Jonathan Woithe [Tue, 28 Feb 2006 10:47:47 +0000 (11:47 +0100)]
[ALSA] HDA/ALC260: 7/7 - add SPDIF enable to test model
Modules: HDA Codec driver
This patch adds mixer controls to the 'test' ALC260 model which allow the
user to selectively enable or disable the SPDIF output pins. This should
assist people identify digital outputs on machines which bring them to the
outside world.
Note that while the patch *should* work, I cannot personally verify it since
my laptop doesn't bring the SPDIF lines out.
As for the GPIO switches added in patch 4, these controls are currently
only compiled in if debug mode is selected.
Jonathan Woithe [Tue, 28 Feb 2006 10:46:14 +0000 (11:46 +0100)]
[ALSA] HDA/ALC260: 6/7 - Fujitsu/test model tweaks
Modules: HDA Codec driver
This patch is janitorial - it cleans up a number of cosmetic issues with
the 'fujitsu' and 'test' models. Issues addressed:
* spaces instead of tabs used for some indents,
* clarified/corrected selected comments.
Unlike a patch from earlier this week, this keeps both ADCs connected to
the mic1 pin widget by default. I believe this is the better default, since
some laptops don't bring the line1 widget to the outside world. Most (if
not all) do bring mic1 out though, so it seems to me that this default
should remain in place.
Jonathan Woithe [Tue, 28 Feb 2006 10:45:11 +0000 (11:45 +0100)]
[ALSA] HDA/ALC260: 5/7 - add 'acer' model
Modules: HDA Codec driver
This patch adds a new 'acer' model. It is based on work by Rimas and many
other dedicated Acer owners over the past few weeks (see bug number
1618) - kudos to them. This adds support for a variety of Acer laptops,
although we are still in the process of collecting pci/subsystem IDs to add.
There are still some potentially outstanding issues: there are reports that
the CD control might not yet be functional for example. However, the time
is probably right to get a 'first cut' into the kernel which can be refined
as more test reports come in.
From the reports by various Acer owners, this code allows them to record
from internal mics and external jacks. Playback also seems to work to all
external jacks and the internal speaker. The 'beep' control doesn't appear
functional at the moment.
This patch depends on the changes made in patch 3/7.
Jonathan Woithe [Tue, 28 Feb 2006 10:43:27 +0000 (11:43 +0100)]
[ALSA] HDA/ALC260: 4/7 - add GPIO switches to test model
Modules: HDA Codec driver
This patch adds 'test' model mixer switches for the GPIO controls found on
the ALC260. It has been found that some laptops (eg: Acer) can use these to
enable particular controls, so it would be useful to have access to these
via the 'test' model. It will make testing new models easy, especially if
certain outputs cannot be made to work any other way.
This patch *should* work, but because the GPIO pins don't do anything in
my laptop I cannot personally verify that all this works as expected.
Jonathan Woithe [Tue, 28 Feb 2006 10:38:35 +0000 (11:38 +0100)]
[ALSA] HDA/ALC260: 3/7 - generalise some structures
Modules: HDA Codec driver
This patch generalises a structure added for the 'fujitsu' model but which
is potentially useful for other models as well. It turns the
'alc260_fujitsu_adc_nids' array into 'alc260_dual_adc_nids'; for other
models which decide to utilise the dual ADC functionality there's really
no reason why they need to define their own list of ADC nids.
The 'fujitsu' model preset is adjusted accordingly.
This patch adds functionality which switches the input/output buffer enables
of retasking pins when the user changes their mode with the mode control.
This probably reduces noise *slightly* for recording compared to the case
where both input and output buffers were enabled simultaneously.
Jonathan Woithe [Tue, 28 Feb 2006 10:35:18 +0000 (11:35 +0100)]
[ALSA] HDA/ALC260: 1/7 - Fix test model input mux label
Modules: HDA Codec driver
This patch fixes input mux labels used for the ALC260 'test' model. This is
needed to avoid confusion which comes about because the two ADCs in the
ALC260 have slightly different mappings for their input selectors. Since
this is just the test model it's sufficient to simply report both options
where they exist. If a model comes along for which this becomes an issue,
the ALC260 input mux code will have to be extended to allow different mux
layouts for different ADCs.
