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* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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)
* [ALSA] Fix section mismatch errors in ALSA PCI driversTakashi Iwai2006-07-121-1/+1
| | | | | | | | | Fixed 'section mismatch' errors in ALSA PCI drivers: - removed invalid __devinitdata from pci id tables - fix/remove __devinit of functions called in suspend/resume Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* [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>
* [ALSA] Change an arugment of snd_mpu401_uart_new() to bit flagsTakashi Iwai2006-06-221-2/+2
| | | | | | | | | | Change the 5th argument of snd_mpu401_uart_new() to bit flags instead of a boolean. The argument takes bits that consist of MPU401_INFO_XXX flags. The callers that used the value 1 there are replaced with MPU401_INFO_INTEGRATED. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] azt3328.c: use kernel coding styleAndreas Mohr2006-06-221-47/+23
| | | | | | | Scope braces were not done the One True Kernel Way. Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] azt3328.c: add 3D sound mixer switch/rename controlsAndreas Mohr2006-06-221-10/+31
| | | | | | | | - add 3D sound pre-3D/post-3D switch, as seen in standard AC-97 - rename controls to shorter and more accurate strings Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] azt3328.c: add suspend/resume supportAndreas Mohr2006-06-221-3/+116
| | | | | | | | | | | - add suspend/resume handlers - fix problem (private_data members not set) Playing a file while suspending will resume correctly with this patch, so I assume the hardware to get fully correctly reinitialized with this patch. Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] add __devinitdata to all pci_device_idHenrik Kretzschmar2006-04-271-1/+1
| | | | | Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [PATCH] Replace 0xff.. with correct DMA_xBIT_MASKMatthias Gehre2006-03-281-2/+3
| | | | | | | | | | Replace all occurences of 0xff.. in calls to function pci_set_dma_mask() and pci_set_consistant_dma_mask() with the corresponding DMA_xBIT_MASK from linux/dma-mapping.h. Signed-off-by: Matthias Gehre <M.Gehre@gmx.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ALSA] Remove xxx_t typedefs: PCI AZT3328Takashi Iwai2006-01-031-105/+111
| | | | | | | | Modules: AZT3328 driver Remove xxx_t typedefs from the PCI AZT3328 driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove superfluous pcm_free callbacksTakashi Iwai2006-01-031-9/+0
| | | | | | Remove superflous pcm_free callbacks. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [PATCH] PCI: removed unneeded .owner field from struct pci_driverGreg Kroah-Hartman2005-11-111-1/+0
| | | | Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [ALSA] AZT3328 driver updateAndreas Mohr2005-11-041-325/+656
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Modules: AZT3328 driver this is now an even much more reworked patch (#3) for my azt3328.c ALSA driver. IOW I spent another 4 evenings to get the sequencer timer to work properly (my head is still hurting) and do lots of other cleanups. Note that despite the extensive sequencer timer additions, the driver object is still only 2kB bigger than the previous version, due to those many optimizations... Changes in version #3: - fully working ALSA sequencer timer support for the card's 1024000Hz DirectX timer (downscaling adjustable via seqtimer_scaling module param) - an insane amount of code optimizations - many, many cleanups Changes in version #2: - FOUND the 1us DirectX timer area (yay!), made the code respect it properly - renamed some 'weird' mixer control names according to ControlNames.txt - cleanup unneeded debug messages, reformatting - improved I/O register documentation - constified many more structs Changes in version #1: - improves/fixes some fatal playback/recording interaction - improves IRQ handler performance (and actually fixes some weird code) - coalesces some I/O accesses - slightly improves I/O interface documentation - improves/fixes logging - defines out some less important debug code - constifies some data Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Add missing KERN_* suffix to printkTakashi Iwai2005-11-041-9/+9
| | | | | | Add missing KERN_* suffix to printk. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Remove vmalloc wrapper, kfree_nocheck()Takashi Iwai2005-11-041-4/+2
| | | | | | | | - 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] set owner field in struct pci_driverClemens Ladisch2005-09-121-0/+1
| | | | | | | | | | | | | | | | AD1889 driver,ALS4000 driver,ATIIXP driver,ATIIXP-modem driver AZT3328 driver,BT87x driver,CMIPCI driver,CS4281 driver ENS1370/1+ driver,ES1938 driver,ES1968 driver,FM801 driver Intel8x0 driver,Intel8x0-modem driver,Maestro3 driver,RME32 driver RME96 driver,SonicVibes driver,VIA82xx driver,VIA82xx-modem driver ALI5451 driver,au88x0 driver,CS46xx driver,EMU10K1/EMU10K2 driver HDA Intel driver,ICE1712 driver,ICE1724 driver,KORG1212 driver MIXART driver,NM256 driver,RME HDSP driver,RME9652 driver Trident driver,Digigram VX222 driver,YMFPCI driver Set the module owner field in each driver's struct pci_driver to get the driver symlink in the sysfs device directory. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
* [ALSA] Replace with kzalloc() - pci stuffTakashi Iwai2005-09-121-1/+1
| | | | | | | | | | | | | | AD1889 driver,ATIIXP driver,ATIIXP-modem driver,AZT3328 driver BT87x driver,CMIPCI driver,CS4281 driver,ENS1370/1+ driver ES1938 driver,ES1968 driver,FM801 driver,Intel8x0 driver Intel8x0-modem driver,Maestro3 driver,SonicVibes driver,VIA82xx driver VIA82xx-modem driver,AC97 Codec,AK4531 codec,au88x0 driver CA0106 driver,CS46xx driver,EMU10K1/EMU10K2 driver,HDA Codec driver HDA generic driver,HDA Intel driver,ICE1712 driver,ICE1724 driver KORG1212 driver,MIXART driver,NM256 driver,Trident driver,YMFPCI driver Replace kcalloc(1,..) with kzalloc(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ALSA] Replace pci_module_init() with pci_register_driver()Takashi Iwai2005-05-291-1/+1
| | | | | | | | | | | | | | | Documentation,ALS4000 driver,ATIIXP driver,ATIIXP-modem driver AZT3328 driver,BT87x driver,CMIPCI driver,CS4281 driver ENS1370/1+ driver,ES1938 driver,ES1968 driver,FM801 driver Intel8x0 driver,Intel8x0-modem driver,Maestro3 driver,RME32 driver RME96 driver,SonicVibes driver,VIA82xx driver,VIA82xx-modem driver ALI5451 driver,au88x0 driver,CA0106 driver,CS46xx driver EMU10K1/EMU10K2 driver,HDA Intel driver,ICE1712 driver,ICE1724 driver KORG1212 driver,MIXART driver,NM256 driver,RME HDSP driver RME9652 driver,Trident driver,Digigram VX222 driver,YMFPCI driver Replace the obsolete pci_module_init() with pci_register_driver(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-171-0/+1536
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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