49 files changed, 1160 insertions, 484 deletions

diff --git a/Makefile b/Makefile
index 3dbc826bb8e6..d35c5246fce5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 25
-EXTRAVERSION =
+EXTRAVERSION = -numa
 NAME = Funky Weasel is Jiggy wit it
 
 # *DOCUMENTATION*
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 135644f8add7..484c83d23eef 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -1409,7 +1409,6 @@ syscall_is_too_hard:
 
         st      %o0, [%sp + STACKFRAME_SZ + PT_I0]
 
-        .globl  ret_sys_call
 ret_sys_call:
         ld      [%curptr + TI_FLAGS], %l6
         cmp     %o0, -ERESTART_RESTARTBLOCK
diff --git a/arch/sparc/kernel/signal.c b/arch/sparc/kernel/signal.c
index 1f730619a24a..3e849e8e3480 100644
--- a/arch/sparc/kernel/signal.c
+++ b/arch/sparc/kernel/signal.c
@@ -105,11 +105,6 @@ static int _sigpause_common(old_sigset_t set)
         return -ERESTARTNOHAND;
 }
 
-asmlinkage int sys_sigpause(unsigned int set)
-{
-        return _sigpause_common(set);
-}
-
 asmlinkage int sys_sigsuspend(old_sigset_t set)
 {
         return _sigpause_common(set);
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index df3eacb5ca15..8acc5cc38621 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -250,6 +250,26 @@ endchoice
 
 endmenu
 
+config NUMA
+        bool "NUMA support"
+
+config NODES_SHIFT
+        int
+        default "4"
+        depends on NEED_MULTIPLE_NODES
+
+# Some NUMA nodes have memory ranges that span
+# other nodes.  Even though a pfn is valid and
+# between a node's start and end pfns, it may not
+# reside on that node.  See memmap_init_zone()
+# for details.
+config NODES_SPAN_OTHER_NODES
+        def_bool y
+        depends on NEED_MULTIPLE_NODES
+
+config ARCH_POPULATES_NODE_MAP
+        def_bool y
+
 config ARCH_SELECT_MEMORY_MODEL
         def_bool y
 
diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig
index e1835868ad36..92f79680f70d 100644
--- a/arch/sparc64/defconfig
+++ b/arch/sparc64/defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.25
-# Sun Apr 20 01:33:21 2008
+# Linux kernel version: 2.6.25-numa
+# Wed Apr 23 04:49:08 2008
 #
 CONFIG_SPARC=y
 CONFIG_SPARC64=y
@@ -152,6 +152,8 @@ CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_HUGETLB_PAGE_SIZE_4MB=y
 # CONFIG_HUGETLB_PAGE_SIZE_512K is not set
 # CONFIG_HUGETLB_PAGE_SIZE_64K is not set
+# CONFIG_NUMA is not set
+CONFIG_ARCH_POPULATES_NODE_MAP=y
 CONFIG_ARCH_SELECT_MEMORY_MODEL=y
 CONFIG_ARCH_SPARSEMEM_ENABLE=y
 CONFIG_ARCH_SPARSEMEM_DEFAULT=y
@@ -787,7 +789,6 @@ CONFIG_I2C_ALGOBIT=y
 # CONFIG_SENSORS_PCF8574 is not set
 # CONFIG_PCF8575 is not set
 # CONFIG_SENSORS_PCF8591 is not set
-# CONFIG_TPS65010 is not set
 # CONFIG_SENSORS_MAX6875 is not set
 # CONFIG_SENSORS_TSL2550 is not set
 # CONFIG_I2C_DEBUG_CORE is not set
@@ -869,6 +870,7 @@ CONFIG_SSB_POSSIBLE=y
 # Multifunction device drivers
 #
 # CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
 
 #
 # Multimedia devices
@@ -1219,10 +1221,6 @@ CONFIG_USB_STORAGE=m
 # CONFIG_NEW_LEDS is not set
 # CONFIG_INFINIBAND is not set
 # CONFIG_RTC_CLASS is not set
-
-#
-# Userspace I/O
-#
 # CONFIG_UIO is not set
 
 #
@@ -1399,6 +1397,7 @@ CONFIG_SCHEDSTATS=y
 CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
 # CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_WRITECOUNT is not set
 # CONFIG_DEBUG_LIST is not set
 # CONFIG_DEBUG_SG is not set
 # CONFIG_BOOT_PRINTK_DELAY is not set
@@ -1425,53 +1424,82 @@ CONFIG_ASYNC_CORE=m
 CONFIG_ASYNC_MEMCPY=m
 CONFIG_ASYNC_XOR=m
 CONFIG_CRYPTO=y
+
+#
+# Crypto core or helper
+#
 CONFIG_CRYPTO_ALGAPI=y
 CONFIG_CRYPTO_AEAD=y
 CONFIG_CRYPTO_BLKCIPHER=y
-# CONFIG_CRYPTO_SEQIV is not set
 CONFIG_CRYPTO_HASH=y
 CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_GF128MUL=m
+CONFIG_CRYPTO_NULL=m
+# CONFIG_CRYPTO_CRYPTD is not set
+CONFIG_CRYPTO_AUTHENC=y
+CONFIG_CRYPTO_TEST=m
+
+#
+# Authenticated Encryption with Associated Data
+#
+# CONFIG_CRYPTO_CCM is not set
+# CONFIG_CRYPTO_GCM is not set
+# CONFIG_CRYPTO_SEQIV is not set
+
+#
+# Block modes
+#
+CONFIG_CRYPTO_CBC=y
+# CONFIG_CRYPTO_CTR is not set
+# CONFIG_CRYPTO_CTS is not set
+CONFIG_CRYPTO_ECB=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_XTS=m
+
+#
+# Hash modes
+#
 CONFIG_CRYPTO_HMAC=y
 CONFIG_CRYPTO_XCBC=y
-CONFIG_CRYPTO_NULL=m
+
+#
+# Digest
+#
+CONFIG_CRYPTO_CRC32C=m
 CONFIG_CRYPTO_MD4=y
 CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
 CONFIG_CRYPTO_SHA1=y
 CONFIG_CRYPTO_SHA256=m
 CONFIG_CRYPTO_SHA512=m
-CONFIG_CRYPTO_WP512=m
 CONFIG_CRYPTO_TGR192=m
-CONFIG_CRYPTO_GF128MUL=m
-CONFIG_CRYPTO_ECB=m
-CONFIG_CRYPTO_CBC=y
-CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_LRW=m
-CONFIG_CRYPTO_XTS=m
-# CONFIG_CRYPTO_CTR is not set
-# CONFIG_CRYPTO_GCM is not set
-# CONFIG_CRYPTO_CCM is not set
-# CONFIG_CRYPTO_CRYPTD is not set
-CONFIG_CRYPTO_DES=y
-CONFIG_CRYPTO_FCRYPT=m
-CONFIG_CRYPTO_BLOWFISH=m
-CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_TWOFISH_COMMON=m
-CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_WP512=m
+
+#
+# Ciphers
+#
 CONFIG_CRYPTO_AES=m
+CONFIG_CRYPTO_ANUBIS=m
+CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_CAMELLIA=m
 CONFIG_CRYPTO_CAST5=m
 CONFIG_CRYPTO_CAST6=m
-CONFIG_CRYPTO_TEA=m
-CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_DES=y
+CONFIG_CRYPTO_FCRYPT=m
 CONFIG_CRYPTO_KHAZAD=m
-CONFIG_CRYPTO_ANUBIS=m
-CONFIG_CRYPTO_SEED=m
 # CONFIG_CRYPTO_SALSA20 is not set
+CONFIG_CRYPTO_SEED=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_TEA=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_TWOFISH_COMMON=m
+
+#
+# Compression
+#
 CONFIG_CRYPTO_DEFLATE=y
-CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_CRC32C=m
-CONFIG_CRYPTO_CAMELLIA=m
-CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_AUTHENC=y
 # CONFIG_CRYPTO_LZO is not set
 CONFIG_CRYPTO_HW=y
 # CONFIG_CRYPTO_DEV_HIFN_795X is not set
@@ -1492,3 +1520,4 @@ CONFIG_PLIST=y
 CONFIG_HAS_IOMEM=y
 CONFIG_HAS_IOPORT=y
 CONFIG_HAS_DMA=y
+CONFIG_HAVE_LMB=y
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
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index f37078d96407..177d8aaeec42 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -24,6 +24,8 @@
 #include <linux/cache.h>
 #include <linux/sort.h>
 #include <linux/percpu.h>
+#include <linux/lmb.h>
+#include <linux/mmzone.h>
 
