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authorMark Goodwin <markgw@sgi.com>2005-04-25 13:21:54 -0700
committerTony Luck <tony.luck@intel.com>2005-04-25 13:21:54 -0700
commit0985ea8f2db87d32b0b750229889e55fed7458ef (patch)
tree76e292f65c01b5f298a7a8d5a03287229c4be3a3 /arch
parenta37d98f6a98254c05315e0bbf45c4602942d14b1 (diff)
[IA64-SGI] Altix SN add support for slots in geoid_t locator
This patch against ia64-test-2.6.12 is needed for forthcoming Altix chipsets. It renames geoid_any_t to geoid_common_t and splits the 8bit 'slab' field into two 4bit fields for 'slab' and 'slot'. Similar changes in the Altix SAL will retain backward compatibility for old kernels. Signed-off-by: Mark Goodwin <markgw@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/sn/kernel/sn2/sn_hwperf.c71
1 files changed, 24 insertions, 47 deletions
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index e731fcb95f9..833e700fdac 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -116,7 +116,7 @@ static int sn_hwperf_geoid_to_cnode(char *location)
module_id = geo_module(geoid);
this_rack = MODULE_GET_RACK(module_id);
this_bay = MODULE_GET_BPOS(module_id);
- this_slot = 0; /* XXX */
+ this_slot = geo_slot(geoid);
this_slab = geo_slab(geoid);
if (rack == this_rack && bay == this_bay &&
slot == this_slot && slab == this_slab) {
@@ -176,20 +176,27 @@ static const char *sn_hwperf_get_slabname(struct sn_hwperf_object_info *obj,
static void print_pci_topology(struct seq_file *s,
struct sn_hwperf_object_info *obj, int *ordinal,
- char *pci_topo_buf, int len)
+ u64 rack, u64 bay, u64 slot, u64 slab)
{
char *p1;
char *p2;
-
- for (p1=pci_topo_buf; *p1 && p1 < pci_topo_buf + len;) {
- if (!(p2 = strchr(p1, '\n')))
- break;
- *p2 = '\0';
- seq_printf(s, "pcibus %d %s-%s\n",
- *ordinal, obj->location, p1);
- (*ordinal)++;
- p1 = p2 + 1;
+ char *pg;
+
+ if (!(pg = (char *)get_zeroed_page(GFP_KERNEL)))
+ return; /* ignore */
+ if (ia64_sn_ioif_get_pci_topology(rack, bay, slot, slab,
+ __pa(pg), PAGE_SIZE) == SN_HWPERF_OP_OK) {
+ for (p1=pg; *p1 && p1 < pg + PAGE_SIZE;) {
+ if (!(p2 = strchr(p1, '\n')))
+ break;
+ *p2 = '\0';
+ seq_printf(s, "pcibus %d %s-%s\n",
+ *ordinal, obj->location, p1);
+ (*ordinal)++;
+ p1 = p2 + 1;
+ }
}
+ free_page((unsigned long)pg);
}
static int sn_topology_show(struct seq_file *s, void *d)
@@ -218,9 +225,7 @@ static int sn_topology_show(struct seq_file *s, void *d)
u8 region_size;
u16 nasid_mask;
int nasid_msb;
- char *pci_topo_buf;
int pci_bus_ordinal = 0;
- static int pci_topo_buf_len = 256;
if (obj == objs) {
seq_printf(s, "# sn_topology version 2\n");
@@ -299,41 +304,13 @@ static int sn_topology_show(struct seq_file *s, void *d)
/*
* PCI busses attached to this node, if any
*/
- do {
- if (sn_hwperf_location_to_bpos(obj->location,
- &rack, &bay, &slot, &slab)) {
- break;
- }
-
- if (!(pci_topo_buf = vmalloc(pci_topo_buf_len))) {
- printk("sn_topology_show: vmalloc failed\n");
- break;
- }
+ if (sn_hwperf_location_to_bpos(obj->location,
+ &rack, &bay, &slot, &slab)) {
+ /* export pci bus info */
+ print_pci_topology(s, obj, &pci_bus_ordinal,
+ rack, bay, slot, slab);
- e = ia64_sn_ioif_get_pci_topology(rack, bay, slot, slab,
- pci_topo_buf, pci_topo_buf_len);
-
- switch (e) {
- case SALRET_NOT_IMPLEMENTED:
- case SALRET_INVALID_ARG:
- /* ignore, don't print anything */
- e = SN_HWPERF_OP_OK;
- break;
-
- case SALRET_ERROR:
- /* retry with a bigger buffer */
- pci_topo_buf_len += 256;
- break;
-
- case SN_HWPERF_OP_OK:
- default:
- /* export pci bus info */
- print_pci_topology(s, obj, &pci_bus_ordinal,
- pci_topo_buf, pci_topo_buf_len);
- break;
- }
- vfree(pci_topo_buf);
- } while (e != SN_HWPERF_OP_OK && pci_topo_buf_len < 0x200000);
+ }
}
if (obj->ports) {