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ACPI: Let ACPI know we support Generic Initiator Affinity Structures

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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 <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Jonathan Cameron authored and Rafael J. Wysocki committed 2020-10-02 18:51:57 +02:00
1 parent 73bf7382de
commit 01aabca2fd
2 files changed
+5
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drivers/acpi/bus.c
+4
View File
@@ -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
View File
@@ -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;