[SPARC64]: Use machine description and OBP properly for cpu probing.

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

8 files changed, 69 insertions, 14 deletions

diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h
index e89922d6718..f321b1d2122 100644
--- a/include/asm-sparc64/cpudata.h
+++ b/include/asm-sparc64/cpudata.h
@@ -17,11 +17,11 @@
 typedef struct {
 	/* Dcache line 1 */
 	unsigned int	__softirq_pending; /* must be 1st, see rtrap.S */
-	unsigned int	__pad0_1;
-	unsigned int	__pad0_2;
-	unsigned int	__pad1;
+	unsigned int	__pad0;
 	unsigned long	clock_tick;	/* %tick's per second */
 	unsigned long	udelay_val;
+	unsigned int	__pad1;
+	unsigned int	__pad2;
 
 	/* Dcache line 2, rarely used */
 	unsigned int	dcache_size;
@@ -30,8 +30,8 @@ typedef struct {
 	unsigned int	icache_line_size;
 	unsigned int	ecache_size;
 	unsigned int	ecache_line_size;
+	int		core_id;
 	unsigned int	__pad3;
-	unsigned int	__pad4;
 } cpuinfo_sparc;
 
 DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data);
@@ -76,12 +76,18 @@ struct trap_per_cpu {
 
 /* Dcache line 8: IRQ work list, and keep trap_block a power-of-2 in size.  */
 	unsigned int		irq_worklist;
-	unsigned int		__pad1;
-	unsigned long		__pad2[3];
+	unsigned int		cpu_mondo_qmask;
+	unsigned int		dev_mondo_qmask;
+	unsigned int		resum_qmask;
+	unsigned int		nonresum_qmask;
+	unsigned int		__pad2[3];
 } __attribute__((aligned(64)));
 extern struct trap_per_cpu trap_block[NR_CPUS];
 extern void init_cur_cpu_trap(struct thread_info *);
 extern void setup_tba(void);
+extern int ncpus_probed;
+
+extern unsigned long real_hard_smp_processor_id(void);
 
 struct cpuid_patch_entry {
 	unsigned int	addr;
@@ -122,6 +128,10 @@ extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch,
 #define TRAP_PER_CPU_TSB_HUGE		0xd0
 #define TRAP_PER_CPU_TSB_HUGE_TEMP	0xd8
 #define TRAP_PER_CPU_IRQ_WORKLIST	0xe0
+#define TRAP_PER_CPU_CPU_MONDO_QMASK	0xe4
+#define TRAP_PER_CPU_DEV_MONDO_QMASK	0xe8
+#define TRAP_PER_CPU_RESUM_QMASK	0xec
+#define TRAP_PER_CPU_NONRESUM_QMASK	0xf0
 
 #define TRAP_BLOCK_SZ_SHIFT		8
 
diff --git a/include/asm-sparc64/hypervisor.h b/include/asm-sparc64/hypervisor.h
index 17b233b64af..0a241c82fc7 100644
--- a/include/asm-sparc64/hypervisor.h
+++ b/include/asm-sparc64/hypervisor.h
@@ -120,6 +120,11 @@
  */
 #define HV_FAST_MACH_DESC		0x01
 
+#ifndef __ASSEMBLY__
+extern unsigned long sun4v_mach_desc(unsigned long buffer_pa, unsigned long buf_len,
+				     unsigned long *real_buf_len);
+#endif
+
 /* mach_exit()
  * TRAP:	HV_FAST_TRAP
  * FUNCTION:	HV_FAST_MACH_SIR
diff --git a/include/asm-sparc64/mdesc.h b/include/asm-sparc64/mdesc.h
new file mode 100644
index 00000000000..124eb8ca237
--- /dev/null
+++ b/include/asm-sparc64/mdesc.h
@@ -0,0 +1,39 @@
+#ifndef _SPARC64_MDESC_H
+#define _SPARC64_MDESC_H
+
+#include <linux/types.h>
+#include <asm/prom.h>
+
+struct mdesc_node;
+struct mdesc_arc {
+	const char		*name;
+	struct mdesc_node	*arc;
+};
+
+struct mdesc_node {
+	const char		*name;
+	u64			node;
+	unsigned int		unique_id;
+	unsigned int		num_arcs;
+	struct property		*properties;
+	struct mdesc_node	*hash_next;
+	struct mdesc_node	*allnodes_next;
+	struct mdesc_arc	arcs[0];
+};
+
+extern struct mdesc_node *md_find_node_by_name(struct mdesc_node *from,
+					       const char *name);
+#define md_for_each_node_by_name(__mn, __name) \
+	for (__mn = md_find_node_by_name(NULL, __name); __mn; \
+	     __mn = md_find_node_by_name(__mn, __name))
+
+extern struct property *md_find_property(const struct mdesc_node *mp,
+					 const char *name,
+					 int *lenp);
+extern const void *md_get_property(const struct mdesc_node *mp,
+				   const char *name,
+				   int *lenp);
+
+extern void sun4v_mdesc_init(void);
+
+#endif
diff --git a/include/asm-sparc64/oplib.h b/include/asm-sparc64/oplib.h
index 07275e2366a..992f9f7a476 100644
--- a/include/asm-sparc64/oplib.h
+++ b/include/asm-sparc64/oplib.h
@@ -319,11 +319,6 @@ extern int prom_inst2pkg(int);
 extern int prom_service_exists(const char *service_name);
 extern void prom_sun4v_guest_soft_state(void);
 
