Module Name: src Committed By: jruoho Date: Sat Aug 14 17:27:34 UTC 2010
Modified Files: src/sys/dev/acpi: acpi_cpu_cstate.c acpi_cpu_pstate.c Log Message: Do not accidentally write zeros to (PSTATE_CNT and CST_CNT) registers. To generate a diff of this commit: cvs rdiff -u -r1.26 -r1.27 src/sys/dev/acpi/acpi_cpu_cstate.c cvs rdiff -u -r1.18 -r1.19 src/sys/dev/acpi/acpi_cpu_pstate.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/dev/acpi/acpi_cpu_cstate.c diff -u src/sys/dev/acpi/acpi_cpu_cstate.c:1.26 src/sys/dev/acpi/acpi_cpu_cstate.c:1.27 --- src/sys/dev/acpi/acpi_cpu_cstate.c:1.26 Sat Aug 14 05:41:22 2010 +++ src/sys/dev/acpi/acpi_cpu_cstate.c Sat Aug 14 17:27:34 2010 @@ -1,4 +1,4 @@ -/* $NetBSD: acpi_cpu_cstate.c,v 1.26 2010/08/14 05:41:22 jruoho Exp $ */ +/* $NetBSD: acpi_cpu_cstate.c,v 1.27 2010/08/14 17:27:34 jruoho Exp $ */ /*- * Copyright (c) 2010 Jukka Ruohonen <jruoho...@iki.fi> @@ -27,7 +27,7 @@ * SUCH DAMAGE. */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: acpi_cpu_cstate.c,v 1.26 2010/08/14 05:41:22 jruoho Exp $"); +__KERNEL_RCSID(0, "$NetBSD: acpi_cpu_cstate.c,v 1.27 2010/08/14 17:27:34 jruoho Exp $"); #include <sys/param.h> #include <sys/cpu.h> @@ -511,7 +511,7 @@ const uint8_t val = AcpiGbl_FADT.CstControl; const uint32_t addr = AcpiGbl_FADT.SmiCommand; - if (addr == 0) + if (addr == 0 || val == 0) return; (void)AcpiOsWritePort(addr, val, 8); Index: src/sys/dev/acpi/acpi_cpu_pstate.c diff -u src/sys/dev/acpi/acpi_cpu_pstate.c:1.18 src/sys/dev/acpi/acpi_cpu_pstate.c:1.19 --- src/sys/dev/acpi/acpi_cpu_pstate.c:1.18 Sat Aug 14 05:41:22 2010 +++ src/sys/dev/acpi/acpi_cpu_pstate.c Sat Aug 14 17:27:34 2010 @@ -1,4 +1,4 @@ -/* $NetBSD: acpi_cpu_pstate.c,v 1.18 2010/08/14 05:41:22 jruoho Exp $ */ +/* $NetBSD: acpi_cpu_pstate.c,v 1.19 2010/08/14 17:27:34 jruoho Exp $ */ /*- * Copyright (c) 2010 Jukka Ruohonen <jruoho...@iki.fi> @@ -27,7 +27,7 @@ * SUCH DAMAGE. */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: acpi_cpu_pstate.c,v 1.18 2010/08/14 05:41:22 jruoho Exp $"); +__KERNEL_RCSID(0, "$NetBSD: acpi_cpu_pstate.c,v 1.19 2010/08/14 17:27:34 jruoho Exp $"); #include <sys/param.h> #include <sys/evcnt.h> @@ -529,7 +529,7 @@ const uint8_t val = AcpiGbl_FADT.PstateControl; const uint32_t addr = AcpiGbl_FADT.SmiCommand; - if (addr == 0) + if (addr == 0 || val == 0) return; (void)AcpiOsWritePort(addr, val, 8);