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* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-054-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* [PATCH] irq-flags: sound: Use the new IRQF_ constantsThomas Gleixner2006-07-021-1/+1
| | | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] 64bit resource: fix up printks for resources in sound driversGreg Kroah-Hartman2006-06-271-1/+2
| | | | | | | | | | This is needed if we wish to change the size of the resource structures. Based on an original patch from Vivek Goyal <vgoyal@in.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [ALSA] fix potential NULL pointer deref in snd_sb8dsp_midi_interrupt()Jesper Juhl2006-06-221-13/+7
| | | | | | | | | | | | | First testing if a pointer is NULL and if it is (or might be), proceeding with code that dereferences that same pointer is clearly a mistake. This happens in sound/isa/sb/sb8_midi.c::snd_sb8dsp_midi_interrupt() The patch below reworks the code so this unfortunate case doesn't happen. Also remove some blank comments. Found by the Coverity checker as bug #367 Patch is compile testted only due to lack of hardware. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Fix invalid __init in ALSA ISA driversTakashi Iwai2006-06-221-11/+11
| | | | | | | Replaced invalid __init with __devinit in snd-sbawe and snd-opl3sa2 drivers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove zero-initialization of static variablesTakashi Iwai2006-06-222-2/+2
| | | | | | | Removed zero-initializations of static variables. A tiny optimization. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove unneeded read/write_size fields in proc text opsTakashi Iwai2006-06-221-1/+1
| | | | | | | Remove unneeded read/write_size fields in proc text ops. snd_info_set_text_ops() is fixed, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] unregister platform device again if probe was unsuccessfulRene Herman2006-04-122-0/+8
| | | | | | | | | Unregister the platform device again if the probe was unsuccessful. This restores the behaviour of not loading the driver on probe() failure. Signed-off-by: Rene Herman <rene.herman@keyaccess.nl> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] continue on IS_ERR from platform device registrationRene Herman2006-04-122-20/+8
| | | | | | | | | | Continue with the next one on error from device registration. This would seem the correct thing to do, even if it's not the probe() error that we're getting. Signed-off-by: Rene Herman <rene.herman@keyaccess.nl> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [PATCH] PNP: adjust pnp_register_card_driver() signature: sb16Bjorn Helgaas2006-03-271-6/+8
| | | | | | | | | | | | Remove the assumption that pnp_register_card_driver() returns the number of devices claimed. And fix some __init/__devinit issues. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Jaroslav Kysela <perex@suse.cz> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] PNP: adjust pnp_register_card_driver() signature: es968Bjorn Helgaas2006-03-271-3/+9
| | | | | | | | | | | | Remove the assumption that pnp_register_card_driver() returns the number of devices claimed. And fix some __init/__devinit issues. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Jaroslav Kysela <perex@suse.cz> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ALSA] sound/isa/sb/sb_mixer.c double kfreeDave Jones2006-03-221-3/+1
| | | | | | | | | | | Modules: SB drivers snd_ctl_add() already does the free on error. Coverity bug #957 Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Fix check of enable module optionTakashi Iwai2006-03-222-3/+5
| | | | | | | Fix the check of enable module option in probe of platform_device drivers. It shouldn't break the loop but just ignore if enable[i] is false. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] semaphore -> mutex (ISA part)Ingo Molnar2006-03-221-6/+6
| | | | | | | | | | | Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] sb16 - Fix duplicated PnP entryTakashi Iwai2006-01-221-2/+2
| | | | | | | | Modules: SB16/AWE driver Fix the duplicated PnP entry between sb16 and sbawe drivers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] unregister platform devicesClemens Ladisch2006-01-032-14/+44
| | | | | | | Call platform_device_unregister() for all platform devices that we've registered. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [ALSA] es968 - Add PM supportTakashi Iwai2006-01-031-8/+39
| | | | | | | | Modules: ES968 driver Add PM support to es968 driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] sb8 - Use platform_device and add PnP supportTakashi Iwai2006-01-031-47/+107
| | | | | | | | | Modules: SB8 driver Rewrite the probe/remove with platform_device. Add PM support, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] sb16 - Use platform_device and add PnP supportTakashi Iwai2006-01-031-123/+204
| | | | | | | | | Modules: SB16/AWE driver Rewrite the probe/remove with platform_device. Add PM support using PnP suspend/resume callbacks. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Add PM support to SB-support codeTakashi Iwai2006-01-033-0/+145
| | | | | | | | Modules: SB drivers,SB16/AWE driver Add PM support to SB-support code. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove xxx_t typedefs: ISA SB8/SB16/SBAWETakashi Iwai2006-01-0315-463/+473
| | | | | | Remove xxx_t typedefs from the ISA SB8/SB16/SBAWE drivers. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] ALS4000 updateAndreas Mohr2006-01-031-23/+34
| | | | | | | | | | | | | | | | | | Modules: SB drivers,ALS4000 driver some update for the ALS4000 driver (tested with hardware in my PC): - use common control names according to ControlNames.txt - add some controls (Master Mono, 3D control) - optimize struct snd_card_als4000_t layout (performance/size) - save some bytes via unified error path - constify some read-only data - add ToDo list - move GPL license text to top - add comments Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove superfluous pcm_free callbacksTakashi Iwai2006-01-032-12/+0
| | | | | | Remove superflous pcm_free callbacks. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Fix schedule_timeout usageNishanth Aravamudan2005-11-043-10/+5
| | | | | | | | | | | Use schedule_timeout_{,un}interruptible() instead of set_current_state()/schedule_timeout() to reduce kernel size. Also use human-time conversion functions instead of hard-coded division to avoid rounding issues. Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Add missing KERN_* suffix to printkTakashi Iwai2005-11-045-13/+10
| | | | | | Add missing KERN_* suffix to printk. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove vmalloc wrapper, kfree_nocheck()Takashi Iwai2005-11-044-24/+7
| | | | | | | | - Remove vmalloc wrapper - Add release_and_free_resource() to remove kfree_nocheck() from each driver and simplify the code Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Replace with kzalloc() - isa stuffTakashi Iwai2005-09-124-4/+4
| | | | | | | | | ES18xx driver,OPL3SA2 driver,AD1816A driver,AD1848 driver,CS4231 driver ES1688 driver,GUS Library,Opti9xx drivers,EMU8000 driver SB16/AWE driver,SB drivers Replace kcalloc(1,..) with kzalloc(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Add snd_card_set_generic_dev() call to ISA driversTakashi Iwai2005-09-122-109/+97
| | | | | | | | | | | | | ISA,CMI8330 driver,ES18xx driver,OPL3SA2 driver,Sound Galaxy driver Sound Scape driver,AD1848 driver,CS4231 driver,CS4236+ driver ES1688 driver,GUS Classic driver,GUS Extreme driver,GUS MAX driver AMD InterWave driver,Opti9xx drivers,SB16/AWE driver,SB8 driver Wavefront drivers - Added snd_card_set_generic_dev() call. - Added SND_GENERIC_DRIVER to Kconfig. - Clean up the error path in probe if necessary. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [PATCH] sb16_csp: untypedefAlexey Dobriyan2005-09-101-7/+7
| | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sb16_csp: remove home-grown le??_to_cpu macrosAlexey Dobriyan2005-09-101-16/+14
| | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ALSA] sound - fix .iface field of mixer control elementsClemens Ladisch2005-08-301-1/+1
| | | | | | | | | | | | | | | Documentation,CS46xx driver,EMU10K1/EMU10K2 driver,AD1848 driver SB16/AWE driver,CMIPCI driver,ENS1370/1+ driver,RME32 driver RME96 driver,ICE1712 driver,ICE1724 driver,KORG1212 driver RME HDSP driver,RME9652 driver This patch changes .iface to SNDRV_CTL_ELEM_IFACE_MIXER whre _PCM or _HWDEP was used in controls that are not associated with a specific PCM (sub)stream or hwdep device, and changes some controls that got inconsitent .iface values due to copy+paste errors. Furthermore, it makes sure that all control that do use _PCM or _HWDEP use the correct number in the .device field. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [PATCH] clean up inline static vs static inlineJesper Juhl2005-07-271-1/+1
| | | | | | | | | | | | | | | `gcc -W' likes to complain if the static keyword is not at the beginning of the declaration. This patch fixes all remaining occurrences of "inline static" up with "static inline" in the entire kernel tree (140 occurrences in 47 files). While making this change I came across a few lines with trailing whitespace that I also fixed up, I have also added or removed a blank line or two here and there, but there are no functional changes in the patch. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] turn many #if $undefined_string into #ifdef $undefined_stringOlaf Hering2005-07-271-2/+2
| | | | | | | | | turn many #if $undefined_string into #ifdef $undefined_string to fix some warnings after -Wno-def was added to global CFLAGS Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-1618-0/+9129
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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