diff options
Diffstat (limited to 'drivers/acpi/bus.c')
| -rw-r--r-- | drivers/acpi/bus.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index d466c8195314..245fb0828e47 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -300,6 +300,8 @@ EXPORT_SYMBOL_GPL(osc_sb_native_usb4_support_confirmed); bool osc_sb_cppc2_support_acked; +bool osc_sb_ffh_opregion_support_confirmed; + static u8 sb_uuid_str[] = "0811B06E-4A27-44F9-8D60-3CBBC22E7B48"; static void acpi_bus_osc_negotiate_platform_control(void) { @@ -383,6 +385,8 @@ static void acpi_bus_osc_negotiate_platform_control(void) capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_NATIVE_USB4_SUPPORT; osc_cpc_flexible_adr_space_confirmed = capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_CPC_FLEXIBLE_ADR_SPACE; + osc_sb_ffh_opregion_support_confirmed = + capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_FFH_OPR_SUPPORT; } kfree(context.ret.pointer); @@ -1408,6 +1412,8 @@ static int __init acpi_init(void) disable_acpi(); return result; } + if (osc_sb_ffh_opregion_support_confirmed) + acpi_init_ffh(); pci_mmcfg_late_init(); acpi_iort_init(); |