On Sat, Aug 30, 2014 at 01:58:20PM -0400, John Baldwin wrote: > On Saturday, August 30, 2014 05:48:38 PM John Baldwin wrote: > > New Revision: 270850 > > URL: http://svnweb.freebsd.org/changeset/base/270850 > > > > Log: > > Save and restore FPU state across suspend and resume. In earlier > > revisions of this patch, resumectx() called npxresume() directly, but that > > doesn't work because resumectx() runs with a non-standard %cs selector. > > Instead, all of the FPU suspend/resume handling is done in C. > > This mostly fixes suspend and resume in X on a little 32-bit only netbook I > have. I needed an additional patch to the i915 code to prevent it from > tearing down its interrupt handler in suspend and re-establishing it during > resume (this sort of thing is not needed in drivers and isn't safe because > suspend runs pinned to CPU 0 and unregistering an interrupt needs to bind to > the CPU the IDT vector is assigned to).
John, thanks for a lot for making more and more laptops sleep-ready, as this will certainly help FreeBSD to be considered as a suitable platform for them. ./danfe _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