 #include <asm/head.h>
 #include <asm/system.h>
@@ -72,9 +74,7 @@ extern struct tsb swapper_4m_tsb[KERNEL_TSB4M_NENTRIES];
 #define MAX_BANKS       32
 
 static struct linux_prom64_registers pavail[MAX_BANKS] __initdata;
-static struct linux_prom64_registers pavail_rescan[MAX_BANKS] __initdata;
 static int pavail_ents __initdata;
-static int pavail_rescan_ents __initdata;
 
 static int cmp_p64(const void *a, const void *b)
 {
@@ -715,285 +715,684 @@ out:
                 smp_new_mmu_context_version();
 }
 
-/* Find a free area for the bootmem map, avoiding the kernel image
- * and the initial ramdisk.
- */
-static unsigned long __init choose_bootmap_pfn(unsigned long start_pfn,
-                                               unsigned long end_pfn)
+static int numa_enabled = 1;
+static int numa_debug;
+
+static int __init early_numa(char *p)
 {
-        unsigned long avoid_start, avoid_end, bootmap_size;
-        int i;
+        if (!p)
+                return 0;
+
+        if (strstr(p, "off"))
+                numa_enabled = 0;
+
+        if (strstr(p, "debug"))
+                numa_debug = 1;
+
+        return 0;
+}
+early_param("numa", early_numa);
 
-        bootmap_size = bootmem_bootmap_pages(end_pfn - start_pfn);
-        bootmap_size <<= PAGE_SHIFT;
+#define numadbg(f, a...) \
+do {    if (numa_debug) \
+                printk(KERN_INFO f, ## a); \
+} while (0)
 
-        avoid_start = avoid_end = 0;
+static void __init find_ramdisk(unsigned long phys_base)
+{
 #ifdef CONFIG_BLK_DEV_INITRD
-        avoid_start = initrd_start;
-        avoid_end = PAGE_ALIGN(initrd_end);
+        if (sparc_ramdisk_image || sparc_ramdisk_image64) {
+                unsigned long ramdisk_image;
+
+                /* Older versions of the bootloader only supported a
+                 * 32-bit physical address for the ramdisk image
+                 * location, stored at sparc_ramdisk_image.  Newer
+                 * SILO versions set sparc_ramdisk_image to zero and
+                 * provide a full 64-bit physical address at
+                 * sparc_ramdisk_image64.
+                 */
+                ramdisk_image = sparc_ramdisk_image;
+                if (!ramdisk_image)
+                        ramdisk_image = sparc_ramdisk_image64;
+
+                /* Another bootloader quirk.  The bootloader normalizes
+                 * the physical address to KERNBASE, so we have to
+                 * factor that back out and add in the lowest valid
+                 * physical page address to get the true physical address.
+                 */
+                ramdisk_image -= KERNBASE;
+                ramdisk_image += phys_base;
+
+                numadbg("Found ramdisk at physical address 0x%lx, size %u\n",
+                        ramdisk_image, sparc_ramdisk_size);
+
+                initrd_start = ramdisk_image;
+                initrd_end = ramdisk_image + sparc_ramdisk_size;
+
+                lmb_reserve(initrd_start, initrd_end);
+        }
 #endif
+}
 
-        for (i = 0; i < pavail_ents; i++) {
-                unsigned long start, end;
+struct node_mem_mask {
+        unsigned long mask;
+        unsigned long val;
+        unsigned long bootmem_paddr;
+};
+static struct node_mem_mask node_masks[MAX_NUMNODES];
+static int num_node_masks;
 
-                start = pavail[i].phys_addr;
-                end = start + pavail[i].reg_size;
+int numa_cpu_lookup_table[NR_CPUS];
+cpumask_t numa_cpumask_lookup_table[MAX_NUMNODES];
 
-                while (start < end) {
-                        if (start >= kern_base &&
-                            start < PAGE_ALIGN(kern_base + kern_size)) {
-                                start = PAGE_ALIGN(kern_base + kern_size);
-                                continue;
-                        }
-                        if (start >= avoid_start && start < avoid_end) {
-                                start = avoid_end;
-                                continue;
-                        }
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+static bootmem_data_t plat_node_bdata[MAX_NUMNODES];
 
-                        if ((end - start) < bootmap_size)
-                                break;
+struct mdesc_mblock {
+        u64     base;
+        u64     size;
+        u64     offset; /* RA-to-PA */
+};
+static struct mdesc_mblock *mblocks;
+static int num_mblocks;
 
-                        if (start < kern_base &&
-                            (start + bootmap_size) > kern_base) {
-                                start = PAGE_ALIGN(kern_base + kern_size);
-                                continue;
-                        }
+static unsigned long ra_to_pa(unsigned long addr)
+{
+        int i;
 
-                        if (start < avoid_start &&
-                            (start + bootmap_size) > avoid_start) {
-                                start = avoid_end;
-                                continue;
-                        }
+        for (i = 0; i < num_mblocks; i++) {
+                struct mdesc_mblock *m = &mblocks[i];
 
-                        /* OK, it doesn't overlap anything, use it.  */
-                        return start >> PAGE_SHIFT;
+                if (addr >= m->base &&
+                    addr < (m->base + m->size)) {
+                        addr += m->offset;
+                        break;
                 }
         }
-
-        prom_printf("Cannot find free area for bootmap, aborting.\n");
-        prom_halt();
+        return addr;
 }
 
-static void __init trim_pavail(unsigned long *cur_size_p,
-                               unsigned long *end_of_phys_p)
+static int find_node(unsigned long addr)
 {
-        unsigned long to_trim = *cur_size_p - cmdline_memory_size;
-        unsigned long avoid_start, avoid_end;
         int i;
 
-        to_trim = PAGE_ALIGN(to_trim);
+        addr = ra_to_pa(addr);
+        for (i = 0; i < num_node_masks; i++) {
+                struct node_mem_mask *p = &node_masks[i];
 
-        avoid_start = avoid_end = 0;
-#ifdef CONFIG_BLK_DEV_INITRD
-        avoid_start = initrd_start;
-        avoid_end = PAGE_ALIGN(initrd_end);
+                if ((addr & p->mask) == p->val)
+                        return i;
+        }
+        return -1;
+}
+
+static unsigned long nid_range(unsigned long start, unsigned long end,
+                               int *nid)
+{
+        *nid = find_node(start);
+        start += PAGE_SIZE;
+        while (start < end) {
+                int n = find_node(start);
+
+                if (n != *nid)
+                        break;
+                start += PAGE_SIZE;
+        }
+
+        return start;
+}
+#else
+static unsigned long nid_range(unsigned long start, unsigned long end,
+                               int *nid)
+{
+        *nid = 0;
+        return end;
+}
 #endif
 
