[PATCH 2/3] accel/habanalabs: add traces for dma mappings

[Oded Gabbay]

From: Ohad Sharabi <osharabi at habana.ai>

In order to get a full picture of DMA mappings (e.g. to track DMAR
errors), DMA mappings APIs should be covered.

Signed-off-by: Ohad Sharabi <osharabi at habana.ai>
Reviewed-by: Oded Gabbay <ogabbay at kernel.org>
Signed-off-by: Oded Gabbay <ogabbay at kernel.org>
---
 include/trace/events/habanalabs.h | 43 +++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/include/trace/events/habanalabs.h b/include/trace/events/habanalabs.h
index 951643e6a7a9..0d3667399d01 100644
--- a/include/trace/events/habanalabs.h
+++ b/include/trace/events/habanalabs.h
@@ -87,6 +87,49 @@ DEFINE_EVENT(habanalabs_dma_alloc_template, habanalabs_dma_free,
 	TP_PROTO(struct device *dev, u64 cpu_addr, u64 dma_addr, size_t size, const char *caller),
 	TP_ARGS(dev, cpu_addr, dma_addr, size, caller));
 
+DECLARE_EVENT_CLASS(habanalabs_dma_map_template,
+	TP_PROTO(struct device *dev, u64 phys_addr, u64 dma_addr, size_t len,
+			enum dma_data_direction dir, const char *caller),
+
+	TP_ARGS(dev, phys_addr, dma_addr, len, dir, caller),
+
+	TP_STRUCT__entry(
+		__string(dname, dev_name(dev))
+		__field(u64, phys_addr)
+		__field(u64, dma_addr)
+		__field(u32, len)
+		__field(int, dir)
+		__field(const char *, caller)
+	),
+
+	TP_fast_assign(
+		__assign_str(dname, dev_name(dev));
+		__entry->phys_addr = phys_addr;
+		__entry->dma_addr = dma_addr;
+		__entry->len = len;
+		__entry->dir = dir;
+		__entry->caller = caller;
+	),
+
+	TP_printk("%s: phys_addr: %#llx, dma_addr: %#llx, len: %#x, dir: %d, caller: %s",
+		__get_str(dname),
+		__entry->phys_addr,
+		__entry->dma_addr,
+		__entry->len,
+		__entry->dir,
+		__entry->caller)
+);
+
+DEFINE_EVENT(habanalabs_dma_map_template, habanalabs_dma_map_page,
+	TP_PROTO(struct device *dev, u64 phys_addr, u64 dma_addr, size_t len,
+			enum dma_data_direction dir, const char *caller),
+	TP_ARGS(dev, phys_addr, dma_addr, len, dir, caller));
+
+DEFINE_EVENT(habanalabs_dma_map_template, habanalabs_dma_unmap_page,
+	TP_PROTO(struct device *dev, u64 phys_addr, u64 dma_addr, size_t len,
+			enum dma_data_direction dir, const char *caller),
+	TP_ARGS(dev, phys_addr, dma_addr, len, dir, caller));
+
 DECLARE_EVENT_CLASS(habanalabs_comms_template,
 	TP_PROTO(struct device *dev, char *op_str),
 
-- 
2.34.1