[SPARC64]: NUMA device infrastructure.

Record and propagate NUMA information for devices.

Signed-off-by: David S. Miller <davem@davemloft.net>

16 files changed, 91 insertions, 23 deletions

diff --git a/arch/sparc64/kernel/ebus.c b/arch/sparc64/kernel/ebus.c
index 04ab81cb4f48..bc2632274840 100644
--- a/arch/sparc64/kernel/ebus.c
+++ b/arch/sparc64/kernel/ebus.c
@@ -396,6 +396,7 @@ static void __init fill_ebus_device(struct device_node *dp, struct linux_ebus_de
         sd->op = &dev->ofdev;
         sd->iommu = dev->bus->ofdev.dev.parent->archdata.iommu;
         sd->stc = dev->bus->ofdev.dev.parent->archdata.stc;
+        sd->numa_node = dev->bus->ofdev.dev.parent->archdata.numa_node;
 
         dev->ofdev.node = dp;
         dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
diff --git a/arch/sparc64/kernel/iommu.c b/arch/sparc64/kernel/iommu.c
index 756fa24eeefa..2a37a6ca2a16 100644
--- a/arch/sparc64/kernel/iommu.c
+++ b/arch/sparc64/kernel/iommu.c
@@ -173,9 +173,11 @@ void iommu_range_free(struct iommu *iommu, dma_addr_t dma_addr, unsigned long np
 }
 
 int iommu_table_init(struct iommu *iommu, int tsbsize,
-                     u32 dma_offset, u32 dma_addr_mask)
+                     u32 dma_offset, u32 dma_addr_mask,
+                     int numa_node)
 {
-        unsigned long i, tsbbase, order, sz, num_tsb_entries;
+        unsigned long i, order, sz, num_tsb_entries;
+        struct page *page;
 
         num_tsb_entries = tsbsize / sizeof(iopte_t);
 
@@ -188,11 +190,12 @@ int iommu_table_init(struct iommu *iommu, int tsbsize,
         /* Allocate and initialize the free area map.  */
         sz = num_tsb_entries / 8;
         sz = (sz + 7UL) & ~7UL;
-        iommu->arena.map = kzalloc(sz, GFP_KERNEL);
+        iommu->arena.map = kmalloc_node(sz, GFP_KERNEL, numa_node);
         if (!iommu->arena.map) {
                 printk(KERN_ERR "IOMMU: Error, kmalloc(arena.map) failed.\n");
                 return -ENOMEM;
         }
+        memset(iommu->arena.map, 0, sz);
         iommu->arena.limit = num_tsb_entries;
 
         if (tlb_type != hypervisor)
@@ -201,21 +204,23 @@ int iommu_table_init(struct iommu *iommu, int tsbsize,
         /* Allocate and initialize the dummy page which we
          * set inactive IO PTEs to point to.
          */
-        iommu->dummy_page = get_zeroed_page(GFP_KERNEL);
-        if (!iommu->dummy_page) {
+        page = alloc_pages_node(numa_node, GFP_KERNEL, 0);
+        if (!page) {
                 printk(KERN_ERR "IOMMU: Error, gfp(dummy_page) failed.\n");
                 goto out_free_map;
         }
+        iommu->dummy_page = (unsigned long) page_address(page);
+        memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
         iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
 
         /* Now allocate and setup the IOMMU page table itself.  */
         order = get_order(tsbsize);
-        tsbbase = __get_free_pages(GFP_KERNEL, order);
-        if (!tsbbase) {
+        page = alloc_pages_node(numa_node, GFP_KERNEL, order);
+        if (!page) {
                 printk(KERN_ERR "IOMMU: Error, gfp(tsb) failed.\n");
                 goto out_free_dummy_page;
         }
-        iommu->page_table = (iopte_t *)tsbbase;
+        iommu->page_table = (iopte_t *)page_address(page);
 
         for (i = 0; i < num_tsb_entries; i++)
                 iopte_make_dummy(iommu, &iommu->page_table[i]);
@@ -276,20 +281,24 @@ static inline void iommu_free_ctx(struct iommu *iommu, int ctx)
 static void *dma_4u_alloc_coherent(struct device *dev, size_t size,
                                    dma_addr_t *dma_addrp, gfp_t gfp)
 {
+        unsigned long flags, order, first_page;
         struct iommu *iommu;
+        struct page *page;
+        int npages, nid;
         iopte_t *iopte;
-        unsigned long flags, order, first_page;
         void *ret;
-        int npages;
 
         size = IO_PAGE_ALIGN(size);
         order = get_order(size);
         if (order >= 10)
                 return NULL;
 
-        first_page = __get_free_pages(gfp, order);
-        if (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;
diff --git a/arch/sparc64/kernel/isa.c b/arch/sparc64/kernel/isa.c
index b5f7b354084f..a2af5ed784c9 100644
--- a/arch/sparc64/kernel/isa.c
+++ b/arch/sparc64/kernel/isa.c
@@ -92,6 +92,7 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
                 sd->op = &isa_dev->ofdev;
                 sd->iommu = isa_br->ofdev.dev.parent->archdata.iommu;
                 sd->stc = isa_br->ofdev.dev.parent->archdata.stc;
+                sd->numa_node = isa_br->ofdev.dev.parent->archdata.numa_node;
 
                 isa_dev->ofdev.node = dp;
                 isa_dev->ofdev.dev.parent = &isa_br->ofdev.dev;
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 0fd9db95b896..9e58e8cba1c3 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -6,6 +6,7 @@
 #include <linux/mod_devicetable.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
+#include <linux/irq.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 
@@ -660,6 +661,7 @@ static unsigned int __init build_one_device_irq(struct of_device *op,
         struct device_node *dp = op->node;
         struct device_node *pp, *ip;
         unsigned int orig_irq = irq;
+        int nid;
 
         if (irq == 0xffffffff)
                 return irq;
@@ -672,7 +674,7 @@ static unsigned int __init build_one_device_irq(struct of_device *op,
                         printk("%s: direct translate %x --> %x\n",
                                dp->full_name, orig_irq, irq);
 
-                return irq;
+                goto out;
         }
 
         /* Something more complicated.  Walk up to the root, applying
@@ -744,6 +746,14 @@ static unsigned int __init build_one_device_irq(struct of_device *op,
                 printk("%s: Apply IRQ trans [%s] %x --> %x\n",
                        op->node->full_name, ip->full_name, orig_irq, irq);
 
+out:
+        nid = of_node_to_nid(dp);
+        if (nid != -1) {
+                cpumask_t numa_mask = node_to_cpumask(nid);
+
+                irq_set_affinity(irq, numa_mask);
+        }
+
         return irq;
 }
 
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index 545356b00e2e..49f912766519 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -369,10 +369,12 @@ struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm,
         sd->host_controller = pbm;
         sd->prom_node = node;
         sd->op = of_find_device_by_node(node);
+        sd->numa_node = pbm->numa_node;
 
         sd = &sd->op->dev.archdata;
         sd->iommu = pbm->iommu;
         sd->stc = &pbm->stc;
+        sd->numa_node = pbm->numa_node;
 
         type = of_get_property(node, "device_type", NULL);
         if (type == NULL)
@@ -1159,6 +1161,16 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
         return 0;
 }
 
+#ifdef CONFIG_NUMA
+int pcibus_to_node(struct pci_bus *pbus)
+{
+        struct pci_pbm_info *pbm = pbus->sysdata;
+
+        return pbm->numa_node;
+}
+EXPORT_SYMBOL(pcibus_to_node);
+#endif
+
 /* Return the domain nuber for this pci bus */
 
 int pci_domain_nr(struct pci_bus *pbus)
diff --git a/arch/sparc64/kernel/pci_fire.c b/arch/sparc64/kernel/pci_fire.c
index 7571ed563147..d23bb6f53cda 100644
--- a/arch/sparc64/kernel/pci_fire.c
+++ b/arch/sparc64/kernel/pci_fire.c
@@ -71,7 +71,8 @@ static int pci_fire_pbm_iommu_init(struct pci_pbm_info *pbm)
          */
         fire_write(iommu->iommu_flushinv, ~(u64)0);
 
-        err = iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask);
+        err = iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask,
+                               pbm->numa_node);
         if (err)
                 return err;
 
@@ -449,6 +450,8 @@ static int __init pci_fire_pbm_init(struct pci_controller_info *p,
         pbm->next = pci_pbm_root;
         pci_pbm_root = pbm;
 
+        pbm->numa_node = -1;
+
         pbm->scan_bus = pci_fire_scan_bus;
         pbm->pci_ops = &sun4u_pci_ops;
         pbm->config_space_reg_bits = 12;
diff --git a/arch/sparc64/kernel/pci_impl.h b/arch/sparc64/kernel/pci_impl.h
index f79c923fdd8f..218bac4ff79b 100644
--- a/arch/sparc64/kernel/pci_impl.h
+++ b/arch/sparc64/kernel/pci_impl.h
@@ -148,6 +148,8 @@ struct pci_pbm_info {
         struct pci_bus                  *pci_bus;
         void (*scan_bus)(struct pci_pbm_info *);
         struct pci_ops                  *pci_ops;
+
+        int                             numa_node;
 };
 
 struct pci_controller_info {
diff --git a/arch/sparc64/kernel/pci_msi.c b/arch/sparc64/kernel/pci_msi.c
index d6d64b44af63..db5e8fd8f674 100644
--- a/arch/sparc64/kernel/pci_msi.c
+++ b/arch/sparc64/kernel/pci_msi.c
@@ -279,11 +279,17 @@ static int bringup_one_msi_queue(struct pci_pbm_info *pbm,
                                  unsigned long devino)
 {
         int irq = ops->msiq_build_irq(pbm, msiqid, devino);
-        int err;
+        int err, nid;
 
         if (irq < 0)
                 return irq;
 
+        nid = pbm->numa_node;
+        if (nid != -1) {
+                cpumask_t numa_mask = node_to_cpumask(nid);
+
+                irq_set_affinity(irq, numa_mask);
+        }
         err = request_irq(irq, sparc64_msiq_interrupt, 0,
                           "MSIQ",
                           &pbm->msiq_irq_cookies[msiqid - pbm->msiq_first]);
diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
index 0bad96e5d184..994dbe0603da 100644
--- a/arch/sparc64/kernel/pci_psycho.c
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -848,7 +848,8 @@ static int psycho_iommu_init(struct pci_pbm_info *pbm)
         /* Leave diag mode enabled for full-flushing done
          * in pci_iommu.c
          */
-        err = iommu_table_init(iommu, IO_TSB_SIZE, 0xc0000000, 0xffffffff);
+        err = iommu_table_init(iommu, IO_TSB_SIZE, 0xc0000000, 0xffffffff,
+                               pbm->numa_node);
         if (err)
                 return err;
 
@@ -979,6 +980,8 @@ static void __init psycho_pbm_init(struct pci_controller_info *p,
         pbm->next = pci_pbm_root;
         pci_pbm_root = pbm;
 
+        pbm->numa_node = -1;
+
         pbm->scan_bus = psycho_scan_bus;
         pbm->pci_ops = &sun4u_pci_ops;
         pbm->config_space_reg_bits = 8;
diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c
index 1c5f5fa2339f..4c34195baf37 100644
--- a/arch/sparc64/kernel/pci_sabre.c
+++ b/arch/sparc64/kernel/pci_sabre.c
@@ -704,7 +704,7 @@ static int sabre_iommu_init(struct pci_pbm_info *pbm,
          * in pci_iommu.c
          */
         err = iommu_table_init(iommu, tsbsize * 1024 * 8,
-                               dvma_offset, dma_mask);
+                               dvma_offset, dma_mask, pbm->numa_node);
         if (err)
                 return err;
 
@@ -737,6 +737,8 @@ static void __init sabre_pbm_init(struct pci_controller_info *p,
         pbm->name = dp->full_name;
         printk("%s: SABRE PCI Bus Module\n", pbm->name);
 
+        pbm->numa_node = -1;
+
         pbm->scan_bus = sabre_scan_bus;
         pbm->pci_ops = &sun4u_pci_ops;
         pbm->config_space_reg_bits = 8;
diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c
index e30609362322..615edd9c8e2a 100644
--- a/arch/sparc64/kernel/pci_schizo.c
+++ b/arch/sparc64/kernel/pci_schizo.c
@@ -1220,7 +1220,8 @@ static int schizo_pbm_iommu_init(struct pci_pbm_info *pbm)
         /* Leave diag mode enabled for full-flushing done
          * in pci_iommu.c
          */
-        err = iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask);
+        err = iommu_table_init(iommu, tsbsize * 8 * 1024, vdma[0], dma_mask,
+                               pbm->numa_node);
         if (err)
                 return err;
 
@@ -1379,6 +1380,8 @@ static int __init schizo_pbm_init(struct pci_controller_info *p,
         pbm->next = pci_pbm_root;
         pci_pbm_root = pbm;
 
+        pbm->numa_node = -1;
+
         pbm->scan_bus = schizo_scan_bus;
         pbm->pci_ops = &sun4u_pci_ops;
         pbm->config_space_reg_bits = 8;
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index 01839706bd52..e2bb9790039c 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -127,10 +127,12 @@ static inline long iommu_batch_end(void)
 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 @@ static void *dma_4v_alloc_coherent(struct device *dev, size_t size,
 
         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 @@ static void __init pci_sun4v_pbm_init(struct pci_controller_info *p,
         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 @@ static void __init pci_sun4v_pbm_init(struct pci_controller_info *p,
         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);
 
diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c
index d1fb13ba02b5..fa2827c4a3ad 100644
--- a/arch/sparc64/kernel/sbus.c
+++ b/arch/sparc64/kernel/sbus.c
@@ -544,6 +544,7 @@ static void __init sbus_iommu_init(int __node, struct sbus_bus *sbus)
 
         sbus->ofdev.dev.archdata.iommu = iommu;
         sbus->ofdev.dev.archdata.stc = strbuf;
+        sbus->ofdev.dev.archdata.numa_node = -1;
 
         reg_base = regs + SYSIO_IOMMUREG_BASE;
         iommu->iommu_control = reg_base + IOMMU_CONTROL;
@@ -575,7 +576,7 @@ static void __init sbus_iommu_init(int __node, struct sbus_bus *sbus)
                sbus->portid, regs);
 
         /* Setup for TSB_SIZE=7, TBW_SIZE=0, MMU_DE=1, MMU_EN=1 */
-        if (iommu_table_init(iommu, IO_TSB_SIZE, MAP_BASE, 0xffffffff))
+        if (iommu_table_init(iommu, IO_TSB_SIZE, MAP_BASE, 0xffffffff, -1))
                 goto fatal_memory_error;
 
         control = upa_readq(iommu->iommu_control);
diff --git a/include/asm-sparc/device.h b/include/asm-sparc/device.h
index 680e51d87374..19790eb99cc6 100644
--- a/include/asm-sparc/device.h
+++ b/include/asm-sparc/device.h
@@ -16,6 +16,8 @@ struct dev_archdata {
 
         struct device_node      *prom_node;
         struct of_device        *op;
+
+        int                     numa_node;
 };
 
 #endif /* _ASM_SPARC_DEVICE_H */
diff --git a/include/asm-sparc/prom.h b/include/asm-sparc/prom.h
index df5dc4422483..fd55522481cd 100644
--- a/include/asm-sparc/prom.h
+++ b/include/asm-sparc/prom.h
@@ -77,6 +77,11 @@ extern int of_getintprop_default(struct device_node *np,
                                  const char *name,
                                  int def);
 extern int of_find_in_proplist(const char *list, const char *match, int len);
+#ifdef CONFIG_NUMA
+extern int of_node_to_nid(struct device_node *dp);
+#else
+#define of_node_to_nid(dp)      (-1)
+#endif
 
 extern void prom_build_devicetree(void);
 
diff --git a/include/asm-sparc64/iommu.h b/include/asm-sparc64/iommu.h
index 46325ddee23b..d7b9afcba08b 100644
--- a/include/asm-sparc64/iommu.h
+++ b/include/asm-sparc64/iommu.h
@@ -56,6 +56,7 @@ struct strbuf {
 };
 
 extern int iommu_table_init(struct iommu *iommu, int tsbsize,
-                            u32 dma_offset, u32 dma_addr_mask);
+                            u32 dma_offset, u32 dma_addr_mask,
+                            int numa_node);
 
 #endif /* !(_SPARC64_IOMMU_H) */