30 files changed, 220 insertions, 129 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/entry.S b/arch/sparc64/kernel/entry.S
index fb43c76bdc26..fd06e937ae1e 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -47,7 +47,7 @@ do_fpdis:
         ba,pt           %xcc, etrap
 109:     or             %g7, %lo(109b), %g7
         add             %g0, %g0, %g0
-        ba,a,pt         %xcc, rtrap_clr_l6
+        ba,a,pt         %xcc, rtrap
 
 1:      TRAP_LOAD_THREAD_REG(%g6, %g1)
         ldub            [%g6 + TI_FPSAVED], %g5
@@ -226,7 +226,7 @@ fp_other_bounce:
         call            do_fpother
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
         .globl          do_fpother_check_fitos
         .align          32
@@ -489,7 +489,7 @@ utrap_trap:		/* %g3=handler,%g4=level */
         call            bad_trap
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
 invoke_utrap:
         sllx            %g3, 3, %g3
@@ -607,7 +607,7 @@ __spitfire_cee_trap_continue:
         call            spitfire_access_error
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
         /* This is the trap handler entry point for ECC correctable
          * errors.  They are corrected, but we listen for the trap
@@ -686,7 +686,7 @@ __spitfire_data_access_exception_tl1:
         call            spitfire_data_access_exception_tl1
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
 __spitfire_data_access_exception:
         rdpr            %pstate, %g4
@@ -705,7 +705,7 @@ __spitfire_data_access_exception:
         call            spitfire_data_access_exception
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
         .globl          __spitfire_insn_access_exception
         .globl          __spitfire_insn_access_exception_tl1
@@ -725,7 +725,7 @@ __spitfire_insn_access_exception_tl1:
         call            spitfire_insn_access_exception_tl1
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
 __spitfire_insn_access_exception:
         rdpr            %pstate, %g4
@@ -743,7 +743,7 @@ __spitfire_insn_access_exception:
         call            spitfire_insn_access_exception
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
         /* These get patched into the trap table at boot time
          * once we know we have a cheetah processor.
@@ -937,7 +937,7 @@ do_dcpe_tl1_fatal:
         call            cheetah_plus_parity_error
          add            %sp, PTREGS_OFF, %o1
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
 do_icpe_tl1:
         rdpr            %tl, %g1                ! Save original trap level
@@ -979,7 +979,7 @@ do_icpe_tl1_fatal:
         call            cheetah_plus_parity_error
          add            %sp, PTREGS_OFF, %o1
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
         
 dcpe_icpe_tl1_common:
         /* Flush D-cache, re-enable D/I caches in DCU and finally
@@ -1281,7 +1281,7 @@ __do_privact:
         call            do_privact
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
         .globl          do_mna
 do_mna:
@@ -1308,7 +1308,7 @@ do_mna:
         call            mem_address_unaligned
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
         .globl          do_lddfmna
 do_lddfmna:
@@ -1326,7 +1326,7 @@ do_lddfmna:
         call            handle_lddfmna
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
         .globl          do_stdfmna
 do_stdfmna:
@@ -1344,7 +1344,7 @@ do_stdfmna:
         call            handle_stdfmna
          add            %sp, PTREGS_OFF, %o0
         ba,pt           %xcc, rtrap
-         clr            %l6
+         nop
 
         .globl  breakpoint_trap
 breakpoint_trap:
@@ -1424,13 +1424,13 @@ sys32_rt_sigreturn:
 1:              ldx             [%curptr + TI_FLAGS], %l5
                 andcc           %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0
                 be,pt           %icc, rtrap
-                 clr            %l6
+                 nop
                 add             %sp, PTREGS_OFF, %o0
                 call            syscall_trace
                  mov            1, %o1
 
                 ba,pt           %xcc, rtrap
-                 clr            %l6
+                 nop
 
         /* This is how fork() was meant to be done, 8 instruction entry.
          *
@@ -1559,7 +1559,7 @@ linux_sparc_syscall32:
 
