diff options
Diffstat (limited to 'arch/mips/sgi-ip27/ip27-smp.c')
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-smp.c | 103 |
1 files changed, 24 insertions, 79 deletions
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c index 20b81209c6b8..5d2652a1d35a 100644 --- a/arch/mips/sgi-ip27/ip27-smp.c +++ b/arch/mips/sgi-ip27/ip27-smp.c @@ -15,55 +15,22 @@ #include <asm/page.h> #include <asm/processor.h> #include <asm/ptrace.h> +#include <asm/sn/agent.h> #include <asm/sn/arch.h> #include <asm/sn/gda.h> #include <asm/sn/intr.h> #include <asm/sn/klconfig.h> #include <asm/sn/launch.h> #include <asm/sn/mapped_kernel.h> -#include <asm/sn/sn_private.h> #include <asm/sn/types.h> -#include <asm/sn/sn0/hubpi.h> -#include <asm/sn/sn0/hubio.h> -#include <asm/sn/sn0/ip27.h> -/* - * Takes as first input the PROM assigned cpu id, and the kernel - * assigned cpu id as the second. - */ -static void alloc_cpupda(cpuid_t cpu, int cpunum) -{ - cnodeid_t node = get_cpu_cnode(cpu); - nasid_t nasid = COMPACT_TO_NASID_NODEID(node); - - cputonasid(cpunum) = nasid; - sn_cpu_info[cpunum].p_nodeid = node; - cputoslice(cpunum) = get_cpu_slice(cpu); -} - -static nasid_t get_actual_nasid(lboard_t *brd) -{ - klhub_t *hub; - - if (!brd) - return INVALID_NASID; - - /* find out if we are a completely disabled brd. */ - hub = (klhub_t *)find_first_component(brd, KLSTRUCT_HUB); - if (!hub) - return INVALID_NASID; - if (!(hub->hub_info.flags & KLINFO_ENABLE)) /* disabled node brd */ - return hub->hub_info.physid; - else - return brd->brd_nasid; -} +#include "ip27-common.h" -static int do_cpumask(cnodeid_t cnode, nasid_t nasid, int highest) +static int node_scan_cpus(nasid_t nasid, int highest) { - static int tot_cpus_found = 0; + static int cpus_found; lboard_t *brd; klcpu_t *acpu; - int cpus_found = 0; cpuid_t cpuid; brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_IP27); @@ -72,18 +39,17 @@ static int do_cpumask(cnodeid_t cnode, nasid_t nasid, int highest) acpu = (klcpu_t *)find_first_component(brd, KLSTRUCT_CPU); while (acpu) { cpuid = acpu->cpu_info.virtid; - /* cnode is not valid for completely disabled brds */ - if (get_actual_nasid(brd) == brd->brd_nasid) - cpuid_to_compact_node[cpuid] = cnode; - if (cpuid > highest) - highest = cpuid; /* Only let it join in if it's marked enabled */ if ((acpu->cpu_info.flags & KLINFO_ENABLE) && - (tot_cpus_found != NR_CPUS)) { + (cpus_found != NR_CPUS)) { + if (cpuid > highest) + highest = cpuid; set_cpu_possible(cpuid, true); - alloc_cpupda(cpuid, tot_cpus_found); + cputonasid(cpus_found) = nasid; + cputoslice(cpus_found) = acpu->cpu_info.physid; + sn_cpu_info[cpus_found].p_speed = + acpu->cpu_speed; cpus_found++; - tot_cpus_found++; } acpu = (klcpu_t *)find_component(brd, (klinfo_t *)acpu, KLSTRUCT_CPU); @@ -103,29 +69,13 @@ void cpu_node_probe(void) int i, highest = 0; gda_t *gdap = GDA; - /* - * Initialize the arrays to invalid nodeid (-1) - */ - for (i = 0; i < MAX_COMPACT_NODES; i++) - compact_to_nasid_node[i] = INVALID_NASID; - for (i = 0; i < MAX_NASIDS; i++) - nasid_to_compact_node[i] = INVALID_CNODEID; - for (i = 0; i < MAXCPUS; i++) - cpuid_to_compact_node[i] = INVALID_CNODEID; - - /* - * MCD - this whole "compact node" stuff can probably be dropped, - * as we can handle sparse numbering now - */ nodes_clear(node_online_map); - for (i = 0; i < MAX_COMPACT_NODES; i++) { + for (i = 0; i < MAX_NUMNODES; i++) { nasid_t nasid = gdap->g_nasidtable[i]; if (nasid == INVALID_NASID) break; - compact_to_nasid_node[i] = nasid; - nasid_to_compact_node[nasid] = i; - node_set_online(num_online_nodes()); - highest = do_cpumask(i, nasid, highest); + node_set_online(nasid); + highest = node_scan_cpus(nasid, highest); } printk("Discovered %d cpus on %d nodes\n", highest + 1, num_online_nodes()); @@ -162,11 +112,10 @@ static void ip27_send_ipi_single(int destid, unsigned int action) irq += cputoslice(destid); /* - * Convert the compact hub number to the NASID to get the correct - * part of the address space. Then set the interrupt bit associated - * with the CPU we want to send the interrupt to. + * Set the interrupt bit associated with the CPU we want to + * send the interrupt to. */ - REMOTE_HUB_SEND_INTR(COMPACT_TO_NASID_NODEID(cpu_to_node(destid)), irq); + REMOTE_HUB_SEND_INTR(cpu_to_node(destid), irq); } static void ip27_send_ipi_mask(const struct cpumask *mask, unsigned int action) @@ -184,8 +133,6 @@ static void ip27_init_cpu(void) static void ip27_smp_finish(void) { - extern void hub_rt_clock_event_init(void); - hub_rt_clock_event_init(); local_irq_enable(); } @@ -208,23 +155,21 @@ static int ip27_boot_secondary(int cpu, struct task_struct *idle) static void __init ip27_smp_setup(void) { - cnodeid_t cnode; + nasid_t nasid; - for_each_online_node(cnode) { - if (cnode == 0) + for_each_online_node(nasid) { + if (nasid == 0) continue; - intr_clear_all(COMPACT_TO_NASID_NODEID(cnode)); + intr_clear_all(nasid); } replicate_kernel_text(); /* - * Assumption to be fixed: we're always booted on logical / physical - * processor 0. While we're always running on logical processor 0 - * this still means this is physical processor zero; it might for - * example be disabled in the firmware. + * PROM sets up system, that boot cpu is always first CPU on nasid 0 */ - alloc_cpupda(0, 0); + cputonasid(0) = 0; + cputoslice(0) = LOCAL_HUB_L(PI_CPU_NUM); } static void __init ip27_prepare_cpus(unsigned int max_cpus) |
