On Mon 2015-01-12 14:41:50, Grant Likely wrote: > On Mon, Jan 12, 2015 at 2:23 PM, Pavel Machek <pavel@xxxxxx> wrote: > > On Sat 2015-01-10 14:44:02, Grant Likely wrote: > >> On Wed, Dec 17, 2014 at 10:26 PM, Grant Likely <grant.likely@xxxxxxxxxx> wrote: > >> > On Tue, Dec 16, 2014 at 11:27 AM, Arnd Bergmann <arnd@xxxxxxxx> wrote: > >> >> On Monday 15 December 2014 19:18:16 Al Stone wrote: > >> >>> 7. Why is ACPI required? > >> >>> * Problem: > >> >>> * arm64 maintainers still haven't been convinced that ACPI is > >> >>> necessary. > >> >>> * Why do hardware and OS vendors say ACPI is required? > >> >>> * Status: Al & Grant collecting statements from OEMs to be posted > >> >>> publicly early in the new year; firmware summit for broader > >> >>> discussion planned. > >> >> > >> >> I was particularly hoping to see better progress on this item. It > >> >> really shouldn't be that hard to explain why someone wants this feature. > >> > > >> > I've written something up in as a reply on the firmware summit thread. > >> > I'm going to rework it to be a standalone document and post it > >> > publicly. I hope that should resolve this issue. > >> > >> I've posted an article on my blog, but I'm reposting it here because > >> the mailing list is more conducive to discussion... > >> > >> http://www.secretlab.ca/archives/151 > > > > Unfortunately, I seen the blog post before the mailing list post, so > > here's reply in blog format. > > > > Grant Likely published article about ACPI and ARM at > > > > http://www.secretlab.ca/archives/151 > > > > . He acknowledges systems with ACPI are harder to debug, but because > > Microsoft says so, we have to use ACPI (basically). > > Please reread the blog post. Microsoft is a factor, but it is not the > primary driver by any means. Ok, so what is the primary reason? As far as I could tell it is "Microsoft wants ACPI" and "hardware people want Microsoft" and "fragmentation is bad so we do ACPI" (1) (and maybe "someone at RedHat says they want ACPI" -- but RedHat people should really speak for themselves.) You snipped quite a lot of reasons why ACPI is inferior that were below this line in email. Pavel (1) ignoring fact that it causes fragmentation between servers and phones. -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
