From: Jacob Pan <jacob.jun.pan@linux.intel.com>
To: LKML <linux-kernel@vger.kernel.org>,
iommu@lists.linux.dev, "Lu Baolu" <baolu.lu@linux.intel.com>,
Joerg Roedel <joro@8bytes.org>
Cc: Raj Ashok <ashok.raj@intel.com>,
"Tian, Kevin" <kevin.tian@intel.com>, Yi Liu <yi.l.liu@intel.com>,
Jacob Pan <jacob.jun.pan@linux.intel.com>
Subject: [PATCH] iommu/vt-d: Allocate local memory for page request queue
Date: Wed, 3 Apr 2024 14:40:07 -0700 [thread overview]
Message-ID: <20240403214007.985600-1-jacob.jun.pan@linux.intel.com> (raw)
The page request queue is per IOMMU, its allocation should be made
NUMA-aware for performance reasons.
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
---
drivers/iommu/intel/svm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index c1bed89b1026..ee3b469e2da1 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -66,7 +66,7 @@ int intel_svm_enable_prq(struct intel_iommu *iommu)
struct page *pages;
int irq, ret;
- pages = alloc_pages(GFP_KERNEL | __GFP_ZERO, PRQ_ORDER);
+ pages = alloc_pages_node(iommu->node, GFP_KERNEL | __GFP_ZERO, PRQ_ORDER);
if (!pages) {
pr_warn("IOMMU: %s: Failed to allocate page request queue\n",
iommu->name);
--
2.25.1
next reply other threads:[~2024-04-03 21:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-03 21:40 Jacob Pan [this message]
2024-04-08 7:36 ` [PATCH] iommu/vt-d: Allocate local memory for page request queue Tian, Kevin
2024-04-11 2:49 ` Baolu Lu
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