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From: John Garry <john.garry@huawei.com>
To: <joro@8bytes.org>, <will@kernel.org>, <dwmw2@infradead.org>,
	<baolu.lu@linux.intel.com>, <robin.murphy@arm.com>
Cc: <linux-kernel@vger.kernel.org>,
	<iommu@lists.linux-foundation.org>, <linuxarm@huawei.com>,
	<thunder.leizhen@huawei.com>, <chenxiang66@hisilicon.com>,
	<rdunlap@infradead.org>, John Garry <john.garry@huawei.com>
Subject: [PATCH v11 2/3] iommu/vt-d: Add support for IOMMU default DMA mode build options
Date: Tue, 8 Jun 2021 21:18:27 +0800	[thread overview]
Message-ID: <1623158308-180604-3-git-send-email-john.garry@huawei.com> (raw)
In-Reply-To: <1623158308-180604-1-git-send-email-john.garry@huawei.com>

From: Zhen Lei <thunder.leizhen@huawei.com>

Make IOMMU_DEFAULT_LAZY default for when INTEL_IOMMU config is set,
and make intel_iommu_strict initially hold value of
IS_ENABLED(CONFIG_IOMMU_DEFAULT_STRICT).

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
 drivers/iommu/Kconfig       | 1 +
 drivers/iommu/intel/iommu.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 369a3af9e5bf..b68ec7ed23c0 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -95,6 +95,7 @@ choice
 	depends on IOMMU_API
 	depends on X86 || IA64 || X86_64 || ARM || ARM64
 
+	default IOMMU_DEFAULT_LAZY if INTEL_IOMMU
 	default IOMMU_DEFAULT_STRICT
 	help
 	  This option allows an IOMMU DMA mode to be chosen at build time, to
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index be35284a2016..fe33347f4a1e 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -360,7 +360,7 @@ int intel_iommu_enabled = 0;
 EXPORT_SYMBOL_GPL(intel_iommu_enabled);
 
 static int dmar_map_gfx = 1;
-static int intel_iommu_strict;
+static int intel_iommu_strict = IS_ENABLED(CONFIG_IOMMU_DEFAULT_STRICT);
 static int intel_iommu_superpage = 1;
 static int iommu_identity_mapping;
 static int iommu_skip_te_disable;
-- 
2.26.2


WARNING: multiple messages have this Message-ID (diff)
From: John Garry <john.garry@huawei.com>
To: <joro@8bytes.org>, <will@kernel.org>, <dwmw2@infradead.org>,
	<baolu.lu@linux.intel.com>, <robin.murphy@arm.com>
Cc: rdunlap@infradead.org, linux-kernel@vger.kernel.org,
	linuxarm@huawei.com, iommu@lists.linux-foundation.org
Subject: [PATCH v11 2/3] iommu/vt-d: Add support for IOMMU default DMA mode build options
Date: Tue, 8 Jun 2021 21:18:27 +0800	[thread overview]
Message-ID: <1623158308-180604-3-git-send-email-john.garry@huawei.com> (raw)
In-Reply-To: <1623158308-180604-1-git-send-email-john.garry@huawei.com>

From: Zhen Lei <thunder.leizhen@huawei.com>

Make IOMMU_DEFAULT_LAZY default for when INTEL_IOMMU config is set,
and make intel_iommu_strict initially hold value of
IS_ENABLED(CONFIG_IOMMU_DEFAULT_STRICT).

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
 drivers/iommu/Kconfig       | 1 +
 drivers/iommu/intel/iommu.c | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 369a3af9e5bf..b68ec7ed23c0 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -95,6 +95,7 @@ choice
 	depends on IOMMU_API
 	depends on X86 || IA64 || X86_64 || ARM || ARM64
 
+	default IOMMU_DEFAULT_LAZY if INTEL_IOMMU
 	default IOMMU_DEFAULT_STRICT
 	help
 	  This option allows an IOMMU DMA mode to be chosen at build time, to
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index be35284a2016..fe33347f4a1e 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -360,7 +360,7 @@ int intel_iommu_enabled = 0;
 EXPORT_SYMBOL_GPL(intel_iommu_enabled);
 
 static int dmar_map_gfx = 1;
-static int intel_iommu_strict;
+static int intel_iommu_strict = IS_ENABLED(CONFIG_IOMMU_DEFAULT_STRICT);
 static int intel_iommu_superpage = 1;
 static int iommu_identity_mapping;
 static int iommu_skip_te_disable;
-- 
2.26.2

_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

  parent reply	other threads:[~2021-06-08 13:23 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-08 13:18 [PATCH v11 0/3] Enhance IOMMU default DMA mode build options John Garry
2021-06-08 13:18 ` John Garry
2021-06-08 13:18 ` [PATCH v11 1/3] iommu: " John Garry
2021-06-08 13:18   ` John Garry
2021-06-09 15:03   ` Robin Murphy
2021-06-09 15:03     ` Robin Murphy
2021-06-09 15:24     ` John Garry
2021-06-09 15:24       ` John Garry
2021-06-08 13:18 ` John Garry [this message]
2021-06-08 13:18   ` [PATCH v11 2/3] iommu/vt-d: Add support for " John Garry
2021-06-08 13:18 ` [PATCH v11 3/3] iommu/amd: " John Garry
2021-06-08 13:18   ` John Garry
2021-06-09  8:15 ` [PATCH v11 0/3] Enhance " Joerg Roedel
2021-06-09  8:15   ` Joerg Roedel
2021-06-10 16:25   ` John Garry
2021-06-10 16:25     ` John Garry

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