-        /* Trim some pavail[] entries in order to satisfy the
-         * requested "mem=xxx" kernel command line specification.
-         *
-         * We must not trim off the kernel image area nor the
-         * initial ramdisk range (if any).  Also, we must not trim
-         * any pavail[] entry down to zero in order to preserve
-         * the invariant that all pavail[] entries have a non-zero
-         * size which is assumed by all of the code in here.
-         */
-        for (i = 0; i < pavail_ents; i++) {
-                unsigned long start, end, kern_end;
-                unsigned long trim_low, trim_high, n;
+/* This must be invoked after performing all of the necessary
+ * add_active_range() calls for 'nid'.  We need to be able to get
+ * correct data from get_pfn_range_for_nid().
+ */
+static void __init allocate_node_data(int nid)
+{
+        unsigned long paddr, num_pages, start_pfn, end_pfn;
+        struct pglist_data *p;
+
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+        paddr = lmb_alloc_nid(sizeof(struct pglist_data),
+                              SMP_CACHE_BYTES, nid, nid_range);
+        if (!paddr) {
+                prom_printf("Cannot allocate pglist_data for nid[%d]\n", nid);
+                prom_halt();
+        }
+        NODE_DATA(nid) = __va(paddr);
+        memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
 
-                kern_end = PAGE_ALIGN(kern_base + kern_size);
+        NODE_DATA(nid)->bdata = &plat_node_bdata[nid];
+#endif
 
-                trim_low = start = pavail[i].phys_addr;
-                trim_high = end = start + pavail[i].reg_size;
+        p = NODE_DATA(nid);
 
-                if (kern_base >= start &&
-                    kern_base < end) {
-                        trim_low = kern_base;
-                        if (kern_end >= end)
-                                continue;
-                }
-                if (kern_end >= start &&
-                    kern_end < end) {
-                        trim_high = kern_end;
-                }
-                if (avoid_start &&
-                    avoid_start >= start &&
-                    avoid_start < end) {
-                        if (trim_low > avoid_start)
-                                trim_low = avoid_start;
-                        if (avoid_end >= end)
-                                continue;
-                }
-                if (avoid_end &&
-                    avoid_end >= start &&
-                    avoid_end < end) {
-                        if (trim_high < avoid_end)
-                                trim_high = avoid_end;
+        get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
+        p->node_start_pfn = start_pfn;
+        p->node_spanned_pages = end_pfn - start_pfn;
+
+        if (p->node_spanned_pages) {
+                num_pages = bootmem_bootmap_pages(p->node_spanned_pages);
+
+                paddr = lmb_alloc_nid(num_pages << PAGE_SHIFT, PAGE_SIZE, nid,
+                                      nid_range);
+                if (!paddr) {
+                        prom_printf("Cannot allocate bootmap for nid[%d]\n",
+                                  nid);
+                        prom_halt();
                 }
+                node_masks[nid].bootmem_paddr = paddr;
+        }
+}
+
+static void init_node_masks_nonnuma(void)
+{
+        int i;
+
+        numadbg("Initializing tables for non-numa.\n");
+
+        node_masks[0].mask = node_masks[0].val = 0;
+        num_node_masks = 1;
+
+        for (i = 0; i < NR_CPUS; i++)
+                numa_cpu_lookup_table[i] = 0;
+
+        numa_cpumask_lookup_table[0] = CPU_MASK_ALL;
+}
+
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+struct pglist_data *node_data[MAX_NUMNODES];
+
+EXPORT_SYMBOL(numa_cpu_lookup_table);
+EXPORT_SYMBOL(numa_cpumask_lookup_table);
+EXPORT_SYMBOL(node_data);
+
+struct mdesc_mlgroup {
+        u64     node;
+        u64     latency;
+        u64     match;
+        u64     mask;
+};
+static struct mdesc_mlgroup *mlgroups;
+static int num_mlgroups;
+
+static int scan_pio_for_cfg_handle(struct mdesc_handle *md, u64 pio,
+                                   u32 cfg_handle)
+{
+        u64 arc;
 
-                if (trim_high <= trim_low)
+        mdesc_for_each_arc(arc, md, pio, MDESC_ARC_TYPE_FWD) {
+                u64 target = mdesc_arc_target(md, arc);
+                const u64 *val;
+
+                val = mdesc_get_property(md, target,
+                                         "cfg-handle", NULL);
+                if (val && *val == cfg_handle)
+                        return 0;
+        }
+        return -ENODEV;
+}
+
+static int scan_arcs_for_cfg_handle(struct mdesc_handle *md, u64 grp,
+                                    u32 cfg_handle)
+{
+        u64 arc, candidate, best_latency = ~(u64)0;
+
+        candidate = MDESC_NODE_NULL;
+        mdesc_for_each_arc(arc, md, grp, MDESC_ARC_TYPE_FWD) {
+                u64 target = mdesc_arc_target(md, arc);
+                const char *name = mdesc_node_name(md, target);
+                const u64 *val;
+
+                if (strcmp(name, "pio-latency-group"))
                         continue;
 
-                if (trim_low == start && trim_high == end) {
-                        /* Whole chunk is available for trimming.
-                         * Trim all except one page, in order to keep
-                         * entry non-empty.
-                         */
-                        n = (end - start) - PAGE_SIZE;
-                        if (n > to_trim)
-                                n = to_trim;
-
-                        if (n) {
-                                pavail[i].phys_addr += n;
-                                pavail[i].reg_size -= n;
-                                to_trim -= n;
-                        }
-                } else {
-                        n = (trim_low - start);
-                        if (n > to_trim)
-                                n = to_trim;
-
-                        if (n) {
-                                pavail[i].phys_addr += n;
-                                pavail[i].reg_size -= n;
-                                to_trim -= n;
-                        }
-                        if (to_trim) {
-                                n = end - trim_high;
-                                if (n > to_trim)
-                                        n = to_trim;
-                                if (n) {
-                                        pavail[i].reg_size -= n;
-                                        to_trim -= n;
-                                }
-                        }
+                val = mdesc_get_property(md, target, "latency", NULL);
+                if (!val)
+                        continue;
+
+                if (*val < best_latency) {
+                        candidate = target;
+                        best_latency = *val;
                 }
+        }
+
+        if (candidate == MDESC_NODE_NULL)
+                return -ENODEV;
+
+        return scan_pio_for_cfg_handle(md, candidate, cfg_handle);
+}
+
+int of_node_to_nid(struct device_node *dp)
+{
+        const struct linux_prom64_registers *regs;
+        struct mdesc_handle *md;
+        u32 cfg_handle;
+        int count, nid;
+        u64 grp;
 
-                if (!to_trim)
+        if (!mlgroups)
+                return -1;
+
+        regs = of_get_property(dp, "reg", NULL);
+        if (!regs)
+                return -1;
+
+        cfg_handle = (regs->phys_addr >> 32UL) & 0x0fffffff;
+
+        md = mdesc_grab();
+
+        count = 0;
+        nid = -1;
+        mdesc_for_each_node_by_name(md, grp, "group") {
+                if (!scan_arcs_for_cfg_handle(md, grp, cfg_handle)) {
+                        nid = count;
                         break;
+                }
+                count++;
         }
 
-        /* Recalculate.  */
-        *cur_size_p = 0UL;
-        for (i = 0; i < pavail_ents; i++) {
-                *end_of_phys_p = pavail[i].phys_addr +
-                        pavail[i].reg_size;
-                *cur_size_p += pavail[i].reg_size;
-        }
+        mdesc_release(md);
+
+        return nid;
 }
 