         /* Linux native system calls enter here... */
         .align  32
-        .globl  linux_sparc_syscall, ret_sys_call
+        .globl  linux_sparc_syscall
 linux_sparc_syscall:
         /* Direct access to user regs, much faster. */
         cmp             %g1, NR_SYSCALLS                        ! IEU1  Group
@@ -1605,7 +1605,7 @@ ret_sys_call:
         bne,pn          %icc, linux_syscall_trace2
          add            %l1, 0x4, %l2                   ! npc = npc+4
         stx             %l1, [%sp + PTREGS_OFF + PT_V9_TPC]
-        ba,pt           %xcc, rtrap_clr_l6
+        ba,pt           %xcc, rtrap
          stx            %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]
 
 1:
@@ -1616,7 +1616,6 @@ ret_sys_call:
         sub             %g0, %o0, %o0
         or              %g3, %g2, %g3
         stx             %o0, [%sp + PTREGS_OFF + PT_V9_I0]
-        mov             1, %l6
         stx             %g3, [%sp + PTREGS_OFF + PT_V9_TSTATE]
         bne,pn          %icc, linux_syscall_trace2
          add            %l1, 0x4, %l2                   ! npc = npc+4
diff --git a/arch/sparc64/kernel/entry.h b/arch/sparc64/kernel/entry.h
index 4a91e9c6d31b..32fbab620852 100644
--- a/arch/sparc64/kernel/entry.h
+++ b/arch/sparc64/kernel/entry.h
@@ -20,7 +20,6 @@ extern void timer_interrupt(int irq, struct pt_regs *regs);
 
 extern void do_notify_resume(struct pt_regs *regs,
                              unsigned long orig_i0,
-                             int restart_syscall,
                              unsigned long thread_info_flags);
 
 extern asmlinkage void syscall_trace(struct pt_regs *regs,
diff --git a/arch/sparc64/kernel/etrap.S b/arch/sparc64/kernel/etrap.S
index 4b2bf9eb447a..b49d3b60bc0c 100644
--- a/arch/sparc64/kernel/etrap.S
+++ b/arch/sparc64/kernel/etrap.S
@@ -53,7 +53,11 @@ etrap_irq:
                 stx     %g3, [%g2 + STACKFRAME_SZ + PT_V9_TPC]
                 rd      %y, %g3
                 stx     %g1, [%g2 + STACKFRAME_SZ + PT_V9_TNPC]
+                rdpr    %tt, %g1
                 st      %g3, [%g2 + STACKFRAME_SZ + PT_V9_Y]
+                sethi   %hi(PT_REGS_MAGIC), %g3
+                or      %g3, %g1, %g1
+                st      %g1, [%g2 + STACKFRAME_SZ + PT_V9_MAGIC]
 
                 rdpr    %cansave, %g1
                 brnz,pt %g1, etrap_save
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/mdesc.c b/arch/sparc64/kernel/mdesc.c
index 910083589569..dde52bcf5c64 100644
--- a/arch/sparc64/kernel/mdesc.c
+++ b/arch/sparc64/kernel/mdesc.c
@@ -1,10 +1,10 @@
 /* mdesc.c: Sun4V machine description handling.
  *
- * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
+ * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
  */
 #include <linux/kernel.h>
 #include <linux/types.h>
-#include <linux/bootmem.h>
+#include <linux/lmb.h>
 #include <linux/log2.h>
 #include <linux/list.h>
 #include <linux/slab.h>
@@ -84,24 +84,28 @@ static void mdesc_handle_init(struct mdesc_handle *hp,
         hp->handle_size = handle_size;
 }
 
-static struct mdesc_handle * __init mdesc_bootmem_alloc(unsigned int mdesc_size)
+static struct mdesc_handle * __init mdesc_lmb_alloc(unsigned int mdesc_size)
 {
-        struct mdesc_handle *hp;
         unsigned int handle_size, alloc_size;
+        struct mdesc_handle *hp;
+        unsigned long paddr;
 
         handle_size = (sizeof(struct mdesc_handle) -
                        sizeof(struct mdesc_hdr) +
                        mdesc_size);
         alloc_size = PAGE_ALIGN(handle_size);
 
