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authorJonathan Cameron <Jonathan.Cameron@huawei.com>2020-09-30 16:05:44 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-10-02 18:51:57 +0200
commit01aabca2fd545554905321029e6c4c5b2fedb345 (patch)
tree0ad7dbef0a11375b626c8ea11112bff37c7421e0 /drivers/acpi/bus.c
parentx86: Support Generic Initiator only proximity domains (diff)
downloadlinux-01aabca2fd545554905321029e6c4c5b2fedb345.tar.xz
linux-01aabca2fd545554905321029e6c4c5b2fedb345.zip
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: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/bus.c')
-rw-r--r--drivers/acpi/bus.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 54002670cb7a..113c661eb848 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -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;