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From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To: <linux-mm@kvack.org>, <linux-acpi@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>, <x86@kernel.org>
Cc: Keith Busch <keith.busch@intel.com>, <jglisse@redhat.com>,
	"Rafael J . Wysocki" <rjw@rjwysocki.net>, <linuxarm@huawei.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dan Williams <dan.j.williams@intel.com>,
	Tao Xu <tao3.xu@intel.com>, Brice Goglin <brice.goglin@gmail.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Hanjun Guo <guohanjun@huawei.com>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: [PATCH V6 4/7] ACPI: Let ACPI know we support Generic Initiator Affinity Structures
Date: Mon, 16 Dec 2019 23:38:06 +0800	[thread overview]
Message-ID: <20191216153809.105463-5-Jonathan.Cameron@huawei.com> (raw)
In-Reply-To: <20191216153809.105463-1-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 0f37a7d5fa77..7dba8ffdc68a 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -505,6 +505,7 @@ 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


WARNING: multiple messages have this Message-ID (diff)
From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To: <linux-mm@kvack.org>, <linux-acpi@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>, <x86@kernel.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Brice Goglin <brice.goglin@gmail.com>, Tao Xu <tao3.xu@intel.com>,
	Sudeep Holla <sudeep.holla@arm.com>,
	"Rafael J . Wysocki" <rjw@rjwysocki.net>,
	linuxarm@huawei.com, Keith Busch <keith.busch@intel.com>,
	jglisse@redhat.com,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	Hanjun Guo <guohanjun@huawei.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH V6 4/7] ACPI: Let ACPI know we support Generic Initiator Affinity Structures
Date: Mon, 16 Dec 2019 23:38:06 +0800	[thread overview]
Message-ID: <20191216153809.105463-5-Jonathan.Cameron@huawei.com> (raw)
In-Reply-To: <20191216153809.105463-1-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 0f37a7d5fa77..7dba8ffdc68a 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -505,6 +505,7 @@ 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


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  parent reply	other threads:[~2019-12-16 15:39 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-16 15:38 [PATCH V6 0/7] ACPI: Support Generic Initiator proximity domains Jonathan Cameron
2019-12-16 15:38 ` Jonathan Cameron
2019-12-16 15:38 ` [PATCH V6 1/7] ACPI: Support Generic Initiator only domains Jonathan Cameron
2019-12-16 15:38   ` Jonathan Cameron
2019-12-16 15:38 ` [PATCH V6 2/7] arm64: " Jonathan Cameron
2019-12-16 15:38   ` Jonathan Cameron
2019-12-16 15:38 ` [PATCH V6 3/7] x86: Support Generic Initiator only proximity domains Jonathan Cameron
2019-12-16 15:38   ` Jonathan Cameron
2019-12-16 15:38 ` Jonathan Cameron [this message]
2019-12-16 15:38   ` [PATCH V6 4/7] ACPI: Let ACPI know we support Generic Initiator Affinity Structures Jonathan Cameron
2019-12-16 15:38 ` [PATCH V6 5/7] ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3 Jonathan Cameron
2019-12-16 15:38   ` Jonathan Cameron
2019-12-16 15:38 ` [PATCH V6 6/7] node: Add access1 class to represent CPU to memory characteristics Jonathan Cameron
2019-12-16 15:38   ` Jonathan Cameron
2019-12-16 15:38 ` [PATCH V6 7/7] docs: mm: numaperf.rst Add brief description for access class 1 Jonathan Cameron
2019-12-16 15:38   ` Jonathan Cameron
2019-12-18 11:34   ` Brice Goglin
2019-12-18 11:34     ` Brice Goglin
2019-12-18 14:37     ` Jonathan Cameron
2019-12-18 14:37       ` Jonathan Cameron
2019-12-18 11:32 ` [PATCH V6 0/7] ACPI: Support Generic Initiator proximity domains Brice Goglin
2019-12-18 11:32   ` Brice Goglin
2019-12-18 14:50   ` Jonathan Cameron
2019-12-18 14:50     ` Jonathan Cameron
2019-12-20 21:40     ` Brice Goglin
2019-12-20 21:40       ` Brice Goglin
2020-01-02 15:27       ` Jonathan Cameron
2020-01-02 15:27         ` Jonathan Cameron
2020-01-02 21:37         ` Brice Goglin
2020-01-02 21:37           ` Brice Goglin
2020-01-03 10:09           ` Jonathan Cameron
2020-01-03 10:09             ` Jonathan Cameron
2020-01-03 12:18             ` Brice Goglin
2020-01-03 12:18               ` Brice Goglin
2020-01-03 13:08               ` Jonathan Cameron
2020-01-03 13:08                 ` Jonathan Cameron

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