From: Jacob Pan <jacob.jun.pan@linux.intel.com>
Date: Thu, 11 Apr 2024 03:07:43 +0000 (+0800)
Subject: iommu/vt-d: Allocate local memory for page request queue
X-Git-Tag: v5.10.216~117
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5ef15c06ac9e273d679b8f71bf5e5e132e9094ed;p=thirdparty%2Fkernel%2Fstable.git

iommu/vt-d: Allocate local memory for page request queue

[ Upstream commit a34f3e20ddff02c4f12df2c0635367394e64c63d ]

The page request queue is per IOMMU, its allocation should be made
NUMA-aware for performance reasons.

Fixes: a222a7f0bb6c ("iommu/vt-d: Implement page request handling")
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20240403214007.985600-1-jacob.jun.pan@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
index aabf56272b86d..02e3183a4c67e 100644
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -33,7 +33,7 @@ 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);