Takashi Iwai [Wed, 22 Feb 2006 16:14:34 +0000 (17:14 +0100)]
[ALSA] Fix sleep in atomic in virmidi driver
Modules: ALSA sequencer
Debug: sleeping function called from invalid context at /usr/src/linux/include/linux/rwsem.h:43
in_atomic():1, irqs_disabled():0
[<f999d15e>] snd_seq_deliver_event+0xb4/0x1a8 [snd_seq]
[<f999d2be>] snd_seq_kernel_client_dispatch+0x6c/0x7c [snd_seq]
[<f93321fc>] snd_virmidi_output_trigger+0xca/0xe5 [snd_seq_virmidi]
Takashi Iwai [Thu, 16 Feb 2006 18:51:10 +0000 (19:51 +0100)]
[ALSA] hda-intel - Auto-correction of the DMA position mode
Modules: HDA Intel driver
Switch the method to measure the current DMA position automatically
from position-buffer mode to LPIB-read mode with a sanity check.
Some hardwares seems to have problem with the position buffer.
Takashi Iwai [Thu, 16 Feb 2006 17:17:58 +0000 (18:17 +0100)]
[ALSA] hda-intel - Automatic correction to single_cmd mode
Modules: HDA Codec driver,HDA Intel driver
Switch to single_cmd mode automatically as a fallback when CORB/RIRB
communication doesn't work well. It may make the driver working on
some devices with broken BIOS/ACPI support.
Jonathan Woithe [Thu, 9 Feb 2006 11:01:26 +0000 (12:01 +0100)]
[ALSA] hda: ALC260 test model implementation
Modules: HDA Codec driver
The following patch adds a 'test' ALC260 model specification to the
patch_realtek.c driver if CONFIG_SND_DEBUG is set. This is similar to the
'test' ALC880 model in that it sets up mixer controls for almost everything
to make it easier for people to test their laptop/soundcard when working out
what pin widgets are connected to which real-world devices.
This patch assumes my previous patch (adding the second PCM to the ALC260)
has previously been applied since it uses infrastructure added by that
patch.
In developing this patch it was found that not all retasking pins accept all
the modes - in particular, some ignore the VREFxx variants. The pin mode
control has therefore been tweaked to prevent this becoming a problem in
mixer applications.
Takashi Iwai [Thu, 9 Feb 2006 10:57:01 +0000 (11:57 +0100)]
[ALSA] hda: minor correction to fujitsu ALC260 initverbs
Modules: HDA Codec driver
Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
The following patch changes the initverbs associated with the output sum
widgets 0x08, 0x09 and 0x0a used with the fujitsu model in patch_realtek.c.
It is against alsa 1.0.11rc3.
Currently these widgets have their output muted, but a close reading of the
datasheet suggests that they don't actually have an output mute. They have
an *input* mute for each of their two inputs and a single output gain. This
patch therefore activates the input mutes and zeros the output gain. It has
not yet been tested but the above interpretation of the ALC260 datasheet
seems correct.
Jonathan Woithe [Thu, 9 Feb 2006 10:53:48 +0000 (11:53 +0100)]
[ALSA] hda: add PCM for 2nd ADC on ALC260
Modules: HDA Codec driver
The following patch against alsa 1.0.11rc3 creates a PCM device (pcm1c) for
the second ADC present on the ALC260 codec used by the hda driver. It also
defines a new mixer control allowing the mode of retasking pins to be set;
this means a user can (for example) designate the headphone jack to be a
second input. With this patch in place it is possible to do 4 channel
recording on laptops equipped with an ALC260 codec assuming both a stereo
line-in jack is provided in addition to a headphone jack.
Mixer controls are provided to allow the headphone jack to be switched as
an input. In addition, an (input only) mode control is configured for
the line-in jack to allow a bias voltage to be requested (VREF80 or VREF50)
so headsets based on condensor microphones have a chance of working.
This patch has been tested on a Fujitsu S7020 laptop and as such these
features are currently only configured for the 'fujitsu' model.
Clemens Ladisch [Tue, 7 Feb 2006 16:11:06 +0000 (17:11 +0100)]
[ALSA] usb-audio: rename QUIRK_MIDI_MIDITECH to QUIRK_MIDI_CME
Modules: USB generic driver
Rename QUIRK_MIDI_MIDITECH to QUIRK_MIDI_CME because Miditech keyboards
are built by CME and use the same protocol, and don't force a Miditech
product name for the USB ID used by both Miditech and CME UF-x
keyboards.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Jaroslav Kysela [Wed, 18 Jan 2006 10:50:40 +0000 (11:50 +0100)]
[ALSA] snd_pcm_format_name() is no longer exported
Modules: PCM Midlevel,USB generic driver
Because snd_pcm_format_name() function is used only for informational
purposes, it is no longer exported from the PCM midlevel to reduce
space and dependency. usbaudio module shows only numeric value for format.
