queue-6.1/iommu-vt-d-allocate-local-memory-for-page-request-qu.patch

   1 From b5a1ba11b1c4eaff1247a620f252afd8b118874c Mon Sep 17 00:00:00 2001
   2 From: Sasha Levin <sashal@kernel.org>
   3 Date: Thu, 11 Apr 2024 11:07:43 +0800
   4 Subject: iommu/vt-d: Allocate local memory for page request queue
   5
   6 From: Jacob Pan <jacob.jun.pan@linux.intel.com>
   7
   8 [ Upstream commit a34f3e20ddff02c4f12df2c0635367394e64c63d ]
   9
  10 The page request queue is per IOMMU, its allocation should be made
  11 NUMA-aware for performance reasons.
  12
  13 Fixes: a222a7f0bb6c ("iommu/vt-d: Implement page request handling")
  14 Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
  15 Reviewed-by: Kevin Tian <kevin.tian@intel.com>
  16 Link: https://lore.kernel.org/r/20240403214007.985600-1-jacob.jun.pan@linux.intel.com
  17 Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
  18 Signed-off-by: Joerg Roedel <jroedel@suse.de>
  19 Signed-off-by: Sasha Levin <sashal@kernel.org>
  20 ---
  21  drivers/iommu/intel/svm.c | 2 +-
  22  1 file changed, 1 insertion(+), 1 deletion(-)
  23
  24 diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c
  25 index 03b25358946c4..cb862ab96873e 100644
  26 --- a/drivers/iommu/intel/svm.c
  27 +++ b/drivers/iommu/intel/svm.c
  28 @@ -71,7 +71,7 @@ int intel_svm_enable_prq(struct intel_iommu *iommu)
  29         struct page *pages;
  30         int irq, ret;
  31
  32 -       pages = alloc_pages(GFP_KERNEL | __GFP_ZERO, PRQ_ORDER);
  33 +       pages = alloc_pages_node(iommu->node, GFP_KERNEL | __GFP_ZERO, PRQ_ORDER);
  34         if (!pages) {
  35                 pr_warn("IOMMU: %s: Failed to allocate page request queue\n",
  36                         iommu->name);
  37 --
  38 2.43.0
  39