Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1322115

Re: [PATCH v2] ata: add AMD Seattle platform driver

From One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk>
Newsgroups linux.kernel
Subject Re: [PATCH v2] ata: add AMD Seattle platform driver
Date 2016-01-29 22:40 +0100
Message-ID <qWoVR-MS-21@gated-at.bofh.it> (permalink)
References <qUWfg-12K-7@gated-at.bofh.it> <qVaLg-3XS-11@gated-at.bofh.it> <qWoMc-IK-57@gated-at.bofh.it> <qWoMc-IK-55@gated-at.bofh.it>
Organization Intel Corporation

Show all headers | View raw


> For the ACPI case, I still think that an AML call from the AHCI driver
> is the most logical solution. You mentioned that you believe that calling
> into the AML interpreter up to 100 times per second is a noticeable
> overhead, but I doubt that and would like to see actual number backing
> that up. Note that most of the time, the status of the LEDs won't even
> change, so the driver does not have to call into the AML while I/O
> is in progress, or while it is stopped, only for the transition or in
> case of locate and fault events that should be extremely rare.

It can also be delayed - you don't need to adjust the LED at any great
rate - it's for a human not a machine to read.

Alan

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Re: [PATCH v2] ata: add AMD Seattle platform driver Arnd Bergmann <arnd@arndb.de> - 2016-01-29 22:30 +0100
  Re: [PATCH v2] ata: add AMD Seattle platform driver One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-01-29 22:40 +0100
  Re: [PATCH v2] ata: add AMD Seattle platform driver Arnd Bergmann <arnd@arndb.de> - 2016-02-01 21:20 +0100
    Re: [PATCH v2] ata: add AMD Seattle platform driver Arnd Bergmann <arnd@arndb.de> - 2016-02-02 15:10 +0100
      Re: [PATCH v2] ata: add AMD Seattle platform driver Arnd Bergmann <arnd@arndb.de> - 2016-02-05 16:00 +0100

csiph-web