Jaroslav Kysela [Wed, 18 Jan 2006 07:02:24 +0000 (08:02 +0100)]
[ALSA] ymfpci - make rear channel swap optional
Modules: YMFPCI driver
Added rear_swap module option / kernel parameter to configure the rear
channel swapping. Default value is enable to make the AC3 passthrough
working, but analog only users might revert the previous behaviour.
Mark Salazar [Mon, 16 Jan 2006 10:35:40 +0000 (11:35 +0100)]
[ALSA] #4/4 for Zoom Video - add Zoom Video support
Modules: ES18xx driver
Forth of 4 es18xx.c patches culminating in Zoom Video support.
This patch adds Zoom Video support for those chipsets that support it.
Testing:
This work was initially done on the source from the Debian Sarge ALSA
package, then tested
on an ES1879. I could not test the Zoom Video function for an ES1878 or
ES1869.
Patches were created against the Sarge code and then edited to apply
correctly to the
ALSA cvs code. Lastly the patched ALSA cvs code was test for successful
compilation.
No additional testing was done on the ALSA cvs version.
One quirk (noted in my comments below) is that apparently the datasheet
is wrong
for one of the ES1879 Zoom Video 'enable' bits, because
1) if you set this bit it messes up PCM playback (speaker_test play a
lower frequency)
2) even if you don't set this bit Zoom Video still works.
I added a control to toggle the bit on just in case there might be a
version of the
ES1879 that requires it, but I expect noone will need it.
Signed-off-by: Mark Salazar <markTheCoder@justmyself.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Mark Salazar [Mon, 16 Jan 2006 10:33:52 +0000 (11:33 +0100)]
[ALSA] #3/4 for Zoom Video - change Hardware Volume interrupt handling
Modules: ES18xx driver
Third of 4 es18xx.c patches culminating in Zoom Video support.
This patch changes the Hardware Volume support to reflect the fact that
not all of the
supported chipsets have seperate registers dedicated to the Hardware
Volume inputs. Although
all the chipsets can generate an HWV interrupt whenever a Hardware
Volume input is received
only those with seperate HWV registers can split the HWV registers from
the Master volume
registers.
Testing:
This work was initially done on the source from the Debian Sarge ALSA
package, then tested
on an ES1879 and an ES1878 machine. Patches were created against the
Sarge code and then edited
to apply correctly to the ALSA cvs code. Lastly the patched ALSA cvs
code was test for
successful compilation. No additional testing was done on the ALSA cvs
version.
Signed-off-by: Mark Salazar <markTheCoder@justmyself.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Mark Salazar [Mon, 16 Jan 2006 10:31:14 +0000 (11:31 +0100)]
[ALSA] #2/4 for Zoom Video - resolve number of record sources
Modules: ES18xx driver
Second of 4 es18xx.c patches culminating in Zoom Video support.
This patch changes the 'record source' mux routines to reflect the fact
that not all of the
supported chipsets have 8 possible inputs. Some have 4 and some have 5.
Testing:
This work was initially done on the source from the Debian Sarge ALSA
package, then tested
on an ES1879 and an ES1878 machine. Patches were created against the
Sarge code and then edited
to apply correctly to the ALSA cvs code. Lastly the patched ALSA cvs
code was test for
successful compilation. No additional testing was done on the ALSA cvs
version.
Signed-off-by: Mark Salazar <markTheCoder@justmyself.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Mark Salazar [Mon, 16 Jan 2006 10:29:09 +0000 (11:29 +0100)]
[ALSA] #1/4 for Zoom Video - resolve common vs chipset specific mixer controls
Modules: ES18xx driver
First of 4 es18xx.c patches culminating in Zoom Video support.
While adding support for Zoom Video to the es18xx driver I found some of
the mixer controls
were wrong. Since you guys went to the trouble of supplying the
datasheets for the supported
chipsets I did a review of all of them and tried to get es18xx.c to
accurately reflect the
proper mixer controls for each chipset. If the datasheets are wrong then
so are my patches.
