lvalues-warning patch.
Here is the update from the version I sent to make it work also when only
one mode (TT or SKAS) is enabled.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Alexander Nyberg [Sat, 16 Apr 2005 22:25:39 +0000 (15:25 -0700)]
[PATCH] swsusp: SMP fix
Fix some smp_processor_id-in-preemptible warnings
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:38 +0000 (15:25 -0700)]
[PATCH] fix few remaining u32 vs. pm_message_t problems
This fixes remaining u32 vs. pm_message_t confusions in -rc2-mm3. [There
are usb changes, too; they went to Greg on his request.]
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:37 +0000 (15:25 -0700)]
[PATCH] fix u32 vs. pm_message_t in rest of the tree
This fixes u32 vs. pm_message_t confusion in remaining places. Fortunately
there's few of them.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:36 +0000 (15:25 -0700)]
[PATCH] fix u32 vs. pm_message_t in driver/video
This fixes u32 vs. pm_message_t confusion in drivers/video. Should change no
code.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:35 +0000 (15:25 -0700)]
[PATCH] fix u32 vs. pm_message_t in drivers/
-rc2-mm1 still contains few places where u32 and pm_message_t. This fixes
drivers/serial [should change no code].
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:34 +0000 (15:25 -0700)]
[PATCH] power/video.txt: update documentation with more systems
This updates video.txt documentation with information about few more
systems.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:34 +0000 (15:25 -0700)]
[PATCH] u32 vs. pm_message_t in ppc and radeon
This fixes pm_message_t vs. u32 confusion in ppc and aty (I *hope* that's
basically radeon code...). I was not able to test most of these, but I'm
not really changing anything, so it should be okay.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:33 +0000 (15:25 -0700)]
[PATCH] fix u32 vs. pm_message_t in PCI, PCIE
This fixes drivers/pci (mostly pcie stuff).
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:32 +0000 (15:25 -0700)]
[PATCH] fix u32 vs. pm_message_t in drivers/macintosh
I thought I'm done with fixing u32 vs. pm_message_t ... unfortunately that
turned out not to be the case as Russel King pointed out. Here are fixes for
drivers/macintosh.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:31 +0000 (15:25 -0700)]
[PATCH] Fix u32 vs. pm_message_t in x86-64
I thought I'm done with fixing u32 vs. pm_message_t ... unfortunately that
turned out not to be the case... Here are fixes x86-64.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:30 +0000 (15:25 -0700)]
[PATCH] fix pm_message_t vs. u32 in alsa
I thought I'm done with fixing u32 vs. pm_message_t ... unfortunately that
turned out not to be the case as Russel King pointed out. This fixes last few
bits in alsa.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:29 +0000 (15:25 -0700)]
[PATCH] fix u32 vs. pm_message_t in drivers/mmc,mtd,scsi
This fixes u32 vs. pm_message_t in drivers/mmc, drivers/mtd and
drivers/scsi.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:28 +0000 (15:25 -0700)]
[PATCH] fix u32 vs. pm_message_t in drivers/message
This fixes u32 vs. pm_message_t in drivers/message.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:27 +0000 (15:25 -0700)]
[PATCH] fix u32 vs. pm_message_t in drivers/media
Here are fixes for drivers/media.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:26 +0000 (15:25 -0700)]
[PATCH] fix u32 vs. pm_message_t in pcmcia
This fixes u32 vs. pm_message_t in pcmcia.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:25 +0000 (15:25 -0700)]
[PATCH] u32 vs. pm_message_t fixes for drivers/net
This fixes remaining u32s in drivers/ net.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:24 +0000 (15:25 -0700)]
[PATCH] Fix u32 vs. pm_message_t in drivers/char
Here are fixes for drivers/char.
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Pavel Machek [Sat, 16 Apr 2005 22:25:24 +0000 (15:25 -0700)]
[PATCH] pm_message_t: more fixes in common and i386
I thought I'm done with fixing u32 vs. pm_message_t ... unfortunately
that turned out not to be the case as Russel King pointed out. Here are
fixes for Documentation and common code (mainly system devices).
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Yoshinori Sato [Sat, 16 Apr 2005 22:25:21 +0000 (15:25 -0700)]
[PATCH] h8300 header update
- page.h: fix build error
- unistd.h: _syscall macro cleanup.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Siddha, Suresh B [Sat, 16 Apr 2005 22:25:20 +0000 (15:25 -0700)]
[PATCH] x86, x86_64: dual core proc-cpuinfo and sibling-map fix
- broken sibling_map setup in x86_64
- grouping all the core and HT related cpuinfo fields.
