MIPS: Netlogic: Introduce support for multi-node

index fd735bc..2eb39fa 100644
@@ -46,10 +46,10 @@
 
 #ifndef __ASSEMBLY__
 #include <linux/cpumask.h>
+#include <linux/spinlock.h>
+#include <asm/irq.h>
 
 struct irq_desc;
-extern struct plat_smp_ops nlm_smp_ops;
-extern char nlm_reset_entry[], nlm_reset_entry_end[];
 void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc);
 void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc);
 void nlm_smp_irq_init(void);

@@ -70,10 +70,42 @@ nlm_set_nmi_handler(void *handler)
  * Misc.
  */
 unsigned int nlm_get_cpu_frequency(void);
+void nlm_node_init(int node);
+extern struct plat_smp_ops nlm_smp_ops;
+extern char nlm_reset_entry[], nlm_reset_entry_end[];
 
-extern unsigned long nlm_common_ebase;
-extern int nlm_threads_per_core;
-extern uint32_t nlm_coremask;
+extern unsigned int nlm_threads_per_core;
 extern cpumask_t nlm_cpumask;
+
+struct nlm_soc_info {
+	unsigned long coremask;	/* cores enabled on the soc */
+	unsigned long ebase;
+	uint64_t irqmask;
+	uint64_t sysbase;	/* only for XLP */
+	uint64_t picbase;
+	spinlock_t piclock;
+};
+
+#define NLM_CORES_PER_NODE	8
+#define NLM_THREADS_PER_CORE	4
+#define NLM_CPUS_PER_NODE	(NLM_CORES_PER_NODE * NLM_THREADS_PER_CORE)
+#define	nlm_get_node(i)		(&nlm_nodes[i])
+#define NLM_NR_NODES		1
+#define	nlm_current_node()	(&nlm_nodes[0])
+
+struct irq_data;
+uint64_t nlm_pci_irqmask(int node);
+void nlm_set_pic_extra_ack(int node, int irq,  void (*xack)(struct irq_data *));
+
+/*
+ * The NR_IRQs is divided between nodes, each of them has a separate irq space
+ */
+static inline int nlm_irq_to_xirq(int node, int irq)
+{
+	return node * NR_IRQS / NLM_NR_NODES + irq;
+}
+
+extern struct nlm_soc_info nlm_nodes[NLM_NR_NODES];
+extern int nlm_cpu_ready[];
 #endif
 #endif /* _NETLOGIC_COMMON_H_ */

index 8c53d0b..c9f6de5 100644
@@ -73,4 +73,9 @@ static inline int hard_smp_processor_id(void)
 	return __read_32bit_c0_register($15, 1) & 0x3ff;
 }
 
+static inline int nlm_nodeid(void)
+{
+	return (__read_32bit_c0_register($15, 1) >> 5) & 0x3;
+}
+
 #endif /*_ASM_NLM_MIPS_EXTS_H */

index 061e071..857a967 100644
@@ -381,7 +381,6 @@ nlm_pic_init_irt(uint64_t base, int irt, int irq, int hwt)
 	nlm_pic_write_irt_direct(base, irt, 0, 0, 0, irq, hwt);
 }
 
-extern uint64_t nlm_pic_base;
 int nlm_irq_to_irt(int irq);
 int nlm_irt_to_irq(int irt);
 

index 21432f7..258e8cc 100644
@@ -124,6 +124,5 @@
 #define	nlm_get_sys_pcibase(node) nlm_pcicfg_base(XLP_IO_SYS_OFFSET(node))
 #define	nlm_get_sys_regbase(node) (nlm_get_sys_pcibase(node) + XLP_IO_PCI_HDRSZ)
 
-extern uint64_t nlm_sys_base;
 #endif
 #endif

index 868013e..9a691b1 100644
@@ -258,7 +258,5 @@ nlm_pic_init_irt(uint64_t base, int irt, int irq, int hwt)
 	nlm_write_reg(base, PIC_IRT_1(irt),
 		(1 << 30) | (1 << 6) | irq);
 }
-
-extern uint64_t nlm_pic_base;
 #endif
 #endif /* _ASM_NLM_XLR_PIC_H */

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index 6c65ac7..d3a26e7 100644
@@ -40,23 +40,23 @@
 #include <asm/mipsregs.h>
 #include <asm/time.h>
 
+#include <asm/netlogic/common.h>
 #include <asm/netlogic/haldefs.h>
 #include <asm/netlogic/xlp-hal/iomap.h>
 #include <asm/netlogic/xlp-hal/xlp.h>
 #include <asm/netlogic/xlp-hal/pic.h>
 #include <asm/netlogic/xlp-hal/sys.h>
 
-/* These addresses are computed by the nlm_hal_init() */
-uint64_t nlm_io_base;
-uint64_t nlm_sys_base;
-uint64_t nlm_pic_base;
-
 /* Main initialization */
-void nlm_hal_init(void)
+void nlm_node_init(int node)
 {
-	nlm_io_base = CKSEG1ADDR(XLP_DEFAULT_IO_BASE);
-	nlm_sys_base = nlm_get_sys_regbase(0);	/* node 0 */
-	nlm_pic_base = nlm_get_pic_regbase(0);	/* node 0 */
+	struct nlm_soc_info *nodep;
+
+	nodep = nlm_get_node(node);
+	nodep->sysbase = nlm_get_sys_regbase(node);
+	nodep->picbase = nlm_get_pic_regbase(node);
+	nodep->ebase = read_c0_ebase() & (~((1 << 12) - 1));
+	spin_lock_init(&nodep->piclock);
 }
 
 int nlm_irq_to_irt(int irq)

@@ -138,14 +138,15 @@ int nlm_irt_to_irq(int irt)
 	}
 }
 
-unsigned int nlm_get_core_frequency(int core)
+unsigned int nlm_get_core_frequency(int node, int core)
 {
 	unsigned int pll_divf, pll_divr, dfs_div, ext_div;
 	unsigned int rstval, dfsval, denom;
-	uint64_t num;
+	uint64_t num, sysbase;
 
-	rstval = nlm_read_sys_reg(nlm_sys_base, SYS_POWER_ON_RESET_CFG);
-	dfsval = nlm_read_sys_reg(nlm_sys_base, SYS_CORE_DFS_DIV_VALUE);
+	sysbase = nlm_get_node(node)->sysbase;
+	rstval = nlm_read_sys_reg(sysbase, SYS_POWER_ON_RESET_CFG);
+	dfsval = nlm_read_sys_reg(sysbase, SYS_CORE_DFS_DIV_VALUE);
 	pll_divf = ((rstval >> 10) & 0x7f) + 1;
 	pll_divr = ((rstval >> 8)  & 0x3) + 1;
 	ext_div  = ((rstval >> 30) & 0x3) + 1;

@@ -159,5 +160,5 @@ unsigned int nlm_get_core_frequency(int core)
 
 unsigned int nlm_get_cpu_frequency(void)
 {
-	return nlm_get_core_frequency(0);
+	return nlm_get_core_frequency(0, 0);
 }

index 9f8d360..465b8d6 100644
@@ -52,17 +52,17 @@
 #include <asm/netlogic/xlp-hal/xlp.h>
 #include <asm/netlogic/xlp-hal/sys.h>
 
-unsigned long nlm_common_ebase = 0x0;
-
-/* default to uniprocessor */
-uint32_t nlm_coremask = 1;
+uint64_t nlm_io_base;
+struct nlm_soc_info nlm_nodes[NLM_NR_NODES];
 cpumask_t nlm_cpumask = CPU_MASK_CPU0;
-int  nlm_threads_per_core = 1;
+unsigned int nlm_threads_per_core;
 extern u32 __dtb_start[];
 
 static void nlm_linux_exit(void)
 {
-	nlm_write_sys_reg(nlm_sys_base, SYS_CHIP_RESET, 1);
+	uint64_t sysbase = nlm_get_node(0)->sysbase;
+
+	nlm_write_sys_reg(sysbase, SYS_CHIP_RESET, 1);
 	for ( ; ; )
 		cpu_wait();
 }

@@ -110,10 +110,9 @@ void xlp_mmu_init(void)
 
 void __init prom_init(void)
 {
+	nlm_io_base = CKSEG1ADDR(XLP_DEFAULT_IO_BASE);
 	xlp_mmu_init();
-	nlm_hal_init();
-
-	nlm_common_ebase = read_c0_ebase() & (~((1 << 12) - 1));
+	nlm_node_init(0);
 
 #ifdef CONFIG_SMP
 	cpumask_setall(&nlm_cpumask);

index 88ce38d..cb90106 100644
@@ -79,32 +79,38 @@ static int xlp_wakeup_core(uint64_t sysbase, int core)
 
 static void xlp_enable_secondary_cores(const cpumask_t *wakeup_mask)
 {
-	uint64_t syspcibase, sysbase;
+	struct nlm_soc_info *nodep;
+	uint64_t syspcibase;
 	uint32_t syscoremask;
-	int core, n;
+	int core, n, cpu;
 
-	for (n = 0; n < 4; n++) {
+	for (n = 0; n < NLM_NR_NODES; n++) {
 		syspcibase = nlm_get_sys_pcibase(n);
 		if (nlm_read_reg(syspcibase, 0) == 0xffffffff)
 			break;
 
