MIPS: SGI-IP27: use cpu physid already present while scanning for CPUs

By using cpu physid already present when scanning for CPUs
get_cpu_slice() is unsued and can be removed together with two
other then used functions.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

diff --git a/arch/mips/include/asm/sn/arch.h b/arch/mips/include/asm/sn/arch.h
index f7d3273..f8b34d3 100644 (file)
--- a/arch/mips/include/asm/sn/arch.h
+++ b/arch/mips/include/asm/sn/arch.h
@@ -26,6 +26,5 @@
 #define INVALID_PARTID         (partid_t)-1
 
 extern nasid_t get_nasid(void);
-extern int get_cpu_slice(cpuid_t);
 
 #endif /* _ASM_SN_ARCH_H */

diff --git a/arch/mips/include/asm/sn/klconfig.h b/arch/mips/include/asm/sn/klconfig.h
index 467c313..117f85e 100644 (file)
--- a/arch/mips/include/asm/sn/klconfig.h
+++ b/arch/mips/include/asm/sn/klconfig.h
@@ -889,10 +889,6 @@ typedef union {
 extern lboard_t *find_lboard(lboard_t *start, unsigned char type);
 extern klinfo_t *find_component(lboard_t *brd, klinfo_t *kli, unsigned char type);
 extern klinfo_t *find_first_component(lboard_t *brd, unsigned char type);
-extern klcpu_t *nasid_slice_to_cpuinfo(nasid_t, int);
 extern lboard_t *find_lboard_class(lboard_t *start, unsigned char brd_class);
 
-
-extern klcpu_t *sn_get_cpuinfo(cpuid_t cpu);
-
 #endif /* _ASM_SN_KLCONFIG_H */

diff --git a/arch/mips/sgi-ip27/ip27-klconfig.c b/arch/mips/sgi-ip27/ip27-klconfig.c
index 6cb2160..81a1646 100644 (file)
--- a/arch/mips/sgi-ip27/ip27-klconfig.c
+++ b/arch/mips/sgi-ip27/ip27-klconfig.c
@@ -72,54 +72,3 @@ lboard_t *find_lboard_class(lboard_t *start, unsigned char brd_type)
        /* Didn't find it. */
        return (lboard_t *)NULL;
 }
-
-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;
-
-       if (!(cpu < MAXCPUS)) {
-               printk("sn_get_cpuinfo: illegal cpuid 0x%lx\n", cpu);
-               return NULL;
-       }
-
-       nasid = cputonasid(cpu);
-       if (nasid  == 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;
-}

diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index faa0244..de3711e 100644 (file)
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -29,22 +29,11 @@
 
 #include "ip27-common.h"
 
-/*
- * Takes as first input the PROM assigned cpu id, and the kernel
- * assigned cpu id as the second.
- */
-static void alloc_cpupda(nasid_t nasid, cpuid_t cpu, int cpunum)
-{
-       cputonasid(cpunum) = nasid;
-       cputoslice(cpunum) = get_cpu_slice(cpu);
-}
-
-static int do_cpumask(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);
@@ -55,13 +44,13 @@ static int do_cpumask(nasid_t nasid, int highest)
                        cpuid = acpu->cpu_info.virtid;
                        /* 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(nasid, cpuid, tot_cpus_found);
+                               cputonasid(cpus_found) = nasid;
+                               cputoslice(cpus_found) = acpu->cpu_info.physid;
                                cpus_found++;
-                               tot_cpus_found++;
                        }
                        acpu = (klcpu_t *)find_component(brd, (klinfo_t *)acpu,
                                                                KLSTRUCT_CPU);
@@ -87,7 +76,7 @@ void cpu_node_probe(void)
                if (nasid == INVALID_NASID)
                        break;
                node_set_online(nasid);
-               highest = do_cpumask(nasid, highest);
+               highest = node_scan_cpus(nasid, highest);
        }
 
        printk("Discovered %d cpus on %d nodes\n", highest + 1, num_online_nodes());
@@ -180,7 +169,8 @@ static void __init ip27_smp_setup(void)
        /*
         * PROM sets up system, that boot cpu is always first CPU on nasid 0
         */
-       alloc_cpupda(0, 0, 0);
+       cputonasid(0) = 0;
+       cputoslice(0) = LOCAL_HUB_L(PI_CPU_NUM);
 }
 
 static void __init ip27_prepare_cpus(unsigned int max_cpus)