diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips64/sgi-ip27/ip27-init.c | 124 |
1 files changed, 123 insertions, 1 deletions
diff --git a/arch/mips64/sgi-ip27/ip27-init.c b/arch/mips64/sgi-ip27/ip27-init.c index e09bc6036..5c0ab4062 100644 --- a/arch/mips64/sgi-ip27/ip27-init.c +++ b/arch/mips64/sgi-ip27/ip27-init.c @@ -1,4 +1,5 @@ #include <linux/kernel.h> +#include <linux/sched.h> #include <linux/mmzone.h> /* for numnodes */ #include <asm/sn/types.h> #include <asm/sn/sn0/addrs.h> @@ -8,16 +9,25 @@ #include <asm/ioc3.h> #include <asm/mipsregs.h> #include <asm/sn/gda.h> +#include <asm/sn/intr.h> +#include <asm/current.h> +#include <asm/smp.h> +#include <asm/processor.h> +#include <asm/sn/launch.h> typedef unsigned long cpumask_t; /* into asm/sn/types.h */ typedef unsigned long cpuid_t; #define CPUMASK_CLRALL(p) (p) = 0 #define CPUMASK_SETB(p, bit) (p) |= 1 << (bit) +#define CPUMASK_CLRB(p, bit) (p) &= ~(1ULL << (bit)) +#define CPUMASK_TSTB(p, bit) ((p) & (1ULL << (bit))) cpumask_t boot_cpumask; +static volatile cpumask_t boot_barrier; hubreg_t region_mask = 0; static int fine_mode = 0; +int maxcpus; cnodeid_t nasid_to_compact_node[MAX_NASIDS]; nasid_t compact_to_nasid_node[MAX_COMPACT_NODES]; @@ -184,7 +194,7 @@ cpuid_t cpu_node_probe(cpumask_t *boot_cpumask, int *numnodes) void mlreset (void) { - int i, maxcpus; + int i; fine_mode = is_fine_dirmode(); @@ -225,3 +235,115 @@ void mlreset (void) } } + +void intr_clear_bits(nasid_t nasid, volatile hubreg_t *pend, int base_level, + char *name) +{ + volatile hubreg_t bits; + int i; + + /* Check pending interrupts */ + if ((bits = HUB_L(pend)) != 0) + for (i = 0; i < N_INTPEND_BITS; i++) + if (bits & (1 << i)) + LOCAL_HUB_CLR_INTR(base_level + i); +} + +void intr_clear_all(nasid_t nasid) +{ + REMOTE_HUB_S(nasid, PI_INT_MASK0_A, 0); + REMOTE_HUB_S(nasid, PI_INT_MASK0_B, 0); + REMOTE_HUB_S(nasid, PI_INT_MASK1_A, 0); + REMOTE_HUB_S(nasid, PI_INT_MASK1_B, 0); + intr_clear_bits(nasid, REMOTE_HUB_ADDR(nasid, PI_INT_PEND0), + INT_PEND0_BASELVL, "INT_PEND0"); + intr_clear_bits(nasid, REMOTE_HUB_ADDR(nasid, PI_INT_PEND1), + INT_PEND1_BASELVL, "INT_PEND1"); +} + +void sn_mp_setup(void) +{ + cnodeid_t cnode; +#if 0 + cpuid_t cpu; +#endif + + for (cnode = 0; cnode < numnodes; cnode++) { +#if 0 + init_platform_nodepda(); +#endif + intr_clear_all(COMPACT_TO_NASID_NODEID(cnode)); + } +#if 0 + for (cpu = 0; cpu < maxcpus; cpu++) { + init_platform_pda(); + } +#endif +} + +void per_cpu_init(void) +{ +#if 0 + cpuid_t cpu = getcpuid(); + cnodeid_t cnode = get_compact_nodeid(); + + intr_init(); + per_hub_init(cnode); + install_cpuintr(cpu); + install_tlbintr(cpu); +#endif +} + +void allowboot(void) +{ + int num_cpus = 0; + cpuid_t cpu; + cnodeid_t cnode; + + sn_mp_setup(); + per_cpu_init(); +#if 0 + bte_lateinit(); + ecc_init(); +#endif + + boot_barrier = boot_cpumask; + /* Launch slaves. */ + for (cpu = 0; cpu < maxcpus; cpu++) { + if (cpu == smp_processor_id()) { + num_cpus++; + /* We're already started, clear our bit */ + CPUMASK_CLRB(boot_barrier, cpu); + continue; + } + + /* Skip holes in CPU space */ + if (CPUMASK_TSTB(boot_cpumask, cpu)) { + num_cpus++; + + /* + * Launch a slave into bootstrap(). + * It doesn't take an argument, and we'll + * take care of sp and gp when we get there. + */ +/* cputonasid/cputoslice not working yet */ + LAUNCH_SLAVE(cputonasid(cpu), cputoslice(cpu), 0, 0, 0, 0); + } + } + +#ifdef LATER + Wait logic goes here. +#endif + for (cnode = 0; cnode < numnodes; cnode++) { +#if 0 + if (cnodetocpu(cnode) == -1) { + printk("Initializing headless hub,cnode %d", cnode); + per_hub_init(cnode); + } +#endif + } +#if 0 + cpu_io_setup(); + init_mfhi_war(); +#endif +} |