From: Avri Altman <Avri.Altman@wdc.com> To: Ulf Hansson <firstname.lastname@example.org> Cc: "email@example.com" <firstname.lastname@example.org>, Adrian Hunter <email@example.com>, Linus Walleij <firstname.lastname@example.org>, Wolfram Sang <email@example.com>, Shawn Lin <firstname.lastname@example.org>, Masami Hiramatsu <email@example.com>, "firstname.lastname@example.org" <email@example.com>, "firstname.lastname@example.org" <email@example.com> Subject: RE: [PATCH 0/2] mmc: core: Implement support for cache ctrl for SD cards Date: Mon, 10 May 2021 10:12:14 +0000 [thread overview] Message-ID: <DM6PR04MB6575269203C4A8099C2527D3FC549@DM6PR04MB6575.namprd04.prod.outlook.com> (raw) In-Reply-To: <CAPDyKFqQe5aYqF6iNppY66EfkVNPce_sRF6NJgSn26Rsfirstname.lastname@example.org> > On Mon, 10 May 2021 at 09:40, Avri Altman <Avri.Altman@wdc.com> wrote: > > > > > In the SD spec v6.x the SD function extension registers for performance > > > enhancements were introduced. As a part of this an optional internal > cache > > > on > > > the SD card can be used to improve performance. > > Just to verify that you are aware of that: > > In addition to the extension Registers that were defined in the physical > core spec, > > there was a separate document that was released that suggest a common > OS API's to those registers. > > It is called "SD specification part A5, SD Extensions API specification". > > Thanks for the pointer! > > I did have a very brief look at this. The conclusion I made is that > this is way over designed to enable support for features like cache > and poweroff notification. However, there may be other use cases that > could benefit from a user space library, along the lines of the SD > Extensions API, but I can't really tell. > > Do you have an interest around this that you can share? Not at the moment. Still thinking about this. Thanks, Avri > > Thanks for reviewing! > > Kind regards > Uffe
prev parent reply other threads:[~2021-05-10 10:12 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-05-06 14:58 Ulf Hansson 2021-05-06 14:58 ` [PATCH 1/2] mmc: core: Move eMMC cache flushing to a new bus_ops callback Ulf Hansson 2021-05-07 7:15 ` Avri Altman 2021-05-09 18:48 ` Linus Walleij 2021-05-06 14:58 ` [PATCH 2/2] mmc: core: Add support for cache ctrl for SD cards Ulf Hansson 2021-05-09 19:01 ` Linus Walleij 2021-05-10 14:32 ` Ulf Hansson 2021-05-10 9:10 ` Avri Altman 2021-05-10 10:41 ` Avri Altman 2021-05-10 14:41 ` Ulf Hansson 2021-05-11 8:22 ` Avri Altman 2021-05-10 7:39 ` [PATCH 0/2] mmc: core: Implement " Avri Altman 2021-05-10 9:44 ` Ulf Hansson 2021-05-10 10:12 ` Avri Altman [this message]
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