From: John Garry <john.garry@huawei.com> To: <joro@8bytes.org>, <will@kernel.org> Cc: <iommu@lists.linux-foundation.org>, <linux-kernel@vger.kernel.org>, <hch@lst.de>, <robin.murphy@arm.com>, John Garry <john.garry@huawei.com> Subject: [PATCH] iommu: Print default strict or lazy mode at init time Date: Fri, 28 May 2021 21:37:54 +0800 [thread overview] Message-ID: <1622209074-37899-1-git-send-email-john.garry@huawei.com> (raw) As well as the default domain type, it's useful to know whether strict or lazy mode is default for DMA domains, so add this info in a separate print. Signed-off-by: John Garry <john.garry@huawei.com> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 808ab70d5df5..f25fae62f077 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -138,6 +138,11 @@ static int __init iommu_subsys_init(void) (iommu_cmd_line & IOMMU_CMD_LINE_DMA_API) ? "(set via kernel command line)" : ""); + pr_info("Default DMA domain mode: %s %s\n", + iommu_dma_strict ? "strict" : "lazy", + (iommu_cmd_line & IOMMU_CMD_LINE_STRICT) ? + "(set via kernel command line)" : ""); + return 0; } subsys_initcall(iommu_subsys_init); -- 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> Cc: iommu@lists.linux-foundation.org, robin.murphy@arm.com, linux-kernel@vger.kernel.org, hch@lst.de Subject: [PATCH] iommu: Print default strict or lazy mode at init time Date: Fri, 28 May 2021 21:37:54 +0800 [thread overview] Message-ID: <1622209074-37899-1-git-send-email-john.garry@huawei.com> (raw) As well as the default domain type, it's useful to know whether strict or lazy mode is default for DMA domains, so add this info in a separate print. Signed-off-by: John Garry <john.garry@huawei.com> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 808ab70d5df5..f25fae62f077 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -138,6 +138,11 @@ static int __init iommu_subsys_init(void) (iommu_cmd_line & IOMMU_CMD_LINE_DMA_API) ? "(set via kernel command line)" : ""); + pr_info("Default DMA domain mode: %s %s\n", + iommu_dma_strict ? "strict" : "lazy", + (iommu_cmd_line & IOMMU_CMD_LINE_STRICT) ? + "(set via kernel command line)" : ""); + return 0; } subsys_initcall(iommu_subsys_init); -- 2.26.2 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
next reply other threads:[~2021-05-28 13:42 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-05-28 13:37 John Garry [this message] 2021-05-28 13:37 ` [PATCH] iommu: Print default strict or lazy mode at init time John Garry 2021-06-01 9:09 ` Robin Murphy 2021-06-01 9:09 ` Robin Murphy 2021-06-01 15:50 ` John Garry 2021-06-01 15:50 ` John Garry 2021-06-01 16:42 ` Robin Murphy 2021-06-01 16:42 ` Robin Murphy 2021-06-01 17:44 ` John Garry 2021-06-01 17:44 ` John Garry
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