From 46f18e3a28295a9e11a6ffa4478241c19bc93735 Mon Sep 17 00:00:00 2001 From: Venkatesh Pallipadi Date: Mon, 26 Jun 2006 00:34:43 -0400 Subject: ACPI: HW P-state coordination support Treat HW coordination as independent CPUs. This enables per-cpu monintoring of P-states http://bugzilla.kernel.org/show_bug.cgi?id=5737 Signed-off-by: Venkatesh Pallipadi Signed-off-by: Len Brown --- arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c') diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c index 5fd65325b81a..cf0ddc9ee0cd 100644 --- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -418,8 +418,14 @@ acpi_cpufreq_cpu_init ( goto err_free; perf = data->acpi_data; - policy->cpus = perf->shared_cpu_map; policy->shared_type = perf->shared_type; + /* + * Will let policy->cpus know about dependency only when software + * coordination is required. + */ + if (policy->shared_type == CPUFREQ_SHARED_TYPE_ALL || + policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) + policy->cpus = perf->shared_cpu_map; if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) { acpi_cpufreq_driver.flags |= CPUFREQ_CONST_LOOPS; -- cgit v1.2.3