| To: | apatard@mandriva.com |
|---|---|
| Subject: | Re: [loongson-PATCH-v2 23/23] Hibernation Support in mips system |
| From: | Atsushi Nemoto <anemo@mba.ocn.ne.jp> |
| Date: | Fri, 29 May 2009 00:32:49 +0900 (JST) |
| Cc: | wuzhangjin@gmail.com, linux-mips@linux-mips.org, ralf@linux-mips.org, wuzj@lemote.com, yanh@lemote.com, philippe@cowpig.ca, r0bertz@gentoo.org, zhangfx@lemote.com, loongson-dev@googlegroups.com, der.herr@hofr.at, liujl@lemote.com, erwan@thiscow.com |
| In-reply-to: | <m3my8yoovk.fsf@anduin.mandriva.com> |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <cover.1243362545.git.wuzj@lemote.com> <1483a7cb0f587bd329ea3ca8d3af2881afadaf5e.1243362545.git.wuzj@lemote.com> <m3my8yoovk.fsf@anduin.mandriva.com> |
| Sender: | linux-mips-bounce@linux-mips.org |
On Wed, 27 May 2009 11:51:11 +0200, Arnaud Patard <apatard@mandriva.com> wrote: > > +LEAF(swsusp_arch_resume) ... > > you really need to flush cache/tlb here. If you don't do that you'll get > some weird bugs. I also wonder if we need to flush cache on swsusp_arch_suspend. Maybe kernel pages does not need to be flushed on here, but how about user pages with dcache aliasing? It seems swsusp_save() reads from source page via kernel mapping without any care for coherency... --- Atsushi Nemoto |
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