struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
nasid_t nasid, int slice)
{
int vector;
int cpuid;
#ifdef CONFIG_SMP
int cpuphys;
#endif
int64_t bridge;
int local_widget, status;
nasid_t local_nasid;
struct sn_irq_info *new_irq_info;
struct sn_pcibus_provider *pci_provider;
bridge = (u64) sn_irq_info->irq_bridge;
if (!bridge) {
return NULL; /* irq is not a device interrupt */
}
local_nasid = NASID_GET(bridge);
if (local_nasid & 1)
local_widget = TIO_SWIN_WIDGETNUM(bridge);
else
local_widget = SWIN_WIDGETNUM(bridge);
vector = sn_irq_info->irq_irq;
/* Make use of SAL_INTR_REDIRECT if PROM supports it */
status = sn_intr_redirect(local_nasid, local_widget, sn_irq_info, nasid, slice);
if (!status) {
new_irq_info = sn_irq_info;
goto finish_up;
}
/*
* PROM does not support SAL_INTR_REDIRECT, or it failed.
* Revert to old method.
*/
new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
if (new_irq_info == NULL)
return NULL;
memcpy(new_irq_info, sn_irq_info, sizeof(struct sn_irq_info));
/* Free the old PROM new_irq_info structure */
sn_intr_free(local_nasid, local_widget, new_irq_info);
unregister_intr_pda(new_irq_info);
/* allocate a new PROM new_irq_info struct */
status = sn_intr_alloc(local_nasid, local_widget,
new_irq_info, vector,
nasid, slice);
/* SAL call failed */
if (status) {
kfree(new_irq_info);
return NULL;
}
register_intr_pda(new_irq_info);
spin_lock(&sn_irq_info_lock);
list_replace_rcu(&sn_irq_info->list, &new_irq_info->list);
spin_unlock(&sn_irq_info_lock);
call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
finish_up:
/* Update kernels new_irq_info with new target info */
cpuid = nasid_slice_to_cpuid(new_irq_info->irq_nasid,
new_irq_info->irq_slice);
new_irq_info->irq_cpuid = cpuid;
pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type];
/*
* If this represents a line interrupt, target it. If it's
* an msi (irq_int_bit < 0), it's already targeted.
*/
if (new_irq_info->irq_int_bit >= 0 &&
pci_provider && pci_provider->target_interrupt)
(pci_provider->target_interrupt)(new_irq_info);
#ifdef CONFIG_SMP
cpuphys = cpu_physical_id(cpuid);
set_irq_affinity_info((vector & 0xff), cpuphys, 0);
#endif
return new_irq_info;
}
/* ARGSUSED */
static void __init
klhwg_add_node(vertex_hdl_t hwgraph_root, cnodeid_t cnode)
{
nasid_t nasid;
lboard_t *brd;
klhub_t *hub;
vertex_hdl_t node_vertex = NULL;
char path_buffer[100];
int rv;
char *s;
int board_disabled = 0;
klcpu_t *cpu;
vertex_hdl_t cpu_dir;
nasid = cnodeid_to_nasid(cnode);
brd = find_lboard_any((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_SNIA);
ASSERT(brd);
/* Generate a hardware graph path for this board. */
board_to_path(brd, path_buffer);
rv = hwgraph_path_add(hwgraph_root, path_buffer, &node_vertex);
if (rv != GRAPH_SUCCESS) {
printk("Node vertex creation failed. Path == %s", path_buffer);
return;
}
HWGRAPH_DEBUG(__FILE__, __FUNCTION__, __LINE__, node_vertex, NULL, "Created path for SHUB node.\n");
hub = (klhub_t *)find_first_component(brd, KLSTRUCT_HUB);
ASSERT(hub);
if(hub->hub_info.flags & KLINFO_ENABLE)
board_disabled = 0;
else
board_disabled = 1;
if(!board_disabled) {
mark_nodevertex_as_node(node_vertex, cnode);
s = dev_to_name(node_vertex, path_buffer, sizeof(path_buffer));
NODEPDA(cnode)->hwg_node_name =
kmalloc(strlen(s) + 1, GFP_KERNEL);
if (NODEPDA(cnode)->hwg_node_name <= 0) {
printk("%s: no memory\n", __FUNCTION__);
return;
}
strcpy(NODEPDA(cnode)->hwg_node_name, s);
hubinfo_set(node_vertex, NODEPDA(cnode)->pdinfo);
NODEPDA(cnode)->slotdesc = brd->brd_slot;
NODEPDA(cnode)->geoid = brd->brd_geoid;
NODEPDA(cnode)->module = module_lookup(geo_module(brd->brd_geoid));
klhwg_add_hub(node_vertex, hub, cnode);
}
/*
* If there's at least 1 CPU, add a "cpu" directory to represent
* the collection of all CPUs attached to this node.
*/
cpu = (klcpu_t *)find_first_component(brd, KLSTRUCT_CPU);
if (cpu) {
graph_error_t rv;
rv = hwgraph_path_add(node_vertex, EDGE_LBL_CPU, &cpu_dir);
if (rv != GRAPH_SUCCESS) {
printk("klhwg_add_node: Cannot create CPU directory\n");
return;
}
HWGRAPH_DEBUG(__FILE__, __FUNCTION__, __LINE__, cpu_dir, NULL, "Created cpu directiry on SHUB node.\n");
}
while (cpu) {
cpuid_t cpu_id;
cpu_id = nasid_slice_to_cpuid(nasid,cpu->cpu_info.physid);
if (cpu_online(cpu_id))
klhwg_add_cpu(node_vertex, cnode, cpu);
else
klhwg_add_disabled_cpu(node_vertex, cnode, cpu, brd->brd_slot);
cpu = (klcpu_t *)
find_component(brd, (klinfo_t *)cpu, KLSTRUCT_CPU);
}
}