-        hp = __alloc_bootmem(alloc_size, PAGE_SIZE, 0UL);
-        if (hp)
-                mdesc_handle_init(hp, handle_size, hp);
+        paddr = lmb_alloc(alloc_size, PAGE_SIZE);
 
+        hp = NULL;
+        if (paddr) {
+                hp = __va(paddr);
+                mdesc_handle_init(hp, handle_size, hp);
+        }
         return hp;
 }
 
-static void mdesc_bootmem_free(struct mdesc_handle *hp)
+static void mdesc_lmb_free(struct mdesc_handle *hp)
 {
         unsigned int alloc_size, handle_size = hp->handle_size;
         unsigned long start, end;
@@ -124,9 +128,9 @@ static void mdesc_bootmem_free(struct mdesc_handle *hp)
         }
 }
 
-static struct mdesc_mem_ops bootmem_mdesc_ops = {
-        .alloc = mdesc_bootmem_alloc,
-        .free  = mdesc_bootmem_free,
+static struct mdesc_mem_ops lmb_mdesc_ops = {
+        .alloc = mdesc_lmb_alloc,
+        .free  = mdesc_lmb_free,
 };
 
 static struct mdesc_handle *mdesc_kmalloc(unsigned int mdesc_size)
@@ -888,7 +892,7 @@ void __init sun4v_mdesc_init(void)
 
         printk("MDESC: Size is %lu bytes.\n", len);
 
-        hp = mdesc_alloc(len, &bootmem_mdesc_ops);
+        hp = mdesc_alloc(len, &lmb_mdesc_ops);
         if (hp == NULL) {
                 prom_printf("MDESC: alloc of %lu bytes failed.\n", len);
                 prom_halt();
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 4a50da13ce48..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 {
@@ -161,8 +163,6 @@ extern struct pci_pbm_info *pci_pbm_root;
 extern int pci_num_pbms;
 
 /* PCI bus scanning and fixup support. */
-extern void pci_iommu_table_init(struct iommu *iommu, int tsbsize,
-                                 u32 dma_offset, u32 dma_addr_mask);
 extern void pci_get_pbm_props(struct pci_pbm_info *pbm);
 extern struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm);
 extern void pci_determine_mem_io_space(struct pci_pbm_info *pbm);
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/prom.c b/arch/sparc64/kernel/prom.c
index 68964ddcde1e..ed03a18d3b36 100644
--- a/arch/sparc64/kernel/prom.c
+++ b/arch/sparc64/kernel/prom.c
@@ -19,8 +19,8 @@
 #include <linux/types.h>
 #include <linux/string.h>
 #include <linux/mm.h>
-#include <linux/bootmem.h>
 #include <linux/module.h>
+#include <linux/lmb.h>
 
 #include <asm/prom.h>
 #include <asm/of_device.h>
@@ -122,16 +122,20 @@ int of_find_in_proplist(const char *list, const char *match, int len)
 }
 EXPORT_SYMBOL(of_find_in_proplist);
 
-static unsigned int prom_early_allocated;
+static unsigned int prom_early_allocated __initdata;
 
 static void * __init prom_early_alloc(unsigned long size)
 {
+        unsigned long paddr = lmb_alloc(size, SMP_CACHE_BYTES);
         void *ret;
 
-        ret = __alloc_bootmem(size, SMP_CACHE_BYTES, 0UL);
-        if (ret != NULL)
-                memset(ret, 0, size);
+        if (!paddr) {
+                prom_printf("prom_early_alloc(%lu) failed\n");
+                prom_halt();
+        }
 