We are reasonably sure that adding new cpuinfo fields after "siblings" field,
will not cause any app failure. Thats because today's /proc/cpuinfo
format is completely different on x86, x86_64 and we haven't heard of any
x86 app breakage because of this issue. Grouping these fields will
result in more or less common format on all architectures (ia64, x86 and
x86_64) and will cause less confusion.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:19 +0000 (15:25 -0700)]
[PATCH] x86_64: Switch SMP bootup over to new CPU hotplug state machine
This will allow hotplug CPU in the future and in general cleans up a lot of
crufty code. It also should plug some races that the old hackish way
introduces. Remove one old race workaround in NMI watchdog setup that is not
needed anymore.
I removed the old total sum of bogomips reporting code. The brag value of
BogoMips has been greatly devalued in the last years on the open market.
Real CPU hotplug will need some more work, but the infrastructure for it is
there now.
One drawback: the new TSC sync algorithm is less accurate than before. The
old way of zeroing TSCs is too intrusive to do later. Instead the TSC of the
BP is duplicated now, which is less accurate.
akpm:
- sync_tsc_bp_init seems to have the sense of `init' inverted.
- SPIN_LOCK_UNLOCKED is deprecated - use DEFINE_SPINLOCK.
Cc: <rusty@rustcorp.com.au>
Cc: <mingo@elte.hu>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:18 +0000 (15:25 -0700)]
[PATCH] x86_64: Rename the extended cpuid level field
It was confusingly named.
Signed-off-by: Andi Kleen <ak@suse.de>
DESC
x86_64: Switch SMP bootup over to new CPU hotplug state machine
EDESC
From: "Andi Kleen" <ak@suse.de>
This will allow hotplug CPU in the future and in general cleans up a lot of
crufty code. It also should plug some races that the old hackish way
introduces. Remove one old race workaround in NMI watchdog setup that is not
needed anymore.
I removed the old total sum of bogomips reporting code. The brag value of
BogoMips has been greatly devalued in the last years on the open market.
Real CPU hotplug will need some more work, but the infrastructure for it is
there now.
One drawback: the new TSC sync algorithm is less accurate than before. The
old way of zeroing TSCs is too intrusive to do later. Instead the TSC of the
BP is duplicated now, which is less accurate.
Cc: <rusty@rustcorp.com.au>
Cc: <mingo@elte.hu>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:17 +0000 (15:25 -0700)]
[PATCH] x86_64: Add acpi_skip_timer_override option
Add acpi_skip_timer_override option. It was missing previously.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:17 +0000 (15:25 -0700)]
[PATCH] x86_64: Rewrite exception stack backtracing
Exceptions and hardware interrupts can, to a certain degree, nest, so when
attempting to follow the sequence of stacks used in order to dump their
contents this has to be accounted for. Also, IST stacks have their tops
stored in the TSS, so there's no need to add the stack size to get to their
ends.
Minor changes from AK.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:16 +0000 (15:25 -0700)]
[PATCH] x86_64: Final support for AMD dual core
Clean up the code greatly. Now uses the infrastructure from the Intel dual
core patch Should fix a final bug noticed by Tyan of not detecting the nodes
correctly in some corner cases.
Patch for x86-64 and i386
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:15 +0000 (15:25 -0700)]
[PATCH] x86_64: add support for Intel dual-core detection and displaying
Appended patch adds the support for Intel dual-core detection and displaying
the core related information in /proc/cpuinfo.
It adds two new fields "core id" and "cpu cores" to x86 /proc/cpuinfo and the
"core id" field for x86_64("cpu cores" field is already present in x86_64).
Number of processor cores in a die is detected using cpuid(4) and this is
documented in IA-32 Intel Architecture Software Developer's Manual (vol 2a)
(http://developer.intel.com/design/pentium4/manuals/index_new.htm#sdm_vol2a)
This patch also adds cpu_core_map similar to cpu_sibling_map.
Slightly hacked by AK.
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:14 +0000 (15:25 -0700)]
[PATCH] x86_64: Remove duplicated syscall entry.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:13 +0000 (15:25 -0700)]
[PATCH] x86_64: Keep only a single debug notifier chain
Calling a notifier three times in the debug handler does not make much sense,
because a debugger can figure out the various conditions by itself. Remove
the additional calls to DIE_DEBUG and DIE_DEBUGSTEP completely.
