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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/mips/sgi-ip27/ip27-klconfig.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/mips/sgi-ip27/ip27-klconfig.c')
-rw-r--r--kernel/arch/mips/sgi-ip27/ip27-klconfig.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/kernel/arch/mips/sgi-ip27/ip27-klconfig.c b/kernel/arch/mips/sgi-ip27/ip27-klconfig.c
new file mode 100644
index 000000000..c873d62ff
--- /dev/null
+++ b/kernel/arch/mips/sgi-ip27/ip27-klconfig.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 1999, 2000 Ralf Baechle (ralf@gnu.org)
+ * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
+ */
+#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;
+}