* Copyright (C) 2000 - 2001 by Kanoj Sarcar (kanoj@sgi.com)
* Copyright (C) 2000 - 2001 by Silicon Graphics, Inc.
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/sched.h>
-#include <linux/mmzone.h> /* for numnodes */
#include <linux/mm.h>
+#include <linux/module.h>
#include <linux/cpumask.h>
#include <asm/cpu.h>
#include <asm/io.h>
#define CPU_NONE (cpuid_t)-1
static DECLARE_BITMAP(hub_init_mask, MAX_COMPACT_NODES);
-static hubreg_t region_mask;
-static int fine_mode;
-static int router_distance;
nasid_t master_nasid = INVALID_NASID;
cnodeid_t nasid_to_compact_node[MAX_NASIDS];
nasid_t compact_to_nasid_node[MAX_COMPACT_NODES];
cnodeid_t cpuid_to_compact_node[MAXCPUS];
-char node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES];
-static hubreg_t get_region(cnodeid_t cnode)
-{
- if (fine_mode)
- return COMPACT_TO_NASID_NODEID(cnode) >> NASID_TO_FINEREG_SHFT;
- else
- return COMPACT_TO_NASID_NODEID(cnode) >> NASID_TO_COARSEREG_SHFT;
-}
-
-static void gen_region_mask(hubreg_t *region_mask, int maxnodes)
-{
- cnodeid_t cnode;
-
- (*region_mask) = 0;
- for (cnode = 0; cnode < maxnodes; cnode++) {
- (*region_mask) |= 1ULL << get_region(cnode);
- }
-}
-
-static int is_fine_dirmode(void)
-{
- return (((LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_REGIONSIZE_MASK)
- >> NSRI_REGIONSIZE_SHFT) & REGIONSIZE_FINE);
-}
+EXPORT_SYMBOL(nasid_to_compact_node);
extern void pcibr_setup(cnodeid_t);
-static __init void per_slice_init(cnodeid_t cnode, int slice)
-{
- struct slice_data *si = hub_data[cnode]->slice + slice;
- int cpu = smp_processor_id();
- int i;
-
- for (i = 0; i < LEVELS_PER_SLICE; i++)
- si->level_to_irq[i] = -1;
- /*
- * Some interrupts are reserved by hardware or by software convention.
- * Mark these as reserved right away so they won't be used accidently
- * later.
- */
- for (i = 0; i <= BASE_PCI_IRQ; i++) {
- __set_bit(i, si->irq_alloc_mask);
- LOCAL_HUB_S(PI_INT_PEND_MOD, i);
- }
-
- __set_bit(IP_PEND0_6_63, si->irq_alloc_mask);
- LOCAL_HUB_S(PI_INT_PEND_MOD, IP_PEND0_6_63);
-
- for (i = NI_BRDCAST_ERR_A; i <= MSC_PANIC_INTR; i++) {
- __set_bit(i, si->irq_alloc_mask + 1);
- LOCAL_HUB_S(PI_INT_PEND_MOD, i);
- }
-
- LOCAL_HUB_L(PI_INT_PEND0);
-
- /*
- * We use this so we can find the local hub's data as fast as only
- * possible.
- */
- cpu_data[cpu].data = si;
-}
-
extern void xtalk_probe_node(cnodeid_t nid);
-void __init per_hub_init(cnodeid_t cnode)
+static void __init per_hub_init(cnodeid_t cnode)
{
- struct hub_data *hub = HUB_DATA(cnode);
+ struct hub_data *hub = hub_data(cnode);
nasid_t nasid = COMPACT_TO_NASID_NODEID(cnode);
- int slice = LOCAL_HUB_L(PI_CPU_NUM);
+ int i;
cpu_set(smp_processor_id(), hub->h_cpus);
- if (!test_and_set_bit(slice, &hub->slice_map))
- per_slice_init(cnode, slice);
-
if (test_and_set_bit(cnode, hub_init_mask))
return;
-
/*
* Set CRB timeout at 5ms, (< PI timeout of 10ms)
*/
* copy over the caliased exception handlers.
