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linux/sound/core
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Takashi Iwai 0b9f2bd00f ALSA: memalloc: Use proper DMA mapping API for x86 S/G buffer allocations 
The fallback S/G buffer allocation for x86 used the addresses deduced
from the page allocations blindly.  It broke the allocations on IOMMU
and made us to work around with a hackish DMA ops check.

For cleaning up those messes, this patch switches to the proper DMA
mapping API usages with the standard sg-table instead.

By introducing the sg-table, the address table isn't needed, but for
keeping the original allocation sizes for freeing, replace it with the
array keeping the number of pages.

The get_addr callback is changed to use the existing one for
non-contiguous buffers.  (Also it's the reason sg_table is put at the
beginning of struct snd_dma_sg_fallback.)

And finally, the hackish workaround that checks the DMA ops is
dropped now.

Link: https://patch.msgid.link/20240912155227.4078-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-09-12 18:02:18 +02:00
..
oss ALSA: oss: Remove unused declarations 2024-08-16 12:28:12 +02:00
seq Merge branch 'topic/seq-filter-cleanup' into for-next 2024-08-19 10:48:46 +02:00
.kunitconfig ALSA: core: add kunitconfig 2024-03-17 09:36:45 +01:00
compress_offload.c ALSA: core: Drop superfluous no_free_ptr() for memdup_user() errors 2024-09-02 10:21:41 +02:00
control_compat.c Merge branch 'topic/control-lookup-rwlock' into for-next 2024-08-09 14:25:24 +02:00
control_led.c Merge branch 'topic/control-lookup-rwlock' into for-next 2024-08-09 14:25:24 +02:00
control.c ALSA: core: Drop superfluous no_free_ptr() for memdup_user() errors 2024-09-02 10:21:41 +02:00
ctljack.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
device.c ALSA: core: Fix missing return value comments for kernel docs 2022-07-13 13:42:38 +02:00
hrtimer.c ALSA: hrtimer: Use guard() for locking 2024-02-28 15:01:20 +01:00
hwdep_compat.c ALSA: compat_ioctl: avoid compat_alloc_user_space 2020-09-21 10:37:07 +02:00
hwdep.c ALSA: hwdep: Move put_user() call out of scoped_guard() in snd_hwdep_control_ioctl() 2024-03-01 18:10:57 +01:00
info_oss.c ALSA: info: Use guard() for locking 2024-02-28 15:01:21 +01:00
info.c ALSA: info: Use guard() for locking 2024-02-28 15:01:21 +01:00
init.c ALSA: control: Rename ctl_files_rwlock to controls_rwlock 2024-08-09 14:24:55 +02:00
isadma.c sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
jack.c ALSA: core: Remove debugfs at disconnection 2024-05-27 09:28:21 +02:00
Kconfig ALSA: timer: Introduce virtual userspace-driven timers 2024-08-18 09:55:54 +02:00
Makefile ALSA: core: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:32 +02:00
memalloc.c ALSA: memalloc: Use proper DMA mapping API for x86 S/G buffer allocations 2024-09-12 18:02:18 +02:00
memory.c ALSA: core: Add memory copy helpers between iov_iter and iomem 2023-08-18 12:18:16 +02:00
misc.c ALSA: core: Drop snd_print stuff and co 2024-08-08 07:49:47 +02:00
pcm_compat.c ALSA: pcm: Use guard() for PCM stream locks 2024-02-28 15:01:22 +01:00
pcm_dmaengine.c ALSA: pcm_dmaengine: Don't synchronize DMA channel when DMA is paused 2024-07-17 10:39:47 +02:00
pcm_drm_eld.c drm/edid: include drm_eld.h only where required 2023-11-09 16:47:31 +02:00
pcm_iec958.c ALSA: iec958: Split status creation and fill 2021-06-08 17:05:41 +02:00
pcm_lib.c ALSA: pcm: Add xrun counter for snd_pcm_substream 2024-08-10 10:40:58 +02:00
pcm_local.h ALSA: pcm: Revert "ALSA: pcm: rewrite snd_pcm_playback_silence()" 2023-05-05 18:23:48 +02:00
pcm_memory.c ALSA: pcm: Fix yet more compile warning at replacement with kstrtoul() 2024-09-02 10:17:42 +02:00
pcm_misc.c ALSA: pcm: Fix breakage of PCM rates used for topology 2024-09-11 16:17:44 +02:00
pcm_native.c ALSA: pcm: Fix breakage of PCM rates used for topology 2024-09-11 16:17:44 +02:00
pcm_param_trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pcm_timer.c ALSA: pcm_timer: use snd_pcm_direction_name() 2024-08-01 12:50:13 +02:00
pcm_trace.h tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
pcm.c ALSA: pcm: Add xrun counter for snd_pcm_substream 2024-08-10 10:40:58 +02:00
rawmidi_compat.c ALSA: rawmidi: Replace with __packed attribute 2023-10-26 09:42:55 +02:00
rawmidi.c ALSA: rawmidi: Use guard() for locking 2024-02-28 15:01:21 +01:00
seq_device.c driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
sound_kunit.c ALSA: kunit: Add missing module descriptions 2024-05-09 10:13:07 +02:00
sound_oss.c ALSA: core: Use guard() for locking 2024-02-28 15:01:21 +01:00
sound.c ALSA: core: Use guard() for locking 2024-02-28 15:01:21 +01:00
timer_compat.c ALSA: timer: Use guard() for locking 2024-02-28 15:01:20 +01:00
timer.c ALSA: core: Drop superfluous no_free_ptr() for memdup_user() errors 2024-09-02 10:21:41 +02:00
ump_convert.c ALSA: ump: Explicitly reset RPN with Null RPN 2024-07-31 15:08:39 +02:00
ump.c ALSA: ump: Use %*ph to print small buffer 2024-09-12 08:40:51 +02:00
vmaster.c ALSA: vmaster: Return error for invalid input values 2024-06-18 12:00:18 +02:00