Date: Mon, 4 Jul 2022 20:43:46 GMT From: Dmitry Chagin <dchagin@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 03473e8ec8fa - main - linux(4): Use saved cpu feature bits Message-ID: <202207042043.264KhkvC080627@gitrepo.freebsd.org>
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The branch main has been updated by dchagin: URL: https://cgit.FreeBSD.org/src/commit/?id=03473e8ec8fa8d0f1ea30f85d8796ea9bf94bf29 commit 03473e8ec8fa8d0f1ea30f85d8796ea9bf94bf29 Author: Dmitry Chagin <dchagin@FreeBSD.org> AuthorDate: 2022-07-04 20:42:07 +0000 Commit: Dmitry Chagin <dchagin@FreeBSD.org> CommitDate: 2022-07-04 20:42:07 +0000 linux(4): Use saved cpu feature bits MFC after: 3 days --- sys/x86/linux/linux_vdso_selector_x86.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/sys/x86/linux/linux_vdso_selector_x86.c b/sys/x86/linux/linux_vdso_selector_x86.c index d93b26ed44df..bd8ae333801b 100644 --- a/sys/x86/linux/linux_vdso_selector_x86.c +++ b/sys/x86/linux/linux_vdso_selector_x86.c @@ -61,21 +61,10 @@ linux_vdso_tsc_selector_idx() int linux_vdso_cpu_selector_idx() { - u_int amd_feature, cpu_exthigh, p[4]; if ((cpu_stdext_feature2 & CPUID_STDEXT2_RDPID) != 0) return (LINUX_VDSO_CPU_RDPID); - amd_feature = 0; - if (cpu_feature != 0) { - do_cpuid(0x80000000, p); - cpu_exthigh = p[0]; - if (cpu_exthigh >= 0x80000001) { - do_cpuid(0x80000001, p); - amd_feature = p[3]; - } - } - return ((amd_feature & AMDID_RDTSCP) == 0 ? LINUX_VDSO_CPU_DEFAULT : LINUX_VDSO_CPU_RDTSCP); }
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