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Commit 353b71c7 authored by Mitko Haralanov's avatar Mitko Haralanov Committed by Doug Ledford
Browse files

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: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: default avatarDean Luick <dean.luick@intel.com>
Signed-off-by: default avatarMitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: default avatarJubin John <jubin.john@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent df5a00f8

drivers/staging/rdma/hfi1/mmu_rb.c

+10 −0
Original line number Diff line number Diff line
@@ -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);

	}

drivers/staging/rdma/hfi1/trace.c

+1 −0
Original line number Diff line number Diff line
@@ -232,3 +232,4 @@ __hfi1_trace_fn(DC8051); 
__hfi1_trace_fn(FIRMWARE);

__hfi1_trace_fn(RCVCTRL);

__hfi1_trace_fn(TID);

__hfi1_trace_fn(MMU);

drivers/staging/rdma/hfi1/trace.h

+1 −0
Original line number Diff line number Diff line
@@ -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__)