gru: allow users to specify gru chiplet 2

Add support to the GRU driver to allow users to specify the blade &
chiplet for allocation of GRU contexts.  Add new statistics for context
loading/unloading/retargeting.  Also deleted a few GRU stats that were no
longer being unused.

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>

1 files changed, 2 insertions, 11 deletions

diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c
index a69d119921f..321ad809f34 100644
--- a/drivers/misc/sgi-gru/grufault.c
+++ b/drivers/misc/sgi-gru/grufault.c
@@ -546,17 +546,7 @@ int gru_handle_user_call_os(unsigned long cb)
         if (ucbnum >= gts->ts_cbr_au_count * GRU_CBR_AU_SIZE)
                 goto exit;
 
-        /*
-         * If force_unload is set, the UPM TLB fault is phony. The task
-         * has migrated to another node and the GSEG must be moved. Just
-         * unload the context. The task will page fault and assign a new
-         * context.
-         */
-        if (gts->ts_tgid_owner == current->tgid && gts->ts_blade >= 0 &&
-                                gts->ts_blade != uv_numa_blade_id()) {
-                STAT(call_os_offnode_reference);
-                gts->ts_force_unload = 1;
-        }
+        gru_check_context_placement(gts);
 
         /*
          * CCH may contain stale data if ts_force_cch_reload is set.
@@ -771,6 +761,7 @@ int gru_set_context_option(unsigned long arg)
                 } else {
                         gts->ts_user_blade_id = req.val1;
                         gts->ts_user_chiplet_id = req.val0;
+                        gru_check_context_placement(gts);
                 }
                 break;
         case sco_gseg_owner: