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authorJack Steiner <steiner@sgi.com>2009-06-18 03:28:19 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-19 00:03:59 +0400
commitcd1334f03f7b799bc6893b511daf2080e8f73863 (patch)
tree468d9bc99e19aa7895321927eaf30c4dae55166f /drivers/misc/sgi-gru/grumain.c
parentd6580a9f15238b87e618310c862231ae3f352d2d (diff)
downloadlinux-cd1334f03f7b799bc6893b511daf2080e8f73863.tar.xz
gru: bug fixes for GRU exception handling
Bug fixes for GRU exception handling. Additional fields from the CBR must be returned to the user to allow the user to correctly diagnose GRU exceptions. Handle endcase in TFH TLB miss handling. Verify that TFH actually indicates a pending exception. 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>
Diffstat (limited to 'drivers/misc/sgi-gru/grumain.c')
-rw-r--r--drivers/misc/sgi-gru/grumain.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c
index ec3f7a17d221..374af38862e6 100644
--- a/drivers/misc/sgi-gru/grumain.c
+++ b/drivers/misc/sgi-gru/grumain.c
@@ -599,6 +599,9 @@ int gru_update_cch(struct gru_thread_state *gts, int force_unload)
cch->sizeavail[i] = gts->ts_sizeavail;
gts->ts_tlb_int_select = gru_cpu_fault_map_id();
cch->tlb_int_select = gru_cpu_fault_map_id();
+ cch->tfm_fault_bit_enable =
+ (gts->ts_user_options == GRU_OPT_MISS_FMM_POLL
+ || gts->ts_user_options == GRU_OPT_MISS_FMM_INTR);
} else {
for (i = 0; i < 8; i++)
cch->asid[i] = 0;