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 ec47ec81f0ecd1362fb14d6a9186fa5a6306bd5b..4d269df0082fb38c4303f9571dfbb349c08682c6 100644 (file)
--- a/drivers/iommu/intel/svm.c
+++ b/drivers/iommu/intel/svm.c
@@ -67,7 +67,7 @@ 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);