This first patch moves some controls from the common-to-all-chipsets array
'snd_es18xx_base_controls' to a chipset-specific array and adds code to
manage that new array.
Also while testing on my ES1878 test machine I discovered it needed a
couple of udelays in
the identify function so those are in this patch as well.
Testing:
This work was initially done on the source from the Debian Sarge ALSA
package, then tested
on an ES1879 and an ES1878 machine. Patches were created against the
Sarge code and then edited
to apply correctly to the ALSA cvs code. Lastly the patched ALSA cvs
code was test for
successful compilation. No additional testing was done on the ALSA cvs
version.
Signed-off-by: Mark Salazar <markTheCoder@justmyself.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
1) The verbose procfs code for the PCM midlevel and usb audio
can be removed now (more patches will follow).
CONFIG_SND_VERBOSE_PROCFS
2) The PCM OSS plugin system can be also compiled optionaly.
CONFIG_SND_PCM_OSS_PLUGINS
Brent Cook [Tue, 10 Jan 2006 13:27:20 +0000 (14:27 +0100)]
[ALSA] Add support for EDIROL UM-3ex
Modules: USB generic driver
This is my naive attempt at adding ALSA device support. The attached
patch provides support for the EDIROL UM-3ex. This is a 3-port USB midi
interface with a built-in USB hub and the ability to chain 2 other
UM-3x's in a master-slave configuration. I only have one, so I do not
know how this works in practice.
Though this is a 3-port device, I had to throw in that 4th 'Control' interface
to the definition in order to make the 3rd port work. If I set in/out_cables
to 0x000b, a 3rd interface appears on the driver, but it does nothing.
Changing it to 0x000f allows the 3rd interface to work, but of course
interface 4 does not work because it does not exist.
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: (230 commits)
[SPARC64]: Update defconfig.
[SPARC64]: Fix 2 bugs in huge page support.
[SPARC64]: CONFIG_BLK_DEV_RAM fix
[SPARC64]: Optimized TSB table initialization.
[SPARC64]: Allow CONFIG_MEMORY_HOTPLUG to build.
[SPARC64]: Use SLAB caches for TSB tables.
[SPARC64]: Don't kill the page allocator when growing a TSB.
[SPARC64]: Randomize mm->mmap_base when PF_RANDOMIZE is set.
[SPARC64]: Increase top of 32-bit process stack.
[SPARC64]: Top-down address space allocation for 32-bit tasks.
[SPARC64] bbc_i2c: Fix cpu check and add missing module license.
[SPARC64]: Fix and re-enable dynamic TSB sizing.
[SUNSU]: Fix missing spinlock initialization.
[TG3]: Do not try to access NIC_SRAM_DATA_SIG on Sun parts.
[SPARC64]: First cut at VIS simulator for Niagara.
[SPARC64]: Fix system type in /proc/cpuinfo and remove bogus OBP check.
[SPARC64]: Add SMT scheduling support for Niagara.
[SPARC64]: Fix 32-bit truncation which broke sparsemem.
[SPARC64]: Move over to sparsemem.
[SPARC64]: Fix new context version SMP handling.
...
Linus Torvalds [Mon, 20 Mar 2006 18:32:33 +0000 (10:32 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6:
JFS: add uid, gid, and umask mount options
JFS: Take logsync lock before testing mp->lsn
JFS: kzalloc conversion
JFS: Add missing file from fa3241d24cf1182b0ffb6e4d412c3bc2a2ab7bf6
JFS: Use the kthread_ API
JFS: Fix regression. fsck complains if symlinks do not have INLINEEA attribute
JFS: ext2 inode attributes for jfs
JFS: semaphore to mutex conversion.
JFS: make buddy table static
JFS: Add back directory i_size calculations for legacy partitions
Linus Torvalds [Mon, 20 Mar 2006 18:30:31 +0000 (10:30 -0800)]
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (150 commits)
[PATCH] ipw2100: Update version ipw2100 stamp to 1.2.2
[PATCH] ipw2100: move mutex.h include from ipw2100.c to ipw2100.h
[PATCH] ipw2100: semaphore to mutexes conversion
[PATCH] ipw2100: Fix radiotap code gcc warning
[PATCH] ipw2100: add radiotap headers to packtes captured in monitor mode
[PATCH] ipw2x00: expend Copyright to 2006
[PATCH] drivers/net/wireless/ipw2200.c: fix an array overun
[PATCH] ieee80211: Don't update network statistics from off-channel packets.
