Seed the files in the pk directory

Change-Id: I03398098e6625f0e06e4a96769b03002a1c71d35
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/15813
Reviewed-by: Glenn R. Miles <milesg@us.ibm.com>
Reviewed-by: Derk Rembold <rembold@de.ibm.com>
Tested-by: Derk Rembold <rembold@de.ibm.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/pk/trace/pk_trace_binary.c b/pk/trace/pk_trace_binary.c
new file mode 100644
index 00000000..58b417a3
--- /dev/null
+++ b/pk/trace/pk_trace_binary.c
@@ -0,0 +1,91 @@
+//-----------------------------------------------------------------------------
+// *! (C) Copyright International Business Machines Corp. 2014
+// *! All Rights Reserved -- Property of IBM
+// *! *** IBM Confidential ***
+//-----------------------------------------------------------------------------
+
+/// \file pk_trace_binary.c
+/// \brief PK Trace function for dumping memory contents
+///
+/// The pk_trace_binary function is called by the PK_TRACE_BINARY() macro.
+///
+
+
+#include "pk.h"
+#include "pk_trace.h"
+
+#if (PK_TRACE_SUPPORT && PK_TIMER_SUPPORT)
+void pk_trace_binary(uint32_t i_hash_and_size, void* bufp)
+{
+    PkTraceBinary           footer;
+    PkTraceBinary*          footer_ptr;
+    PkTraceState            state;
+    uint64_t*               ptr64;
+    uint64_t                tb64;
+    PkMachineContext        ctx;
+    uint32_t                data_size;
+    uint32_t                cb_offset;
+    uint32_t                footer_offset;
+    uint8_t*                dest;
+    uint8_t*                src;
+    uint32_t                index;
+
+    //fill in the footer data
+    tb64 = pk_timebase_get();
+    footer.parms.word32 = i_hash_and_size; //this has the size and hash
+    state.tbu32 = tb64 >> 32;
+    footer.time_format.word32 = tb64 & 0x00000000ffffffffull;
+    footer.time_format.format = PK_TRACE_FORMAT_BINARY;
+
+    //round up to 8 byte boundary
+    data_size = (footer.parms.num_bytes + 7) & ~0x00000007ul;
+
+    //limit data size
+    if(data_size > PK_TRACE_CLIPPED_BINARY_SZ)
+    {
+        data_size = PK_TRACE_CLIPPED_BINARY_SZ;
+    }
+
+    //*****The following operations must be done atomically*****
+    pk_critical_section_enter(&ctx);
+
+    //load in the offset in the cb for the entry we are adding
+    cb_offset = g_pk_trace_buf.state.offset;
+
+    //Find the offset for the footer (at the end of the entry)
+    footer_offset = cb_offset + data_size;
+
+    //calculate the address of the footer
+    ptr64 = (uint64_t*)&g_pk_trace_buf.cb[footer_offset & PK_TRACE_CB_MASK];
+
+    //calculate the offset for the next entry in the cb
+    state.offset = footer_offset + sizeof(PkTraceBinary);
+
+    //update the cb state (tbu and offset)
+    g_pk_trace_buf.state.word64 = state.word64;
+
+    //write the footer data to the circular buffer including the
+    //timesamp, string hash and data size
+    *ptr64 = footer.word64;
+
+    //*******************exit the critical section***************
+    pk_critical_section_exit(&ctx);
+
+    //write data to the circular buffer
+    for(src = bufp, index = 0;
+        index < data_size;
+        index++)
+    {
+        dest = &g_pk_trace_buf.cb[(cb_offset + index) & PK_TRACE_CB_MASK];
+        *dest = *(src++);
+    }
+
+    //Mark the trace entry update as being completed
+    footer_ptr = (PkTraceBinary*)ptr64;
+    footer_ptr->parms.complete = 1;
+
+}
+
+#endif
+
+