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2010-04-09[S390] nss: add missing .previous statement to asm functionHeiko Carstens
The savesys_ipl_nss asm function is put into the .init.text section however it is missing a ".previous" section which would restore the previous section. Luckily all functions in early.c are init functions so it doesn't matter currently. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-09[S390] increase default size of vmalloc areaMartin Schwidefsky
The default size of the vmalloc area is currently 1 GB. The memory resource controller uses about 10 MB of vmalloc space per gigabyte of memory. That turns a system with more than ~100 GB memory unbootable with the default vmalloc size. It costs us nothing to increase the default size to some more adequate value, e.g. 128 GB. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-09[S390] s390: disable change bit overrideChristian Borntraeger
commit 6a985c6194017de2c062916ad1cd00dee0302c40 ([S390] s390: use change recording override for kernel mapping) deactivated the change bit recording for the kernel mapping to improve the performance. This works most of the time, but there are cases (e.g. kernel runs in home space, futex atomic compare xcmg) where we modify user memory with the kernel mapping instead of the user mapping. Instead of fixing these cases, this patch just deactivates change bit override to avoid future problems with other kernel code that might use the kernel mapping for user memory. CC: stable@kernel.org Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-09[S390] fix io_return critical section cleanupMartin Schwidefsky
If a machine check interrupts the io interrupt handler on one of the instructions between io_return and io_leave the critical section cleanup code will move the return psw to io_work_loop. By doing that the switch from the asynchronous interrupt stack to the process stack is skipped. If e.g. TIF_NEED_RESCHED is set things break because the scheduler is called with the asynchronous interrupts stack. Moving the psw back to io_return instead fixes the problem. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-09[S390] sclp_async: potential buffer overflowDan Carpenter
"len" hasn't been properly range checked so we shouldn't use it as an array offset. This can only be written to by root but it would still be annoying to accidentally write more than 3 characters and corrupt your memory. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-09[S390] arch/s390/kernel: Add missing unlockJulia Lawall
In the default case the lock is not unlocked. The return is converted to a goto, to share the unlock at the end of the function. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ expression E1; identifier f; @@ f (...) { <+... * spin_lock_irq (E1,...); ... when != E1 * return ...; ...+> } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-04-09ALSA: hda - Fix setup for ALC269vb amic and dmic modelsKailang Yang
Corrected HP and mic pins for ALC269vb amic and dmic models. Signed-off-by: Kailang Yang <kailang@realtek.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-04-09ALSA: hda - Fix auto-parser of ALC269vb for HP pin NID 0x21Kailang Yang
ALC269vb has an alternative HP pin 0x21 in addition. Fix the parser to recognize it. Signed-off-by: Kailang Yang <kailang@realtek.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-04-09ARM: 6043/1: AT91 slow-clock resume: Don't wait for a disabled PLL to lockAnders Larsen
at91 slow-clock resume: Don't wait for a disabled PLL to lock. We run into this problem with the PLLB on the at91: ohci-at91 disables the PLLB when going to suspend. The slowclock code however tries to do the same: It saves the PLLB register value and when restoring the value during resume, it waits for the PLLB to lock again. However the PLL will never lock and the loop would run into its timeout because the slowclock code just stored and restored an empty register. This fixes the problem by only restoring PLLA/PLLB when they were enabled at suspend time. Cc: Andrew Victor <avictor.za@gmail.com> Signed-off-by: Anders Larsen <al@alarsen.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-04-09cfq-iosched: Fix the incorrect timeslice accounting with forced_dispatchDivyesh Shah
When CFQ dispatches requests forcefully due to a barrier or changing iosched, it runs through all cfqq's dispatching requests and then expires each queue. However, it does not activate a cfqq before flushing its IOs resulting in using stale values for computing slice_used. This patch fixes it by calling activate queue before flushing reuqests from each queue. This is useful mostly for barrier requests because when the iosched is changing it really doesnt matter if we have incorrect accounting since we're going to break down all structures anyway. We also now expire the current timeslice before moving on with the dispatch to accurately account slice used for that cfqq. Signed-off-by: Divyesh Shah<dpshah@google.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-04-09Merge remote branch 'nouveau/for-airlied' of ../drm-nouveau-next into drm-linusDave Airlie
* 'nouveau/for-airlied' of ../drm-nouveau-next: (21 commits) drm/nouveau: bail out of auxch transaction if we repeatedly recieve defers drm/nv50: implement gpio set/get routines drm/nv50: parse/use some more de-magiced parts of gpio table entries drm/nouveau: store raw gpio table entry in bios gpio structs drm/nv40: Init some tiling-related PGRAPH state. drm/nv50: Add NVA3 support in ctxprog/ctxvals generator. drm/nv50: another dodgy DP hack drm/nv50: punt hotplug irq handling out to workqueue drm/nv50: preserve an unknown SOR_MODECTRL value for DP encoders drm/nv50: Allow using the NVA3 new compute class. drm/nv50: cleanup properly if PDISPLAY init fails drm/nouveau: fixup the init failure paths some more drm/nv50: fix instmem init on IGPs if stolen mem crosses 4GiB mark drm/nv40: add LVDS table quirk for Dell Latitude D620 drm/nv40: rework lvds table parsing drm/nouveau: detect vram amount once, and save the value drm/nouveau: remove some unused members from drm_nouveau_private drm/nouveau: Make use of TTM busy_placements. drm/nv50: add more 0x100c80 flushy magic drm/nv50: fix fbcon when framebuffer above 4GiB mark ...
