acpi/bus: Enable HWP CPPC objects

[mirror_ubuntu-bionic-kernel.git] / drivers / acpi / bus.c

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 56190d00fd87042461f430c5aa1cdd82fb60dc8d..2f381ba1e1f243477b890c436d1484b9c6fe09f3 100644 (file)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -331,6 +331,13 @@ static void acpi_bus_osc_support(void)
        capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT;
        capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PCLPI_SUPPORT;
 
+#ifdef CONFIG_X86
+       if (boot_cpu_has(X86_FEATURE_HWP)) {
+               capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPC_SUPPORT;
+               capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPCV2_SUPPORT;
+       }
+#endif
+
        if (!ghes_disable)
                capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT;
        if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))