diff options
Diffstat (limited to 'arch/mips/sgi-ip27/ip27-init.c')
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-init.c | 110 |
1 files changed, 34 insertions, 76 deletions
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c index 066b33f50bcc..32bcb8d1dd88 100644 --- a/arch/mips/sgi-ip27/ip27-init.c +++ b/arch/mips/sgi-ip27/ip27-init.c @@ -13,53 +13,43 @@ #include <linux/mm.h> #include <linux/export.h> #include <linux/cpumask.h> +#include <asm/bootinfo.h> #include <asm/cpu.h> #include <asm/io.h> #include <asm/pgtable.h> +#include <asm/sgialib.h> #include <asm/time.h> +#include <asm/sn/agent.h> #include <asm/sn/types.h> -#include <asm/sn/sn0/addrs.h> -#include <asm/sn/sn0/hubni.h> -#include <asm/sn/sn0/hubio.h> #include <asm/sn/klconfig.h> #include <asm/sn/ioc3.h> #include <asm/mipsregs.h> #include <asm/sn/gda.h> -#include <asm/sn/hub.h> #include <asm/sn/intr.h> #include <asm/current.h> #include <asm/processor.h> #include <asm/mmu_context.h> #include <asm/thread_info.h> #include <asm/sn/launch.h> -#include <asm/sn/sn_private.h> -#include <asm/sn/sn0/ip27.h> #include <asm/sn/mapped_kernel.h> +#include "ip27-common.h" + #define CPU_NONE (cpuid_t)-1 -static DECLARE_BITMAP(hub_init_mask, MAX_COMPACT_NODES); +static DECLARE_BITMAP(hub_init_mask, MAX_NUMNODES); nasid_t master_nasid = INVALID_NASID; -cnodeid_t nasid_to_compact_node[MAX_NASIDS]; -nasid_t compact_to_nasid_node[MAX_COMPACT_NODES]; -cnodeid_t cpuid_to_compact_node[MAXCPUS]; - -EXPORT_SYMBOL(nasid_to_compact_node); - struct cpuinfo_ip27 sn_cpu_info[NR_CPUS]; EXPORT_SYMBOL_GPL(sn_cpu_info); -extern void pcibr_setup(cnodeid_t); - -static void per_hub_init(cnodeid_t cnode) +static void per_hub_init(nasid_t nasid) { - struct hub_data *hub = hub_data(cnode); - nasid_t nasid = COMPACT_TO_NASID_NODEID(cnode); + struct hub_data *hub = hub_data(nasid); cpumask_set_cpu(smp_processor_id(), &hub->h_cpus); - if (test_and_set_bit(cnode, hub_init_mask)) + if (test_and_set_bit(nasid, hub_init_mask)) return; /* * Set CRB timeout at 5ms, (< PI timeout of 10ms) @@ -67,42 +57,29 @@ static void per_hub_init(cnodeid_t cnode) REMOTE_HUB_S(nasid, IIO_ICTP, 0x800); REMOTE_HUB_S(nasid, IIO_ICTO, 0xff); - hub_rtc_init(cnode); + hub_rtc_init(nasid); -#ifdef CONFIG_REPLICATE_EXHANDLERS - /* - * If this is not a headless node initialization, - * copy over the caliased exception handlers. - */ - if (get_compact_nodeid() == cnode) { - extern char except_vec2_generic, except_vec3_generic; - extern void build_tlb_refill_handler(void); - - memcpy((void *)(CKSEG0 + 0x100), &except_vec2_generic, 0x80); - memcpy((void *)(CKSEG0 + 0x180), &except_vec3_generic, 0x80); - build_tlb_refill_handler(); - memcpy((void *)(CKSEG0 + 0x100), (void *) CKSEG0, 0x80); - memcpy((void *)(CKSEG0 + 0x180), &except_vec3_generic, 0x100); + if (nasid) { + /* copy exception handlers from first node to current node */ + memcpy((void *)NODE_OFFSET_TO_K0(nasid, 0), + (void *)CKSEG0, 0x200); __flush_cache_all(); + /* switch to node local exception handlers */ + REMOTE_HUB_S(nasid, PI_CALIAS_SIZE, PI_CALIAS_SIZE_8K); } -#endif } void per_cpu_init(void) { int cpu = smp_processor_id(); - int slice = LOCAL_HUB_L(PI_CPU_NUM); - cnodeid_t cnode = get_compact_nodeid(); - struct hub_data *hub = hub_data(cnode); - - if (test_and_set_bit(slice, &hub->slice_map)) - return; + nasid_t nasid = get_nasid(); clear_c0_status(ST0_IM); - per_hub_init(cnode); + per_hub_init(nasid); + + pr_info("CPU %d clock is %dMHz.\n", cpu, sn_cpu_info[cpu].p_speed); - cpu_time_init(); install_ipi(); /* Install our NMI handler if symmon hasn't installed one. */ @@ -112,42 +89,13 @@ void per_cpu_init(void) enable_percpu_irq(IP27_HUB_PEND1_IRQ, IRQ_TYPE_NONE); } -/* - * get_nasid() returns the physical node id number of the caller. - */ -nasid_t -get_nasid(void) -{ - return (nasid_t)((LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_NODEID_MASK) - >> NSRI_NODEID_SHFT); -} - -/* - * Map the physical node id to a virtual node id (virtual node ids are contiguous). - */ -cnodeid_t get_compact_nodeid(void) -{ - return NASID_TO_COMPACT_NODEID(get_nasid()); -} - -static inline void ioc3_eth_init(void) -{ - struct ioc3 *ioc3; - nasid_t nid; - - nid = get_nasid(); - ioc3 = (struct ioc3 *) KL_CONFIG_CH_CONS_INFO(nid)->memory_base; - - ioc3->eier = 0; -} - -extern void ip27_reboot_setup(void); - void __init plat_mem_setup(void) { u64 p, e, n_mode; nasid_t nid; + register_smp_ops(&ip27_smp_ops); + ip27_reboot_setup(); /* @@ -182,9 +130,19 @@ void __init plat_mem_setup(void) panic("Kernel compiled for N mode."); #endif - ioc3_eth_init(); - ioport_resource.start = 0; ioport_resource.end = ~0UL; set_io_port_base(IO_BASE); } + +const char *get_system_type(void) +{ + return "SGI Origin"; +} + +void __init prom_init(void) +{ + prom_init_cmdline(fw_arg0, (LONG *)fw_arg1); + prom_meminit(); +} + |
