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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>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: [PATCH V5 4/4] ACPI: Let ACPI know we support Generic Initiator Affinity Structures
Date: Fri, 4 Oct 2019 19:43:30 +0800	[thread overview]
Message-ID: <20191004114330.104746-5-Jonathan.Cameron@huawei.com> (raw)
In-Reply-To: <20191004114330.104746-1-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 48bc96d45bab..9d40e465232f 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 8b4e516bac00..195b21e93aaa 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;
-- 
2.20.1


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: "Rafael J . Wysocki" <rjw@rjwysocki.net>,
	linuxarm@huawei.com, Keith Busch <keith.busch@intel.com>,
	jglisse@redhat.com,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH V5 4/4] ACPI: Let ACPI know we support Generic Initiator Affinity Structures
Date: Fri, 4 Oct 2019 19:43:30 +0800	[thread overview]
Message-ID: <20191004114330.104746-5-Jonathan.Cameron@huawei.com> (raw)
In-Reply-To: <20191004114330.104746-1-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 48bc96d45bab..9d40e465232f 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 8b4e516bac00..195b21e93aaa 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;
-- 
2.20.1


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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2019-10-04 11:44 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-04 11:43 [PATCH V5 0/4] ACPI: Support Generic Initiator proximity domains Jonathan Cameron
2019-10-04 11:43 ` Jonathan Cameron
2019-10-04 11:43 ` [PATCH V5 1/4] ACPI: Support Generic Initiator only domains Jonathan Cameron
2019-10-04 11:43   ` Jonathan Cameron
2019-10-18 10:18   ` Rafael J. Wysocki
2019-10-18 10:18     ` Rafael J. Wysocki
2019-10-18 12:46     ` Jonathan Cameron
2019-10-18 12:46       ` Jonathan Cameron
2019-11-07 14:54       ` Rafael J. Wysocki
2019-11-07 14:54         ` Rafael J. Wysocki
2019-11-12 17:07         ` Jonathan Cameron
2019-11-12 17:07           ` Jonathan Cameron
2019-11-12 17:55   ` Dan Williams
2019-11-12 17:55     ` Dan Williams
2019-11-13  9:47     ` Jonathan Cameron
2019-11-13  9:47       ` Jonathan Cameron
2019-11-13 13:57       ` Tao Xu
2019-11-13 13:57         ` Tao Xu
2019-11-13 16:52         ` Dan Williams
2019-11-13 16:52           ` Dan Williams
2019-11-13 17:56           ` Jonathan Cameron
2019-11-13 17:56             ` Jonathan Cameron
2019-11-13 17:48         ` Jonathan Cameron
2019-11-13 17:48           ` Jonathan Cameron
2019-11-13 23:20           ` Dan Williams
2019-11-13 23:20             ` Dan Williams
2019-11-14 11:26             ` Jonathan Cameron
2019-11-14 11:26               ` Jonathan Cameron
2019-11-16 20:45               ` Dan Williams
2019-11-16 20:45                 ` Dan Williams
2019-11-18 17:18                 ` Brice Goglin
2019-11-18 17:18                   ` Brice Goglin
2019-10-04 11:43 ` [PATCH V5 2/4] arm64: " Jonathan Cameron
2019-10-04 11:43   ` Jonathan Cameron
2019-10-04 11:43 ` [PATCH V5 3/4] x86: Support Generic Initiator only proximity domains Jonathan Cameron
2019-10-04 11:43   ` Jonathan Cameron
2019-10-07 14:55   ` Ingo Molnar
2019-10-07 14:55     ` Ingo Molnar
2019-10-08 11:17     ` Jonathan Cameron
2019-10-08 11:17       ` Jonathan Cameron
2019-10-04 11:43 ` Jonathan Cameron [this message]
2019-10-04 11:43   ` [PATCH V5 4/4] ACPI: Let ACPI know we support Generic Initiator Affinity Structures Jonathan Cameron

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