-/* About pages_avail, this is the value we will use to calculate
- * the zholes_size[] argument given to free_area_init_node().  The
- * page allocator uses this to calculate nr_kernel_pages,
- * nr_all_pages and zone->present_pages.  On NUMA it is used
- * to calculate zone->min_unmapped_pages and zone->min_slab_pages.
- *
- * So this number should really be set to what the page allocator
- * actually ends up with.  This means:
- * 1) It should include bootmem map pages, we'll release those.
- * 2) It should not include the kernel image, except for the
- *    __init sections which we will also release.
- * 3) It should include the initrd image, since we'll release
- *    that too.
- */
-static unsigned long __init bootmem_init(unsigned long *pages_avail,
-                                         unsigned long phys_base)
+static void add_node_ranges(void)
 {
-        unsigned long bootmap_size, end_pfn;
-        unsigned long end_of_phys_memory = 0UL;
-        unsigned long bootmap_pfn, bytes_avail, size;
         int i;
 
-        bytes_avail = 0UL;
-        for (i = 0; i < pavail_ents; i++) {
-                end_of_phys_memory = pavail[i].phys_addr +
-                        pavail[i].reg_size;
-                bytes_avail += pavail[i].reg_size;
+        for (i = 0; i < lmb.memory.cnt; i++) {
+                unsigned long size = lmb_size_bytes(&lmb.memory, i);
+                unsigned long start, end;
+
+                start = lmb.memory.region[i].base;
+                end = start + size;
+                while (start < end) {
+                        unsigned long this_end;
+                        int nid;
+
+                        this_end = nid_range(start, end, &nid);
+
+                        numadbg("Adding active range nid[%d] "
+                                "start[%lx] end[%lx]\n",
+                                nid, start, this_end);
+
+                        add_active_range(nid,
+                                         start >> PAGE_SHIFT,
+                                         this_end >> PAGE_SHIFT);
+
+                        start = this_end;
+                }
         }
+}
 
-        /* Determine the location of the initial ramdisk before trying
-         * to honor the "mem=xxx" command line argument.  We must know
-         * where the kernel image and the ramdisk image are so that we
-         * do not trim those two areas from the physical memory map.
-         */
+static int __init grab_mlgroups(struct mdesc_handle *md)
+{
+        unsigned long paddr;
+        int count = 0;
+        u64 node;
+
+        mdesc_for_each_node_by_name(md, node, "memory-latency-group")
+                count++;
+        if (!count)
+                return -ENOENT;
+
+        paddr = lmb_alloc(count * sizeof(struct mdesc_mlgroup),
+                          SMP_CACHE_BYTES);
+        if (!paddr)
+                return -ENOMEM;
+
+        mlgroups = __va(paddr);
+        num_mlgroups = count;
+
+        count = 0;
+        mdesc_for_each_node_by_name(md, node, "memory-latency-group") {
+                struct mdesc_mlgroup *m = &mlgroups[count++];
+                const u64 *val;
+
+                m->node = node;
+
+                val = mdesc_get_property(md, node, "latency", NULL);
+                m->latency = *val;
+                val = mdesc_get_property(md, node, "address-match", NULL);
+                m->match = *val;
+                val = mdesc_get_property(md, node, "address-mask", NULL);
+                m->mask = *val;
+
+                numadbg("MLGROUP[%d]: node[%lx] latency[%lx] "
+                        "match[%lx] mask[%lx]\n",
+                        count - 1, m->node, m->latency, m->match, m->mask);
+        }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-        /* Now have to check initial ramdisk, so that bootmap does not overwrite it */
-        if (sparc_ramdisk_image || sparc_ramdisk_image64) {
-                unsigned long ramdisk_image = sparc_ramdisk_image ?
-                        sparc_ramdisk_image : sparc_ramdisk_image64;
-                ramdisk_image -= KERNBASE;
-                initrd_start = ramdisk_image + phys_base;
-                initrd_end = initrd_start + sparc_ramdisk_size;
-                if (initrd_end > end_of_phys_memory) {
-                        printk(KERN_CRIT "initrd extends beyond end of memory "
-                                         "(0x%016lx > 0x%016lx)\ndisabling initrd\n",
-                               initrd_end, end_of_phys_memory);
-                        initrd_start = 0;
-                        initrd_end = 0;
+        return 0;
+}
+
+static int __init grab_mblocks(struct mdesc_handle *md)
+{
+        unsigned long paddr;
+        int count = 0;
+        u64 node;
+
+        mdesc_for_each_node_by_name(md, node, "mblock")
+                count++;
+        if (!count)
+                return -ENOENT;
+
+        paddr = lmb_alloc(count * sizeof(struct mdesc_mblock),
+                          SMP_CACHE_BYTES);
+        if (!paddr)
+                return -ENOMEM;
+
+        mblocks = __va(paddr);
+        num_mblocks = count;
+
+        count = 0;
+        mdesc_for_each_node_by_name(md, node, "mblock") {
+                struct mdesc_mblock *m = &mblocks[count++];
+                const u64 *val;
+
+                val = mdesc_get_property(md, node, "base", NULL);
+                m->base = *val;
+                val = mdesc_get_property(md, node, "size", NULL);
+                m->size = *val;
+                val = mdesc_get_property(md, node,
+                                         "address-congruence-offset", NULL);
+                m->offset = *val;
+
+                numadbg("MBLOCK[%d]: base[%lx] size[%lx] offset[%lx]\n",
+                        count - 1, m->base, m->size, m->offset);
+        }
+
+        return 0;
+}
+
+static void __init numa_parse_mdesc_group_cpus(struct mdesc_handle *md,
+                                               u64 grp, cpumask_t *mask)
+{
+        u64 arc;
+
+        cpus_clear(*mask);
+
+        mdesc_for_each_arc(arc, md, grp, MDESC_ARC_TYPE_BACK) {
+                u64 target = mdesc_arc_target(md, arc);
+                const char *name = mdesc_node_name(md, target);
+                const u64 *id;
+
+                if (strcmp(name, "cpu"))
+                        continue;
+                id = mdesc_get_property(md, target, "id", NULL);
+                if (*id < NR_CPUS)
+                        cpu_set(*id, *mask);
+        }
+}
+
+static struct mdesc_mlgroup * __init find_mlgroup(u64 node)
+{
+        int i;
+
+        for (i = 0; i < num_mlgroups; i++) {
+                struct mdesc_mlgroup *m = &mlgroups[i];
+                if (m->node == node)
+                        return m;
+        }
+        return NULL;
+}
+
+static int __init numa_attach_mlgroup(struct mdesc_handle *md, u64 grp,
+                                      int index)
+{
+        struct mdesc_mlgroup *candidate = NULL;
+        u64 arc, best_latency = ~(u64)0;
+        struct node_mem_mask *n;
+
+        mdesc_for_each_arc(arc, md, grp, MDESC_ARC_TYPE_FWD) {
+                u64 target = mdesc_arc_target(md, arc);
+                struct mdesc_mlgroup *m = find_mlgroup(target);
+                if (!m)
+                        continue;
+                if (m->latency < best_latency) {
+                        candidate = m;
+                        best_latency = m->latency;
                 }
         }
-#endif  
+        if (!candidate)
+                return -ENOENT;
+
+        if (num_node_masks != index) {
+                printk(KERN_ERR "Inconsistent NUMA state, "
+                       "index[%d] != num_node_masks[%d]\n",
+                       index, num_node_masks);
+                return -EINVAL;
+        }
 
-        if (cmdline_memory_size &&
-            bytes_avail > cmdline_memory_size)
-                trim_pavail(&bytes_avail,
-                            &end_of_phys_memory);
+        n = &node_masks[num_node_masks++];
 
-        *pages_avail = bytes_avail >> PAGE_SHIFT;
+        n->mask = candidate->mask;
+        n->val = candidate->match;
 
-        end_pfn = end_of_phys_memory >> PAGE_SHIFT;
+        numadbg("NUMA NODE[%d]: mask[%lx] val[%lx] (latency[%lx])\n",
+                index, n->mask, n->val, candidate->latency);
 
