#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);
* 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_ */
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 */
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);
#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
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 */
*/
/* Globals */
-static uint64_t nlm_irq_mask;
-static DEFINE_SPINLOCK(nlm_pic_lock);
-
static void xlp_pic_enable(struct irq_data *d)
{
unsigned long flags;
+ struct nlm_soc_info *nodep;
int irt;
+ nodep = nlm_current_node();
irt = nlm_irq_to_irt(d->irq);
if (irt == -1)
return;
- spin_lock_irqsave(&nlm_pic_lock, flags);
- nlm_pic_enable_irt(nlm_pic_base, irt);
- spin_unlock_irqrestore(&nlm_pic_lock, flags);
+ spin_lock_irqsave(&nodep->piclock, flags);
+ nlm_pic_enable_irt(nodep->picbase, irt);
+ spin_unlock_irqrestore(&nodep->piclock, flags);
}
static void xlp_pic_disable(struct irq_data *d)
{
+ struct nlm_soc_info *nodep;
unsigned long flags;
int irt;
+ nodep = nlm_current_node();
irt = nlm_irq_to_irt(d->irq);
if (irt == -1)
return;
- spin_lock_irqsave(&nlm_pic_lock, flags);
- nlm_pic_disable_irt(nlm_pic_base, irt);
- spin_unlock_irqrestore(&nlm_pic_lock, flags);
+ spin_lock_irqsave(&nodep->piclock, flags);
+ nlm_pic_disable_irt(nodep->picbase, irt);
+ spin_unlock_irqrestore(&nodep->piclock, flags);
}
static void xlp_pic_mask_ack(struct irq_data *d)
static void xlp_pic_unmask(struct irq_data *d)
{
void *hd = irq_data_get_irq_handler_data(d);
+ struct nlm_soc_info *nodep;
int irt;
+ nodep = nlm_current_node();
irt = nlm_irq_to_irt(d->irq);
if (irt == -1)
return;
extra_ack(d);
}
/* Ack is a single write, no need to lock */
- nlm_pic_ack(nlm_pic_base, irt);
+ nlm_pic_ack(nodep->picbase, irt);
}
static struct irq_chip xlp_pic = {
void __init init_nlm_common_irqs(void)
{
int i, irq, irt;
+ uint64_t irqmask;
+ struct nlm_soc_info *nodep;
+ nodep = nlm_current_node();
+ irqmask = (1ULL << IRQ_TIMER);
for (i = 0; i < PIC_IRT_FIRST_IRQ; i++)
irq_set_chip_and_handler(i, &nlm_cpu_intr, handle_percpu_irq);
nlm_smp_function_ipi_handler);
irq_set_chip_and_handler(IRQ_IPI_SMP_RESCHEDULE, &nlm_cpu_intr,
nlm_smp_resched_ipi_handler);
- nlm_irq_mask |=
+ irqmask |=
((1ULL << IRQ_IPI_SMP_FUNCTION) | (1ULL << IRQ_IPI_SMP_RESCHEDULE));
#endif
irt = nlm_irq_to_irt(irq);
if (irt == -1)
continue;
- nlm_irq_mask |= (1ULL << irq);
- nlm_pic_init_irt(nlm_pic_base, irt, irq, 0);
+ irqmask |= (1ULL << irq);
+ nlm_pic_init_irt(nodep->picbase, irt, irq, 0);
}
- nlm_irq_mask |= (1ULL << IRQ_TIMER);
+ nodep->irqmask = irqmask;
}
void __init arch_init_irq(void)
/* Initialize the irq descriptors */
init_nlm_common_irqs();
- write_c0_eimr(nlm_irq_mask);
+ write_c0_eimr(nlm_current_node()->irqmask);
}
void __cpuinit nlm_smp_irq_init(void)
{
/* set interrupt mask for non-zero cpus */
- write_c0_eimr(nlm_irq_mask);
+ write_c0_eimr(nlm_current_node()->irqmask);
}
asmlinkage void plat_irq_dispatch(void)
{
uint64_t eirr;
- int i;
+ int i, node;
+ node = nlm_nodeid();
eirr = read_c0_eirr() & read_c0_eimr();
if (eirr & (1 << IRQ_TIMER)) {
do_IRQ(IRQ_TIMER);
return;
}
-
+#ifdef CONFIG_SMP
+ if (eirr & IRQ_IPI_SMP_FUNCTION) {
+ do_IRQ(IRQ_IPI_SMP_FUNCTION);
+ return;
+ }
+ if (eirr & IRQ_IPI_SMP_RESCHEDULE) {
+ do_IRQ(IRQ_IPI_SMP_RESCHEDULE);
+ return;
+ }
+#endif
i = __ilog2_u64(eirr);
if (i == -1)
return;
- do_IRQ(i);
+ do_IRQ(nlm_irq_to_xirq(node, i));
}
void nlm_send_ipi_single(int logical_cpu, unsigned int action)
{
- int cpu = cpu_logical_map(logical_cpu);
+ int cpu, node;
+ uint64_t picbase;
+
+ cpu = cpu_logical_map(logical_cpu);
+ node = cpu / NLM_CPUS_PER_NODE;