+        ret = __va(paddr);
+        memset(ret, 0, size);
         prom_early_allocated += size;
 
         return ret;
diff --git a/arch/sparc64/kernel/rtrap.S b/arch/sparc64/kernel/rtrap.S
index 079d18a11d24..ecf6753b204a 100644
--- a/arch/sparc64/kernel/rtrap.S
+++ b/arch/sparc64/kernel/rtrap.S
@@ -18,12 +18,6 @@
 #define         RTRAP_PSTATE_IRQOFF     (PSTATE_RMO|PSTATE_PEF|PSTATE_PRIV)
 #define         RTRAP_PSTATE_AG_IRQOFF  (PSTATE_RMO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG)
 
-                /* Register %l6 keeps track of whether we are returning
-                 * from a system call or not.  It is cleared if we call
-                 * do_notify_resume, and it must not be otherwise modified
-                 * until we fully commit to returning to userspace.
-                 */
-
                 .text
                 .align                  32
 __handle_softirq:
@@ -56,14 +50,12 @@ __handle_user_windows:
                 be,pt                   %xcc, __handle_user_windows_continue
                  nop
                 mov                     %l5, %o1
-                mov                     %l6, %o2
                 add                     %sp, PTREGS_OFF, %o0
-                mov                     %l0, %o3
+                mov                     %l0, %o2
 
                 call                    do_notify_resume
                  wrpr                   %g0, RTRAP_PSTATE, %pstate
                 wrpr                    %g0, RTRAP_PSTATE_IRQOFF, %pstate
-                clr                     %l6
                 /* Signal delivery can modify pt_regs tstate, so we must
                  * reload it.
                  */
@@ -99,14 +91,12 @@ __handle_perfctrs:
                 be,pt                   %xcc, __handle_perfctrs_continue
                  sethi                  %hi(TSTATE_PEF), %o0
                 mov                     %l5, %o1
-                mov                     %l6, %o2
                 add                     %sp, PTREGS_OFF, %o0
-                mov                     %l0, %o3
+                mov                     %l0, %o2
                 call                    do_notify_resume
 
                  wrpr                   %g0, RTRAP_PSTATE, %pstate
                 wrpr                    %g0, RTRAP_PSTATE_IRQOFF, %pstate
-                clr                     %l6
                 /* Signal delivery can modify pt_regs tstate, so we must
                  * reload it.
                  */
@@ -127,13 +117,11 @@ __handle_userfpu:
 
 __handle_signal:
                 mov                     %l5, %o1
-                mov                     %l6, %o2
                 add                     %sp, PTREGS_OFF, %o0
-                mov                     %l0, %o3
+                mov                     %l0, %o2
                 call                    do_notify_resume
                  wrpr                   %g0, RTRAP_PSTATE, %pstate
                 wrpr                    %g0, RTRAP_PSTATE_IRQOFF, %pstate
-                clr                     %l6
 
                 /* Signal delivery can modify pt_regs tstate, so we must
                  * reload it.
@@ -145,9 +133,8 @@ __handle_signal:
                  andn                   %l1, %l4, %l1
 
                 .align                  64
-                .globl                  rtrap_irq, rtrap_clr_l6, rtrap, irqsz_patchme, rtrap_xcall
+                .globl                  rtrap_irq, rtrap, irqsz_patchme, rtrap_xcall
 rtrap_irq:
-rtrap_clr_l6:   clr                     %l6
 rtrap:
 #ifndef CONFIG_SMP
                 sethi                   %hi(per_cpu____cpu_data), %l0
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/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c
index 6acb4c51cfe4..da5e6ee0c661 100644
--- a/arch/sparc64/kernel/setup.c
+++ b/arch/sparc64/kernel/setup.c
@@ -82,7 +82,7 @@ unsigned long cmdline_memory_size = 0;
 static struct console prom_early_console = {
         .name =         "earlyprom",
         .write =        prom_console_write,
-        .flags =        CON_PRINTBUFFER | CON_BOOT,
+        .flags =        CON_PRINTBUFFER | CON_BOOT | CON_ANYTIME,
         .index =        -1,
 };
 