-        /* Initialize the boot-time allocator. */
-        max_pfn = max_low_pfn = end_pfn;
-        min_low_pfn = (phys_base >> PAGE_SHIFT);
+        return 0;
+}
+
+static int __init numa_parse_mdesc_group(struct mdesc_handle *md, u64 grp,
+                                         int index)
+{
+        cpumask_t mask;
+        int cpu;
 
-        bootmap_pfn = choose_bootmap_pfn(min_low_pfn, end_pfn);
+        numa_parse_mdesc_group_cpus(md, grp, &mask);
 
-        bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap_pfn,
-                                         min_low_pfn, end_pfn);
+        for_each_cpu_mask(cpu, mask)
+                numa_cpu_lookup_table[cpu] = index;
+        numa_cpumask_lookup_table[index] = mask;
 
-        /* Now register the available physical memory with the
-         * allocator.
-         */
-        for (i = 0; i < pavail_ents; i++)
-                free_bootmem(pavail[i].phys_addr, pavail[i].reg_size);
+        if (numa_debug) {
+                printk(KERN_INFO "NUMA GROUP[%d]: cpus [ ", index);
+                for_each_cpu_mask(cpu, mask)
+                        printk("%d ", cpu);
+                printk("]\n");
+        }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-        if (initrd_start) {
-                size = initrd_end - initrd_start;
+        return numa_attach_mlgroup(md, grp, index);
+}
+
+static int __init numa_parse_mdesc(void)
+{
+        struct mdesc_handle *md = mdesc_grab();
+        int i, err, count;
+        u64 node;
+
+        node = mdesc_node_by_name(md, MDESC_NODE_NULL, "latency-groups");
+        if (node == MDESC_NODE_NULL) {
+                mdesc_release(md);
+                return -ENOENT;
+        }
+
+        err = grab_mblocks(md);
+        if (err < 0)
+                goto out;
+
+        err = grab_mlgroups(md);
+        if (err < 0)
+                goto out;
+
+        count = 0;
+        mdesc_for_each_node_by_name(md, node, "group") {
+                err = numa_parse_mdesc_group(md, node, count);
+                if (err < 0)
+                        break;
+                count++;
+        }
+
+        add_node_ranges();
+
+        for (i = 0; i < num_node_masks; i++) {
+                allocate_node_data(i);
+                node_set_online(i);
+        }
+
+        err = 0;
+out:
+        mdesc_release(md);
+        return err;
+}
+
+static int __init numa_parse_sun4u(void)
+{
+        return -1;
+}
 
-                /* Reserve the initrd image area. */
-                reserve_bootmem(initrd_start, size, BOOTMEM_DEFAULT);
+static int __init bootmem_init_numa(void)
+{
+        int err = -1;
 
-                initrd_start += PAGE_OFFSET;
-                initrd_end += PAGE_OFFSET;
+        numadbg("bootmem_init_numa()\n");
+
+        if (numa_enabled) {
+                if (tlb_type == hypervisor)
+                        err = numa_parse_mdesc();
+                else
+                        err = numa_parse_sun4u();
         }
+        return err;
+}
+
+#else
+
+static int bootmem_init_numa(void)
+{
+        return -1;
+}
+
 #endif
-        /* Reserve the kernel text/data/bss. */
-        reserve_bootmem(kern_base, kern_size, BOOTMEM_DEFAULT);
-        *pages_avail -= PAGE_ALIGN(kern_size) >> PAGE_SHIFT;
-
-        /* Add back in the initmem pages. */
-        size = ((unsigned long)(__init_end) & PAGE_MASK) -
-                PAGE_ALIGN((unsigned long)__init_begin);
-        *pages_avail += size >> PAGE_SHIFT;
-
-        /* Reserve the bootmem map.   We do not account for it
-         * in pages_avail because we will release that memory
-         * in free_all_bootmem.
-         */
-        size = bootmap_size;
-        reserve_bootmem((bootmap_pfn << PAGE_SHIFT), size, BOOTMEM_DEFAULT);
 
-        for (i = 0; i < pavail_ents; i++) {
+static void __init bootmem_init_nonnuma(void)
+{
+        unsigned long top_of_ram = lmb_end_of_DRAM();
+        unsigned long total_ram = lmb_phys_mem_size();
+        unsigned int i;
+
+        numadbg("bootmem_init_nonnuma()\n");
+
+        printk(KERN_INFO "Top of RAM: 0x%lx, Total RAM: 0x%lx\n",
+               top_of_ram, total_ram);
+        printk(KERN_INFO "Memory hole size: %ldMB\n",
+               (top_of_ram - total_ram) >> 20);
+
+        init_node_masks_nonnuma();
+
+        for (i = 0; i < lmb.memory.cnt; i++) {
+                unsigned long size = lmb_size_bytes(&lmb.memory, i);
                 unsigned long start_pfn, end_pfn;
 
-                start_pfn = pavail[i].phys_addr >> PAGE_SHIFT;
-                end_pfn = (start_pfn + (pavail[i].reg_size >> PAGE_SHIFT));
-                memory_present(0, start_pfn, end_pfn);
+                if (!size)
+                        continue;
+
+                start_pfn = lmb.memory.region[i].base >> PAGE_SHIFT;
+                end_pfn = start_pfn + lmb_size_pages(&lmb.memory, i);
+                add_active_range(0, start_pfn, end_pfn);
+        }
+
+        allocate_node_data(0);
+
+        node_set_online(0);
+}
+
+static void __init reserve_range_in_node(int nid, unsigned long start,
+                                         unsigned long end)
+{
+        numadbg("    reserve_range_in_node(nid[%d],start[%lx],end[%lx]\n",
+                nid, start, end);
+        while (start < end) {
+                unsigned long this_end;
+                int n;
+
+                this_end = nid_range(start, end, &n);
+                if (n == nid) {
+                        numadbg("      MATCH reserving range [%lx:%lx]\n",
+                                start, this_end);
+                        reserve_bootmem_node(NODE_DATA(nid), start,
+                                             (this_end - start), BOOTMEM_DEFAULT);
+                } else
+                        numadbg("      NO MATCH, advancing start to %lx\n",
+                                this_end);
+
+                start = this_end;
+        }
+}
+
+static void __init trim_reserved_in_node(int nid)
+{
+        int i;
+
+        numadbg("  trim_reserved_in_node(%d)\n", nid);
+
+        for (i = 0; i < lmb.reserved.cnt; i++) {
+                unsigned long start = lmb.reserved.region[i].base;
+                unsigned long size = lmb_size_bytes(&lmb.reserved, i);
+                unsigned long end = start + size;
+
+                reserve_range_in_node(nid, start, end);
+        }
+}
+
+static void __init bootmem_init_one_node(int nid)
+{
+        struct pglist_data *p;
+
+        numadbg("bootmem_init_one_node(%d)\n", nid);
+
+        p = NODE_DATA(nid);
+
+        if (p->node_spanned_pages) {
+                unsigned long paddr = node_masks[nid].bootmem_paddr;
+                unsigned long end_pfn;
+
+                end_pfn = p->node_start_pfn + p->node_spanned_pages;
+
+                numadbg("  init_bootmem_node(%d, %lx, %lx, %lx)\n",
+                        nid, paddr >> PAGE_SHIFT, p->node_start_pfn, end_pfn);
+
+                init_bootmem_node(p, paddr >> PAGE_SHIFT,
+                                  p->node_start_pfn, end_pfn);
+
+                numadbg("  free_bootmem_with_active_regions(%d, %lx)\n",
+                        nid, end_pfn);
+                free_bootmem_with_active_regions(nid, end_pfn);
+
+                trim_reserved_in_node(nid);
+
+                numadbg("  sparse_memory_present_with_active_regions(%d)\n",
+                        nid);
+                sparse_memory_present_with_active_regions(nid);
         }
+}
+
+static unsigned long __init bootmem_init(unsigned long phys_base)
+{
+        unsigned long end_pfn;
+        int nid;
+
+        end_pfn = lmb_end_of_DRAM() >> PAGE_SHIFT;
+        max_pfn = max_low_pfn = end_pfn;
+        min_low_pfn = (phys_base >> PAGE_SHIFT);
+
+        if (bootmem_init_numa() < 0)
+                bootmem_init_nonnuma();
+
+        /* XXX cpu notifier XXX */
+
+        for_each_online_node(nid)
+                bootmem_init_one_node(nid);
 
         sparse_init();
 
