Date: Sat, 26 May 2018 11:14:41 +0100 From: Johannes Lundberg <johalun0@gmail.com> To: Konstantin Belousov <kostikbel@gmail.com> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: Floating point in kernel? Message-ID: <CAECmPwukNRp6igm8GZ%2BcMRDycjUEzFt880DAFGsUsWDPSkugLg@mail.gmail.com> In-Reply-To: <20180526101059.GM88128@kib.kiev.ua> References: <CAECmPws88aex8zpis5CMD4uvqxF33810jimVy3sHYJGyq%2BPCCw@mail.gmail.com> <20180526101059.GM88128@kib.kiev.ua>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sat, May 26, 2018 at 11:11 AM Konstantin Belousov <kostikbel@gmail.com> wrote: > On Sat, May 26, 2018 at 10:59:50AM +0100, Johannes Lundberg wrote: > > Hi > > > > The new AMD graphics drivers use floats in kernel space. > > Upstream Linux code has something like: > > kernel_fpu_begin(); > > ... > > kernel_fpu_end(); > > > > Do we have similar functions to save/restore FPU registers? > Read fpu_kern(9). > Thanks! Actually I found that just after hitting the send button :)
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAECmPwukNRp6igm8GZ%2BcMRDycjUEzFt880DAFGsUsWDPSkugLg>