| Commit message (Collapse) | Author | Age | Files | Lines |
|\
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Overwrite pin config on intel DG45ID board.
intelhdmi - dont power off HDA link
ALSA: hrtimer - Fix lock-up
ALSA: intelhdmi - add channel mapping for typical configurations
ALSA: intelhdmi - channel mapping applies to Pin
ALSA: intelhdmi - accept DisplayPort pin
ALSA: hda - show HBR(High Bit Rate) pin cap in procfs
ALSA: hda - Fix LED GPIO setup for HP laptops with IDT codecs
ASoC: Fix build of OMAP sound drivers
ALSA: opti93x: fix irq releasing if the irq cannot be allocated
|
| |
| |
| |
| |
| |
| |
| |
| | |
Use the chip->irq to check if the irq should be released so the irq is not released
if it has not been allocated.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
|\|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: ice1724 - aureon - modify WM8770 Master & DAC volume
ALSA: hda/realtek: quirk for D945GCLF2 mainboard
ALSA: hda - Terradici HDA controllers does not support 64-bit mode
ALSA: document: Add direct git link to grub hda-analyzer
ALSA: radio/sound/miro: fix build, cleanup depends/selects
ALSA: hda - Generalize EAPD inversion check in patch_analog.c
ASoC: Wrong variable returned on error
ALSA: snd-usb-us122l: add product IDs of US-122MKII and US-144MKII
ALSA: hda - Exclude unusable ADCs for ALC88x
ALSA: hda - Add missing Line-Out and PCM switches as slave
ALSA: hda - iMac 9,1 sound patch.
ALSA: opti93x: set MC indirect registers base from PnP data
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
The PnP data on the OPTI931 and OPTI933 contains io port
range for the MC indirect registers. Use the PnP range
instead of hardwired value 0xE0E.
Also, request region of MC indirect registers so it is
marked as used to other drivers (this was missing previously).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
|\ \
| |/
|/|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits)
tree-wide: fix misspelling of "definition" in comments
reiserfs: fix misspelling of "journaled"
doc: Fix a typo in slub.txt.
inotify: remove superfluous return code check
hdlc: spelling fix in find_pvc() comment
doc: fix regulator docs cut-and-pasteism
mtd: Fix comment in Kconfig
doc: Fix IRQ chip docs
tree-wide: fix assorted typos all over the place
drivers/ata/libata-sff.c: comment spelling fixes
fix typos/grammos in Documentation/edac.txt
sysctl: add missing comments
fs/debugfs/inode.c: fix comment typos
sgivwfb: Make use of ARRAY_SIZE.
sky2: fix sky2_link_down copy/paste comment error
tree-wide: fix typos "couter" -> "counter"
tree-wide: fix typos "offest" -> "offset"
fix kerneldoc for set_irq_msi()
spidev: fix double "of of" in comment
comment typo fix: sybsystem -> subsystem
...
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
That is "success", "unknown", "through", "performance", "[re|un]mapping"
, "access", "default", "reasonable", "[con]currently", "temperature"
, "channel", "[un]used", "application", "example","hierarchy", "therefore"
, "[over|under]flow", "contiguous", "threshold", "enough" and others.
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
| |
| |
| |
| |
| |
| |
| |
| |
| | |
Remove snd_opti9xx fields which are indirect arguments to
the snd_opti9xx_configure(). Pass these values as function
arguments.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
The PCM12 and PCM20 can be set into the ISA PnP mode. The PCM12 PnP
was sold as the PnP device.
Add code to handle detection of these cards using ISA PnP framework.
Tested on the PCM20 in PnP mode. The PCM12 PnP has the same MS Windows
INF file except for a card name displayed for user.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| |
| |
| |
| |
| |
| |
| |
| | |
Separate common probing code in order to use it
for PnP probing.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
If a hardware is not detected there is a kernel crash
due to not initialized snd_miro->aci pointer. This pointer
is initialized after detection of the opti (miro) chip.
This bug was introduced by patches to expose
ACI mikser outside the snd-miro driver.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| |
| |
| |
| |
| |
| |
| |
| |
| | |
The ACI mixer is used to control the radio FM module
installed on the Miro PCM20 sound card. Expose ACI mixer
outside the sound card driver.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| |
| |
| |
| |
| |
| |
| |
| | |
Move the miro.h header to the include/sound directory. It can
be used in the Miro PCM20 radio driver (v4l).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
Remove the snd_card pointer from the snd_miro structure and
do some small code improvements.
Also, move Opti chipset detection before detection of the
ACI mixer, so the mci_base value is set in one place only.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| |
| |
| |
| |
| |
| |
| | |
To fix a build error
sound/isa/opti9xx/miro.c:1281: error: expected ';' before '}' token
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
|/
|
|
|
|
|
|
|
| |
Use the fm_port and mpu_port variables directly in a probe function.
This completely eliminates a need to copy the fm_port value to
the snd_miro structure.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
|\ |
|
| |
| |
| |
| |
| |
| | |
Add a missing variable declaration.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| |
| |
| |
| |
| |
| |
| | |
Some drivers in sound/isa/* don't handle the error code properly
from snd_card_create(). This patch fixes these places.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| |
| |
| |
| |
| |
| | |
Convert from snd_card_new() to the new snd_card_create() function.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
| |
| |
| |
| | |
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
|/
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Most cards have OPL3 FM synthetiser but
they do not have OPL3 interrupt wired to
a sound chip or CPU.
Do not create OPL3 timers for such cards
as the timers are useless witthout interrupt.
This patch removes OPL3 timers for following
alsa drivers: snd-ad1816a, snd-opti93x,
snd-opti92x, snd-sc6000, snd-cmi8330.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
|
|
|
|
|
|
|
| |
Kill snd_assert() in sound/isa/*, either removed or replaced with
if () with snd_BUG_ON().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
| |
snd-opti92x-ad1848 mistakingly passes WSS_HW_OPTI93X currently. This
fixes it as tested with a OPTi 82C929A/AD1848 card.
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Use the wss detection code and kill the ad1848 library.
The library is fully assimilated into the new wss library.
This required reworking of the AD1848 family code
so the code is changed to correctly detect chips from
the AD1848 and CS4231 families.
I have tested it on following cards:
Gallant SC-6600 (codec: AD1848, driver: snd-sc6600)
SoundScape VIVO/90 (codec: AD1845, driver: snd-sscape)
SG Waverider (codec: CS4231A, driver: Rene Herman's snd-galaxy)
Opti930 (codec: built-in - CS4231 compatible, driver: snd-opti93x)
Opti931 (codec: built-in - CS4231 compatible, driver: snd-opti93x)
Gallant SC-70P (chip/codec: CS4237B, driver: snd-cs4236)
Audio Plus 3D (chip/codec: CMI8330A, driver: snd-cmi8330)
Dell Latitude CP (chip/codec: cs4236, driver snd-cs4232)
Sound playback and recording works on all these cards.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Reviewed-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Use the wss pcm code and kill the ad1848 pcm code.
The AD1848 chip is much slower than CS4231 chips
so the waiting loop was increased 100x (10x is not
enough).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Reviewed-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
| |
Use the wss mixer code and kill the ad1848 mixer code.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Reviewed-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Use wss constants for mode.
Move ad1848 hardware constants to the wss.h.
Move mixer tlv macros into the ad1848_lib.c from the ad1848.h.
Drop the MODE_RUNNING spurious IRQ guard on AD1848 as it doesn not seem
to be needed.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Reviewed-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
| |
The snd_wss is superset of the snd_ad1848 so kill
the latter and replace it with the snd_wss.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Reviewed-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
|
| |
Rename functions and structures from the former
cs4321_lib to names more corresponding with the
new name: wss_lib.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Reviewed-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
| |
Rename file include/sound/cs4231.h
into include/sound/wss.h
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Reviewed-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
| |
"isapnp" needs CONFIG_PNP to be useful.
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
|
|
|
|
|
|
|
|
|
|
| |
Probing non-existing device causes Oops with snd-opti93x driver
due to NULL access in the destructor of the error path.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Rene Herman <rene.herman@gmail.com>
Acked-by: Rene Herman <rene.herman@gmail.com>
Tested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Ingo Molnar <mingo@elte.hu>
|
|
|
|
|
|
|
|
|
|
| |
This patch converts the Opti93x driver to use
the cs4231 library instead of duplicating the code.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Tested-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
| |
This patch fixes silenced output from the Opti930.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
snd_opti93x_mixer() is only called by __devinit snd_opti93x_probe(),
so the former can also be __devinit.
snd_miro_mixer() is only called by __devinit snd_miro_probe(),
so the former can also be __devinit.
sound/isa/opti9xx/opti92x-ad1848.c:
WARNING: vmlinux.o(.text+0xf91cd7): Section mismatch: reference to .init.data:snd_opti93x_controls (between 'snd_opti93x_mixer' and 'snd_card_opti9xx_free')
WARNING: vmlinux.o(.text+0xf91d66): Section mismatch: reference to .init.data:snd_miro_controls (between 'snd_opti93x_mixer' and 'snd_card_opti9xx_free')
opti9xx/miro.c:
WARNING: vmlinux.o(.text+0xf926c2): Section mismatch: reference to .init.data:snd_miro_controls (between 'snd_miro_mixer' and 'snd_legacy_find_free_ioport')
WARNING: vmlinux.o(.text+0xf926e5): Section mismatch: reference to .init.data:snd_miro_eq_controls (between 'snd_miro_mixer' and 'snd_legacy_find_free_ioport')
WARNING: vmlinux.o(.text+0xf926f9): Section mismatch: reference to .init.data:snd_miro_line_control (between 'snd_miro_mixer' and 'snd_legacy_find_free_ioport')
WARNING: vmlinux.o(.text+0xf92716): Section mismatch: reference to .init.data:snd_miro_amp_control (between 'snd_miro_mixer' and 'snd_legacy_find_free_ioport')
WARNING: vmlinux.o(.text+0xf9273e): Section mismatch: reference to .init.data:snd_miro_preamp_control (between 'snd_miro_mixer' and 'snd_legacy_find_free_ioport')
WARNING: vmlinux.o(.text+0xf92764): Section mismatch: reference to .init.data:snd_miro_capture_control (between 'snd_miro_mixer' and 'snd_legacy_find_free_ioport')
WARNING: vmlinux.o(.text+0xf92783): Section mismatch: reference to .init.data:snd_miro_radio_control (between 'snd_miro_mixer' and 'snd_legacy_find_free_ioport')
WARNING: vmlinux.o(.text+0xf9279a): Section mismatch: reference to .init.data:snd_miro_eq_controls (between 'snd_miro_mixer' and 'snd_legacy_find_free_ioport')
WARNING: vmlinux.o(.text+0xf927b9): Section mismatch: reference to .init.data:snd_miro_radio_control (between 'snd_miro_mixer' and 'snd_legacy_find_free_ioport')
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
|
|
| |
This header file exists only for some hacks to adapt alsa-driver
tree. It's useless for building in the kernel. Let's move a few
lines in it to sound/core.h and remove it.
With this patch, sound/driver.h isn't removed but has just a single
compile warning to include it. This should be really killed in
future.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
This removes the pnp_resource_change use from the ALSA ISAPnP drivers. In
2.4 these were useful in providing an easy path to setting the resources,
but in 2.6 they retain function as a layering violation only.
This makes for a nice cleanup (-550 lines) of ALSA but moreover, ALSA is the
only remaining user of pnp_init_resource_table(), pnp_resource_change() and
pnp_manual_config_dev() (and, in fact, of 'struct pnp_resource_table') in
the tree outide of drivers/pnp itself meaning it makes for more cleanup
potential inside the PnP layer.
Thomas Renninger acked their removal from that side, you did from the ALSA
side (CC list just copied from that thread).
Against current alsa-kernel HG. Many more potential cleanups in there, but
this _only_ removes the pnp_resource_change code. Compile tested against
current alsa-kernel HG and compile- and use-tested against 2.6.23.x (few
offsets).
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
| |
Check the value ranges in ctl put callbacks properly (in the rest drivers).
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
| |
the BTC 1817DW board.
The QS1000 is connected through the digital input
to the Opti931 chip.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
| |
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
The OPTi ISA-PnP chips advertise their OPL4 base at 0x380 (to 0x3f0) through
pnp and put their on-chip OPL3 at +8. The driver assumes the provided
value is the ALBase (OPL3 address) though and checks for an OPL4 at -8,
which means that simply adding 8 to the pnp provides value works to fix
detection of both OPL3 and OPL4.
Problem spotted on 931 and 933 by Krzysztof Helt and confirmed on 924 and
925 (together all OPTi ISA-PnP chips) by me.
Signed-off-by; Rene Herman <rene.herman@gmail.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
|
|
|
|
|
|
|
| |
Clean up codes using the new common snd_ctl_boolean_*_info() callbacks.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
- Added the missing pnp_unregister_card_driver() in the case ISA PnP
isn't found, which caused an error at kobject_add with -EEXIST
Jun 11 09:07:31 rain kernel: kobject_add failed for opti9xx with -EEXIST, don't try to register things with the same name in the same directory.
Jun 11 09:07:31 rain kernel: [<c01c18fa>] kobject_shadow_add+0x12a/0x1c0
Jun 11 09:07:31 rain kernel: [<c01c1a81>] kobject_register+0x21/0x50
Jun 11 09:07:31 rain kernel: [<c01f09a2>] bus_add_driver+0x72/0x1b0
Jun 11 09:07:31 rain kernel: [<c01d3dff>] pnp_register_card_driver+0x4f/0xc0
Jun 11 09:07:31 rain kernel: [<c89bc00a>] alsa_card_opti9xx_init+0xa/0x25 [snd_opti92x_ad1848]
Jun 11 09:07:31 rain kernel: [<c0136947>] sys_init_module+0x157/0x1610
Jun 11 09:07:31 rain kernel: [<c01029b4>] syscall_call+0x7/0xb
- Fixed the probe behavior when no PnP is set up. Now it behaves
like the former version.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
|
|
|
|
|
|
|
|
| |
isa_bus: delete snd_ prefix from the (sysfs visible) device/driver names.
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
|
|
|
|
|
|
|
|
|
| |
Added a new macro snd_pcm_group_for_each_entry() just for code cleanup.
Old macros, snd_pcm_group_for_each() and snd_pcm_group_substream_entry(),
are removed.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
|
|
|
|
|
|
|
|
| |
Port the rest of ALSA ISA drivers to use isa_driver framework
instead of platform_driver.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
|
|
|
|
|
|
|
|
|
| |
Check the return value of kmalloc() in function snd_card_opti9xx_pnp(),
in file sound/isa/opti9xx/opti92x-ad1848.c.
Signed-off-by: Amit Choudhary <amit2030@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
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)
|
|
|
|
|
|
|
|
|
|
|
| |
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 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>
|