diff options
| author | Jason Gunthorpe <jgg@nvidia.com> | 2024-08-29 21:06:17 -0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2024-09-04 11:38:34 +0200 |
| commit | 47f218d108950984b24af81f66356ceda380eb74 (patch) | |
| tree | 40c171e7deb3473c38d343796d5b906afe7bb439 /drivers/iommu/amd/io_pgtable_v2.c | |
| parent | 977fc27ca7f8a83b67ccd91264ac56b0fb996f51 (diff) | |
| download | lwn-47f218d108950984b24af81f66356ceda380eb74.tar.gz lwn-47f218d108950984b24af81f66356ceda380eb74.zip | |
iommu/amd: Store the nid in io_pgtable_cfg instead of the domain
We already have memory in the union here that is being wasted in AMD's
case, use it to store the nid.
Putting the nid here further isolates the io_pgtable code from the struct
protection_domain.
Fixup protection_domain_alloc so that the NID from the device is provided,
at this point dev is never NULL for AMD so this will now allocate the
first table pointer on the correct NUMA node.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/8-v2-831cdc4d00f3+1a315-amd_iopgtbl_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd/io_pgtable_v2.c')
| -rw-r--r-- | drivers/iommu/amd/io_pgtable_v2.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/iommu/amd/io_pgtable_v2.c b/drivers/iommu/amd/io_pgtable_v2.c index 45a6bc332639..1e3be8c5312b 100644 --- a/drivers/iommu/amd/io_pgtable_v2.c +++ b/drivers/iommu/amd/io_pgtable_v2.c @@ -251,7 +251,7 @@ static int iommu_v2_map_pages(struct io_pgtable_ops *ops, unsigned long iova, while (mapped_size < size) { map_size = get_alloc_page_size(pgsize); - pte = v2_alloc_pte(pdom->nid, pdom->iop.pgd, + pte = v2_alloc_pte(cfg->amd.nid, pdom->iop.pgd, iova, map_size, gfp, &updated); if (!pte) { ret = -EINVAL; @@ -359,10 +359,9 @@ static void v2_free_pgtable(struct io_pgtable *iop) static struct io_pgtable *v2_alloc_pgtable(struct io_pgtable_cfg *cfg, void *cookie) { struct amd_io_pgtable *pgtable = io_pgtable_cfg_to_data(cfg); - struct protection_domain *pdom = (struct protection_domain *)cookie; int ias = IOMMU_IN_ADDR_BIT_SIZE; - pgtable->pgd = iommu_alloc_page_node(pdom->nid, GFP_KERNEL); + pgtable->pgd = iommu_alloc_page_node(cfg->amd.nid, GFP_KERNEL); if (!pgtable->pgd) return NULL; |