[PATCH] ipw2200: Update ipw2200 version stamp to 1.1.1
[PATCH] ipw2200: switch to the new ipw2200-fw-3.0 image format
[PATCH] ipw2200: wireless extension sensitivity threshold support
[PATCH] ipw2200: Enables the "slow diversity" algorithm
[PATCH] ipw2200: Set a meaningful silence threshold value
[PATCH] ipw2200: export `debug' module param only if CONFIG_IPW2200_DEBUG
[PATCH] ipw2200: Change debug level for firmware error logging
[PATCH] ipw2200: Filter unsupported channels out in ad-hoc mode
[PATCH] ipw2200: Fix ipw_sw_reset() implementation inconsistent with comment
[PATCH] ipw2200: Fix rf_kill is activated after mode change with 'disable=1'
[PATCH] ipw2200: remove the WPA card associates to non-WPA AP checking
[PATCH] ipw2200: Add signal level to iwlist scan output
...
Linus Torvalds [Mon, 20 Mar 2006 18:28:51 +0000 (10:28 -0800)]
Merge branch 'block-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/block
* 'block-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/block:
[PATCH] fix rmmod problems with elevator attributes, clean them up
[PATCH] elevator_t lifetime rules and sysfs fixes
[PATCH] noise removal: cfq-iosched.c
[PATCH] don't bother with refcounting for cfq_data
[PATCH] fix sysfs interaction and lifetime rules handling for queues
[PATCH] regularize blk_cleanup_queue() use
[PATCH] fix cfq_get_queue()/ioprio_set(2) races
[PATCH] deal with rmmod/put_io_context() races
[PATCH] stop elv_unregister() from rogering other iosched's data, fix locking
[PATCH] stop cfq from pinning queue down
[PATCH] make cfq_exit_queue() prune the cfq_io_context for that queue
[PATCH] fix the exclusion for ioprio_set()
[PATCH] keep sync and async cfq_queue separate
[PATCH] switch to use of ->key to get cfq_data by cfq_io_context
[PATCH] stop leaking cfq_data in cfq_set_request()
[PATCH] fix cfq hash lookups
[PATCH] fix locking in queue_requests_store()
[PATCH] fix double-free in blk_init_queue_node()
[PATCH] don't do exit_io_context() until we know we won't be doing any IO
David S. Miller [Sun, 19 Mar 2006 07:55:11 +0000 (23:55 -0800)]
[SPARC64]: Optimized TSB table initialization.
We only need to write an invalid tag every 16 bytes,
so taking advantage of this can save many instructions
compared to the simple memset() call we make now.
A prefetching implementation is implemented for sun4u
and a block-init store version if implemented for Niagara.
The next trick is to be able to perform an init and
a copy_tsb() in parallel when growing a TSB table.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 17 Mar 2006 22:41:03 +0000 (14:41 -0800)]
[SPARC64]: Top-down address space allocation for 32-bit tasks.
Currently allocations are very constrained for 32-bit processes.
It grows down-up from 0x70000000 to 0xf0000000 which gives about
2GB of stack + dynamic mmap() space.
So support the top-down method, and we need to override the
generic helper function in order to deal with D-cache coloring.
With these changes I was able to squeeze out a mmap() just over
3.6GB in size in a 32-bit process.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 16 Mar 2006 10:02:32 +0000 (02:02 -0800)]
[SPARC64]: Fix and re-enable dynamic TSB sizing.
This is good for up to %50 performance improvement of some test cases.
The problem has been the race conditions, and hopefully I've plugged
them all up here.
1) There was a serious race in switch_mm() wrt. lazy TLB
switching to and from kernel threads.
We could erroneously skip a tsb_context_switch() and thus
use a stale TSB across a TSB grow event.
There is a big comment now in that function describing
exactly how it can happen.
2) All code paths that do something with the TSB need to be
guarded with the mm->context.lock spinlock. This makes
page table flushing paths properly synchronize with both
TSB growing and TLB context changes.
3) TSB growing events are moved to the end of successful fault
processing. Previously it was in update_mmu_cache() but
that is deadlock prone. At the end of do_sparc64_fault()
we hold no spinlocks that could deadlock the TSB grow
sequence. We also have dropped the address space semaphore.
