Commit 01aabca2 authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Rafael J. Wysocki
Browse files

ACPI: Let ACPI know we support Generic Initiator Affinity Structures 



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: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 73bf7382

drivers/acpi/bus.c

+4 −0
Original line number Diff line number Diff line
@@ -303,7 +303,11 @@ 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_ARM64

	capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_GENERIC_INITIATOR_SUPPORT;

#endif

#ifdef CONFIG_X86

	capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_GENERIC_INITIATOR_SUPPORT;

	if (boot_cpu_has(X86_FEATURE_HWP)) {

		capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPC_SUPPORT;

		capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_CPCV2_SUPPORT;

include/linux/acpi.h

+1 −0
Original line number Diff line number Diff line
@@ -545,6 +545,7 @@ 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;

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