From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To: <linux-mm@kvack.org>, <linux-acpi@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <x86@kernel.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>, <rafael@kernel.org>,
<linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>, <linuxarm@huawei.com>,
Dan Williams <dan.j.williams@intel.com>,
Brice Goglin <Brice.Goglin@inria.fr>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: [PATCH v7 3/6] ACPI: Let ACPI know we support Generic Initiator Affinity Structures
Date: Mon, 13 Jul 2020 23:55:57 +0800 [thread overview]
Message-ID: <20200713155600.2272743-4-Jonathan.Cameron@huawei.com> (raw)
In-Reply-To: <20200713155600.2272743-1-Jonathan.Cameron@huawei.com>
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>
---
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 54002670cb7a..0ac96fb67515 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -302,6 +302,7 @@ 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 1414b7e0a486..40ec5f2544ed 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -546,6 +546,7 @@ 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;
--
2.19.1
next prev parent reply other threads:[~2020-07-13 15:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 15:55 [PATCH v7 0/6] ACPI: Support Generic Initiator proximity domains Jonathan Cameron
2020-07-13 15:55 ` [PATCH v7 1/6] ACPI: Support Generic Initiator only domains Jonathan Cameron
2020-07-13 15:55 ` [PATCH v7 2/6] x86: Support Generic Initiator only proximity domains Jonathan Cameron
2020-07-13 15:55 ` Jonathan Cameron [this message]
2020-07-13 15:55 ` [PATCH v7 4/6] ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3 Jonathan Cameron
2020-07-13 15:55 ` [PATCH v7 5/6] node: Add access1 class to represent CPU to memory characteristics Jonathan Cameron
2020-07-13 15:56 ` [PATCH v7 6/6] docs: mm: numaperf.rst Add brief description for access class 1 Jonathan Cameron
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