On 30 May 2014 18:58, Ashwin Chaugule <ashwin.chaugule@xxxxxxxxxx> wrote: > Hello, > > On 30 May 2014 09:03, Jassi Brar <jassisinghbrar@xxxxxxxxx> wrote: >> On Fri, May 30, 2014 at 3:47 PM, Mark Brown <broonie@xxxxxxxxxx> wrote: >>> On Tue, May 27, 2014 at 04:29:58PM -0400, Ashwin Chaugule wrote: >>>> ACPI 5.0a+ spec defines a generic mode of communication >>>> between the OS and a platform such as the BMC. This medium >>>> (PCC) is typically used by CPPC (ACPI CPU Performance management), >>>> RAS (ACPI reliability protocol) and MPST (ACPI Memory power >>>> states). >>>> >>>> This patch adds initial support for PCC to be usable by the >>>> aforementioned PCC clients. >>> >>> This looks an awful lot like a mailbox - should it be integrated with >>> the mailbox system that Jassi (CCed) has been working on getting >>> upstream? Not deleting any context for Jassi's benefit. >>> >> Yeah, the mailbox api should support PCC as such, with pcc-test.c as >> the client above and pcc.c as the controller driver below it. > > Interesting. Do you have a git repo with this framework where I could > have a look? > Please scrape it from https://lkml.org/lkml/2014/5/15/49 My platform also uses the doorbell mechanism with request and response written in shared-memory, so I am confident the mailbox api should work for PCC. Regards, -Jassi -- 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
