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[v2,0/6] ALSA: Prep work for PCI rescan support

Message ID 20210523090920.15345-1-tiwai@suse.de
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Series ALSA: Prep work for PCI rescan support | expand

Message

Takashi Iwai May 23, 2021, 9:09 a.m. UTC 
Hi,

this is a revised patch set as a prep work for the future-planned PCI
rescan support(*).  The essential part is the patch to track in-flight
tasks, and the rest are cleanups and fixes in the core code.  With
those changes, the driver can perform a sort of software suspend on
the device without the hardware intervention, which is required during
the PCI BAR movement, for example.

v1->v2:
* Move / drop unnecessary snd_power_wait() calls
* Rephrase changelogs and comments, reorder patches


Takashi

(*) https://lore.kernel.org/alsa-devel/e25017c6-e5e4-7a24-e793-14a2e70a434e@amd.com/

===

Takashi Iwai (6):
  ALSA: core: Use READ_ONCE() / WRITE_ONCE() for power state change
  ALSA: control: Track in-flight control read/write/tlv accesses
  ALSA: control: Drop superfluous snd_power_wait() calls
  ALSA: control: Minor optimization for SNDRV_CTL_IOCTL_POWER_STATE
  ALSA: Drop superfluous argument from snd_power_wait()
  ALSA: pcm: Block the release until the system resume finishes

 include/sound/core.h        | 50 ++++++++++++++++++++++++++++++++++---
 sound/core/control.c        | 38 +++++++++++++---------------
 sound/core/control_compat.c | 14 +++--------
 sound/core/init.c           | 46 ++++++++++++++++++++++++++++------
 sound/core/pcm_native.c     |  6 ++++-
 sound/soc/soc-core.c        |  2 +-
 sound/usb/usx2y/us122l.c    |  2 +-
 7 files changed, 113 insertions(+), 45 deletions(-)

Comments

Jaroslav Kysela May 24, 2021, 9:32 a.m. UTC | #1 
Dne 23. 05. 21 v 11:09 Takashi Iwai napsal(a):
> Hi,
> 
> this is a revised patch set as a prep work for the future-planned PCI
> rescan support(*).  The essential part is the patch to track in-flight
> tasks, and the rest are cleanups and fixes in the core code.  With
> those changes, the driver can perform a sort of software suspend on
> the device without the hardware intervention, which is required during
> the PCI BAR movement, for example.
> 
> v1->v2:
> * Move / drop unnecessary snd_power_wait() calls
> * Rephrase changelogs and comments, reorder patches

Reviewed-by: Jaroslav Kysela <perex@perex.cz>

> 
> 
> Takashi
> 
> (*) https://lore.kernel.org/alsa-devel/e25017c6-e5e4-7a24-e793-14a2e70a434e@amd.com/
> 
> ===
> 
> Takashi Iwai (6):
>   ALSA: core: Use READ_ONCE() / WRITE_ONCE() for power state change
>   ALSA: control: Track in-flight control read/write/tlv accesses
>   ALSA: control: Drop superfluous snd_power_wait() calls
>   ALSA: control: Minor optimization for SNDRV_CTL_IOCTL_POWER_STATE
>   ALSA: Drop superfluous argument from snd_power_wait()
>   ALSA: pcm: Block the release until the system resume finishes
> 
>  include/sound/core.h        | 50 ++++++++++++++++++++++++++++++++++---
>  sound/core/control.c        | 38 +++++++++++++---------------
>  sound/core/control_compat.c | 14 +++--------
>  sound/core/init.c           | 46 ++++++++++++++++++++++++++++------
>  sound/core/pcm_native.c     |  6 ++++-
>  sound/soc/soc-core.c        |  2 +-
>  sound/usb/usx2y/us122l.c    |  2 +-
>  7 files changed, 113 insertions(+), 45 deletions(-)
>
Takashi Iwai May 25, 2021, 6:56 a.m. UTC | #2 
On Sun, 23 May 2021 11:09:14 +0200,
Takashi Iwai wrote:
> 
> Hi,
> 
> this is a revised patch set as a prep work for the future-planned PCI
> rescan support(*).  The essential part is the patch to track in-flight
> tasks, and the rest are cleanups and fixes in the core code.  With
> those changes, the driver can perform a sort of software suspend on
> the device without the hardware intervention, which is required during
> the PCI BAR movement, for example.
> 
> v1->v2:
> * Move / drop unnecessary snd_power_wait() calls
> * Rephrase changelogs and comments, reorder patches
> 
> 
> Takashi
> 
> (*) https://lore.kernel.org/alsa-devel/e25017c6-e5e4-7a24-e793-14a2e70a434e@amd.com/
> 
> ===
> 
> Takashi Iwai (6):
>   ALSA: core: Use READ_ONCE() / WRITE_ONCE() for power state change
>   ALSA: control: Track in-flight control read/write/tlv accesses
>   ALSA: control: Drop superfluous snd_power_wait() calls
>   ALSA: control: Minor optimization for SNDRV_CTL_IOCTL_POWER_STATE
>   ALSA: Drop superfluous argument from snd_power_wait()
>   ALSA: pcm: Block the release until the system resume finishes

Now all patches merged to topic/pci-rescan-v2 branch, and into
for-next branch.  The former is a branch freshly based on 5.13-rc1, so
that other trees may pull cleanly.


Takashi