@@ -1289,7 +1688,7 @@ void __init setup_per_cpu_areas(void)
 
 void __init paging_init(void)
 {
-        unsigned long end_pfn, pages_avail, shift, phys_base;
+        unsigned long end_pfn, shift, phys_base;
         unsigned long real_end, i;
 
         /* These build time checkes make sure that the dcache_dirty_cpu()
@@ -1330,12 +1729,26 @@ void __init paging_init(void)
                 sun4v_ktsb_init();
         }
 
+        lmb_init();
+
         /* Find available physical memory... */
         read_obp_memory("available", &pavail[0], &pavail_ents);
 
         phys_base = 0xffffffffffffffffUL;
-        for (i = 0; i < pavail_ents; i++)
+        for (i = 0; i < pavail_ents; i++) {
                 phys_base = min(phys_base, pavail[i].phys_addr);
+                lmb_add(pavail[i].phys_addr, pavail[i].reg_size);
+        }
+
+        lmb_reserve(kern_base, kern_size);
+
+        find_ramdisk(phys_base);
+
+        if (cmdline_memory_size)
+                lmb_enforce_memory_limit(phys_base + cmdline_memory_size);
+
+        lmb_analyze();
+        lmb_dump_all();
 
         set_bit(0, mmu_context_bmap);
 
@@ -1371,14 +1784,10 @@ void __init paging_init(void)
         if (tlb_type == hypervisor)
                 sun4v_ktsb_register();
 
-        /* Setup bootmem... */
-        pages_avail = 0;
-        last_valid_pfn = end_pfn = bootmem_init(&pages_avail, phys_base);
-
-        max_mapnr = last_valid_pfn;
-
-        kernel_physical_mapping_init();
-
+        /* We must setup the per-cpu areas before we pull in the
+         * PROM and the MDESC.  The code there fills in cpu and
+         * other information into per-cpu data structures.
+         */
         real_setup_per_cpu_areas();
 
         prom_build_devicetree();
@@ -1386,20 +1795,22 @@ void __init paging_init(void)
         if (tlb_type == hypervisor)
                 sun4v_mdesc_init();
 
+        /* Setup bootmem... */
+        last_valid_pfn = end_pfn = bootmem_init(phys_base);
+
+#ifndef CONFIG_NEED_MULTIPLE_NODES
+        max_mapnr = last_valid_pfn;
+#endif
+        kernel_physical_mapping_init();
+
         {
-                unsigned long zones_size[MAX_NR_ZONES];
-                unsigned long zholes_size[MAX_NR_ZONES];
-                int znum;
+                unsigned long max_zone_pfns[MAX_NR_ZONES];
 
-                for (znum = 0; znum < MAX_NR_ZONES; znum++)
-                        zones_size[znum] = zholes_size[znum] = 0;
+                memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
 
-                zones_size[ZONE_NORMAL] = end_pfn;
-                zholes_size[ZONE_NORMAL] = end_pfn - pages_avail;
+                max_zone_pfns[ZONE_NORMAL] = end_pfn;
 
-                free_area_init_node(0, &contig_page_data, zones_size,
-                                    __pa(PAGE_OFFSET) >> PAGE_SHIFT,
-                                    zholes_size);
+                free_area_init_nodes(max_zone_pfns);
         }
 
         printk("Booting Linux...\n");
@@ -1408,21 +1819,52 @@ void __init paging_init(void)
         cpu_probe();
 }
 
-static void __init taint_real_pages(void)
+int __init page_in_phys_avail(unsigned long paddr)
+{
+        int i;
+
+        paddr &= PAGE_MASK;
+
+        for (i = 0; i < pavail_ents; i++) {
+                unsigned long start, end;
+
+                start = pavail[i].phys_addr;
+                end = start + pavail[i].reg_size;
+
+                if (paddr >= start && paddr < end)
+                        return 1;
+        }
+        if (paddr >= kern_base && paddr < (kern_base + kern_size))
+                return 1;
+#ifdef CONFIG_BLK_DEV_INITRD
+        if (paddr >= __pa(initrd_start) &&
+            paddr < __pa(PAGE_ALIGN(initrd_end)))
+                return 1;
+#endif
+
+        return 0;
+}
+
+static struct linux_prom64_registers pavail_rescan[MAX_BANKS] __initdata;
+static int pavail_rescan_ents __initdata;
+
+/* Certain OBP calls, such as fetching "available" properties, can
+ * claim physical memory.  So, along with initializing the valid
+ * address bitmap, what we do here is refetch the physical available
+ * memory list again, and make sure it provides at least as much
+ * memory as 'pavail' does.
+ */
+static void setup_valid_addr_bitmap_from_pavail(void)
 {
         int i;
 
         read_obp_memory("available", &pavail_rescan[0], &pavail_rescan_ents);
 
-        /* Find changes discovered in the physmem available rescan and
-         * reserve the lost portions in the bootmem maps.
-         */
         for (i = 0; i < pavail_ents; i++) {
                 unsigned long old_start, old_end;
 
                 old_start = pavail[i].phys_addr;
-                old_end = old_start +
-                        pavail[i].reg_size;
+                old_end = old_start + pavail[i].reg_size;
                 while (old_start < old_end) {
                         int n;
 
@@ -1440,7 +1882,16 @@ static void __init taint_real_pages(void)
                                         goto do_next_page;
                                 }
                         }
-                        reserve_bootmem(old_start, PAGE_SIZE, BOOTMEM_DEFAULT);
+
+                        prom_printf("mem_init: Lost memory in pavail\n");
+                        prom_printf("mem_init: OLD start[%lx] size[%lx]\n",
+                                    pavail[i].phys_addr,
+                                    pavail[i].reg_size);
+                        prom_printf("mem_init: NEW start[%lx] size[%lx]\n",
+                                    pavail_rescan[i].phys_addr,
+                                    pavail_rescan[i].reg_size);
+                        prom_printf("mem_init: Cannot continue, aborting.\n");
+                        prom_halt();
 
                 do_next_page:
                         old_start += PAGE_SIZE;
@@ -1448,32 +1899,6 @@ static void __init taint_real_pages(void)
         }
 }
 
-int __init page_in_phys_avail(unsigned long paddr)
-{
-        int i;
-
-        paddr &= PAGE_MASK;
-
-        for (i = 0; i < pavail_rescan_ents; i++) {
-                unsigned long start, end;
-
-                start = pavail_rescan[i].phys_addr;
-                end = start + pavail_rescan[i].reg_size;
-
-                if (paddr >= start && paddr < end)
-                        return 1;
-        }
-        if (paddr >= kern_base && paddr < (kern_base + kern_size))
-                return 1;
-#ifdef CONFIG_BLK_DEV_INITRD
-        if (paddr >= __pa(initrd_start) &&
-            paddr < __pa(PAGE_ALIGN(initrd_end)))
-                return 1;
-#endif
-
-        return 0;
-}
-
 void __init mem_init(void)
 {
         unsigned long codepages, datapages, initpages;
@@ -1496,14 +1921,26 @@ void __init mem_init(void)
                 addr += PAGE_SIZE;
         }
 
