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virtio_pmem: populate numa information 

Compute the numa information for a virtio_pmem device from the memory
range of the device. Previously, the target_node was always 0 since
the ndr_desc.target_node field was never explicitly set. The code for
computing the numa node is taken from cxl_pmem_region_probe in
drivers/cxl/pmem.c.

Signed-off-by: Michael Sammler <sammler@google.com>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@amd.com>
Tested-by: Mina Almasry <almasrymina@google.com>
Message-Id: <20221115214036.1571015-1-sammler@google.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael Sammler 2022-11-15 21:40:36 +00:00 committed by Michael S. Tsirkin
parent 0e84f918fa
commit d5ff73bbb0
1 changed files with 9 additions and 2 deletions
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11
drivers/nvdimm/virtio_pmem.c
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@ -32,7 +32,6 @@ static int init_vq(struct virtio_pmem *vpmem)
static int virtio_pmem_probe(struct virtio_device *vdev)
{
struct nd_region_desc ndr_desc = {};
int nid = dev_to_node(&vdev->dev);
struct nd_region *nd_region;
struct virtio_pmem *vpmem;
struct resource res;
@ -79,7 +78,15 @@ static int virtio_pmem_probe(struct virtio_device *vdev)
dev_set_drvdata(&vdev->dev, vpmem->nvdimm_bus);
ndr_desc.res = &res;
ndr_desc.numa_node = nid;
ndr_desc.numa_node = memory_add_physaddr_to_nid(res.start);
ndr_desc.target_node = phys_to_target_node(res.start);
if (ndr_desc.target_node == NUMA_NO_NODE) {
ndr_desc.target_node = ndr_desc.numa_node;
dev_dbg(&vdev->dev, "changing target node from %d to %d",
NUMA_NO_NODE, ndr_desc.target_node);
}
ndr_desc.flush = async_pmem_flush;
ndr_desc.provider_data = vdev;
set_bit(ND_REGION_PAGEMAP, &ndr_desc.flags);