Device segment MMIO map & unmap system calls

Change-Id: I233c2677909c0c16536133c189ebbd21e4415e22
Reviewed-on: http://gfw160.austin.ibm.com:8080/gerrit/208
Tested-by: Jenkins Server
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/src/usr/testcore/kernel/slbtest.H b/src/usr/testcore/kernel/slbtest.H
index f773efe2d..65fe3bd08 100644
--- a/src/usr/testcore/kernel/slbtest.H
+++ b/src/usr/testcore/kernel/slbtest.H
@@ -9,6 +9,7 @@
 #include <arch/ppc.H>
 #include <sys/time.h>
 #include <sys/task.h>
+#include <sys/mmio.h>
 
 class slbtest: public CxxTest::TestSuite
 {
@@ -19,6 +20,7 @@ class slbtest: public CxxTest::TestSuite
         void testSLB()
         {
             rc = 0;
+            printk("Data Segment exception expected in 1TB segment test - ");
             task_create(writeEA1TB, this);
             while (rc == 0) task_yield();
             task_yield();
@@ -28,6 +30,39 @@ class slbtest: public CxxTest::TestSuite
             }
         }
 
+        void testDevSeg()
+        {
+            int rc = 0;
+            uint64_t ra = 2*1024*1024;
+            printk("Map Device @ ra = 0x%lX using mmio_map\n",ra);
+            uint64_t* virtAddrMMIO = static_cast<uint64_t*>
+                                (mmio_map(reinterpret_cast<void*>(ra), 1));
+            if (virtAddrMMIO == NULL)
+            {
+                TS_FAIL("Failed to map using mmio_map\n");
+            }
+            printk("Unmap Device @ va = %p using mmio_unmap\n",virtAddrMMIO);
+            rc = mmio_unmap(reinterpret_cast<void*>(virtAddrMMIO), 1);
+            if (rc != 0)
+            {
+                TS_FAIL("Failed to unmap using mmio_unmap\n");
+            }
+
+            printk("Map Device @ ra = 0x%lX using dev_map\n",ra);
+            uint64_t* virtAddrDEV = static_cast<uint64_t*>
+                     (mmio_dev_map(reinterpret_cast<void*>(ra), THIRTYTWO_GB));
+            if (virtAddrDEV == NULL)
+            {
+                TS_FAIL("Failed to map using mmio_dev_map\n");
+            }
+            printk("Unmap Device @ va = %p using dev_unmap\n",virtAddrDEV);
+            rc = mmio_dev_unmap(reinterpret_cast<void*>(virtAddrDEV));
+            if (rc != 0)
+            {
+                TS_FAIL("Failed to unmap using mmio_dev_unmap\n");
+            }
+        }
+
     private:
 
         static void writeEA1TB(void *i_p)