*/
if (get_compact_nodeid() == cnode) {
- extern char except_vec0, except_vec1_r10k;
extern char except_vec2_generic, except_vec3_generic;
+ extern void build_tlb_refill_handler(void);
- memcpy((void *)(KSEG0 + 0x100), &except_vec2_generic, 0x80);
- memcpy((void *)(KSEG0 + 0x180), &except_vec3_generic, 0x80);
- memcpy((void *)KSEG0, &except_vec0, 0x80);
- memcpy((void *)KSEG0 + 0x080, &except_vec1_r10k, 0x80);
- memcpy((void *)(KSEG0 + 0x100), (void *) KSEG0, 0x80);
- memcpy((void *)(KSEG0 + 0x180), &except_vec3_generic, 0x100);
+ memcpy((void *)(CKSEG0 + 0x100), &except_vec2_generic, 0x80);
+ memcpy((void *)(CKSEG0 + 0x180), &except_vec3_generic, 0x80);
+ build_tlb_refill_handler();
+ memcpy((void *)(CKSEG0 + 0x100), (void *) CKSEG0, 0x80);
+ memcpy((void *)(CKSEG0 + 0x180), &except_vec3_generic, 0x100);
__flush_cache_all();
}
#endif
-}
-/*
- * get_nasid() returns the physical node id number of the caller.
- */
-nasid_t
-get_nasid(void)
-{
- return (nasid_t)((LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_NODEID_MASK)
- >> NSRI_NODEID_SHFT);
-}
-
-/*
- * Map the physical node id to a virtual node id (virtual node ids are contiguous).
- */
-cnodeid_t get_compact_nodeid(void)
-{
- return NASID_TO_COMPACT_NODEID(get_nasid());
-}
-
-#define rou_rflag rou_flags
-
-static void router_recurse(klrou_t *router_a, klrou_t *router_b, int depth)
-{
- klrou_t *router;
- lboard_t *brd;
- int port;
-
- if (router_a->rou_rflag == 1)
- return;
+ /*
+ * Some interrupts are reserved by hardware or by software convention.
+ * Mark these as reserved right away so they won't be used accidently
+ * later.
+ */
+ for (i = 0; i <= BASE_PCI_IRQ; i++) {
+ __set_bit(i, hub->irq_alloc_mask);
+ LOCAL_HUB_CLR_INTR(INT_PEND0_BASELVL + i);
+ }
- if (depth >= router_distance)
- return;
+ __set_bit(IP_PEND0_6_63, hub->irq_alloc_mask);
+ LOCAL_HUB_S(PI_INT_PEND_MOD, IP_PEND0_6_63);
- router_a->rou_rflag = 1;
-
- for (port = 1; port <= MAX_ROUTER_PORTS; port++) {
- if (router_a->rou_port[port].port_nasid == INVALID_NASID)
- continue;
-
- brd = (lboard_t *)NODE_OFFSET_TO_K0(
- router_a->rou_port[port].port_nasid,
- router_a->rou_port[port].port_offset);
-
- if (brd->brd_type == KLTYPE_ROUTER) {
- router = (klrou_t *)NODE_OFFSET_TO_K0(NASID_GET(brd), brd->brd_compts[0]);
- if (router == router_b) {
- if (depth < router_distance)
- router_distance = depth;
- }
- else
- router_recurse(router, router_b, depth + 1);
- }
+ for (i = NI_BRDCAST_ERR_A; i <= MSC_PANIC_INTR; i++) {
+ __set_bit(i, hub->irq_alloc_mask);
+ LOCAL_HUB_CLR_INTR(INT_PEND1_BASELVL + i);
}
-
- router_a->rou_rflag = 0;
}
-int node_distance(nasid_t nasid_a, nasid_t nasid_b)
+void __init per_cpu_init(void)
{
- klrou_t *router, *router_a = NULL, *router_b = NULL;
- lboard_t *brd, *dest_brd;
- cnodeid_t cnode;
- nasid_t nasid;
- int port;
-
- /* Figure out which routers nodes in question are connected to */
- for (cnode = 0; cnode < numnodes; cnode++) {
- nasid = COMPACT_TO_NASID_NODEID(cnode);
-
- if (nasid == -1) continue;
-
- brd = find_lboard_class((lboard_t *)KL_CONFIG_INFO(nasid),
- KLTYPE_ROUTER);
-
- if (!brd)
- continue;
-
- do {
- if (brd->brd_flags & DUPLICATE_BOARD)
- continue;
-
- router = (klrou_t *)NODE_OFFSET_TO_K0(NASID_GET(brd), brd->brd_compts[0]);
- router->rou_rflag = 0;
-
- for (port = 1; port <= MAX_ROUTER_PORTS; port++) {
- if (router->rou_port[port].port_nasid == INVALID_NASID)
- continue;
-
- dest_brd = (lboard_t *)NODE_OFFSET_TO_K0(
- router->rou_port[port].port_nasid,
