Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762300AbZDBO70 (ORCPT ); Thu, 2 Apr 2009 10:59:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761036AbZDBO5V (ORCPT ); Thu, 2 Apr 2009 10:57:21 -0400 Received: from mga02.intel.com ([134.134.136.20]:60878 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761026AbZDBO5U (ORCPT ); Thu, 2 Apr 2009 10:57:20 -0400 Content-Type: multipart/mixed; boundary="===============1856120070==" MIME-Version: 1.0 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.39,314,1235980800"; d="scan'208";a="503019910" Message-Id: <20090402145713.021881000@intel.com> References: <20090402145455.597376000@intel.com> User-Agent: quilt/0.46-1 Date: Thu, 02 Apr 2009 16:55:01 +0200 From: markus.t.metzger@intel.com To: mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com Cc: markus.t.metzger@gmail.com, roland@redhat.com, eranian@googlemail.com, oleg@redhat.com, juan.villacis@intel.com, ak@linux.jf.intel.com, linux-kernel@vger.kernel.org, Markus Metzger Subject: [patch 06/18] x86, debugctlmsr: add _on_cpu variants to debugctlmsr functions Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2646 Lines: 87 --===============1856120070== MIME-Version: 1.0 Content-Disposition: inline; filename=tip.master.update_debugctlmsr_on_cpu.patch Add functions to get and set the debugctlmsr on different cpus. Signed-off-by: Markus Metzger --- arch/x86/include/asm/processor.h | 27 27 + 0 - 0 ! 1 file changed, 27 insertions(+) Index: b/arch/x86/include/asm/processor.h =================================================================== --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -785,6 +785,21 @@ static inline unsigned long get_debugctl return debugctlmsr; } +static inline unsigned long get_debugctlmsr_on_cpu(int cpu) +{ + u64 debugctlmsr = 0; + u32 val1, val2; + +#ifndef CONFIG_X86_DEBUGCTLMSR + if (boot_cpu_data.x86 < 6) + return 0; +#endif + rdmsr_on_cpu(cpu, MSR_IA32_DEBUGCTLMSR, &val1, &val2); + debugctlmsr = val1 | ((u64)val2 << 32); + + return debugctlmsr; +} + static inline void update_debugctlmsr(unsigned long debugctlmsr) { #ifndef CONFIG_X86_DEBUGCTLMSR @@ -794,6 +809,18 @@ static inline void update_debugctlmsr(un wrmsrl(MSR_IA32_DEBUGCTLMSR, debugctlmsr); } +static inline void update_debugctlmsr_on_cpu(int cpu, + unsigned long debugctlmsr) +{ +#ifndef CONFIG_X86_DEBUGCTLMSR + if (boot_cpu_data.x86 < 6) + return; +#endif + wrmsr_on_cpu(cpu, MSR_IA32_DEBUGCTLMSR, + (u32)((u64)debugctlmsr), + (u32)((u64)debugctlmsr >> 32)); +} + /* * from system description table in BIOS. Mostly for MCA use, but * others may find it useful: -- --===============1856120070== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. --===============1856120070==-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/