-        taint_real_pages();
+        setup_valid_addr_bitmap_from_pavail();
 
         high_memory = __va(last_valid_pfn << PAGE_SHIFT);
 
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+        for_each_online_node(i) {
+                if (NODE_DATA(i)->node_spanned_pages != 0) {
+                        totalram_pages +=
+                                free_all_bootmem_node(NODE_DATA(i));
+                }
+        }
+#else
+        totalram_pages = free_all_bootmem();
+#endif
+
         /* We subtract one to account for the mem_map_zero page
          * allocated below.
          */
-        totalram_pages = num_physpages = free_all_bootmem() - 1;
+        totalram_pages -= 1;
+        num_physpages = totalram_pages;
 
         /*
          * Set up the zero page, mark it reserved, so that page count
diff --git a/arch/sparc64/mm/tsb.c b/arch/sparc64/mm/tsb.c
index a3e6e4b635b3..fe70c8a557b5 100644
--- a/arch/sparc64/mm/tsb.c
+++ b/arch/sparc64/mm/tsb.c
@@ -321,7 +321,8 @@ retry_tsb_alloc:
         if (new_size > (PAGE_SIZE * 2))
                 gfp_flags = __GFP_NOWARN | __GFP_NORETRY;
 
-        new_tsb = kmem_cache_alloc(tsb_caches[new_cache_index], gfp_flags);
+        new_tsb = kmem_cache_alloc_node(tsb_caches[new_cache_index],
+                                        gfp_flags, numa_node_id());
         if (unlikely(!new_tsb)) {
                 /* Not being able to fork due to a high-order TSB
                  * allocation failure is very bad behavior.  Just back
diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S
index 2865c105b6a4..e686a67561af 100644
--- a/arch/sparc64/mm/ultra.S
+++ b/arch/sparc64/mm/ultra.S
@@ -476,7 +476,6 @@ xcall_sync_tick:
 #endif
         call            smp_synchronize_tick_client
          nop
-        clr             %l6
         b               rtrap_xcall
          ldx            [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
 
@@ -511,7 +510,6 @@ xcall_report_regs:
 #endif
         call            __show_regs
          add            %sp, PTREGS_OFF, %o0
-        clr             %l6
         /* Has to be a non-v9 branch due to the large distance. */
         b               rtrap_xcall
          ldx            [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
@@ -576,7 +574,7 @@ __hypervisor_tlb_xcall_error:
         mov     %l4, %o0
         call    hypervisor_tlbop_error_xcall
          mov    %l5, %o1
-        ba,a,pt %xcc, rtrap_clr_l6
+        ba,a,pt %xcc, rtrap
 
         .globl          __hypervisor_xcall_flush_tlb_mm
 __hypervisor_xcall_flush_tlb_mm: /* 21 insns */
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index cb2e40506379..3271379a36db 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -1015,6 +1015,7 @@ static struct uart_ops sunzilog_pops = {
         .verify_port    =       sunzilog_verify_port,
 };
 
+static int uart_chip_count;
 static struct uart_sunzilog_port *sunzilog_port_table;
 static struct zilog_layout __iomem **sunzilog_chip_regs;
 
@@ -1350,16 +1351,22 @@ static int zilog_irq = -1;
 
 static int __devinit zs_probe(struct of_device *op, const struct of_device_id *match)
 {
-        static int inst;
+        static int kbm_inst, uart_inst;
+        int inst;
         struct uart_sunzilog_port *up;
         struct zilog_layout __iomem *rp;
-        int keyboard_mouse;
+        int keyboard_mouse = 0;
         int err;
 
-        keyboard_mouse = 0;
         if (of_find_property(op->node, "keyboard", NULL))
                 keyboard_mouse = 1;
 
+        /* uarts must come before keyboards/mice */
+        if (keyboard_mouse)
+                inst = uart_chip_count + kbm_inst;
+        else
+                inst = uart_inst;
+
         sunzilog_chip_regs[inst] = of_ioremap(&op->resource[0], 0,
                                               sizeof(struct zilog_layout),
                                               "zs");
@@ -1427,6 +1434,7 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m
                                    rp, sizeof(struct zilog_layout));
                         return err;
                 }
+                uart_inst++;
         } else {
                 printk(KERN_INFO "%s: Keyboard at MMIO 0x%llx (irq = %d) "
                        "is a %s\n",
@@ -1438,12 +1446,11 @@ static int __devinit zs_probe(struct of_device *op, const struct of_device_id *m
                        op->dev.bus_id,
                        (unsigned long long) up[1].port.mapbase,
                        op->irqs[0], sunzilog_type(&up[1].port));
+                kbm_inst++;
         }
 
         dev_set_drvdata(&op->dev, &up[0]);
 
-        inst++;
-
         return 0;
 }
 
@@ -1491,28 +1498,25 @@ static struct of_platform_driver zs_driver = {
 static int __init sunzilog_init(void)
 {
         struct device_node *dp;
-        int err, uart_count;
-        int num_keybms;
+        int err;
+        int num_keybms = 0;
         int num_sunzilog = 0;
 
-        num_keybms = 0;
         for_each_node_by_name(dp, "zs") {
                 num_sunzilog++;
                 if (of_find_property(dp, "keyboard", NULL))
                         num_keybms++;
         }
 
-        uart_count = 0;
         if (num_sunzilog) {
-                int uart_count;
-
                 err = sunzilog_alloc_tables(num_sunzilog);
                 if (err)
                         goto out;
 
-                uart_count = (num_sunzilog * 2) - (2 * num_keybms);
+                uart_chip_count = num_sunzilog - num_keybms;
 
-                err = sunserial_register_minors(&sunzilog_reg, uart_count);
+                err = sunserial_register_minors(&sunzilog_reg,
+                                                uart_chip_count * 2);
                 if (err)
                         goto out_free_tables;
         }
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) */
diff --git a/include/asm-sparc64/mmzone.h b/include/asm-sparc64/mmzone.h
new file mode 100644
index 000000000000..ebf5986c12ed
--- /dev/null
+++ b/include/asm-sparc64/mmzone.h
@@ -0,0 +1,17 @@
+#ifndef _SPARC64_MMZONE_H
+#define _SPARC64_MMZONE_H
+
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+
+extern struct pglist_data *node_data[];
+
+#define NODE_DATA(nid)          (node_data[nid])
+#define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
+#define node_end_pfn(nid)       (NODE_DATA(nid)->node_end_pfn)
+
+extern int numa_cpu_lookup_table[];
+extern cpumask_t numa_cpumask_lookup_table[];
+
+#endif /* CONFIG_NEED_MULTIPLE_NODES */
+
+#endif /* _SPARC64_MMZONE_H */
diff --git a/include/asm-sparc64/numnodes.h b/include/asm-sparc64/numnodes.h
deleted file mode 100644
index 017e7e74f5e7..000000000000
--- a/include/asm-sparc64/numnodes.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _SPARC64_NUMNODES_H
-#define _SPARC64_NUMNODES_H
-
-#define NODES_SHIFT     0
-
-#endif /* !(_SPARC64_NUMNODES_H) */
diff --git a/include/asm-sparc64/ptrace.h b/include/asm-sparc64/ptrace.h
index 6da197803efc..b4b951d570bb 100644
--- a/include/asm-sparc64/ptrace.h
+++ b/include/asm-sparc64/ptrace.h
@@ -8,6 +8,8 @@
  * stack during a system call and basically all traps.
  */
 
