Module Name: src Committed By: jruoho Date: Sun Feb 27 17:27:28 UTC 2011
Modified Files: src/sys/arch/x86/acpi: acpi_cpu_md.c Log Message: Claim to support the dependency coordination during the _PDC/_OSC query. (Although we do not actually support it.) Only after these bits are set, many Intel-based BIOSes are willing to relinquish the necessary information. To generate a diff of this commit: cvs rdiff -u -r1.46 -r1.47 src/sys/arch/x86/acpi/acpi_cpu_md.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/arch/x86/acpi/acpi_cpu_md.c diff -u src/sys/arch/x86/acpi/acpi_cpu_md.c:1.46 src/sys/arch/x86/acpi/acpi_cpu_md.c:1.47 --- src/sys/arch/x86/acpi/acpi_cpu_md.c:1.46 Fri Feb 25 17:23:34 2011 +++ src/sys/arch/x86/acpi/acpi_cpu_md.c Sun Feb 27 17:27:28 2011 @@ -1,4 +1,4 @@ -/* $NetBSD: acpi_cpu_md.c,v 1.46 2011/02/25 17:23:34 jruoho Exp $ */ +/* $NetBSD: acpi_cpu_md.c,v 1.47 2011/02/27 17:27:28 jruoho Exp $ */ /*- * Copyright (c) 2010, 2011 Jukka Ruohonen <jruoho...@iki.fi> @@ -27,7 +27,7 @@ * SUCH DAMAGE. */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: acpi_cpu_md.c,v 1.46 2011/02/25 17:23:34 jruoho Exp $"); +__KERNEL_RCSID(0, "$NetBSD: acpi_cpu_md.c,v 1.47 2011/02/27 17:27:28 jruoho Exp $"); #include <sys/param.h> #include <sys/bus.h> @@ -130,10 +130,15 @@ return val; /* - * Basic SMP C-states (required for _CST). + * Basic SMP C-states (required for e.g. _CST). */ val |= ACPICPU_PDC_C_C1PT | ACPICPU_PDC_C_C2C3; + /* + * Claim to support dependency coordination. + */ + val |= ACPICPU_PDC_P_SW | ACPICPU_PDC_C_SW | ACPICPU_PDC_T_SW; + /* * If MONITOR/MWAIT is available, announce * support for native instructions in all C-states.