While we're here, add prefetching to the copy_tsb() routine
and put it in assembler into the tsb.S file. This piece of
code is quite time critical.
There are some small negative side effects to this code which
can be improved upon. In particular we grab the mm->context.lock
even for the tsb insert done by update_mmu_cache() now and that's
a bit excessive. We can get rid of that locking, and the same
lock taking in flush_tsb_user(), by disabling PSTATE_IE around
the whole operation including the capturing of the tsb pointer
and tsb_nentries value. That would work because anyone growing
the TSB won't free up the old TSB until all cpus respond to the
TSB change cross call.
I'm not quite so confident in that optimization to put it in
right now, but eventually we might be able to and the description
is here for reference.
This code seems very solid now. It passes several parallel GCC
bootstrap builds, and our favorite "nut cruncher" stress test which is
a full "make -j8192" build of a "make allmodconfig" kernel. That puts
about 256 processes on each cpu's run queue, makes lots of process cpu
migrations occur, causes lots of page table and TLB flushing activity,
incurs many context version number changes, and it swaps the machine
real far out to disk even though there is 16GB of ram on this test
system. :-)
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 9 Mar 2006 00:09:19 +0000 (16:09 -0800)]
[SPARC64]: Add SMT scheduling support for Niagara.
The mapping is a simple "(cpuid >> 2) == core" for now.
Later we'll add more sophisticated code that will walk
the sun4v machine description and figure this out from
there.
We should also add core mappings for jaguar and panther
processors.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 8 Mar 2006 23:57:03 +0000 (15:57 -0800)]
[SPARC64]: Fix 32-bit truncation which broke sparsemem.
The page->flags manipulations done by the D-cache dirty
state tracking was broken because the constants were not
marked with "UL" to make them 64-bit, which means we were
clobbering the upper 32-bits of page->flags all the time.
This doesn't jive well with sparsemem which stores the
section and indexing information in the top 32-bits of
page->flags.
This is yet another sparc64 bug which has been with us
forever.
While we're here, tidy up some things in bootmem_init()
and paginig_init():
1) Pass min_low_pfn to init_bootmem_node(), it's identical
to (phys_base >> PAGE_SHIFT) but we should use consistent
with the variable names we print in CONFIG_BOOTMEM_DEBUG
2) max_mapnr, although no longer used, was being set
inaccurately, we shouldn't subtract pfn_base any more.
3) All the games with phys_base in the zones_*[] arrays
we pass to free_area_init_node() are no longer necessary.
Thanks to Josh Grebe and Fabbione for the bug reports
and testing. Fix also verified locally on an SB2500
which had a memory layout that triggered the same problem.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 7 Mar 2006 06:50:44 +0000 (22:50 -0800)]
[SPARC64]: Fix new context version SMP handling.
Don't piggy back the SMP receive signal code to do the
context version change handling.
Instead allocate another fixed PIL number for this
asynchronous cross-call. We can't use smp_call_function()
because this thing is invoked with interrupts disabled
and a few spinlocks held.
Also, fix smp_call_function_mask() to count "cpus" correctly.
There is no guarentee that the local cpu is in the mask
yet that is exactly what this code was assuming.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 7 Mar 2006 03:59:50 +0000 (19:59 -0800)]
[SPARC64]: Bulletproof MMU context locking.
1) Always spin_lock_init() in init_context(). The caller essentially
clears it out, or copies the mm info from the parent. In both
cases we need to explicitly initialize the spinlock.
2) Always do explicit IRQ disabling while taking mm->context.lock
and ctx_alloc_lock.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 3 Mar 2006 05:50:47 +0000 (21:50 -0800)]
[SPARC64]: More SUN4V cpu mondo bug fixing.
This cpu mondo sending interface isn't all that easy to
use correctly...
We were clearing out the wrong bits from the "mask" after getting
something other than EOK from the hypervisor.
It turns out the hypervisor can just be resent the same cpu_list[]
array, with the 0xffff "done" entries still in there, and it will do
the right thing.
So don't update or try to rebuild the cpu_list[] array to condense it.
This requires the "forward_progress" check to be done slightly
differently, but this new scheme is less bug prone than what we were
doing before.
Signed-off-by: David S. Miller <davem@davemloft.net>
projects / mv-sheeva.git / log