- router->rou_port[port].port_offset);
+ int cpu = smp_processor_id();
+ int slice = LOCAL_HUB_L(PI_CPU_NUM);
+ cnodeid_t cnode = get_compact_nodeid();
+ struct hub_data *hub = hub_data(cnode);
+ struct slice_data *si = hub->slice + slice;
+ int i;
- if (dest_brd->brd_type == KLTYPE_IP27) {
- if (dest_brd->brd_nasid == nasid_a)
- router_a = router;
- if (dest_brd->brd_nasid == nasid_b)
- router_b = router;
- }
- }
+ if (test_and_set_bit(slice, &hub->slice_map))
+ return;
- } while ((brd = find_lboard_class(KLCF_NEXT(brd), KLTYPE_ROUTER)));
- }
+ clear_c0_status(ST0_IM);
- if (router_a == NULL) {
- printk("node_distance: router_a NULL\n");
- return -1;
- }
- if (router_b == NULL) {
- printk("node_distance: router_b NULL\n");
- return -1;
- }
+ per_hub_init(cnode);
- if (nasid_a == nasid_b)
- return 0;
+ for (i = 0; i < LEVELS_PER_SLICE; i++)
+ si->level_to_irq[i] = -1;
- if (router_a == router_b)
- return 1;
+ /*
+ * We use this so we can find the local hub's data as fast as only
+ * possible.
+ */
+ cpu_data[cpu].data = si;
- router_distance = 100;
- router_recurse(router_a, router_b, 2);
+ cpu_time_init();
+ install_ipi();
- return router_distance;
-}
+ /* Install our NMI handler if symmon hasn't installed one. */
+ install_cpu_nmi_handler(cputoslice(cpu));
-static void init_topology_matrix(void)
-{
- nasid_t nasid, nasid2;
- cnodeid_t row, col;
-
- for (row = 0; row < MAX_COMPACT_NODES; row++)
- for (col = 0; col < MAX_COMPACT_NODES; col++)
- node_distances[row][col] = -1;
-
- for (row = 0; row < numnodes; row++) {
- nasid = COMPACT_TO_NASID_NODEID(row);
- for (col = 0; col < numnodes; col++) {
- nasid2 = COMPACT_TO_NASID_NODEID(col);
- node_distances[row][col] = node_distance(nasid, nasid2);
- }
- }
+ set_c0_status(SRB_DEV0 | SRB_DEV1);
}
-static void dump_topology(void)
+/*
+ * get_nasid() returns the physical node id number of the caller.
+ */
+nasid_t
+get_nasid(void)
{
- nasid_t nasid;
- cnodeid_t cnode;
- lboard_t *brd, *dest_brd;
- int port;
- int router_num = 0;
- klrou_t *router;
- cnodeid_t row, col;
-
- printk("************** Topology ********************\n");
-
- printk(" ");
- for (col = 0; col < numnodes; col++)
- printk("%02d ", col);
- printk("\n");
- for (row = 0; row < numnodes; row++) {
- printk("%02d ", row);
- for (col = 0; col < numnodes; col++)
- printk("%2d ", node_distances[row][col]);
- printk("\n");
- }
-
- for (cnode = 0; cnode < numnodes; cnode++) {
- nasid = COMPACT_TO_NASID_NODEID(cnode);
-
- if (nasid == -1) continue;
-
- brd = find_lboard_class((lboard_t *)KL_CONFIG_INFO(nasid),
- KLTYPE_ROUTER);
-
- if (!brd)
- continue;
-
- do {
- if (brd->brd_flags & DUPLICATE_BOARD)
- continue;
- printk("Router %d:", router_num);
- router_num++;
-
- router = (klrou_t *)NODE_OFFSET_TO_K0(NASID_GET(brd), brd->brd_compts[0]);
-
- for (port = 1; port <= MAX_ROUTER_PORTS; port++) {
- if (router->rou_port[port].port_nasid == INVALID_NASID)
- continue;
-
- dest_brd = (lboard_t *)NODE_OFFSET_TO_K0(
- router->rou_port[port].port_nasid,
- router->rou_port[port].port_offset);
-
- if (dest_brd->brd_type == KLTYPE_IP27)
- printk(" %d", dest_brd->brd_nasid);
- if (dest_brd->brd_type == KLTYPE_ROUTER)
- printk(" r");
- }
- printk("\n");
-
- } while ( (brd = find_lboard_class(KLCF_NEXT(brd), KLTYPE_ROUTER)) );
- }
+ return (nasid_t)((LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_NODEID_MASK)
+ >> NSRI_NODEID_SHFT);
}
-void mlreset(void)
+/*
+ * Map the physical node id to a virtual node id (virtual node ids are contiguous).