This matches what i386 does now.
This also makes sure interrupts are always still disabled when calling a
debugger, which prevents:
BUG: using smp_processor_id() in preemptible [
00000001] code: tpopf/1470
caller is post_kprobe_handler+0x9/0x70
Call Trace:<
ffffffff8024f10f>{smp_processor_id+191} <
ffffffff80120e69>{post_kpro
be_handler+9}
<
ffffffff80120f7a>{kprobe_exceptions_notify+58}
<
ffffffff80144fc0>{notifier_call_chain+32} <
ffffffff80110daf>{do_debug+335}
<
ffffffff8010f513>{debug+127} <EOE>
on preemptible debug kernels with kprobes when single stepping in user space.
This was probably a bug even on non preempt kernels, this function was
supposed to be running with interrupts off according to a comment there.
Note to third part debugger maintainers: please double check your debugger can
still single step.
Cc: <prasanna@in.ibm.com>
Cc: <jbeulich@novell.com>
Cc: <kaos@sgi.com>
Cc: <jim.houston@ccur.com>
Cc: <jfv@bluesong.net>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:13 +0000 (15:25 -0700)]
[PATCH] x86_64: Use the e820 hole to map the IOMMU/AGP aperture
This might save memory on some Opteron systems without AGP bridge.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:12 +0000 (15:25 -0700)]
[PATCH] x86_64: Port over e820 gap detection from i386
Look for gaps in the e820 memory map to put PCI resources in.
This hopefully fixes problems with the PCI code assigning 32bit BARs MMIO
resources which are >32bit.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Siddha, Suresh B [Sat, 16 Apr 2005 22:25:11 +0000 (15:25 -0700)]
[PATCH] x86_64-always-use-cpuid-
80000008-to-figure-out-mtrr fix
We need to use the size_and_mask in set_mtrr_var_ranges(which is called
while programming MTRR's for AP's
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:10 +0000 (15:25 -0700)]
[PATCH] x86_64: Always use CPUID
80000008 to figure out MTRR address space size
It doesn't make sense to only do this only for AMD K8.
This would support future CPUs with extended address spaces properly.
For i386 and x86-64
Cc: <davej@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:10 +0000 (15:25 -0700)]
[PATCH] x86_64: Remove excessive stack allocation in MCE code with large NR_CPUS
Remove excessive stack allocation in MCE code with large NR_CPUS
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:09 +0000 (15:25 -0700)]
[PATCH] x86_64: Use the extended RIP MSR for machine check reporting if available.
They are rumoured to be much more reliable than the RIP in the stack frame on
P4s.
This is a borderline case because the code is very simple. Please note there
are no plans to add support for all the MCE register MSRs.
Cc: <venkatesh.pallipadi@intel.com>
Cc: <racing.guo@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:08 +0000 (15:25 -0700)]
[PATCH] x86_64: Correct wrong comment in local.h
local_t is actually a win over atomic_t because it does not need lock
prefixes.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:07 +0000 (15:25 -0700)]
[PATCH] x86_64: Don't assume future AMD CPUs have K8 compatible performance counters
The NMI watchdog code did this incorrectly
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:06 +0000 (15:25 -0700)]
[PATCH] x86_64: Make kernel math errors a die() now
There were no reports about the previous warning for FPU exceptions in the
kernel, so make it a die() now.
Also improve the error messages slightly.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:05 +0000 (15:25 -0700)]
[PATCH] x86_64: Support constantly ticking TSCs
On Intel Noconas the TSC ticks with a constant frequency. Don't scale the
factor used by udelay when cpufreq changes the frequency.
This generalizes an earlier patch by Intel for this.
Cc: <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:05 +0000 (15:25 -0700)]
[PATCH] x86_64: Remove unused macro in preempt support
Remove unused macro in preempt support
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:04 +0000 (15:25 -0700)]
[PATCH] x86_64: Fix a small missing schedule race
Could lead to a lost reschedule event when the process already rescheduled on
exception exit, and needs it again while still being in the kernel. Unlikely
case though.
Also remove one redundant cli in another entry.S path.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:03 +0000 (15:25 -0700)]
[PATCH] x86_64: Regularize exception stack handling
This fixes various issues in the return path for "paranoid"
handlers (= running on a private exception stack that act like NMIs).