@@ -281,6 +281,7 @@ void __init setup_arch(char **cmdline_p)
         /* Initialize PROM console and command line. */
         *cmdline_p = prom_getbootargs();
         strcpy(boot_command_line, *cmdline_p);
+        parse_early_param();
 
         boot_flags_init(*cmdline_p);
         register_console(&prom_early_console);
diff --git a/arch/sparc64/kernel/signal.c b/arch/sparc64/kernel/signal.c
index 1c47009eb5ec..77a3e8592cbc 100644
--- a/arch/sparc64/kernel/signal.c
+++ b/arch/sparc64/kernel/signal.c
@@ -510,15 +510,20 @@ static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
  */
-static void do_signal(struct pt_regs *regs, unsigned long orig_i0, int restart_syscall)
+static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
 {
-        siginfo_t info;
         struct signal_deliver_cookie cookie;
         struct k_sigaction ka;
-        int signr;
         sigset_t *oldset;
+        siginfo_t info;
+        int signr, tt;
         
-        cookie.restart_syscall = restart_syscall;
+        tt = regs->magic & 0x1ff;
+        if (tt == 0x110 || tt == 0x111 || tt == 0x16d) {
+                regs->magic &= ~0x1ff;
+                cookie.restart_syscall = 1;
+        } else
+                cookie.restart_syscall = 0;
         cookie.orig_i0 = orig_i0;
 
         if (test_thread_flag(TIF_RESTORE_SIGMASK))
@@ -529,9 +534,8 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0, int restart_s
 #ifdef CONFIG_SPARC32_COMPAT
         if (test_thread_flag(TIF_32BIT)) {
                 extern void do_signal32(sigset_t *, struct pt_regs *,
-                                        unsigned long, int);
-                do_signal32(oldset, regs, orig_i0,
-                            cookie.restart_syscall);
+                                        struct signal_deliver_cookie *);
+                do_signal32(oldset, regs, &cookie);
                 return;
         }
 #endif  
@@ -539,7 +543,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0, int restart_s
         signr = get_signal_to_deliver(&info, &ka, regs, &cookie);
         if (signr > 0) {
                 if (cookie.restart_syscall)
-                        syscall_restart(orig_i0, regs, &ka.sa);
+                        syscall_restart(cookie.orig_i0, regs, &ka.sa);
                 handle_signal(signr, &ka, &info, oldset, regs);
 
                 /* a signal was successfully delivered; the saved
@@ -576,11 +580,10 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0, int restart_s
         }
 }
 
-void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, int restart_syscall,
-                      unsigned long thread_info_flags)
+void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, unsigned long thread_info_flags)
 {
         if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
-                do_signal(regs, orig_i0, restart_syscall);
+                do_signal(regs, orig_i0);
 }
 
 void ptrace_signal_deliver(struct pt_regs *regs, void *cookie)
diff --git a/arch/sparc64/kernel/signal32.c b/arch/sparc64/kernel/signal32.c
index 74e0512f135c..43cdec64d9c9 100644
--- a/arch/sparc64/kernel/signal32.c
+++ b/arch/sparc64/kernel/signal32.c
@@ -982,20 +982,16 @@ static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs
  * mistake.
  */
 void do_signal32(sigset_t *oldset, struct pt_regs * regs,
-                 unsigned long orig_i0, int restart_syscall)
+                 struct signal_deliver_cookie *cookie)
 {
-        siginfo_t info;
-        struct signal_deliver_cookie cookie;
         struct k_sigaction ka;
+        siginfo_t info;
         int signr;
         
-        cookie.restart_syscall = restart_syscall;
-        cookie.orig_i0 = orig_i0;
-
-        signr = get_signal_to_deliver(&info, &ka, regs, &cookie);
+        signr = get_signal_to_deliver(&info, &ka, regs, cookie);
         if (signr > 0) {
-                if (cookie.restart_syscall)
-                        syscall_restart32(orig_i0, regs, &ka.sa);
+                if (cookie->restart_syscall)
+                        syscall_restart32(cookie->orig_i0, regs, &ka.sa);
                 handle_signal32(signr, &ka, &info, oldset, regs);
 
