Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6

[karo-tx-linux.git] / arch / x86 / kernel / acpi / processor.c

diff --git a/arch/x86/kernel/acpi/processor.c b/arch/x86/kernel/acpi/processor.c
index a25db514c719ef939bbb9e8069339a50e39c4dbc..324eb0cab19ceb7c8353f402d78884f139c6741d 100644 (file)
--- a/arch/x86/kernel/acpi/processor.c
+++ b/arch/x86/kernel/acpi/processor.c
@@ -46,6 +46,12 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
        buf[1] = 1;
        buf[2] = ACPI_PDC_C_CAPABILITY_SMP;
 
+       /*
+        * The default of PDC_SMP_T_SWCOORD bit is set for intel x86 cpu so
+        * that OSPM is capable of native ACPI throttling software
+        * coordination using BIOS supplied _TSD info.
+        */
+       buf[2] |= ACPI_PDC_SMP_T_SWCOORD;
        if (cpu_has(c, X86_FEATURE_EST))
                buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP;