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| author | Vasant Hegde <vasant.hegde@amd.com> | 2023-03-21 10:23:47 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-03-22 15:43:39 +0100 |
| commit | 0d571dcbe7c6d36dcfcb8e04a49cc01fe462d171 (patch) | |
| tree | d75be2be5e0d6751ccedec4dade0189e5f268f1b /drivers/iommu/amd/iommu.c | |
| parent | Linux 6.3-rc3 (diff) | |
| download | linux-0d571dcbe7c6d36dcfcb8e04a49cc01fe462d171.tar.xz linux-0d571dcbe7c6d36dcfcb8e04a49cc01fe462d171.zip | |
iommu/amd: Allocate page table using numa locality info
Introduce 'struct protection_domain->nid' variable. It will contain
IOMMU NUMA node ID. And allocate page table pages using IOMMU numa
locality info. This optimizes page table walk by IOMMU.
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20230321092348.6127-2-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd/iommu.c')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 5a505ba5467e..5452d0dd6569 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -1662,6 +1662,10 @@ static void do_attach(struct iommu_dev_data *dev_data, dev_data->domain = domain; list_add(&dev_data->list, &domain->dev_list); + /* Update NUMA Node ID */ + if (domain->nid == NUMA_NO_NODE) + domain->nid = dev_to_node(dev_data->dev); + /* Do reference counting */ domain->dev_iommu[iommu->index] += 1; domain->dev_cnt += 1; @@ -2097,6 +2101,8 @@ static struct protection_domain *protection_domain_alloc(unsigned int type) if (type == IOMMU_DOMAIN_IDENTITY) return domain; + domain->nid = NUMA_NO_NODE; + pgtbl_ops = alloc_io_pgtable_ops(pgtable, &domain->iop.pgtbl_cfg, domain); if (!pgtbl_ops) { domain_id_free(domain->id); |