                 /* a signal was successfully delivered; the saved
@@ -1007,16 +1003,16 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
                         clear_thread_flag(TIF_RESTORE_SIGMASK);
                 return;
         }
-        if (cookie.restart_syscall &&
+        if (cookie->restart_syscall &&
             (regs->u_regs[UREG_I0] == ERESTARTNOHAND ||
              regs->u_regs[UREG_I0] == ERESTARTSYS ||
              regs->u_regs[UREG_I0] == ERESTARTNOINTR)) {
                 /* replay the system call when we are done */
-                regs->u_regs[UREG_I0] = cookie.orig_i0;
+                regs->u_regs[UREG_I0] = cookie->orig_i0;
                 regs->tpc -= 4;
                 regs->tnpc -= 4;
         }
-        if (cookie.restart_syscall &&
+        if (cookie->restart_syscall &&
             regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
                 regs->u_regs[UREG_G1] = __NR_restart_syscall;
                 regs->tpc -= 4;
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 59f020d69d4c..524b88920947 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -20,7 +20,7 @@
 #include <linux/cache.h>
 #include <linux/jiffies.h>
 #include <linux/profile.h>
-#include <linux/bootmem.h>
+#include <linux/lmb.h>
 
 #include <asm/head.h>
 #include <asm/ptrace.h>
@@ -1431,7 +1431,7 @@ EXPORT_SYMBOL(__per_cpu_shift);
 
 void __init real_setup_per_cpu_areas(void)
 {
-        unsigned long goal, size, i;
+        unsigned long paddr, goal, size, i;
         char *ptr;
 
         /* Copy section for each CPU (we discard the original) */
@@ -1441,8 +1441,13 @@ void __init real_setup_per_cpu_areas(void)
         for (size = PAGE_SIZE; size < goal; size <<= 1UL)
                 __per_cpu_shift++;
 
-        ptr = alloc_bootmem_pages(size * NR_CPUS);
+        paddr = lmb_alloc(size * NR_CPUS, PAGE_SIZE);
+        if (!paddr) {
+                prom_printf("Cannot allocate per-cpu memory.\n");
+                prom_halt();
+        }
 
+        ptr = __va(paddr);
         __per_cpu_base = ptr - __per_cpu_start;
 
         for (i = 0; i < NR_CPUS; i++, ptr += size)
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index 38736460b8db..66336590e830 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -68,8 +68,6 @@ extern void *__memscan_zero(void *, size_t);
 extern void *__memscan_generic(void *, int, size_t);
 extern int __memcmp(const void *, const void *, __kernel_size_t);
 extern __kernel_size_t strlen(const char *);
-extern void linux_sparc_syscall(void);
-extern void rtrap(void);
 extern void show_regs(struct pt_regs *);
 extern void syscall_trace(struct pt_regs *, int);
 extern void sys_sigsuspend(void);
diff --git a/arch/sparc64/kernel/stacktrace.c b/arch/sparc64/kernel/stacktrace.c
index 84d39e873e88..01b52f561af4 100644
--- a/arch/sparc64/kernel/stacktrace.c
+++ b/arch/sparc64/kernel/stacktrace.c
@@ -20,6 +20,8 @@ void save_stack_trace(struct stack_trace *trace)
         thread_base = (unsigned long) tp;
         do {
                 struct reg_window *rw;
+                struct pt_regs *regs;
+                unsigned long pc;
 
