From d52bb94d56676acd9bdac8e097257a87b4b1b2e1 Mon Sep 17 00:00:00 2001 From: Venkatesh Pallipadi Date: Wed, 14 Dec 2005 15:05:00 -0500 Subject: [PATCH] Enable P-state software coordination via _PDC http://bugzilla.kernel.org/show_bug.cgi?id=5737 Signed-off-by: Venkatesh Pallipadi Signed-off-by: Len Brown --- arch/i386/kernel/acpi/processor.c | 2 +- arch/x86_64/kernel/acpi/processor.c | 2 +- include/acpi/pdc_intel.h | 5 +++++ 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/i386/kernel/acpi/processor.c b/arch/i386/kernel/acpi/processor.c index 9f4cc02717..b54fded498 100644 --- a/arch/i386/kernel/acpi/processor.c +++ b/arch/i386/kernel/acpi/processor.c @@ -47,7 +47,7 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c) buf[2] = ACPI_PDC_C_CAPABILITY_SMP; if (cpu_has(c, X86_FEATURE_EST)) - buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP; + buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP; obj->type = ACPI_TYPE_BUFFER; obj->buffer.length = 12; diff --git a/arch/x86_64/kernel/acpi/processor.c b/arch/x86_64/kernel/acpi/processor.c index 3bdc2baa5b..81fcb3f869 100644 --- a/arch/x86_64/kernel/acpi/processor.c +++ b/arch/x86_64/kernel/acpi/processor.c @@ -44,7 +44,7 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c) buf[0] = ACPI_PDC_REVISION_ID; buf[1] = 1; - buf[2] = ACPI_PDC_EST_CAPABILITY_SMP; + buf[2] = ACPI_PDC_EST_CAPABILITY_SWSMP; obj->type = ACPI_TYPE_BUFFER; obj->buffer.length = 12; diff --git a/include/acpi/pdc_intel.h b/include/acpi/pdc_intel.h index 3fa81d55cd..c5472be6f3 100644 --- a/include/acpi/pdc_intel.h +++ b/include/acpi/pdc_intel.h @@ -18,6 +18,11 @@ ACPI_PDC_C_C1_HALT | \ ACPI_PDC_P_FFH) +#define ACPI_PDC_EST_CAPABILITY_SWSMP (ACPI_PDC_SMP_C1PT | \ + ACPI_PDC_C_C1_HALT | \ + ACPI_PDC_SMP_P_SWCOORD | \ + ACPI_PDC_P_FFH) + #define ACPI_PDC_C_CAPABILITY_SMP (ACPI_PDC_SMP_C2C3 | \ ACPI_PDC_SMP_C1PT | \ ACPI_PDC_C_C1_HALT) -- 2.39.5