2010-04-09drm/nouveau: bail out of auxch transaction if we repeatedly recieve defersBen Skeggs
There's one known case where we never stop recieving DEFER, and loop here forever. Lets not do that.. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: implement gpio set/get routinesBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: parse/use some more de-magiced parts of gpio table entriesBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nouveau: store raw gpio table entry in bios gpio structsBen Skeggs
And use our own version of the GPIO table for the INIT_GPIO opcode. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv40: Init some tiling-related PGRAPH state.Francisco Jerez
Fixes garbled 3D on an nv46 card. Reported-by: Francesco Marella <francesco.marella@gmail.com> Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: Add NVA3 support in ctxprog/ctxvals generator.Marcin Kościelnicki
Signed-off-by: Marcin Kościelnicki <koriakin@0x04.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: another dodgy DP hackBen Skeggs
Allows *some* DP cards to keep working in some corner cases that most people shouldn't hit. I hit it all the time with development, so this can stay for now. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: punt hotplug irq handling out to workqueueBen Skeggs
On DP outputs we'll likely end up running vbios init tables here, which may sleep. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: preserve an unknown SOR_MODECTRL value for DP encodersBen Skeggs
This value interacts with some registers we don't currently know how to program properly ourselves. The default of 5 that we were using matches what the VBIOS on early DP cards do, but later ones use 6, which would cause nouveau to program an incorrect mode on these chips. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: Allow using the NVA3 new compute class.Marcin Kościelnicki
Signed-off-by: Marcin Kościelnicki <koriakin@0x04.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: cleanup properly if PDISPLAY init failsBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nouveau: fixup the init failure paths some moreBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: fix instmem init on IGPs if stolen mem crosses 4GiB markBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv40: add LVDS table quirk for Dell Latitude D620Ben Skeggs
Should fix: https://bugzilla.redhat.com/show_bug.cgi?id=505132 https://bugzilla.redhat.com/show_bug.cgi?id=543091 https://bugzilla.redhat.com/show_bug.cgi?id=530425 https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/ +bug/539730 Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv40: rework lvds table parsingBen Skeggs
All indications seem to be that the version 0x30 table should be handled the same way as 0x40 (as used on G80), at least for the parts that we currently try use. This commit cleans up the parsing to make it clearer about what we're actually trying to achieve, and unifies the 0x30/0x40 parsing. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nouveau: detect vram amount once, and save the valueBen Skeggs
As opposed to repeatedly reading the amount back from the GPU every time we need to know the VRAM size. We should now fail to load gracefully on detecting no VRAM, rather than something potentially messy happening. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nouveau: remove some unused members from drm_nouveau_privateBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nouveau: Make use of TTM busy_placements.Francisco Jerez
Previously we were filling it the same as "placements", but in some cases there're valid alternatives that we were ignoring completely. Keeping a back-up memory type helps on several low-mem situations. Signed-off-by: Francisco Jerez <currojerez@riseup.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: add more 0x100c80 flushy magicBen Skeggs
Fixes the !vbo_fifo path in the 3D driver on certain chipsets. Still not really any good idea of what exactly the magic achieves, but it makes things work. While we're at it, in the PCIEGART path, flush on unbinding also. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: fix fbcon when framebuffer above 4GiB markBen Skeggs
This can't actually happen right now, but lets fix it anyway. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-09drm/nv50: Fix NEWCTX_DONE flag numberMarcin Kościelnicki
Signed-off-by: Marcin Kościelnicki <koriakin@0x04.net> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-04-08ath5k: fixup some merge damage for AR5211 IQ calibrationJohn W. Linville
Resolution of a merge conflict upstream accidentally removed a hunk of "ath5k: IQ calibration for AR5211 is slightly different", so restore it. Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08iwlwifi: need check for valid qos packet before freeWey-Yi Guy
For 4965, need to check it is valid qos frame before free, only valid QoS frame has the tid used to free the packets. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08loop: Update mtime when writing using aopsNikanth Karthikesan
Update mtime when writing to backing filesystem using the address space operations write_begin and write_end. Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-04-08mac80211_hwsim: add sw_scan sw_scan_completeLuis R. Rodriguez
Simple pre-scan and scan complete callbacks, this at least shows to me that mac80211 will issue two scans at the same time on the same wiphy. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath5k: add bounds check to pdadc tableBob Copeland
