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authorMark Goodwin <markgw@sgi.com>2005-08-16 00:50:00 -0700
committerTony Luck <tony.luck@intel.com>2005-08-24 16:23:39 -0700
commitecc3c30ae39c4d3cbf249a1ebd599465e0e25708 (patch)
tree0a5ee4e1400fc05abc230e99e4d633d9f27304bd /arch/ia64/sn/kernel
parent470ceb05d9a2b4d61c19fac615a79e56e8401565 (diff)
[IA64] - SGI SN hwperf enhancements - export_pci_topology
Bugfix to export PCI topology information in /proc/sgi_sn/sn_topology. Signed-off-by: Mark Goodwin <markgw@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/sn/kernel')
-rw-r--r--arch/ia64/sn/kernel/sn2/sn_hwperf.c50
1 files changed, 16 insertions, 34 deletions
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
index 833e700fdac..58e48fdf5b4 100644
--- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c
+++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -174,29 +174,22 @@ static const char *sn_hwperf_get_slabname(struct sn_hwperf_object_info *obj,
return slabname;
}
-static void print_pci_topology(struct seq_file *s,
- struct sn_hwperf_object_info *obj, int *ordinal,
- u64 rack, u64 bay, u64 slot, u64 slab)
+static void print_pci_topology(struct seq_file *s)
{
- char *p1;
- char *p2;
- 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;
- }
+ char *p;
+ size_t sz;
+ int e;
+
+ for (sz = PAGE_SIZE; sz < 16 * PAGE_SIZE; sz += PAGE_SIZE) {
+ if (!(p = (char *)kmalloc(sz, GFP_KERNEL)))
+ break;
+ e = ia64_sn_ioif_get_pci_topology(__pa(p), sz);
+ if (e == SALRET_OK)
+ seq_puts(s, p);
+ kfree(p);
+ if (e == SALRET_OK || e == SALRET_NOT_IMPLEMENTED)
+ break;
}
- free_page((unsigned long)pg);
}
static int sn_topology_show(struct seq_file *s, void *d)
@@ -215,7 +208,6 @@ static int sn_topology_show(struct seq_file *s, void *d)
struct sn_hwperf_object_info *p;
struct sn_hwperf_object_info *obj = d; /* this object */
struct sn_hwperf_object_info *objs = s->private; /* all objects */
- int rack, bay, slot, slab;
u8 shubtype;
u8 system_size;
u8 sharing_size;
@@ -225,7 +217,6 @@ static int sn_topology_show(struct seq_file *s, void *d)
u8 region_size;
u16 nasid_mask;
int nasid_msb;
- int pci_bus_ordinal = 0;
if (obj == objs) {
seq_printf(s, "# sn_topology version 2\n");
@@ -253,6 +244,8 @@ static int sn_topology_show(struct seq_file *s, void *d)
shubtype ? "shub2" : "shub1",
(u64)nasid_mask << nasid_shift, nasid_msb, nasid_shift,
system_size, sharing_size, coher, region_size);
+
+ print_pci_topology(s);
}
if (SN_HWPERF_FOREIGN(obj)) {
@@ -300,17 +293,6 @@ static int sn_topology_show(struct seq_file *s, void *d)
seq_putc(s, '\n');
}
}
-
- /*
- * PCI busses attached to this node, if any
- */
- 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);
-
- }
}
if (obj->ports) {