                 /* Bogus frame pointer? */
                 if (fp < (thread_base + sizeof(struct thread_info)) ||
@@ -27,11 +29,19 @@ void save_stack_trace(struct stack_trace *trace)
                         break;
 
                 rw = (struct reg_window *) fp;
+                regs = (struct pt_regs *) (rw + 1);
+
+                if ((regs->magic & ~0x1ff) == PT_REGS_MAGIC) {
+                        pc = regs->tpc;
+                        fp = regs->u_regs[UREG_I6] + STACK_BIAS;
+                } else {
+                        pc = rw->ins[7];
+                        fp = rw->ins[6] + STACK_BIAS;
+                }
+
                 if (trace->skip > 0)
                         trace->skip--;
                 else
-                        trace->entries[trace->nr_entries++] = rw->ins[7];
-
-                fp = rw->ins[6] + STACK_BIAS;
+                        trace->entries[trace->nr_entries++] = pc;
         } while (trace->nr_entries < trace->max_entries);
 }
diff --git a/arch/sparc64/kernel/sun4v_tlb_miss.S b/arch/sparc64/kernel/sun4v_tlb_miss.S
index fd9430562e0b..e1fbf8c75787 100644
--- a/arch/sparc64/kernel/sun4v_tlb_miss.S
+++ b/arch/sparc64/kernel/sun4v_tlb_miss.S
@@ -262,7 +262,7 @@ sun4v_iacc:
         mov     %l5, %o2
         call    sun4v_insn_access_exception
          add    %sp, PTREGS_OFF, %o0
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
         /* Instruction Access Exception, tl1. */
 sun4v_iacc_tl1:
@@ -278,7 +278,7 @@ sun4v_iacc_tl1:
         mov     %l5, %o2
         call    sun4v_insn_access_exception_tl1
          add    %sp, PTREGS_OFF, %o0
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
         /* Data Access Exception, tl0. */
 sun4v_dacc:
@@ -294,7 +294,7 @@ sun4v_dacc:
         mov     %l5, %o2
         call    sun4v_data_access_exception
          add    %sp, PTREGS_OFF, %o0
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
         /* Data Access Exception, tl1. */
 sun4v_dacc_tl1:
@@ -310,7 +310,7 @@ sun4v_dacc_tl1:
         mov     %l5, %o2
         call    sun4v_data_access_exception_tl1
          add    %sp, PTREGS_OFF, %o0
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
         /* Memory Address Unaligned.  */
 sun4v_mna:
@@ -344,7 +344,7 @@ sun4v_mna:
         mov     %l5, %o2
         call    sun4v_do_mna
          add    %sp, PTREGS_OFF, %o0
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
         /* Privileged Action.  */
 sun4v_privact:
@@ -352,7 +352,7 @@ sun4v_privact:
          rd     %pc, %g7
         call    do_privact
          add    %sp, PTREGS_OFF, %o0
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
         /* Unaligned ldd float, tl0. */
 sun4v_lddfmna:
@@ -368,7 +368,7 @@ sun4v_lddfmna:
         mov     %l5, %o2
         call    handle_lddfmna
          add    %sp, PTREGS_OFF, %o0
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
         /* Unaligned std float, tl0. */
 sun4v_stdfmna:
@@ -384,7 +384,7 @@ sun4v_stdfmna:
         mov     %l5, %o2
         call    handle_stdfmna
          add    %sp, PTREGS_OFF, %o0
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
 #define BRANCH_ALWAYS   0x10680000
 #define NOP             0x01000000
diff --git a/arch/sparc64/kernel/sysfs.c b/arch/sparc64/kernel/sysfs.c
index 52816c7be0b9..e885034a6b73 100644
--- a/arch/sparc64/kernel/sysfs.c
+++ b/arch/sparc64/kernel/sysfs.c
@@ -273,10 +273,22 @@ static void __init check_mmu_stats(void)
                 mmu_stats_supported = 1;
 }
 
+static void register_nodes(void)
+{
+#ifdef CONFIG_NUMA
+        int i;
+
+        for (i = 0; i < MAX_NUMNODES; i++)
+                register_one_node(i);
+#endif
+}
+
 static int __init topology_init(void)
 {
         int cpu;
 