-/* CPU probing helpers.  */
-struct device_node;
-int cpu_find_by_instance(int instance, struct device_node **dev_node, int *mid);
-int cpu_find_by_mid(int mid, struct device_node **prom_node);
-
 /* Client interface level routines. */
 extern void prom_set_trap_table(unsigned long tba);
 extern void prom_set_trap_table_sun4v(unsigned long tba, unsigned long mmfsa);
diff --git a/include/asm-sparc64/percpu.h b/include/asm-sparc64/percpu.h
index ced8cbde046..88db872ce2f 100644
--- a/include/asm-sparc64/percpu.h
+++ b/include/asm-sparc64/percpu.h
@@ -5,7 +5,8 @@
 
 #ifdef CONFIG_SMP
 
-extern void setup_per_cpu_areas(void);
+#define setup_per_cpu_areas()			do { } while (0)
+extern void real_setup_per_cpu_areas(void);
 
 extern unsigned long __per_cpu_base;
 extern unsigned long __per_cpu_shift;
@@ -34,6 +35,7 @@ do {								\
 } while (0)
 #else /* ! SMP */
 
+#define real_setup_per_cpu_areas()		do { } while (0)
 #define DEFINE_PER_CPU(type, name) \
     __typeof__(type) per_cpu__##name
 
diff --git a/include/asm-sparc64/prom.h b/include/asm-sparc64/prom.h
index ddad5f99ac7..b4df3042add 100644
--- a/include/asm-sparc64/prom.h
+++ b/include/asm-sparc64/prom.h
@@ -90,6 +90,7 @@ extern struct device_node *of_find_compatible_node(struct device_node *from,
 	const char *type, const char *compat);
 extern struct device_node *of_find_node_by_path(const char *path);
 extern struct device_node *of_find_node_by_phandle(phandle handle);
+extern struct device_node *of_find_node_by_cpuid(int cpuid);
 extern struct device_node *of_get_parent(const struct device_node *node);
 extern struct device_node *of_get_next_child(const struct device_node *node,
 					     struct device_node *prev);
diff --git a/include/asm-sparc64/smp.h b/include/asm-sparc64/smp.h
index 869d16fb907..f76e1492add 100644
--- a/include/asm-sparc64/smp.h
+++ b/include/asm-sparc64/smp.h
@@ -41,7 +41,7 @@ extern cpumask_t cpu_sibling_map[NR_CPUS];
 extern int hard_smp_processor_id(void);
 #define raw_smp_processor_id() (current_thread_info()->cpu)
 
-extern void smp_setup_cpu_possible_map(void);
+extern void smp_fill_in_sib_core_maps(void);
 extern unsigned char boot_cpu_id;
 
 #endif /* !(__ASSEMBLY__) */
@@ -49,7 +49,7 @@ extern unsigned char boot_cpu_id;
 #else
 
 #define hard_smp_processor_id()		0
-#define smp_setup_cpu_possible_map() do { } while (0)
+#define smp_fill_in_sib_core_maps() do { } while (0)
 #define boot_cpu_id	(0)
 
 #endif /* !(CONFIG_SMP) */
diff --git a/include/asm-sparc64/topology.h b/include/asm-sparc64/topology.h
index 98a6c613589..e0d450d600e 100644
--- a/include/asm-sparc64/topology.h
+++ b/include/asm-sparc64/topology.h
@@ -6,4 +6,7 @@
 
 #include <asm-generic/topology.h>
 
+#define topology_core_id(cpu)			(cpu_data(cpu).core_id)
+#define topology_thread_siblings(cpu)		(cpu_sibling_map[cpu])
+
 #endif /* _ASM_SPARC64_TOPOLOGY_H */