+ */
+cnodeid_t get_compact_nodeid(void)
{
- int i;
-
- master_nasid = get_nasid();
- fine_mode = is_fine_dirmode();
-
- /*
- * Probe for all CPUs - this creates the cpumask and sets up the
- * mapping tables. We need to do this as early as possible.
- */
-#ifdef CONFIG_SMP
- cpu_node_probe();
-#endif
-
- init_topology_matrix();
- dump_topology();
-
- gen_region_mask(®ion_mask, numnodes);
-
- setup_replication_mask(numnodes);
-
- /*
- * Set all nodes' calias sizes to 8k
- */
- for (i = 0; i < numnodes; i++) {
- nasid_t nasid;
-
- nasid = COMPACT_TO_NASID_NODEID(i);
-
- /*
- * Always have node 0 in the region mask, otherwise
- * CALIAS accesses get exceptions since the hub
- * thinks it is a node 0 address.
- */
- REMOTE_HUB_S(nasid, PI_REGION_PRESENT, (region_mask | 1));
-#ifdef CONFIG_REPLICATE_EXHANDLERS
- REMOTE_HUB_S(nasid, PI_CALIAS_SIZE, PI_CALIAS_SIZE_8K);
-#else
- REMOTE_HUB_S(nasid, PI_CALIAS_SIZE, PI_CALIAS_SIZE_0);
-#endif
-
-#ifdef LATER
- /*
- * Set up all hubs to have a big window pointing at
- * widget 0. Memory mode, widget 0, offset 0
- */
- REMOTE_HUB_S(nasid, IIO_ITTE(SWIN0_BIGWIN),
- ((HUB_PIO_MAP_TO_MEM << IIO_ITTE_IOSP_SHIFT) |
- (0 << IIO_ITTE_WIDGET_SHIFT)));
-#endif
- }
+ return NASID_TO_COMPACT_NODEID(get_nasid());
}
/* Extracted from the IOC3 meta driver. FIXME. */
ioc3->eier = 0;
}
-void __init per_cpu_init(void)
-{
- cnodeid_t cnode = get_compact_nodeid();
- int cpu = smp_processor_id();
-
- clear_c0_status(ST0_IM);
- per_hub_init(cnode);
- cpu_time_init();
- install_ipi();
- /* Install our NMI handler if symmon hasn't installed one. */
- install_cpu_nmi_handler(cputoslice(cpu));
- set_c0_status(SRB_DEV0 | SRB_DEV1);
-}
-
extern void ip27_setup_console(void);
extern void ip27_time_init(void);
extern void ip27_reboot_setup(void);
-static int __init ip27_setup(void)
+void __init plat_mem_setup(void)
{
hubreg_t p, e, n_mode;
nasid_t nid;
*/
n_mode = LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_MORENODES_MASK;
printk("Machine is in %c mode.\n", n_mode ? 'N' : 'M');
-#ifdef CONFIG_SGI_SN0_N_MODE
+#ifdef CONFIG_SGI_SN_N_MODE
if (!n_mode)
panic("Kernel compiled for M mode.");
#else
set_io_port_base(IO_BASE);
board_time_init = ip27_time_init;
-
- return 0;
}
-
-early_initcall(ip27_setup);
git://git.onelab.eu / linux-2.6.git / blobdiff