1 files changed, 135 insertions, 0 deletions

diff --git a/arch/mips/sgi-ip27/ip27-klconfig.c b/arch/mips/sgi-ip27/ip27-klconfig.c
new file mode 100644
index 000000000000..dd830b3670d1
--- /dev/null
+++ b/arch/mips/sgi-ip27/ip27-klconfig.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 1999, 2000 Ralf Baechle (ralf@gnu.org)
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+#include <linux/param.h>
+#include <linux/timex.h>
+#include <linux/mm.h>
+
+#include <asm/sn/klconfig.h>
+#include <asm/sn/arch.h>
+#include <asm/sn/gda.h>
+
+klinfo_t *find_component(lboard_t *brd, klinfo_t *kli, unsigned char struct_type)
+{
+        int index, j;
+
+        if (kli == (klinfo_t *)NULL) {
+                index = 0;
+        } else {
+                for (j = 0; j < KLCF_NUM_COMPS(brd); j++)
+                        if (kli == KLCF_COMP(brd, j))
+                                break;
+                index = j;
+                if (index == KLCF_NUM_COMPS(brd)) {
+                        printk("find_component: Bad pointer: 0x%p\n", kli);
+                        return (klinfo_t *)NULL;
+                }
+                index++;                /* next component */
+        }
+
+        for (; index < KLCF_NUM_COMPS(brd); index++) {
+                kli = KLCF_COMP(brd, index);
+                if (KLCF_COMP_TYPE(kli) == struct_type)
+                        return kli;
+        }
+
+        /* Didn't find it. */
+        return (klinfo_t *)NULL;
+}
+
+klinfo_t *find_first_component(lboard_t *brd, unsigned char struct_type)
+{
+        return find_component(brd, (klinfo_t *)NULL, struct_type);
+}
+
+lboard_t * find_lboard(lboard_t *start, unsigned char brd_type)
+{
+        /* Search all boards stored on this node. */
+        while (start) {
+                if (start->brd_type == brd_type)
+                        return start;
+                start = KLCF_NEXT(start);
+        }
+        /* Didn't find it. */
+        return (lboard_t *)NULL;
+}
+
+lboard_t * find_lboard_class(lboard_t *start, unsigned char brd_type)
+{
+        /* Search all boards stored on this node. */
+        while (start) {
+                if (KLCLASS(start->brd_type) == KLCLASS(brd_type))
+                        return start;
+                start = KLCF_NEXT(start);
+        }
+
+        /* Didn't find it. */
+        return (lboard_t *)NULL;
+}
+
+cnodeid_t get_cpu_cnode(cpuid_t cpu)
+{
+        return CPUID_TO_COMPACT_NODEID(cpu);
+}
+
+klcpu_t * nasid_slice_to_cpuinfo(nasid_t nasid, int slice)
+{
+        lboard_t *brd;
+        klcpu_t *acpu;
+
+        if (!(brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_IP27)))
+                return (klcpu_t *)NULL;
+
+        if (!(acpu = (klcpu_t *)find_first_component(brd, KLSTRUCT_CPU)))
+                return (klcpu_t *)NULL;
+
+        do {
+                if ((acpu->cpu_info.physid) == slice)
+                        return acpu;
+        } while ((acpu = (klcpu_t *)find_component(brd, (klinfo_t *)acpu,
+                                                                KLSTRUCT_CPU)));
+        return (klcpu_t *)NULL;
+}
+
+klcpu_t * sn_get_cpuinfo(cpuid_t cpu)
+{
+        nasid_t nasid;
+        int slice;
+        klcpu_t *acpu;
+        gda_t *gdap = GDA;
+        cnodeid_t cnode;
+
+        if (!(cpu < MAXCPUS)) {
+                printk("sn_get_cpuinfo: illegal cpuid 0x%lx\n", cpu);
+                return NULL;
+        }
+
+        cnode = get_cpu_cnode(cpu);
+        if (cnode == INVALID_CNODEID)
+                return NULL;
+
+        if ((nasid = gdap->g_nasidtable[cnode]) == INVALID_NASID)
+                return NULL;
+
+        for (slice = 0; slice < CPUS_PER_NODE; slice++) {
+                acpu = nasid_slice_to_cpuinfo(nasid, slice);
+                if (acpu && acpu->cpu_info.virtid == cpu)
+                        return acpu;
+        }
+        return NULL;
+}
+
+int get_cpu_slice(cpuid_t cpu)
+{
+        klcpu_t *acpu;
+
+        if ((acpu = sn_get_cpuinfo(cpu)) == NULL)
+                return -1;
+        return acpu->cpu_info.physid;
+}