diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/sgi-gru/grufault.c | 27 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grumain.c | 4 | ||||
| -rw-r--r-- | drivers/misc/sgi-gru/grutables.h | 5 |
3 files changed, 29 insertions, 7 deletions
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index f15152165a99..3220e95be6b5 100644 --- a/drivers/misc/sgi-gru/grufault.c +++ b/drivers/misc/sgi-gru/grufault.c @@ -166,7 +166,8 @@ static inline struct gru_state *irq_to_gru(int irq) * the GRU, atomic operations must be used to clear bits. */ static void get_clear_fault_map(struct gru_state *gru, - struct gru_tlb_fault_map *map) + struct gru_tlb_fault_map *imap, + struct gru_tlb_fault_map *dmap) { unsigned long i, k; struct gru_tlb_fault_map *tfm; @@ -177,7 +178,11 @@ static void get_clear_fault_map(struct gru_state *gru, k = tfm->fault_bits[i]; if (k) k = xchg(&tfm->fault_bits[i], 0UL); - map->fault_bits[i] = k; + imap->fault_bits[i] = k; + k = tfm->done_bits[i]; + if (k) + k = xchg(&tfm->done_bits[i], 0UL); + dmap->fault_bits[i] = k; } /* @@ -449,7 +454,7 @@ failactive: irqreturn_t gru_intr(int irq, void *dev_id) { struct gru_state *gru; - struct gru_tlb_fault_map map; + struct gru_tlb_fault_map imap, dmap; struct gru_thread_state *gts; struct gru_tlb_fault_handle *tfh = NULL; int cbrnum, ctxnum; @@ -462,11 +467,19 @@ irqreturn_t gru_intr(int irq, void *dev_id) raw_smp_processor_id(), irq); return IRQ_NONE; } - get_clear_fault_map(gru, &map); - gru_dbg(grudev, "irq %d, gru %x, map 0x%lx\n", irq, gru->gs_gid, - map.fault_bits[0]); + get_clear_fault_map(gru, &imap, &dmap); + gru_dbg(grudev, + "irq %d, gid %d, imap %016lx %016lx, dmap %016lx %016lx\n", + irq, gru->gs_gid, dmap.fault_bits[0], dmap.fault_bits[1], + dmap.fault_bits[0], dmap.fault_bits[1]); + + for_each_cbr_in_tfm(cbrnum, dmap.fault_bits) { + 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, map.fault_bits) { + for_each_cbr_in_tfm(cbrnum, imap.fault_bits) { tfh = get_tfh_by_index(gru, cbrnum); prefetchw(tfh); /* Helps on hdw, required for emulator */ diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c index afc4c473c794..e38a0f1775ff 100644 --- a/drivers/misc/sgi-gru/grumain.c +++ b/drivers/misc/sgi-gru/grumain.c @@ -572,8 +572,12 @@ void gru_load_context(struct gru_thread_state *gts) if (is_kernel_context(gts)) { cch->unmap_enable = 1; + cch->tfm_done_bit_enable = 1; + cch->cb_int_enable = 1; } else { cch->unmap_enable = 0; + cch->tfm_done_bit_enable = 0; + cch->cb_int_enable = 0; asid = gru_load_mm_tracker(gru, gts); for (i = 0; i < 8; i++) { cch->asid[i] = asid + i; diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h index 5f8f3bda2fa9..ca81800146ff 100644 --- a/drivers/misc/sgi-gru/grutables.h +++ b/drivers/misc/sgi-gru/grutables.h @@ -462,6 +462,11 @@ struct gru_blade_state { struct rw_semaphore bs_kgts_sema; /* lock for kgts */ struct gru_thread_state *bs_kgts; /* GTS for kernel use */ + /* ---- the following are used for managing kernel async GRU CBRs --- */ + int bs_async_dsr_bytes; /* DSRs for async */ + int bs_async_cbrs; /* CBRs AU for async */ + struct completion *bs_async_wq; + /* ---- the following are protected by the bs_lock spinlock ---- */ spinlock_t bs_lock; /* lock used for stealing contexts */ |