diff options
| -rw-r--r-- | drivers/misc/sgi-gru/grufile.c | 1 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grumain.c | 13 |
2 files changed, 10 insertions, 4 deletions
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c index 812678d8b47..f8dcdb1a0ec 100644 --- a/drivers/misc/sgi-gru/grufile.c +++ b/drivers/misc/sgi-gru/grufile.c @@ -274,6 +274,7 @@ static void gru_init_chiplet(struct gru_state *gru, unsigned long paddr, gru->gs_blade_id = bid; gru->gs_cbr_map = (GRU_CBR_AU == 64) ? ~0 : (1UL << GRU_CBR_AU) - 1; gru->gs_dsr_map = (1UL << GRU_DSR_AU) - 1; + gru->gs_asid_limit = MAX_ASID; gru_tgh_flush_init(gru); gru_dbg(grudev, "bid %d, nid %d, gid %d, vaddr %p (0x%lx)\n", bid, nid, gru->gs_gid, gru->gs_gru_base_vaddr, diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c index de60458f6d1..5fc7b5ecde6 100644 --- a/drivers/misc/sgi-gru/grumain.c +++ b/drivers/misc/sgi-gru/grumain.c @@ -79,7 +79,6 @@ static int gru_wrap_asid(struct gru_state *gru) gru_dbg(grudev, "gid %d\n", gru->gs_gid); STAT(asid_wrap); gru->gs_asid_gen++; - gru_flush_all_tlb(gru); return MIN_ASID; } @@ -93,6 +92,7 @@ static int gru_reset_asid_limit(struct gru_state *gru, int asid) limit = MAX_ASID; if (asid >= limit) asid = gru_wrap_asid(gru); + gru_flush_all_tlb(gru); gid = gru->gs_gid; again: for (i = 0; i < GRU_NUM_CCH; i++) { @@ -131,12 +131,10 @@ static int gru_assign_asid(struct gru_state *gru) { int asid; - spin_lock(&gru->gs_asid_lock); gru->gs_asid += ASID_INC; asid = gru->gs_asid; if (asid >= gru->gs_asid_limit) asid = gru_reset_asid_limit(gru, asid); - spin_unlock(&gru->gs_asid_lock); gru_dbg(grudev, "gid %d, asid 0x%x\n", gru->gs_gid, asid); return asid; @@ -227,7 +225,9 @@ static int gru_load_mm_tracker(struct gru_state *gru, spin_lock(&gms->ms_asid_lock); asid = asids->mt_asid; - if (asid == 0 || asids->mt_asid_gen != gru->gs_asid_gen) { + spin_lock(&gru->gs_asid_lock); + if (asid == 0 || (asids->mt_ctxbitmap == 0 && asids->mt_asid_gen != + gru->gs_asid_gen)) { asid = gru_assign_asid(gru); asids->mt_asid = asid; asids->mt_asid_gen = gru->gs_asid_gen; @@ -235,6 +235,7 @@ static int gru_load_mm_tracker(struct gru_state *gru, } else { STAT(asid_reuse); } + spin_unlock(&gru->gs_asid_lock); BUG_ON(asids->mt_ctxbitmap & ctxbitmap); asids->mt_ctxbitmap |= ctxbitmap; @@ -259,10 +260,12 @@ static void gru_unload_mm_tracker(struct gru_state *gru, asids = &gms->ms_asids[gru->gs_gid]; ctxbitmap = (1 << gts->ts_ctxnum); spin_lock(&gms->ms_asid_lock); + spin_lock(&gru->gs_asid_lock); BUG_ON((asids->mt_ctxbitmap & ctxbitmap) != ctxbitmap); asids->mt_ctxbitmap ^= ctxbitmap; gru_dbg(grudev, "gid %d, gts %p, gms %p, ctxnum 0x%d, asidmap 0x%lx\n", gru->gs_gid, gts, gms, gts->ts_ctxnum, gms->ms_asidmap[0]); + spin_unlock(&gru->gs_asid_lock); spin_unlock(&gms->ms_asid_lock); } @@ -412,6 +415,7 @@ static void gru_free_gru_context(struct gru_thread_state *gts) __clear_bit(gts->ts_ctxnum, &gru->gs_context_map); gts->ts_ctxnum = NULLCTX; gts->ts_gru = NULL; + gts->ts_blade = -1; spin_unlock(&gru->gs_lock); gts_drop(gts); @@ -731,6 +735,7 @@ again: } reserve_gru_resources(gru, gts); gts->ts_gru = gru; + gts->ts_blade = gru->gs_blade_id; gts->ts_ctxnum = find_first_zero_bit(&gru->gs_context_map, GRU_NUM_CCH); BUG_ON(gts->ts_ctxnum == GRU_NUM_CCH); |