Generalize previous hack to switch back to process stack for
scheduling/signal handling purposes.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:02 +0000 (15:25 -0700)]
[PATCH] x86_64: Call do_notify_resume unconditionally in entry.S
This removes some unnecessary code in the assembly files.
Matches i386 behaviour.
In addition don't clear the work check mask after work has been done.
This fixes some theoretical signal/other event losses.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:01 +0000 (15:25 -0700)]
[PATCH] x86_64: Minor microoptimization in syscall entry slow path
Minor microoptimization in syscall entry slow path
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:00 +0000 (15:25 -0700)]
[PATCH] x86_64: Fix interaction of single stepping with debuggers
Ported from i386/Linus
Fix another TF corner case. Need to do the special TF handling for all
signals to make debuggers happy
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:25:00 +0000 (15:25 -0700)]
[PATCH] x86_64: Dump stack and prevent recursion on early fault
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:24:59 +0000 (15:24 -0700)]
[PATCH] x86_64: Use a common function to find code segment bases
To avoid some code duplication.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:24:58 +0000 (15:24 -0700)]
[PATCH] x86_64: Handle programs that set TF in user space using popf while single stepping
Ported from i386/Linus
Still won't handle other TF changing instructions like IRET or LAHF.
Prefix handling must be double checked...
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:24:57 +0000 (15:24 -0700)]
[PATCH] x86_64: Some fixes for single step handling
Ported from i386/Linus
Be more careful with TF handling to fix some copy protection codes in Wine
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:24:56 +0000 (15:24 -0700)]
[PATCH] x86_64: clean up ptrace single-stepping
Ported from i386 (originally from Linus)
clean up ptrace single-stepping, make PT_DTRACE exact.
(This makes the naming of "DTRACE" purely historical, since
on x86 it now means "single step in progress").
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:24:56 +0000 (15:24 -0700)]
[PATCH] x86_64: Make IRDA devices are not really ISA devices not depend on CONFIG_ISA
This allows to use them on x86-64
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:24:55 +0000 (15:24 -0700)]
[PATCH] x86_64: Use a VMA for the 32bit vsyscall
Use a real VMA to map the 32bit vsyscall page
This interacts better with Hugh's upcomming VMA walk optimization
Also removes some ugly special cases.
Code roughly modelled after the ppc64 vdso version from Ben Herrenschmidt.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
akpm@osdl.org [Sat, 16 Apr 2005 22:24:54 +0000 (15:24 -0700)]
[PATCH] x86_64 show_stack(): call touch_nmi_watchdog
I had strange NMI watchdog timeouts running sysrq-T across 9600-baud serial.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jason Davis [Sat, 16 Apr 2005 22:24:53 +0000 (15:24 -0700)]
[PATCH] x86_64 genapic update
x86_64 genapic mechanism should be aware of machines that use physical APIC
mode regardless of how many clusters/processors are detected.
ACPI 3.0 FADT makes this determination very simple by providing a feature
flag "force_apic_physical_destination_mode" to state whether the machine
unconditionally uses physical APIC mode.
Unisys' next generation x86_64 ES7000 will need to utilize this FADT
feature flag in order to boot the x86_64 kernel in the correct APIC mode.
This patch has been tested on both x86_64 commodity and ES7000 boxes.
Signed-off-by: Jason Davis <jason.davis@unisys.com>
Acked-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:24:52 +0000 (15:24 -0700)]
[PATCH] x86_64: disable interrupts during SMP bogomips checking
Port over a i386 kludge from rusty to x86-64
I don't think it is a full solution, but the upcomming smp bootup rewrite
will solve it.
This fixes BUGs at bootup on bigger x86-64 systems.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:24:51 +0000 (15:24 -0700)]
[PATCH] x86-64: Fix BUG()
Use the correct file name in BUG()
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Andi Kleen [Sat, 16 Apr 2005 22:24:51 +0000 (15:24 -0700)]
[PATCH] x86-64/i386: Revert cpuinfo siblings behaviour back to 2.6.10
Only display physical id/siblings when there are siblings or dual core.
In 2.6.11 I accidentially broke it and it was always displaying these
fields But for compatibility to all these /proc parsers around it is better
to do it in the old way again.
