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IB/hfi1: Add MMU tracing 

Add a new tracepoint type for the MMU functions and calls
to that tracepoint to allow tracing of MMU functionality.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Mitko Haralanov 2016-03-08 11:14:59 -08:00 committed by Doug Ledford
parent df5a00f81d
commit 353b71c7c0
3 changed files with 12 additions and 0 deletions
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10
drivers/staging/rdma/hfi1/mmu_rb.c
View File

@ -157,6 +157,8 @@ int hfi1_mmu_rb_insert(struct rb_root *root, struct mmu_rb_node *mnode)
return -EINVAL;
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;
@ -181,7 +183,11 @@ static struct mmu_rb_node *__mmu_rb_search(struct mmu_rb_handler *handler,
{
struct mmu_rb_node *node;
hfi1_cdbg(MMU, "Searching for addr 0x%llx, len %u", addr, len);
node = __mmu_int_rb_iter_first(handler->root, addr, len);
if (node)
hfi1_cdbg(MMU, "Found node addr 0x%llx, len %u", node->addr,
node->len);
return node;
}
@ -189,6 +195,8 @@ static void __mmu_rb_remove(struct mmu_rb_handler *handler,
struct mmu_rb_node *node, bool arg)
{
/* 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);
__mmu_int_rb_remove(node, handler->root);
if (handler->ops->remove)
handler->ops->remove(handler->root, node, arg);
@ -266,6 +274,8 @@ static void mmu_notifier_mem_invalidate(struct mmu_notifier *mn,
spin_lock_irqsave(&handler->lock, flags);
for (node = __mmu_int_rb_iter_first(root, start, end); node;
node = __mmu_int_rb_iter_next(node, start, end)) {
hfi1_cdbg(MMU, "Invalidating node addr 0x%llx, len %u",
node->addr, node->len);
if (handler->ops->invalidate(root, node))
__mmu_rb_remove(handler, node, true);
}

1
drivers/staging/rdma/hfi1/trace.c
View File

@ -232,3 +232,4 @@ __hfi1_trace_fn(DC8051);
__hfi1_trace_fn(FIRMWARE);
__hfi1_trace_fn(RCVCTRL);
__hfi1_trace_fn(TID);
__hfi1_trace_fn(MMU);

1
drivers/staging/rdma/hfi1/trace.h
View File

@ -1340,6 +1340,7 @@ __hfi1_trace_def(DC8051);
__hfi1_trace_def(FIRMWARE);
__hfi1_trace_def(RCVCTRL);
__hfi1_trace_def(TID);
__hfi1_trace_def(MMU);
#define hfi1_cdbg(which, fmt, ...) \
__hfi1_trace_##which(__func__, fmt, ##__VA_ARGS__)