gru: add additional GRU statistics
Add additional GRU statistics & debug messages.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c
index a78aa79..7d757e9 100644
--- a/drivers/misc/sgi-gru/grufault.c
+++ b/drivers/misc/sgi-gru/grufault.c
@@ -303,7 +303,7 @@
struct gru_tlb_fault_handle *tfh,
struct gru_instruction_bits *cbk)
{
- int pageshift = 0, asid, write, ret, atomic = !cbk;
+ int pageshift = 0, asid, write, ret, atomic = !cbk, indexway;
unsigned long gpa = 0, vaddr = 0;
/*
@@ -333,6 +333,7 @@
write = (tfh->cause & TFHCAUSE_TLB_MOD) != 0;
vaddr = tfh->missvaddr;
asid = tfh->missasid;
+ indexway = tfh->indexway;
if (asid == 0)
goto failnoasid;
@@ -361,11 +362,12 @@
gru_cb_set_istatus_active(cbk);
tfh_write_restart(tfh, gpa, GAA_RAM, vaddr, asid, write,
GRU_PAGESIZE(pageshift));
- STAT(tlb_dropin);
gru_dbg(grudev,
- "%s: tfh 0x%p, vaddr 0x%lx, asid 0x%x, ps %d, gpa 0x%lx\n",
- ret ? "non-atomic" : "atomic", tfh, vaddr, asid,
- pageshift, gpa);
+ "%s: gid %d, gts 0x%p, tfh 0x%p, vaddr 0x%lx, asid 0x%x, indexway 0x%x,"
+ " rw %d, ps %d, gpa 0x%lx\n",
+ atomic ? "atomic" : "non-atomic", gts->ts_gru->gs_gid, gts, tfh, vaddr, asid,
+ indexway, write, pageshift, gpa);
+ STAT(tlb_dropin);
return 0;
failnoasid:
@@ -460,12 +462,14 @@
dmap.fault_bits[0], dmap.fault_bits[1]);
for_each_cbr_in_tfm(cbrnum, dmap.fault_bits) {
+ STAT(intr_cbr);
complete(gru->gs_blade->bs_async_wq);
gru_dbg(grudev, "gid %d, cbr_done %d, done %d\n",
gru->gs_gid, cbrnum, gru->gs_blade->bs_async_wq->done);
}
for_each_cbr_in_tfm(cbrnum, imap.fault_bits) {
+ STAT(intr_tfh);
tfh = get_tfh_by_index(gru, cbrnum);
prefetchw(tfh); /* Helps on hdw, required for emulator */
@@ -551,7 +555,6 @@
int ucbnum, cbrnum, ret = -EINVAL;
STAT(call_os);
- gru_dbg(grudev, "address 0x%lx\n", cb);
/* sanity check the cb pointer */
ucbnum = get_cb_number((void *)cb);
@@ -561,6 +564,7 @@
gts = gru_find_lock_gts(cb);
if (!gts)
return -EINVAL;
+ gru_dbg(grudev, "address 0x%lx, gid %d, gts 0x%p\n", cb, gts->ts_gru ? gts->ts_gru->gs_gid : -1, gts);
if (ucbnum >= gts->ts_cbr_au_count * GRU_CBR_AU_SIZE)
goto exit;
@@ -603,11 +607,11 @@
if (copy_from_user(&excdet, (void __user *)arg, sizeof(excdet)))
return -EFAULT;
- gru_dbg(grudev, "address 0x%lx\n", excdet.cb);
gts = gru_find_lock_gts(excdet.cb);
if (!gts)
return -EINVAL;
+ gru_dbg(grudev, "address 0x%lx, gid %d, gts 0x%p\n", excdet.cb, gts->ts_gru ? gts->ts_gru->gs_gid : -1, gts);
ucbnum = get_cb_number((void *)excdet.cb);
if (ucbnum >= gts->ts_cbr_au_count * GRU_CBR_AU_SIZE) {
ret = -EINVAL;