Date: Tue, 12 Jan 2021 15:16:55 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Emmanuel Vadot <manu@freebsd.org> Cc: src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org Subject: Re: git: 11d62b6f31ab - main - linuxkpi: add kernel_fpu_begin/kernel_fpu_end Message-ID: <X/2hR9Hi3Jhf5ZNs@kib.kiev.ua> In-Reply-To: <202101121143.10CBh02x095972@gitrepo.freebsd.org> References: <202101121143.10CBh02x095972@gitrepo.freebsd.org>
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On Tue, Jan 12, 2021 at 11:43:00AM +0000, Emmanuel Vadot wrote: > The branch main has been updated by manu: > > URL: https://cgit.FreeBSD.org/src/commit/?id=11d62b6f31ab4e99df6d0c6c23406b57eaa37f41 > > commit 11d62b6f31ab4e99df6d0c6c23406b57eaa37f41 > Author: Emmanuel Vadot <manu@FreeBSD.org> > AuthorDate: 2021-01-12 11:02:38 +0000 > Commit: Emmanuel Vadot <manu@FreeBSD.org> > CommitDate: 2021-01-12 11:31:00 +0000 > > linuxkpi: add kernel_fpu_begin/kernel_fpu_end > > With newer AMD GPUs (>=Navi,Renoir) there is FPU context usage in the > amdgpu driver. > The `kernel_fpu_begin/end` implementations in drm did not even allow nested > begin-end blocks. Does Linux allow more then one thread to execute kernel_fpu_begin ?
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