+#define PT_REGS_MAGIC 0x57ac6c00
+
 #ifndef __ASSEMBLY__
 
 struct pt_regs {
@@ -16,7 +18,19 @@ struct pt_regs {
         unsigned long tpc;
         unsigned long tnpc;
         unsigned int y;
-        unsigned int fprs;
+
+        /* We encode a magic number, PT_REGS_MAGIC, along
+         * with the %tt (trap type) register value at trap
+         * entry time.  The magic number allows us to identify
+         * accurately a trap stack frame in the stack
+         * unwinder, and the %tt value allows us to test
+         * things like "in a system call" etc. for an arbitray
+         * process.
+         *
+         * The PT_REGS_MAGIC is choosen such that it can be
+         * loaded completely using just a sethi instruction.
+         */
+        unsigned int magic;
 };
 
 struct pt_regs32 {
@@ -147,7 +161,7 @@ extern void __show_regs(struct pt_regs *);
 #define PT_V9_TPC    0x88
 #define PT_V9_TNPC   0x90
 #define PT_V9_Y      0x98
-#define PT_V9_FPRS   0x9c
+#define PT_V9_MAGIC  0x9c
 #define PT_TSTATE       PT_V9_TSTATE
 #define PT_TPC          PT_V9_TPC
 #define PT_TNPC         PT_V9_TNPC
diff --git a/include/asm-sparc64/sparsemem.h b/include/asm-sparc64/sparsemem.h
index 77bcd2bfa53c..b99d4e4b6d28 100644
--- a/include/asm-sparc64/sparsemem.h
+++ b/include/asm-sparc64/sparsemem.h
@@ -3,7 +3,7 @@
 
 #ifdef __KERNEL__
 
-#define SECTION_SIZE_BITS       31
+#define SECTION_SIZE_BITS       30
 #define MAX_PHYSADDR_BITS       42
 #define MAX_PHYSMEM_BITS        42
 
diff --git a/include/asm-sparc64/topology.h b/include/asm-sparc64/topology.h
index c6b557034f68..001c04027c82 100644
--- a/include/asm-sparc64/topology.h
+++ b/include/asm-sparc64/topology.h
@@ -1,6 +1,77 @@
 #ifndef _ASM_SPARC64_TOPOLOGY_H
 #define _ASM_SPARC64_TOPOLOGY_H
 
+#ifdef CONFIG_NUMA
+
+#include <asm/mmzone.h>
+
+static inline int cpu_to_node(int cpu)
+{
+        return numa_cpu_lookup_table[cpu];
+}
+
+#define parent_node(node)       (node)
+
+static inline cpumask_t node_to_cpumask(int node)
+{
+        return numa_cpumask_lookup_table[node];
+}
+
+/* Returns a pointer to the cpumask of CPUs on Node 'node'. */
+#define node_to_cpumask_ptr(v, node)            \
+                cpumask_t *v = &(numa_cpumask_lookup_table[node])
+
+#define node_to_cpumask_ptr_next(v, node)       \
+                           v = &(numa_cpumask_lookup_table[node])
+
+static inline int node_to_first_cpu(int node)
+{
+        cpumask_t tmp;
+        tmp = node_to_cpumask(node);
+        return first_cpu(tmp);
+}
+
+struct pci_bus;
+#ifdef CONFIG_PCI
+extern int pcibus_to_node(struct pci_bus *pbus);
+#else
+static inline int pcibus_to_node(struct pci_bus *pbus)
+{
+        return -1;
+}
+#endif
+
+#define pcibus_to_cpumask(bus)  \
+        (pcibus_to_node(bus) == -1 ? \
+         CPU_MASK_ALL : \
+         node_to_cpumask(pcibus_to_node(bus)))
+
+#define SD_NODE_INIT (struct sched_domain) {            \
+        .min_interval           = 8,                    \
+        .max_interval           = 32,                   \
+        .busy_factor            = 32,                   \
+        .imbalance_pct          = 125,                  \
+        .cache_nice_tries       = 2,                    \
+        .busy_idx               = 3,                    \
+        .idle_idx               = 2,                    \
+        .newidle_idx            = 0,                    \
+        .wake_idx               = 1,                    \
+        .forkexec_idx           = 1,                    \
+        .flags                  = SD_LOAD_BALANCE       \
+                                | SD_BALANCE_FORK       \
+                                | SD_BALANCE_EXEC       \
+                                | SD_SERIALIZE          \
+                                | SD_WAKE_BALANCE,      \
+        .last_balance           = jiffies,              \
+        .balance_interval       = 1,                    \
+}
+
+#else /* CONFIG_NUMA */
+
+#include <asm-generic/topology.h>
+
+#endif /* !(CONFIG_NUMA) */
+
 #ifdef CONFIG_SMP
 #define topology_physical_package_id(cpu)       (cpu_data(cpu).proc_id)
 #define topology_core_id(cpu)                   (cpu_data(cpu).core_id)
@@ -10,8 +81,6 @@
 #define smt_capable()                           (sparc64_multi_core)
 #endif /* CONFIG_SMP */
 
-#include <asm-generic/topology.h>
-
 #define cpu_coregroup_map(cpu)                  (cpu_core_map[cpu])
 
 #endif /* _ASM_SPARC64_TOPOLOGY_H */
diff --git a/include/asm-sparc64/ttable.h b/include/asm-sparc64/ttable.h
index 7208a777750e..d3cc4eff39a6 100644
--- a/include/asm-sparc64/ttable.h
+++ b/include/asm-sparc64/ttable.h
@@ -28,7 +28,7 @@
         call    routine;                                \
          add    %sp, PTREGS_OFF, %o0;                   \
         ba,pt   %xcc, rtrap;                            \
-         clr    %l6;                                    \
+         nop;                                           \
         nop;
 
 #define TRAP_7INSNS(routine)                            \
@@ -38,7 +38,7 @@
         call    routine;                                \
          add    %sp, PTREGS_OFF, %o0;                   \
         ba,pt   %xcc, rtrap;                            \
-         clr    %l6;
+         nop;
 
 #define TRAP_SAVEFPU(routine)                           \
         sethi   %hi(109f), %g7;                         \
@@ -47,7 +47,7 @@
         call    routine;                                \
          add    %sp, PTREGS_OFF, %o0;                   \
         ba,pt   %xcc, rtrap;                            \
-         clr    %l6;                                    \
+         nop;                                           \
         nop;
 
 #define TRAP_NOSAVE(routine)                            \
@@ -67,7 +67,7 @@
         call    routine;                                \
          add    %sp, PTREGS_OFF, %o0;                   \
         ba,pt   %xcc, rtrap;                            \
-         clr    %l6;                                    \
+         nop;                                           \
         nop;
         
 #define TRAP_ARG(routine, arg)                          \
@@ -78,7 +78,7 @@
         call    routine;                                \
          mov    arg, %o1;                               \
         ba,pt   %xcc, rtrap;                            \
-         clr    %l6;
+         nop;
         
 #define TRAPTL1_ARG(routine, arg)                       \
         sethi   %hi(109f), %g7;                         \
@@ -88,7 +88,7 @@
         call    routine;                                \
          mov    arg, %o1;                               \
         ba,pt   %xcc, rtrap;                            \
-         clr    %l6;
+         nop;
         
 #define SYSCALL_TRAP(routine, systbl)                   \
         sethi   %hi(109f), %g7;                         \
@@ -166,7 +166,7 @@
         ldx     [%sp + PTREGS_OFF + PT_V9_TNPC], %l1;                   \
         add     %l1, 4, %l2;                                            \
         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];
                 
 #ifdef CONFIG_KPROBES
diff --git a/lib/lmb.c b/lib/lmb.c
index 896e2832099e..207147ab25e4 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -346,7 +346,7 @@ u64 __init __lmb_alloc_base(u64 size, u64 align, u64 max_addr)
                         if (j < 0) {
                                 /* this area isn't reserved, take it */
                                 if (lmb_add_region(&lmb.reserved, base,
-                                                   size) < 0)
+                                                   lmb_align_up(size, align)) < 0)
                                         return 0;
                                 return base;
                         }