+        register_nodes();
+
         check_mmu_stats();
 
         register_cpu_notifier(&sysfs_cpu_nb);
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index 96da847023f3..d9b8d46707d1 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -2091,9 +2091,8 @@ static void user_instruction_dump(unsigned int __user *pc)
 
 void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 {
-        unsigned long pc, fp, thread_base, ksp;
+        unsigned long fp, thread_base, ksp;
         struct thread_info *tp;
-        struct reg_window *rw;
         int count = 0;
 
         ksp = (unsigned long) _ksp;
@@ -2117,15 +2116,27 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
         printk("\n");
 #endif
         do {
+                struct reg_window *rw;
+                struct pt_regs *regs;
+                unsigned long pc;
+
                 /* Bogus frame pointer? */
                 if (fp < (thread_base + sizeof(struct thread_info)) ||
                     fp >= (thread_base + THREAD_SIZE))
                         break;
                 rw = (struct reg_window *)fp;
-                pc = rw->ins[7];
+                regs = (struct pt_regs *) (rw + 1);
+
+                if ((regs->magic & ~0x1ff) == PT_REGS_MAGIC) {
+                        pc = regs->tpc;
+                        fp = regs->u_regs[UREG_I6] + STACK_BIAS;
+                } else {
+                        pc = rw->ins[7];
+                        fp = rw->ins[6] + STACK_BIAS;
+                }
+
                 printk(" [%016lx] ", pc);
                 print_symbol("%s\n", pc);
-                fp = rw->ins[6] + STACK_BIAS;
         } while (++count < 16);
 #ifndef CONFIG_KALLSYMS
         printk("\n");
diff --git a/arch/sparc64/kernel/tsb.S b/arch/sparc64/kernel/tsb.S
index 10adb2fb8ffe..c499214b501d 100644
--- a/arch/sparc64/kernel/tsb.S
+++ b/arch/sparc64/kernel/tsb.S
@@ -275,7 +275,7 @@ sparc64_realfault_common:
         stx     %l5, [%g6 + TI_FAULT_ADDR]      ! Save fault address
         call    do_sparc64_fault                ! Call fault handler
          add    %sp, PTREGS_OFF, %o0            ! Compute pt_regs arg
-        ba,pt   %xcc, rtrap_clr_l6              ! Restore cpu state
+        ba,pt   %xcc, rtrap                     ! Restore cpu state
          nop                                    ! Delay slot (fill me)
 
 winfix_trampoline:
diff --git a/arch/sparc64/kernel/winfixup.S b/arch/sparc64/kernel/winfixup.S
index c4aa110a10e5..a6b0863c27df 100644
--- a/arch/sparc64/kernel/winfixup.S
+++ b/arch/sparc64/kernel/winfixup.S
@@ -32,7 +32,7 @@ fill_fixup:
          rd     %pc, %g7
         call    do_sparc64_fault
          add    %sp, PTREGS_OFF, %o0
-        ba,pt   %xcc, rtrap_clr_l6
+        ba,pt   %xcc, rtrap
          nop
 
         /* Be very careful about usage of the trap globals here.
@@ -100,7 +100,7 @@ spill_fixup_dax:
          rd     %pc, %g7
         call    do_sparc64_fault
          add    %sp, PTREGS_OFF, %o0
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
 winfix_mna:
         andn    %g3, 0x7f, %g3
@@ -122,12 +122,12 @@ fill_fixup_mna:
         mov     %l4, %o2
         call    sun4v_do_mna
          mov    %l5, %o1
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 1:      mov     %l4, %o1
         mov     %l5, %o2
         call    mem_address_unaligned
          nop
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
 winfix_dax:
         andn    %g3, 0x7f, %g3
@@ -150,7 +150,7 @@ fill_fixup_dax:
          add    %sp, PTREGS_OFF, %o0
         call    sun4v_data_access_exception
          nop
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 1:      call    spitfire_data_access_exception
          nop
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap