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* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-053-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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] sound/sparc/dbri: Use ARRAY_SIZE macroTobias Klauser2006-09-291-3/+1
| | | | | | | | Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SOUND] sparc/amd7930: Use __devinit and __devinitdata as needed.David S. Miller2006-09-251-10/+10
| | | | | | Fixes section-mismatch errors. Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] NULL noise removalAl Viro2006-09-241-3/+3
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ALSA] sparc dbri: SMP fixesKrzysztof Helt2006-09-231-17/+48
| | | | | | | | | The dbri driver hangs when used in kernel compiled with SMP support due to inproper locking. The patch fixes it. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri: OSS layer fixKrzysztof Helt2006-09-231-2/+0
| | | | | | | | | | This patch removes setting of incorrect stop_threshold value inside the driver. After the change, playback through the OSS layer works correctly. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] dbri sparc: fixes TS leakKrzysztof Helt2006-09-231-2/+18
| | | | | | | | This patch fixes time slot leak in the dbri driver. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri: recording is backKrzysztof Helt2006-09-231-45/+20
| | | | | | | | | | This patch fixes sound recording after the driver convertion to ring buffered version. It also contains small clean ups to the driver. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri: hardware constrains addedKrzysztof Helt2006-09-231-19/+62
| | | | | | | | | | This patch adds ALSA hardware constrains so stereo is possible only with 16-bit format. It contains small cleanups to ring buffered code as well. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri: ring buffered versionKrzysztof Helt2006-09-231-193/+192
| | | | | | | | | | It is a complete rework of low level layer to work on ring buffers for comands and data descriptors. This removes annoying noise due to delay in data buffer switching. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri: simplifed linking time slot functionKrzysztof Helt2006-09-231-84/+41
| | | | | | | | A simplified routines to link and unlink time slots. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri: fixed setting of burst size after resetKrzysztof Helt2006-09-231-8/+9
| | | | | | | | | A proper way to set DBRI's burst size. The size must be set after each chip reset. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri: more driver cleanupKrzysztof Helt2006-09-231-29/+16
| | | | | | | | A general clean up and redudant code removal. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri: removal of dri_desc structKrzysztof Helt2006-09-231-23/+17
| | | | | | | | The structure is in big part redudant. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri: removal of redudant volatile keywordsKrzysztof Helt2006-09-231-3/+3
| | | | | | | | It removes redudant volatile keywords. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri: removal of unused struct membersKrzysztof Helt2006-09-231-29/+6
| | | | | | | | It removes unused or rarely used members of defined structures. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] sparc dbri removal of DBRI_NO_INTSKrzysztof Helt2006-09-231-23/+8
| | | | | | | | | This patch removes define DBR_NO_INTS and all code related to handling more than one dbri irq statuses block. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [ALSA] dbri driver cleanupKrzysztof Helt2006-09-231-11/+5
| | | | | | | | | This is a small clean up of the dbri driver for sparc machines. It contains also a fix to DBRI interrupt queue initialization. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [PATCH] sparc: resource warning fixAndrew Morton2006-07-033-4/+4
| | | | | | | | | | | | | sound/sparc/amd7930.c: In function 'amd7930_attach_common': sound/sparc/amd7930.c:1040: warning: format '%08lx' expects type 'long unsigned int', but argument 5 has type 'resource_size_t' sound/sparc/cs4231.c:2043: warning: format '%016lx' expects type 'long unsigned int', but argument 5 has type 'resource_size_t' sound/sparc/dbri.c: In function 'dbri_attach': sound/sparc/dbri.c:2650: warning: format '%016lx' expects type 'long unsigned int', but argument 5 has type 'resource_size_t' Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] irq-flags: sound: Use the new IRQF_ constantsThomas Gleixner2006-07-023-3/+3
| | | | | | | | | | | 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>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* typo fixes: specfic -> specificAdrian Bunk2006-06-301-1/+1
| | | | Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] 64bit resource: fix up printks for resources in sound driversGreg Kroah-Hartman2006-06-272-4/+4
| | | | | | | | | | 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>
* [SOUND] sparc: Port amd7930 to new SBUS device layer.David S. Miller2006-06-231-61/+77
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC64]: Use in-kernel PROM tree for EBUS and ISA.David S. Miller2006-06-231-7/+6
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [ALSA] Remove zero-initialization of static variablesTakashi Iwai2006-06-221-2/+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 Iwai2006-06-221-2/+2
| | | | | | | 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>
* [SPARC]: Kill __irq_itoa().David S. Miller2006-06-203-13/+12
| | | | | | | | | | | | | | | | | | This ugly hack was long overdue to die. It was a way to print out Sparc interrupts in a more freindly format, since IRQ numbers were arbitrary opaque 32-bit integers which vectored into PIL levels. These 32-bit integers were not necessarily in the 0-->NR_IRQS range, but the PILs they vectored to were. The idea now is that we will increase NR_IRQS a little bit and use a virtual<-->real IRQ number mapping scheme similar to PowerPC. That makes this IRQ printing hack irrelevant, and furthermore only a handful of drivers actually used __irq_itoa() making it even less useful. Signed-off-by: David S. Miller <davem@davemloft.net>
* BUG_ON() Conversion in sound/sparc/cs4231.cEric Sesterhenn2006-03-241-4/+2
| | | | | | | | this changes if() BUG(); constructs to BUG_ON() which is cleaner, contains unlikely() and can better optimized away. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [ALSA] semaphore -> mutex (Archs, misc buses)Ingo Molnar2006-03-221-17/+17
| | | | | | | | | | | 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>
* [SOUND]: sparc/cs4231: Fix some typos which wrecked the build.David S. Miller2006-01-171-1/+2
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* [ALSA] Remove xxx_t typedefs: SPARC CS4231Takashi Iwai2006-01-031-174/+168
| | | | | | Remove xxx_t typedefs from the SPARC CS4231 driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] dbri - Don't return errors without CONFIG_PROC_FSTakashi Iwai2006-01-031-6/+6
| | | | | | | | | Modules: SPARC DBRI driver Don't return errors if the proc file can't be created (for the case without CONFIG_PROC_FS). Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove snd_card_generic_dev()Takashi Iwai2006-01-034-12/+0
| | | | | | | Remove the obsolete snd_card_generic_dev(). CONFIG_SND_GENERIC_DRIVER is also removed from Kconfig. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove xxx_t typedefs: SPARC DBRITakashi Iwai2006-01-031-109/+109
| | | | | | | | Modules: SPARC DBRI driver Remove xxx_t typedefs from the SPARC DBRI driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove xxx_t typedefs: SPARC AMD7930Takashi Iwai2006-01-031-65/+65
| | | | | | | | Modules: SPARC AMD7930 driver Remove xxx_t typedefs from the SPARC AMD7930 driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove superfluous pcm_free callbacksTakashi Iwai2006-01-032-17/+0
| | | | | | Remove superflous pcm_free callbacks. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [SPARC]: introduce a SPARC Kconfig symbolAdrian Bunk2005-12-221-1/+1
| | | | | | | | | | Introduce a Kconfig symbol SPARC that is defined on both the sparc and sparc64 architectures. This symbol makes some dependencies more readable. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: More abstractions and cleanups of dma handling in cs4231.Georg Chini2005-11-071-341/+342
| | | | | | From: Georg Chini <georg.chini@triaton-webhosting.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [SPARC]: Make SBUS dma code similar to EBUSGeorg Chini2005-11-071-112/+199
| | | | | | | | | | | | From: Georg Chini <georg.chini@triaton-webhosting.com> Introduce some sbus_dma routines similar to the ebus_dma stuff to make the code look nearly the same for both cases. Thanks to Christopher for testing. Signed-off-by: David S. Miller <davem@davemloft.net>
* [ALSA] Remove obsolete chip_tTakashi Iwai2005-11-041-4/+1
| | | | | | | | Modules: Documentation,MIPS AU1x00 driver,PPC Beep,SPARC DBRI driver Removed the use of chip_t, which was obsoleted. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [SPARC] cs4231: Fix SBUS support in this driver.Christopher Zimmermann2005-09-211-157/+166
| | | | | | | | | | | | | | | | | | | | | From: Christopher Zimmermann <madroach@zakweb.de> This patch enables SBus support for the cs4231 sound driver. It is tested on an Ultra2. Capture and playback both work. I experienced lags and crashes using certain threaded players like ogg123 and mp3blaster, while the former is lagging far more. This behavior may be specific to SMP systems. It is reproducable using the dummy sound card driver. Sox works flawlessly. Setting up the calculation of ptr in snd_cs4231_playback_pointer was a bit strange. I got it to work by not incrementing the [pc]_periods_sent counter when starting DMA the first time in cs4231_dma_trigger. Therefore this dummy thing. [ I did some minor cleanups -DaveM ] Signed-off-by: David S. Miller <davem@davemloft.net>
* [ALSA] Several fixes for the Sun DBRI driverMartin Habets2005-09-121-102/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | SPARC DBRI driver This patch contains the following fixes to the Alsa DBRI driver: - Remove 2.6.13 build warning on the prom_getproperty() call. - Rework command synchronization: send a sequence number with D_WAIT, and check it in the completion interrupt. Move synchronization delays from _cmdsend() to _cmdlock() allowing the CPU to do other usefull things while the DBRI is processing the commands. - Fix first argument of printk() calls. - Enable burst transfers for DBRI. Original 2.4 patch from Krzysztof Helt - Make dbri_debug module parameter writable from sysfs. Remove obsolete write access to the /proc debug file. - Replace udelay() with msleep_interruptible() where possible. - Update documentation comments. Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Replace with kzalloc() - othersTakashi Iwai2005-09-122-3/+3
| | | | | | | | | | | Documentation,SA11xx UDA1341 driver,Generic drivers,MPU401 UART,OPL3 OPL4,Digigram VX core,I2C cs8427,I2C lib core,I2C tea6330t,L3 drivers AK4114 receiver,AK4117 receiver,PDAudioCF driver,PPC PMAC driver SPARC AMD7930 driver,SPARC cs4231 driver,Synth,Common EMU synth USB generic driver,USB USX2Y Replace kcalloc(1,..) with kzalloc(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Add snd_card_set_generic_dev() callTakashi Iwai2005-09-124-15/+23
| | | | | | | | | | | ARM,SA11xx UDA1341 driver,Generic drivers,MPU401 UART,MIPS MIPS AU1x00 driver,PPC,PPC PowerMac driver,SPARC,SPARC AMD7930 driver SPARC cs4231 driver,SPARC DBRI driver - 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>
* [ALSA] Add DBRI driver on SparcsTakashi Iwai2005-07-283-4/+2741
| | | | | | | | Documentation,SPARC,/sparc/Makefile Add the DBRI driver on Sparcs by Martin Habets <mhabets@users.sourceforge.net> (moved from alsa-driver tree). Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Add help texts to KconfigTakashi Iwai2005-07-281-0/+10
| | | | | | | | SPARC Added simple help texts to Kconfig of Sparc sound drivers. (Better texts are appreciated :) Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-164-0/+3421
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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