From: Lu Baolu <baolu.lu@linux.intel.com>
To: John Garry <john.garry@huawei.com>,
joro@8bytes.org, will@kernel.org, dwmw2@infradead.org,
robin.murphy@arm.com
Cc: baolu.lu@linux.intel.com, linux-kernel@vger.kernel.org,
iommu@lists.linux-foundation.org, linuxarm@huawei.com,
thunder.leizhen@huawei.com, chenxiang66@hisilicon.com
Subject: Re: [PATCH v12 3/5] iommu/vt-d: Add support for IOMMU default DMA mode build options
Date: Sat, 12 Jun 2021 10:22:05 +0800 [thread overview]
Message-ID: <4f2cec34-bad9-e1bf-85c1-04d1a0c1aecf@linux.intel.com> (raw)
In-Reply-To: <1623414043-40745-4-git-send-email-john.garry@huawei.com>
On 2021/6/11 20:20, John Garry wrote:
> @@ -453,8 +452,7 @@ static int __init intel_iommu_setup(char *str)
> pr_warn("intel_iommu=forcedac deprecated; use iommu.forcedac instead\n");
> iommu_dma_forcedac = true;
> } else if (!strncmp(str, "strict", 6)) {
> - pr_info("Disable batched IOTLB flush\n");
> - intel_iommu_strict = 1;
> + iommu_set_dma_strict(true);
I would like to deprecate this command line and ask users to use
iommu.strict instead.
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -436,7 +436,7 @@ static int __init intel_iommu_setup(char *str)
pr_warn("intel_iommu=forcedac deprecated; use
iommu.forcedac instead\n");
iommu_dma_forcedac = true;
} else if (!strncmp(str, "strict", 6)) {
- pr_info("Disable batched IOTLB flush\n");
+ pr_warn("intel_iommu=strict deprecated; use
iommu.strict instead\n");
intel_iommu_strict = 1;
Also update Documentation/admin-guide/kernel-parameters.txt accordingly.
Best regards,
baolu
next prev parent reply other threads:[~2021-06-12 2:22 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-11 12:20 [PATCH v12 0/5] Enhance IOMMU default DMA mode build options John Garry
2021-06-11 12:20 ` [PATCH v12 1/5] iommu: Print strict or lazy mode at init time John Garry
2021-06-14 15:54 ` Robin Murphy
2021-06-11 12:20 ` [PATCH v12 2/5] iommu: Enhance IOMMU default DMA mode build options John Garry
2021-06-12 1:21 ` Lu Baolu
2021-06-14 8:11 ` John Garry
2021-06-12 2:12 ` Lu Baolu
2021-06-14 16:03 ` Robin Murphy
2021-06-11 12:20 ` [PATCH v12 3/5] iommu/vt-d: Add support for " John Garry
2021-06-12 2:14 ` Lu Baolu
2021-06-14 8:03 ` John Garry
2021-06-15 7:26 ` Lu Baolu
2021-06-15 8:25 ` Robin Murphy
2021-06-16 8:42 ` Lu Baolu
2021-06-12 2:22 ` Lu Baolu [this message]
2021-06-14 7:53 ` John Garry
2021-06-14 14:11 ` Robin Murphy
2021-06-14 14:19 ` John Garry
2021-06-14 15:05 ` Robin Murphy
2021-06-11 12:20 ` [PATCH v12 4/5] iommu/amd: " John Garry
2021-06-11 12:20 ` [PATCH v12 5/5] iommu: Remove mode argument from iommu_set_dma_strict() John Garry
2021-06-12 2:23 ` Lu Baolu
2021-06-14 7:46 ` John Garry
2021-06-14 16:25 ` Robin Murphy
2021-06-14 17:03 ` John Garry
2021-06-14 17:19 ` Robin Murphy
2021-06-14 17:24 ` John Garry
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