Noticed by Suresh Siddha
Cc: <Suresh.b.siddha@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Roland McGrath [Sat, 16 Apr 2005 22:24:50 +0000 (15:24 -0700)]
[PATCH] x86-64: i386 vDSO: add PT_NOTE segment
Use the i386 PT_NOTE segment in x86_64 as well.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Roland McGrath [Sat, 16 Apr 2005 22:24:48 +0000 (15:24 -0700)]
[PATCH] i386 vDSO: add PT_NOTE segment
This patch adds an ELF note to the vDSO giving the LINUX_VERSION_CODE
value. Having this in the vDSO lets the dynamic linker avoid the `uname'
syscall it now always does at startup to ascertain the kernel ABI
available.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Roland McGrath [Sat, 16 Apr 2005 22:24:46 +0000 (15:24 -0700)]
[PATCH] i386: Use loaddebug macro consistently
This moves the macro loaddebug from asm-i386/suspend.h to
asm-i386/processor.h, which is the place that makes sense for it to be
defined, removes the extra copy of the same macro in
arch/i386/kernel/process.c, and makes arch/i386/kernel/signal.c use the
macro in place of its expansion.
This is a purely cosmetic cleanup for the normal i386 kernel. However, it
is handy for Xen to be able to just redefine the loaddebug macro once
instead of also changing the signal.c code.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jason Gaston [Sat, 16 Apr 2005 22:24:45 +0000 (15:24 -0700)]
[PATCH] i2c-i801: I2C patch for Intel ESB2
This patch adds the Intel ESB2 DID's to the i2c-i801.c and Kconfig files for
I2C support.
Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jason Gaston [Sat, 16 Apr 2005 22:24:45 +0000 (15:24 -0700)]
[PATCH] ahci: AHCI mode SATA patch for Intel ESB2
This patch adds the Intel ESB2 DID's to the ahci.c file for AHCI mode SATA
support.
Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com>
Cc: <linux-scsi@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jason Gaston [Sat, 16 Apr 2005 22:24:44 +0000 (15:24 -0700)]
[PATCH] ata_piix: IDE mode SATA patch for Intel ESB2
This patch adds the Intel ESB2 DID's to the ata_piix.c and quirks.c file for
IDE mode SATA support.
Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jason Gaston [Sat, 16 Apr 2005 22:24:43 +0000 (15:24 -0700)]
[PATCH] intel8x0: AC'97 audio patch for Intel ESB2
This patch adds the Intel ESB2 DID's to the intel8x0.c file for AC'97 audio
support.
Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jason Gaston [Sat, 16 Apr 2005 22:24:42 +0000 (15:24 -0700)]
[PATCH] piix: IDE PATA patch for Intel ESB2
This patch adds the Intel ESB2 DID's to the piix.c file for IDE PATA support.
Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Jason Gaston [Sat, 16 Apr 2005 22:24:41 +0000 (15:24 -0700)]
[PATCH] irq and pci_ids: patch for Intel ESB2
This patch adds the Intel ESB2 DID's to the irq.c and pci_ids.h files.
Signed-off-by: Jason Gaston <Jason.d.gaston@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Yoichi Yuasa [Sat, 16 Apr 2005 22:24:41 +0000 (15:24 -0700)]
[PATCH] mips: remove #include <linux/audit.h> two times
This patch removes #include <linux/audit.h>. Because it includes it two
times.
Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Yoichi Yuasa [Sat, 16 Apr 2005 22:24:40 +0000 (15:24 -0700)]
[PATCH] mips: update VR41xx CPU-PCI bridge support
This patch updates NEC VR4100 series CPU-PCI bridge support.
Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Yoichi Yuasa [Sat, 16 Apr 2005 22:24:39 +0000 (15:24 -0700)]
[PATCH] mips: remove obsolete VR41xx RTC function from vr41xx.h
This patch had removed obsolete VR41xx RTC function from vr41xx.h . I
forgot to put this change in "update VR41xx RTC support".
Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Olof Johansson [Sat, 16 Apr 2005 22:24:38 +0000 (15:24 -0700)]
[PATCH] ppc64: no prefetch for NULL pointers
For prefetches of NULL (as when walking a short linked list), PPC64 will in
some cases take a performance hit. The hardware needs to do the TLB walk,
and said walk will always miss, which means (up to) two L2 misses as
penalty. This seems to hurt overall performance, so for NULL pointers skip
the prefetch alltogether.
Signed-off-by: Olof Johansson <olof@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Anton Blanchard [Sat, 16 Apr 2005 22:24:37 +0000 (15:24 -0700)]
[PATCH] ppc64: remove -fno-omit-frame-pointer
During some code inspection using gcc 4.0 I noticed a stack frame was being
created for a number of functions that didnt require it. For example:
c0000000000df944 <._spin_unlock>:
c0000000000df944: fb e1 ff f0 std r31,-16(r1)
c0000000000df948: f8 21 ff c1 stdu r1,-64(r1)
c0000000000df94c: 7c 3f 0b 78 mr r31,r1
c0000000000df950: 7c 20 04 ac lwsync
c0000000000df954: e8 21 00 00 ld r1,0(r1)
c0000000000df958: 38 00 00 00 li r0,0
c0000000000df95c: 90 03 00 00 stw r0,0(r3)
c0000000000df960: eb e1 ff f0 ld r31,-16(r1)
c0000000000df964: 4e 80 00 20 blr
It turns out we are adding -fno-omit-frame-pointer to ppc64 which is
causing the above behaviour. Removing that flag results in much better
code:
c0000000000d5b30 <._spin_unlock>:
c0000000000d5b30: 7c 20 04 ac lwsync
c0000000000d5b34: 38 00 00 00 li r0,0
c0000000000d5b38: 90 03 00 00 stw r0,0(r3)
c0000000000d5b3c: 4e 80 00 20 blr
We dont require a frame pointer to debug on ppc64, so remove it.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Benjamin Herrenschmidt [Sat, 16 Apr 2005 22:24:37 +0000 (15:24 -0700)]
[PATCH] ppc64: remove bogus f50 hack in prom.c
The code that parses the OF device tree contains an old bogus hack which
was killed a long time ago on ppc32, but survived in ppc64. It was
supposed to help with a problem on the f50 which is ... a 32 bits machine
:) Additionally, that hack is causing problems, so let's just get rid of
it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Benjamin Herrenschmidt [Sat, 16 Apr 2005 22:24:36 +0000 (15:24 -0700)]
[PATCH] ppc64: Detect altivec via firmware on unknown CPUs
This patch adds detection of the Altivec capability of the CPU via the
firmware in addition to the cpu table. This allows newer CPUs that aren't
in the table to still have working altivec support in the kernel.
It also fixes a problem where if a CPU isn't recognized as having altivec
features, and takes an altivec unavailable exception due to userland
issuing altivec instructions, the kernel would happily enable it and
context switch the registers ... but not all of them (it would basically
forget vrsave). With this patch, the kernel will refuse to enable altivec
when the feature isn't detected for the CPU (SIGILL).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Benjamin Herrenschmidt [Sat, 16 Apr 2005 22:24:35 +0000 (15:24 -0700)]
[PATCH] ppc64: Improve mapping of vDSO
This patch reworks the way the ppc64 is mapped in user memory by the kernel
to make it more robust against possible collisions with executable
segments. Instead of just whacking a VMA at 1Mb, I now use
get_unmapped_area() with a hint, and I moved the mapping of the vDSO to
after the mapping of the various ELF segments and of the interpreter, so
that conflicts get caught properly (it still has to be before
create_elf_tables since the later will fill the AT_SYSINFO_EHDR with the
proper address).
While I was at it, I also changed the 32 and 64 bits vDSO's to link at
their "natural" address of 1Mb instead of 0. This is the address where
they are normally mapped in absence of conflict. By doing so, it should be
possible to properly prelink one it's been verified to work on glibc.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Paul Mackerras [Sat, 16 Apr 2005 22:24:34 +0000 (15:24 -0700)]
[PATCH] ppc64: fix export of wrong symbol
In arch/ppc64/kernel/ppc_ksyms.c, we are still exporting
flush_icache_range, but that has been changed to be an inline in
include/asm-ppc64/cacheflush.h which calls __flush_icache_range (defined in
arch/ppc64/kernel/misc.S).
This patch changes the export to __flush_icache_range, thus allowing
modules to use the inline flush_icache_range.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Benjamin Herrenschmidt [Sat, 16 Apr 2005 22:24:33 +0000 (15:24 -0700)]
[PATCH] ppc64: Fix semantics of __ioremap
This patch fixes ppc64 __ioremap() so that it stops adding implicitely
_PAGE_GUARDED when the cache is not writeback, and instead, let the callers
provide the flag they want here. This allows things like framebuffers to
explicitely request a non-cacheable and non-guarded mapping which is more
efficient for that type of memory without side effects. The patch also
fixes all current callers to add _PAGE_GUARDED except btext, which is fine
without it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Benjamin Herrenschmidt [Sat, 16 Apr 2005 22:24:32 +0000 (15:24 -0700)]
[PATCH] ppc64: very basic desktop g5 sound support
This patch hacks the current PowerMac Alsa driver to add some basic support
of analog sound output to some desktop G5s. It has severe limitations
though:
- Only 44100Khz 16 bits
- Only work on G5 models using a TAS3004 analog code, that is early
single CPU desktops and all dual CPU desktops at this date, but none
of the more recent ones like iMac G5.
- It does analog only, no digital/SPDIF support at all, no native
AC3 support
Better support would require a complete rewrite of the driver (which I am
working on, but don't hold your breath), to properly support the diversity
of apple sound HW setup, including dual codecs, several i2s busses, all the
new codecs used in the new machines, proper clock switching with digital,
etc etc etc...
This patch applies on top of the other PowerMac sound patches I posted in
the past couple of days (new powerbook support and sleep fixes).
Note: This is a FAQ entry for PowerMac sound support with TI codecs: They
have a feature called "DRC" which is automatically enabled for the internal
speaker (at least when auto mute control is enabled) which will cause your
sound to fade out to nothing after half a second of playback if you don't
set a proper "DRC Range" in the mixer. So if you have a problem like that,
check alsamixer and raise your DRC Range to something reasonable.
Note2: This patch will also add auto-mute of the speaker when line-out jack
is used on some earlier desktop G4s (and on the G5) in addition to the
headphone jack. If that behaviour isn't what you want, just disable
auto-muting and use the manual mute controls in alsamixer.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Benjamin Herrenschmidt [Sat, 16 Apr 2005 22:24:32 +0000 (15:24 -0700)]
[PATCH] pmac: Improve sleep code of tumbler driver
This patch improves the behaviour of the "tumbler/snapper" driver used on
newer PowerMacs during sleep. It properly set the HW mutes to shut down
amplifiers and does an analog shutdown of the codec. That might improve
power consumption during sleep on a number of machines.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Benjamin Herrenschmidt [Sat, 16 Apr 2005 22:24:31 +0000 (15:24 -0700)]
[PATCH] pmac: sound support for latest laptops
This patch hacks the current Alsa snd-powermac driver to add support for
recent machine models with the tas3004 chip, that is basically new laptop
models. The Mac Mini is _NOT_ yet supported by this patch (soon soon ...).
The G5s (iMac or Desktop) will need the rewritten sound driver on which
I'm working on (I _might_ get a hack for analog only on some G5s on the
current driver, but no promise).
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Benjamin Herrenschmidt [Sat, 16 Apr 2005 22:24:30 +0000 (15:24 -0700)]
[PATCH] ppc32: MV643XX ethernet is an option for Pegasos
This patch allows Kconfig to build the MV643xx ethernet driver on Pegasos
(CONFIG_PPC_MULTIPLATFORM) and adds what I think is a missing fix from
Dale's batch, that is remove SA_INTERRUPT and add SA_SHIRQ in there as the
interrupt is shared if I understand things correctly.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Fabio Massimo Di Nitto <fabbione@ubuntu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Benoit Boissinot [Sat, 16 Apr 2005 22:24:29 +0000 (15:24 -0700)]
[PATCH] ppc32: fix compilation error in arch/ppc/syslib/open_pic_defs.h
make defconfig give the following error on ppc (gcc-4):
arch/ppc/syslib/open_pic.c:36: error: static declaration of ‘OpenPIC’ follows non-static declaration
arch/ppc/syslib/open_pic_defs.h:175: error: previous declaration of ‘OpenPIC’ was here
Signed-Off-By: Benoit Boissinot <benoit.boissinot@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Benoit Boissinot [Sat, 16 Apr 2005 22:24:28 +0000 (15:24 -0700)]
[PATCH] ppc32: fix compilation error in include/asm/prom.h
make defconfig give the following error on ppc (gcc-4):
arch/ppc/syslib/prom_init.c:120: error: static declaration of ‘prom_display_paths’ follows non-static declaration
include/asm/prom.h:17: error: previous declaration of ‘prom_display_paths’ was here
arch/ppc/syslib/prom_init.c:122: error: static declaration of ‘prom_num_displays’ follows non-static declaration
include/asm/prom.h:18: error: previous declaration of ‘prom_num_displays’ was here
Signed-Off-By: Benoit Boissinot <benoit.boissinot@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>