Until we tell ACPI that we support generic initiators, it will have
to operate in fall back domain mode and all _PXM entries should
be on existing non GI domains.
This patch sets the relevant OSC bit to make that happen.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
---
Note that this will need platform guards unless we make generic initiators
work on all ACPI platforms from the start.
drivers/acpi/bus.c | 1 +
include/linux/acpi.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 5c093ce01bcd..461fb393346a 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -315,6 +315,7 @@ static void acpi_bus_osc_support(void)
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT;
capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PCLPI_SUPPORT;
+ capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_GENERIC_INITIATOR_SUPPORT;
#ifdef CONFIG_X86
if (boot_cpu_has(X86_FEATURE_HWP)) {
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 87715f20b69a..760c6f3d57f0 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -498,6 +498,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
#define OSC_SB_PCLPI_SUPPORT 0x00000080
#define OSC_SB_OSLPI_SUPPORT 0x00000100
#define OSC_SB_CPC_DIVERSE_HIGH_SUPPORT 0x00001000
+#define OSC_SB_GENERIC_INITIATOR_SUPPORT 0x00002000
extern bool osc_sb_apei_support_acked;
extern bool osc_pc_lpi_support_confirmed;
--
2.18.0
