opencsd: memaccess: Allow memory accessors to have cache invalidated by decoder.

Adds interface to allow decoders to invalidate any cacheing in the memory accessor objects.
Typically used when a context trace element may have changed the memory map.

Signed-off-by: Mike Leach <mike.leach@linaro.org>

2 files changed, 10 insertions, 0 deletions

diff --git a/decoder/include/interfaces/trc_tgt_mem_access_i.h b/decoder/include/interfaces/trc_tgt_mem_access_i.h
index effc9b5..68a4e10 100644
--- a/decoder/include/interfaces/trc_tgt_mem_access_i.h
+++ b/decoder/include/interfaces/trc_tgt_mem_access_i.h
@@ -83,6 +83,14 @@ public:
                                             const ocsd_mem_space_acc_t mem_space, 
                                             uint32_t *num_bytes, 
                                             uint8_t *p_buffer) = 0;
+
+    /*! 
+     * Invalidate any caching that the memory accessor functions are using.
+     * Generally called when a memory context changes in the trace.
+     *
+     * @param cs_trace_id : protocol source trace ID.
+     */
+    virtual void InvalidateMemAccCache(const uint8_t cs_trace_id) = 0;
 };
 
 
diff --git a/decoder/include/mem_acc/trc_mem_acc_mapper.h b/decoder/include/mem_acc/trc_mem_acc_mapper.h
index a700e9d..4a08498 100644
--- a/decoder/include/mem_acc/trc_mem_acc_mapper.h
+++ b/decoder/include/mem_acc/trc_mem_acc_mapper.h
@@ -61,6 +61,8 @@ public:
                                             uint32_t *num_bytes, 
                                             uint8_t *p_buffer);
 
+    virtual void InvalidateMemAccCache(const uint8_t cs_trace_id);
+
 // mapper memory area configuration interface
 
     // add an accessor to this map