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Peter Anvin" , the arch/x86 maintainers , kernel list , Josh Poimboeuf , Andy Lutomirski , Arnaldo Carvalho de Melo Subject: Re: AMD DC graphics display code enables -mhard-float, -msse, -msse2 without any visible FPU state protection Message-Id: <20200404173257.a9231d8129ce616145960c26@kernel.org> In-Reply-To: <3f5565d3-90a5-be3e-d79d-715d7b94880d@infradead.org> References: <4c5fe55d-9db9-2f61-59b2-1fb2e1b45ed0@amd.com> <20200402141308.GB20730@hirez.programming.kicks-ass.net> <20200403142837.f61a18d7bd32fd73777479ad@kernel.org> <20200403112113.GN20730@hirez.programming.kicks-ass.net> <20200404120808.05e9aa61500265be2e031bd6@kernel.org> <3f5565d3-90a5-be3e-d79d-715d7b94880d@infradead.org> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.32; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 3 Apr 2020 20:15:11 -0700 Randy Dunlap wrote: > On 4/3/20 8:08 PM, Masami Hiramatsu wrote: > > +static inline int insn_is_fpu(struct insn *insn) > > +{ > > + if (!insn->opcode.got) > > + insn_get_opcode(insn); > > + if (inat_is_fpu(insn->attr)) { > > + if (insn->attr & INAT_FPUIFVEX) > > + return insn_is_avx(insn); > > + return 1; > > + } > > return 0; // ?? Oops, right! Hm, I need to add a caller for this API... Thanks, > > > +} > > + > > > -- > ~Randy > -- Masami Hiramatsu