 		/* read cores in reset from SYS and account for boot cpu */
-		sysbase = nlm_get_sys_regbase(n);
-		syscoremask = nlm_read_sys_reg(sysbase, SYS_CPU_RESET);
+		nlm_node_init(n);
+		nodep = nlm_get_node(n);
+		syscoremask = nlm_read_sys_reg(nodep->sysbase, SYS_CPU_RESET);
 		if (n == 0)
 			syscoremask |= 1;
 
-		for (core = 0; core < 8; core++) {
+		for (core = 0; core < NLM_CORES_PER_NODE; core++) {
 			/* see if the core exists */
 			if ((syscoremask & (1 << core)) == 0)
 				continue;
 
 			/* see if at least the first thread is enabled */
-			if (!cpumask_test_cpu((n * 8 + core) * 4, wakeup_mask))
+			cpu = (n * NLM_CORES_PER_NODE + core)
+						* NLM_THREADS_PER_CORE;
+			if (!cpumask_test_cpu(cpu, wakeup_mask))
 				continue;
 
 			/* wake up the core */
-			if (!xlp_wakeup_core(sysbase, core))
+			if (xlp_wakeup_core(nodep->sysbase, core))
+				nodep->coremask |= 1u << core;
+			else
 				pr_err("Failed to enable core %d\n", core);
 		}
 	}

index 8fca680..696d424 100644
@@ -51,14 +51,11 @@
 #include <asm/netlogic/xlr/gpio.h>
 
 uint64_t nlm_io_base = DEFAULT_NETLOGIC_IO_BASE;
-uint64_t nlm_pic_base;
 struct psb_info nlm_prom_info;
 
-unsigned long nlm_common_ebase = 0x0;
-
 /* default to uniprocessor */
-uint32_t nlm_coremask = 1;
-int  nlm_threads_per_core = 1;
+unsigned int  nlm_threads_per_core = 1;
+struct nlm_soc_info nlm_nodes[NLM_NR_NODES];
 cpumask_t nlm_cpumask = CPU_MASK_CPU0;
 
 static void __init nlm_early_serial_setup(void)

@@ -177,6 +174,16 @@ static void prom_add_memory(void)
 	}
 }
 
+static void nlm_init_node(void)
+{
+	struct nlm_soc_info *nodep;
+
+	nodep = nlm_current_node();
+	nodep->picbase = nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET);
+	nodep->ebase = read_c0_ebase() & (~((1 << 12) - 1));
+	spin_lock_init(&nodep->piclock);
+}
+
 void __init prom_init(void)
 {
 	int i, *argv, *envp;		/* passed as 32 bit ptrs */

@@ -188,11 +195,10 @@ void __init prom_init(void)
 	prom_infop = (struct psb_info *)(long)(int)fw_arg3;
 
 	nlm_prom_info = *prom_infop;
-	nlm_pic_base = nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET);
+	nlm_init_node();
 
 	nlm_early_serial_setup();
 	build_arcs_cmdline(argv);
-	nlm_common_ebase = read_c0_ebase() & (~((1 << 12) - 1));
 	prom_add_memory();
 
 #ifdef CONFIG_SMP

index 0878924..0cc40b6 100644
@@ -50,18 +50,34 @@
 
 int __cpuinit xlr_wakeup_secondary_cpus(void)
 {
-	unsigned int i, boot_cpu;
+	struct nlm_soc_info *nodep;
+	unsigned int i, j, boot_cpu;
 
 	/*
 	 *  In case of RMI boot, hit with NMI to get the cores
 	 *  from bootloader to linux code.
 	 */
+	nodep = nlm_get_node(0);
 	boot_cpu = hard_smp_processor_id();
 	nlm_set_nmi_handler(nlm_rmiboot_preboot);
 	for (i = 0; i < NR_CPUS; i++) {
 		if (i == boot_cpu || !cpumask_test_cpu(i, &nlm_cpumask))
 			continue;
-		nlm_pic_send_ipi(nlm_pic_base, i, 1, 1); /* send NMI */
+		nlm_pic_send_ipi(nodep->picbase, i, 1, 1); /* send NMI */
+	}
+
+	/* Fill up the coremask early */
+	nodep->coremask = 1;
+	for (i = 1; i < NLM_CORES_PER_NODE; i++) {
+		for (j = 1000000; j > 0; j--) {
+			if (nlm_cpu_ready[i * NLM_THREADS_PER_CORE])
+				break;
+			udelay(10);
+		}
+		if (j != 0)
+			nodep->coremask |= (1u << i);
+		else
+			pr_err("Failed to wakeup core %d\n", i);
 	}
 
 	return 0;