Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: (23 commits)
  sparc: sunzilog uart order
  [SPARC64]: Detect trap frames in stack backtraces.
  [SPARC64]: %l6 trap return handling no longer necessary.
  [SPARC64]: Use trap type stored in pt_regs to handle syscall restart.
  [SPARC64]: Store magic cookie and trap type in pt_regs.
  [SPARC64]: PROM debug console can be CON_ANYTIME.
  sparc64: cleanup after SunOS/Solaris binary emulation removal
  sparc: cleanup after SunOS binary emulation removal
  [SPARC64]: Add NUMA support.
  [SPARC64]: Allocate TSB node-local.
  [SPARC64]: NUMA device infrastructure.
  [SPARC64]: Kill pci_iommu_table_init() declaration.
  [SPARC64]: Once we have the boot cmdline, call parse_early_param()
  [SPARC64]: Remove unused asm-sparc64/numnodes.h
  [SPARC64]: Decrease SECTION_SIZE_BITS to 30.
  [SPARC64]: Initialize MDESC earlier and use lmb_alloc()
  [SPARC64]: Use lmb_alloc() for PROM device tree.
  [SPARC64]: Call real_setup_per_cpu_areas() earlier and use lmb_alloc().
  [SPARC64]: Fully use LMB information in bootmem_init().
  [SPARC64]: Start using LMB information in bootmem_init().
  ...

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 */

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);
 

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) */

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 */

include/asm-sparc64/numnodes.h

@@ -1,6 +0,0 @@
-#ifndef _SPARC64_NUMNODES_H
-#define _SPARC64_NUMNODES_H
-
-#define NODES_SHIFT	0
-
-#endif /* !(_SPARC64_NUMNODES_H) */

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

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
 

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 */

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