+ picbase = nlm_get_node(node)->picbase;
if (action & SMP_CALL_FUNCTION)
- nlm_pic_send_ipi(nlm_pic_base, cpu, IRQ_IPI_SMP_FUNCTION, 0);
+ nlm_pic_send_ipi(picbase, cpu, IRQ_IPI_SMP_FUNCTION, 0);
if (action & SMP_RESCHEDULE_YOURSELF)
- nlm_pic_send_ipi(nlm_pic_base, cpu, IRQ_IPI_SMP_RESCHEDULE, 0);
+ nlm_pic_send_ipi(picbase, cpu, IRQ_IPI_SMP_RESCHEDULE, 0);
}
void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action)
void nlm_early_init_secondary(int cpu)
{
change_c0_config(CONF_CM_CMASK, 0x3);
- write_c0_ebase((uint32_t)nlm_common_ebase);
#ifdef CONFIG_CPU_XLP
- if (cpu % 4 == 0)
+ /* mmu init, once per core */
+ if (cpu % NLM_THREADS_PER_CORE == 0)
xlp_mmu_init();
#endif
+ write_c0_ebase(nlm_current_node()->ebase);
}
/*
*/
static void __cpuinit nlm_init_secondary(void)
{
- current_cpu_data.core = hard_smp_processor_id() / 4;
+ current_cpu_data.core = hard_smp_processor_id() / NLM_THREADS_PER_CORE;
nlm_smp_irq_init();
}
void nlm_boot_secondary(int logical_cpu, struct task_struct *idle)
{
- unsigned long gp = (unsigned long)task_thread_info(idle);
- unsigned long sp = (unsigned long)__KSTK_TOS(idle);
- int cpu = cpu_logical_map(logical_cpu);
+ int cpu, node;
- nlm_next_sp = sp;
- nlm_next_gp = gp;
+ cpu = cpu_logical_map(logical_cpu);
+ node = cpu / NLM_CPUS_PER_NODE;
+ nlm_next_sp = (unsigned long)__KSTK_TOS(idle);
+ nlm_next_gp = (unsigned long)task_thread_info(idle);
- /* barrier */
+ /* barrier for sp/gp store above */
__sync();
- nlm_pic_send_ipi(nlm_pic_base, cpu, 1, 1);
+ nlm_pic_send_ipi(nlm_get_node(node)->picbase, cpu, 1, 1); /* NMI */
}
void __init nlm_smp_setup(void)
{
unsigned int boot_cpu;
- int num_cpus, i;
+ int num_cpus, i, ncore;
boot_cpu = hard_smp_processor_id();
cpumask_clear(&phys_cpu_present_map);
}
}
+ /* check with the cores we have worken up */
+ for (ncore = 0, i = 0; i < NLM_NR_NODES; i++)
+ ncore += hweight32(nlm_get_node(i)->coremask);
+
pr_info("Phys CPU present map: %lx, possible map %lx\n",
(unsigned long)cpumask_bits(&phys_cpu_present_map)[0],
(unsigned long)cpumask_bits(cpu_possible_mask)[0]);
- pr_info("Detected %i Slave CPU(s)\n", num_cpus);
+ pr_info("Detected (%dc%dt) %d Slave CPU(s)\n", ncore,
+ nlm_threads_per_core, num_cpus);
nlm_set_nmi_handler(nlm_boot_secondary_cpus);
}
int threadmode, i, j;
core0_thr_mask = 0;
- for (i = 0; i < 4; i++)
+ for (i = 0; i < NLM_THREADS_PER_CORE; i++)
if (cpumask_test_cpu(i, wakeup_mask))
core0_thr_mask |= (1 << i);
switch (core0_thr_mask) {
}
/* Verify other cores CPU masks */
- for (i = 0; i < NR_CPUS; i += 4) {
+ for (i = 0; i < NR_CPUS; i += NLM_THREADS_PER_CORE) {
core_thr_mask = 0;
- for (j = 0; j < 4; j++)
+ for (j = 0; j < NLM_THREADS_PER_CORE; j++)
if (cpumask_test_cpu(i + j, wakeup_mask))
core_thr_mask |= (1 << j);
if (core_thr_mask != 0 && core_thr_mask != core0_thr_mask)
#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)
}
}
-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;
unsigned int nlm_get_cpu_frequency(void)
{
- return nlm_get_core_frequency(0);
+ return nlm_get_core_frequency(0, 0);
}
#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();
}
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);
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);
}
}
#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)
}
}
+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 */
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
*/
#include <linux/init.h>
+#include <linux/delay.h>
#include <linux/threads.h>
#include <asm/asm.h>
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;
projects / platform / kernel / linux-rpi.git / commitdiff