[SPARC64]: NUMA device infrastructure.
Record and propagate NUMA information for devices.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index 0183970..e2bb979 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -127,10 +127,12 @@
static void *dma_4v_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_addrp, gfp_t gfp)
{
- struct iommu *iommu;
unsigned long flags, order, first_page, npages, n;
+ struct iommu *iommu;
+ struct page *page;
void *ret;
long entry;
+ int nid;
size = IO_PAGE_ALIGN(size);
order = get_order(size);
@@ -139,10 +141,12 @@
npages = size >> IO_PAGE_SHIFT;
- first_page = __get_free_pages(gfp, order);
- if (unlikely(first_page == 0UL))
+ nid = dev->archdata.numa_node;
+ page = alloc_pages_node(nid, gfp, order);
+ if (unlikely(!page))
return NULL;
+ first_page = (unsigned long) page_address(page);
memset((char *)first_page, 0, PAGE_SIZE << order);
iommu = dev->archdata.iommu;
@@ -899,6 +903,8 @@
pbm->next = pci_pbm_root;
pci_pbm_root = pbm;
+ pbm->numa_node = of_node_to_nid(dp);
+
pbm->scan_bus = pci_sun4v_scan_bus;
pbm->pci_ops = &sun4v_pci_ops;
pbm->config_space_reg_bits = 12;
@@ -913,6 +919,7 @@
pbm->name = dp->full_name;
printk("%s: SUN4V PCI Bus Module\n", pbm->name);
+ printk("%s: On NUMA node %d\n", pbm->name, pbm->numa_node);
pci_determine_mem_io_space(pbm);