diff options
| author | Michael J. Ruhl <michael.j.ruhl@intel.com> | 2017-08-28 11:23:27 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-08-28 19:12:27 -0400 |
| commit | 34ab4de77fe512ba3aeabdcdc97504bd19791511 (patch) | |
| tree | 52e9fbbbc4b35c8ef2282a8447e22beb17378a1e /drivers/infiniband/hw/hfi1/mmu_rb.c | |
| parent | ba81a427c35c827bb220f1a87231b3460e0bd879 (diff) | |
IB/hif1: Remove static tracing from SDMA hot path
The hfi1_cdbg() macro can be instantiated in the hot path even when it
is not in use. This shows up on perf profiles.
Rework the macros (for SDMA and MMU), to use the trace interface directly
to eliminate this performance hit.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/mmu_rb.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/mmu_rb.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/hfi1/mmu_rb.c b/drivers/infiniband/hw/hfi1/mmu_rb.c index d41fd87a39f2..13dcef08cac1 100644 --- a/drivers/infiniband/hw/hfi1/mmu_rb.c +++ b/drivers/infiniband/hw/hfi1/mmu_rb.c @@ -1,5 +1,5 @@ /* - * Copyright(c) 2016 Intel Corporation. + * Copyright(c) 2016 - 2017 Intel Corporation. * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. @@ -172,9 +172,8 @@ int hfi1_mmu_rb_insert(struct mmu_rb_handler *handler, unsigned long flags; int ret = 0; + trace_hfi1_mmu_rb_insert(mnode->addr, mnode->len); spin_lock_irqsave(&handler->lock, flags); - hfi1_cdbg(MMU, "Inserting node addr 0x%llx, len %u", mnode->addr, - mnode->len); node = __mmu_rb_search(handler, mnode->addr, mnode->len); if (node) { ret = -EINVAL; @@ -200,7 +199,7 @@ static struct mmu_rb_node *__mmu_rb_search(struct mmu_rb_handler *handler, { struct mmu_rb_node *node = NULL; - hfi1_cdbg(MMU, "Searching for addr 0x%llx, len %u", addr, len); + trace_hfi1_mmu_rb_search(addr, len); if (!handler->ops->filter) { node = __mmu_int_rb_iter_first(&handler->root, addr, (addr + len) - 1); @@ -281,8 +280,7 @@ void hfi1_mmu_rb_remove(struct mmu_rb_handler *handler, unsigned long flags; /* Validity of handler and node pointers has been checked by caller. */ - hfi1_cdbg(MMU, "Removing node addr 0x%llx, len %u", node->addr, - node->len); + trace_hfi1_mmu_rb_remove(node->addr, node->len); spin_lock_irqsave(&handler->lock, flags); __mmu_int_rb_remove(node, &handler->root); list_del(&node->list); /* remove from LRU list */ @@ -321,8 +319,7 @@ static void mmu_notifier_mem_invalidate(struct mmu_notifier *mn, node; node = ptr) { /* Guard against node removal. */ ptr = __mmu_int_rb_iter_next(node, start, end - 1); - hfi1_cdbg(MMU, "Invalidating node addr 0x%llx, len %u", - node->addr, node->len); + trace_hfi1_mmu_mem_invalidate(node->addr, node->len); if (handler->ops->invalidate(handler->ops_arg, node)) { __mmu_int_rb_remove(node, root); /* move from LRU list to delete list */ |