We check the bounds on pdadc once when correcting for negative curves but not when we later copy values from from the pdadc_tmp array, leading to a potential overrun. Although we shouldn't hit this case in practice, let's be consistent. Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Bob Copeland <me@bobcopeland.com> Acked-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath5k: fix race condition in tx desc processingBob Copeland
As pointed out by Benoit Papillault, there is a potential race condition between the host and the hardware in reading the next link in the transmit descriptor list: cpu0 hw tx for buf completed raise tx_ok interrupt process buf buf->ds_link = 0 read buf->ds_link This change checks txdp before processing a descriptor (if there are any subsequent descriptors) to see if hardware moved on. We'll then process this descriptor on the next tasklet. Signed-off-by: Bob Copeland <me@bobcopeland.com> Acked-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath5k: clean up queue manipulationBob Copeland
Review spotted a couple of strange invocations to ieee80211_wake_queues that could potentially cause problems: - queues are awakened in the calibration tasklet before phy calibration, and then again after calibration - queues are awakened inside reset when we're trying to drain the ath5k transmit queues, and again after reset is completed (in callers to ath5k_reset_wake). In both cases the first wake is unnecessary, so remove it. Signed-off-by: Bob Copeland <me@bobcopeland.com> Acked-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath5k: correct channel setting for 2.5 mhz spacingBob Copeland
These channels aren't selectable anyway, but our calculations for 2.5 mhz frequencies are incorrect. The value is supposed to be: (frequency - reference) * (10/25) i.e., divide by 2.5, but we were instead doing: (10 * frequency - reference) / 25. Additionally, the check for (frequency % 5 == 2) had an extra subtraction that wasn't in madwifi HAL. Signed-off-by: Bob Copeland <me@bobcopeland.com> Acked-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08mac80211: enhance tracingJohannes Berg
Enhance tracing by adding tracing for a variety of callbacks that the drivers call, and also for internal calls (currently limited to queue status). This can aid debugging what is going on in mac80211 in interaction with drivers, since we can now see what drivers call and not just what mac80211 calls in the driver. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08rt2x00: use rt2800_config_channel_rt3x for rt2872Helmut Schaa
rt2872 needs the same rf register setup as rt3070 and rt3090, hence use rt2800_config_channel_rt3x instead of rt2800_config_channel_rt2x. This change allows me to actually switch channels and hence scan all configured channels on the RT305x SoC platform (which uses a rt2872) here. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Tested-by: Luis Correia <luis.f.correia@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath9k: simplify AR9220 fixup code for AR_AN_TOP2 registerPavel Roskin
Don't modify ah->iniModes, it's supposed to be constant. Instead, apply the fixup when the data is written to the registers. Change ath9k_hw_init_eeprom_fix() to only determine whether the fixup is needed. This allows similteneous support for AR9220 cards that need AR_AN_TOP2 fixup (such as Ubiquiti SR71-12) and those that don't need it (D-Link DWA-552 rev A2). Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath9k_htc: Fix HTC layer memleakSujith
Messages that are generated by the HTC layer don't have any TX callback endpoints assigned to them. Consequently, the allocated SKBs are never freed. Fix this issue by handling this case in the HTC layer itself. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath9k_htc: Use anchors for REGOUT pipeSujith
hif_usb_regout_cb() frees the given URB, which is borked by design. Use an anchor to simplify URB management. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath9k_htc: Fix module unloading issueSujith
The maximum number of packets in a single buffer in stream mode is 10. The driver currently uses 8 - which caused stack corruption, in the absence of any kind of OOB checking. Fixing this to the correct value of 10 fixes the module unload issue. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Tested-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath9k_htc: Fix RX URB reference countSujith
RX URBs are automatically freed when the reference count drops to zero - this currently doesn't happen when usb_kill_anchored_urbs() is called during unload. Fix this by dropping the reference count by one during initial submission. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08ath9k_htc: Protect RX stream variablesSujith
Use a spin lock to prevent concurrent access to variables dealing with RX stream mode handling. Currently, no protection is implemented - which causes problems in RX. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08rt2x00: Enable powersaving by default again on rt2500usb.Gertjan van Wingerde
Now that the powersave issues on rt2500usb have been tackled, powersave can be enabled by default again. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-08mac80211: Moved mesh action codes to a more visible locationJavier Cardona
Grouped mesh action codes together with the other action codes in ieee80211.h. Signed-off-by: Javier Cardona <javier@cozybit.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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